1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2007, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 -- This package defines the structure of the abstract syntax tree. The Tree
35 -- package provides a basic tree structure. Sinfo describes how this structure
36 -- is used to represent the syntax of an Ada program.
38 -- The grammar in the RM is followed very closely in the tree
39 -- design, and is repeated as part of this source file.
41 -- The tree contains not only the full syntactic representation of the
42 -- program, but also the results of semantic analysis. In particular, the
43 -- nodes for defining identifiers, defining character literals and defining
44 -- operator symbols, collectively referred to as entities, represent what
45 -- would normally be regarded as the symbol table information. In addition a
46 -- number of the tree nodes contain semantic information.
48 -- WARNING: Several files are automatically generated from this package.
49 -- See below for details.
51 with Namet; use Namet;
52 with Types; use Types;
53 with Uintp; use Uintp;
54 with Urealp; use Urealp;
58 ---------------------------------
59 -- Making Changes to This File --
60 ---------------------------------
62 -- If changes are made to this file, a number of related steps must be
63 -- carried out to ensure consistency. First, if a field access function is
64 -- added, it appears in seven places:
66 -- The documentation associated with the node
67 -- The spec of the access function in sinfo.ads
68 -- The body of the access function in sinfo.adb
69 -- The pragma Inline at the end of sinfo.ads for the access function
70 -- The spec of the set procedure in sinfo.ads
71 -- The body of the set procedure in sinfo.adb
72 -- The pragma Inline at the end of sinfo.ads for the set procedure
74 -- The field chosen must be consistent in all places, and, for a node that
75 -- is a subexpression, must not overlap any of the standard expression
78 -- In addition, if any of the standard expression fields is changed, then
79 -- the utility program which creates the Treeprs spec (in file treeprs.ads)
80 -- must be updated appropriately, since it special cases expression fields.
82 -- If a new tree node is added, then the following changes are made
84 -- Add it to the documentation in the appropriate place
85 -- Add its fields to this documentation section
86 -- Define it in the appropriate classification in Node_Kind
87 -- In the body (sinfo), add entries to the access functions for all
88 -- its fields (except standard expression fields) to include the new
89 -- node in the checks.
90 -- Add an appropriate section to the case statement in sprint.adb
91 -- Add an appropriate section to the case statement in sem.adb
92 -- Add an appropriate section to the case statement in exp_util.adb
93 -- (Insert_Actions procedure)
94 -- For a subexpression, add an appropriate section to the case
95 -- statement in sem_eval.adb
96 -- For a subexpression, add an appropriate section to the case
97 -- statement in sem_res.adb
99 -- Finally, four utility programs must be run:
101 -- Run CSinfo to check that you have made the changes consistently. It
102 -- checks most of the rules given above, with clear error messages. This
103 -- utility reads sinfo.ads and sinfo.adb and generates a report to
106 -- Run XSinfo to create sinfo.h, the corresponding C header. This
107 -- utility reads sinfo.ads and generates sinfo.h. Note that it does
108 -- not need to read sinfo.adb, since the contents of the body are
109 -- algorithmically determinable from the spec.
111 -- Run XTreeprs to create treeprs.ads, an updated version of the module
112 -- that is used to drive the tree print routine. This utility reads (but
113 -- does not modify) treeprs.adt, the template that provides the basic
114 -- structure of the file, and then fills in the data from the comments
117 -- Run XNmake to create nmake.ads and nmake.adb, the package body and
118 -- spec of the Nmake package which contains functions for constructing
121 -- All of the above steps except CSinfo are done automatically by the
122 -- build scripts when you do a full bootstrap.
124 -- Note: sometime we could write a utility that actually generated the body
125 -- of sinfo from the spec instead of simply checking it, since, as noted
126 -- above, the contents of the body can be determined from the spec.
128 --------------------------------
129 -- Implicit Nodes in the Tree --
130 --------------------------------
132 -- Generally the structure of the tree very closely follows the grammar as
133 -- defined in the RM. However, certain nodes are omitted to save space and
134 -- simplify semantic processing. Two general classes of such omitted nodes
137 -- If the only possibilities for a non-terminal are one or more other
138 -- non-terminals (i.e. the rule is a "skinny" rule), then usually the
139 -- corresponding node is omitted from the tree, and the target construct
140 -- appears directly. For example, a real type definition is either
141 -- floating point definition or a fixed point definition. No explicit node
142 -- appears for real type definition. Instead either the floating point
143 -- definition or fixed point definition appears directly.
145 -- If a non-terminal corresponds to a list of some other non-terminal
146 -- (possibly with separating punctuation), then usually it is omitted from
147 -- the tree, and a list of components appears instead. For example,
148 -- sequence of statements does not appear explicitly in the tree. Instead
149 -- a list of statements appears directly.
151 -- Some additional cases of omitted nodes occur and are documented
152 -- individually. In particular, many nodes are omitted in the tree
153 -- generated for an expression.
155 -------------------------------------------
156 -- Handling of Defining Identifier Lists --
157 -------------------------------------------
159 -- In several declarative forms in the syntax, lists of defining
160 -- identifiers appear (object declarations, component declarations, number
161 -- declarations etc.)
163 -- The semantics of such statements are equivalent to a series of identical
164 -- declarations of single defining identifiers (except that conformance
165 -- checks require the same grouping of identifiers in the parameter case).
167 -- To simplify semantic processing, the parser breaks down such multiple
168 -- declaration cases into sequences of single declarations, duplicating
169 -- type and initialization information as required. The flags More_Ids and
170 -- Prev_Ids are used to record the original form of the source in the case
171 -- where the original source used a list of names, More_Ids being set on
172 -- all but the last name and Prev_Ids being set on all but the first name.
173 -- These flags are used to reconstruct the original source (e.g. in the
174 -- Sprint package), and also are included in the conformance checks, but
175 -- otherwise have no semantic significance.
177 -- Note: the reason that we use More_Ids and Prev_Ids rather than
178 -- First_Name and Last_Name flags is so that the flags are off in the
179 -- normal one identifier case, which minimizes tree print output.
181 -----------------------
182 -- Use of Node Lists --
183 -----------------------
185 -- With a few exceptions, if a construction of the form {non-terminal}
186 -- appears in the tree, lists are used in the corresponding tree node (see
187 -- package Nlists for handling of node lists). In this case a field of the
188 -- parent node points to a list of nodes for the non-terminal. The field
189 -- name for such fields has a plural name which always ends in "s". For
190 -- example, a case statement has a field Alternatives pointing to list of
191 -- case statement alternative nodes.
193 -- Only fields pointing to lists have names ending in "s", so generally the
194 -- structure is strongly typed, fields not ending in s point to single
195 -- nodes, and fields ending in s point to lists.
197 -- The following example shows how a traversal of a list is written. We
198 -- suppose here that Stmt points to a N_Case_Statement node which has a
199 -- list field called Alternatives:
201 -- Alt := First (Alternatives (Stmt));
202 -- while Present (Alt) loop
204 -- -- processing for case statement alternative Alt
206 -- Alt := Next (Alt);
209 -- The Present function tests for Empty, which in this case signals the end
210 -- of the list. First returns Empty immediately if the list is empty.
211 -- Present is defined in Atree, First and Next are defined in Nlists.
213 -- The exceptions to this rule occur with {DEFINING_IDENTIFIERS} in all
214 -- contexts, which is handled as described in the previous section, and
215 -- with {,library_unit_NAME} in the N_With_Clause mode, which is handled
216 -- using the First_Name and Last_Name flags, as further detailed in the
217 -- description of the N_With_Clause node.
223 -- Pragmas can appear in many different context, but are not included in
224 -- the grammar. Still they must appear in the tree, so they can be properly
227 -- Two approaches are used. In some cases, an extra field is defined in an
228 -- appropriate node that contains a list of pragmas appearing in the
229 -- expected context. For example pragmas can appear before an
230 -- Accept_Alternative in a Selective_Accept_Statement, and these pragmas
231 -- appear in the Pragmas_Before field of the N_Accept_Alternative node.
233 -- The other approach is to simply allow pragmas to appear in syntactic
234 -- lists where the grammar (of course) does not include the possibility.
235 -- For example, the Variants field of an N_Variant_Part node points to a
236 -- list that can contain both N_Pragma and N_Variant nodes.
238 -- To make processing easier in the latter case, the Nlists package
239 -- provides a set of routines (First_Non_Pragma, Last_Non_Pragma,
240 -- Next_Non_Pragma, Prev_Non_Pragma) that allow such lists to be handled
241 -- ignoring all pragmas.
243 -- In the case of the variants list, we can either write:
245 -- Variant := First (Variants (N));
246 -- while Present (Variant) loop
248 -- Variant := Next (Variant);
253 -- Variant := First_Non_Pragma (Variants (N));
254 -- while Present (Variant) loop
256 -- Variant := Next_Non_Pragma (Variant);
259 -- In the first form of the loop, Variant can either be an N_Pragma or an
260 -- N_Variant node. In the second form, Variant can only be N_Variant since
261 -- all pragmas are skipped.
263 ---------------------
264 -- Optional Fields --
265 ---------------------
267 -- Fields which correspond to a section of the syntax enclosed in square
268 -- brackets are generally omitted (and the corresponding field set to Empty
269 -- for a node, or No_List for a list). The documentation of such fields
270 -- notes these cases. One exception to this rule occurs in the case of
271 -- possibly empty statement sequences (such as the sequence of statements
272 -- in an entry call alternative). Such cases appear in the syntax rules as
273 -- [SEQUENCE_OF_STATEMENTS] and the fields corresponding to such optional
274 -- statement sequences always contain an empty list (not No_List) if no
275 -- statements are present.
277 -- Note: the utility program that constructs the body and spec of the Nmake
278 -- package relies on the format of the comments to determine if a field
279 -- should have a default value in the corresponding make routine. The rule
280 -- is that if the first line of the description of the field contains the
281 -- string "(set to xxx if", then a default value of xxx is provided for
282 -- this field in the corresponding Make_yyy routine.
284 -----------------------------------
285 -- Note on Body/Spec Terminology --
286 -----------------------------------
288 -- In informal discussions about Ada, it is customary to refer to package
289 -- and subprogram specs and bodies. However, this is not technically
290 -- correct, what is normally referred to as a spec or specification is in
291 -- fact a package declaration or subprogram declaration. We are careful in
292 -- GNAT to use the correct terminology and in particular, the full word
293 -- specification is never used as an incorrect substitute for declaration.
294 -- The structure and terminology used in the tree also reflects the grammar
295 -- and thus uses declaration and specification in the technically correct
298 -- However, there are contexts in which the informal terminology is useful.
299 -- We have the word "body" to refer to the Interp_Etype declared by the
300 -- declaration of a unit body, and in some contexts we need similar term to
301 -- refer to the entity declared by the package or subprogram declaration,
302 -- and simply using declaration can be confusing since the body also has a
305 -- An example of such a context is the link between the package body and
306 -- its declaration. With_Declaration is confusing, since the package body
307 -- itself is a declaration.
309 -- To deal with this problem, we reserve the informal term Spec, i.e. the
310 -- popular abbreviation used in this context, to refer to the entity
311 -- declared by the package or subprogram declaration. So in the above
312 -- example case, the field in the body is called With_Spec.
314 -- Another important context for the use of the word Spec is in error
315 -- messages, where a hyper-correct use of declaration would be confusing to
316 -- a typical Ada programmer, and even for an expert programmer can cause
317 -- confusion since the body has a declaration as well.
321 -- Declaration always refers to the syntactic entity that is called
322 -- a declaration. In particular, subprogram declaration
323 -- and package declaration are used to describe the
324 -- syntactic entity that includes the semicolon.
326 -- Specification always refers to the syntactic entity that is called
327 -- a specification. In particular, the terms procedure
328 -- specification, function specification, package
329 -- specification, subprogram specification always refer
330 -- to the syntactic entity that has no semicolon.
332 -- Spec is an informal term, used to refer to the entity
333 -- that is declared by a task declaration, protected
334 -- declaration, generic declaration, subprogram
335 -- declaration or package declaration.
337 -- This convention is followed throughout the GNAT documentation
338 -- both internal and external, and in all error message text.
340 ------------------------
341 -- Internal Use Nodes --
342 ------------------------
344 -- These are Node_Kind settings used in the internal implementation which
345 -- are not logically part of the specification.
348 -- Completely unused entry at the start of the enumeration type. This
349 -- is inserted so that no legitimate value is zero, which helps to get
350 -- better debugging behavior, since zero is a likely uninitialized value).
353 -- Completely unused entry at the end of the enumeration type. This is
354 -- handy so that arrays with Node_Kind as the index type have an extra
355 -- entry at the end (see for example the use of the Pchar_Pos_Array in
356 -- Treepr, where the extra entry provides the limit value when dealing with
357 -- the last used entry in the array).
359 -----------------------------------------
360 -- Note on the settings of Sloc fields --
361 -----------------------------------------
363 -- The Sloc field of nodes that come from the source is set by the parser.
364 -- For internal nodes, and nodes generated during expansion the Sloc is
365 -- usually set in the call to the constructor for the node. In general the
366 -- Sloc value chosen for an internal node is the Sloc of the source node
367 -- whose processing is responsible for the expansion. For example, the Sloc
368 -- of an inherited primitive operation is the Sloc of the corresponding
369 -- derived type declaration.
371 -- For the nodes of a generic instantiation, the Sloc value is encoded to
372 -- represent both the original Sloc in the generic unit, and the Sloc of
373 -- the instantiation itself. See Sinput.ads for details.
375 -- Subprogram instances create two callable entities: one is the visible
376 -- subprogram instance, and the other is an anonymous subprogram nested
377 -- within a wrapper package that contains the renamings for the actuals.
378 -- Both of these entities have the Sloc of the defining entity in the
379 -- instantiation node. This simplifies some ASIS queries.
381 -----------------------
382 -- Field Definitions --
383 -----------------------
385 -- In the following node definitions, all fields, both syntactic and
386 -- semantic, are documented. The one exception is in the case of entities
387 -- (defining indentifiers, character literals and operator symbols), where
388 -- the usage of the fields depends on the entity kind. Entity fields are
389 -- fully documented in the separate package Einfo.
391 -- In the node definitions, three common sets of fields are abbreviated to
392 -- save both space in the documentation, and also space in the string
393 -- (defined in Tree_Print_Strings) used to print trees. The following
394 -- abbreviations are used:
396 -- Note: the utility program that creates the Treeprs spec (in the file
397 -- xtreeprs.adb) knows about the special fields here, so it must be
398 -- modified if any change is made to these fields.
400 -- "plus fields for binary operator"
401 -- Chars (Name1) Name_Id for the operator
402 -- Left_Opnd (Node2) left operand expression
403 -- Right_Opnd (Node3) right operand expression
404 -- Entity (Node4-Sem) defining entity for operator
405 -- Associated_Node (Node4-Sem) for generic processing
406 -- Do_Overflow_Check (Flag17-Sem) set if overflow check needed
407 -- Has_Private_View (Flag11-Sem) set in generic units.
409 -- "plus fields for unary operator"
410 -- Chars (Name1) Name_Id for the operator
411 -- Right_Opnd (Node3) right operand expression
412 -- Entity (Node4-Sem) defining entity for operator
413 -- Associated_Node (Node4-Sem) for generic processing
414 -- Do_Overflow_Check (Flag17-Sem) set if overflow check needed
415 -- Has_Private_View (Flag11-Sem) set in generic units.
417 -- "plus fields for expression"
418 -- Paren_Count number of parentheses levels
419 -- Etype (Node5-Sem) type of the expression
420 -- Is_Overloaded (Flag5-Sem) >1 type interpretation exists
421 -- Is_Static_Expression (Flag6-Sem) set for static expression
422 -- Raises_Constraint_Error (Flag7-Sem) evaluation raises CE
423 -- Must_Not_Freeze (Flag8-Sem) set if must not freeze
424 -- Do_Range_Check (Flag9-Sem) set if a range check needed
425 -- Assignment_OK (Flag15-Sem) set if modification is OK
426 -- Is_Controlling_Actual (Flag16-Sem) set for controlling argument
428 -- Note: see under (EXPRESSION) for further details on the use of
429 -- the Paren_Count field to record the number of parentheses levels.
431 -- Node_Kind is the type used in the Nkind field to indicate the node kind.
432 -- The actual definition of this type is given later (the reason for this
433 -- is that we want the descriptions ordered by logical chapter in the RM,
434 -- but the type definition is reordered to facilitate the definition of
435 -- some subtype ranges. The individual descriptions of the nodes show how
436 -- the various fields are used in each node kind, as well as providing
437 -- logical names for the fields. Functions and procedures are provided for
438 -- accessing and setting these fields using these logical names.
440 -----------------------
441 -- Gigi Restrictions --
442 -----------------------
444 -- The tree passed to Gigi is more restricted than the general tree form.
445 -- For example, as a result of expansion, most of the tasking nodes can
446 -- never appear. For each node to which either a complete or partial
447 -- restriction applies, a note entitled "Gigi restriction" appears which
448 -- documents the restriction.
450 -- Note that most of these restrictions apply only to trees generated when
451 -- code is being generated, since they involved expander actions that
454 ------------------------
455 -- Common Flag Fields --
456 ------------------------
458 -- The following flag fields appear in all nodes
461 -- This flag is used to indicate that a node (and all its children have
462 -- been analyzed. It is used to avoid reanalysis of a node that has
463 -- already been analyzed, both for efficiency and functional correctness
466 -- Comes_From_Source (Flag2)
467 -- This flag is on for any nodes built by the scanner or parser from the
468 -- source program, and off for any nodes built by the analyzer or
469 -- expander. It indicates that a node comes from the original source.
470 -- This flag is defined in Atree.
472 -- Error_Posted (Flag3)
473 -- This flag is used to avoid multiple error messages being posted on or
474 -- referring to the same node. This flag is set if an error message
475 -- refers to a node or is posted on its source location, and has the
476 -- effect of inhibiting further messages involving this same node.
478 -- Local_Raise_Statements (Elist1)
479 -- This field is present in exception handler nodes. It is set to
480 -- No_Elist in the normal case. If there is at least one raise statement
481 -- which can potentially be handled as a local raise, then this field
482 -- points to a list of raise nodes, which are calls to a routine to raise
483 -- an exception. These are raise nodes which can be optimized into gotos
484 -- if the handler turns out to meet the conditions which permit this
485 -- transformation. Note that this does NOT include instances of the
486 -- N_Raise_xxx_Error nodes since the transformation of these nodes is
487 -- handled by the back end (using the N_Push/N_Pop mechanism).
489 -- Has_Dynamic_Length_Check (Flag10-Sem)
490 -- This flag is present on all nodes. It is set to indicate that one of
491 -- the routines in unit Checks has generated a length check action which
492 -- has been inserted at the flagged node. This is used to avoid the
493 -- generation of duplicate checks.
495 -- Has_Dynamic_Range_Check (Flag12-Sem)
496 -- This flag is present on all nodes. It is set to indicate that one of
497 -- the routines in unit Checks has generated a range check action which
498 -- has been inserted at the flagged node. This is used to avoid the
499 -- generation of duplicate checks.
501 -- Has_Local_Raise (Flag8-Sem)
502 -- Present in exception handler nodes. Set if the handler can be entered
503 -- via a local raise that gets transformed to a goto statement. This will
504 -- always be set if Local_Raise_Statements is non-empty, but can also be
505 -- set as a result of generation of N_Raise_xxx nodes, or flags set in
506 -- nodes requiring generation of back end checks.
508 ------------------------------------
509 -- Description of Semantic Fields --
510 ------------------------------------
512 -- The meaning of the syntactic fields is generally clear from their names
513 -- without any further description, since the names are chosen to
514 -- correspond very closely to the syntax in the reference manual. This
515 -- section describes the usage of the semantic fields, which are used to
516 -- contain additional information determined during semantic analysis.
518 -- ABE_Is_Certain (Flag18-Sem)
519 -- This flag is set in an instantiation node or a call node is determined
520 -- to be sure to raise an ABE. This is used to trigger special handling
521 -- of such cases, particularly in the instantiation case where we avoid
522 -- instantiating the body if this flag is set. This flag is also present
523 -- in an N_Formal_Package_Declaration_Node since formal package
524 -- declarations are treated like instantiations, but it is always set to
525 -- False in this context.
527 -- Accept_Handler_Records (List5-Sem)
528 -- This field is present only in an N_Accept_Alternative node. It is used
529 -- to temporarily hold the exception handler records from an accept
530 -- statement in a selective accept. These exception handlers will
531 -- eventually be placed in the Handler_Records list of the procedure
532 -- built for this accept (see Expand_N_Selective_Accept procedure in
533 -- Exp_Ch9 for further details).
535 -- Access_Types_To_Process (Elist2-Sem)
536 -- Present in N_Freeze_Entity nodes for Incomplete or private types.
537 -- Contains the list of access types which may require specific treatment
538 -- when the nature of the type completion is completely known. An example
539 -- of such treatement is the generation of the associated_final_chain.
541 -- Actions (List1-Sem)
542 -- This field contains a sequence of actions that are associated with the
543 -- node holding the field. See the individual node types for details of
544 -- how this field is used, as well as the description of the specific use
545 -- for a particular node type.
547 -- Activation_Chain_Entity (Node3-Sem)
548 -- This is used in tree nodes representing task activators (blocks,
549 -- subprogram bodies, package declarations, and task bodies). It is
550 -- initially Empty, and then gets set to point to the entity for the
551 -- declared Activation_Chain variable when the first task is declared.
552 -- When tasks are declared in the corresponding declarative region this
553 -- entity is located by name (its name is always _Chain) and the declared
554 -- tasks are added to the chain. Note that N_Extended_Return_Statement
555 -- does not have this attribute, although it does have an activation
556 -- chain. This chain is used to store the tasks temporarily, and is not
557 -- used for activating them. On successful completion of the return
558 -- statement, the tasks are moved to the caller's chain, and the caller
561 -- Acts_As_Spec (Flag4-Sem)
562 -- A flag set in the N_Subprogram_Body node for a subprogram body which
563 -- is acting as its own spec. This flag also appears in the compilation
564 -- unit node at the library level for such a subprogram (see further
565 -- description in spec of Lib package).
567 -- Actual_Designated_Subtype (Node4-Sem)
568 -- Present in N_Free_Statement and N_Explicit_Dereference nodes. If gigi
569 -- needs to known the dynamic constrained subtype of the designated
570 -- object, this attribute is set to that type. This is done for
571 -- N_Free_Statements for access-to-classwide types and access to
572 -- unconstrained packed array types, and for N_Explicit_Dereference when
573 -- the designated type is an unconstrained packed array and the
574 -- dereference is the prefix of a 'Size attribute reference.
576 -- Aggregate_Bounds (Node3-Sem)
577 -- Present in array N_Aggregate nodes. If the aggregate contains
578 -- component associations this field points to an N_Range node whose
579 -- bounds give the lowest and highest discrete choice values. If the
580 -- named aggregate contains a dynamic or null choice this field is empty.
581 -- If the aggregate contains positional elements this field points to an
582 -- N_Integer_Literal node giving the number of positional elements. Note
583 -- that if the aggregate contains positional elements and an other choice
584 -- the N_Integer_Literal only accounts for the number of positional
587 -- All_Others (Flag11-Sem)
588 -- Present in an N_Others_Choice node. This flag is set in the case of an
589 -- others exception where all exceptions are to be caught, even those
590 -- that are not normally handled (in particular the tasking abort
591 -- signal). This is used for translation of the at end handler into a
592 -- normal exception handler.
594 -- Assignment_OK (Flag15-Sem)
595 -- This flag is set in a subexpression node for an object, indicating
596 -- that the associated object can be modified, even if this would not
597 -- normally be permissible (either by direct assignment, or by being
598 -- passed as an out or in-out parameter). This is used by the expander
599 -- for a number of purposes, including initialzation of constants and
600 -- limited type objects (such as tasks), setting discriminant fields,
601 -- setting tag values, etc. N_Object_Declaration nodes also have this
602 -- flag defined. Here it is used to indicate that an initialization
603 -- expression is valid, even where it would normally not be allowed (e.g.
604 -- where the type involved is limited).
606 -- Associated_Node (Node4-Sem)
607 -- Present in nodes that can denote an entity: identifiers, character
608 -- literals, operator symbols, expanded names, operator nodes, and
609 -- attribute reference nodes (all these nodes have an Entity field). This
610 -- field is also present in N_Aggregate, N_Selected_Component, and
611 -- N_Extension_Aggregate nodes. This field is used in generic processing
612 -- to create links between the generic template and the generic copy. See
613 -- Sem_Ch12.Get_Associated_Node for full details. Note that this field
614 -- overlaps Entity, which is fine, since, as explained in Sem_Ch12, the
615 -- normal function of Entity is not required at the point where the
616 -- Associated_Node is set. Note also, that in generic templates, this
617 -- means that the Entity field does not necessarily point to an Entity.
618 -- Since the back end is expected to ignore generic templates, this is
621 -- At_End_Proc (Node1)
622 -- This field is present in an N_Handled_Sequence_Of_Statements node. It
623 -- contains an identifier reference for the cleanup procedure to be
624 -- called. See description of this node for further details.
626 -- Backwards_OK (Flag6-Sem)
627 -- A flag present in the N_Assignment_Statement node. It is used only if
628 -- the type being assigned is an array type, and is set if analysis
629 -- determines that it is definitely safe to do the copy backwards, i.e.
630 -- starting at the highest addressed element. Note that if neither of the
631 -- flags Forwards_OK or Backwards_OK is set, it means that the front end
632 -- could not determine that either direction is definitely safe, and a
633 -- runtime check is required.
635 -- Body_To_Inline (Node3-Sem)
636 -- present in subprogram declarations. Denotes analyzed but unexpanded
637 -- body of subprogram, to be used when inlining calls. Present when the
638 -- subprogram has an Inline pragma and inlining is enabled. If the
639 -- declaration is completed by a renaming_as_body, and the renamed en-
640 -- tity is a subprogram, the Body_To_Inline is the name of that entity,
641 -- which is used directly in later calls to the original subprogram.
643 -- Body_Required (Flag13-Sem)
644 -- A flag that appears in the N_Compilation_Unit node indicating that the
645 -- corresponding unit requires a body. For the package case, this
646 -- indicates that a completion is required. In Ada 95, if the flag is not
647 -- set for the package case, then a body may not be present. In Ada 83,
648 -- if the flag is not set for the package case, then body is optional.
649 -- For a subprogram declaration, the flag is set except in the case where
650 -- a pragma Import or Interface applies, in which case no body is
651 -- permitted (in Ada 83 or Ada 95).
653 -- By_Ref (Flag5-Sem)
654 -- A flag present in N_Return_Statement and
655 -- N_Extended_Return_Statement.
656 -- It is set when the returned expression is already allocated on the
657 -- secondary stack and thus the result is passed by reference rather
658 -- than copied another time.
660 -- Check_Address_Alignment (Flag11-Sem)
661 -- A flag present in N_Attribute_Definition clause for a 'Address
662 -- attribute definition. This flag is set if a dynamic check should be
663 -- generated at the freeze point for the entity to which this address
664 -- clause applies. The reason that we need this flag is that we want to
665 -- check for range checks being suppressed at the point where the
666 -- attribute definition clause is given, rather than testing this at the
669 -- Coextensions (Elist4-Sem)
670 -- Present in allocators nodes. Points to list of allocators for the
671 -- access discriminants of the allocated object.
673 -- Comes_From_Extended_Return_Statement (Flag18-Sem)
674 -- Present in N_Return_Statement nodes. True if this node was
675 -- constructed as part of the expansion of an
676 -- N_Extended_Return_Statement.
678 -- Compile_Time_Known_Aggregate (Flag18-Sem)
679 -- Present in N_Aggregate nodes. Set for aggregates which can be fully
680 -- evaluated at compile time without raising constraint error. Such
681 -- aggregates can be passed as is to Gigi without any expansion. See
682 -- Sem_Aggr for the specific conditions under which an aggregate has this
683 -- flag set. See also the flag Static_Processing_OK.
685 -- Condition_Actions (List3-Sem)
686 -- This field appears in else-if nodes and in the iteration scheme node
687 -- for while loops. This field is only used during semantic processing to
688 -- temporarily hold actions inserted into the tree. In the tree passed to
689 -- gigi, the condition actions field is always set to No_List. For
690 -- details on how this field is used, see the routine Insert_Actions in
691 -- package Exp_Util, and also the expansion routines for the relevant
694 -- Controlling_Argument (Node1-Sem)
695 -- This field is set in procedure and function call nodes if the call is
696 -- a dispatching call (it is Empty for a non-dispatching call). It
697 -- indicates the source of the call's controlling tag. For procedure
698 -- calls, the Controlling_Argument is one of the actuals. For function
699 -- that has a dispatching result, it is an entity in the context of the
700 -- call that can provide a tag, or else it is the tag of the root type of
701 -- the class. It can also specify a tag directly rather than being a
702 -- tagged object. The latter is needed by the implementations of AI-239
705 -- Conversion_OK (Flag14-Sem)
706 -- A flag set on type conversion nodes to indicate that the conversion is
707 -- to be considered as being valid, even though it is the case that the
708 -- conversion is not valid Ada. This is used for Enum_Rep, Fixed_Value
709 -- and Integer_Value attributes, for internal conversions done for
710 -- fixed-point operations, and for certain conversions for calls to
711 -- initialization procedures. If Conversion_OK is set, then Etype must be
712 -- set (the analyzer assumes that Etype has been set). For the case of
713 -- fixed-point operands, it also indicates that the conversion is to be
714 -- direct conversion of the underlying integer result, with no regard to
715 -- the small operand.
717 -- Corresponding_Body (Node5-Sem)
718 -- This field is set in subprogram declarations, package declarations,
719 -- entry declarations of protected types, and in generic units. It
720 -- points to the defining entity for the corresponding body (NOT the
721 -- node for the body itself).
723 -- Corresponding_Formal_Spec (Node3-Sem)
724 -- This field is set in subprogram renaming declarations, where it points
725 -- to the defining entity for a formal subprogram in the case where the
726 -- renaming corresponds to a generic formal subprogram association in an
727 -- instantiation. The field is Empty if the renaming does not correspond
728 -- to such a formal association.
730 -- Corresponding_Generic_Association (Node5-Sem)
731 -- This field is defined for object declarations and object renaming
732 -- declarations. It is set for the declarations within an instance that
733 -- map generic formals to their actuals. If set, the field points to
734 -- a generic_association which is the original parent of the expression
735 -- or name appearing in the declaration. This simplifies ASIS queries.
737 -- Corresponding_Integer_Value (Uint4-Sem)
738 -- This field is set in real literals of fixed-point types (it is not
739 -- used for floating-point types). It contains the integer value used
740 -- to represent the fixed-point value. It is also set on the universal
741 -- real literals used to represent bounds of fixed-point base types
742 -- and their first named subtypes.
744 -- Corresponding_Spec (Node5-Sem)
745 -- This field is set in subprogram, package, task, and protected body
746 -- nodes, where it points to the defining entity in the corresponding
747 -- spec. The attribute is also set in N_With_Clause nodes, where it
748 -- points to the defining entity for the with'ed spec, and in a
749 -- subprogram renaming declaration when it is a Renaming_As_Body. The
750 -- field is Empty if there is no corresponding spec, as in the case of a
751 -- subprogram body that serves as its own spec.
753 -- Corresponding_Stub (Node3-Sem)
754 -- This field is present in an N_Subunit node. It holds the node in
755 -- the parent unit that is the stub declaration for the subunit. it is
756 -- set when analysis of the stub forces loading of the proper body. If
757 -- expansion of the proper body creates new declarative nodes, they are
758 -- inserted at the point of the corresponding_stub.
760 -- Dcheck_Function (Node5-Sem)
761 -- This field is present in an N_Variant node, It references the entity
762 -- for the discriminant checking function for the variant.
764 -- Debug_Statement (Node3)
765 -- This field is present in an N_Pragma node. It is used only for a Debug
766 -- pragma. The parameter is of the form of an expression, as required by
767 -- the pragma syntax, but is actually a procedure call. To simplify
768 -- semantic processing, the parser creates a copy of the argument
769 -- rearranged into a procedure call statement and places it in the
770 -- Debug_Statement field. Note that this field is considered syntactic
771 -- field, since it is created by the parser.
773 -- Default_Expression (Node5-Sem)
774 -- This field is Empty if there is no default expression. If there is a
775 -- simple default expression (one with no side effects), then this field
776 -- simply contains a copy of the Expression field (both point to the tree
777 -- for the default expression). Default_Expression is used for
778 -- conformance checking.
780 -- Discr_Check_Funcs_Built (Flag11-Sem)
781 -- This flag is present in N_Full_Type_Declaration nodes. It is set when
782 -- discriminant checking functions are constructed. The purpose is to
783 -- avoid attempting to set these functions more than once.
785 -- Do_Accessibility_Check (Flag13-Sem)
786 -- This flag is set on N_Parameter_Specification nodes to indicate
787 -- that an accessibility check is required for the parameter. It is
788 -- not yet decided who takes care of this check (TBD ???).
790 -- Do_Discriminant_Check (Flag13-Sem)
791 -- This flag is set on N_Selected_Component nodes to indicate that a
792 -- discriminant check is required using the discriminant check routine
793 -- associated with the selector. The actual check is generated by the
794 -- expander when processing selected components.
796 -- Do_Division_Check (Flag13-Sem)
797 -- This flag is set on a division operator (/ mod rem) to indicate
798 -- that a zero divide check is required. The actual check is dealt
799 -- with by the backend (all the front end does is to set the flag).
801 -- Do_Length_Check (Flag4-Sem)
802 -- This flag is set in an N_Assignment_Statement, N_Op_And, N_Op_Or,
803 -- N_Op_Xor, or N_Type_Conversion node to indicate that a length check
804 -- is required. It is not determined who deals with this flag (???).
806 -- Do_Overflow_Check (Flag17-Sem)
807 -- This flag is set on an operator where an overflow check is required on
808 -- the operation. The actual check is dealt with by the backend (all the
809 -- front end does is to set the flag). The other cases where this flag is
810 -- used is on a Type_Conversion node and for attribute reference nodes.
811 -- For a type conversion, it means that the conversion is from one base
812 -- type to another, and the value may not fit in the target base type.
813 -- See also the description of Do_Range_Check for this case. The only
814 -- attribute references which use this flag are Pred and Succ, where it
815 -- means that the result should be checked for going outside the base
818 -- Do_Range_Check (Flag9-Sem)
819 -- This flag is set on an expression which appears in a context where
820 -- a range check is required. The target type is clear from the
821 -- context. The contexts in which this flag can appear are limited to
824 -- Right side of an assignment. In this case the target type is
825 -- taken from the left side of the assignment, which is referenced
826 -- by the Name of the N_Assignment_Statement node.
828 -- Subscript expressions in an indexed component. In this case the
829 -- target type is determined from the type of the array, which is
830 -- referenced by the Prefix of the N_Indexed_Component node.
832 -- Argument expression for a parameter, appearing either directly in
833 -- the Parameter_Associations list of a call or as the Expression of an
834 -- N_Parameter_Association node that appears in this list. In either
835 -- case, the check is against the type of the formal. Note that the
836 -- flag is relevant only in IN and IN OUT parameters, and will be
837 -- ignored for OUT parameters, where no check is required in the call,
838 -- and if a check is required on the return, it is generated explicitly
839 -- with a type conversion.
841 -- Initialization expression for the initial value in an object
842 -- declaration. In this case the Do_Range_Check flag is set on
843 -- the initialization expression, and the check is against the
844 -- range of the type of the object being declared.
846 -- The expression of a type conversion. In this case the range check is
847 -- against the target type of the conversion. See also the use of
848 -- Do_Overflow_Check on a type conversion. The distinction is that the
849 -- overflow check protects against a value that is outside the range of
850 -- the target base type, whereas a range check checks that the
851 -- resulting value (which is a value of the base type of the target
852 -- type), satisfies the range constraint of the target type.
854 -- Note: when a range check is required in contexts other than those
855 -- listed above (e.g. in a return statement), an additional type
856 -- conversion node is introduced to represent the required check.
858 -- Do_Storage_Check (Flag17-Sem)
859 -- This flag is set in an N_Allocator node to indicate that a storage
860 -- check is required for the allocation, or in an N_Subprogram_Body node
861 -- to indicate that a stack check is required in the subprogram prolog.
862 -- The N_Allocator case is handled by the routine that expands the call
863 -- to the runtime routine. The N_Subprogram_Body case is handled by the
864 -- backend, and all the semantics does is set the flag.
866 -- Do_Tag_Check (Flag13-Sem)
867 -- This flag is set on an N_Assignment_Statement, N_Function_Call,
868 -- N_Procedure_Call_Statement, N_Type_Conversion,
869 -- N_Return_Statement, or N_Extended_Return_Statement
870 -- node to indicate that the tag check can be suppressed. It is not
871 -- yet decided how this flag is used (TBD ???).
873 -- Elaborate_Present (Flag4-Sem)
874 -- This flag is set in the N_With_Clause node to indicate that pragma
875 -- Elaborate pragma appears for the with'ed units.
877 -- Elaborate_All_Desirable (Flag9-Sem)
878 -- This flag is set in the N_With_Clause mode to indicate that the static
879 -- elaboration processing has determined that an Elaborate_All pragma is
880 -- desirable for correct elaboration for this unit.
882 -- Elaborate_All_Present (Flag14-Sem)
883 -- This flag is set in the N_With_Clause node to indicate that a
884 -- pragma Elaborate_All pragma appears for the with'ed units.
886 -- Elaborate_Desirable (Flag11-Sem)
887 -- This flag is set in the N_With_Clause mode to indicate that the static
888 -- elaboration processing has determined that an Elaborate pragma is
889 -- desirable for correct elaboration for this unit.
891 -- Elaboration_Boolean (Node2-Sem)
892 -- This field is present in function and procedure specification
893 -- nodes. If set, it points to the entity for a Boolean flag that
894 -- must be tested for certain calls to check for access before
895 -- elaboration. See body of Sem_Elab for further details. This
896 -- field is Empty if no elaboration boolean is required.
898 -- Else_Actions (List3-Sem)
899 -- This field is present in conditional expression nodes. During code
900 -- expansion we use the Insert_Actions procedure (in Exp_Util) to insert
901 -- actions at an appropriate place in the tree to get elaborated at the
902 -- right time. For conditional expressions, we have to be sure that the
903 -- actions for the Else branch are only elaborated if the condition is
904 -- False. The Else_Actions field is used as a temporary parking place for
905 -- these actions. The final tree is always rewritten to eliminate the
906 -- need for this field, so in the tree passed to Gigi, this field is
907 -- always set to No_List.
909 -- Enclosing_Variant (Node2-Sem)
910 -- This field is present in the N_Variant node and identifies the
911 -- Node_Id corresponding to the immediately enclosing variant when
912 -- the variant is nested, and N_Empty otherwise. Set during semantic
913 -- processing of the variant part of a record type.
915 -- Entity (Node4-Sem)
916 -- Appears in all direct names (identifier, character literal, operator
917 -- symbol), as well as expanded names, and attributes that denote
918 -- entities, such as 'Class. Points to the entity for the corresponding
919 -- defining occurrence. Set after name resolution. In the case of
920 -- identifiers in a WITH list, the corresponding defining occurrence is
921 -- in a separately compiled file, and this pointer must be set using the
922 -- library Load procedure. Note that during name resolution, the value in
923 -- Entity may be temporarily incorrect (e.g. during overload resolution,
924 -- Entity is initially set to the first possible correct interpretation,
925 -- and then later modified if necessary to contain the correct value
926 -- after resolution). Note that this field overlaps Associated_Node,
927 -- which is used during generic processing (see Sem_Ch12 for details).
928 -- Note also that in generic templates, this means that the Entity field
929 -- does not always point to an Entity. Since the back end is expected to
930 -- ignore generic templates, this is harmless. Note that this field also
931 -- appears in N_Attribute_Definition_Clause nodes. It is used only for
932 -- stream attributes definition clauses. In this case, it denotes a
933 -- (possibly dummy) subprogram entity that is conceptually declared at
934 -- the point of the clause. Thus the visibility of the attribute
935 -- definition clause (in the sense of 8.3(23) as amended by AI-195) can
936 -- be checked by testing the visibility of that subprogram.
938 -- Entity_Or_Associated_Node (Node4-Sem)
939 -- A synonym for both Entity and Associated_Node. Used by convention in
940 -- the code when referencing this field in cases where it is not known
941 -- whether the field contains an Entity or an Associated_Node.
944 -- Appears in all expression nodes, all direct names, and all entities.
945 -- Points to the entity for the related type. Set after type resolution.
946 -- Normally this is the actual subtype of the expression. However, in
947 -- certain contexts such as the right side of an assignment, subscripts,
948 -- arguments to calls, returned value in a function, initial value etc.
949 -- it is the desired target type. In the event that this is different
950 -- from the actual type, the Do_Range_Check flag will be set if a range
951 -- check is required. Note: if the Is_Overloaded flag is set, then Etype
952 -- points to an essentially arbitrary choice from the possible set of
955 -- Exception_Junk (Flag8-Sem)
956 -- This flag is set in a various nodes appearing in a statement sequence
957 -- to indicate that the corresponding node is an artifact of the
958 -- generated code for exception handling, and should be ignored when
959 -- analyzing the control flow of the relevant sequence of statements
960 -- (e.g. to check that it does not end with a bad return statement).
962 -- Exception_Label (Node5-Sem)
963 -- Appears in N_Push_xxx_Label nodes. Points to the entity of the label
964 -- to be used for transforming the corresponding exception into a goto,
965 -- or contains Empty, if this exception is not to be transformed. Also
966 -- appears in N_Exception_Handler nodes, where, if set, it indicates
967 -- that there may be a local raise for the handler, so that expansion
968 -- to allow a goto is required (and this field contains the label for
969 -- this goto). See Exp_Ch11.Expand_Local_Exception_Handlers for details.
971 -- Expansion_Delayed (Flag11-Sem)
972 -- Set on aggregates and extension aggregates that need a top-down rather
973 -- than bottom up expansion. Typically aggregate expansion happens bottom
974 -- up. For nested aggregates the expansion is delayed until the enclosing
975 -- aggregate itself is expanded, e.g. in the context of a declaration. To
976 -- delay it we set this flag. This is done to avoid creating a temporary
977 -- for each level of a nested aggregates, and also to prevent the
978 -- premature generation of constraint checks. This is also a requirement
979 -- if we want to generate the proper attachment to the internal
980 -- finalization lists (for record with controlled components). Top down
981 -- expansion of aggregates is also used for in-place array aggregate
982 -- assignment or initialization. When the full context is known, the
983 -- target of the assignment or initialization is used to generate the
984 -- left-hand side of individual assignment to each sub-component.
986 -- First_Inlined_Subprogram (Node3-Sem)
987 -- Present in the N_Compilation_Unit node for the main program. Points to
988 -- a chain of entities for subprograms that are to be inlined. The
989 -- Next_Inlined_Subprogram field of these entities is used as a link
990 -- pointer with Empty marking the end of the list. This field is Empty if
991 -- there are no inlined subprograms or inlining is not active.
993 -- First_Named_Actual (Node4-Sem)
994 -- Present in procedure call statement and function call nodes, and also
995 -- in Intrinsic nodes. Set during semantic analysis to point to the first
996 -- named parameter where parameters are ordered by declaration order (as
997 -- opposed to the actual order in the call which may be different due to
998 -- named associations). Note: this field points to the explicit actual
999 -- parameter itself, not the N_Parameter_Association node (its parent).
1001 -- First_Real_Statement (Node2-Sem)
1002 -- Present in N_Handled_Sequence_Of_Statements node. Normally set to
1003 -- Empty. Used only when declarations are moved into the statement part
1004 -- of a construct as a result of wrapping an AT END handler that is
1005 -- required to cover the declarations. In this case, this field is used
1006 -- to remember the location in the statements list of the first real
1007 -- statement, i.e. the statement that used to be first in the statement
1008 -- list before the declarations were prepended.
1010 -- First_Subtype_Link (Node5-Sem)
1011 -- Present in N_Freeze_Entity node for an anonymous base type that is
1012 -- implicitly created by the declaration of a first subtype. It points to
1013 -- the entity for the first subtype.
1015 -- Float_Truncate (Flag11-Sem)
1016 -- A flag present in type conversion nodes. This is used for float to
1017 -- integer conversions where truncation is required rather than rounding.
1018 -- Note that Gigi does not handle type conversions from real to integer
1019 -- with rounding (see Expand_N_Type_Conversion).
1021 -- Forwards_OK (Flag5-Sem)
1022 -- A flag present in the N_Assignment_Statement node. It is used only if
1023 -- the type being assigned is an array type, and is set if analysis
1024 -- determines that it is definitely safe to do the copy forwards, i.e.
1025 -- starting at the lowest addressed element. Note that if neither of the
1026 -- flags Forwards_OK or Backwards_OK is set, it means that the front end
1027 -- could not determine that either direction is definitely safe, and a
1028 -- runtime check is required.
1030 -- From_At_Mod (Flag4-Sem)
1031 -- This flag is set on the attribute definition clause node that is
1032 -- generated by a transformation of an at mod phrase in a record
1033 -- representation clause. This is used to give slightly different (Ada 83
1034 -- compatible) semantics to such a clause, namely it is used to specify a
1035 -- minimum acceptable alignment for the base type and all subtypes. In
1036 -- Ada 95 terms, the actual alignment of the base type and all subtypes
1037 -- must be a multiple of the given value, and the representation clause
1038 -- is considered to be type specific instead of subtype specific.
1040 -- From_Default (Flag6-Sem)
1041 -- This flag is set on the subprogram renaming declaration created in an
1042 -- instance for a formal subprogram, when the formal is declared with a
1043 -- box, and there is no explicit actual. If the flag is present, the
1044 -- declaration is treated as an implicit reference to the formal in the
1047 -- Generic_Parent (Node5-Sem)
1048 -- Generic_Parent is defined on declaration nodes that are instances. The
1049 -- value of Generic_Parent is the generic entity from which the instance
1050 -- is obtained. Generic_Parent is also defined for the renaming
1051 -- declarations and object declarations created for the actuals in an
1052 -- instantiation. The generic parent of such a declaration is the
1053 -- corresponding generic association in the Instantiation node.
1055 -- Generic_Parent_Type (Node4-Sem)
1056 -- Generic_Parent_Type is defined on Subtype_Declaration nodes for the
1057 -- actuals of formal private and derived types. Within the instance, the
1058 -- operations on the actual are those inherited from the parent. For a
1059 -- formal private type, the parent type is the generic type itself. The
1060 -- Generic_Parent_Type is also used in an instance to determine whether a
1061 -- private operation overrides an inherited one.
1063 -- Handler_List_Entry (Node2-Sem)
1064 -- This field is present in N_Object_Declaration nodes. It is set only
1065 -- for the Handler_Record entry generated for an exception in zero cost
1066 -- exception handling mode. It references the corresponding item in the
1067 -- handler list, and is used to delete this entry if the corresponding
1068 -- handler is deleted during optimization. For further details on why
1069 -- this is required, see Exp_Ch11.Remove_Handler_Entries.
1071 -- Has_No_Elaboration_Code (Flag17-Sem)
1072 -- A flag that appears in the N_Compilation_Unit node to indicate whether
1073 -- or not elaboration code is present for this unit. It is initially set
1074 -- true for subprogram specs and bodies and for all generic units and
1075 -- false for non-generic package specs and bodies. Gigi may set the flag
1076 -- in the non-generic package case if it determines that no elaboration
1077 -- code is generated. Note that this flag is not related to the
1078 -- Is_Preelaborated status, there can be preelaborated packages that
1079 -- generate elaboration code, and non- preelaborated packages which do
1080 -- not generate elaboration code.
1082 -- Has_Priority_Pragma (Flag6-Sem)
1083 -- A flag present in N_Subprogram_Body, N_Task_Definition and
1084 -- N_Protected_Definition nodes to flag the presence of either a Priority
1085 -- or Interrupt_Priority pragma in the declaration sequence (public or
1086 -- private in the task and protected cases)
1088 -- Has_Private_View (Flag11-Sem)
1089 -- A flag present in generic nodes that have an entity, to indicate that
1090 -- the node has a private type. Used to exchange private and full
1091 -- declarations if the visibility at instantiation is different from the
1092 -- visibility at generic definition.
1094 -- Has_Self_Reference (Flag13-Sem)
1095 -- Present in N_Aggregate and N_Extension_Aggregate. Indicates that one
1096 -- of the expressions contains an access attribute reference to the
1097 -- enclosing type. Such a self-reference can only appear in default-
1098 -- initialized aggregate for a record type.
1100 -- Has_Storage_Size_Pragma (Flag5-Sem)
1101 -- A flag present in an N_Task_Definition node to flag the presence of a
1102 -- Storage_Size pragma.
1104 -- Has_Task_Info_Pragma (Flag7-Sem)
1105 -- A flag present in an N_Task_Definition node to flag the presence of a
1106 -- Task_Info pragma. Used to detect duplicate pragmas.
1108 -- Has_Task_Name_Pragma (Flag8-Sem)
1109 -- A flag present in N_Task_Definition nodes to flag the presence of a
1110 -- Task_Name pragma in the declaration sequence for the task.
1112 -- Has_Wide_Character (Flag11-Sem)
1113 -- Present in string literals, set if any wide character (i.e. character
1114 -- code outside the Character range) appears in the string.
1116 -- Hidden_By_Use_Clause (Elist4-Sem)
1117 -- An entity list present in use clauses that appear within
1118 -- instantiations. For the resolution of local entities, entities
1119 -- introduced by these use clauses have priority over global ones, and
1120 -- outer entities must be explicitly hidden/restored on exit.
1122 -- Implicit_With (Flag16-Sem)
1123 -- This flag is set in the N_With_Clause node that is implicitly
1124 -- generated for runtime units that are loaded by the expander, and also
1125 -- for package System, if it is loaded implicitly by a use of the
1126 -- 'Address or 'Tag attribute.
1128 -- Includes_Infinities (Flag11-Sem)
1129 -- This flag is present in N_Range nodes. It is set for the range of
1130 -- unconstrained float types defined in Standard, which include not only
1131 -- the given range of values, but also legtitimately can include infinite
1132 -- values. This flag is false for any float type for which an explicit
1133 -- range is given by the programmer, even if that range is identical to
1134 -- the range for Float.
1136 -- Instance_Spec (Node5-Sem)
1137 -- This field is present in generic instantiation nodes, and also in
1138 -- formal package declaration nodes (formal package declarations are
1139 -- treated in a manner very similar to package instantiations). It points
1140 -- to the node for the spec of the instance, inserted as part of the
1141 -- semantic processing for instantiations in Sem_Ch12.
1143 -- Is_Asynchronous_Call_Block (Flag7-Sem)
1144 -- A flag set in a Block_Statement node to indicate that it is the
1145 -- expansion of an asynchronous entry call. Such a block needs cleanup
1146 -- handler to assure that the call is cancelled.
1148 -- Is_Coextension (Flag18-Sem)
1149 -- Present in allocator nodes, to indicate that this is an allocator
1150 -- for an access discriminant of a dynamically allocated object. The
1151 -- coextension must be deallocated and finalized at the same time as
1152 -- the enclosing object.
1154 -- Is_Component_Left_Opnd (Flag13-Sem)
1155 -- Is_Component_Right_Opnd (Flag14-Sem)
1156 -- Present in concatenation nodes, to indicate that the corresponding
1157 -- operand is of the component type of the result. Used in resolving
1158 -- concatenation nodes in instances.
1160 -- Is_Controlling_Actual (Flag16-Sem)
1161 -- This flag is set on in an expression that is a controlling argument in
1162 -- a dispatching call. It is off in all other cases. See Sem_Disp for
1163 -- details of its use.
1165 -- Is_Entry_Barrier_Function (Flag8-Sem)
1166 -- This flag is set in an N_Subprogram_Body node which is the expansion
1167 -- of an entry barrier from a protected entry body. It is used for the
1168 -- circuitry checking for incorrect use of Current_Task.
1170 -- Is_In_Discriminant_Check (Flag11-Sem)
1171 -- This flag is present in a selected component, and is used to indicate
1172 -- that the reference occurs within a discriminant check. The
1173 -- significance is that optimizations based on assuming that the
1174 -- discriminant check has a correct value cannot be performed in this
1175 -- case (or the disriminant check may be optimized away!)
1177 -- Is_Machine_Number (Flag11-Sem)
1178 -- This flag is set in an N_Real_Literal node to indicate that the value
1179 -- is a machine number. This avoids some unnecessary cases of converting
1180 -- real literals to machine numbers.
1182 -- Is_Null_Loop (Flag16-Sem)
1183 -- This flag is set in an N_Loop_Statement node if the corresponding loop
1184 -- can be determined to be null at compile time. This is used to suppress
1185 -- any warnings that would otherwise be issued inside the loop since they
1186 -- are probably not useful.
1188 -- Is_Overloaded (Flag5-Sem)
1189 -- A flag present in all expression nodes. Used temporarily during
1190 -- overloading determination. The setting of this flag is not relevant
1191 -- once overloading analysis is complete.
1193 -- Is_Power_Of_2_For_Shift (Flag13-Sem)
1194 -- A flag present only in N_Op_Expon nodes. It is set when the
1195 -- exponentiation is of the forma 2 ** N, where the type of N is an
1196 -- unsigned integral subtype whose size does not exceed the size of
1197 -- Standard_Integer (i.e. a type that can be safely converted to
1198 -- Natural), and the exponentiation appears as the right operand of an
1199 -- integer multiplication or an integer division where the dividend is
1200 -- unsigned. It is also required that overflow checking is off for both
1201 -- the exponentiation and the multiply/divide node. If this set of
1202 -- conditions holds, and the flag is set, then the division or
1203 -- multiplication can be (and is) converted to a shift.
1205 -- Is_Overloaded (Flag5-Sem)
1206 -- A flag present in all expression nodes. Used temporarily during
1207 -- overloading determination. The setting of this flag is not relevant
1208 -- once overloading analysis is complete.
1210 -- Is_Protected_Subprogram_Body (Flag7-Sem)
1211 -- A flag set in a Subprogram_Body block to indicate that it is the
1212 -- implemenation of a protected subprogram. Such a body needs cleanup
1213 -- handler to make sure that the associated protected object is unlocked
1214 -- when the subprogram completes.
1216 -- Is_Static_Coextension (Flag14-Sem)
1217 -- Present in N_Allocator nodes. Set if the allocator is a coextension
1218 -- of an object allocated on the stack rather than the heap.
1220 -- Is_Static_Expression (Flag6-Sem)
1221 -- Indicates that an expression is a static expression (RM 4.9). See spec
1222 -- of package Sem_Eval for full details on the use of this flag.
1224 -- Is_Subprogram_Descriptor (Flag16-Sem)
1225 -- Present in N_Object_Declaration, and set only for the object
1226 -- declaration generated for a subprogram descriptor in fast exception
1227 -- mode. See Exp_Ch11 for details of use.
1229 -- Is_Task_Allocation_Block (Flag6-Sem)
1230 -- A flag set in a Block_Statement node to indicate that it is the
1231 -- expansion of a task allocator, or the allocator of an object
1232 -- containing tasks. Such a block requires a cleanup handler to call
1233 -- Expunge_Unactivted_Tasks to complete any tasks that have been
1234 -- allocated but not activated when the allocator completes abnormally.
1236 -- Is_Task_Master (Flag5-Sem)
1237 -- A flag set in a Subprogram_Body, Block_Statement or Task_Body node to
1238 -- indicate that the construct is a task master (i.e. has declared tasks
1239 -- or declares an access to a task type).
1241 -- Itype (Node1-Sem)
1242 -- Used in N_Itype_Reference node to reference an itype for which it is
1243 -- important to ensure that it is defined. See description of this node
1244 -- for further details.
1246 -- Kill_Range_Check (Flag11-Sem)
1247 -- Used in an N_Unchecked_Type_Conversion node to indicate that the
1248 -- result should not be subjected to range checks. This is used for the
1249 -- implementation of Normalize_Scalars.
1251 -- Label_Construct (Node2-Sem)
1252 -- Used in an N_Implicit_Label_Declaration node. Refers to an N_Label,
1253 -- N_Block_Statement or N_Loop_Statement node to which the label
1254 -- declaration applies. This is not currently used in the compiler
1255 -- itself, but it is useful in the implementation of ASIS queries.
1256 -- This field is left empty for the special labels generated as part
1257 -- of expanding raise statements with a local exception handler.
1259 -- Library_Unit (Node4-Sem)
1260 -- In a stub node, Library_Unit points to the compilation unit node of
1261 -- the corresponding subunit.
1263 -- In a with clause node, Library_Unit points to the spec of the with'ed
1266 -- In a compilation unit node, the usage depends on the unit type:
1268 -- For a subprogram body, Library_Unit points to the compilation unit
1269 -- node of the corresponding spec, unless Acts_As_Spec is set, in which
1270 -- case it points to itself.
1272 -- For a package body, Library_Unit points to the compilation unit of
1273 -- the corresponding package spec.
1275 -- For a subprogram spec to which pragma Inline applies, Library_Unit
1276 -- points to the compilation unit node of the corresponding body, if
1277 -- inlining is active.
1279 -- For a generic declaration, Library_Unit points to the compilation
1280 -- unit node of the corresponding generic body.
1282 -- For a subunit, Library_Unit points to the compilation unit node of
1285 -- Note that this field is not used to hold the parent pointer for child
1286 -- unit (which might in any case need to use it for some other purpose as
1287 -- described above). Instead for a child unit, implicit with's are
1288 -- generated for all parents.
1290 -- Loop_Actions (List2-Sem)
1291 -- A list present in Component_Association nodes in array aggregates.
1292 -- Used to collect actions that must be executed within the loop because
1293 -- they may need to be evaluated anew each time through.
1295 -- Limited_View_Installed (Flag18-Sem)
1296 -- Present in With_Clauses and in package specifications. If set on
1297 -- with_clause, it indicates that this clause has created the current
1298 -- limited view of the designated package. On a package specification, it
1299 -- indicates that the limited view has already been created because the
1300 -- package is mentioned in a limited_with_clause in the closure of the
1301 -- unit being compiled.
1303 -- Local_Raise_Not_OK (Flag7-Sem)
1304 -- Present in N_Exception_Handler nodes. Set if the handler contains
1305 -- a construct (reraise statement, or call to subprogram in package
1306 -- GNAT.Current_Exception) that makes the handler unsuitable as a target
1307 -- for a local raise (one that could otherwise be converted to a goto).
1309 -- Must_Be_Byte_Aligned (Flag14-Sem)
1310 -- This flag is present in N_Attribute_Reference nodes. It can be set
1311 -- only for the Address and Unrestricted_Access attributes. If set it
1312 -- means that the object for which the address/access is given must be on
1313 -- a byte (more accurately a storage unit) boundary. If necessary, a copy
1314 -- of the object is to be made before taking the address (this copy is in
1315 -- the current scope on the stack frame). This is used for certain cases
1316 -- of code generated by the expander that passes parameters by address.
1318 -- The reason the copy is not made by the front end is that the back end
1319 -- has more information about type layout and may be able to (but is not
1320 -- guaranteed to) prevent making unnecessary copies.
1322 -- Must_Not_Freeze (Flag8-Sem)
1323 -- A flag present in all expression nodes. Normally expressions cause
1324 -- freezing as described in the RM. If this flag is set, then this is
1325 -- inhibited. This is used by the analyzer and expander to label nodes
1326 -- that are created by semantic analysis or expansion and which must not
1327 -- cause freezing even though they normally would. This flag is also
1328 -- present in an N_Subtype_Indication node, since we also use these in
1329 -- calls to Freeze_Expression.
1331 -- Next_Entity (Node2-Sem)
1332 -- Present in defining identifiers, defining character literals and
1333 -- defining operator symbols (i.e. in all entities). The entities of a
1334 -- scope are chained, and this field is used as the forward pointer for
1335 -- this list. See Einfo for further details.
1337 -- Next_Named_Actual (Node4-Sem)
1338 -- Present in parameter association node. Set during semantic analysis to
1339 -- point to the next named parameter, where parameters are ordered by
1340 -- declaration order (as opposed to the actual order in the call, which
1341 -- may be different due to named associations). Not that this field
1342 -- points to the explicit actual parameter itself, not to the
1343 -- N_Parameter_Association node (its parent).
1345 -- Next_Rep_Item (Node5-Sem)
1346 -- Present in pragma nodes and attribute definition nodes. Used to link
1347 -- representation items that apply to an entity. See description of
1348 -- First_Rep_Item field in Einfo for full details.
1350 -- Next_Use_Clause (Node3-Sem)
1351 -- While use clauses are active during semantic processing, they are
1352 -- chained from the scope stack entry, using Next_Use_Clause as a link
1353 -- pointer, with Empty marking the end of the list. The head pointer is
1354 -- in the scope stack entry (First_Use_Clause). At the end of semantic
1355 -- processing (i.e. when Gigi sees the tree, the contents of this field
1356 -- is undefined and should not be read).
1358 -- No_Ctrl_Actions (Flag7-Sem)
1359 -- Present in N_Assignment_Statement to indicate that no finalize nor nor
1360 -- adjust should take place on this assignment eventhough the rhs is
1361 -- controlled. This is used in init procs and aggregate expansions where
1362 -- the generated assignments are more initialisations than real
1365 -- No_Elaboration_Check (Flag14-Sem)
1366 -- Present in N_Function_Call and N_Procedure_Call_Statement. Indicates
1367 -- that no elaboration check is needed on the call, because it appears in
1368 -- the context of a local Suppress pragma. This is used on calls within
1369 -- task bodies, where the actual elaboration checks are applied after
1370 -- analysis, when the local scope stack is not present.
1372 -- No_Entities_Ref_In_Spec (Flag8-Sem)
1373 -- Present in N_With_Clause nodes. Set if the with clause is on the
1374 -- package or subprogram spec where the main unit is the corresponding
1375 -- body, and no entities of the with'ed unit are referenced by the spec
1376 -- (an entity may still be referenced in the body, so this flag is used
1377 -- to generate the proper message (see Sem_Util.Check_Unused_Withs for
1380 -- No_Initialization (Flag13-Sem)
1381 -- Present in N_Object_Declaration & N_Allocator to indicate that the
1382 -- object must not be initialized (by Initialize or call to an init
1383 -- proc). This is needed for controlled aggregates. When the Object
1384 -- declaration has an expression, this flag means that this expression
1385 -- should not be taken into account (needed for in place initialization
1388 -- No_Truncation (Flag17-Sem)
1389 -- Present in N_Unchecked_Type_Conversion node. This flag has an effect
1390 -- only if the RM_Size of the source is greater than the RM_Size of the
1391 -- target for scalar operands. Normally in such a case we truncate some
1392 -- higher order bits of the source, and then sign/zero extend the result
1393 -- to form the output value. But if this flag is set, then we do not do
1394 -- any truncation, so for example, if an 8 bit input is converted to 5
1395 -- bit result which is in fact stored in 8 bits, then the high order
1396 -- three bits of the target result will be copied from the source. This
1397 -- is used for properly setting out of range values for use by pragmas
1398 -- Initialize_Scalars and Normalize_Scalars.
1400 -- Original_Discriminant (Node2-Sem)
1401 -- Present in identifiers. Used in references to discriminants that
1402 -- appear in generic units. Because the names of the discriminants may be
1403 -- different in an instance, we use this field to recover the position of
1404 -- the discriminant in the original type, and replace it with the
1405 -- discriminant at the same position in the instantiated type.
1407 -- Original_Entity (Node2-Sem)
1408 -- Present in numeric literals. Used to denote the named number that has
1409 -- been constant-folded into the given literal. If literal is from
1410 -- source, or the result of some other constant-folding operation, then
1411 -- Original_Entity is empty. This field is needed to handle properly
1412 -- named numbers in generic units, where the Associated_Node field
1413 -- interferes with the Entity field, making it impossible to preserve the
1414 -- original entity at the point of instantiation (ASIS problem).
1416 -- Others_Discrete_Choices (List1-Sem)
1417 -- When a case statement or variant is analyzed, the semantic checks
1418 -- determine the actual list of choices that correspond to an others
1419 -- choice. This list is materialized for later use by the expander and
1420 -- the Others_Discrete_Choices field of an N_Others_Choice node points to
1421 -- this materialized list of choices, which is in standard format for a
1422 -- list of discrete choices, except that of course it cannot contain an
1423 -- N_Others_Choice entry.
1425 -- Parameter_List_Truncated (Flag17-Sem)
1426 -- Present in N_Function_Call and N_Procedure_Call_Statement nodes. Set
1427 -- (for OpenVMS ports of GNAT only) if the parameter list is truncated as
1428 -- a result of a First_Optional_Parameter specification in an
1429 -- Import_Function, Import_Procedure, or Import_Valued_Procedure pragma.
1430 -- The truncation is done by the expander by removing trailing parameters
1431 -- from the argument list, in accordance with the set of rules allowing
1432 -- such parameter removal. In particular, parameters can be removed
1433 -- working from the end of the parameter list backwards up to and
1434 -- including the entry designated by First_Optional_Parameter in the
1435 -- Import pragma. Parameters can be removed if they are implicit and the
1436 -- default value is a known-at-compile-time value, including the use of
1437 -- the Null_Parameter attribute, or if explicit parameter values are
1438 -- present that match the corresponding defaults.
1440 -- Parent_Spec (Node4-Sem)
1441 -- For a library unit that is a child unit spec (package or subprogram
1442 -- declaration, generic declaration or instantiation, or library level
1443 -- rename, this field points to the compilation unit node for the parent
1444 -- package specification. This field is Empty for library bodies (the
1445 -- parent spec in this case can be found from the corresponding spec).
1447 -- Present_Expr (Uint3-Sem)
1448 -- Present in an N_Variant node. This has a meaningful value only after
1449 -- Gigi has back annotated the tree with representation information. At
1450 -- this point, it contains a reference to a gcc expression that depends
1451 -- on the values of one or more discriminants. Give a set of discriminant
1452 -- values, this expression evaluates to False (zero) if variant is not
1453 -- present, and True (non-zero) if it is present. See unit Repinfo for
1454 -- further details on gigi back annotation. This field is used during
1455 -- ASIS processing (data decomposition annex) to determine if a field is
1458 -- Print_In_Hex (Flag13-Sem)
1459 -- Set on an N_Integer_Literal node to indicate that the value should be
1460 -- printed in hexadecimal in the sprint listing. Has no effect on
1461 -- legality or semantics of program, only on the displayed output. This
1462 -- is used to clarify output from the packed array cases.
1464 -- Procedure_To_Call (Node2-Sem)
1465 -- Present in N_Allocator, N_Free_Statement, N_Return_Statement,
1466 -- and N_Extended_Return_Statement nodes. References the entity for the
1467 -- declaration of the procedure to be called to accomplish the required
1468 -- operation (i.e. for the Allocate procedure in the case of N_Allocator
1469 -- and N_Return_Statement and N_Extended_Return_Statement (for
1470 -- allocating the return value), and for the Deallocate procedure in the
1471 -- case of N_Free_Statement.
1473 -- Raises_Constraint_Error (Flag7-Sem)
1474 -- Set on an expression whose evaluation will definitely fail constraint
1475 -- error check. In the case of static expressions, this flag must be set
1476 -- accurately (and if it is set, the expression is typically illegal
1477 -- unless it appears as a non-elaborated branch of a short-circuit form).
1478 -- For a non-static expression, this flag may be set whenever an
1479 -- expression (e.g. an aggregate) is known to raise constraint error. If
1480 -- set, the expression definitely will raise CE if elaborated at runtime.
1481 -- If not set, the expression may or may not raise CE. In other words, on
1482 -- static expressions, the flag is set accurately, on non-static
1483 -- expressions it is set conservatively.
1485 -- Redundant_Use (Flag13-Sem)
1486 -- Present in nodes that can appear as an operand in a use clause or use
1487 -- type clause (identifiers, expanded names, attribute references). Set
1488 -- to indicate that a use is redundant (and therefore need not be undone
1491 -- Renaming_Exception (Node2-Sem)
1492 -- Present in N_Exception_Declaration node. Used to point back to the
1493 -- exception renaming for an exception declared within a subprogram.
1494 -- What happens is that an exception declared in a subprogram is moved
1495 -- to the library level with a unique name, and the original exception
1496 -- becomes a renaming. This link from the library level exception to the
1497 -- renaming declaration allows registering of the proper exception name.
1499 -- Return_Statement_Entity (Node5-Sem)
1500 -- Present in N_Return_Statement and N_Extended_Return_Statement.
1501 -- Points to an E_Return_Statement representing the return statement.
1503 -- Return_Object_Declarations (List3)
1504 -- Present in N_Extended_Return_Statement.
1505 -- Points to a list initially containing a single
1506 -- N_Object_Declaration representing the return object.
1507 -- We use a list (instead of just a pointer to the object decl)
1508 -- because Analyze wants to insert extra actions on this list.
1510 -- Rounded_Result (Flag18-Sem)
1511 -- Present in N_Type_Conversion, N_Op_Divide and N_Op_Multiply nodes.
1512 -- Used in the fixed-point cases to indicate that the result must be
1513 -- rounded as a result of the use of the 'Round attribute. Also used for
1514 -- integer N_Op_Divide nodes to indicate that the result should be
1515 -- rounded to the nearest integer (breaking ties away from zero), rather
1516 -- than truncated towards zero as usual. These rounded integer operations
1517 -- are the result of expansion of rounded fixed-point divide, conversion
1518 -- and multiplication operations.
1520 -- Scope (Node3-Sem)
1521 -- Present in defining identifiers, defining character literals and
1522 -- defining operator symbols (i.e. in all entities). The entities of a
1523 -- scope all use this field to reference the corresponding scope entity.
1524 -- See Einfo for further details.
1526 -- Shift_Count_OK (Flag4-Sem)
1527 -- A flag present in shift nodes to indicate that the shift count is
1528 -- known to be in range, i.e. is in the range from zero to word length
1529 -- minus one. If this flag is not set, then the shift count may be
1530 -- outside this range, i.e. larger than the word length, and the code
1531 -- must ensure that such shift counts give the appropriate result.
1533 -- Source_Type (Node1-Sem)
1534 -- Used in an N_Validate_Unchecked_Conversion node to point to the
1535 -- source type entity for the unchecked conversion instantiation
1536 -- which gigi must do size validation for.
1538 -- Static_Processing_OK (Flag4-Sem)
1539 -- Present in N_Aggregate nodes. When the Compile_Time_Known_Aggregate
1540 -- flag is set, the full value of the aggregate can be determined at
1541 -- compile time and the aggregate can be passed as is to the back-end.
1542 -- In this event it is irrelevant whether this flag is set or not.
1543 -- However, if the flag Compile_Time_Known_Aggregate is not set but
1544 -- Static_Processing_OK is set, the aggregate can (but need not) be
1545 -- converted into a compile time known aggregate by the expander. See
1546 -- Sem_Aggr for the specific conditions under which an aggregate has its
1547 -- Static_Processing_OK flag set.
1549 -- Storage_Pool (Node1-Sem)
1550 -- Present in N_Allocator, N_Free_Statement, N_Return_Statement, and
1551 -- N_Extended_Return_Statement nodes. References the entity for the
1552 -- storage pool to be used for the allocate or free call or for the
1553 -- allocation of the returned value from function. Empty indicates that
1554 -- the global default default pool is to be used. Note that in the case
1555 -- of a return statement, this field is set only if the function returns
1556 -- value of a type whose size is not known at compile time on the
1559 -- Target_Type (Node2-Sem)
1560 -- Used in an N_Validate_Unchecked_Conversion node to point to the target
1561 -- type entity for the unchecked conversion instantiation which gigi must
1562 -- do size validation for.
1564 -- Then_Actions (List3-Sem)
1565 -- This field is present in conditional expression nodes. During code
1566 -- expansion we use the Insert_Actions procedure (in Exp_Util) to insert
1567 -- actions at an appropriate place in the tree to get elaborated at the
1568 -- right time. For conditional expressions, we have to be sure that the
1569 -- actions for the Then branch are only elaborated if the condition is
1570 -- True. The Then_Actions field is used as a temporary parking place for
1571 -- these actions. The final tree is always rewritten to eliminate the
1572 -- need for this field, so in the tree passed to Gigi, this field is
1573 -- always set to No_List.
1575 -- Treat_Fixed_As_Integer (Flag14-Sem)
1576 -- This flag appears in operator nodes for divide, multiply, mod and rem
1577 -- on fixed-point operands. It indicates that the operands are to be
1578 -- treated as integer values, ignoring small values. This flag is only
1579 -- set as a result of expansion of fixed-point operations. Typically a
1580 -- fixed-point multplication in the source generates subsidiary
1581 -- multiplication and division operations that work with the underlying
1582 -- integer values and have this flag set. Note that this flag is not
1583 -- needed on other arithmetic operations (add, neg, subtract etc) since
1584 -- in these cases it is always the case that fixed is treated as integer.
1585 -- The Etype field MUST be set if this flag is set. The analyzer knows to
1586 -- leave such nodes alone, and whoever makes them must set the correct
1589 -- TSS_Elist (Elist3-Sem)
1590 -- Present in N_Freeze_Entity nodes. Holds an element list containing
1591 -- entries for each TSS (type support subprogram) associated with the
1592 -- frozen type. The elements of the list are the entities for the
1593 -- subprograms (see package Exp_TSS for further details). Set to No_Elist
1594 -- if there are no type support subprograms for the type or if the freeze
1595 -- node is not for a type.
1597 -- Unreferenced_In_Spec (Flag7-Sem)
1598 -- Present in N_With_Clause nodes. Set if the with clause is on the
1599 -- package or subprogram spec where the main unit is the corresponding
1600 -- body, and is not referenced by the spec (it may still be referenced by
1601 -- the body, so this flag is used to generate the proper message (see
1602 -- Sem_Util.Check_Unused_Withs for details)
1604 -- Was_Originally_Stub (Flag13-Sem)
1605 -- This flag is set in the node for a proper body that replaces stub.
1606 -- During the analysis procedure, stubs in some situations get rewritten
1607 -- by the corresponding bodies, and we set this flag to remember that
1608 -- this happened. Note that it is not good enough to rely on the use of
1609 -- Original_Node here because of the case of nested instantiations where
1610 -- the substituted node can be copied.
1612 -- Zero_Cost_Handling (Flag5-Sem)
1613 -- This flag is set in all handled sequence of statement and exception
1614 -- handler nodes if eceptions are to be handled using the zero-cost
1615 -- mechanism (see Ada.Exceptions and System.Exceptions in files
1616 -- a-except.ads/adb and s-except.ads for full details). What gigi needs
1617 -- to do for such a handler is simply to put the code in the handler
1618 -- somewhere. The front end has generated all necessary labels.
1620 --------------------------------------------------
1621 -- Note on Use of End_Label and End_Span Fields --
1622 --------------------------------------------------
1624 -- Several constructs have end lines:
1626 -- Loop Statement end loop [loop_IDENTIFIER];
1627 -- Package Specification end [[PARENT_UNIT_NAME .] IDENTIFIER]
1628 -- Task Definition end [task_IDENTIFIER]
1629 -- Protected Definition end [protected_IDENTIFIER]
1630 -- Protected Body end [protected_IDENTIFIER]
1632 -- Block Statement end [block_IDENTIFIER];
1633 -- Subprogram Body end [DESIGNATOR];
1634 -- Package Body end [[PARENT_UNIT_NAME .] IDENTIFIER];
1635 -- Task Body end [task_IDENTIFIER];
1636 -- Accept Statement end [entry_IDENTIFIER]];
1637 -- Entry Body end [entry_IDENTIFIER];
1639 -- If Statement end if;
1640 -- Case Statement end case;
1642 -- Record Definition end record;
1643 -- Enumeration Definition );
1645 -- The End_Label and End_Span fields are used to mark the locations of
1646 -- these lines, and also keep track of the label in the case where a label
1649 -- For the first group above, the End_Label field of the corresponding node
1650 -- is used to point to the label identifier. In the case where there is no
1651 -- label in the source, the parser supplies a dummy identifier (with
1652 -- Comes_From_Source set to False), and the Sloc of this dummy identifier
1653 -- marks the location of the token following the END token.
1655 -- For the second group, the use of End_Label is similar, but the End_Label
1656 -- is found in the N_Handled_Sequence_Of_Statements node. This is done
1657 -- simply because in some cases there is no room in the parent node.
1659 -- For the third group, there is never any label, and instead of using
1660 -- End_Label, we use the End_Span field which gives the location of the
1661 -- token following END, relative to the starting Sloc of the construct,
1662 -- i.e. add Sloc (Node) + End_Span (Node) to get the Sloc of the IF or CASE
1663 -- following the End_Label.
1665 -- The record definition case is handled specially, we treat it as though
1666 -- it required an optional label which is never present, and so the parser
1667 -- always builds a dummy identifier with Comes From Source set False. The
1668 -- reason we do this, rather than using End_Span in this case, is that we
1669 -- want to generate a cross-ref entry for the end of a record, since it
1670 -- represents a scope for name declaration purposes.
1672 -- The enumeration definition case is handled in an exactly similar manner,
1673 -- building a dummy identifier to get a cross-reference.
1675 -- Note: the reason we store the difference as a Uint, instead of storing
1676 -- the Source_Ptr value directly, is that Source_Ptr values cannot be
1677 -- distinguished from other types of values, and we count on all general
1678 -- use fields being self describing. To make things easier for clients,
1679 -- note that we provide function End_Location, and procedure
1680 -- Set_End_Location to allow access to the logical value (which is the
1681 -- Source_Ptr value for the end token).
1683 ---------------------
1684 -- Syntactic Nodes --
1685 ---------------------
1687 ---------------------
1688 -- 2.3 Identifier --
1689 ---------------------
1691 -- IDENTIFIER ::= IDENTIFIER_LETTER {[UNDERLINE] LETTER_OR_DIGIT}
1692 -- LETTER_OR_DIGIT ::= IDENTIFIER_LETTER | DIGIT
1694 -- An IDENTIFIER shall not be a reserved word
1696 -- In the Ada grammar identifiers are the bottom level tokens which have
1697 -- very few semantics. Actual program identifiers are direct names. If
1698 -- we were being 100% honest with the grammar, then we would have a node
1699 -- called N_Direct_Name which would point to an identifier. However,
1700 -- that's too many extra nodes, so we just use the N_Identifier node
1701 -- directly as a direct name, and it contains the expression fields and
1702 -- Entity field that correspond to its use as a direct name. In those
1703 -- few cases where identifiers appear in contexts where they are not
1704 -- direct names (pragmas, pragma argument associations, attribute
1705 -- references and attribute definition clauses), the Chars field of the
1706 -- node contains the Name_Id for the identifier name.
1708 -- Note: in GNAT, a reserved word can be treated as an identifier in two
1709 -- cases. First, an incorrect use of a reserved word as an identifier is
1710 -- diagnosed and then treated as a normal identifier. Second, an
1711 -- attribute designator of the form of a reserved word (access, delta,
1712 -- digits, range) is treated as an identifier.
1714 -- Note: The set of letters that is permitted in an identifier depends
1715 -- on the character set in use. See package Csets for full details.
1718 -- Sloc points to identifier
1719 -- Chars (Name1) contains the Name_Id for the identifier
1720 -- Entity (Node4-Sem)
1721 -- Associated_Node (Node4-Sem)
1722 -- Original_Discriminant (Node2-Sem)
1723 -- Redundant_Use (Flag13-Sem)
1724 -- Has_Private_View (Flag11-Sem) (set in generic units)
1725 -- plus fields for expression
1727 --------------------------
1728 -- 2.4 Numeric Literal --
1729 --------------------------
1731 -- NUMERIC_LITERAL ::= DECIMAL_LITERAL | BASED_LITERAL
1733 ----------------------------
1734 -- 2.4.1 Decimal Literal --
1735 ----------------------------
1737 -- DECIMAL_LITERAL ::= NUMERAL [.NUMERAL] [EXPONENT]
1739 -- NUMERAL ::= DIGIT {[UNDERLINE] DIGIT}
1741 -- EXPONENT ::= E [+] NUMERAL | E - NUMERAL
1743 -- Decimal literals appear in the tree as either integer literal nodes
1744 -- or real literal nodes, depending on whether a period is present.
1746 -- Note: literal nodes appear as a result of direct use of literals
1747 -- in the source program, and also as the result of evaluating
1748 -- expressions at compile time. In the latter case, it is possible
1749 -- to construct real literals that have no syntactic representation
1750 -- using the standard literal format. Such literals are listed by
1751 -- Sprint using the notation [numerator / denominator].
1753 -- Note: the value of an integer literal node created by the front end
1754 -- is never outside the range of values of the base type. However, it
1755 -- can be the case that the value is outside the range of the
1756 -- particular subtype. This happens in the case of integer overflows
1757 -- with checks suppressed.
1759 -- N_Integer_Literal
1760 -- Sloc points to literal
1761 -- Original_Entity (Node2-Sem) If not Empty, holds Named_Number that
1762 -- has been constant-folded into its literal value.
1763 -- Intval (Uint3) contains integer value of literal
1764 -- plus fields for expression
1765 -- Print_In_Hex (Flag13-Sem)
1768 -- Sloc points to literal
1769 -- Original_Entity (Node2-Sem) If not Empty, holds Named_Number that
1770 -- has been constant-folded into its literal value.
1771 -- Realval (Ureal3) contains real value of literal
1772 -- Corresponding_Integer_Value (Uint4-Sem)
1773 -- Is_Machine_Number (Flag11-Sem)
1774 -- plus fields for expression
1776 --------------------------
1777 -- 2.4.2 Based Literal --
1778 --------------------------
1780 -- BASED_LITERAL ::=
1781 -- BASE # BASED_NUMERAL [.BASED_NUMERAL] # [EXPONENT]
1785 -- BASED_NUMERAL ::=
1786 -- EXTENDED_DIGIT {[UNDERLINE] EXTENDED_DIGIT}
1788 -- EXTENDED_DIGIT ::= DIGIT | A | B | C | D | E | F
1790 -- Based literals appear in the tree as either integer literal nodes
1791 -- or real literal nodes, depending on whether a period is present.
1793 ----------------------------
1794 -- 2.5 Character Literal --
1795 ----------------------------
1797 -- CHARACTER_LITERAL ::= ' GRAPHIC_CHARACTER '
1799 -- N_Character_Literal
1800 -- Sloc points to literal
1801 -- Chars (Name1) contains the Name_Id for the identifier
1802 -- Char_Literal_Value (Uint2) contains the literal value
1803 -- Entity (Node4-Sem)
1804 -- Associated_Node (Node4-Sem)
1805 -- Has_Private_View (Flag11-Sem) set in generic units.
1806 -- plus fields for expression
1808 -- Note: the Entity field will be missing (set to Empty) for character
1809 -- literals whose type is Standard.Wide_Character or Standard.Character
1810 -- or a type derived from one of these two. In this case the character
1811 -- literal stands for its own coding. The reason we take this irregular
1812 -- short cut is to avoid the need to build lots of junk defining
1813 -- character literal nodes.
1815 -------------------------
1816 -- 2.6 String Literal --
1817 -------------------------
1819 -- STRING LITERAL ::= "{STRING_ELEMENT}"
1821 -- A STRING_ELEMENT is either a pair of quotation marks ("), or a
1822 -- single GRAPHIC_CHARACTER other than a quotation mark.
1825 -- Sloc points to literal
1826 -- Strval (Str3) contains Id of string value
1827 -- Has_Wide_Character (Flag11-Sem)
1828 -- plus fields for expression
1834 -- A COMMENT starts with two adjacent hyphens and extends up to the
1835 -- end of the line. A COMMENT may appear on any line of a program.
1837 -- Comments are skipped by the scanner and do not appear in the tree.
1838 -- It is possible to reconstruct the position of comments with respect
1839 -- to the elements of the tree by using the source position (Sloc)
1840 -- pointers that appear in every tree node.
1846 -- PRAGMA ::= pragma IDENTIFIER
1847 -- [(PRAGMA_ARGUMENT_ASSOCIATION {, PRAGMA_ARGUMENT_ASSOCIATION})];
1849 -- Note that a pragma may appear in the tree anywhere a declaration
1850 -- or a statement may appear, as well as in some other situations
1851 -- which are explicitly documented.
1854 -- Sloc points to PRAGMA
1855 -- Chars (Name1) identifier name from pragma identifier
1856 -- Pragma_Argument_Associations (List2) (set to No_List if none)
1857 -- Debug_Statement (Node3) (set to Empty if not Debug, Assert)
1858 -- Next_Rep_Item (Node5-Sem)
1860 -- Note: we should have a section on what pragmas are passed on to
1861 -- the back end to be processed. This section should note that pragma
1862 -- Psect_Object is always converted to Common_Object, but there are
1863 -- undoubtedly many other similar notes required ???
1865 --------------------------------------
1866 -- 2.8 Pragma Argument Association --
1867 --------------------------------------
1869 -- PRAGMA_ARGUMENT_ASSOCIATION ::=
1870 -- [pragma_argument_IDENTIFIER =>] NAME
1871 -- | [pragma_argument_IDENTIFIER =>] EXPRESSION
1873 -- N_Pragma_Argument_Association
1874 -- Sloc points to first token in association
1875 -- Chars (Name1) (set to No_Name if no pragma argument identifier)
1876 -- Expression (Node3)
1878 ------------------------
1879 -- 2.9 Reserved Word --
1880 ------------------------
1882 -- Reserved words are parsed by the scanner, and returned as the
1883 -- corresponding token types (e.g. PACKAGE is returned as Tok_Package)
1885 ----------------------------
1886 -- 3.1 Basic Declaration --
1887 ----------------------------
1889 -- BASIC_DECLARATION ::=
1890 -- TYPE_DECLARATION | SUBTYPE_DECLARATION
1891 -- | OBJECT_DECLARATION | NUMBER_DECLARATION
1892 -- | SUBPROGRAM_DECLARATION | ABSTRACT_SUBPROGRAM_DECLARATION
1893 -- | PACKAGE_DECLARATION | RENAMING_DECLARATION
1894 -- | EXCEPTION_DECLARATION | GENERIC_DECLARATION
1895 -- | GENERIC_INSTANTIATION
1897 -- Basic declaration also includes IMPLICIT_LABEL_DECLARATION
1898 -- see further description in section on semantic nodes.
1900 -- Also, in the tree that is constructed, a pragma may appear
1901 -- anywhere that a declaration may appear.
1903 ------------------------------
1904 -- 3.1 Defining Identifier --
1905 ------------------------------
1907 -- DEFINING_IDENTIFIER ::= IDENTIFIER
1909 -- A defining identifier is an entity, which has additional fields
1910 -- depending on the setting of the Ekind field. These additional
1911 -- fields are defined (and access subprograms declared) in package
1914 -- Note: N_Defining_Identifier is an extended node whose fields are
1915 -- deliberate layed out to match the layout of fields in an ordinary
1916 -- N_Identifier node allowing for easy alteration of an identifier
1917 -- node into a defining identifier node. For details, see procedure
1918 -- Sinfo.CN.Change_Identifier_To_Defining_Identifier.
1920 -- N_Defining_Identifier
1921 -- Sloc points to identifier
1922 -- Chars (Name1) contains the Name_Id for the identifier
1923 -- Next_Entity (Node2-Sem)
1924 -- Scope (Node3-Sem)
1925 -- Etype (Node5-Sem)
1927 -----------------------------
1928 -- 3.2.1 Type Declaration --
1929 -----------------------------
1931 -- TYPE_DECLARATION ::=
1932 -- FULL_TYPE_DECLARATION
1933 -- | INCOMPLETE_TYPE_DECLARATION
1934 -- | PRIVATE_TYPE_DECLARATION
1935 -- | PRIVATE_EXTENSION_DECLARATION
1937 ----------------------------------
1938 -- 3.2.1 Full Type Declaration --
1939 ----------------------------------
1941 -- FULL_TYPE_DECLARATION ::=
1942 -- type DEFINING_IDENTIFIER [KNOWN_DISCRIMINANT_PART]
1943 -- is TYPE_DEFINITION;
1944 -- | TASK_TYPE_DECLARATION
1945 -- | PROTECTED_TYPE_DECLARATION
1947 -- The full type declaration node is used only for the first case. The
1948 -- second case (concurrent type declaration), is represented directly
1949 -- by a task type declaration or a protected type declaration.
1951 -- N_Full_Type_Declaration
1952 -- Sloc points to TYPE
1953 -- Defining_Identifier (Node1)
1954 -- Discriminant_Specifications (List4) (set to No_List if none)
1955 -- Type_Definition (Node3)
1956 -- Discr_Check_Funcs_Built (Flag11-Sem)
1958 ----------------------------
1959 -- 3.2.1 Type Definition --
1960 ----------------------------
1962 -- TYPE_DEFINITION ::=
1963 -- ENUMERATION_TYPE_DEFINITION | INTEGER_TYPE_DEFINITION
1964 -- | REAL_TYPE_DEFINITION | ARRAY_TYPE_DEFINITION
1965 -- | RECORD_TYPE_DEFINITION | ACCESS_TYPE_DEFINITION
1966 -- | DERIVED_TYPE_DEFINITION | INTERFACE_TYPE_DEFINITION
1968 --------------------------------
1969 -- 3.2.2 Subtype Declaration --
1970 --------------------------------
1972 -- SUBTYPE_DECLARATION ::=
1973 -- subtype DEFINING_IDENTIFIER is [NULL_EXCLUSION] SUBTYPE_INDICATION;
1975 -- The subtype indication field is set to Empty for subtypes
1976 -- declared in package Standard (Positive, Natural).
1978 -- N_Subtype_Declaration
1979 -- Sloc points to SUBTYPE
1980 -- Defining_Identifier (Node1)
1981 -- Null_Exclusion_Present (Flag11)
1982 -- Subtype_Indication (Node5)
1983 -- Generic_Parent_Type (Node4-Sem) (set for an actual derived type).
1984 -- Exception_Junk (Flag8-Sem)
1986 -------------------------------
1987 -- 3.2.2 Subtype Indication --
1988 -------------------------------
1990 -- SUBTYPE_INDICATION ::= SUBTYPE_MARK [CONSTRAINT]
1992 -- Note: if no constraint is present, the subtype indication appears
1993 -- directly in the tree as a subtype mark. The N_Subtype_Indication
1994 -- node is used only if a constraint is present.
1996 -- Note: [For Ada 2005 (AI-231)]: Because Ada 2005 extends this rule
1997 -- with the null-exclusion part (see AI-231), we had to introduce a new
1998 -- attribute in all the parents of subtype_indication nodes to indicate
1999 -- if the null-exclusion is present.
2001 -- Note: the reason that this node has expression fields is that a
2002 -- subtype indication can appear as an operand of a membership test.
2004 -- N_Subtype_Indication
2005 -- Sloc points to first token of subtype mark
2006 -- Subtype_Mark (Node4)
2007 -- Constraint (Node3)
2008 -- Etype (Node5-Sem)
2009 -- Must_Not_Freeze (Flag8-Sem)
2011 -- Note: Etype is a copy of the Etype field of the Subtype_Mark. The
2012 -- reason for this redundancy is so that in a list of array index types,
2013 -- the Etype can be uniformly accessed to determine the subscript type.
2014 -- This means that no Itype is constructed for the actual subtype that
2015 -- is created by the subtype indication. If such an Itype is required,
2016 -- it is constructed in the context in which the indication appears.
2018 -------------------------
2019 -- 3.2.2 Subtype Mark --
2020 -------------------------
2022 -- SUBTYPE_MARK ::= subtype_NAME
2024 -----------------------
2025 -- 3.2.2 Constraint --
2026 -----------------------
2028 -- CONSTRAINT ::= SCALAR_CONSTRAINT | COMPOSITE_CONSTRAINT
2030 ------------------------------
2031 -- 3.2.2 Scalar Constraint --
2032 ------------------------------
2034 -- SCALAR_CONSTRAINT ::=
2035 -- RANGE_CONSTRAINT | DIGITS_CONSTRAINT | DELTA_CONSTRAINT
2037 ---------------------------------
2038 -- 3.2.2 Composite Constraint --
2039 ---------------------------------
2041 -- COMPOSITE_CONSTRAINT ::=
2042 -- INDEX_CONSTRAINT | DISCRIMINANT_CONSTRAINT
2044 -------------------------------
2045 -- 3.3.1 Object Declaration --
2046 -------------------------------
2048 -- OBJECT_DECLARATION ::=
2049 -- DEFINING_IDENTIFIER_LIST : [aliased] [constant]
2050 -- [NULL_EXCLUSION] SUBTYPE_INDICATION [:= EXPRESSION];
2051 -- | DEFINING_IDENTIFIER_LIST : [aliased] [constant]
2052 -- ACCESS_DEFINITION [:= EXPRESSION];
2053 -- | DEFINING_IDENTIFIER_LIST : [aliased] [constant]
2054 -- ARRAY_TYPE_DEFINITION [:= EXPRESSION];
2055 -- | SINGLE_TASK_DECLARATION
2056 -- | SINGLE_PROTECTED_DECLARATION
2058 -- Note: aliased is not permitted in Ada 83 mode
2060 -- The N_Object_Declaration node is only for the first two cases.
2061 -- Single task declaration is handled by P_Task (9.1)
2062 -- Single protected declaration is handled by P_protected (9.5)
2064 -- Although the syntax allows multiple identifiers in the list, the
2065 -- semantics is as though successive declarations were given with
2066 -- identical type definition and expression components. To simplify
2067 -- semantic processing, the parser represents a multiple declaration
2068 -- case as a sequence of single declarations, using the More_Ids and
2069 -- Prev_Ids flags to preserve the original source form as described
2070 -- in the section on "Handling of Defining Identifier Lists".
2072 -- The flag Has_Init_Expression is set if an initializing expression
2073 -- is present. Normally it is set if and only if Expression contains
2074 -- a non-empty value, but there is an exception to this. When the
2075 -- initializing expression is an aggregate which requires explicit
2076 -- assignments, the Expression field gets set to Empty, but this flag
2077 -- is still set, so we don't forget we had an initializing expression.
2079 -- Note: if a range check is required for the initialization
2080 -- expression then the Do_Range_Check flag is set in the Expression,
2081 -- with the check being done against the type given by the object
2082 -- definition, which is also the Etype of the defining identifier.
2084 -- Note: the contents of the Expression field must be ignored (i.e.
2085 -- treated as though it were Empty) if No_Initialization is set True.
2087 -- Note: the back end places some restrictions on the form of the
2088 -- Expression field. If the object being declared is Atomic, then
2089 -- the Expression may not have the form of an aggregate (since this
2090 -- might cause the back end to generate separate assignments). It
2091 -- also cannot be a reference to an object marked as a true constant
2092 -- (Is_True_Constant flag set), where the object is itself initalized
2093 -- with an aggregate. If necessary the front end must generate an
2094 -- extra temporary (with Is_True_Constant set False), and initialize
2095 -- this temporary as required (the temporary itself is not atomic).
2097 -- Note: there is not node kind for object definition. Instead, the
2098 -- corresponding field holds a subtype indication, an array type
2099 -- definition, or (Ada 2005, AI-406) an access definition.
2101 -- N_Object_Declaration
2102 -- Sloc points to first identifier
2103 -- Defining_Identifier (Node1)
2104 -- Aliased_Present (Flag4) set if ALIASED appears
2105 -- Constant_Present (Flag17) set if CONSTANT appears
2106 -- Null_Exclusion_Present (Flag11)
2107 -- Object_Definition (Node4) subtype indic./array type def./ access def.
2108 -- Expression (Node3) (set to Empty if not present)
2109 -- Handler_List_Entry (Node2-Sem)
2110 -- Corresponding_Generic_Association (Node5-Sem)
2111 -- More_Ids (Flag5) (set to False if no more identifiers in list)
2112 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
2113 -- No_Initialization (Flag13-Sem)
2114 -- Assignment_OK (Flag15-Sem)
2115 -- Exception_Junk (Flag8-Sem)
2116 -- Is_Subprogram_Descriptor (Flag16-Sem)
2117 -- Has_Init_Expression (Flag14)
2119 -------------------------------------
2120 -- 3.3.1 Defining Identifier List --
2121 -------------------------------------
2123 -- DEFINING_IDENTIFIER_LIST ::=
2124 -- DEFINING_IDENTIFIER {, DEFINING_IDENTIFIER}
2126 -------------------------------
2127 -- 3.3.2 Number Declaration --
2128 -------------------------------
2130 -- NUMBER_DECLARATION ::=
2131 -- DEFINING_IDENTIFIER_LIST : constant := static_EXPRESSION;
2133 -- Although the syntax allows multiple identifiers in the list, the
2134 -- semantics is as though successive declarations were given with
2135 -- identical expressions. To simplify semantic processing, the parser
2136 -- represents a multiple declaration case as a sequence of single
2137 -- declarations, using the More_Ids and Prev_Ids flags to preserve
2138 -- the original source form as described in the section on "Handling
2139 -- of Defining Identifier Lists".
2141 -- N_Number_Declaration
2142 -- Sloc points to first identifier
2143 -- Defining_Identifier (Node1)
2144 -- Expression (Node3)
2145 -- More_Ids (Flag5) (set to False if no more identifiers in list)
2146 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
2148 ----------------------------------
2149 -- 3.4 Derived Type Definition --
2150 ----------------------------------
2152 -- DERIVED_TYPE_DEFINITION ::=
2153 -- [abstract] [limited] new [NULL_EXCLUSION] parent_SUBTYPE_INDICATION
2154 -- [[and INTERFACE_LIST] RECORD_EXTENSION_PART]
2156 -- Note: ABSTRACT, LIMITED and record extension part are not permitted
2159 -- Note: a record extension part is required if ABSTRACT is present
2161 -- N_Derived_Type_Definition
2162 -- Sloc points to NEW
2163 -- Abstract_Present (Flag4)
2164 -- Null_Exclusion_Present (Flag11) (set to False if not present)
2165 -- Subtype_Indication (Node5)
2166 -- Record_Extension_Part (Node3) (set to Empty if not present)
2167 -- Limited_Present (Flag17)
2168 -- Task_Present (Flag5) set in task interfaces
2169 -- Protected_Present (Flag6) set in protected interfaces
2170 -- Synchronized_Present (Flag7) set in interfaces
2171 -- Interface_List (List2) (set to No_List if none)
2172 -- Interface_Present (Flag16) set in abstract interfaces
2174 -- Note: Task_Present, Protected_Present, Synchronized_Present,
2175 -- Interface_List, and Interface_Present are used for abstract
2176 -- interfaces (see comments for INTERFACE_TYPE_DEFINITION).
2178 ---------------------------
2179 -- 3.5 Range Constraint --
2180 ---------------------------
2182 -- RANGE_CONSTRAINT ::= range RANGE
2184 -- N_Range_Constraint
2185 -- Sloc points to RANGE
2186 -- Range_Expression (Node4)
2193 -- RANGE_ATTRIBUTE_REFERENCE
2194 -- | SIMPLE_EXPRESSION .. SIMPLE_EXPRESSION
2196 -- Note: the case of a range given as a range attribute reference
2197 -- appears directly in the tree as an attribute reference.
2199 -- Note: the field name for a reference to a range is Range_Expression
2200 -- rather than Range, because range is a reserved keyword in Ada!
2202 -- Note: the reason that this node has expression fields is that a
2203 -- range can appear as an operand of a membership test. The Etype
2204 -- field is the type of the range (we do NOT construct an implicit
2205 -- subtype to represent the range exactly).
2208 -- Sloc points to ..
2209 -- Low_Bound (Node1)
2210 -- High_Bound (Node2)
2211 -- Includes_Infinities (Flag11)
2212 -- plus fields for expression
2214 -- Note: if the range appears in a context, such as a subtype
2215 -- declaration, where range checks are required on one or both of
2216 -- the expression fields, then type conversion nodes are inserted
2217 -- to represent the required checks.
2219 ----------------------------------------
2220 -- 3.5.1 Enumeration Type Definition --
2221 ----------------------------------------
2223 -- ENUMERATION_TYPE_DEFINITION ::=
2224 -- (ENUMERATION_LITERAL_SPECIFICATION
2225 -- {, ENUMERATION_LITERAL_SPECIFICATION})
2227 -- Note: the Literals field in the node described below is null for
2228 -- the case of the standard types CHARACTER and WIDE_CHARACTER, for
2229 -- which special processing handles these types as special cases.
2231 -- N_Enumeration_Type_Definition
2232 -- Sloc points to left parenthesis
2233 -- Literals (List1) (Empty for CHARACTER or WIDE_CHARACTER)
2234 -- End_Label (Node4) (set to Empty if internally generated record)
2236 ----------------------------------------------
2237 -- 3.5.1 Enumeration Literal Specification --
2238 ----------------------------------------------
2240 -- ENUMERATION_LITERAL_SPECIFICATION ::=
2241 -- DEFINING_IDENTIFIER | DEFINING_CHARACTER_LITERAL
2243 ---------------------------------------
2244 -- 3.5.1 Defining Character Literal --
2245 ---------------------------------------
2247 -- DEFINING_CHARACTER_LITERAL ::= CHARACTER_LITERAL
2249 -- A defining character literal is an entity, which has additional
2250 -- fields depending on the setting of the Ekind field. These
2251 -- additional fields are defined (and access subprograms declared)
2252 -- in package Einfo.
2254 -- Note: N_Defining_Character_Literal is an extended node whose fields
2255 -- are deliberate layed out to match the layout of fields in an ordinary
2256 -- N_Character_Literal node allowing for easy alteration of a character
2257 -- literal node into a defining character literal node. For details, see
2258 -- Sinfo.CN.Change_Character_Literal_To_Defining_Character_Literal.
2260 -- N_Defining_Character_Literal
2261 -- Sloc points to literal
2262 -- Chars (Name1) contains the Name_Id for the identifier
2263 -- Next_Entity (Node2-Sem)
2264 -- Scope (Node3-Sem)
2265 -- Etype (Node5-Sem)
2267 ------------------------------------
2268 -- 3.5.4 Integer Type Definition --
2269 ------------------------------------
2271 -- Note: there is an error in this rule in the latest version of the
2272 -- grammar, so we have retained the old rule pending clarification.
2274 -- INTEGER_TYPE_DEFINITION ::=
2275 -- SIGNED_INTEGER_TYPE_DEFINITION
2276 -- | MODULAR_TYPE_DEFINITION
2278 -------------------------------------------
2279 -- 3.5.4 Signed Integer Type Definition --
2280 -------------------------------------------
2282 -- SIGNED_INTEGER_TYPE_DEFINITION ::=
2283 -- range static_SIMPLE_EXPRESSION .. static_SIMPLE_EXPRESSION
2285 -- Note: the Low_Bound and High_Bound fields are set to Empty
2286 -- for integer types defined in package Standard.
2288 -- N_Signed_Integer_Type_Definition
2289 -- Sloc points to RANGE
2290 -- Low_Bound (Node1)
2291 -- High_Bound (Node2)
2293 ------------------------------------
2294 -- 3.5.4 Modular Type Definition --
2295 ------------------------------------
2297 -- MODULAR_TYPE_DEFINITION ::= mod static_EXPRESSION
2299 -- N_Modular_Type_Definition
2300 -- Sloc points to MOD
2301 -- Expression (Node3)
2303 ---------------------------------
2304 -- 3.5.6 Real Type Definition --
2305 ---------------------------------
2307 -- REAL_TYPE_DEFINITION ::=
2308 -- FLOATING_POINT_DEFINITION | FIXED_POINT_DEFINITION
2310 --------------------------------------
2311 -- 3.5.7 Floating Point Definition --
2312 --------------------------------------
2314 -- FLOATING_POINT_DEFINITION ::=
2315 -- digits static_SIMPLE_EXPRESSION [REAL_RANGE_SPECIFICATION]
2317 -- Note: The Digits_Expression and Real_Range_Specifications fields
2318 -- are set to Empty for floating-point types declared in Standard.
2320 -- N_Floating_Point_Definition
2321 -- Sloc points to DIGITS
2322 -- Digits_Expression (Node2)
2323 -- Real_Range_Specification (Node4) (set to Empty if not present)
2325 -------------------------------------
2326 -- 3.5.7 Real Range Specification --
2327 -------------------------------------
2329 -- REAL_RANGE_SPECIFICATION ::=
2330 -- range static_SIMPLE_EXPRESSION .. static_SIMPLE_EXPRESSION
2332 -- N_Real_Range_Specification
2333 -- Sloc points to RANGE
2334 -- Low_Bound (Node1)
2335 -- High_Bound (Node2)
2337 -----------------------------------
2338 -- 3.5.9 Fixed Point Definition --
2339 -----------------------------------
2341 -- FIXED_POINT_DEFINITION ::=
2342 -- ORDINARY_FIXED_POINT_DEFINITION | DECIMAL_FIXED_POINT_DEFINITION
2344 --------------------------------------------
2345 -- 3.5.9 Ordinary Fixed Point Definition --
2346 --------------------------------------------
2348 -- ORDINARY_FIXED_POINT_DEFINITION ::=
2349 -- delta static_EXPRESSION REAL_RANGE_SPECIFICATION
2351 -- Note: In Ada 83, the EXPRESSION must be a SIMPLE_EXPRESSION
2353 -- N_Ordinary_Fixed_Point_Definition
2354 -- Sloc points to DELTA
2355 -- Delta_Expression (Node3)
2356 -- Real_Range_Specification (Node4)
2358 -------------------------------------------
2359 -- 3.5.9 Decimal Fixed Point Definition --
2360 -------------------------------------------
2362 -- DECIMAL_FIXED_POINT_DEFINITION ::=
2363 -- delta static_EXPRESSION
2364 -- digits static_EXPRESSION [REAL_RANGE_SPECIFICATION]
2366 -- Note: decimal types are not permitted in Ada 83 mode
2368 -- N_Decimal_Fixed_Point_Definition
2369 -- Sloc points to DELTA
2370 -- Delta_Expression (Node3)
2371 -- Digits_Expression (Node2)
2372 -- Real_Range_Specification (Node4) (set to Empty if not present)
2374 ------------------------------
2375 -- 3.5.9 Digits Constraint --
2376 ------------------------------
2378 -- DIGITS_CONSTRAINT ::=
2379 -- digits static_EXPRESSION [RANGE_CONSTRAINT]
2381 -- Note: in Ada 83, the EXPRESSION must be a SIMPLE_EXPRESSION
2382 -- Note: in Ada 95, reduced accuracy subtypes are obsolescent
2384 -- N_Digits_Constraint
2385 -- Sloc points to DIGITS
2386 -- Digits_Expression (Node2)
2387 -- Range_Constraint (Node4) (set to Empty if not present)
2389 --------------------------------
2390 -- 3.6 Array Type Definition --
2391 --------------------------------
2393 -- ARRAY_TYPE_DEFINITION ::=
2394 -- UNCONSTRAINED_ARRAY_DEFINITION | CONSTRAINED_ARRAY_DEFINITION
2396 -----------------------------------------
2397 -- 3.6 Unconstrained Array Definition --
2398 -----------------------------------------
2400 -- UNCONSTRAINED_ARRAY_DEFINITION ::=
2401 -- array (INDEX_SUBTYPE_DEFINITION {, INDEX_SUBTYPE_DEFINITION}) of
2402 -- COMPONENT_DEFINITION
2404 -- Note: dimensionality of array is indicated by number of entries in
2405 -- the Subtype_Marks list, which has one entry for each dimension.
2407 -- N_Unconstrained_Array_Definition
2408 -- Sloc points to ARRAY
2409 -- Subtype_Marks (List2)
2410 -- Component_Definition (Node4)
2412 -----------------------------------
2413 -- 3.6 Index Subtype Definition --
2414 -----------------------------------
2416 -- INDEX_SUBTYPE_DEFINITION ::= SUBTYPE_MARK range <>
2418 -- There is no explicit node in the tree for an index subtype
2419 -- definition since the N_Unconstrained_Array_Definition node
2420 -- incorporates the type marks which appear in this context.
2422 ---------------------------------------
2423 -- 3.6 Constrained Array Definition --
2424 ---------------------------------------
2426 -- CONSTRAINED_ARRAY_DEFINITION ::=
2427 -- array (DISCRETE_SUBTYPE_DEFINITION
2428 -- {, DISCRETE_SUBTYPE_DEFINITION})
2429 -- of COMPONENT_DEFINITION
2431 -- Note: dimensionality of array is indicated by number of entries
2432 -- in the Discrete_Subtype_Definitions list, which has one entry
2433 -- for each dimension.
2435 -- N_Constrained_Array_Definition
2436 -- Sloc points to ARRAY
2437 -- Discrete_Subtype_Definitions (List2)
2438 -- Component_Definition (Node4)
2440 --------------------------------------
2441 -- 3.6 Discrete Subtype Definition --
2442 --------------------------------------
2444 -- DISCRETE_SUBTYPE_DEFINITION ::=
2445 -- discrete_SUBTYPE_INDICATION | RANGE
2447 -------------------------------
2448 -- 3.6 Component Definition --
2449 -------------------------------
2451 -- COMPONENT_DEFINITION ::=
2452 -- [aliased] [NULL_EXCLUSION] SUBTYPE_INDICATION | ACCESS_DEFINITION
2454 -- Note: although the syntax does not permit a component definition to
2455 -- be an anonymous array (and the parser will diagnose such an attempt
2456 -- with an appropriate message), it is possible for anonymous arrays
2457 -- to appear as component definitions. The semantics and back end handle
2458 -- this case properly, and the expander in fact generates such cases.
2459 -- Access_Definition is an optional field that gives support to
2460 -- Ada 2005 (AI-230). The parser generates nodes that have either the
2461 -- Subtype_Indication field or else the Access_Definition field.
2463 -- N_Component_Definition
2464 -- Sloc points to ALIASED, ACCESS or to first token of subtype mark
2465 -- Aliased_Present (Flag4)
2466 -- Null_Exclusion_Present (Flag11)
2467 -- Subtype_Indication (Node5) (set to Empty if not present)
2468 -- Access_Definition (Node3) (set to Empty if not present)
2470 -----------------------------
2471 -- 3.6.1 Index Constraint --
2472 -----------------------------
2474 -- INDEX_CONSTRAINT ::= (DISCRETE_RANGE {, DISCRETE_RANGE})
2476 -- It is not in general possible to distinguish between discriminant
2477 -- constraints and index constraints at parse time, since a simple
2478 -- name could be either the subtype mark of a discrete range, or an
2479 -- expression in a discriminant association with no name. Either
2480 -- entry appears simply as the name, and the semantic parse must
2481 -- distinguish between the two cases. Thus we use a common tree
2482 -- node format for both of these constraint types.
2484 -- See Discriminant_Constraint for format of node
2486 ---------------------------
2487 -- 3.6.1 Discrete Range --
2488 ---------------------------
2490 -- DISCRETE_RANGE ::= discrete_SUBTYPE_INDICATION | RANGE
2492 ----------------------------
2493 -- 3.7 Discriminant Part --
2494 ----------------------------
2496 -- DISCRIMINANT_PART ::=
2497 -- UNKNOWN_DISCRIMINANT_PART | KNOWN_DISCRIMINANT_PART
2499 ------------------------------------
2500 -- 3.7 Unknown Discriminant Part --
2501 ------------------------------------
2503 -- UNKNOWN_DISCRIMINANT_PART ::= (<>)
2505 -- Note: unknown discriminant parts are not permitted in Ada 83 mode
2507 -- There is no explicit node in the tree for an unknown discriminant
2508 -- part. Instead the Unknown_Discriminants_Present flag is set in the
2511 ----------------------------------
2512 -- 3.7 Known Discriminant Part --
2513 ----------------------------------
2515 -- KNOWN_DISCRIMINANT_PART ::=
2516 -- (DISCRIMINANT_SPECIFICATION {; DISCRIMINANT_SPECIFICATION})
2518 -------------------------------------
2519 -- 3.7 Discriminant Specification --
2520 -------------------------------------
2522 -- DISCRIMINANT_SPECIFICATION ::=
2523 -- DEFINING_IDENTIFIER_LIST : [NULL_EXCLUSION] SUBTYPE_MARK
2524 -- [:= DEFAULT_EXPRESSION]
2525 -- | DEFINING_IDENTIFIER_LIST : ACCESS_DEFINITION
2526 -- [:= DEFAULT_EXPRESSION]
2528 -- Although the syntax allows multiple identifiers in the list, the
2529 -- semantics is as though successive specifications were given with
2530 -- identical type definition and expression components. To simplify
2531 -- semantic processing, the parser represents a multiple declaration
2532 -- case as a sequence of single specifications, using the More_Ids and
2533 -- Prev_Ids flags to preserve the original source form as described
2534 -- in the section on "Handling of Defining Identifier Lists".
2536 -- N_Discriminant_Specification
2537 -- Sloc points to first identifier
2538 -- Defining_Identifier (Node1)
2539 -- Null_Exclusion_Present (Flag11)
2540 -- Discriminant_Type (Node5) subtype mark or access parameter definition
2541 -- Expression (Node3) (set to Empty if no default expression)
2542 -- More_Ids (Flag5) (set to False if no more identifiers in list)
2543 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
2545 -----------------------------
2546 -- 3.7 Default Expression --
2547 -----------------------------
2549 -- DEFAULT_EXPRESSION ::= EXPRESSION
2551 ------------------------------------
2552 -- 3.7.1 Discriminant Constraint --
2553 ------------------------------------
2555 -- DISCRIMINANT_CONSTRAINT ::=
2556 -- (DISCRIMINANT_ASSOCIATION {, DISCRIMINANT_ASSOCIATION})
2558 -- It is not in general possible to distinguish between discriminant
2559 -- constraints and index constraints at parse time, since a simple
2560 -- name could be either the subtype mark of a discrete range, or an
2561 -- expression in a discriminant association with no name. Either
2562 -- entry appears simply as the name, and the semantic parse must
2563 -- distinguish between the two cases. Thus we use a common tree
2564 -- node format for both of these constraint types.
2566 -- N_Index_Or_Discriminant_Constraint
2567 -- Sloc points to left paren
2568 -- Constraints (List1) points to list of discrete ranges or
2569 -- discriminant associations
2571 -------------------------------------
2572 -- 3.7.1 Discriminant Association --
2573 -------------------------------------
2575 -- DISCRIMINANT_ASSOCIATION ::=
2576 -- [discriminant_SELECTOR_NAME
2577 -- {| discriminant_SELECTOR_NAME} =>] EXPRESSION
2579 -- Note: a discriminant association that has no selector name list
2580 -- appears directly as an expression in the tree.
2582 -- N_Discriminant_Association
2583 -- Sloc points to first token of discriminant association
2584 -- Selector_Names (List1) (always non-empty, since if no selector
2585 -- names are present, this node is not used, see comment above)
2586 -- Expression (Node3)
2588 ---------------------------------
2589 -- 3.8 Record Type Definition --
2590 ---------------------------------
2592 -- RECORD_TYPE_DEFINITION ::=
2593 -- [[abstract] tagged] [limited] RECORD_DEFINITION
2595 -- Note: ABSTRACT, TAGGED, LIMITED are not permitted in Ada 83 mode
2597 -- There is no explicit node in the tree for a record type definition.
2598 -- Instead the flags for Tagged_Present and Limited_Present appear in
2599 -- the N_Record_Definition node for a record definition appearing in
2600 -- the context of a record type definition.
2602 ----------------------------
2603 -- 3.8 Record Definition --
2604 ----------------------------
2606 -- RECORD_DEFINITION ::=
2612 -- Note: the Abstract_Present, Tagged_Present and Limited_Present
2613 -- flags appear only for a record definition appearing in a record
2616 -- Note: the NULL RECORD case is not permitted in Ada 83
2618 -- N_Record_Definition
2619 -- Sloc points to RECORD or NULL
2620 -- End_Label (Node4) (set to Empty if internally generated record)
2621 -- Abstract_Present (Flag4)
2622 -- Tagged_Present (Flag15)
2623 -- Limited_Present (Flag17)
2624 -- Component_List (Node1) empty in null record case
2625 -- Null_Present (Flag13) set in null record case
2626 -- Task_Present (Flag5) set in task interfaces
2627 -- Protected_Present (Flag6) set in protected interfaces
2628 -- Synchronized_Present (Flag7) set in interfaces
2629 -- Interface_Present (Flag16) set in abstract interfaces
2630 -- Interface_List (List2) (set to No_List if none)
2632 -- Note: Task_Present, Protected_Present, Synchronized _Present,
2633 -- Interface_List and Interface_Present are used for abstract
2634 -- interfaces (see comments for INTERFACE_TYPE_DEFINITION).
2636 -------------------------
2637 -- 3.8 Component List --
2638 -------------------------
2640 -- COMPONENT_LIST ::=
2641 -- COMPONENT_ITEM {COMPONENT_ITEM}
2642 -- | {COMPONENT_ITEM} VARIANT_PART
2646 -- Sloc points to first token of component list
2647 -- Component_Items (List3)
2648 -- Variant_Part (Node4) (set to Empty if no variant part)
2649 -- Null_Present (Flag13)
2651 -------------------------
2652 -- 3.8 Component Item --
2653 -------------------------
2655 -- COMPONENT_ITEM ::= COMPONENT_DECLARATION | REPRESENTATION_CLAUSE
2657 -- Note: A component item can also be a pragma, and in the tree
2658 -- that is obtained after semantic processing, a component item
2659 -- can be an N_Null node resulting from a non-recognized pragma.
2661 --------------------------------
2662 -- 3.8 Component Declaration --
2663 --------------------------------
2665 -- COMPONENT_DECLARATION ::=
2666 -- DEFINING_IDENTIFIER_LIST : COMPONENT_DEFINITION
2667 -- [:= DEFAULT_EXPRESSION]
2669 -- Note: although the syntax does not permit a component definition to
2670 -- be an anonymous array (and the parser will diagnose such an attempt
2671 -- with an appropriate message), it is possible for anonymous arrays
2672 -- to appear as component definitions. The semantics and back end handle
2673 -- this case properly, and the expander in fact generates such cases.
2675 -- Although the syntax allows multiple identifiers in the list, the
2676 -- semantics is as though successive declarations were given with the
2677 -- same component definition and expression components. To simplify
2678 -- semantic processing, the parser represents a multiple declaration
2679 -- case as a sequence of single declarations, using the More_Ids and
2680 -- Prev_Ids flags to preserve the original source form as described
2681 -- in the section on "Handling of Defining Identifier Lists".
2683 -- N_Component_Declaration
2684 -- Sloc points to first identifier
2685 -- Defining_Identifier (Node1)
2686 -- Component_Definition (Node4)
2687 -- Expression (Node3) (set to Empty if no default expression)
2688 -- More_Ids (Flag5) (set to False if no more identifiers in list)
2689 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
2691 -------------------------
2692 -- 3.8.1 Variant Part --
2693 -------------------------
2696 -- case discriminant_DIRECT_NAME is
2701 -- Note: the variants list can contain pragmas as well as variants.
2702 -- In a properly formed program there is at least one variant.
2705 -- Sloc points to CASE
2709 --------------------
2711 --------------------
2714 -- when DISCRETE_CHOICE_LIST =>
2718 -- Sloc points to WHEN
2719 -- Discrete_Choices (List4)
2720 -- Component_List (Node1)
2721 -- Enclosing_Variant (Node2-Sem)
2722 -- Present_Expr (Uint3-Sem)
2723 -- Dcheck_Function (Node5-Sem)
2725 ---------------------------------
2726 -- 3.8.1 Discrete Choice List --
2727 ---------------------------------
2729 -- DISCRETE_CHOICE_LIST ::= DISCRETE_CHOICE {| DISCRETE_CHOICE}
2731 ----------------------------
2732 -- 3.8.1 Discrete Choice --
2733 ----------------------------
2735 -- DISCRETE_CHOICE ::= EXPRESSION | DISCRETE_RANGE | others
2737 -- Note: in Ada 83 mode, the expression must be a simple expression
2739 -- The only choice that appears explicitly is the OTHERS choice, as
2740 -- defined here. Other cases of discrete choice (expression and
2741 -- discrete range) appear directly. This production is also used
2742 -- for the OTHERS possibility of an exception choice.
2744 -- Note: in accordance with the syntax, the parser does not check that
2745 -- OTHERS appears at the end on its own in a choice list context. This
2746 -- is a semantic check.
2749 -- Sloc points to OTHERS
2750 -- Others_Discrete_Choices (List1-Sem)
2751 -- All_Others (Flag11-Sem)
2753 ----------------------------------
2754 -- 3.9.1 Record Extension Part --
2755 ----------------------------------
2757 -- RECORD_EXTENSION_PART ::= with RECORD_DEFINITION
2759 -- Note: record extension parts are not permitted in Ada 83 mode
2761 --------------------------------------
2762 -- 3.9.4 Interface Type Definition --
2763 --------------------------------------
2765 -- INTERFACE_TYPE_DEFINITION ::=
2766 -- [limited | task | protected | synchronized]
2767 -- interface [interface_list]
2769 -- Note: Interfaces are implemented with N_Record_Definition and
2770 -- N_Derived_Type_Definition nodes because most of the support
2771 -- for the analysis of abstract types has been reused to
2772 -- analyze abstract interfaces.
2774 ----------------------------------
2775 -- 3.10 Access Type Definition --
2776 ----------------------------------
2778 -- ACCESS_TYPE_DEFINITION ::=
2779 -- ACCESS_TO_OBJECT_DEFINITION
2780 -- | ACCESS_TO_SUBPROGRAM_DEFINITION
2782 --------------------------
2783 -- 3.10 Null Exclusion --
2784 --------------------------
2786 -- NULL_EXCLUSION ::= not null
2788 ---------------------------------------
2789 -- 3.10 Access To Object Definition --
2790 ---------------------------------------
2792 -- ACCESS_TO_OBJECT_DEFINITION ::=
2793 -- [NULL_EXCLUSION] access [GENERAL_ACCESS_MODIFIER]
2794 -- SUBTYPE_INDICATION
2796 -- N_Access_To_Object_Definition
2797 -- Sloc points to ACCESS
2798 -- All_Present (Flag15)
2799 -- Null_Exclusion_Present (Flag11)
2800 -- Subtype_Indication (Node5)
2801 -- Constant_Present (Flag17)
2803 -----------------------------------
2804 -- 3.10 General Access Modifier --
2805 -----------------------------------
2807 -- GENERAL_ACCESS_MODIFIER ::= all | constant
2809 -- Note: general access modifiers are not permitted in Ada 83 mode
2811 -- There is no explicit node in the tree for general access modifier.
2812 -- Instead the All_Present or Constant_Present flags are set in the
2815 -------------------------------------------
2816 -- 3.10 Access To Subprogram Definition --
2817 -------------------------------------------
2819 -- ACCESS_TO_SUBPROGRAM_DEFINITION
2820 -- [NULL_EXCLUSION] access [protected] procedure PARAMETER_PROFILE
2821 -- | [NULL_EXCLUSION] access [protected] function
2822 -- PARAMETER_AND_RESULT_PROFILE
2824 -- Note: access to subprograms are not permitted in Ada 83 mode
2826 -- N_Access_Function_Definition
2827 -- Sloc points to ACCESS
2828 -- Null_Exclusion_Present (Flag11)
2829 -- Protected_Present (Flag6)
2830 -- Parameter_Specifications (List3) (set to No_List if no formal part)
2831 -- Result_Definition (Node4) result subtype (subtype mark or access def)
2833 -- N_Access_Procedure_Definition
2834 -- Sloc points to ACCESS
2835 -- Null_Exclusion_Present (Flag11)
2836 -- Protected_Present (Flag6)
2837 -- Parameter_Specifications (List3) (set to No_List if no formal part)
2839 -----------------------------
2840 -- 3.10 Access Definition --
2841 -----------------------------
2843 -- ACCESS_DEFINITION ::=
2844 -- [NULL_EXCLUSION] access [GENERAL_ACCESS_MODIFIER] SUBTYPE_MARK
2845 -- | ACCESS_TO_SUBPROGRAM_DEFINITION
2847 -- Note: access to subprograms are an Ada 2005 (AI-254) extension
2849 -- N_Access_Definition
2850 -- Sloc points to ACCESS
2851 -- Null_Exclusion_Present (Flag11)
2852 -- All_Present (Flag15)
2853 -- Constant_Present (Flag17)
2854 -- Subtype_Mark (Node4)
2855 -- Access_To_Subprogram_Definition (Node3) (set to Empty if not present)
2857 -----------------------------------------
2858 -- 3.10.1 Incomplete Type Declaration --
2859 -----------------------------------------
2861 -- INCOMPLETE_TYPE_DECLARATION ::=
2862 -- type DEFINING_IDENTIFIER [DISCRIMINANT_PART] [IS TAGGED];
2864 -- N_Incomplete_Type_Declaration
2865 -- Sloc points to TYPE
2866 -- Defining_Identifier (Node1)
2867 -- Discriminant_Specifications (List4) (set to No_List if no
2868 -- discriminant part, or if the discriminant part is an
2869 -- unknown discriminant part)
2870 -- Unknown_Discriminants_Present (Flag13) set if (<>) discriminant
2871 -- Tagged_Present (Flag15)
2873 ----------------------------
2874 -- 3.11 Declarative Part --
2875 ----------------------------
2877 -- DECLARATIVE_PART ::= {DECLARATIVE_ITEM}
2879 -- Note: although the parser enforces the syntactic requirement that
2880 -- a declarative part can contain only declarations, the semantic
2881 -- processing may add statements to the list of actions in a
2882 -- declarative part, so the code generator should be prepared
2883 -- to accept a statement in this position.
2885 ----------------------------
2886 -- 3.11 Declarative Item --
2887 ----------------------------
2889 -- DECLARATIVE_ITEM ::= BASIC_DECLARATIVE_ITEM | BODY
2891 ----------------------------------
2892 -- 3.11 Basic Declarative Item --
2893 ----------------------------------
2895 -- BASIC_DECLARATIVE_ITEM ::=
2896 -- BASIC_DECLARATION | REPRESENTATION_CLAUSE | USE_CLAUSE
2902 -- BODY ::= PROPER_BODY | BODY_STUB
2904 -----------------------
2905 -- 3.11 Proper Body --
2906 -----------------------
2909 -- SUBPROGRAM_BODY | PACKAGE_BODY | TASK_BODY | PROTECTED_BODY
2916 -- DIRECT_NAME | EXPLICIT_DEREFERENCE
2917 -- | INDEXED_COMPONENT | SLICE
2918 -- | SELECTED_COMPONENT | ATTRIBUTE_REFERENCE
2919 -- | TYPE_CONVERSION | FUNCTION_CALL
2920 -- | CHARACTER_LITERAL
2922 ----------------------
2923 -- 4.1 Direct Name --
2924 ----------------------
2926 -- DIRECT_NAME ::= IDENTIFIER | OPERATOR_SYMBOL
2932 -- PREFIX ::= NAME | IMPLICIT_DEREFERENCE
2934 -------------------------------
2935 -- 4.1 Explicit Dereference --
2936 -------------------------------
2938 -- EXPLICIT_DEREFERENCE ::= NAME . all
2940 -- N_Explicit_Dereference
2941 -- Sloc points to ALL
2943 -- Actual_Designated_Subtype (Node4-Sem)
2944 -- plus fields for expression
2946 -------------------------------
2947 -- 4.1 Implicit Dereference --
2948 -------------------------------
2950 -- IMPLICIT_DEREFERENCE ::= NAME
2952 ------------------------------
2953 -- 4.1.1 Indexed Component --
2954 ------------------------------
2956 -- INDEXED_COMPONENT ::= PREFIX (EXPRESSION {, EXPRESSION})
2958 -- Note: the parser may generate this node in some situations where it
2959 -- should be a function call. The semantic pass must correct this
2960 -- misidentification (which is inevitable at the parser level).
2962 -- N_Indexed_Component
2963 -- Sloc contains a copy of the Sloc value of the Prefix
2965 -- Expressions (List1)
2966 -- plus fields for expression
2968 -- Note: if any of the subscripts requires a range check, then the
2969 -- Do_Range_Check flag is set on the corresponding expression, with
2970 -- the index type being determined from the type of the Prefix, which
2971 -- references the array being indexed.
2973 -- Note: in a fully analyzed and expanded indexed component node, and
2974 -- hence in any such node that gigi sees, if the prefix is an access
2975 -- type, then an explicit dereference operation has been inserted.
2981 -- SLICE ::= PREFIX (DISCRETE_RANGE)
2983 -- Note: an implicit subtype is created to describe the resulting
2984 -- type, so that the bounds of this type are the bounds of the slice.
2987 -- Sloc points to first token of prefix
2989 -- Discrete_Range (Node4)
2990 -- plus fields for expression
2992 -------------------------------
2993 -- 4.1.3 Selected Component --
2994 -------------------------------
2996 -- SELECTED_COMPONENT ::= PREFIX . SELECTOR_NAME
2998 -- Note: selected components that are semantically expanded names get
2999 -- changed during semantic processing into the separate N_Expanded_Name
3000 -- node. See description of this node in the section on semantic nodes.
3002 -- N_Selected_Component
3003 -- Sloc points to period
3005 -- Selector_Name (Node2)
3006 -- Associated_Node (Node4-Sem)
3007 -- Do_Discriminant_Check (Flag13-Sem)
3008 -- Is_In_Discriminant_Check (Flag11-Sem)
3009 -- plus fields for expression
3011 --------------------------
3012 -- 4.1.3 Selector Name --
3013 --------------------------
3015 -- SELECTOR_NAME ::= IDENTIFIER | CHARACTER_LITERAL | OPERATOR_SYMBOL
3017 --------------------------------
3018 -- 4.1.4 Attribute Reference --
3019 --------------------------------
3021 -- ATTRIBUTE_REFERENCE ::= PREFIX ' ATTRIBUTE_DESIGNATOR
3023 -- Note: the syntax is quite ambiguous at this point. Consider:
3025 -- A'Length (X) X is part of the attribute designator
3026 -- A'Pos (X) X is an explicit actual parameter of function A'Pos
3027 -- A'Class (X) X is the expression of a type conversion
3029 -- It would be possible for the parser to distinguish these cases
3030 -- by looking at the attribute identifier. However, that would mean
3031 -- more work in introducing new implementation defined attributes,
3032 -- and also it would mean that special processing for attributes
3033 -- would be scattered around, instead of being centralized in the
3034 -- semantic routine that handles an N_Attribute_Reference node.
3035 -- Consequently, the parser in all the above cases stores the
3036 -- expression (X in these examples) as a single element list in
3037 -- in the Expressions field of the N_Attribute_Reference node.
3039 -- Similarly, for attributes like Max which take two arguments,
3040 -- we store the two arguments as a two element list in the
3041 -- Expressions field. Of course it is clear at parse time that
3042 -- this case is really a function call with an attribute as the
3043 -- prefix, but it turns out to be convenient to handle the two
3044 -- argument case in a similar manner to the one argument case,
3045 -- and indeed in general the parser will accept any number of
3046 -- expressions in this position and store them as a list in the
3047 -- attribute reference node. This allows for future addition of
3048 -- attributes that take more than two arguments.
3050 -- Note: named associates are not permitted in function calls where
3051 -- the function is an attribute (see RM 6.4(3)) so it is legitimate
3052 -- to skip the normal subprogram argument processing.
3054 -- Note: for the attributes whose designators are technically keywords,
3055 -- i.e. digits, access, delta, range, the Attribute_Name field contains
3056 -- the corresponding name, even though no identifier is involved.
3058 -- Note: the generated code may contain stream attributes applied to
3059 -- limited types for which no stream routines exist officially. In such
3060 -- case, the result is to use the stream attribute for the underlying
3061 -- full type, or in the case of a protected type, the components
3062 -- (including any disriminants) are merely streamed in order.
3064 -- See Exp_Attr for a complete description of which attributes are
3065 -- passed onto Gigi, and which are handled entirely by the front end.
3067 -- Gigi restriction: For the Pos attribute, the prefix cannot be
3068 -- a non-standard enumeration type or a nonzero/zero semantics
3069 -- boolean type, so the value is simply the stored representation.
3071 -- Gigi requirement: For the Mechanism_Code attribute, if the prefix
3072 -- references a subprogram that is a renaming, then the front end must
3073 -- rewrite the attribute to refer directly to the renamed entity.
3075 -- Note: In generated code, the Address and Unrestricted_Access
3076 -- attributes can be applied to any expression, and the meaning is
3077 -- to create an object containing the value (the object is in the
3078 -- current stack frame), and pass the address of this value. If the
3079 -- Must_Be_Byte_Aligned flag is set, then the object whose address
3080 -- is taken must be on a byte (storage unit) boundary, and if it is
3081 -- not (or may not be), then the generated code must create a copy
3082 -- that is byte aligned, and pass the address of this copy.
3084 -- N_Attribute_Reference
3085 -- Sloc points to apostrophe
3087 -- Attribute_Name (Name2) identifier name from attribute designator
3088 -- Expressions (List1) (set to No_List if no associated expressions)
3089 -- Entity (Node4-Sem) used if the attribute yields a type
3090 -- Associated_Node (Node4-Sem)
3091 -- Do_Overflow_Check (Flag17-Sem)
3092 -- Redundant_Use (Flag13-Sem)
3093 -- Must_Be_Byte_Aligned (Flag14)
3094 -- plus fields for expression
3096 ---------------------------------
3097 -- 4.1.4 Attribute Designator --
3098 ---------------------------------
3100 -- ATTRIBUTE_DESIGNATOR ::=
3101 -- IDENTIFIER [(static_EXPRESSION)]
3102 -- | access | delta | digits
3104 -- There is no explicit node in the tree for an attribute designator.
3105 -- Instead the Attribute_Name and Expressions fields of the parent
3106 -- node (N_Attribute_Reference node) hold the information.
3108 -- Note: if ACCESS, DELTA or DIGITS appears in an attribute
3109 -- designator, then they are treated as identifiers internally
3110 -- rather than the keywords of the same name.
3112 --------------------------------------
3113 -- 4.1.4 Range Attribute Reference --
3114 --------------------------------------
3116 -- RANGE_ATTRIBUTE_REFERENCE ::= PREFIX ' RANGE_ATTRIBUTE_DESIGNATOR
3118 -- A range attribute reference is represented in the tree using the
3119 -- normal N_Attribute_Reference node.
3121 ---------------------------------------
3122 -- 4.1.4 Range Attribute Designator --
3123 ---------------------------------------
3125 -- RANGE_ATTRIBUTE_DESIGNATOR ::= Range [(static_EXPRESSION)]
3127 -- A range attribute designator is represented in the tree using the
3128 -- normal N_Attribute_Reference node.
3130 --------------------
3132 --------------------
3135 -- RECORD_AGGREGATE | EXTENSION_AGGREGATE | ARRAY_AGGREGATE
3137 -----------------------------
3138 -- 4.3.1 Record Aggregate --
3139 -----------------------------
3141 -- RECORD_AGGREGATE ::= (RECORD_COMPONENT_ASSOCIATION_LIST)
3144 -- Sloc points to left parenthesis
3145 -- Expressions (List1) (set to No_List if none or null record case)
3146 -- Component_Associations (List2) (set to No_List if none)
3147 -- Null_Record_Present (Flag17)
3148 -- Aggregate_Bounds (Node3-Sem)
3149 -- Associated_Node (Node4-Sem)
3150 -- Static_Processing_OK (Flag4-Sem)
3151 -- Compile_Time_Known_Aggregate (Flag18-Sem)
3152 -- Expansion_Delayed (Flag11-Sem)
3153 -- Has_Self_Reference (Flag13-Sem)
3154 -- plus fields for expression
3156 -- Note: this structure is used for both record and array aggregates
3157 -- since the two cases are not separable by the parser. The parser
3158 -- makes no attempt to enforce consistency here, so it is up to the
3159 -- semantic phase to make sure that the aggregate is consistent (i.e.
3160 -- that it is not a "half-and-half" case that mixes record and array
3161 -- syntax. In particular, for a record aggregate, the expressions
3162 -- field will be set if there are positional associations.
3164 -- Note: N_Aggregate is not used for all aggregates; in particular,
3165 -- there is a separate node kind for extension aggregates.
3167 -- Note: gigi/gcc can handle array aggregates correctly providing that
3168 -- they are entirely positional, and the array subtype involved has a
3169 -- known at compile time length and is not bit packed, or a convention
3170 -- Fortran array with more than one dimension. If these conditions
3171 -- are not met, then the front end must translate the aggregate into
3172 -- an appropriate set of assignments into a temporary.
3174 -- Note: for the record aggregate case, gigi/gcc can handle all cases
3175 -- of record aggregates, including those for packed, and rep-claused
3176 -- records, and also variant records, providing that there are no
3177 -- variable length fields whose size is not known at runtime, and
3178 -- providing that the aggregate is presented in fully named form.
3180 ----------------------------------------------
3181 -- 4.3.1 Record Component Association List --
3182 ----------------------------------------------
3184 -- RECORD_COMPONENT_ASSOCIATION_LIST ::=
3185 -- RECORD_COMPONENT_ASSOCIATION {, RECORD_COMPONENT_ASSOCIATION}
3188 -- There is no explicit node in the tree for a record component
3189 -- association list. Instead the Null_Record_Present flag is set in
3190 -- the parent node for the NULL RECORD case.
3192 ------------------------------------------------------
3193 -- 4.3.1 Record Component Association (also 4.3.3) --
3194 ------------------------------------------------------
3196 -- RECORD_COMPONENT_ASSOCIATION ::=
3197 -- [COMPONENT_CHOICE_LIST =>] EXPRESSION
3199 -- N_Component_Association
3200 -- Sloc points to first selector name
3202 -- Loop_Actions (List2-Sem)
3203 -- Expression (Node3)
3204 -- Box_Present (Flag15)
3206 -- Note: this structure is used for both record component associations
3207 -- and array component associations, since the two cases aren't always
3208 -- separable by the parser. The choices list may represent either a
3209 -- list of selector names in the record aggregate case, or a list of
3210 -- discrete choices in the array aggregate case or an N_Others_Choice
3211 -- node (which appears as a singleton list). Box_Present gives support
3212 -- to Ada 2005 (AI-287).
3214 -----------------------------------
3215 -- 4.3.1 Commponent Choice List --
3216 -----------------------------------
3218 -- COMPONENT_CHOICE_LIST ::=
3219 -- component_SELECTOR_NAME {| component_SELECTOR_NAME}
3222 -- The entries of a component choice list appear in the Choices list
3223 -- of the associated N_Component_Association, as either selector
3224 -- names, or as an N_Others_Choice node.
3226 --------------------------------
3227 -- 4.3.2 Extension Aggregate --
3228 --------------------------------
3230 -- EXTENSION_AGGREGATE ::=
3231 -- (ANCESTOR_PART with RECORD_COMPONENT_ASSOCIATION_LIST)
3233 -- Note: extension aggregates are not permitted in Ada 83 mode
3235 -- N_Extension_Aggregate
3236 -- Sloc points to left parenthesis
3237 -- Ancestor_Part (Node3)
3238 -- Associated_Node (Node4-Sem)
3239 -- Expressions (List1) (set to No_List if none or null record case)
3240 -- Component_Associations (List2) (set to No_List if none)
3241 -- Null_Record_Present (Flag17)
3242 -- Expansion_Delayed (Flag11-Sem)
3243 -- Has_Self_Reference (Flag13-Sem)
3244 -- plus fields for expression
3246 --------------------------
3247 -- 4.3.2 Ancestor Part --
3248 --------------------------
3250 -- ANCESTOR_PART ::= EXPRESSION | SUBTYPE_MARK
3252 ----------------------------
3253 -- 4.3.3 Array Aggregate --
3254 ----------------------------
3256 -- ARRAY_AGGREGATE ::=
3257 -- POSITIONAL_ARRAY_AGGREGATE | NAMED_ARRAY_AGGREGATE
3259 ---------------------------------------
3260 -- 4.3.3 Positional Array Aggregate --
3261 ---------------------------------------
3263 -- POSITIONAL_ARRAY_AGGREGATE ::=
3264 -- (EXPRESSION, EXPRESSION {, EXPRESSION})
3265 -- | (EXPRESSION {, EXPRESSION}, others => EXPRESSION)
3267 -- See Record_Aggregate (4.3.1) for node structure
3269 ----------------------------------
3270 -- 4.3.3 Named Array Aggregate --
3271 ----------------------------------
3273 -- NAMED_ARRAY_AGGREGATE ::=
3274 -- | (ARRAY_COMPONENT_ASSOCIATION {, ARRAY_COMPONENT_ASSOCIATION})
3276 -- See Record_Aggregate (4.3.1) for node structure
3278 ----------------------------------------
3279 -- 4.3.3 Array Component Association --
3280 ----------------------------------------
3282 -- ARRAY_COMPONENT_ASSOCIATION ::=
3283 -- DISCRETE_CHOICE_LIST => EXPRESSION
3285 -- See Record_Component_Association (4.3.1) for node structure
3287 --------------------------------------------------
3288 -- 4.4 Expression/Relation/Term/Factor/Primary --
3289 --------------------------------------------------
3292 -- RELATION {and RELATION} | RELATION {and then RELATION}
3293 -- | RELATION {or RELATION} | RELATION {or else RELATION}
3294 -- | RELATION {xor RELATION}
3297 -- SIMPLE_EXPRESSION [RELATIONAL_OPERATOR SIMPLE_EXPRESSION]
3298 -- | SIMPLE_EXPRESSION [not] in RANGE
3299 -- | SIMPLE_EXPRESSION [not] in SUBTYPE_MARK
3301 -- SIMPLE_EXPRESSION ::=
3302 -- [UNARY_ADDING_OPERATOR] TERM {BINARY_ADDING_OPERATOR TERM}
3304 -- TERM ::= FACTOR {MULTIPLYING_OPERATOR FACTOR}
3306 -- FACTOR ::= PRIMARY [** PRIMARY] | abs PRIMARY | not PRIMARY
3308 -- No nodes are generated for any of these constructs. Instead, the
3309 -- node for the operator appears directly. When we refer to an
3310 -- expression in this description, we mean any of the possible
3311 -- consistuent components of an expression (e.g. identifier is
3312 -- an example of an expression).
3319 -- NUMERIC_LITERAL | null
3320 -- | STRING_LITERAL | AGGREGATE
3321 -- | NAME | QUALIFIED_EXPRESSION
3322 -- | ALLOCATOR | (EXPRESSION)
3324 -- Usually there is no explicit node in the tree for primary. Instead
3325 -- the constituent (e.g. AGGREGATE) appears directly. There are two
3326 -- exceptions. First, there is an explicit node for a null primary.
3329 -- Sloc points to NULL
3330 -- plus fields for expression
3332 -- Second, the case of (EXPRESSION) is handled specially. Ada requires
3333 -- that the parser keep track of which subexpressions are enclosed
3334 -- in parentheses, and how many levels of parentheses are used. This
3335 -- information is required for optimization purposes, and also for
3336 -- some semantic checks (e.g. (((1))) in a procedure spec does not
3337 -- conform with ((((1)))) in the body).
3339 -- The parentheses are recorded by keeping a Paren_Count field in every
3340 -- subexpression node (it is actually present in all nodes, but only
3341 -- used in subexpression nodes). This count records the number of
3342 -- levels of parentheses. If the number of levels in the source exceeds
3343 -- the maximum accomodated by this count, then the count is simply left
3344 -- at the maximum value. This means that there are some pathalogical
3345 -- cases of failure to detect conformance failures (e.g. an expression
3346 -- with 500 levels of parens will conform with one with 501 levels),
3347 -- but we do not need to lose sleep over this.
3349 -- Historical note: in versions of GNAT prior to 1.75, there was a node
3350 -- type N_Parenthesized_Expression used to accurately record unlimited
3351 -- numbers of levels of parentheses. However, it turned out to be a
3352 -- real nuisance to have to take into account the possible presence of
3353 -- this node during semantic analysis, since basically parentheses have
3354 -- zero relevance to semantic analysis.
3356 -- Note: the level of parentheses always present in things like
3357 -- aggregates does not count, only the parentheses in the primary
3358 -- (EXPRESSION) affect the setting of the Paren_Count field.
3360 -- 2nd Note: the contents of the Expression field must be ignored (i.e.
3361 -- treated as though it were Empty) if No_Initialization is set True.
3363 --------------------------------------
3364 -- 4.5 Short Circuit Control Forms --
3365 --------------------------------------
3368 -- RELATION {and then RELATION} | RELATION {or else RELATION}
3370 -- Gigi restriction: For both these control forms, the operand and
3371 -- result types are always Standard.Boolean. The expander inserts the
3372 -- required conversion operations where needed to ensure this is the
3376 -- Sloc points to AND of AND THEN
3377 -- Left_Opnd (Node2)
3378 -- Right_Opnd (Node3)
3379 -- Actions (List1-Sem)
3380 -- plus fields for expression
3383 -- Sloc points to OR of OR ELSE
3384 -- Left_Opnd (Node2)
3385 -- Right_Opnd (Node3)
3386 -- Actions (List1-Sem)
3387 -- plus fields for expression
3389 -- Note: The Actions field is used to hold actions associated with
3390 -- the right hand operand. These have to be treated specially since
3391 -- they are not unconditionally executed. See Insert_Actions for a
3392 -- more detailed description of how these actions are handled.
3394 ---------------------------
3395 -- 4.5 Membership Tests --
3396 ---------------------------
3399 -- SIMPLE_EXPRESSION [not] in RANGE
3400 -- | SIMPLE_EXPRESSION [not] in SUBTYPE_MARK
3402 -- Note: although the grammar above allows only a range or a
3403 -- subtype mark, the parser in fact will accept any simple
3404 -- expression in place of a subtype mark. This means that the
3405 -- semantic analyzer must be prepared to deal with, and diagnose
3406 -- a simple expression other than a name for the right operand.
3407 -- This simplifies error recovery in the parser.
3410 -- Sloc points to IN
3411 -- Left_Opnd (Node2)
3412 -- Right_Opnd (Node3)
3413 -- plus fields for expression
3416 -- Sloc points to NOT of NOT IN
3417 -- Left_Opnd (Node2)
3418 -- Right_Opnd (Node3)
3419 -- plus fields for expression
3421 --------------------
3423 --------------------
3425 -- LOGICAL_OPERATOR ::= and | or | xor
3427 -- RELATIONAL_OPERATOR ::= = | /= | < | <= | > | >=
3429 -- BINARY_ADDING_OPERATOR ::= + | - | &
3431 -- UNARY_ADDING_OPERATOR ::= + | -
3433 -- MULTIPLYING_OPERATOR ::= * | / | mod | rem
3435 -- HIGHEST_PRECEDENCE_OPERATOR ::= ** | abs | not
3437 -- Sprint syntax if Treat_Fixed_As_Integer is set:
3444 -- Gigi restriction: For * / mod rem with fixed-point operands, Gigi
3445 -- will only be given nodes with the Treat_Fixed_As_Integer flag set.
3446 -- All handling of smalls for multiplication and division is handled
3447 -- by the front end (mod and rem result only from expansion). Gigi
3448 -- thus never needs to worry about small values (for other operators
3449 -- operating on fixed-point, e.g. addition, the small value does not
3450 -- have any semantic effect anyway, these are always integer operations.
3452 -- Gigi restriction: For all operators taking Boolean operands, the
3453 -- type is always Standard.Boolean. The expander inserts the required
3454 -- conversion operations where needed to ensure this is the case.
3457 -- Sloc points to AND
3458 -- Do_Length_Check (Flag4-Sem)
3459 -- plus fields for binary operator
3460 -- plus fields for expression
3463 -- Sloc points to OR
3464 -- Do_Length_Check (Flag4-Sem)
3465 -- plus fields for binary operator
3466 -- plus fields for expression
3469 -- Sloc points to XOR
3470 -- Do_Length_Check (Flag4-Sem)
3471 -- plus fields for binary operator
3472 -- plus fields for expression
3476 -- plus fields for binary operator
3477 -- plus fields for expression
3480 -- Sloc points to /=
3481 -- plus fields for binary operator
3482 -- plus fields for expression
3486 -- plus fields for binary operator
3487 -- plus fields for expression
3490 -- Sloc points to <=
3491 -- plus fields for binary operator
3492 -- plus fields for expression
3496 -- plus fields for binary operator
3497 -- plus fields for expression
3500 -- Sloc points to >=
3501 -- plus fields for binary operator
3502 -- plus fields for expression
3505 -- Sloc points to + (binary)
3506 -- plus fields for binary operator
3507 -- plus fields for expression
3510 -- Sloc points to - (binary)
3511 -- plus fields for binary operator
3512 -- plus fields for expression
3516 -- Is_Component_Left_Opnd (Flag13-Sem)
3517 -- Is_Component_Right_Opnd (Flag14-Sem)
3518 -- plus fields for binary operator
3519 -- plus fields for expression
3523 -- Treat_Fixed_As_Integer (Flag14-Sem)
3524 -- Rounded_Result (Flag18-Sem)
3525 -- plus fields for binary operator
3526 -- plus fields for expression
3530 -- Treat_Fixed_As_Integer (Flag14-Sem)
3531 -- Do_Division_Check (Flag13-Sem)
3532 -- Rounded_Result (Flag18-Sem)
3533 -- plus fields for binary operator
3534 -- plus fields for expression
3537 -- Sloc points to MOD
3538 -- Treat_Fixed_As_Integer (Flag14-Sem)
3539 -- Do_Division_Check (Flag13-Sem)
3540 -- plus fields for binary operator
3541 -- plus fields for expression
3544 -- Sloc points to REM
3545 -- Treat_Fixed_As_Integer (Flag14-Sem)
3546 -- Do_Division_Check (Flag13-Sem)
3547 -- plus fields for binary operator
3548 -- plus fields for expression
3551 -- Is_Power_Of_2_For_Shift (Flag13-Sem)
3552 -- Sloc points to **
3553 -- plus fields for binary operator
3554 -- plus fields for expression
3557 -- Sloc points to + (unary)
3558 -- plus fields for unary operator
3559 -- plus fields for expression
3562 -- Sloc points to - (unary)
3563 -- plus fields for unary operator
3564 -- plus fields for expression
3567 -- Sloc points to ABS
3568 -- plus fields for unary operator
3569 -- plus fields for expression
3572 -- Sloc points to NOT
3573 -- plus fields for unary operator
3574 -- plus fields for expression
3576 -- See also shift operators in section B.2
3578 -- Note on fixed-point operations passed to Gigi: For adding operators,
3579 -- the semantics is to treat these simply as integer operations, with
3580 -- the small values being ignored (the bounds are already stored in
3581 -- units of small, so that constraint checking works as usual). For the
3582 -- case of multiply/divide/rem/mod operations, Gigi will only see fixed
3583 -- point operands if the Treat_Fixed_As_Integer flag is set and will
3584 -- thus treat these nodes in identical manner, ignoring small values.
3586 --------------------------
3587 -- 4.6 Type Conversion --
3588 --------------------------
3590 -- TYPE_CONVERSION ::=
3591 -- SUBTYPE_MARK (EXPRESSION) | SUBTYPE_MARK (NAME)
3593 -- In the (NAME) case, the name is stored as the expression
3595 -- Note: the parser never generates a type conversion node, since it
3596 -- looks like an indexed component which is generated by preference.
3597 -- The semantic pass must correct this misidentification.
3599 -- Gigi handles conversions that involve no change in the root type,
3600 -- and also all conversions from integer to floating-point types.
3601 -- Conversions from floating-point to integer are only handled in
3602 -- the case where Float_Truncate flag set. Other conversions from
3603 -- floating-point to integer (involving rounding) and all conversions
3604 -- involving fixed-point types are handled by the expander.
3606 -- Sprint syntax if Float_Truncate set: X^(Y)
3607 -- Sprint syntax if Conversion_OK set X?(Y)
3608 -- Sprint syntax if both flags set X?^(Y)
3610 -- Note: If either the operand or result type is fixed-point, Gigi will
3611 -- only see a type conversion node with Conversion_OK set. The front end
3612 -- takes care of all handling of small's for fixed-point conversions.
3614 -- N_Type_Conversion
3615 -- Sloc points to first token of subtype mark
3616 -- Subtype_Mark (Node4)
3617 -- Expression (Node3)
3618 -- Do_Tag_Check (Flag13-Sem)
3619 -- Do_Length_Check (Flag4-Sem)
3620 -- Do_Overflow_Check (Flag17-Sem)
3621 -- Float_Truncate (Flag11-Sem)
3622 -- Rounded_Result (Flag18-Sem)
3623 -- Conversion_OK (Flag14-Sem)
3624 -- plus fields for expression
3626 -- Note: if a range check is required, then the Do_Range_Check flag
3627 -- is set in the Expression with the check being done against the
3628 -- target type range (after the base type conversion, if any).
3630 -------------------------------
3631 -- 4.7 Qualified Expression --
3632 -------------------------------
3634 -- QUALIFIED_EXPRESSION ::=
3635 -- SUBTYPE_MARK ' (EXPRESSION) | SUBTYPE_MARK ' AGGREGATE
3637 -- Note: the parentheses in the (EXPRESSION) case are deemed to enclose
3638 -- the expression, so the Expression field of this node always points
3639 -- to a parenthesized expression in this case (i.e. Paren_Count will
3640 -- always be non-zero for the referenced expression if it is not an
3643 -- N_Qualified_Expression
3644 -- Sloc points to apostrophe
3645 -- Subtype_Mark (Node4)
3646 -- Expression (Node3) expression or aggregate
3647 -- plus fields for expression
3649 --------------------
3651 --------------------
3654 -- new [NULL_EXCLUSION] SUBTYPE_INDICATION | new QUALIFIED_EXPRESSION
3656 -- Sprint syntax (when storage pool present)
3657 -- new xxx (storage_pool = pool)
3660 -- Sloc points to NEW
3661 -- Expression (Node3) subtype indication or qualified expression
3662 -- Null_Exclusion_Present (Flag11)
3663 -- Storage_Pool (Node1-Sem)
3664 -- Procedure_To_Call (Node2-Sem)
3665 -- Coextensions (Elist4-Sem)
3666 -- No_Initialization (Flag13-Sem)
3667 -- Is_Static_Coextension (Flag14-Sem)
3668 -- Do_Storage_Check (Flag17-Sem)
3669 -- Is_Coextension (Flag18-Sem)
3670 -- plus fields for expression
3672 ---------------------------------
3673 -- 5.1 Sequence Of Statements --
3674 ---------------------------------
3676 -- SEQUENCE_OF_STATEMENTS ::= STATEMENT {STATEMENT}
3678 -- Note: Although the parser will not accept a declaration as a
3679 -- statement, the semantic analyzer may insert declarations (e.g.
3680 -- declarations of implicit types needed for execution of other
3681 -- statements) into a sequence of statements, so the code genmerator
3682 -- should be prepared to accept a declaration where a statement is
3683 -- expected. Note also that pragmas can appear as statements.
3685 --------------------
3687 --------------------
3690 -- {LABEL} SIMPLE_STATEMENT | {LABEL} COMPOUND_STATEMENT
3692 -- There is no explicit node in the tree for a statement. Instead, the
3693 -- individual statement appears directly. Labels are treated as a
3694 -- kind of statement, i.e. they are linked into a statement list at
3695 -- the point they appear, so the labeled statement appears following
3696 -- the label or labels in the statement list.
3698 ---------------------------
3699 -- 5.1 Simple Statement --
3700 ---------------------------
3702 -- SIMPLE_STATEMENT ::= NULL_STATEMENT
3703 -- | ASSIGNMENT_STATEMENT | EXIT_STATEMENT
3704 -- | GOTO_STATEMENT | PROCEDURE_CALL_STATEMENT
3705 -- | SIMPLE_RETURN_STATEMENT | ENTRY_CALL_STATEMENT
3706 -- | REQUEUE_STATEMENT | DELAY_STATEMENT
3707 -- | ABORT_STATEMENT | RAISE_STATEMENT
3710 -----------------------------
3711 -- 5.1 Compound Statement --
3712 -----------------------------
3714 -- COMPOUND_STATEMENT ::=
3715 -- IF_STATEMENT | CASE_STATEMENT
3716 -- | LOOP_STATEMENT | BLOCK_STATEMENT
3717 -- | EXTENDED_RETURN_STATEMENT
3718 -- | ACCEPT_STATEMENT | SELECT_STATEMENT
3720 -------------------------
3721 -- 5.1 Null Statement --
3722 -------------------------
3724 -- NULL_STATEMENT ::= null;
3727 -- Sloc points to NULL
3733 -- LABEL ::= <<label_STATEMENT_IDENTIFIER>>
3735 -- Note that the occurrence of a label is not a defining identifier,
3736 -- but rather a referencing occurrence. The defining occurrence is
3737 -- in the implicit label declaration which occurs in the innermost
3741 -- Sloc points to <<
3742 -- Identifier (Node1) direct name of statement identifier
3743 -- Exception_Junk (Flag8-Sem)
3745 -------------------------------
3746 -- 5.1 Statement Identifier --
3747 -------------------------------
3749 -- STATEMENT_INDENTIFIER ::= DIRECT_NAME
3751 -- The IDENTIFIER of a STATEMENT_IDENTIFIER shall be an identifier
3752 -- (not an OPERATOR_SYMBOL)
3754 -------------------------------
3755 -- 5.2 Assignment Statement --
3756 -------------------------------
3758 -- ASSIGNMENT_STATEMENT ::=
3759 -- variable_NAME := EXPRESSION;
3761 -- N_Assignment_Statement
3762 -- Sloc points to :=
3764 -- Expression (Node3)
3765 -- Do_Tag_Check (Flag13-Sem)
3766 -- Do_Length_Check (Flag4-Sem)
3767 -- Forwards_OK (Flag5-Sem)
3768 -- Backwards_OK (Flag6-Sem)
3769 -- No_Ctrl_Actions (Flag7-Sem)
3771 -- Note: if a range check is required, then the Do_Range_Check flag
3772 -- is set in the Expression (right hand side), with the check being
3773 -- done against the type of the Name (left hand side).
3775 -- Note: the back end places some restrictions on the form of the
3776 -- Expression field. If the object being assigned to is Atomic, then
3777 -- the Expression may not have the form of an aggregate (since this
3778 -- might cause the back end to generate separate assignments). It
3779 -- also cannot be a reference to an object marked as a true constant
3780 -- (Is_True_Constant flag set), where the object is itself initalized
3781 -- with an aggregate. If necessary the front end must generate an
3782 -- extra temporary (with Is_True_Constant set False), and initialize
3783 -- this temporary as required (the temporary itself is not atomic).
3785 -----------------------
3786 -- 5.3 If Statement --
3787 -----------------------
3790 -- if CONDITION then
3791 -- SEQUENCE_OF_STATEMENTS
3792 -- {elsif CONDITION then
3793 -- SEQUENCE_OF_STATEMENTS}
3795 -- SEQUENCE_OF_STATEMENTS]
3798 -- Gigi restriction: This expander ensures that the type of the
3799 -- Condition fields is always Standard.Boolean, even if the type
3800 -- in the source is some non-standard boolean type.
3803 -- Sloc points to IF
3804 -- Condition (Node1)
3805 -- Then_Statements (List2)
3806 -- Elsif_Parts (List3) (set to No_List if none present)
3807 -- Else_Statements (List4) (set to No_List if no else part present)
3808 -- End_Span (Uint5) (set to No_Uint if expander generated)
3811 -- Sloc points to ELSIF
3812 -- Condition (Node1)
3813 -- Then_Statements (List2)
3814 -- Condition_Actions (List3-Sem)
3816 --------------------
3818 --------------------
3820 -- CONDITION ::= boolean_EXPRESSION
3822 -------------------------
3823 -- 5.4 Case Statement --
3824 -------------------------
3826 -- CASE_STATEMENT ::=
3827 -- case EXPRESSION is
3828 -- CASE_STATEMENT_ALTERNATIVE
3829 -- {CASE_STATEMENT_ALTERNATIVE}
3832 -- Note: the Alternatives can contain pragmas. These only occur at
3833 -- the start of the list, since any pragmas occurring after the first
3834 -- alternative are absorbed into the corresponding statement sequence.
3837 -- Sloc points to CASE
3838 -- Expression (Node3)
3839 -- Alternatives (List4)
3840 -- End_Span (Uint5) (set to No_Uint if expander generated)
3842 -------------------------------------
3843 -- 5.4 Case Statement Alternative --
3844 -------------------------------------
3846 -- CASE_STATEMENT_ALTERNATIVE ::=
3847 -- when DISCRETE_CHOICE_LIST =>
3848 -- SEQUENCE_OF_STATEMENTS
3850 -- N_Case_Statement_Alternative
3851 -- Sloc points to WHEN
3852 -- Discrete_Choices (List4)
3853 -- Statements (List3)
3855 -------------------------
3856 -- 5.5 Loop Statement --
3857 -------------------------
3859 -- LOOP_STATEMENT ::=
3860 -- [loop_STATEMENT_IDENTIFIER :]
3861 -- [ITERATION_SCHEME] loop
3862 -- SEQUENCE_OF_STATEMENTS
3863 -- end loop [loop_IDENTIFIER];
3865 -- Note: The occurrence of a loop label is not a defining identifier
3866 -- but rather a referencing occurrence. The defining occurrence is in
3867 -- the implicit label declaration which occurs in the innermost
3870 -- Note: there is always a loop statement identifier present in
3871 -- the tree, even if none was given in the source. In the case where
3872 -- no loop identifier is given in the source, the parser creates
3873 -- a name of the form _Loop_n, where n is a decimal integer (the
3874 -- two underlines ensure that the loop names created in this manner
3875 -- do not conflict with any user defined identifiers), and the flag
3876 -- Has_Created_Identifier is set to True. The only exception to the
3877 -- rule that all loop statement nodes have identifiers occurs for
3878 -- loops constructed by the expander, and the semantic analyzer will
3879 -- create and supply dummy loop identifiers in these cases.
3882 -- Sloc points to LOOP
3883 -- Identifier (Node1) loop identifier (set to Empty if no identifier)
3884 -- Iteration_Scheme (Node2) (set to Empty if no iteration scheme)
3885 -- Statements (List3)
3886 -- End_Label (Node4)
3887 -- Has_Created_Identifier (Flag15)
3888 -- Is_Null_Loop (Flag16)
3890 --------------------------
3891 -- 5.5 Iteration Scheme --
3892 --------------------------
3894 -- ITERATION_SCHEME ::=
3895 -- while CONDITION | for LOOP_PARAMETER_SPECIFICATION
3897 -- Gigi restriction: This expander ensures that the type of the
3898 -- Condition field is always Standard.Boolean, even if the type
3899 -- in the source is some non-standard boolean type.
3901 -- N_Iteration_Scheme
3902 -- Sloc points to WHILE or FOR
3903 -- Condition (Node1) (set to Empty if FOR case)
3904 -- Condition_Actions (List3-Sem)
3905 -- Loop_Parameter_Specification (Node4) (set to Empty if WHILE case)
3907 ---------------------------------------
3908 -- 5.5 Loop parameter specification --
3909 ---------------------------------------
3911 -- LOOP_PARAMETER_SPECIFICATION ::=
3912 -- DEFINING_IDENTIFIER in [reverse] DISCRETE_SUBTYPE_DEFINITION
3914 -- N_Loop_Parameter_Specification
3915 -- Sloc points to first identifier
3916 -- Defining_Identifier (Node1)
3917 -- Reverse_Present (Flag15)
3918 -- Discrete_Subtype_Definition (Node4)
3920 --------------------------
3921 -- 5.6 Block Statement --
3922 --------------------------
3924 -- BLOCK_STATEMENT ::=
3925 -- [block_STATEMENT_IDENTIFIER:]
3927 -- DECLARATIVE_PART]
3929 -- HANDLED_SEQUENCE_OF_STATEMENTS
3930 -- end [block_IDENTIFIER];
3932 -- Note that the occurrence of a block identifier is not a defining
3933 -- identifier, but rather a referencing occurrence. The defining
3934 -- occurrence is an E_Block entity declared by the implicit label
3935 -- declaration which occurs in the innermost enclosing block statement
3936 -- or body; the block identifier denotes that E_Block.
3938 -- For block statements that come from source code, there is always a
3939 -- block statement identifier present in the tree, denoting an
3940 -- E_Block. In the case where no block identifier is given in the
3941 -- source, the parser creates a name of the form B_n, where n is a
3942 -- decimal integer, and the flag Has_Created_Identifier is set to
3943 -- True. Blocks constructed by the expander usually have no identifier,
3944 -- and no corresponding entity.
3946 -- Note: the block statement created for an extended return statement
3947 -- has an entity, and this entity is an E_Return_Statement, rather than
3948 -- the usual E_Block.
3950 -- Note: Exception_Junk is set for the wrapping blocks created during
3951 -- local raise optimization (Exp_Ch11.Expand_Local_Exception_Handlers).
3953 -- N_Block_Statement
3954 -- Sloc points to DECLARE or BEGIN
3955 -- Identifier (Node1) block direct name (set to Empty if not present)
3956 -- Declarations (List2) (set to No_List if no DECLARE part)
3957 -- Handled_Statement_Sequence (Node4)
3958 -- Is_Task_Master (Flag5-Sem)
3959 -- Activation_Chain_Entity (Node3-Sem)
3960 -- Has_Created_Identifier (Flag15)
3961 -- Is_Task_Allocation_Block (Flag6)
3962 -- Is_Asynchronous_Call_Block (Flag7)
3963 -- Exception_Junk (Flag8-Sem)
3965 -------------------------
3966 -- 5.7 Exit Statement --
3967 -------------------------
3969 -- EXIT_STATEMENT ::= exit [loop_NAME] [when CONDITION];
3971 -- Gigi restriction: This expander ensures that the type of the
3972 -- Condition field is always Standard.Boolean, even if the type
3973 -- in the source is some non-standard boolean type.
3976 -- Sloc points to EXIT
3977 -- Name (Node2) (set to Empty if no loop name present)
3978 -- Condition (Node1) (set to Empty if no when part present)
3980 -------------------------
3981 -- 5.9 Goto Statement --
3982 -------------------------
3984 -- GOTO_STATEMENT ::= goto label_NAME;
3987 -- Sloc points to GOTO
3989 -- Exception_Junk (Flag8-Sem)
3991 ---------------------------------
3992 -- 6.1 Subprogram Declaration --
3993 ---------------------------------
3995 -- SUBPROGRAM_DECLARATION ::= SUBPROGRAM_SPECIFICATION;
3997 -- N_Subprogram_Declaration
3998 -- Sloc points to FUNCTION or PROCEDURE
3999 -- Specification (Node1)
4000 -- Body_To_Inline (Node3-Sem)
4001 -- Corresponding_Body (Node5-Sem)
4002 -- Parent_Spec (Node4-Sem)
4004 ------------------------------------------
4005 -- 6.1 Abstract Subprogram Declaration --
4006 ------------------------------------------
4008 -- ABSTRACT_SUBPROGRAM_DECLARATION ::=
4009 -- SUBPROGRAM_SPECIFICATION is abstract;
4011 -- N_Abstract_Subprogram_Declaration
4012 -- Sloc points to ABSTRACT
4013 -- Specification (Node1)
4015 -----------------------------------
4016 -- 6.1 Subprogram Specification --
4017 -----------------------------------
4019 -- SUBPROGRAM_SPECIFICATION ::=
4020 -- [[not] overriding]
4021 -- procedure DEFINING_PROGRAM_UNIT_NAME PARAMETER_PROFILE
4022 -- | [[not] overriding]
4023 -- function DEFINING_DESIGNATOR PARAMETER_AND_RESULT_PROFILE
4025 -- Note: there are no separate nodes for the profiles, instead the
4026 -- information appears directly in the following nodes.
4028 -- N_Function_Specification
4029 -- Sloc points to FUNCTION
4030 -- Defining_Unit_Name (Node1) (the designator)
4031 -- Elaboration_Boolean (Node2-Sem)
4032 -- Parameter_Specifications (List3) (set to No_List if no formal part)
4033 -- Null_Exclusion_Present (Flag11)
4034 -- Result_Definition (Node4) for result subtype
4035 -- Generic_Parent (Node5-Sem)
4036 -- Must_Override (Flag14) set if overriding indicator present
4037 -- Must_Not_Override (Flag15) set if not_overriding indicator present
4039 -- N_Procedure_Specification
4040 -- Sloc points to PROCEDURE
4041 -- Defining_Unit_Name (Node1)
4042 -- Elaboration_Boolean (Node2-Sem)
4043 -- Parameter_Specifications (List3) (set to No_List if no formal part)
4044 -- Generic_Parent (Node5-Sem)
4045 -- Null_Present (Flag13) set for null procedure case (Ada 2005 feature)
4046 -- Must_Override (Flag14) set if overriding indicator present
4047 -- Must_Not_Override (Flag15) set if not_overriding indicator present
4049 -- Note: overriding indicator is an Ada 2005 feature
4051 ---------------------
4052 -- 6.1 Designator --
4053 ---------------------
4056 -- [PARENT_UNIT_NAME .] IDENTIFIER | OPERATOR_SYMBOL
4058 -- Designators that are simply identifiers or operator symbols appear
4059 -- directly in the tree in this form. The following node is used only
4060 -- in the case where the designator has a parent unit name component.
4063 -- Sloc points to period
4064 -- Name (Node2) holds the parent unit name. Note that this is always
4065 -- non-Empty, since this node is only used for the case where a
4066 -- parent library unit package name is present.
4067 -- Identifier (Node1)
4069 -- Note that the identifier can also be an operator symbol here
4071 ------------------------------
4072 -- 6.1 Defining Designator --
4073 ------------------------------
4075 -- DEFINING_DESIGNATOR ::=
4076 -- DEFINING_PROGRAM_UNIT_NAME | DEFINING_OPERATOR_SYMBOL
4078 -------------------------------------
4079 -- 6.1 Defining Program Unit Name --
4080 -------------------------------------
4082 -- DEFINING_PROGRAM_UNIT_NAME ::=
4083 -- [PARENT_UNIT_NAME .] DEFINING_IDENTIFIER
4085 -- The parent unit name is present only in the case of a child unit
4086 -- name (permissible only for Ada 95 for a library level unit, i.e.
4087 -- a unit at scope level one). If no such name is present, the defining
4088 -- program unit name is represented simply as the defining identifier.
4089 -- In the child unit case, the following node is used to represent the
4092 -- N_Defining_Program_Unit_Name
4093 -- Sloc points to period
4094 -- Name (Node2) holds the parent unit name. Note that this is always
4095 -- non-Empty, since this node is only used for the case where a
4096 -- parent unit name is present.
4097 -- Defining_Identifier (Node1)
4099 --------------------------
4100 -- 6.1 Operator Symbol --
4101 --------------------------
4103 -- OPERATOR_SYMBOL ::= STRING_LITERAL
4105 -- Note: the fields of the N_Operator_Symbol node are laid out to
4106 -- match the corresponding fields of an N_Character_Literal node. This
4107 -- allows easy conversion of the operator symbol node into a character
4108 -- literal node in the case where a string constant of the form of an
4109 -- operator symbol is scanned out as such, but turns out semantically
4110 -- to be a string literal that is not an operator. For details see
4111 -- Sinfo.CN.Change_Operator_Symbol_To_String_Literal.
4113 -- N_Operator_Symbol
4114 -- Sloc points to literal
4115 -- Chars (Name1) contains the Name_Id for the operator symbol
4116 -- Strval (Str3) Id of string value. This is used if the operator
4117 -- symbol turns out to be a normal string after all.
4118 -- Entity (Node4-Sem)
4119 -- Associated_Node (Node4-Sem)
4120 -- Has_Private_View (Flag11-Sem) set in generic units.
4121 -- Etype (Node5-Sem)
4123 -- Note: the Strval field may be set to No_String for generated
4124 -- operator symbols that are known not to be string literals
4127 -----------------------------------
4128 -- 6.1 Defining Operator Symbol --
4129 -----------------------------------
4131 -- DEFINING_OPERATOR_SYMBOL ::= OPERATOR_SYMBOL
4133 -- A defining operator symbol is an entity, which has additional
4134 -- fields depending on the setting of the Ekind field. These
4135 -- additional fields are defined (and access subprograms declared)
4136 -- in package Einfo.
4138 -- Note: N_Defining_Operator_Symbol is an extended node whose fields
4139 -- are deliberately layed out to match the layout of fields in an
4140 -- ordinary N_Operator_Symbol node allowing for easy alteration of
4141 -- an operator symbol node into a defining operator symbol node.
4142 -- See Sinfo.CN.Change_Operator_Symbol_To_Defining_Operator_Symbol
4143 -- for further details.
4145 -- N_Defining_Operator_Symbol
4146 -- Sloc points to literal
4147 -- Chars (Name1) contains the Name_Id for the operator symbol
4148 -- Next_Entity (Node2-Sem)
4149 -- Scope (Node3-Sem)
4150 -- Etype (Node5-Sem)
4152 ----------------------------
4153 -- 6.1 Parameter Profile --
4154 ----------------------------
4156 -- PARAMETER_PROFILE ::= [FORMAL_PART]
4158 ---------------------------------------
4159 -- 6.1 Parameter and Result Profile --
4160 ---------------------------------------
4162 -- PARAMETER_AND_RESULT_PROFILE ::=
4163 -- [FORMAL_PART] return [NULL_EXCLUSION] SUBTYPE_MARK
4164 -- | [FORMAL_PART] return ACCESS_DEFINITION
4166 -- There is no explicit node in the tree for a parameter and result
4167 -- profile. Instead the information appears directly in the parent.
4169 ----------------------
4170 -- 6.1 Formal part --
4171 ----------------------
4174 -- (PARAMETER_SPECIFICATION {; PARAMETER_SPECIFICATION})
4176 ----------------------------------
4177 -- 6.1 Parameter specification --
4178 ----------------------------------
4180 -- PARAMETER_SPECIFICATION ::=
4181 -- DEFINING_IDENTIFIER_LIST : MODE [NULL_EXCLUSION] SUBTYPE_MARK
4182 -- [:= DEFAULT_EXPRESSION]
4183 -- | DEFINING_IDENTIFIER_LIST : ACCESS_DEFINITION
4184 -- [:= DEFAULT_EXPRESSION]
4186 -- Although the syntax allows multiple identifiers in the list, the
4187 -- semantics is as though successive specifications were given with
4188 -- identical type definition and expression components. To simplify
4189 -- semantic processing, the parser represents a multiple declaration
4190 -- case as a sequence of single Specifications, using the More_Ids and
4191 -- Prev_Ids flags to preserve the original source form as described
4192 -- in the section on "Handling of Defining Identifier Lists".
4194 -- N_Parameter_Specification
4195 -- Sloc points to first identifier
4196 -- Defining_Identifier (Node1)
4197 -- In_Present (Flag15)
4198 -- Out_Present (Flag17)
4199 -- Null_Exclusion_Present (Flag11)
4200 -- Parameter_Type (Node2) subtype mark or access definition
4201 -- Expression (Node3) (set to Empty if no default expression present)
4202 -- Do_Accessibility_Check (Flag13-Sem)
4203 -- More_Ids (Flag5) (set to False if no more identifiers in list)
4204 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
4205 -- Default_Expression (Node5-Sem)
4211 -- MODE ::= [in] | in out | out
4213 -- There is no explicit node in the tree for the Mode. Instead the
4214 -- In_Present and Out_Present flags are set in the parent node to
4215 -- record the presence of keywords specifying the mode.
4217 --------------------------
4218 -- 6.3 Subprogram Body --
4219 --------------------------
4221 -- SUBPROGRAM_BODY ::=
4222 -- SUBPROGRAM_SPECIFICATION is
4225 -- HANDLED_SEQUENCE_OF_STATEMENTS
4226 -- end [DESIGNATOR];
4228 -- N_Subprogram_Body
4229 -- Sloc points to FUNCTION or PROCEDURE
4230 -- Specification (Node1)
4231 -- Declarations (List2)
4232 -- Handled_Statement_Sequence (Node4)
4233 -- Activation_Chain_Entity (Node3-Sem)
4234 -- Corresponding_Spec (Node5-Sem)
4235 -- Acts_As_Spec (Flag4-Sem)
4236 -- Bad_Is_Detected (Flag15) used only by parser
4237 -- Do_Storage_Check (Flag17-Sem)
4238 -- Has_Priority_Pragma (Flag6-Sem)
4239 -- Is_Protected_Subprogram_Body (Flag7-Sem)
4240 -- Is_Entry_Barrier_Function (Flag8-Sem)
4241 -- Is_Task_Master (Flag5-Sem)
4242 -- Was_Originally_Stub (Flag13-Sem)
4244 -----------------------------------
4245 -- 6.4 Procedure Call Statement --
4246 -----------------------------------
4248 -- PROCEDURE_CALL_STATEMENT ::=
4249 -- procedure_NAME; | procedure_PREFIX ACTUAL_PARAMETER_PART;
4251 -- Note: the reason that a procedure call has expression fields is
4252 -- that it semantically resembles an expression, e.g. overloading is
4253 -- allowed and a type is concocted for semantic processing purposes.
4254 -- Certain of these fields, such as Parens are not relevant, but it
4255 -- is easier to just supply all of them together!
4257 -- N_Procedure_Call_Statement
4258 -- Sloc points to first token of name or prefix
4259 -- Name (Node2) stores name or prefix
4260 -- Parameter_Associations (List3) (set to No_List if no
4261 -- actual parameter part)
4262 -- First_Named_Actual (Node4-Sem)
4263 -- Controlling_Argument (Node1-Sem) (set to Empty if not dispatching)
4264 -- Do_Tag_Check (Flag13-Sem)
4265 -- No_Elaboration_Check (Flag14-Sem)
4266 -- Parameter_List_Truncated (Flag17-Sem)
4267 -- ABE_Is_Certain (Flag18-Sem)
4268 -- plus fields for expression
4270 -- If any IN parameter requires a range check, then the corresponding
4271 -- argument expression has the Do_Range_Check flag set, and the range
4272 -- check is done against the formal type. Note that this argument
4273 -- expression may appear directly in the Parameter_Associations list,
4274 -- or may be a descendent of an N_Parameter_Association node that
4275 -- appears in this list.
4277 ------------------------
4278 -- 6.4 Function Call --
4279 ------------------------
4281 -- FUNCTION_CALL ::=
4282 -- function_NAME | function_PREFIX ACTUAL_PARAMETER_PART
4284 -- Note: the parser may generate an indexed component node or simply
4285 -- a name node instead of a function call node. The semantic pass must
4286 -- correct this misidentification.
4289 -- Sloc points to first token of name or prefix
4290 -- Name (Node2) stores name or prefix
4291 -- Parameter_Associations (List3) (set to No_List if no
4292 -- actual parameter part)
4293 -- First_Named_Actual (Node4-Sem)
4294 -- Controlling_Argument (Node1-Sem) (set to Empty if not dispatching)
4295 -- Do_Tag_Check (Flag13-Sem)
4296 -- No_Elaboration_Check (Flag14-Sem)
4297 -- Parameter_List_Truncated (Flag17-Sem)
4298 -- ABE_Is_Certain (Flag18-Sem)
4299 -- plus fields for expression
4301 --------------------------------
4302 -- 6.4 Actual Parameter Part --
4303 --------------------------------
4305 -- ACTUAL_PARAMETER_PART ::=
4306 -- (PARAMETER_ASSOCIATION {,PARAMETER_ASSOCIATION})
4308 --------------------------------
4309 -- 6.4 Parameter Association --
4310 --------------------------------
4312 -- PARAMETER_ASSOCIATION ::=
4313 -- [formal_parameter_SELECTOR_NAME =>] EXPLICIT_ACTUAL_PARAMETER
4315 -- Note: the N_Parameter_Association node is built only if a formal
4316 -- parameter selector name is present, otherwise the parameter
4317 -- association appears in the tree simply as the node for the
4318 -- explicit actual parameter.
4320 -- N_Parameter_Association
4321 -- Sloc points to formal parameter
4322 -- Selector_Name (Node2) (always non-Empty)
4323 -- Explicit_Actual_Parameter (Node3)
4324 -- Next_Named_Actual (Node4-Sem)
4326 ---------------------------
4327 -- 6.4 Actual Parameter --
4328 ---------------------------
4330 -- EXPLICIT_ACTUAL_PARAMETER ::= EXPRESSION | variable_NAME
4332 ---------------------------
4333 -- 6.5 Return Statement --
4334 ---------------------------
4336 -- RETURN_STATEMENT ::= return [EXPRESSION]; -- Ada 95
4338 -- In Ada 2005, we have:
4340 -- SIMPLE_RETURN_STATEMENT ::= return [EXPRESSION];
4342 -- EXTENDED_RETURN_STATEMENT ::=
4343 -- return DEFINING_IDENTIFIER : [aliased] RETURN_SUBTYPE_INDICATION
4344 -- [:= EXPRESSION] [do
4345 -- HANDLED_SEQUENCE_OF_STATEMENTS
4348 -- RETURN_SUBTYPE_INDICATION ::= SUBTYPE_INDICATION | ACCESS_DEFINITION
4350 -- So in Ada 2005, RETURN_STATEMENT is no longer a nonterminal
4352 -- N_Return_Statement
4353 -- Sloc points to RETURN
4354 -- Return_Statement_Entity (Node5-Sem)
4355 -- Expression (Node3) (set to Empty if no expression present)
4356 -- Storage_Pool (Node1-Sem)
4357 -- Procedure_To_Call (Node2-Sem)
4358 -- Do_Tag_Check (Flag13-Sem)
4359 -- By_Ref (Flag5-Sem)
4360 -- Comes_From_Extended_Return_Statement (Flag18-Sem)
4362 -- ???N_Return_Statement represents a simple_return_statement,
4363 -- and should be renamed to N_Simple_Return_Statement.
4365 -- Note: Return_Statement_Entity points to an E_Return_Statement
4367 -- If a range check is required, then Do_Range_Check is set on the
4368 -- Expression. The check is against the return subtype of the function.
4370 -- N_Extended_Return_Statement
4371 -- Sloc points to RETURN
4372 -- Return_Statement_Entity (Node5-Sem)
4373 -- Return_Object_Declarations (List3)
4374 -- Handled_Statement_Sequence (Node4) (set to Empty if not present)
4375 -- Storage_Pool (Node1-Sem)
4376 -- Procedure_To_Call (Node2-Sem)
4377 -- Do_Tag_Check (Flag13-Sem)
4378 -- By_Ref (Flag5-Sem)
4380 -- Note: Return_Statement_Entity points to an E_Return_Statement.
4381 -- Note that Return_Object_Declarations is a list containing the
4382 -- N_Object_Declaration -- see comment on this field above.
4383 -- The declared object will have Is_Return_Object = True.
4384 -- There is no such syntactic category as return_object_declaration
4385 -- in the RM. Return_Object_Declarations represents this portion of
4386 -- the syntax for EXTENDED_RETURN_STATEMENT:
4387 -- DEFINING_IDENTIFIER : [aliased] RETURN_SUBTYPE_INDICATION
4390 -- There are two entities associated with an extended_return_statement:
4391 -- the Return_Statement_Entity represents the statement itself, and the
4392 -- Defining_Identifier of the Object_Declaration in
4393 -- Return_Object_Declarations represents the object being
4394 -- returned. N_Return_Statement has only the former.
4396 ------------------------------
4397 -- 7.1 Package Declaration --
4398 ------------------------------
4400 -- PACKAGE_DECLARATION ::= PACKAGE_SPECIFICATION;
4402 -- Note: the activation chain entity for a package spec is used for
4403 -- all tasks declared in the package spec, or in the package body.
4405 -- N_Package_Declaration
4406 -- Sloc points to PACKAGE
4407 -- Specification (Node1)
4408 -- Corresponding_Body (Node5-Sem)
4409 -- Parent_Spec (Node4-Sem)
4410 -- Activation_Chain_Entity (Node3-Sem)
4412 --------------------------------
4413 -- 7.1 Package Specification --
4414 --------------------------------
4416 -- PACKAGE_SPECIFICATION ::=
4417 -- package DEFINING_PROGRAM_UNIT_NAME is
4418 -- {BASIC_DECLARATIVE_ITEM}
4420 -- {BASIC_DECLARATIVE_ITEM}]
4421 -- end [[PARENT_UNIT_NAME .] IDENTIFIER]
4423 -- N_Package_Specification
4424 -- Sloc points to PACKAGE
4425 -- Defining_Unit_Name (Node1)
4426 -- Visible_Declarations (List2)
4427 -- Private_Declarations (List3) (set to No_List if no private
4429 -- End_Label (Node4)
4430 -- Generic_Parent (Node5-Sem)
4431 -- Limited_View_Installed (Flag18-Sem)
4433 -----------------------
4434 -- 7.1 Package Body --
4435 -----------------------
4438 -- package body DEFINING_PROGRAM_UNIT_NAME is
4441 -- HANDLED_SEQUENCE_OF_STATEMENTS]
4442 -- end [[PARENT_UNIT_NAME .] IDENTIFIER];
4445 -- Sloc points to PACKAGE
4446 -- Defining_Unit_Name (Node1)
4447 -- Declarations (List2)
4448 -- Handled_Statement_Sequence (Node4) (set to Empty if no HSS present)
4449 -- Corresponding_Spec (Node5-Sem)
4450 -- Was_Originally_Stub (Flag13-Sem)
4452 -- Note: if a source level package does not contain a handled sequence
4453 -- of statements, then the parser supplies a dummy one with a null
4454 -- sequence of statements. Comes_From_Source will be False in this
4455 -- constructed sequence. The reason we need this is for the End_Label
4456 -- field in the HSS.
4458 -----------------------------------
4459 -- 7.4 Private Type Declaration --
4460 -----------------------------------
4462 -- PRIVATE_TYPE_DECLARATION ::=
4463 -- type DEFINING_IDENTIFIER [DISCRIMINANT_PART]
4464 -- is [[abstract] tagged] [limited] private;
4466 -- Note: TAGGED is not permitted in Ada 83 mode
4468 -- N_Private_Type_Declaration
4469 -- Sloc points to TYPE
4470 -- Defining_Identifier (Node1)
4471 -- Discriminant_Specifications (List4) (set to No_List if no
4472 -- discriminant part)
4473 -- Unknown_Discriminants_Present (Flag13) set if (<>) discriminant
4474 -- Abstract_Present (Flag4)
4475 -- Tagged_Present (Flag15)
4476 -- Limited_Present (Flag17)
4478 ----------------------------------------
4479 -- 7.4 Private Extension Declaration --
4480 ----------------------------------------
4482 -- PRIVATE_EXTENSION_DECLARATION ::=
4483 -- type DEFINING_IDENTIFIER [DISCRIMINANT_PART] is
4484 -- [abstract] [limited | synchronized]
4485 -- new ancestor_SUBTYPE_INDICATION [and INTERFACE_LIST]
4488 -- Note: LIMITED, and private extension declarations are not allowed
4491 -- N_Private_Extension_Declaration
4492 -- Sloc points to TYPE
4493 -- Defining_Identifier (Node1)
4494 -- Discriminant_Specifications (List4) (set to No_List if no
4495 -- discriminant part)
4496 -- Unknown_Discriminants_Present (Flag13) set if (<>) discriminant
4497 -- Abstract_Present (Flag4)
4498 -- Limited_Present (Flag17)
4499 -- Synchronized_Present (Flag7)
4500 -- Subtype_Indication (Node5)
4501 -- Interface_List (List2) (set to No_List if none)
4503 ---------------------
4504 -- 8.4 Use Clause --
4505 ---------------------
4507 -- USE_CLAUSE ::= USE_PACKAGE_CLAUSE | USE_TYPE_CLAUSE
4509 -----------------------------
4510 -- 8.4 Use Package Clause --
4511 -----------------------------
4513 -- USE_PACKAGE_CLAUSE ::= use package_NAME {, package_NAME};
4515 -- N_Use_Package_Clause
4516 -- Sloc points to USE
4518 -- Next_Use_Clause (Node3-Sem)
4519 -- Hidden_By_Use_Clause (Elist4-Sem)
4521 --------------------------
4522 -- 8.4 Use Type Clause --
4523 --------------------------
4525 -- USE_TYPE_CLAUSE ::= use type SUBTYPE_MARK {, SUBTYPE_MARK};
4527 -- Note: use type clause is not permitted in Ada 83 mode
4529 -- N_Use_Type_Clause
4530 -- Sloc points to USE
4531 -- Subtype_Marks (List2)
4532 -- Next_Use_Clause (Node3-Sem)
4533 -- Hidden_By_Use_Clause (Elist4-Sem)
4535 -------------------------------
4536 -- 8.5 Renaming Declaration --
4537 -------------------------------
4539 -- RENAMING_DECLARATION ::=
4540 -- OBJECT_RENAMING_DECLARATION
4541 -- | EXCEPTION_RENAMING_DECLARATION
4542 -- | PACKAGE_RENAMING_DECLARATION
4543 -- | SUBPROGRAM_RENAMING_DECLARATION
4544 -- | GENERIC_RENAMING_DECLARATION
4546 --------------------------------------
4547 -- 8.5 Object Renaming Declaration --
4548 --------------------------------------
4550 -- OBJECT_RENAMING_DECLARATION ::=
4551 -- DEFINING_IDENTIFIER :
4552 -- [NULL_EXCLUSION] SUBTYPE_MARK renames object_NAME;
4553 -- | DEFINING_IDENTIFIER :
4554 -- ACCESS_DEFINITION renames object_NAME;
4556 -- Note: Access_Definition is an optional field that gives support to
4557 -- Ada 2005 (AI-230). The parser generates nodes that have either the
4558 -- Subtype_Indication field or else the Access_Definition field.
4560 -- N_Object_Renaming_Declaration
4561 -- Sloc points to first identifier
4562 -- Defining_Identifier (Node1)
4563 -- Null_Exclusion_Present (Flag11) (set to False if not present)
4564 -- Subtype_Mark (Node4) (set to Empty if not present)
4565 -- Access_Definition (Node3) (set to Empty if not present)
4567 -- Corresponding_Generic_Association (Node5-Sem)
4569 -----------------------------------------
4570 -- 8.5 Exception Renaming Declaration --
4571 -----------------------------------------
4573 -- EXCEPTION_RENAMING_DECLARATION ::=
4574 -- DEFINING_IDENTIFIER : exception renames exception_NAME;
4576 -- N_Exception_Renaming_Declaration
4577 -- Sloc points to first identifier
4578 -- Defining_Identifier (Node1)
4581 ---------------------------------------
4582 -- 8.5 Package Renaming Declaration --
4583 ---------------------------------------
4585 -- PACKAGE_RENAMING_DECLARATION ::=
4586 -- package DEFINING_PROGRAM_UNIT_NAME renames package_NAME;
4588 -- N_Package_Renaming_Declaration
4589 -- Sloc points to PACKAGE
4590 -- Defining_Unit_Name (Node1)
4592 -- Parent_Spec (Node4-Sem)
4594 ------------------------------------------
4595 -- 8.5 Subprogram Renaming Declaration --
4596 ------------------------------------------
4598 -- SUBPROGRAM_RENAMING_DECLARATION ::=
4599 -- SUBPROGRAM_SPECIFICATION renames callable_entity_NAME;
4601 -- N_Subprogram_Renaming_Declaration
4602 -- Sloc points to RENAMES
4603 -- Specification (Node1)
4605 -- Parent_Spec (Node4-Sem)
4606 -- Corresponding_Spec (Node5-Sem)
4607 -- Corresponding_Formal_Spec (Node3-Sem)
4608 -- From_Default (Flag6-Sem)
4610 -----------------------------------------
4611 -- 8.5.5 Generic Renaming Declaration --
4612 -----------------------------------------
4614 -- GENERIC_RENAMING_DECLARATION ::=
4615 -- generic package DEFINING_PROGRAM_UNIT_NAME
4616 -- renames generic_package_NAME
4617 -- | generic procedure DEFINING_PROGRAM_UNIT_NAME
4618 -- renames generic_procedure_NAME
4619 -- | generic function DEFINING_PROGRAM_UNIT_NAME
4620 -- renames generic_function_NAME
4622 -- N_Generic_Package_Renaming_Declaration
4623 -- Sloc points to GENERIC
4624 -- Defining_Unit_Name (Node1)
4626 -- Parent_Spec (Node4-Sem)
4628 -- N_Generic_Procedure_Renaming_Declaration
4629 -- Sloc points to GENERIC
4630 -- Defining_Unit_Name (Node1)
4632 -- Parent_Spec (Node4-Sem)
4634 -- N_Generic_Function_Renaming_Declaration
4635 -- Sloc points to GENERIC
4636 -- Defining_Unit_Name (Node1)
4638 -- Parent_Spec (Node4-Sem)
4640 --------------------------------
4641 -- 9.1 Task Type Declaration --
4642 --------------------------------
4644 -- TASK_TYPE_DECLARATION ::=
4645 -- task type DEFINING_IDENTIFIER [KNOWN_DISCRIMINANT_PART]
4646 -- [is [new INTERFACE_LIST with] TASK_DEFINITITION];
4648 -- N_Task_Type_Declaration
4649 -- Sloc points to TASK
4650 -- Defining_Identifier (Node1)
4651 -- Discriminant_Specifications (List4) (set to No_List if no
4652 -- discriminant part)
4653 -- Interface_List (List2) (set to No_List if none)
4654 -- Task_Definition (Node3) (set to Empty if not present)
4655 -- Corresponding_Body (Node5-Sem)
4657 ----------------------------------
4658 -- 9.1 Single Task Declaration --
4659 ----------------------------------
4661 -- SINGLE_TASK_DECLARATION ::=
4662 -- task DEFINING_IDENTIFIER
4663 -- [is [new INTERFACE_LIST with] TASK_DEFINITITION];
4665 -- N_Single_Task_Declaration
4666 -- Sloc points to TASK
4667 -- Defining_Identifier (Node1)
4668 -- Interface_List (List2) (set to No_List if none)
4669 -- Task_Definition (Node3) (set to Empty if not present)
4671 --------------------------
4672 -- 9.1 Task Definition --
4673 --------------------------
4675 -- TASK_DEFINITION ::=
4679 -- end [task_IDENTIFIER]
4681 -- Note: as a result of semantic analysis, the list of task items can
4682 -- include implicit type declarations resulting from entry families.
4684 -- N_Task_Definition
4685 -- Sloc points to first token of task definition
4686 -- Visible_Declarations (List2)
4687 -- Private_Declarations (List3) (set to No_List if no private part)
4688 -- End_Label (Node4)
4689 -- Has_Priority_Pragma (Flag6-Sem)
4690 -- Has_Storage_Size_Pragma (Flag5-Sem)
4691 -- Has_Task_Info_Pragma (Flag7-Sem)
4692 -- Has_Task_Name_Pragma (Flag8-Sem)
4694 --------------------
4696 --------------------
4698 -- TASK_ITEM ::= ENTRY_DECLARATION | REPRESENTATION_CLAUSE
4700 --------------------
4702 --------------------
4705 -- task body task_DEFINING_IDENTIFIER is
4708 -- HANDLED_SEQUENCE_OF_STATEMENTS
4709 -- end [task_IDENTIFIER];
4711 -- Gigi restriction: This node never appears
4714 -- Sloc points to TASK
4715 -- Defining_Identifier (Node1)
4716 -- Declarations (List2)
4717 -- Handled_Statement_Sequence (Node4)
4718 -- Is_Task_Master (Flag5-Sem)
4719 -- Activation_Chain_Entity (Node3-Sem)
4720 -- Corresponding_Spec (Node5-Sem)
4721 -- Was_Originally_Stub (Flag13-Sem)
4723 -------------------------------------
4724 -- 9.4 Protected Type Declaration --
4725 -------------------------------------
4727 -- PROTECTED_TYPE_DECLARATION ::=
4728 -- protected type DEFINING_IDENTIFIER [KNOWN_DISCRIMINANT_PART]
4729 -- is [new INTERFACE_LIST with] PROTECTED_DEFINITION;
4731 -- Note: protected type declarations are not permitted in Ada 83 mode
4733 -- N_Protected_Type_Declaration
4734 -- Sloc points to PROTECTED
4735 -- Defining_Identifier (Node1)
4736 -- Discriminant_Specifications (List4) (set to No_List if no
4737 -- discriminant part)
4738 -- Interface_List (List2) (set to No_List if none)
4739 -- Protected_Definition (Node3)
4740 -- Corresponding_Body (Node5-Sem)
4742 ---------------------------------------
4743 -- 9.4 Single Protected Declaration --
4744 ---------------------------------------
4746 -- SINGLE_PROTECTED_DECLARATION ::=
4747 -- protected DEFINING_IDENTIFIER
4748 -- is [new INTERFACE_LIST with] PROTECTED_DEFINITION;
4750 -- Note: single protected declarations are not allowed in Ada 83 mode
4752 -- N_Single_Protected_Declaration
4753 -- Sloc points to PROTECTED
4754 -- Defining_Identifier (Node1)
4755 -- Interface_List (List2) (set to No_List if none)
4756 -- Protected_Definition (Node3)
4758 -------------------------------
4759 -- 9.4 Protected Definition --
4760 -------------------------------
4762 -- PROTECTED_DEFINITION ::=
4763 -- {PROTECTED_OPERATION_DECLARATION}
4765 -- {PROTECTED_ELEMENT_DECLARATION}]
4766 -- end [protected_IDENTIFIER]
4768 -- N_Protected_Definition
4769 -- Sloc points to first token of protected definition
4770 -- Visible_Declarations (List2)
4771 -- Private_Declarations (List3) (set to No_List if no private part)
4772 -- End_Label (Node4)
4773 -- Has_Priority_Pragma (Flag6-Sem)
4775 ------------------------------------------
4776 -- 9.4 Protected Operation Declaration --
4777 ------------------------------------------
4779 -- PROTECTED_OPERATION_DECLARATION ::=
4780 -- SUBPROGRAM_DECLARATION
4781 -- | ENTRY_DECLARATION
4782 -- | REPRESENTATION_CLAUSE
4784 ----------------------------------------
4785 -- 9.4 Protected Element Declaration --
4786 ----------------------------------------
4788 -- PROTECTED_ELEMENT_DECLARATION ::=
4789 -- PROTECTED_OPERATION_DECLARATION | COMPONENT_DECLARATION
4791 -------------------------
4792 -- 9.4 Protected Body --
4793 -------------------------
4795 -- PROTECTED_BODY ::=
4796 -- protected body DEFINING_IDENTIFIER is
4797 -- {PROTECTED_OPERATION_ITEM}
4798 -- end [protected_IDENTIFIER];
4800 -- Note: protected bodies are not allowed in Ada 83 mode
4802 -- Gigi restriction: This node never appears
4805 -- Sloc points to PROTECTED
4806 -- Defining_Identifier (Node1)
4807 -- Declarations (List2) protected operation items (and pragmas)
4808 -- End_Label (Node4)
4809 -- Corresponding_Spec (Node5-Sem)
4810 -- Was_Originally_Stub (Flag13-Sem)
4812 -----------------------------------
4813 -- 9.4 Protected Operation Item --
4814 -----------------------------------
4816 -- PROTECTED_OPERATION_ITEM ::=
4817 -- SUBPROGRAM_DECLARATION
4818 -- | SUBPROGRAM_BODY
4820 -- | REPRESENTATION_CLAUSE
4822 ------------------------------
4823 -- 9.5.2 Entry Declaration --
4824 ------------------------------
4826 -- ENTRY_DECLARATION ::=
4827 -- [[not] overriding]
4828 -- entry DEFINING_IDENTIFIER
4829 -- [(DISCRETE_SUBTYPE_DEFINITION)] PARAMETER_PROFILE;
4831 -- N_Entry_Declaration
4832 -- Sloc points to ENTRY
4833 -- Defining_Identifier (Node1)
4834 -- Discrete_Subtype_Definition (Node4) (set to Empty if not present)
4835 -- Parameter_Specifications (List3) (set to No_List if no formal part)
4836 -- Corresponding_Body (Node5-Sem)
4837 -- Must_Override (Flag14) set if overriding indicator present
4838 -- Must_Not_Override (Flag15) set if not_overriding indicator present
4840 -- Note: overriding indicator is an Ada 2005 feature
4842 -----------------------------
4843 -- 9.5.2 Accept statement --
4844 -----------------------------
4846 -- ACCEPT_STATEMENT ::=
4847 -- accept entry_DIRECT_NAME
4848 -- [(ENTRY_INDEX)] PARAMETER_PROFILE [do
4849 -- HANDLED_SEQUENCE_OF_STATEMENTS
4850 -- end [entry_IDENTIFIER]];
4852 -- Gigi restriction: This node never appears
4854 -- Note: there are no explicit declarations allowed in an accept
4855 -- statement. However, the implicit declarations for any statement
4856 -- identifiers (labels and block/loop identifiers) are declarations
4857 -- that belong logically to the accept statement, and that is why
4858 -- there is a Declarations field in this node.
4860 -- N_Accept_Statement
4861 -- Sloc points to ACCEPT
4862 -- Entry_Direct_Name (Node1)
4863 -- Entry_Index (Node5) (set to Empty if not present)
4864 -- Parameter_Specifications (List3) (set to No_List if no formal part)
4865 -- Handled_Statement_Sequence (Node4)
4866 -- Declarations (List2) (set to No_List if no declarations)
4868 ------------------------
4869 -- 9.5.2 Entry Index --
4870 ------------------------
4872 -- ENTRY_INDEX ::= EXPRESSION
4874 -----------------------
4875 -- 9.5.2 Entry Body --
4876 -----------------------
4879 -- entry DEFINING_IDENTIFIER ENTRY_BODY_FORMAL_PART ENTRY_BARRIER is
4882 -- HANDLED_SEQUENCE_OF_STATEMENTS
4883 -- end [entry_IDENTIFIER];
4885 -- ENTRY_BARRIER ::= when CONDITION
4887 -- Note: we store the CONDITION of the ENTRY_BARRIER in the node for
4888 -- the ENTRY_BODY_FORMAL_PART to avoid the N_Entry_Body node getting
4889 -- too full (it would otherwise have too many fields)
4891 -- Gigi restriction: This node never appears
4894 -- Sloc points to ENTRY
4895 -- Defining_Identifier (Node1)
4896 -- Entry_Body_Formal_Part (Node5)
4897 -- Declarations (List2)
4898 -- Handled_Statement_Sequence (Node4)
4899 -- Activation_Chain_Entity (Node3-Sem)
4901 -----------------------------------
4902 -- 9.5.2 Entry Body Formal Part --
4903 -----------------------------------
4905 -- ENTRY_BODY_FORMAL_PART ::=
4906 -- [(ENTRY_INDEX_SPECIFICATION)] PARAMETER_PROFILE
4908 -- Note that an entry body formal part node is present even if it is
4909 -- empty. This reflects the grammar, in which it is the components of
4910 -- the entry body formal part that are optional, not the entry body
4911 -- formal part itself. Also this means that the barrier condition
4912 -- always has somewhere to be stored.
4914 -- Gigi restriction: This node never appears
4916 -- N_Entry_Body_Formal_Part
4917 -- Sloc points to first token
4918 -- Entry_Index_Specification (Node4) (set to Empty if not present)
4919 -- Parameter_Specifications (List3) (set to No_List if no formal part)
4920 -- Condition (Node1) from entry barrier of entry body
4922 --------------------------
4923 -- 9.5.2 Entry Barrier --
4924 --------------------------
4926 -- ENTRY_BARRIER ::= when CONDITION
4928 --------------------------------------
4929 -- 9.5.2 Entry Index Specification --
4930 --------------------------------------
4932 -- ENTRY_INDEX_SPECIFICATION ::=
4933 -- for DEFINING_IDENTIFIER in DISCRETE_SUBTYPE_DEFINITION
4935 -- Gigi restriction: This node never appears
4937 -- N_Entry_Index_Specification
4938 -- Sloc points to FOR
4939 -- Defining_Identifier (Node1)
4940 -- Discrete_Subtype_Definition (Node4)
4942 ---------------------------------
4943 -- 9.5.3 Entry Call Statement --
4944 ---------------------------------
4946 -- ENTRY_CALL_STATEMENT ::= entry_NAME [ACTUAL_PARAMETER_PART];
4948 -- The parser may generate a procedure call for this construct. The
4949 -- semantic pass must correct this misidentification where needed.
4951 -- Gigi restriction: This node never appears
4953 -- N_Entry_Call_Statement
4954 -- Sloc points to first token of name
4956 -- Parameter_Associations (List3) (set to No_List if no
4957 -- actual parameter part)
4958 -- First_Named_Actual (Node4-Sem)
4960 ------------------------------
4961 -- 9.5.4 Requeue Statement --
4962 ------------------------------
4964 -- REQUEUE_STATEMENT ::= requeue entry_NAME [with abort];
4966 -- Note: requeue statements are not permitted in Ada 83 mode
4968 -- Gigi restriction: This node never appears
4970 -- N_Requeue_Statement
4971 -- Sloc points to REQUEUE
4973 -- Abort_Present (Flag15)
4975 --------------------------
4976 -- 9.6 Delay Statement --
4977 --------------------------
4979 -- DELAY_STATEMENT ::=
4980 -- DELAY_UNTIL_STATEMENT
4981 -- | DELAY_RELATIVE_STATEMENT
4983 --------------------------------
4984 -- 9.6 Delay Until Statement --
4985 --------------------------------
4987 -- DELAY_UNTIL_STATEMENT ::= delay until delay_EXPRESSION;
4989 -- Note: delay until statements are not permitted in Ada 83 mode
4991 -- Gigi restriction: This node never appears
4993 -- N_Delay_Until_Statement
4994 -- Sloc points to DELAY
4995 -- Expression (Node3)
4997 -----------------------------------
4998 -- 9.6 Delay Relative Statement --
4999 -----------------------------------
5001 -- DELAY_RELATIVE_STATEMENT ::= delay delay_EXPRESSION;
5003 -- Gigi restriction: This node never appears
5005 -- N_Delay_Relative_Statement
5006 -- Sloc points to DELAY
5007 -- Expression (Node3)
5009 ---------------------------
5010 -- 9.7 Select Statement --
5011 ---------------------------
5013 -- SELECT_STATEMENT ::=
5015 -- | TIMED_ENTRY_CALL
5016 -- | CONDITIONAL_ENTRY_CALL
5017 -- | ASYNCHRONOUS_SELECT
5019 -----------------------------
5020 -- 9.7.1 Selective Accept --
5021 -----------------------------
5023 -- SELECTIVE_ACCEPT ::=
5026 -- SELECT_ALTERNATIVE
5029 -- SELECT_ALTERNATIVE}
5031 -- SEQUENCE_OF_STATEMENTS]
5034 -- Gigi restriction: This node never appears
5036 -- Note: the guard expression, if present, appears in the node for
5037 -- the select alternative.
5039 -- N_Selective_Accept
5040 -- Sloc points to SELECT
5041 -- Select_Alternatives (List1)
5042 -- Else_Statements (List4) (set to No_List if no else part)
5048 -- GUARD ::= when CONDITION =>
5050 -- As noted above, the CONDITION that is part of a GUARD is included
5051 -- in the node for the select alernative for convenience.
5053 -------------------------------
5054 -- 9.7.1 Select Alternative --
5055 -------------------------------
5057 -- SELECT_ALTERNATIVE ::=
5058 -- ACCEPT_ALTERNATIVE
5059 -- | DELAY_ALTERNATIVE
5060 -- | TERMINATE_ALTERNATIVE
5062 -------------------------------
5063 -- 9.7.1 Accept Alternative --
5064 -------------------------------
5066 -- ACCEPT_ALTERNATIVE ::=
5067 -- ACCEPT_STATEMENT [SEQUENCE_OF_STATEMENTS]
5069 -- Gigi restriction: This node never appears
5071 -- N_Accept_Alternative
5072 -- Sloc points to ACCEPT
5073 -- Accept_Statement (Node2)
5074 -- Condition (Node1) from the guard (set to Empty if no guard present)
5075 -- Statements (List3) (set to Empty_List if no statements)
5076 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5077 -- Accept_Handler_Records (List5-Sem)
5079 ------------------------------
5080 -- 9.7.1 Delay Alternative --
5081 ------------------------------
5083 -- DELAY_ALTERNATIVE ::=
5084 -- DELAY_STATEMENT [SEQUENCE_OF_STATEMENTS]
5086 -- Gigi restriction: This node never appears
5088 -- N_Delay_Alternative
5089 -- Sloc points to DELAY
5090 -- Delay_Statement (Node2)
5091 -- Condition (Node1) from the guard (set to Empty if no guard present)
5092 -- Statements (List3) (set to Empty_List if no statements)
5093 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5095 ----------------------------------
5096 -- 9.7.1 Terminate Alternative --
5097 ----------------------------------
5099 -- TERMINATE_ALTERNATIVE ::= terminate;
5101 -- Gigi restriction: This node never appears
5103 -- N_Terminate_Alternative
5104 -- Sloc points to TERMINATE
5105 -- Condition (Node1) from the guard (set to Empty if no guard present)
5106 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5107 -- Pragmas_After (List5) pragmas after alt (set to No_List if none)
5109 -----------------------------
5110 -- 9.7.2 Timed Entry Call --
5111 -----------------------------
5113 -- TIMED_ENTRY_CALL ::=
5115 -- ENTRY_CALL_ALTERNATIVE
5117 -- DELAY_ALTERNATIVE
5120 -- Gigi restriction: This node never appears
5122 -- N_Timed_Entry_Call
5123 -- Sloc points to SELECT
5124 -- Entry_Call_Alternative (Node1)
5125 -- Delay_Alternative (Node4)
5127 -----------------------------------
5128 -- 9.7.2 Entry Call Alternative --
5129 -----------------------------------
5131 -- ENTRY_CALL_ALTERNATIVE ::=
5132 -- PROCEDURE_OR_ENTRY_CALL [SEQUENCE_OF_STATEMENTS]
5134 -- PROCEDURE_OR_ENTRY_CALL ::=
5135 -- PROCEDURE_CALL_STATEMENT | ENTRY_CALL_STATEMENT
5137 -- Gigi restriction: This node never appears
5139 -- N_Entry_Call_Alternative
5140 -- Sloc points to first token of entry call statement
5141 -- Entry_Call_Statement (Node1)
5142 -- Statements (List3) (set to Empty_List if no statements)
5143 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5145 -----------------------------------
5146 -- 9.7.3 Conditional Entry Call --
5147 -----------------------------------
5149 -- CONDITIONAL_ENTRY_CALL ::=
5151 -- ENTRY_CALL_ALTERNATIVE
5153 -- SEQUENCE_OF_STATEMENTS
5156 -- Gigi restriction: This node never appears
5158 -- N_Conditional_Entry_Call
5159 -- Sloc points to SELECT
5160 -- Entry_Call_Alternative (Node1)
5161 -- Else_Statements (List4)
5163 --------------------------------
5164 -- 9.7.4 Asynchronous Select --
5165 --------------------------------
5167 -- ASYNCHRONOUS_SELECT ::=
5169 -- TRIGGERING_ALTERNATIVE
5174 -- Note: asynchronous select is not permitted in Ada 83 mode
5176 -- Gigi restriction: This node never appears
5178 -- N_Asynchronous_Select
5179 -- Sloc points to SELECT
5180 -- Triggering_Alternative (Node1)
5181 -- Abortable_Part (Node2)
5183 -----------------------------------
5184 -- 9.7.4 Triggering Alternative --
5185 -----------------------------------
5187 -- TRIGGERING_ALTERNATIVE ::=
5188 -- TRIGGERING_STATEMENT [SEQUENCE_OF_STATEMENTS]
5190 -- Gigi restriction: This node never appears
5192 -- N_Triggering_Alternative
5193 -- Sloc points to first token of triggering statement
5194 -- Triggering_Statement (Node1)
5195 -- Statements (List3) (set to Empty_List if no statements)
5196 -- Pragmas_Before (List4) pragmas before alt (set to No_List if none)
5198 ---------------------------------
5199 -- 9.7.4 Triggering Statement --
5200 ---------------------------------
5202 -- TRIGGERING_STATEMENT ::= PROCEDURE_OR_ENTRY_CALL | DELAY_STATEMENT
5204 ---------------------------
5205 -- 9.7.4 Abortable Part --
5206 ---------------------------
5208 -- ABORTABLE_PART ::= SEQUENCE_OF_STATEMENTS
5210 -- Gigi restriction: This node never appears
5213 -- Sloc points to ABORT
5214 -- Statements (List3)
5216 --------------------------
5217 -- 9.8 Abort Statement --
5218 --------------------------
5220 -- ABORT_STATEMENT ::= abort task_NAME {, task_NAME};
5222 -- Gigi restriction: This node never appears
5224 -- N_Abort_Statement
5225 -- Sloc points to ABORT
5228 -------------------------
5229 -- 10.1.1 Compilation --
5230 -------------------------
5232 -- COMPILATION ::= {COMPILATION_UNIT}
5234 -- There is no explicit node in the tree for a compilation, since in
5235 -- general the compiler is processing only a single compilation unit
5236 -- at a time. It is possible to parse multiple units in syntax check
5237 -- only mode, but they the trees are discarded in any case.
5239 ------------------------------
5240 -- 10.1.1 Compilation Unit --
5241 ------------------------------
5243 -- COMPILATION_UNIT ::=
5244 -- CONTEXT_CLAUSE LIBRARY_ITEM
5245 -- | CONTEXT_CLAUSE SUBUNIT
5247 -- The N_Compilation_Unit node itself respresents the above syntax.
5248 -- However, there are two additional items not reflected in the above
5249 -- syntax. First we have the global declarations that are added by the
5250 -- code generator. These are outer level declarations (so they cannot
5251 -- be represented as being inside the units). An example is the wrapper
5252 -- subprograms that are created to do ABE checking. As always a list of
5253 -- declarations can contain actions as well (i.e. statements), and such
5254 -- statements are executed as part of the elaboration of the unit. Note
5255 -- that all such declarations are elaborated before the library unit.
5257 -- Similarly, certain actions need to be elaborated at the completion
5258 -- of elaboration of the library unit (notably the statement that sets
5259 -- the Boolean flag indicating that elaboration is complete).
5261 -- The third item not reflected in the syntax is pragmas that appear
5262 -- after the compilation unit. As always pragmas are a problem since
5263 -- they are not part of the formal syntax, but can be stuck into the
5264 -- source following a set of ad hoc rules, and we have to find an ad
5265 -- hoc way of sticking them into the tree. For pragmas that appear
5266 -- before the library unit, we just consider them to be part of the
5267 -- context clause, and pragmas can appear in the Context_Items list
5268 -- of the compilation unit. However, pragmas can also appear after
5269 -- the library item.
5271 -- To deal with all these problems, we create an auxiliary node for
5272 -- a compilation unit, referenced from the N_Compilation_Unit node
5273 -- that contains these three items.
5275 -- N_Compilation_Unit
5276 -- Sloc points to first token of defining unit name
5277 -- Library_Unit (Node4-Sem) corresponding/parent spec/body
5278 -- Context_Items (List1) context items and pragmas preceding unit
5279 -- Private_Present (Flag15) set if library unit has private keyword
5280 -- Unit (Node2) library item or subunit
5281 -- Aux_Decls_Node (Node5) points to the N_Compilation_Unit_Aux node
5282 -- Has_No_Elaboration_Code (Flag17-Sem)
5283 -- Body_Required (Flag13-Sem) set for spec if body is required
5284 -- Acts_As_Spec (Flag4-Sem) flag for subprogram body with no spec
5285 -- First_Inlined_Subprogram (Node3-Sem)
5287 -- N_Compilation_Unit_Aux
5288 -- Sloc is a copy of the Sloc from the N_Compilation_Unit node
5289 -- Declarations (List2) (set to No_List if no global declarations)
5290 -- Actions (List1) (set to No_List if no actions)
5291 -- Pragmas_After (List5) pragmas after unit (set to No_List if none)
5292 -- Config_Pragmas (List4) config pragmas (set to Empty_List if none)
5294 --------------------------
5295 -- 10.1.1 Library Item --
5296 --------------------------
5299 -- [private] LIBRARY_UNIT_DECLARATION
5300 -- | LIBRARY_UNIT_BODY
5301 -- | [private] LIBRARY_UNIT_RENAMING_DECLARATION
5303 -- Note: PRIVATE is not allowed in Ada 83 mode
5305 -- There is no explicit node in the tree for library item, instead
5306 -- the declaration or body, and the flag for private if present,
5307 -- appear in the N_Compilation_Unit clause.
5309 ----------------------------------------
5310 -- 10.1.1 Library Unit Declararation --
5311 ----------------------------------------
5313 -- LIBRARY_UNIT_DECLARATION ::=
5314 -- SUBPROGRAM_DECLARATION | PACKAGE_DECLARATION
5315 -- | GENERIC_DECLARATION | GENERIC_INSTANTIATION
5317 -------------------------------------------------
5318 -- 10.1.1 Library Unit Renaming Declararation --
5319 -------------------------------------------------
5321 -- LIBRARY_UNIT_RENAMING_DECLARATION ::=
5322 -- PACKAGE_RENAMING_DECLARATION
5323 -- | GENERIC_RENAMING_DECLARATION
5324 -- | SUBPROGRAM_RENAMING_DECLARATION
5326 -------------------------------
5327 -- 10.1.1 Library unit body --
5328 -------------------------------
5330 -- LIBRARY_UNIT_BODY ::= SUBPROGRAM_BODY | PACKAGE_BODY
5332 ------------------------------
5333 -- 10.1.1 Parent Unit Name --
5334 ------------------------------
5336 -- PARENT_UNIT_NAME ::= NAME
5338 ----------------------------
5339 -- 10.1.2 Context clause --
5340 ----------------------------
5342 -- CONTEXT_CLAUSE ::= {CONTEXT_ITEM}
5344 -- The context clause can include pragmas, and any pragmas that appear
5345 -- before the context clause proper (i.e. all configuration pragmas,
5346 -- also appear at the front of this list).
5348 --------------------------
5349 -- 10.1.2 Context_Item --
5350 --------------------------
5352 -- CONTEXT_ITEM ::= WITH_CLAUSE | USE_CLAUSE | WITH_TYPE_CLAUSE
5354 -------------------------
5355 -- 10.1.2 With clause --
5356 -------------------------
5359 -- with library_unit_NAME {,library_unit_NAME};
5361 -- A separate With clause is built for each name, so that we have
5362 -- a Corresponding_Spec field for each with'ed spec. The flags
5363 -- First_Name and Last_Name are used to reconstruct the exact
5364 -- source form. When a list of names appears in one with clause,
5365 -- the first name in the list has First_Name set, and the last
5366 -- has Last_Name set. If the with clause has only one name, then
5367 -- both of the flags First_Name and Last_Name are set in this name.
5369 -- Note: in the case of implicit with's that are installed by the
5370 -- Rtsfind routine, Implicit_With is set, and the Sloc is typically
5371 -- set to Standard_Location, but it is incorrect to test the Sloc
5372 -- to find out if a with clause is implicit, test the flag instead.
5375 -- Sloc points to first token of library unit name
5377 -- Library_Unit (Node4-Sem)
5378 -- Corresponding_Spec (Node5-Sem)
5379 -- First_Name (Flag5) (set to True if first name or only one name)
5380 -- Last_Name (Flag6) (set to True if last name or only one name)
5381 -- Context_Installed (Flag13-Sem)
5382 -- Elaborate_Present (Flag4-Sem)
5383 -- Elaborate_All_Present (Flag14-Sem)
5384 -- Elaborate_All_Desirable (Flag9-Sem)
5385 -- Elaborate_Desirable (Flag11-Sem)
5386 -- Private_Present (Flag15) set if with_clause has private keyword
5387 -- Implicit_With (Flag16-Sem)
5388 -- Limited_Present (Flag17) set if LIMITED is present
5389 -- Limited_View_Installed (Flag18-Sem)
5390 -- Unreferenced_In_Spec (Flag7-Sem)
5391 -- No_Entities_Ref_In_Spec (Flag8-Sem)
5393 -- Note: Limited_Present and Limited_View_Installed give support to
5394 -- Ada 2005 (AI-50217).
5395 -- Similarly, Private_Present gives support to AI-50262.
5397 ----------------------
5398 -- With_Type clause --
5399 ----------------------
5401 -- This is a GNAT extension, used to implement mutually recursive
5402 -- types declared in different packages.
5403 -- Note: this is now obsolete. The functionality of this construct
5404 -- is now implemented by the Ada 2005 Limited_with_Clause.
5406 ---------------------
5407 -- 10.2 Body stub --
5408 ---------------------
5411 -- SUBPROGRAM_BODY_STUB
5412 -- | PACKAGE_BODY_STUB
5414 -- | PROTECTED_BODY_STUB
5416 ----------------------------------
5417 -- 10.1.3 Subprogram Body Stub --
5418 ----------------------------------
5420 -- SUBPROGRAM_BODY_STUB ::=
5421 -- SUBPROGRAM_SPECIFICATION is separate;
5423 -- N_Subprogram_Body_Stub
5424 -- Sloc points to FUNCTION or PROCEDURE
5425 -- Specification (Node1)
5426 -- Library_Unit (Node4-Sem) points to the subunit
5427 -- Corresponding_Body (Node5-Sem)
5429 -------------------------------
5430 -- 10.1.3 Package Body Stub --
5431 -------------------------------
5433 -- PACKAGE_BODY_STUB ::=
5434 -- package body DEFINING_IDENTIFIER is separate;
5436 -- N_Package_Body_Stub
5437 -- Sloc points to PACKAGE
5438 -- Defining_Identifier (Node1)
5439 -- Library_Unit (Node4-Sem) points to the subunit
5440 -- Corresponding_Body (Node5-Sem)
5442 ----------------------------
5443 -- 10.1.3 Task Body Stub --
5444 ----------------------------
5446 -- TASK_BODY_STUB ::=
5447 -- task body DEFINING_IDENTIFIER is separate;
5450 -- Sloc points to TASK
5451 -- Defining_Identifier (Node1)
5452 -- Library_Unit (Node4-Sem) points to the subunit
5453 -- Corresponding_Body (Node5-Sem)
5455 ---------------------------------
5456 -- 10.1.3 Protected Body Stub --
5457 ---------------------------------
5459 -- PROTECTED_BODY_STUB ::=
5460 -- protected body DEFINING_IDENTIFIER is separate;
5462 -- Note: protected body stubs are not allowed in Ada 83 mode
5464 -- N_Protected_Body_Stub
5465 -- Sloc points to PROTECTED
5466 -- Defining_Identifier (Node1)
5467 -- Library_Unit (Node4-Sem) points to the subunit
5468 -- Corresponding_Body (Node5-Sem)
5470 ---------------------
5471 -- 10.1.3 Subunit --
5472 ---------------------
5474 -- SUBUNIT ::= separate (PARENT_UNIT_NAME) PROPER_BODY
5477 -- Sloc points to SEPARATE
5478 -- Name (Node2) is the name of the parent unit
5479 -- Proper_Body (Node1) is the subunit body
5480 -- Corresponding_Stub (Node3-Sem) is the stub declaration for the unit.
5482 ---------------------------------
5483 -- 11.1 Exception Declaration --
5484 ---------------------------------
5486 -- EXCEPTION_DECLARATION ::= DEFINING_IDENTIFIER_LIST : exception;
5488 -- For consistency with object declarations etc, the parser converts
5489 -- the case of multiple identifiers being declared to a series of
5490 -- declarations in which the expression is copied, using the More_Ids
5491 -- and Prev_Ids flags to remember the souce form as described in the
5492 -- section on "Handling of Defining Identifier Lists".
5494 -- N_Exception_Declaration
5495 -- Sloc points to EXCEPTION
5496 -- Defining_Identifier (Node1)
5497 -- Expression (Node3-Sem)
5498 -- Renaming_Exception (Node2-Sem)
5499 -- More_Ids (Flag5) (set to False if no more identifiers in list)
5500 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
5502 ------------------------------------------
5503 -- 11.2 Handled Sequence Of Statements --
5504 ------------------------------------------
5506 -- HANDLED_SEQUENCE_OF_STATEMENTS ::=
5507 -- SEQUENCE_OF_STATEMENTS
5509 -- EXCEPTION_HANDLER
5510 -- {EXCEPTION_HANDLER}]
5512 -- cleanup_procedure_call (param, param, param, ...);]
5514 -- The AT END phrase is a GNAT extension to provide for cleanups. It is
5515 -- used only internally currently, but is considered to be syntactic.
5516 -- At the moment, the only cleanup action allowed is a single call to
5517 -- a parameterless procedure, and the Identifier field of the node is
5518 -- the procedure to be called. Also there is a current restriction
5519 -- that exception handles and a cleanup cannot be present in the same
5520 -- frame, so at least one of Exception_Handlers or the Identifier must
5523 -- Actually, more accurately, this restriction applies to the original
5524 -- source program. In the expanded tree, if the At_End_Proc field is
5525 -- present, then there will also be an exception handler of the form:
5527 -- when all others =>
5531 -- where cleanup is the procedure to be generated. The reason we do
5532 -- this is so that the front end can handle the necessary entries in
5533 -- the exception tables, and other exception handler actions required
5534 -- as part of the normal handling for exception handlers.
5536 -- The AT END cleanup handler protects only the sequence of statements
5537 -- (not the associated declarations of the parent), just like exception
5538 -- handlers. The big difference is that the cleanup procedure is called
5539 -- on either a normal or an abnormal exit from the statement sequence.
5541 -- Note: the list of Exception_Handlers can contain pragmas as well
5542 -- as actual handlers. In practice these pragmas can only occur at
5543 -- the start of the list, since any pragmas occurring later on will
5544 -- be included in the statement list of the corresponding handler.
5546 -- Note: although in the Ada syntax, the sequence of statements in
5547 -- a handled sequence of statements can only contain statements, we
5548 -- allow free mixing of declarations and statements in the resulting
5549 -- expanded tree. This is for example used to deal with the case of
5550 -- a cleanup procedure that must handle declarations as well as the
5551 -- statements of a block.
5553 -- N_Handled_Sequence_Of_Statements
5554 -- Sloc points to first token of first statement
5555 -- Statements (List3)
5556 -- End_Label (Node4) (set to Empty if expander generated)
5557 -- Exception_Handlers (List5) (set to No_List if none present)
5558 -- At_End_Proc (Node1) (set to Empty if no clean up procedure)
5559 -- First_Real_Statement (Node2-Sem)
5560 -- Zero_Cost_Handling (Flag5-Sem)
5562 -- Note: the parent always contains a Declarations field which contains
5563 -- declarations associated with the handled sequence of statements. This
5564 -- is true even in the case of an accept statement (see description of
5565 -- the N_Accept_Statement node).
5567 -- End_Label refers to the containing construct
5569 -----------------------------
5570 -- 11.2 Exception Handler --
5571 -----------------------------
5573 -- EXCEPTION_HANDLER ::=
5574 -- when [CHOICE_PARAMETER_SPECIFICATION :]
5575 -- EXCEPTION_CHOICE {| EXCEPTION_CHOICE} =>
5576 -- SEQUENCE_OF_STATEMENTS
5578 -- Note: choice parameter specification is not allowed in Ada 83 mode
5580 -- N_Exception_Handler
5581 -- Sloc points to WHEN
5582 -- Choice_Parameter (Node2) (set to Empty if not present)
5583 -- Exception_Choices (List4)
5584 -- Statements (List3)
5585 -- Exception_Label (Node5-Sem) (set to Empty of not present)
5586 -- Zero_Cost_Handling (Flag5-Sem)
5587 -- Local_Raise_Statements (Elist1-Sem) (set to No_Elist if not present)
5588 -- Local_Raise_Not_OK (Flag7-Sem)
5589 -- Has_Local_Raise (Flag8-Sem)
5591 ------------------------------------------
5592 -- 11.2 Choice parameter specification --
5593 ------------------------------------------
5595 -- CHOICE_PARAMETER_SPECIFICATION ::= DEFINING_IDENTIFIER
5597 ----------------------------
5598 -- 11.2 Exception Choice --
5599 ----------------------------
5601 -- EXCEPTION_CHOICE ::= exception_NAME | others
5603 -- Except in the case of OTHERS, no explicit node appears in the tree
5604 -- for exception choice. Instead the exception name appears directly.
5605 -- An OTHERS choice is represented by a N_Others_Choice node (see
5608 -- Note: for the exception choice created for an at end handler, the
5609 -- exception choice is an N_Others_Choice node with All_Others set.
5611 ---------------------------
5612 -- 11.3 Raise Statement --
5613 ---------------------------
5615 -- RAISE_STATEMENT ::= raise [exception_NAME];
5617 -- In Ada 2005, we have
5619 -- RAISE_STATEMENT ::= raise; | raise exception_NAME [with EXPRESSION];
5621 -- N_Raise_Statement
5622 -- Sloc points to RAISE
5623 -- Name (Node2) (set to Empty if no exception name present)
5624 -- Expression (Node3) (set to Empty if no expression present)
5626 -------------------------------
5627 -- 12.1 Generic Declaration --
5628 -------------------------------
5630 -- GENERIC_DECLARATION ::=
5631 -- GENERIC_SUBPROGRAM_DECLARATION | GENERIC_PACKAGE_DECLARATION
5633 ------------------------------------------
5634 -- 12.1 Generic Subprogram Declaration --
5635 ------------------------------------------
5637 -- GENERIC_SUBPROGRAM_DECLARATION ::=
5638 -- GENERIC_FORMAL_PART SUBPROGRAM_SPECIFICATION;
5640 -- Note: Generic_Formal_Declarations can include pragmas
5642 -- N_Generic_Subprogram_Declaration
5643 -- Sloc points to GENERIC
5644 -- Specification (Node1) subprogram specification
5645 -- Corresponding_Body (Node5-Sem)
5646 -- Generic_Formal_Declarations (List2) from generic formal part
5647 -- Parent_Spec (Node4-Sem)
5649 ---------------------------------------
5650 -- 12.1 Generic Package Declaration --
5651 ---------------------------------------
5653 -- GENERIC_PACKAGE_DECLARATION ::=
5654 -- GENERIC_FORMAL_PART PACKAGE_SPECIFICATION;
5656 -- Note: when we do generics right, the Activation_Chain_Entity entry
5657 -- for this node can be removed (since the expander won't see generic
5658 -- units any more)???.
5660 -- Note: Generic_Formal_Declarations can include pragmas
5662 -- N_Generic_Package_Declaration
5663 -- Sloc points to GENERIC
5664 -- Specification (Node1) package specification
5665 -- Corresponding_Body (Node5-Sem)
5666 -- Generic_Formal_Declarations (List2) from generic formal part
5667 -- Parent_Spec (Node4-Sem)
5668 -- Activation_Chain_Entity (Node3-Sem)
5670 -------------------------------
5671 -- 12.1 Generic Formal Part --
5672 -------------------------------
5674 -- GENERIC_FORMAL_PART ::=
5675 -- generic {GENERIC_FORMAL_PARAMETER_DECLARATION | USE_CLAUSE}
5677 ------------------------------------------------
5678 -- 12.1 Generic Formal Parameter Declaration --
5679 ------------------------------------------------
5681 -- GENERIC_FORMAL_PARAMETER_DECLARATION ::=
5682 -- FORMAL_OBJECT_DECLARATION
5683 -- | FORMAL_TYPE_DECLARATION
5684 -- | FORMAL_SUBPROGRAM_DECLARATION
5685 -- | FORMAL_PACKAGE_DECLARATION
5687 ---------------------------------
5688 -- 12.3 Generic Instantiation --
5689 ---------------------------------
5691 -- GENERIC_INSTANTIATION ::=
5692 -- package DEFINING_PROGRAM_UNIT_NAME is
5693 -- new generic_package_NAME [GENERIC_ACTUAL_PART];
5694 -- | [[not] overriding]
5695 -- procedure DEFINING_PROGRAM_UNIT_NAME is
5696 -- new generic_procedure_NAME [GENERIC_ACTUAL_PART];
5697 -- | [[not] overriding]
5698 -- function DEFINING_DESIGNATOR is
5699 -- new generic_function_NAME [GENERIC_ACTUAL_PART];
5701 -- N_Package_Instantiation
5702 -- Sloc points to PACKAGE
5703 -- Defining_Unit_Name (Node1)
5705 -- Generic_Associations (List3) (set to No_List if no
5706 -- generic actual part)
5707 -- Parent_Spec (Node4-Sem)
5708 -- Instance_Spec (Node5-Sem)
5709 -- ABE_Is_Certain (Flag18-Sem)
5711 -- N_Procedure_Instantiation
5712 -- Sloc points to PROCEDURE
5713 -- Defining_Unit_Name (Node1)
5715 -- Parent_Spec (Node4-Sem)
5716 -- Generic_Associations (List3) (set to No_List if no
5717 -- generic actual part)
5718 -- Instance_Spec (Node5-Sem)
5719 -- Must_Override (Flag14) set if overriding indicator present
5720 -- Must_Not_Override (Flag15) set if not_overriding indicator present
5721 -- ABE_Is_Certain (Flag18-Sem)
5723 -- N_Function_Instantiation
5724 -- Sloc points to FUNCTION
5725 -- Defining_Unit_Name (Node1)
5727 -- Generic_Associations (List3) (set to No_List if no
5728 -- generic actual part)
5729 -- Parent_Spec (Node4-Sem)
5730 -- Instance_Spec (Node5-Sem)
5731 -- Must_Override (Flag14) set if overriding indicator present
5732 -- Must_Not_Override (Flag15) set if not_overriding indicator present
5733 -- ABE_Is_Certain (Flag18-Sem)
5735 -- Note: overriding indicator is an Ada 2005 feature
5737 ------------------------------
5738 -- 12.3 Generic Actual Part --
5739 ------------------------------
5741 -- GENERIC_ACTUAL_PART ::=
5742 -- (GENERIC_ASSOCIATION {, GENERIC_ASSOCIATION})
5744 -------------------------------
5745 -- 12.3 Generic Association --
5746 -------------------------------
5748 -- GENERIC_ASSOCIATION ::=
5749 -- [generic_formal_parameter_SELECTOR_NAME =>]
5751 -- Note: unlike the procedure call case, a generic association node
5752 -- is generated for every association, even if no formal is present.
5753 -- In this case the parser will leave the Selector_Name field set
5754 -- to Empty, to be filled in later by the semantic pass.
5756 -- In Ada 2005, a formal may be associated with a box, if the
5757 -- association is part of the list of actuals for a formal package.
5758 -- If the association is given by OTHERS => <>, the association is
5759 -- an N_Others_Choice.
5761 -- N_Generic_Association
5762 -- Sloc points to first token of generic association
5763 -- Selector_Name (Node2) (set to Empty if no formal
5764 -- parameter selector name)
5765 -- Explicit_Generic_Actual_Parameter (Node1) (Empty if box present)
5766 -- Box_Present (Flag15) (for formal_package associations with a box)
5768 ---------------------------------------------
5769 -- 12.3 Explicit Generic Actual Parameter --
5770 ---------------------------------------------
5772 -- EXPLICIT_GENERIC_ACTUAL_PARAMETER ::=
5773 -- EXPRESSION | variable_NAME | subprogram_NAME
5774 -- | entry_NAME | SUBTYPE_MARK | package_instance_NAME
5776 -------------------------------------
5777 -- 12.4 Formal Object Declaration --
5778 -------------------------------------
5780 -- FORMAL_OBJECT_DECLARATION ::=
5781 -- DEFINING_IDENTIFIER_LIST :
5782 -- MODE [NULL_EXCLUSION] SUBTYPE_MARK [:= DEFAULT_EXPRESSION];
5783 -- | DEFINING_IDENTIFIER_LIST :
5784 -- MODE ACCESS_DEFINITION [:= DEFAULT_EXPRESSION];
5786 -- Although the syntax allows multiple identifiers in the list, the
5787 -- semantics is as though successive declarations were given with
5788 -- identical type definition and expression components. To simplify
5789 -- semantic processing, the parser represents a multiple declaration
5790 -- case as a sequence of single declarations, using the More_Ids and
5791 -- Prev_Ids flags to preserve the original source form as described
5792 -- in the section on "Handling of Defining Identifier Lists".
5794 -- N_Formal_Object_Declaration
5795 -- Sloc points to first identifier
5796 -- Defining_Identifier (Node1)
5797 -- In_Present (Flag15)
5798 -- Out_Present (Flag17)
5799 -- Null_Exclusion_Present (Flag11) (set to False if not present)
5800 -- Subtype_Mark (Node4) (set to Empty if not present)
5801 -- Access_Definition (Node3) (set to Empty if not present)
5802 -- Default_Expression (Node5) (set to Empty if no default expression)
5803 -- More_Ids (Flag5) (set to False if no more identifiers in list)
5804 -- Prev_Ids (Flag6) (set to False if no previous identifiers in list)
5806 -----------------------------------
5807 -- 12.5 Formal Type Declaration --
5808 -----------------------------------
5810 -- FORMAL_TYPE_DECLARATION ::=
5811 -- type DEFINING_IDENTIFIER [DISCRIMINANT_PART]
5812 -- is FORMAL_TYPE_DEFINITION;
5814 -- N_Formal_Type_Declaration
5815 -- Sloc points to TYPE
5816 -- Defining_Identifier (Node1)
5817 -- Formal_Type_Definition (Node3)
5818 -- Discriminant_Specifications (List4) (set to No_List if no
5819 -- discriminant part)
5820 -- Unknown_Discriminants_Present (Flag13) set if (<>) discriminant
5822 ----------------------------------
5823 -- 12.5 Formal type definition --
5824 ----------------------------------
5826 -- FORMAL_TYPE_DEFINITION ::=
5827 -- FORMAL_PRIVATE_TYPE_DEFINITION
5828 -- | FORMAL_DERIVED_TYPE_DEFINITION
5829 -- | FORMAL_DISCRETE_TYPE_DEFINITION
5830 -- | FORMAL_SIGNED_INTEGER_TYPE_DEFINITION
5831 -- | FORMAL_MODULAR_TYPE_DEFINITION
5832 -- | FORMAL_FLOATING_POINT_DEFINITION
5833 -- | FORMAL_ORDINARY_FIXED_POINT_DEFINITION
5834 -- | FORMAL_DECIMAL_FIXED_POINT_DEFINITION
5835 -- | FORMAL_ARRAY_TYPE_DEFINITION
5836 -- | FORMAL_ACCESS_TYPE_DEFINITION
5837 -- | FORMAL_INTERFACE_TYPE_DEFINITION
5839 ---------------------------------------------
5840 -- 12.5.1 Formal Private Type Definition --
5841 ---------------------------------------------
5843 -- FORMAL_PRIVATE_TYPE_DEFINITION ::=
5844 -- [[abstract] tagged] [limited] private
5846 -- Note: TAGGED is not allowed in Ada 83 mode
5848 -- N_Formal_Private_Type_Definition
5849 -- Sloc points to PRIVATE
5850 -- Abstract_Present (Flag4)
5851 -- Tagged_Present (Flag15)
5852 -- Limited_Present (Flag17)
5854 --------------------------------------------
5855 -- 12.5.1 Formal Derived Type Definition --
5856 --------------------------------------------
5858 -- FORMAL_DERIVED_TYPE_DEFINITION ::=
5859 -- [abstract] [limited | synchronized]
5860 -- new SUBTYPE_MARK [[and INTERFACE_LIST] with private]
5861 -- Note: this construct is not allowed in Ada 83 mode
5863 -- N_Formal_Derived_Type_Definition
5864 -- Sloc points to NEW
5865 -- Subtype_Mark (Node4)
5866 -- Private_Present (Flag15)
5867 -- Abstract_Present (Flag4)
5868 -- Limited_Present (Flag17)
5869 -- Synchronized_Present (Flag7)
5870 -- Interface_List (List2) (set to No_List if none)
5872 ---------------------------------------------
5873 -- 12.5.2 Formal Discrete Type Definition --
5874 ---------------------------------------------
5876 -- FORMAL_DISCRETE_TYPE_DEFINITION ::= (<>)
5878 -- N_Formal_Discrete_Type_Definition
5881 ---------------------------------------------------
5882 -- 12.5.2 Formal Signed Integer Type Definition --
5883 ---------------------------------------------------
5885 -- FORMAL_SIGNED_INTEGER_TYPE_DEFINITION ::= range <>
5887 -- N_Formal_Signed_Integer_Type_Definition
5888 -- Sloc points to RANGE
5890 --------------------------------------------
5891 -- 12.5.2 Formal Modular Type Definition --
5892 --------------------------------------------
5894 -- FORMAL_MODULAR_TYPE_DEFINITION ::= mod <>
5896 -- N_Formal_Modular_Type_Definition
5897 -- Sloc points to MOD
5899 ----------------------------------------------
5900 -- 12.5.2 Formal Floating Point Definition --
5901 ----------------------------------------------
5903 -- FORMAL_FLOATING_POINT_DEFINITION ::= digits <>
5905 -- N_Formal_Floating_Point_Definition
5906 -- Sloc points to DIGITS
5908 ----------------------------------------------------
5909 -- 12.5.2 Formal Ordinary Fixed Point Definition --
5910 ----------------------------------------------------
5912 -- FORMAL_ORDINARY_FIXED_POINT_DEFINITION ::= delta <>
5914 -- N_Formal_Ordinary_Fixed_Point_Definition
5915 -- Sloc points to DELTA
5917 ---------------------------------------------------
5918 -- 12.5.2 Formal Decimal Fixed Point Definition --
5919 ---------------------------------------------------
5921 -- FORMAL_DECIMAL_FIXED_POINT_DEFINITION ::= delta <> digits <>
5923 -- Note: formal decimal fixed point definition not allowed in Ada 83
5925 -- N_Formal_Decimal_Fixed_Point_Definition
5926 -- Sloc points to DELTA
5928 ------------------------------------------
5929 -- 12.5.3 Formal Array Type Definition --
5930 ------------------------------------------
5932 -- FORMAL_ARRAY_TYPE_DEFINITION ::= ARRAY_TYPE_DEFINITION
5934 -------------------------------------------
5935 -- 12.5.4 Formal Access Type Definition --
5936 -------------------------------------------
5938 -- FORMAL_ACCESS_TYPE_DEFINITION ::= ACCESS_TYPE_DEFINITION
5940 ----------------------------------------------
5941 -- 12.5.5 Formal Interface Type Definition --
5942 ----------------------------------------------
5944 -- FORMAL_INTERFACE_TYPE_DEFINITION ::= INTERFACE_TYPE_DEFINITION
5946 -----------------------------------------
5947 -- 12.6 Formal Subprogram Declaration --
5948 -----------------------------------------
5950 -- FORMAL_SUBPROGRAM_DECLARATION ::=
5951 -- FORMAL_CONCRETE_SUBPROGRAM_DECLARATION
5952 -- | FORMAL_ABSTRACT_SUBPROGRAM_DECLARATION
5954 --------------------------------------------------
5955 -- 12.6 Formal Concrete Subprogram Declaration --
5956 --------------------------------------------------
5958 -- FORMAL_CONCRETE_SUBPROGRAM_DECLARATION ::=
5959 -- with SUBPROGRAM_SPECIFICATION [is SUBPROGRAM_DEFAULT];
5961 -- N_Formal_Concrete_Subprogram_Declaration
5962 -- Sloc points to WITH
5963 -- Specification (Node1)
5964 -- Default_Name (Node2) (set to Empty if no subprogram default)
5965 -- Box_Present (Flag15)
5967 -- Note: if no subprogram default is present, then Name is set
5968 -- to Empty, and Box_Present is False.
5970 --------------------------------------------------
5971 -- 12.6 Formal Abstract Subprogram Declaration --
5972 --------------------------------------------------
5974 -- FORMAL_ABSTRACT_SUBPROGRAM_DECLARATION ::=
5975 -- with SUBPROGRAM_SPECIFICATION is abstract [SUBPROGRAM_DEFAULT];
5977 -- N_Formal_Abstract_Subprogram_Declaration
5978 -- Sloc points to WITH
5979 -- Specification (Node1)
5980 -- Default_Name (Node2) (set to Empty if no subprogram default)
5981 -- Box_Present (Flag15)
5983 -- Note: if no subprogram default is present, then Name is set
5984 -- to Empty, and Box_Present is False.
5986 ------------------------------
5987 -- 12.6 Subprogram Default --
5988 ------------------------------
5990 -- SUBPROGRAM_DEFAULT ::= DEFAULT_NAME | <>
5992 -- There is no separate node in the tree for a subprogram default.
5993 -- Instead the parent (N_Formal_Concrete_Subprogram_Declaration
5994 -- or N_Formal_Abstract_Subprogram_Declaration) node contains the
5995 -- default name or box indication, as needed.
5997 ------------------------
5998 -- 12.6 Default Name --
5999 ------------------------
6001 -- DEFAULT_NAME ::= NAME
6003 --------------------------------------
6004 -- 12.7 Formal Package Declaration --
6005 --------------------------------------
6007 -- FORMAL_PACKAGE_DECLARATION ::=
6008 -- with package DEFINING_IDENTIFIER
6009 -- is new generic_package_NAME FORMAL_PACKAGE_ACTUAL_PART;
6011 -- Note: formal package declarations not allowed in Ada 83 mode
6013 -- N_Formal_Package_Declaration
6014 -- Sloc points to WITH
6015 -- Defining_Identifier (Node1)
6017 -- Generic_Associations (List3) (set to No_List if (<>) case or
6018 -- empty generic actual part)
6019 -- Box_Present (Flag15)
6020 -- Instance_Spec (Node5-Sem)
6021 -- ABE_Is_Certain (Flag18-Sem)
6023 --------------------------------------
6024 -- 12.7 Formal Package Actual Part --
6025 --------------------------------------
6027 -- FORMAL_PACKAGE_ACTUAL_PART ::=
6029 -- | [GENERIC_ACTUAL_PART]
6030 -- (FORMAL_PACKAGE_ASSOCIATION {. FORMAL_PACKAGE_ASSOCIATION}
6032 -- FORMAL_PACKAGE_ASSOCIATION ::=
6033 -- GENERIC_ASSOCIATION
6034 -- | GENERIC_FORMAL_PARAMETER_SELECTOR_NAME => <>
6036 -- There is no explicit node in the tree for a formal package actual
6037 -- part. Instead the information appears in the parent node (i.e. the
6038 -- formal package declaration node itself).
6040 -- There is no explicit node for a formal package association. All of
6041 -- them are represented either by a generic association, possibly with
6042 -- Box_Present, or by an N_Others_Choice.
6044 ---------------------------------
6045 -- 13.1 Representation clause --
6046 ---------------------------------
6048 -- REPRESENTATION_CLAUSE ::=
6049 -- ATTRIBUTE_DEFINITION_CLAUSE
6050 -- | ENUMERATION_REPRESENTATION_CLAUSE
6051 -- | RECORD_REPRESENTATION_CLAUSE
6054 ----------------------
6055 -- 13.1 Local Name --
6056 ----------------------
6060 -- | DIRECT_NAME'ATTRIBUTE_DESIGNATOR
6061 -- | library_unit_NAME
6063 -- The construct DIRECT_NAME'ATTRIBUTE_DESIGNATOR appears in the tree
6064 -- as an attribute reference, which has essentially the same form.
6066 ---------------------------------------
6067 -- 13.3 Attribute definition clause --
6068 ---------------------------------------
6070 -- ATTRIBUTE_DEFINITION_CLAUSE ::=
6071 -- for LOCAL_NAME'ATTRIBUTE_DESIGNATOR use EXPRESSION;
6072 -- | for LOCAL_NAME'ATTRIBUTE_DESIGNATOR use NAME;
6074 -- In Ada 83, the expression must be a simple expression and the
6075 -- local name must be a direct name.
6077 -- Note: the only attribute definition clause that is processed by
6078 -- gigi is an address clause. For all other cases, the information
6079 -- is extracted by the front end and either results in setting entity
6080 -- information, e.g. Esize for the Size clause, or in appropriate
6081 -- expansion actions (e.g. in the case of Storage_Size).
6083 -- For an address clause, Gigi constructs the appropriate addressing
6084 -- code. It also ensures that no aliasing optimizations are made
6085 -- for the object for which the address clause appears.
6087 -- Note: for an address clause used to achieve an overlay:
6091 -- for B'Address use A'Address;
6093 -- the above rule means that Gigi will ensure that no optimizations
6094 -- will be made for B that would violate the implementation advice
6095 -- of RM 13.3(19). However, this advice applies only to B and not
6096 -- to A, which seems unfortunate. The GNAT front end will mark the
6097 -- object A as volatile to also prevent unwanted optimization
6098 -- assumptions based on no aliasing being made for B.
6100 -- N_Attribute_Definition_Clause
6101 -- Sloc points to FOR
6102 -- Name (Node2) the local name
6103 -- Chars (Name1) the identifier name from the attribute designator
6104 -- Expression (Node3) the expression or name
6105 -- Entity (Node4-Sem)
6106 -- Next_Rep_Item (Node5-Sem)
6107 -- From_At_Mod (Flag4-Sem)
6108 -- Check_Address_Alignment (Flag11-Sem)
6110 ---------------------------------------------
6111 -- 13.4 Enumeration representation clause --
6112 ---------------------------------------------
6114 -- ENUMERATION_REPRESENTATION_CLAUSE ::=
6115 -- for first_subtype_LOCAL_NAME use ENUMERATION_AGGREGATE;
6117 -- In Ada 83, the name must be a direct name
6119 -- N_Enumeration_Representation_Clause
6120 -- Sloc points to FOR
6121 -- Identifier (Node1) direct name
6122 -- Array_Aggregate (Node3)
6123 -- Next_Rep_Item (Node5-Sem)
6125 ---------------------------------
6126 -- 13.4 Enumeration aggregate --
6127 ---------------------------------
6129 -- ENUMERATION_AGGREGATE ::= ARRAY_AGGREGATE
6131 ------------------------------------------
6132 -- 13.5.1 Record representation clause --
6133 ------------------------------------------
6135 -- RECORD_REPRESENTATION_CLAUSE ::=
6136 -- for first_subtype_LOCAL_NAME use
6137 -- record [MOD_CLAUSE]
6138 -- {COMPONENT_CLAUSE}
6141 -- Gigi restriction: Mod_Clause is always Empty (if present it is
6142 -- replaced by a corresponding Alignment attribute definition clause).
6144 -- Note: Component_Clauses can include pragmas
6146 -- N_Record_Representation_Clause
6147 -- Sloc points to FOR
6148 -- Identifier (Node1) direct name
6149 -- Mod_Clause (Node2) (set to Empty if no mod clause present)
6150 -- Component_Clauses (List3)
6151 -- Next_Rep_Item (Node5-Sem)
6153 ------------------------------
6154 -- 13.5.1 Component clause --
6155 ------------------------------
6157 -- COMPONENT_CLAUSE ::=
6158 -- component_LOCAL_NAME at POSITION
6159 -- range FIRST_BIT .. LAST_BIT;
6161 -- N_Component_Clause
6162 -- Sloc points to AT
6163 -- Component_Name (Node1) points to Name or Attribute_Reference
6165 -- First_Bit (Node3)
6168 ----------------------
6169 -- 13.5.1 Position --
6170 ----------------------
6172 -- POSITION ::= static_EXPRESSION
6174 -----------------------
6175 -- 13.5.1 First_Bit --
6176 -----------------------
6178 -- FIRST_BIT ::= static_SIMPLE_EXPRESSION
6180 ----------------------
6181 -- 13.5.1 Last_Bit --
6182 ----------------------
6184 -- LAST_BIT ::= static_SIMPLE_EXPRESSION
6186 --------------------------
6187 -- 13.8 Code statement --
6188 --------------------------
6190 -- CODE_STATEMENT ::= QUALIFIED_EXPRESSION;
6192 -- Note: in GNAT, the qualified expression has the form
6194 -- Asm_Insn'(Asm (...));
6196 -- See package System.Machine_Code in file s-maccod.ads for details on
6197 -- the allowed parameters to Asm. There are two ways this node can
6198 -- arise, as a code statement, in which case the expression is the
6199 -- qualified expression, or as a result of the expansion of an intrinsic
6200 -- call to the Asm or Asm_Input procedure.
6203 -- Sloc points to first token of the expression
6204 -- Expression (Node3)
6206 -- Note: package Exp_Code contains an abstract functional interface
6207 -- for use by Gigi in accessing the data from N_Code_Statement nodes.
6209 ------------------------
6210 -- 13.12 Restriction --
6211 ------------------------
6214 -- restriction_IDENTIFIER
6215 -- | restriction_parameter_IDENTIFIER => EXPRESSION
6217 -- There is no explicit node for restrictions. Instead the restriction
6218 -- appears in normal pragma syntax as a pragma argument association,
6219 -- which has the same syntactic form.
6221 --------------------------
6222 -- B.2 Shift Operators --
6223 --------------------------
6225 -- Calls to the intrinsic shift functions are converted to one of
6226 -- the following shift nodes, which have the form of normal binary
6227 -- operator names. Note that for a given shift operation, one node
6228 -- covers all possible types, as for normal operators.
6230 -- Note: it is perfectly permissible for the expander to generate
6231 -- shift operation nodes directly, in which case they will be analyzed
6232 -- and parsed in the usual manner.
6234 -- Sprint syntax: shift-function-name!(expr, count)
6236 -- Note: the Left_Opnd field holds the first argument (the value to
6237 -- be shifted). The Right_Opnd field holds the second argument (the
6238 -- shift count). The Chars field is the name of the intrinsic function.
6241 -- Sloc points to the function name
6242 -- plus fields for binary operator
6243 -- plus fields for expression
6244 -- Shift_Count_OK (Flag4-Sem)
6246 -- N_Op_Rotate_Right
6247 -- Sloc points to the function name
6248 -- plus fields for binary operator
6249 -- plus fields for expression
6250 -- Shift_Count_OK (Flag4-Sem)
6253 -- Sloc points to the function name
6254 -- plus fields for binary operator
6255 -- plus fields for expression
6256 -- Shift_Count_OK (Flag4-Sem)
6258 -- N_Op_Shift_Right_Arithmetic
6259 -- Sloc points to the function name
6260 -- plus fields for binary operator
6261 -- plus fields for expression
6262 -- Shift_Count_OK (Flag4-Sem)
6265 -- Sloc points to the function name
6266 -- plus fields for binary operator
6267 -- plus fields for expression
6268 -- Shift_Count_OK (Flag4-Sem)
6270 --------------------------
6271 -- Obsolescent Features --
6272 --------------------------
6274 -- The syntax descriptions and tree nodes for obsolescent features are
6275 -- grouped together, corresponding to their location in appendix I in
6276 -- the RM. However, parsing and semantic analysis for these constructs
6277 -- is located in an appropriate chapter (see individual notes).
6279 ---------------------------
6280 -- J.3 Delta Constraint --
6281 ---------------------------
6283 -- Note: the parse routine for this construct is located in section
6284 -- 3.5.9 of Par-Ch3, and semantic analysis is in Sem_Ch3, which is
6285 -- where delta constraint logically belongs.
6287 -- DELTA_CONSTRAINT ::= DELTA static_EXPRESSION [RANGE_CONSTRAINT]
6289 -- N_Delta_Constraint
6290 -- Sloc points to DELTA
6291 -- Delta_Expression (Node3)
6292 -- Range_Constraint (Node4) (set to Empty if not present)
6294 --------------------
6296 --------------------
6298 -- AT_CLAUSE ::= for DIRECT_NAME use at EXPRESSION;
6300 -- Note: the parse routine for this construct is located in Par-Ch13,
6301 -- and the semantic analysis is in Sem_Ch13, where at clause logically
6302 -- belongs if it were not obsolescent.
6304 -- Note: in Ada 83 the expression must be a simple expression
6306 -- Gigi restriction: This node never appears, it is rewritten as an
6307 -- address attribute definition clause.
6310 -- Sloc points to FOR
6311 -- Identifier (Node1)
6312 -- Expression (Node3)
6314 ---------------------
6315 -- J.8 Mod clause --
6316 ---------------------
6318 -- MOD_CLAUSE ::= at mod static_EXPRESSION;
6320 -- Note: the parse routine for this construct is located in Par-Ch13,
6321 -- and the semantic analysis is in Sem_Ch13, where mod clause logically
6322 -- belongs if it were not obsolescent.
6324 -- Note: in Ada 83, the expression must be a simple expression
6326 -- Gigi restriction: this node never appears. It is replaced
6327 -- by a corresponding Alignment attribute definition clause.
6329 -- Note: pragmas can appear before and after the MOD_CLAUSE since
6330 -- its name has "clause" in it. This is rather strange, but is quite
6331 -- definitely specified. The pragmas before are collected in the
6332 -- Pragmas_Before field of the mod clause node itself, and pragmas
6333 -- after are simply swallowed up in the list of component clauses.
6336 -- Sloc points to AT
6337 -- Expression (Node3)
6338 -- Pragmas_Before (List4) Pragmas before mod clause (No_List if none)
6340 --------------------
6341 -- Semantic Nodes --
6342 --------------------
6344 -- These semantic nodes are used to hold additional semantic information.
6345 -- They are inserted into the tree as a result of semantic processing.
6346 -- Although there are no legitimate source syntax constructions that
6347 -- correspond directly to these nodes, we need a source syntax for the
6348 -- reconstructed tree printed by Sprint, and the node descriptions here
6349 -- show this syntax.
6351 ----------------------------
6352 -- Conditional Expression --
6353 ----------------------------
6355 -- This node is used to represent an expression corresponding to the
6356 -- C construct (condition ? then-expression : else_expression), where
6357 -- Expressions is a three element list, whose first expression is the
6358 -- condition, and whose second and third expressions are the then and
6359 -- else expressions respectively.
6361 -- Note: the Then_Actions and Else_Actions fields are always set to
6362 -- No_List in the tree passed to Gigi. These fields are used only
6363 -- for temporary processing purposes in the expander.
6365 -- Sprint syntax: (if expr then expr else expr)
6367 -- N_Conditional_Expression
6368 -- Sloc points to related node
6369 -- Expressions (List1)
6370 -- Then_Actions (List2-Sem)
6371 -- Else_Actions (List3-Sem)
6372 -- plus fields for expression
6374 -- Note: in the case where a debug source file is generated, the Sloc
6375 -- for this node points to the IF keyword in the Sprint file output.
6381 -- The N_Expanded_Name node is used to represent a selected component
6382 -- name that has been resolved to an expanded name. The semantic phase
6383 -- replaces N_Selected_Component nodes that represent names by the use
6384 -- of this node, leaving the N_Selected_Component node used only when
6385 -- the prefix is a record or protected type.
6387 -- The fields of the N_Expanded_Name node are layed out identically
6388 -- to those of the N_Selected_Component node, allowing conversion of
6389 -- an expanded name node to a selected component node to be done
6390 -- easily, see Sinfo.CN.Change_Selected_Component_To_Expanded_Name.
6392 -- There is no special sprint syntax for an expanded name
6395 -- Sloc points to the period
6396 -- Chars (Name1) copy of Chars field of selector name
6398 -- Selector_Name (Node2)
6399 -- Entity (Node4-Sem)
6400 -- Associated_Node (Node4-Sem)
6401 -- Redundant_Use (Flag13-Sem)
6402 -- Has_Private_View (Flag11-Sem) set in generic units.
6403 -- plus fields for expression
6405 --------------------
6406 -- Free Statement --
6407 --------------------
6409 -- The N_Free_Statement node is generated as a result of a call to an
6410 -- instantiation of Unchecked_Deallocation. The instantiation of this
6411 -- generic is handled specially and generates this node directly.
6413 -- Sprint syntax: free expression
6416 -- Sloc is copied from the unchecked deallocation call
6417 -- Expression (Node3) argument to unchecked deallocation call
6418 -- Storage_Pool (Node1-Sem)
6419 -- Procedure_To_Call (Node2-Sem)
6420 -- Actual_Designated_Subtype (Node4-Sem)
6422 -- Note: in the case where a debug source file is generated, the Sloc
6423 -- for this node points to the FREE keyword in the Sprint file output.
6429 -- This node marks the point in a declarative part at which an entity
6430 -- declared therein becomes frozen. The expander places initialization
6431 -- procedures for types at those points. Gigi uses the freezing point
6432 -- to elaborate entities that may depend on previous private types.
6434 -- See the section in Einfo "Delayed Freezing and Elaboration" for
6435 -- a full description of the use of this node.
6437 -- The Entity field points back to the entity for the type (whose
6438 -- Freeze_Node field points back to this freeze node).
6440 -- The Actions field contains a list of declarations and statements
6441 -- generated by the expander which are associated with the freeze
6442 -- node, and are elaborated as though the freeze node were replaced
6443 -- by this sequence of actions.
6445 -- Note: the Sloc field in the freeze node references a construct
6446 -- associated with the freezing point. This is used for posting
6447 -- messages in some error/warning situations, e.g. the case where
6448 -- a primitive operation of a tagged type is declared too late.
6450 -- Sprint syntax: freeze entity-name [
6455 -- Sloc points near freeze point (see above special note)
6456 -- Entity (Node4-Sem)
6457 -- Access_Types_To_Process (Elist2-Sem) (set to No_Elist if none)
6458 -- TSS_Elist (Elist3-Sem) (set to No_Elist if no associated TSS's)
6459 -- Actions (List1) (set to No_List if no freeze actions)
6460 -- First_Subtype_Link (Node5-Sem) (set to Empty if no link)
6462 -- The Actions field holds actions associated with the freeze. These
6463 -- actions are elaborated at the point where the type is frozen.
6465 -- Note: in the case where a debug source file is generated, the Sloc
6466 -- for this node points to the FREEZE keyword in the Sprint file output.
6468 --------------------------------
6469 -- Implicit Label Declaration --
6470 --------------------------------
6472 -- An implicit label declaration is created for every occurrence of a
6473 -- label on a statement or a label on a block or loop. It is chained
6474 -- in the declarations of the innermost enclosing block as specified
6475 -- in RM section 5.1 (3).
6477 -- The Defining_Identifier is the actual identifier for the
6478 -- statement identifier. Note that the occurrence of the label
6479 -- is a reference, NOT the defining occurrence. The defining
6480 -- occurrence occurs at the head of the innermost enclosing
6481 -- block, and is represented by this node.
6483 -- Note: from the grammar, this might better be called an implicit
6484 -- statement identifier declaration, but the term we choose seems
6485 -- friendlier, since at least informally statement identifiers are
6486 -- called labels in both cases (i.e. when used in labels, and when
6487 -- used as the identifiers of blocks and loops).
6489 -- Note: although this is logically a semantic node, since it does
6490 -- not correspond directly to a source syntax construction, these
6491 -- nodes are actually created by the parser in a post pass done just
6492 -- after parsing is complete, before semantic analysis is started (see
6493 -- the Par.Labl subunit in file par-labl.adb).
6495 -- Sprint syntax: labelname : label;
6497 -- N_Implicit_Label_Declaration
6498 -- Sloc points to the << of the label
6499 -- Defining_Identifier (Node1)
6500 -- Label_Construct (Node2-Sem)
6502 -- Note: in the case where a debug source file is generated, the Sloc
6503 -- for this node points to the label name in the generated declaration.
6505 ---------------------
6506 -- Itype_Reference --
6507 ---------------------
6509 -- This node is used to create a reference to an Itype. The only
6510 -- purpose is to make sure that the Itype is defined if this is the
6513 -- A typical use of this node is when an Itype is to be referenced in
6514 -- two branches of an if statement. In this case it is important that
6515 -- the first use of the Itype not be inside the conditional, since
6516 -- then it might not be defined if the wrong branch of the if is
6517 -- taken in the case where the definition generates elaboration code.
6519 -- The Itype field points to the referenced Itype
6521 -- sprint syntax: reference itype-name
6523 -- N_Itype_Reference
6524 -- Sloc points to the node generating the reference
6525 -- Itype (Node1-Sem)
6527 -- Note: in the case where a debug source file is generated, the Sloc
6528 -- for this node points to the REFERENCE keyword in the file output.
6530 ---------------------
6531 -- Raise_xxx_Error --
6532 ---------------------
6534 -- One of these nodes is created during semantic analysis to replace
6535 -- a node for an expression that is determined to definitely raise
6536 -- the corresponding exception.
6538 -- The N_Raise_xxx_Error node may also stand alone in place
6539 -- of a declaration or statement, in which case it simply causes
6540 -- the exception to be raised (i.e. it is equivalent to a raise
6541 -- statement that raises the corresponding exception). This use
6542 -- is distinguished by the fact that the Etype in this case is
6543 -- Standard_Void_Type, In the subexprssion case, the Etype is the
6544 -- same as the type of the subexpression which it replaces.
6546 -- If Condition is empty, then the raise is unconditional. If the
6547 -- Condition field is non-empty, it is a boolean expression which
6548 -- is first evaluated, and the exception is raised only if the
6549 -- value of the expression is True. In the unconditional case, the
6550 -- creation of this node is usually accompanied by a warning message
6551 -- error. The creation of this node will usually be accompanied by a
6552 -- message (unless it appears within the right operand of a short
6553 -- circuit form whose left argument is static and decisively
6554 -- eliminates elaboration of the raise operation. The condition field
6555 -- can ONLY be present when the node is used as a statement form, it
6556 -- may NOT be present in the case where the node appears within an
6559 -- The exception is generated with a message that contains the
6560 -- file name and line number, and then appended text. The Reason
6561 -- code shows the text to be added. The Reason code is an element
6562 -- of the type Types.RT_Exception_Code, and indicates both the
6563 -- message to be added, and the exception to be raised (which must
6564 -- match the node type). The value is stored by storing a Uint which
6565 -- is the Pos value of the enumeration element in this type.
6567 -- Gigi restriction: This expander ensures that the type of the
6568 -- Condition field is always Standard.Boolean, even if the type
6569 -- in the source is some non-standard boolean type.
6571 -- Sprint syntax: [xxx_error "msg"]
6572 -- or: [xxx_error when condition "msg"]
6574 -- N_Raise_Constraint_Error
6575 -- Sloc references related construct
6576 -- Condition (Node1) (set to Empty if no condition)
6578 -- plus fields for expression
6580 -- N_Raise_Program_Error
6581 -- Sloc references related construct
6582 -- Condition (Node1) (set to Empty if no condition)
6584 -- plus fields for expression
6586 -- N_Raise_Storage_Error
6587 -- Sloc references related construct
6588 -- Condition (Node1) (set to Empty if no condition)
6590 -- plus fields for expression
6592 -- Note: Sloc is copied from the expression generating the exception.
6593 -- In the case where a debug source file is generated, the Sloc for
6594 -- this node points to the left bracket in the Sprint file output.
6596 -- Note: the back end may be required to translate these nodes into
6597 -- appropriate goto statements. See description of N_Push/Pop_xxx_Label.
6599 ---------------------------------------------
6600 -- Optimization of Exception Raise to Goto --
6601 ---------------------------------------------
6603 -- In some cases, the front end will determine that any exception raised
6604 -- by the back end for a certain exception should be transformed into a
6607 -- There are three kinds of exceptions raised by the back end (note that
6608 -- for this purpose we consider gigi to be part of the back end in the
6611 -- 1. Exceptions resulting from N_Raise_xxx_Error nodes
6612 -- 2. Exceptions from checks triggered by Do_xxx_Check flags
6613 -- 3. Other cases not specifically marked by the front end
6615 -- Normally all such exceptions are translated into calls to the proper
6616 -- Rcheck_xx procedure, where xx encodes both the exception to be raised
6617 -- and the exception message.
6619 -- The front end may determine that for a particular sequence of code,
6620 -- exceptions in any of these three categories for a particular builtin
6621 -- exception should result in a goto, rather than a call to Rcheck_xx.
6622 -- The exact sequence to be generated is:
6624 -- Local_Raise (exception'Identity);
6627 -- The front end marks such a sequence of code by bracketing it with
6628 -- push and pop nodes:
6630 -- N_Push_xxx_Label (referencing the label)
6632 -- (code where transformation is expected for exception xxx)
6636 -- The use of push/pop reflects the fact that such regions can properly
6637 -- nest, and one special case is a subregion in which no transformation
6638 -- is allowed. Such a region is marked by a N_Push_xxx_Label node whose
6639 -- Exception_Label field is Empty.
6641 -- N_Push_Constraint_Error_Label
6642 -- Sloc references first statement in region covered
6643 -- Exception_Label (Node5-Sem)
6645 -- N_Push_Program_Error_Label
6646 -- Sloc references first statement in region covered
6647 -- Exception_Label (Node5-Sem)
6649 -- N_Push_Storage_Error_Label
6650 -- Sloc references first statement in region covered
6651 -- Exception_Label (Node5-Sem)
6653 -- N_Pop_Constraint_Error_Label
6654 -- Sloc references last statement in region covered
6656 -- N_Pop_Program_Error_Label
6657 -- Sloc references last statement in region covered
6659 -- N_Pop_Storage_Error_Label
6660 -- Sloc references last statement in region covered
6666 -- For a number of purposes, we need to construct references to objects.
6667 -- These references are subsequently treated as normal access values.
6668 -- An example is the construction of the parameter block passed to a
6669 -- task entry. The N_Reference node is provided for this purpose. It is
6670 -- similar in effect to the use of the Unrestricted_Access attribute,
6671 -- and like Unrestricted_Access can be applied to objects which would
6672 -- not be valid prefixes for the Unchecked_Access attribute (e.g.
6673 -- objects which are not aliased, and slices). In addition it can be
6674 -- applied to composite type values as well as objects, including string
6675 -- values and aggregates.
6677 -- Note: we use the Prefix field for this expression so that the
6678 -- resulting node can be treated using common code with the attribute
6679 -- nodes for the 'Access and related attributes. Logically it would make
6680 -- more sense to call it an Expression field, but then we would have to
6681 -- special case the treatment of the N_Reference node.
6683 -- Sprint syntax: prefix'reference
6686 -- Sloc is copied from the expression
6688 -- plus fields for expression
6690 -- Note: in the case where a debug source file is generated, the Sloc
6691 -- for this node points to the quote in the Sprint file output.
6693 ---------------------
6694 -- Subprogram_Info --
6695 ---------------------
6697 -- This node generates the appropriate Subprogram_Info value for a
6698 -- given procedure. See Ada.Exceptions for further details
6700 -- Sprint syntax: subprog'subprogram_info
6702 -- N_Subprogram_Info
6703 -- Sloc points to the entity for the procedure
6704 -- Identifier (Node1) identifier referencing the procedure
6705 -- Etype (Node5-Sem) type (always set to Ada.Exceptions.Code_Loc
6707 -- Note: in the case where a debug source file is generated, the Sloc
6708 -- for this node points to the quote in the Sprint file output.
6710 --------------------------
6711 -- Unchecked Expression --
6712 --------------------------
6714 -- An unchecked expression is one that must be analyzed and resolved
6715 -- with all checks off, regardless of the current setting of scope
6718 -- Sprint syntax: `(expression)
6720 -- Note: this node is always removed from the tree (and replaced by
6721 -- its constituent expression) on completion of analysis, so it only
6722 -- appears in intermediate trees, and will never be seen by Gigi.
6724 -- N_Unchecked_Expression
6725 -- Sloc is a copy of the Sloc of the expression
6726 -- Expression (Node3)
6727 -- plus fields for expression
6729 -- Note: in the case where a debug source file is generated, the Sloc
6730 -- for this node points to the back quote in the Sprint file output.
6732 -------------------------------
6733 -- Unchecked Type Conversion --
6734 -------------------------------
6736 -- An unchecked type conversion node represents the semantic action
6737 -- corresponding to a call to an instantiation of Unchecked_Conversion.
6738 -- It is generated as a result of actual use of Unchecked_Conversion
6739 -- and also the expander generates unchecked type conversion nodes
6740 -- directly for expansion of complex semantic actions.
6742 -- Note: an unchecked type conversion is a variable as far as the
6743 -- semantics are concerned, which is convenient for the expander.
6744 -- This does not change what Ada source programs are legal, since
6745 -- clearly a function call to an instantiation of Unchecked_Conversion
6746 -- is not a variable in any case.
6748 -- Sprint syntax: subtype-mark!(expression)
6750 -- N_Unchecked_Type_Conversion
6751 -- Sloc points to related node in source
6752 -- Subtype_Mark (Node4)
6753 -- Expression (Node3)
6754 -- Kill_Range_Check (Flag11-Sem)
6755 -- No_Truncation (Flag17-Sem)
6756 -- plus fields for expression
6758 -- Note: in the case where a debug source file is generated, the Sloc
6759 -- for this node points to the exclamation in the Sprint file output.
6761 -----------------------------------
6762 -- Validate_Unchecked_Conversion --
6763 -----------------------------------
6765 -- The front end does most of the validation of unchecked conversion,
6766 -- including checking sizes (this is done after the back end is called
6767 -- to take advantage of back-annotation of calculated sizes).
6769 -- The front end also deals with specific cases that are not allowed
6770 -- e.g. involving unconstrained array types.
6772 -- For the case of the standard gigi backend, this means that all
6773 -- checks are done in the front-end.
6775 -- However, in the case of specialized back-ends, notably the JVM
6776 -- backend for JGNAT, additional requirements and restrictions apply
6777 -- to unchecked conversion, and these are most conveniently performed
6778 -- in the specialized back-end.
6780 -- To accommodate this requirement, for such back ends, the following
6781 -- special node is generated recording an unchecked conversion that
6782 -- needs to be validated. The back end should post an appropriate
6783 -- error message if the unchecked conversion is invalid or warrants
6784 -- a special warning message.
6786 -- Source_Type and Target_Type point to the entities for the two
6787 -- types involved in the unchecked conversion instantiation that
6788 -- is to be validated.
6790 -- Sprint syntax: validate Unchecked_Conversion (source, target);
6792 -- N_Validate_Unchecked_Conversion
6793 -- Sloc points to instantiation (location for warning message)
6794 -- Source_Type (Node1-Sem)
6795 -- Target_Type (Node2-Sem)
6797 -- Note: in the case where a debug source file is generated, the Sloc
6798 -- for this node points to the VALIDATE keyword in the file output.
6804 -- Used as the contents of the Nkind field of the dummy Empty node
6805 -- and in some other situations to indicate an uninitialized value.
6808 -- Chars (Name1) is set to No_Name
6814 -- Used as the contents of the Nkind field of the dummy Error node.
6815 -- Has an Etype field, which gets set to Any_Type later on, to help
6816 -- error recovery (Error_Posted is also set in the Error node).
6819 -- Chars (Name1) is set to Error_Name
6820 -- Etype (Node5-Sem)
6822 --------------------------
6823 -- Node Type Definition --
6824 --------------------------
6826 -- The following is the definition of the Node_Kind type. As previously
6827 -- discussed, this is separated off to allow rearrangement of the order
6828 -- to facilitiate definition of subtype ranges. The comments show the
6829 -- subtype classes which apply to each set of node kinds. The first
6830 -- entry in the comment characterizes the following list of nodes.
6835 -- N_Representation_Clause
6839 N_Enumeration_Representation_Clause,
6841 N_Record_Representation_Clause,
6843 -- N_Representation_Clause, N_Has_Chars
6845 N_Attribute_Definition_Clause,
6851 N_Pragma_Argument_Association,
6857 -- N_Entity, N_Has_Etype, N_Has_Chars
6859 N_Defining_Character_Literal,
6860 N_Defining_Identifier,
6861 N_Defining_Operator_Symbol,
6863 -- N_Subexpr, N_Has_Etype, N_Has_Chars, N_Has_Entity
6867 -- N_Direct_Name, N_Subexpr, N_Has_Etype,
6868 -- N_Has_Chars, N_Has_Entity
6873 -- N_Direct_Name, N_Subexpr, N_Has_Etype,
6874 -- N_Has_Chars, N_Has_Entity
6876 N_Character_Literal,
6878 -- N_Binary_Op, N_Op, N_Subexpr,
6879 -- N_Has_Etype, N_Has_Chars, N_Has_Entity
6886 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Treat_Fixed_As_Integer
6887 -- N_Has_Etype, N_Has_Chars, N_Has_Entity, N_Multiplying_Operator
6894 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Etype
6895 -- N_Has_Entity, N_Has_Chars, N_Op_Boolean
6899 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Etype
6900 -- N_Has_Entity, N_Has_Chars, N_Op_Boolean, N_Op_Compare
6909 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Etype
6910 -- N_Has_Entity, N_Has_Chars, N_Op_Boolean
6915 -- N_Binary_Op, N_Op, N_Subexpr, N_Has_Etype,
6916 -- N_Op_Shift, N_Has_Chars, N_Has_Entity
6922 N_Op_Shift_Right_Arithmetic,
6924 -- N_Unary_Op, N_Op, N_Subexpr, N_Has_Etype,
6925 -- N_Has_Chars, N_Has_Entity
6932 -- N_Subexpr, N_Has_Etype, N_Has_Entity
6934 N_Attribute_Reference,
6936 -- N_Subexpr, N_Has_Etype, N_Membership_Test
6941 -- N_Subexpr, N_Has_Etype
6944 N_Conditional_Expression,
6945 N_Explicit_Dereference,
6948 N_Indexed_Component,
6953 N_Procedure_Call_Statement,
6954 N_Qualified_Expression,
6956 -- N_Raise_xxx_Error, N_Subexpr, N_Has_Etype
6958 N_Raise_Constraint_Error,
6959 N_Raise_Program_Error,
6960 N_Raise_Storage_Error,
6962 -- N_Subexpr, N_Has_Etype
6966 N_Extension_Aggregate,
6970 N_Selected_Component,
6975 N_Unchecked_Expression,
6976 N_Unchecked_Type_Conversion,
6980 N_Subtype_Indication,
6984 N_Component_Declaration,
6985 N_Entry_Declaration,
6986 N_Formal_Object_Declaration,
6987 N_Formal_Type_Declaration,
6988 N_Full_Type_Declaration,
6989 N_Incomplete_Type_Declaration,
6990 N_Loop_Parameter_Specification,
6991 N_Object_Declaration,
6992 N_Protected_Type_Declaration,
6993 N_Private_Extension_Declaration,
6994 N_Private_Type_Declaration,
6995 N_Subtype_Declaration,
6997 -- N_Subprogram_Specification, N_Declaration
6999 N_Function_Specification,
7000 N_Procedure_Specification,
7002 -- N_Access_To_Subprogram_Definition
7004 N_Access_Function_Definition,
7005 N_Access_Procedure_Definition,
7007 -- N_Later_Decl_Item
7009 N_Task_Type_Declaration,
7011 -- N_Body_Stub, N_Later_Decl_Item
7013 N_Package_Body_Stub,
7014 N_Protected_Body_Stub,
7015 N_Subprogram_Body_Stub,
7018 -- N_Generic_Instantiation, N_Later_Decl_Item
7019 -- N_Subprogram_Instantiation
7021 N_Function_Instantiation,
7022 N_Procedure_Instantiation,
7024 -- N_Generic_Instantiation, N_Later_Decl_Item
7026 N_Package_Instantiation,
7028 -- N_Unit_Body, N_Later_Decl_Item, N_Proper_Body
7033 -- N_Later_Decl_Item, N_Proper_Body
7038 -- N_Later_Decl_Item
7040 N_Implicit_Label_Declaration,
7041 N_Package_Declaration,
7042 N_Single_Task_Declaration,
7043 N_Subprogram_Declaration,
7044 N_Use_Package_Clause,
7046 -- N_Generic_Declaration, N_Later_Decl_Item
7048 N_Generic_Package_Declaration,
7049 N_Generic_Subprogram_Declaration,
7051 -- N_Array_Type_Definition
7053 N_Constrained_Array_Definition,
7054 N_Unconstrained_Array_Definition,
7056 -- N_Renaming_Declaration
7058 N_Exception_Renaming_Declaration,
7059 N_Object_Renaming_Declaration,
7060 N_Package_Renaming_Declaration,
7061 N_Subprogram_Renaming_Declaration,
7063 -- N_Generic_Renaming_Declaration, N_Renaming_Declaration
7065 N_Generic_Function_Renaming_Declaration,
7066 N_Generic_Package_Renaming_Declaration,
7067 N_Generic_Procedure_Renaming_Declaration,
7069 -- N_Statement_Other_Than_Procedure_Call
7073 N_Assignment_Statement,
7074 N_Asynchronous_Select,
7078 N_Conditional_Entry_Call,
7080 -- N_Statement_Other_Than_Procedure_Call. N_Delay_Statement
7082 N_Delay_Relative_Statement,
7083 N_Delay_Until_Statement,
7085 -- N_Statement_Other_Than_Procedure_Call
7087 N_Entry_Call_Statement,
7093 N_Requeue_Statement,
7095 N_Extended_Return_Statement,
7099 -- N_Statement_Other_Than_Procedure_Call, N_Has_Condition
7106 N_Accept_Alternative,
7107 N_Delay_Alternative,
7109 N_Entry_Body_Formal_Part,
7111 N_Terminate_Alternative,
7113 -- N_Formal_Subprogram_Declaration
7115 N_Formal_Abstract_Subprogram_Declaration,
7116 N_Formal_Concrete_Subprogram_Declaration,
7118 -- N_Push_xxx_Label, N_Push_Pop_xxx_Label
7120 N_Push_Constraint_Error_Label,
7121 N_Push_Program_Error_Label,
7122 N_Push_Storage_Error_Label,
7124 -- N_Pop_xxx_Label, N_Push_Pop_xxx_Label
7126 N_Pop_Constraint_Error_Label,
7127 N_Pop_Program_Error_Label,
7128 N_Pop_Storage_Error_Label,
7130 -- Other nodes (not part of any subtype class)
7133 N_Abstract_Subprogram_Declaration,
7134 N_Access_Definition,
7135 N_Access_To_Object_Definition,
7136 N_Case_Statement_Alternative,
7138 N_Compilation_Unit_Aux,
7139 N_Component_Association,
7140 N_Component_Definition,
7142 N_Derived_Type_Definition,
7143 N_Decimal_Fixed_Point_Definition,
7144 N_Defining_Program_Unit_Name,
7147 N_Digits_Constraint,
7148 N_Discriminant_Association,
7149 N_Discriminant_Specification,
7150 N_Enumeration_Type_Definition,
7152 N_Entry_Call_Alternative,
7153 N_Entry_Index_Specification,
7154 N_Exception_Declaration,
7155 N_Exception_Handler,
7156 N_Floating_Point_Definition,
7157 N_Formal_Decimal_Fixed_Point_Definition,
7158 N_Formal_Derived_Type_Definition,
7159 N_Formal_Discrete_Type_Definition,
7160 N_Formal_Floating_Point_Definition,
7161 N_Formal_Modular_Type_Definition,
7162 N_Formal_Ordinary_Fixed_Point_Definition,
7163 N_Formal_Package_Declaration,
7164 N_Formal_Private_Type_Definition,
7165 N_Formal_Signed_Integer_Type_Definition,
7167 N_Generic_Association,
7168 N_Handled_Sequence_Of_Statements,
7169 N_Index_Or_Discriminant_Constraint,
7172 N_Modular_Type_Definition,
7173 N_Number_Declaration,
7174 N_Ordinary_Fixed_Point_Definition,
7176 N_Package_Specification,
7177 N_Parameter_Association,
7178 N_Parameter_Specification,
7179 N_Protected_Definition,
7181 N_Real_Range_Specification,
7182 N_Record_Definition,
7183 N_Signed_Integer_Type_Definition,
7184 N_Single_Protected_Declaration,
7187 N_Triggering_Alternative,
7189 N_Validate_Unchecked_Conversion,
7195 for Node_Kind'Size use 8;
7196 -- The data structures in Atree assume this!
7198 ----------------------------
7199 -- Node Class Definitions --
7200 ----------------------------
7202 subtype N_Access_To_Subprogram_Definition is Node_Kind range
7203 N_Access_Function_Definition ..
7204 N_Access_Procedure_Definition;
7206 subtype N_Array_Type_Definition is Node_Kind range
7207 N_Constrained_Array_Definition ..
7208 N_Unconstrained_Array_Definition;
7210 subtype N_Binary_Op is Node_Kind range
7212 N_Op_Shift_Right_Arithmetic;
7214 subtype N_Body_Stub is Node_Kind range
7215 N_Package_Body_Stub ..
7218 subtype N_Declaration is Node_Kind range
7219 N_Component_Declaration ..
7220 N_Procedure_Specification;
7221 -- Note: this includes all constructs normally thought of as declarations
7222 -- except those which are separately grouped as later declarations.
7224 subtype N_Delay_Statement is Node_Kind range
7225 N_Delay_Relative_Statement ..
7226 N_Delay_Until_Statement;
7228 subtype N_Direct_Name is Node_Kind range
7230 N_Character_Literal;
7232 subtype N_Entity is Node_Kind range
7233 N_Defining_Character_Literal ..
7234 N_Defining_Operator_Symbol;
7236 subtype N_Formal_Subprogram_Declaration is Node_Kind range
7237 N_Formal_Abstract_Subprogram_Declaration ..
7238 N_Formal_Concrete_Subprogram_Declaration;
7240 subtype N_Generic_Declaration is Node_Kind range
7241 N_Generic_Package_Declaration ..
7242 N_Generic_Subprogram_Declaration;
7244 subtype N_Generic_Instantiation is Node_Kind range
7245 N_Function_Instantiation ..
7246 N_Package_Instantiation;
7248 subtype N_Generic_Renaming_Declaration is Node_Kind range
7249 N_Generic_Function_Renaming_Declaration ..
7250 N_Generic_Procedure_Renaming_Declaration;
7252 subtype N_Has_Chars is Node_Kind range
7253 N_Attribute_Definition_Clause ..
7256 subtype N_Has_Entity is Node_Kind range
7258 N_Attribute_Reference;
7259 -- Nodes that have Entity fields
7260 -- Warning: DOES NOT INCLUDE N_Freeze_Entity!
7262 subtype N_Has_Etype is Node_Kind range
7264 N_Subtype_Indication;
7266 subtype N_Has_Treat_Fixed_As_Integer is Node_Kind range
7270 subtype N_Multiplying_Operator is Node_Kind range
7274 subtype N_Later_Decl_Item is Node_Kind range
7275 N_Task_Type_Declaration ..
7276 N_Generic_Subprogram_Declaration;
7277 -- Note: this is Ada 83 relevant only (see Ada 83 RM 3.9 (2)) and
7278 -- includes only those items which can appear as later declarative
7279 -- items. This also includes N_Implicit_Label_Declaration which is
7280 -- not specifically in the grammar but may appear as a valid later
7281 -- declarative items. It does NOT include N_Pragma which can also
7282 -- appear among later declarative items. It does however include
7283 -- N_Protected_Body, which is a bit peculiar, but harmless since
7284 -- this cannot appear in Ada 83 mode anyway.
7286 subtype N_Membership_Test is Node_Kind range
7290 subtype N_Op is Node_Kind range
7294 subtype N_Op_Boolean is Node_Kind range
7297 -- Binary operators which take operands of a boolean type, and yield
7298 -- a result of a boolean type.
7300 subtype N_Op_Compare is Node_Kind range
7304 subtype N_Op_Shift is Node_Kind range
7306 N_Op_Shift_Right_Arithmetic;
7308 subtype N_Proper_Body is Node_Kind range
7312 subtype N_Push_xxx_Label is Node_Kind range
7313 N_Push_Constraint_Error_Label ..
7314 N_Push_Storage_Error_Label;
7316 subtype N_Pop_xxx_Label is Node_Kind range
7317 N_Pop_Constraint_Error_Label ..
7318 N_Pop_Storage_Error_Label;
7320 subtype N_Push_Pop_xxx_Label is Node_Kind range
7321 N_Push_Constraint_Error_Label ..
7322 N_Pop_Storage_Error_Label;
7324 subtype N_Raise_xxx_Error is Node_Kind range
7325 N_Raise_Constraint_Error ..
7326 N_Raise_Storage_Error;
7328 subtype N_Renaming_Declaration is Node_Kind range
7329 N_Exception_Renaming_Declaration ..
7330 N_Generic_Procedure_Renaming_Declaration;
7332 subtype N_Representation_Clause is Node_Kind range
7334 N_Attribute_Definition_Clause;
7336 subtype N_Statement_Other_Than_Procedure_Call is Node_Kind range
7337 N_Abort_Statement ..
7339 -- Note that this includes all statement types except for the cases of the
7340 -- N_Procedure_Call_Statement which is considered to be a subexpression
7341 -- (since overloading is possible, so it needs to go through the normal
7342 -- overloading resolution for expressions).
7344 subtype N_Subprogram_Instantiation is Node_Kind range
7345 N_Function_Instantiation ..
7346 N_Procedure_Instantiation;
7348 subtype N_Has_Condition is Node_Kind range
7350 N_Terminate_Alternative;
7351 -- Nodes with condition fields (does not include N_Raise_xxx_Error)
7353 subtype N_Subexpr is Node_Kind range
7355 N_Unchecked_Type_Conversion;
7356 -- Nodes with expression fields
7358 subtype N_Subprogram_Specification is Node_Kind range
7359 N_Function_Specification ..
7360 N_Procedure_Specification;
7362 subtype N_Unary_Op is Node_Kind range
7366 subtype N_Unit_Body is Node_Kind range
7370 ---------------------------
7371 -- Node Access Functions --
7372 ---------------------------
7374 -- The following functions return the contents of the indicated field of
7375 -- the node referenced by the argument, which is a Node_Id. They provide
7376 -- logical access to fields in the node which could be accessed using the
7377 -- Atree.Unchecked_Access package, but the idea is always to use these
7378 -- higher level routines which preserve strong typing. In debug mode,
7379 -- these routines check that they are being applied to an appropriate
7380 -- node, as well as checking that the node is in range.
7382 function ABE_Is_Certain
7383 (N : Node_Id) return Boolean; -- Flag18
7385 function Abort_Present
7386 (N : Node_Id) return Boolean; -- Flag15
7388 function Abortable_Part
7389 (N : Node_Id) return Node_Id; -- Node2
7391 function Abstract_Present
7392 (N : Node_Id) return Boolean; -- Flag4
7394 function Accept_Handler_Records
7395 (N : Node_Id) return List_Id; -- List5
7397 function Accept_Statement
7398 (N : Node_Id) return Node_Id; -- Node2
7400 function Access_Definition
7401 (N : Node_Id) return Node_Id; -- Node3
7403 function Access_To_Subprogram_Definition
7404 (N : Node_Id) return Node_Id; -- Node3
7406 function Access_Types_To_Process
7407 (N : Node_Id) return Elist_Id; -- Elist2
7410 (N : Node_Id) return List_Id; -- List1
7412 function Activation_Chain_Entity
7413 (N : Node_Id) return Node_Id; -- Node3
7415 function Acts_As_Spec
7416 (N : Node_Id) return Boolean; -- Flag4
7418 function Actual_Designated_Subtype
7419 (N : Node_Id) return Node_Id; -- Node4
7421 function Aggregate_Bounds
7422 (N : Node_Id) return Node_Id; -- Node3
7424 function Aliased_Present
7425 (N : Node_Id) return Boolean; -- Flag4
7428 (N : Node_Id) return Boolean; -- Flag11
7430 function All_Present
7431 (N : Node_Id) return Boolean; -- Flag15
7433 function Alternatives
7434 (N : Node_Id) return List_Id; -- List4
7436 function Ancestor_Part
7437 (N : Node_Id) return Node_Id; -- Node3
7439 function Array_Aggregate
7440 (N : Node_Id) return Node_Id; -- Node3
7442 function Assignment_OK
7443 (N : Node_Id) return Boolean; -- Flag15
7445 function Associated_Node
7446 (N : Node_Id) return Node_Id; -- Node4
7448 function At_End_Proc
7449 (N : Node_Id) return Node_Id; -- Node1
7451 function Attribute_Name
7452 (N : Node_Id) return Name_Id; -- Name2
7454 function Aux_Decls_Node
7455 (N : Node_Id) return Node_Id; -- Node5
7457 function Backwards_OK
7458 (N : Node_Id) return Boolean; -- Flag6
7460 function Bad_Is_Detected
7461 (N : Node_Id) return Boolean; -- Flag15
7464 (N : Node_Id) return Boolean; -- Flag5
7466 function Body_Required
7467 (N : Node_Id) return Boolean; -- Flag13
7469 function Body_To_Inline
7470 (N : Node_Id) return Node_Id; -- Node3
7472 function Box_Present
7473 (N : Node_Id) return Boolean; -- Flag15
7475 function Char_Literal_Value
7476 (N : Node_Id) return Uint; -- Uint2
7479 (N : Node_Id) return Name_Id; -- Name1
7481 function Check_Address_Alignment
7482 (N : Node_Id) return Boolean; -- Flag11
7484 function Choice_Parameter
7485 (N : Node_Id) return Node_Id; -- Node2
7488 (N : Node_Id) return List_Id; -- List1
7490 function Coextensions
7491 (N : Node_Id) return Elist_Id; -- Elist4
7493 function Comes_From_Extended_Return_Statement
7494 (N : Node_Id) return Boolean; -- Flag18
7496 function Compile_Time_Known_Aggregate
7497 (N : Node_Id) return Boolean; -- Flag18
7499 function Component_Associations
7500 (N : Node_Id) return List_Id; -- List2
7502 function Component_Clauses
7503 (N : Node_Id) return List_Id; -- List3
7505 function Component_Definition
7506 (N : Node_Id) return Node_Id; -- Node4
7508 function Component_Items
7509 (N : Node_Id) return List_Id; -- List3
7511 function Component_List
7512 (N : Node_Id) return Node_Id; -- Node1
7514 function Component_Name
7515 (N : Node_Id) return Node_Id; -- Node1
7518 (N : Node_Id) return Node_Id; -- Node1
7520 function Condition_Actions
7521 (N : Node_Id) return List_Id; -- List3
7523 function Config_Pragmas
7524 (N : Node_Id) return List_Id; -- List4
7526 function Constant_Present
7527 (N : Node_Id) return Boolean; -- Flag17
7530 (N : Node_Id) return Node_Id; -- Node3
7532 function Constraints
7533 (N : Node_Id) return List_Id; -- List1
7535 function Context_Installed
7536 (N : Node_Id) return Boolean; -- Flag13
7538 function Context_Items
7539 (N : Node_Id) return List_Id; -- List1
7541 function Controlling_Argument
7542 (N : Node_Id) return Node_Id; -- Node1
7544 function Conversion_OK
7545 (N : Node_Id) return Boolean; -- Flag14
7547 function Corresponding_Body
7548 (N : Node_Id) return Node_Id; -- Node5
7550 function Corresponding_Formal_Spec
7551 (N : Node_Id) return Node_Id; -- Node3
7553 function Corresponding_Generic_Association
7554 (N : Node_Id) return Node_Id; -- Node5
7556 function Corresponding_Integer_Value
7557 (N : Node_Id) return Uint; -- Uint4
7559 function Corresponding_Spec
7560 (N : Node_Id) return Node_Id; -- Node5
7562 function Corresponding_Stub
7563 (N : Node_Id) return Node_Id; -- Node3
7565 function Dcheck_Function
7566 (N : Node_Id) return Entity_Id; -- Node5
7568 function Debug_Statement
7569 (N : Node_Id) return Node_Id; -- Node3
7571 function Declarations
7572 (N : Node_Id) return List_Id; -- List2
7574 function Default_Expression
7575 (N : Node_Id) return Node_Id; -- Node5
7577 function Default_Name
7578 (N : Node_Id) return Node_Id; -- Node2
7580 function Defining_Identifier
7581 (N : Node_Id) return Entity_Id; -- Node1
7583 function Defining_Unit_Name
7584 (N : Node_Id) return Node_Id; -- Node1
7586 function Delay_Alternative
7587 (N : Node_Id) return Node_Id; -- Node4
7589 function Delay_Statement
7590 (N : Node_Id) return Node_Id; -- Node2
7592 function Delta_Expression
7593 (N : Node_Id) return Node_Id; -- Node3
7595 function Digits_Expression
7596 (N : Node_Id) return Node_Id; -- Node2
7598 function Discr_Check_Funcs_Built
7599 (N : Node_Id) return Boolean; -- Flag11
7601 function Discrete_Choices
7602 (N : Node_Id) return List_Id; -- List4
7604 function Discrete_Range
7605 (N : Node_Id) return Node_Id; -- Node4
7607 function Discrete_Subtype_Definition
7608 (N : Node_Id) return Node_Id; -- Node4
7610 function Discrete_Subtype_Definitions
7611 (N : Node_Id) return List_Id; -- List2
7613 function Discriminant_Specifications
7614 (N : Node_Id) return List_Id; -- List4
7616 function Discriminant_Type
7617 (N : Node_Id) return Node_Id; -- Node5
7619 function Do_Accessibility_Check
7620 (N : Node_Id) return Boolean; -- Flag13
7622 function Do_Discriminant_Check
7623 (N : Node_Id) return Boolean; -- Flag13
7625 function Do_Division_Check
7626 (N : Node_Id) return Boolean; -- Flag13
7628 function Do_Length_Check
7629 (N : Node_Id) return Boolean; -- Flag4
7631 function Do_Overflow_Check
7632 (N : Node_Id) return Boolean; -- Flag17
7634 function Do_Range_Check
7635 (N : Node_Id) return Boolean; -- Flag9
7637 function Do_Storage_Check
7638 (N : Node_Id) return Boolean; -- Flag17
7640 function Do_Tag_Check
7641 (N : Node_Id) return Boolean; -- Flag13
7643 function Elaborate_All_Desirable
7644 (N : Node_Id) return Boolean; -- Flag9
7646 function Elaborate_All_Present
7647 (N : Node_Id) return Boolean; -- Flag14
7649 function Elaborate_Desirable
7650 (N : Node_Id) return Boolean; -- Flag11
7652 function Elaborate_Present
7653 (N : Node_Id) return Boolean; -- Flag4
7655 function Elaboration_Boolean
7656 (N : Node_Id) return Node_Id; -- Node2
7658 function Else_Actions
7659 (N : Node_Id) return List_Id; -- List3
7661 function Else_Statements
7662 (N : Node_Id) return List_Id; -- List4
7664 function Elsif_Parts
7665 (N : Node_Id) return List_Id; -- List3
7667 function Enclosing_Variant
7668 (N : Node_Id) return Node_Id; -- Node2
7671 (N : Node_Id) return Node_Id; -- Node4
7674 (N : Node_Id) return Uint; -- Uint5
7677 (N : Node_Id) return Node_Id; -- Node4
7679 function Entity_Or_Associated_Node
7680 (N : Node_Id) return Node_Id; -- Node4
7682 function Entry_Body_Formal_Part
7683 (N : Node_Id) return Node_Id; -- Node5
7685 function Entry_Call_Alternative
7686 (N : Node_Id) return Node_Id; -- Node1
7688 function Entry_Call_Statement
7689 (N : Node_Id) return Node_Id; -- Node1
7691 function Entry_Direct_Name
7692 (N : Node_Id) return Node_Id; -- Node1
7694 function Entry_Index
7695 (N : Node_Id) return Node_Id; -- Node5
7697 function Entry_Index_Specification
7698 (N : Node_Id) return Node_Id; -- Node4
7701 (N : Node_Id) return Node_Id; -- Node5
7703 function Exception_Choices
7704 (N : Node_Id) return List_Id; -- List4
7706 function Exception_Handlers
7707 (N : Node_Id) return List_Id; -- List5
7709 function Exception_Junk
7710 (N : Node_Id) return Boolean; -- Flag8
7712 function Exception_Label
7713 (N : Node_Id) return Node_Id; -- Node5
7715 function Explicit_Actual_Parameter
7716 (N : Node_Id) return Node_Id; -- Node3
7718 function Expansion_Delayed
7719 (N : Node_Id) return Boolean; -- Flag11
7721 function Explicit_Generic_Actual_Parameter
7722 (N : Node_Id) return Node_Id; -- Node1
7725 (N : Node_Id) return Node_Id; -- Node3
7727 function Expressions
7728 (N : Node_Id) return List_Id; -- List1
7731 (N : Node_Id) return Node_Id; -- Node3
7733 function First_Inlined_Subprogram
7734 (N : Node_Id) return Entity_Id; -- Node3
7737 (N : Node_Id) return Boolean; -- Flag5
7739 function First_Named_Actual
7740 (N : Node_Id) return Node_Id; -- Node4
7742 function First_Real_Statement
7743 (N : Node_Id) return Node_Id; -- Node2
7745 function First_Subtype_Link
7746 (N : Node_Id) return Entity_Id; -- Node5
7748 function Float_Truncate
7749 (N : Node_Id) return Boolean; -- Flag11
7751 function Formal_Type_Definition
7752 (N : Node_Id) return Node_Id; -- Node3
7754 function Forwards_OK
7755 (N : Node_Id) return Boolean; -- Flag5
7757 function From_At_Mod
7758 (N : Node_Id) return Boolean; -- Flag4
7760 function From_Default
7761 (N : Node_Id) return Boolean; -- Flag6
7763 function Generic_Associations
7764 (N : Node_Id) return List_Id; -- List3
7766 function Generic_Formal_Declarations
7767 (N : Node_Id) return List_Id; -- List2
7769 function Generic_Parent
7770 (N : Node_Id) return Node_Id; -- Node5
7772 function Generic_Parent_Type
7773 (N : Node_Id) return Node_Id; -- Node4
7775 function Handled_Statement_Sequence
7776 (N : Node_Id) return Node_Id; -- Node4
7778 function Handler_List_Entry
7779 (N : Node_Id) return Node_Id; -- Node2
7781 function Has_Created_Identifier
7782 (N : Node_Id) return Boolean; -- Flag15
7784 function Has_Dynamic_Length_Check
7785 (N : Node_Id) return Boolean; -- Flag10
7787 function Has_Dynamic_Range_Check
7788 (N : Node_Id) return Boolean; -- Flag12
7790 function Has_Init_Expression
7791 (N : Node_Id) return Boolean; -- Flag14
7793 function Has_Local_Raise
7794 (N : Node_Id) return Boolean; -- Flag8
7796 function Has_No_Elaboration_Code
7797 (N : Node_Id) return Boolean; -- Flag17
7799 function Has_Priority_Pragma
7800 (N : Node_Id) return Boolean; -- Flag6
7802 function Has_Private_View
7803 (N : Node_Id) return Boolean; -- Flag11
7805 function Has_Self_Reference
7806 (N : Node_Id) return Boolean; -- Flag13
7808 function Has_Storage_Size_Pragma
7809 (N : Node_Id) return Boolean; -- Flag5
7811 function Has_Task_Info_Pragma
7812 (N : Node_Id) return Boolean; -- Flag7
7814 function Has_Task_Name_Pragma
7815 (N : Node_Id) return Boolean; -- Flag8
7817 function Has_Wide_Character
7818 (N : Node_Id) return Boolean; -- Flag11
7820 function Hidden_By_Use_Clause
7821 (N : Node_Id) return Elist_Id; -- Elist4
7824 (N : Node_Id) return Node_Id; -- Node2
7827 (N : Node_Id) return Node_Id; -- Node1
7829 function Interface_List
7830 (N : Node_Id) return List_Id; -- List2
7832 function Interface_Present
7833 (N : Node_Id) return Boolean; -- Flag16
7835 function Implicit_With
7836 (N : Node_Id) return Boolean; -- Flag16
7839 (N : Node_Id) return Boolean; -- Flag15
7841 function Includes_Infinities
7842 (N : Node_Id) return Boolean; -- Flag11
7844 function Instance_Spec
7845 (N : Node_Id) return Node_Id; -- Node5
7848 (N : Node_Id) return Uint; -- Uint3
7850 function Is_Asynchronous_Call_Block
7851 (N : Node_Id) return Boolean; -- Flag7
7853 function Is_Coextension
7854 (N : Node_Id) return Boolean; -- Flag18
7856 function Is_Component_Left_Opnd
7857 (N : Node_Id) return Boolean; -- Flag13
7859 function Is_Component_Right_Opnd
7860 (N : Node_Id) return Boolean; -- Flag14
7862 function Is_Controlling_Actual
7863 (N : Node_Id) return Boolean; -- Flag16
7865 function Is_Entry_Barrier_Function
7866 (N : Node_Id) return Boolean; -- Flag8
7868 function Is_In_Discriminant_Check
7869 (N : Node_Id) return Boolean; -- Flag11
7871 function Is_Machine_Number
7872 (N : Node_Id) return Boolean; -- Flag11
7874 function Is_Null_Loop
7875 (N : Node_Id) return Boolean; -- Flag16
7877 function Is_Overloaded
7878 (N : Node_Id) return Boolean; -- Flag5
7880 function Is_Power_Of_2_For_Shift
7881 (N : Node_Id) return Boolean; -- Flag13
7883 function Is_Protected_Subprogram_Body
7884 (N : Node_Id) return Boolean; -- Flag7
7886 function Is_Static_Coextension
7887 (N : Node_Id) return Boolean; -- Flag14
7889 function Is_Static_Expression
7890 (N : Node_Id) return Boolean; -- Flag6
7892 function Is_Subprogram_Descriptor
7893 (N : Node_Id) return Boolean; -- Flag16
7895 function Is_Task_Allocation_Block
7896 (N : Node_Id) return Boolean; -- Flag6
7898 function Is_Task_Master
7899 (N : Node_Id) return Boolean; -- Flag5
7901 function Iteration_Scheme
7902 (N : Node_Id) return Node_Id; -- Node2
7905 (N : Node_Id) return Entity_Id; -- Node1
7907 function Kill_Range_Check
7908 (N : Node_Id) return Boolean; -- Flag11
7910 function Label_Construct
7911 (N : Node_Id) return Node_Id; -- Node2
7914 (N : Node_Id) return Node_Id; -- Node2
7917 (N : Node_Id) return Node_Id; -- Node4
7920 (N : Node_Id) return Boolean; -- Flag6
7922 function Library_Unit
7923 (N : Node_Id) return Node_Id; -- Node4
7925 function Limited_View_Installed
7926 (N : Node_Id) return Boolean; -- Flag18
7928 function Limited_Present
7929 (N : Node_Id) return Boolean; -- Flag17
7932 (N : Node_Id) return List_Id; -- List1
7934 function Local_Raise_Not_OK
7935 (N : Node_Id) return Boolean; -- Flag7
7937 function Local_Raise_Statements
7938 (N : Node_Id) return Elist_Id; -- Elist1
7940 function Loop_Actions
7941 (N : Node_Id) return List_Id; -- List2
7943 function Loop_Parameter_Specification
7944 (N : Node_Id) return Node_Id; -- Node4
7947 (N : Node_Id) return Node_Id; -- Node1
7950 (N : Node_Id) return Node_Id; -- Node2
7953 (N : Node_Id) return Boolean; -- Flag5
7955 function Must_Be_Byte_Aligned
7956 (N : Node_Id) return Boolean; -- Flag14
7958 function Must_Not_Freeze
7959 (N : Node_Id) return Boolean; -- Flag8
7961 function Must_Not_Override
7962 (N : Node_Id) return Boolean; -- Flag15
7964 function Must_Override
7965 (N : Node_Id) return Boolean; -- Flag14
7968 (N : Node_Id) return Node_Id; -- Node2
7971 (N : Node_Id) return List_Id; -- List2
7973 function Next_Entity
7974 (N : Node_Id) return Node_Id; -- Node2
7976 function Next_Named_Actual
7977 (N : Node_Id) return Node_Id; -- Node4
7979 function Next_Rep_Item
7980 (N : Node_Id) return Node_Id; -- Node5
7982 function Next_Use_Clause
7983 (N : Node_Id) return Node_Id; -- Node3
7985 function No_Ctrl_Actions
7986 (N : Node_Id) return Boolean; -- Flag7
7988 function No_Elaboration_Check
7989 (N : Node_Id) return Boolean; -- Flag14
7991 function No_Entities_Ref_In_Spec
7992 (N : Node_Id) return Boolean; -- Flag8
7994 function No_Initialization
7995 (N : Node_Id) return Boolean; -- Flag13
7997 function No_Truncation
7998 (N : Node_Id) return Boolean; -- Flag17
8000 function Null_Present
8001 (N : Node_Id) return Boolean; -- Flag13
8003 function Null_Exclusion_Present
8004 (N : Node_Id) return Boolean; -- Flag11
8006 function Null_Record_Present
8007 (N : Node_Id) return Boolean; -- Flag17
8009 function Object_Definition
8010 (N : Node_Id) return Node_Id; -- Node4
8012 function Original_Discriminant
8013 (N : Node_Id) return Node_Id; -- Node2
8015 function Original_Entity
8016 (N : Node_Id) return Entity_Id; -- Node2
8018 function Others_Discrete_Choices
8019 (N : Node_Id) return List_Id; -- List1
8021 function Out_Present
8022 (N : Node_Id) return Boolean; -- Flag17
8024 function Parameter_Associations
8025 (N : Node_Id) return List_Id; -- List3
8027 function Parameter_List_Truncated
8028 (N : Node_Id) return Boolean; -- Flag17
8030 function Parameter_Specifications
8031 (N : Node_Id) return List_Id; -- List3
8033 function Parameter_Type
8034 (N : Node_Id) return Node_Id; -- Node2
8036 function Parent_Spec
8037 (N : Node_Id) return Node_Id; -- Node4
8040 (N : Node_Id) return Node_Id; -- Node2
8042 function Pragma_Argument_Associations
8043 (N : Node_Id) return List_Id; -- List2
8045 function Pragmas_After
8046 (N : Node_Id) return List_Id; -- List5
8048 function Pragmas_Before
8049 (N : Node_Id) return List_Id; -- List4
8052 (N : Node_Id) return Node_Id; -- Node3
8054 function Present_Expr
8055 (N : Node_Id) return Uint; -- Uint3
8058 (N : Node_Id) return Boolean; -- Flag6
8060 function Print_In_Hex
8061 (N : Node_Id) return Boolean; -- Flag13
8063 function Private_Declarations
8064 (N : Node_Id) return List_Id; -- List3
8066 function Private_Present
8067 (N : Node_Id) return Boolean; -- Flag15
8069 function Procedure_To_Call
8070 (N : Node_Id) return Node_Id; -- Node2
8072 function Proper_Body
8073 (N : Node_Id) return Node_Id; -- Node1
8075 function Protected_Definition
8076 (N : Node_Id) return Node_Id; -- Node3
8078 function Protected_Present
8079 (N : Node_Id) return Boolean; -- Flag6
8081 function Raises_Constraint_Error
8082 (N : Node_Id) return Boolean; -- Flag7
8084 function Range_Constraint
8085 (N : Node_Id) return Node_Id; -- Node4
8087 function Range_Expression
8088 (N : Node_Id) return Node_Id; -- Node4
8090 function Real_Range_Specification
8091 (N : Node_Id) return Node_Id; -- Node4
8094 (N : Node_Id) return Ureal; -- Ureal3
8097 (N : Node_Id) return Uint; -- Uint3
8099 function Record_Extension_Part
8100 (N : Node_Id) return Node_Id; -- Node3
8102 function Redundant_Use
8103 (N : Node_Id) return Boolean; -- Flag13
8105 function Renaming_Exception
8106 (N : Node_Id) return Node_Id; -- Node2
8108 function Result_Definition
8109 (N : Node_Id) return Node_Id; -- Node4
8111 function Return_Object_Declarations
8112 (N : Node_Id) return List_Id; -- List3
8114 function Return_Statement_Entity
8115 (N : Node_Id) return Node_Id; -- Node5
8117 function Reverse_Present
8118 (N : Node_Id) return Boolean; -- Flag15
8121 (N : Node_Id) return Node_Id; -- Node3
8123 function Rounded_Result
8124 (N : Node_Id) return Boolean; -- Flag18
8127 (N : Node_Id) return Node_Id; -- Node3
8129 function Select_Alternatives
8130 (N : Node_Id) return List_Id; -- List1
8132 function Selector_Name
8133 (N : Node_Id) return Node_Id; -- Node2
8135 function Selector_Names
8136 (N : Node_Id) return List_Id; -- List1
8138 function Shift_Count_OK
8139 (N : Node_Id) return Boolean; -- Flag4
8141 function Source_Type
8142 (N : Node_Id) return Entity_Id; -- Node1
8144 function Specification
8145 (N : Node_Id) return Node_Id; -- Node1
8148 (N : Node_Id) return List_Id; -- List3
8150 function Static_Processing_OK
8151 (N : Node_Id) return Boolean; -- Flag4
8153 function Storage_Pool
8154 (N : Node_Id) return Node_Id; -- Node1
8157 (N : Node_Id) return String_Id; -- Str3
8159 function Subtype_Indication
8160 (N : Node_Id) return Node_Id; -- Node5
8162 function Subtype_Mark
8163 (N : Node_Id) return Node_Id; -- Node4
8165 function Subtype_Marks
8166 (N : Node_Id) return List_Id; -- List2
8168 function Synchronized_Present
8169 (N : Node_Id) return Boolean; -- Flag7
8171 function Tagged_Present
8172 (N : Node_Id) return Boolean; -- Flag15
8174 function Target_Type
8175 (N : Node_Id) return Entity_Id; -- Node2
8177 function Task_Definition
8178 (N : Node_Id) return Node_Id; -- Node3
8180 function Task_Present
8181 (N : Node_Id) return Boolean; -- Flag5
8183 function Then_Actions
8184 (N : Node_Id) return List_Id; -- List2
8186 function Then_Statements
8187 (N : Node_Id) return List_Id; -- List2
8189 function Treat_Fixed_As_Integer
8190 (N : Node_Id) return Boolean; -- Flag14
8192 function Triggering_Alternative
8193 (N : Node_Id) return Node_Id; -- Node1
8195 function Triggering_Statement
8196 (N : Node_Id) return Node_Id; -- Node1
8199 (N : Node_Id) return Elist_Id; -- Elist3
8201 function Type_Definition
8202 (N : Node_Id) return Node_Id; -- Node3
8205 (N : Node_Id) return Node_Id; -- Node2
8207 function Unknown_Discriminants_Present
8208 (N : Node_Id) return Boolean; -- Flag13
8210 function Unreferenced_In_Spec
8211 (N : Node_Id) return Boolean; -- Flag7
8213 function Variant_Part
8214 (N : Node_Id) return Node_Id; -- Node4
8217 (N : Node_Id) return List_Id; -- List1
8219 function Visible_Declarations
8220 (N : Node_Id) return List_Id; -- List2
8222 function Was_Originally_Stub
8223 (N : Node_Id) return Boolean; -- Flag13
8225 function Zero_Cost_Handling
8226 (N : Node_Id) return Boolean; -- Flag5
8228 -- End functions (note used by xsinfo utility program to end processing)
8230 ----------------------------
8231 -- Node Update Procedures --
8232 ----------------------------
8234 -- These are the corresponding node update routines, which again provide
8235 -- a high level logical access with type checking. In addition to setting
8236 -- the indicated field of the node N to the given Val, in the case of
8237 -- tree pointers (List1-4), the parent pointer of the Val node is set to
8238 -- point back to node N. This automates the setting of the parent pointer.
8240 procedure Set_ABE_Is_Certain
8241 (N : Node_Id; Val : Boolean := True); -- Flag18
8243 procedure Set_Abort_Present
8244 (N : Node_Id; Val : Boolean := True); -- Flag15
8246 procedure Set_Abortable_Part
8247 (N : Node_Id; Val : Node_Id); -- Node2
8249 procedure Set_Abstract_Present
8250 (N : Node_Id; Val : Boolean := True); -- Flag4
8252 procedure Set_Accept_Handler_Records
8253 (N : Node_Id; Val : List_Id); -- List5
8255 procedure Set_Accept_Statement
8256 (N : Node_Id; Val : Node_Id); -- Node2
8258 procedure Set_Access_Definition
8259 (N : Node_Id; Val : Node_Id); -- Node3
8261 procedure Set_Access_To_Subprogram_Definition
8262 (N : Node_Id; Val : Node_Id); -- Node3
8264 procedure Set_Access_Types_To_Process
8265 (N : Node_Id; Val : Elist_Id); -- Elist2
8267 procedure Set_Actions
8268 (N : Node_Id; Val : List_Id); -- List1
8270 procedure Set_Activation_Chain_Entity
8271 (N : Node_Id; Val : Node_Id); -- Node3
8273 procedure Set_Acts_As_Spec
8274 (N : Node_Id; Val : Boolean := True); -- Flag4
8276 procedure Set_Actual_Designated_Subtype
8277 (N : Node_Id; Val : Node_Id); -- Node4
8279 procedure Set_Aggregate_Bounds
8280 (N : Node_Id; Val : Node_Id); -- Node3
8282 procedure Set_Aliased_Present
8283 (N : Node_Id; Val : Boolean := True); -- Flag4
8285 procedure Set_All_Others
8286 (N : Node_Id; Val : Boolean := True); -- Flag11
8288 procedure Set_All_Present
8289 (N : Node_Id; Val : Boolean := True); -- Flag15
8291 procedure Set_Alternatives
8292 (N : Node_Id; Val : List_Id); -- List4
8294 procedure Set_Ancestor_Part
8295 (N : Node_Id; Val : Node_Id); -- Node3
8297 procedure Set_Array_Aggregate
8298 (N : Node_Id; Val : Node_Id); -- Node3
8300 procedure Set_Assignment_OK
8301 (N : Node_Id; Val : Boolean := True); -- Flag15
8303 procedure Set_Associated_Node
8304 (N : Node_Id; Val : Node_Id); -- Node4
8306 procedure Set_Attribute_Name
8307 (N : Node_Id; Val : Name_Id); -- Name2
8309 procedure Set_At_End_Proc
8310 (N : Node_Id; Val : Node_Id); -- Node1
8312 procedure Set_Aux_Decls_Node
8313 (N : Node_Id; Val : Node_Id); -- Node5
8315 procedure Set_Backwards_OK
8316 (N : Node_Id; Val : Boolean := True); -- Flag6
8318 procedure Set_Bad_Is_Detected
8319 (N : Node_Id; Val : Boolean := True); -- Flag15
8321 procedure Set_Body_Required
8322 (N : Node_Id; Val : Boolean := True); -- Flag13
8324 procedure Set_Body_To_Inline
8325 (N : Node_Id; Val : Node_Id); -- Node3
8327 procedure Set_Box_Present
8328 (N : Node_Id; Val : Boolean := True); -- Flag15
8330 procedure Set_By_Ref
8331 (N : Node_Id; Val : Boolean := True); -- Flag5
8333 procedure Set_Char_Literal_Value
8334 (N : Node_Id; Val : Uint); -- Uint2
8337 (N : Node_Id; Val : Name_Id); -- Name1
8339 procedure Set_Check_Address_Alignment
8340 (N : Node_Id; Val : Boolean := True); -- Flag11
8342 procedure Set_Choice_Parameter
8343 (N : Node_Id; Val : Node_Id); -- Node2
8345 procedure Set_Coextensions
8346 (N : Node_Id; Val : Elist_Id); -- Elist4
8348 procedure Set_Choices
8349 (N : Node_Id; Val : List_Id); -- List1
8351 procedure Set_Comes_From_Extended_Return_Statement
8352 (N : Node_Id; Val : Boolean := True); -- Flag18
8354 procedure Set_Compile_Time_Known_Aggregate
8355 (N : Node_Id; Val : Boolean := True); -- Flag18
8357 procedure Set_Component_Associations
8358 (N : Node_Id; Val : List_Id); -- List2
8360 procedure Set_Component_Clauses
8361 (N : Node_Id; Val : List_Id); -- List3
8363 procedure Set_Component_Definition
8364 (N : Node_Id; Val : Node_Id); -- Node4
8366 procedure Set_Component_Items
8367 (N : Node_Id; Val : List_Id); -- List3
8369 procedure Set_Component_List
8370 (N : Node_Id; Val : Node_Id); -- Node1
8372 procedure Set_Component_Name
8373 (N : Node_Id; Val : Node_Id); -- Node1
8375 procedure Set_Condition
8376 (N : Node_Id; Val : Node_Id); -- Node1
8378 procedure Set_Condition_Actions
8379 (N : Node_Id; Val : List_Id); -- List3
8381 procedure Set_Config_Pragmas
8382 (N : Node_Id; Val : List_Id); -- List4
8384 procedure Set_Constant_Present
8385 (N : Node_Id; Val : Boolean := True); -- Flag17
8387 procedure Set_Constraint
8388 (N : Node_Id; Val : Node_Id); -- Node3
8390 procedure Set_Constraints
8391 (N : Node_Id; Val : List_Id); -- List1
8393 procedure Set_Context_Installed
8394 (N : Node_Id; Val : Boolean := True); -- Flag13
8396 procedure Set_Context_Items
8397 (N : Node_Id; Val : List_Id); -- List1
8399 procedure Set_Controlling_Argument
8400 (N : Node_Id; Val : Node_Id); -- Node1
8402 procedure Set_Conversion_OK
8403 (N : Node_Id; Val : Boolean := True); -- Flag14
8405 procedure Set_Corresponding_Body
8406 (N : Node_Id; Val : Node_Id); -- Node5
8408 procedure Set_Corresponding_Formal_Spec
8409 (N : Node_Id; Val : Node_Id); -- Node3
8411 procedure Set_Corresponding_Generic_Association
8412 (N : Node_Id; Val : Node_Id); -- Node5
8414 procedure Set_Corresponding_Integer_Value
8415 (N : Node_Id; Val : Uint); -- Uint4
8417 procedure Set_Corresponding_Spec
8418 (N : Node_Id; Val : Node_Id); -- Node5
8420 procedure Set_Corresponding_Stub
8421 (N : Node_Id; Val : Node_Id); -- Node3
8423 procedure Set_Dcheck_Function
8424 (N : Node_Id; Val : Entity_Id); -- Node5
8426 procedure Set_Debug_Statement
8427 (N : Node_Id; Val : Node_Id); -- Node3
8429 procedure Set_Declarations
8430 (N : Node_Id; Val : List_Id); -- List2
8432 procedure Set_Default_Expression
8433 (N : Node_Id; Val : Node_Id); -- Node5
8435 procedure Set_Default_Name
8436 (N : Node_Id; Val : Node_Id); -- Node2
8438 procedure Set_Defining_Identifier
8439 (N : Node_Id; Val : Entity_Id); -- Node1
8441 procedure Set_Defining_Unit_Name
8442 (N : Node_Id; Val : Node_Id); -- Node1
8444 procedure Set_Delay_Alternative
8445 (N : Node_Id; Val : Node_Id); -- Node4
8447 procedure Set_Delay_Statement
8448 (N : Node_Id; Val : Node_Id); -- Node2
8450 procedure Set_Delta_Expression
8451 (N : Node_Id; Val : Node_Id); -- Node3
8453 procedure Set_Digits_Expression
8454 (N : Node_Id; Val : Node_Id); -- Node2
8456 procedure Set_Discr_Check_Funcs_Built
8457 (N : Node_Id; Val : Boolean := True); -- Flag11
8459 procedure Set_Discrete_Choices
8460 (N : Node_Id; Val : List_Id); -- List4
8462 procedure Set_Discrete_Range
8463 (N : Node_Id; Val : Node_Id); -- Node4
8465 procedure Set_Discrete_Subtype_Definition
8466 (N : Node_Id; Val : Node_Id); -- Node4
8468 procedure Set_Discrete_Subtype_Definitions
8469 (N : Node_Id; Val : List_Id); -- List2
8471 procedure Set_Discriminant_Specifications
8472 (N : Node_Id; Val : List_Id); -- List4
8474 procedure Set_Discriminant_Type
8475 (N : Node_Id; Val : Node_Id); -- Node5
8477 procedure Set_Do_Accessibility_Check
8478 (N : Node_Id; Val : Boolean := True); -- Flag13
8480 procedure Set_Do_Discriminant_Check
8481 (N : Node_Id; Val : Boolean := True); -- Flag13
8483 procedure Set_Do_Division_Check
8484 (N : Node_Id; Val : Boolean := True); -- Flag13
8486 procedure Set_Do_Length_Check
8487 (N : Node_Id; Val : Boolean := True); -- Flag4
8489 procedure Set_Do_Overflow_Check
8490 (N : Node_Id; Val : Boolean := True); -- Flag17
8492 procedure Set_Do_Range_Check
8493 (N : Node_Id; Val : Boolean := True); -- Flag9
8495 procedure Set_Do_Storage_Check
8496 (N : Node_Id; Val : Boolean := True); -- Flag17
8498 procedure Set_Do_Tag_Check
8499 (N : Node_Id; Val : Boolean := True); -- Flag13
8501 procedure Set_Elaborate_All_Desirable
8502 (N : Node_Id; Val : Boolean := True); -- Flag9
8504 procedure Set_Elaborate_All_Present
8505 (N : Node_Id; Val : Boolean := True); -- Flag14
8507 procedure Set_Elaborate_Desirable
8508 (N : Node_Id; Val : Boolean := True); -- Flag11
8510 procedure Set_Elaborate_Present
8511 (N : Node_Id; Val : Boolean := True); -- Flag4
8513 procedure Set_Elaboration_Boolean
8514 (N : Node_Id; Val : Node_Id); -- Node2
8516 procedure Set_Else_Actions
8517 (N : Node_Id; Val : List_Id); -- List3
8519 procedure Set_Else_Statements
8520 (N : Node_Id; Val : List_Id); -- List4
8522 procedure Set_Elsif_Parts
8523 (N : Node_Id; Val : List_Id); -- List3
8525 procedure Set_Enclosing_Variant
8526 (N : Node_Id; Val : Node_Id); -- Node2
8528 procedure Set_End_Label
8529 (N : Node_Id; Val : Node_Id); -- Node4
8531 procedure Set_End_Span
8532 (N : Node_Id; Val : Uint); -- Uint5
8534 procedure Set_Entity
8535 (N : Node_Id; Val : Node_Id); -- Node4
8537 procedure Set_Entry_Body_Formal_Part
8538 (N : Node_Id; Val : Node_Id); -- Node5
8540 procedure Set_Entry_Call_Alternative
8541 (N : Node_Id; Val : Node_Id); -- Node1
8543 procedure Set_Entry_Call_Statement
8544 (N : Node_Id; Val : Node_Id); -- Node1
8546 procedure Set_Entry_Direct_Name
8547 (N : Node_Id; Val : Node_Id); -- Node1
8549 procedure Set_Entry_Index
8550 (N : Node_Id; Val : Node_Id); -- Node5
8552 procedure Set_Entry_Index_Specification
8553 (N : Node_Id; Val : Node_Id); -- Node4
8556 (N : Node_Id; Val : Node_Id); -- Node5
8558 procedure Set_Exception_Choices
8559 (N : Node_Id; Val : List_Id); -- List4
8561 procedure Set_Exception_Handlers
8562 (N : Node_Id; Val : List_Id); -- List5
8564 procedure Set_Exception_Junk
8565 (N : Node_Id; Val : Boolean := True); -- Flag8
8567 procedure Set_Exception_Label
8568 (N : Node_Id; Val : Node_Id); -- Node5
8570 procedure Set_Expansion_Delayed
8571 (N : Node_Id; Val : Boolean := True); -- Flag11
8573 procedure Set_Explicit_Actual_Parameter
8574 (N : Node_Id; Val : Node_Id); -- Node3
8576 procedure Set_Explicit_Generic_Actual_Parameter
8577 (N : Node_Id; Val : Node_Id); -- Node1
8579 procedure Set_Expression
8580 (N : Node_Id; Val : Node_Id); -- Node3
8582 procedure Set_Expressions
8583 (N : Node_Id; Val : List_Id); -- List1
8585 procedure Set_First_Bit
8586 (N : Node_Id; Val : Node_Id); -- Node3
8588 procedure Set_First_Inlined_Subprogram
8589 (N : Node_Id; Val : Entity_Id); -- Node3
8591 procedure Set_First_Name
8592 (N : Node_Id; Val : Boolean := True); -- Flag5
8594 procedure Set_First_Named_Actual
8595 (N : Node_Id; Val : Node_Id); -- Node4
8597 procedure Set_First_Real_Statement
8598 (N : Node_Id; Val : Node_Id); -- Node2
8600 procedure Set_First_Subtype_Link
8601 (N : Node_Id; Val : Entity_Id); -- Node5
8603 procedure Set_Float_Truncate
8604 (N : Node_Id; Val : Boolean := True); -- Flag11
8606 procedure Set_Formal_Type_Definition
8607 (N : Node_Id; Val : Node_Id); -- Node3
8609 procedure Set_Forwards_OK
8610 (N : Node_Id; Val : Boolean := True); -- Flag5
8612 procedure Set_From_At_Mod
8613 (N : Node_Id; Val : Boolean := True); -- Flag4
8615 procedure Set_From_Default
8616 (N : Node_Id; Val : Boolean := True); -- Flag6
8618 procedure Set_Generic_Associations
8619 (N : Node_Id; Val : List_Id); -- List3
8621 procedure Set_Generic_Formal_Declarations
8622 (N : Node_Id; Val : List_Id); -- List2
8624 procedure Set_Generic_Parent
8625 (N : Node_Id; Val : Node_Id); -- Node5
8627 procedure Set_Generic_Parent_Type
8628 (N : Node_Id; Val : Node_Id); -- Node4
8630 procedure Set_Handled_Statement_Sequence
8631 (N : Node_Id; Val : Node_Id); -- Node4
8633 procedure Set_Handler_List_Entry
8634 (N : Node_Id; Val : Node_Id); -- Node2
8636 procedure Set_Has_Created_Identifier
8637 (N : Node_Id; Val : Boolean := True); -- Flag15
8639 procedure Set_Has_Dynamic_Length_Check
8640 (N : Node_Id; Val : Boolean := True); -- Flag10
8642 procedure Set_Has_Dynamic_Range_Check
8643 (N : Node_Id; Val : Boolean := True); -- Flag12
8645 procedure Set_Has_Init_Expression
8646 (N : Node_Id; Val : Boolean := True); -- Flag14
8648 procedure Set_Has_Local_Raise
8649 (N : Node_Id; Val : Boolean := True); -- Flag8
8651 procedure Set_Has_No_Elaboration_Code
8652 (N : Node_Id; Val : Boolean := True); -- Flag17
8654 procedure Set_Has_Priority_Pragma
8655 (N : Node_Id; Val : Boolean := True); -- Flag6
8657 procedure Set_Has_Private_View
8658 (N : Node_Id; Val : Boolean := True); -- Flag11
8660 procedure Set_Has_Self_Reference
8661 (N : Node_Id; Val : Boolean := True); -- Flag13
8663 procedure Set_Has_Storage_Size_Pragma
8664 (N : Node_Id; Val : Boolean := True); -- Flag5
8666 procedure Set_Has_Task_Info_Pragma
8667 (N : Node_Id; Val : Boolean := True); -- Flag7
8669 procedure Set_Has_Task_Name_Pragma
8670 (N : Node_Id; Val : Boolean := True); -- Flag8
8672 procedure Set_Has_Wide_Character
8673 (N : Node_Id; Val : Boolean := True); -- Flag11
8675 procedure Set_Hidden_By_Use_Clause
8676 (N : Node_Id; Val : Elist_Id); -- Elist4
8678 procedure Set_High_Bound
8679 (N : Node_Id; Val : Node_Id); -- Node2
8681 procedure Set_Identifier
8682 (N : Node_Id; Val : Node_Id); -- Node1
8684 procedure Set_Interface_List
8685 (N : Node_Id; Val : List_Id); -- List2
8687 procedure Set_Interface_Present
8688 (N : Node_Id; Val : Boolean := True); -- Flag16
8690 procedure Set_Implicit_With
8691 (N : Node_Id; Val : Boolean := True); -- Flag16
8693 procedure Set_In_Present
8694 (N : Node_Id; Val : Boolean := True); -- Flag15
8696 procedure Set_Includes_Infinities
8697 (N : Node_Id; Val : Boolean := True); -- Flag11
8699 procedure Set_Instance_Spec
8700 (N : Node_Id; Val : Node_Id); -- Node5
8702 procedure Set_Intval
8703 (N : Node_Id; Val : Uint); -- Uint3
8705 procedure Set_Is_Asynchronous_Call_Block
8706 (N : Node_Id; Val : Boolean := True); -- Flag7
8708 procedure Set_Is_Coextension
8709 (N : Node_Id; Val : Boolean := True); -- Flag18
8711 procedure Set_Is_Component_Left_Opnd
8712 (N : Node_Id; Val : Boolean := True); -- Flag13
8714 procedure Set_Is_Component_Right_Opnd
8715 (N : Node_Id; Val : Boolean := True); -- Flag14
8717 procedure Set_Is_Controlling_Actual
8718 (N : Node_Id; Val : Boolean := True); -- Flag16
8720 procedure Set_Is_Entry_Barrier_Function
8721 (N : Node_Id; Val : Boolean := True); -- Flag8
8723 procedure Set_Is_In_Discriminant_Check
8724 (N : Node_Id; Val : Boolean := True); -- Flag11
8726 procedure Set_Is_Machine_Number
8727 (N : Node_Id; Val : Boolean := True); -- Flag11
8729 procedure Set_Is_Null_Loop
8730 (N : Node_Id; Val : Boolean := True); -- Flag16
8732 procedure Set_Is_Overloaded
8733 (N : Node_Id; Val : Boolean := True); -- Flag5
8735 procedure Set_Is_Power_Of_2_For_Shift
8736 (N : Node_Id; Val : Boolean := True); -- Flag13
8738 procedure Set_Is_Protected_Subprogram_Body
8739 (N : Node_Id; Val : Boolean := True); -- Flag7
8741 procedure Set_Is_Static_Coextension
8742 (N : Node_Id; Val : Boolean := True); -- Flag14
8744 procedure Set_Is_Static_Expression
8745 (N : Node_Id; Val : Boolean := True); -- Flag6
8747 procedure Set_Is_Subprogram_Descriptor
8748 (N : Node_Id; Val : Boolean := True); -- Flag16
8750 procedure Set_Is_Task_Allocation_Block
8751 (N : Node_Id; Val : Boolean := True); -- Flag6
8753 procedure Set_Is_Task_Master
8754 (N : Node_Id; Val : Boolean := True); -- Flag5
8756 procedure Set_Iteration_Scheme
8757 (N : Node_Id; Val : Node_Id); -- Node2
8760 (N : Node_Id; Val : Entity_Id); -- Node1
8762 procedure Set_Kill_Range_Check
8763 (N : Node_Id; Val : Boolean := True); -- Flag11
8765 procedure Set_Last_Bit
8766 (N : Node_Id; Val : Node_Id); -- Node4
8768 procedure Set_Last_Name
8769 (N : Node_Id; Val : Boolean := True); -- Flag6
8771 procedure Set_Library_Unit
8772 (N : Node_Id; Val : Node_Id); -- Node4
8774 procedure Set_Label_Construct
8775 (N : Node_Id; Val : Node_Id); -- Node2
8777 procedure Set_Left_Opnd
8778 (N : Node_Id; Val : Node_Id); -- Node2
8780 procedure Set_Limited_View_Installed
8781 (N : Node_Id; Val : Boolean := True); -- Flag18
8783 procedure Set_Limited_Present
8784 (N : Node_Id; Val : Boolean := True); -- Flag17
8786 procedure Set_Literals
8787 (N : Node_Id; Val : List_Id); -- List1
8789 procedure Set_Local_Raise_Not_OK
8790 (N : Node_Id; Val : Boolean := True); -- Flag7
8792 procedure Set_Local_Raise_Statements
8793 (N : Node_Id; Val : Elist_Id); -- Elist1
8795 procedure Set_Loop_Actions
8796 (N : Node_Id; Val : List_Id); -- List2
8798 procedure Set_Loop_Parameter_Specification
8799 (N : Node_Id; Val : Node_Id); -- Node4
8801 procedure Set_Low_Bound
8802 (N : Node_Id; Val : Node_Id); -- Node1
8804 procedure Set_Mod_Clause
8805 (N : Node_Id; Val : Node_Id); -- Node2
8807 procedure Set_More_Ids
8808 (N : Node_Id; Val : Boolean := True); -- Flag5
8810 procedure Set_Must_Be_Byte_Aligned
8811 (N : Node_Id; Val : Boolean := True); -- Flag14
8813 procedure Set_Must_Not_Freeze
8814 (N : Node_Id; Val : Boolean := True); -- Flag8
8816 procedure Set_Must_Not_Override
8817 (N : Node_Id; Val : Boolean := True); -- Flag15
8819 procedure Set_Must_Override
8820 (N : Node_Id; Val : Boolean := True); -- Flag14
8823 (N : Node_Id; Val : Node_Id); -- Node2
8826 (N : Node_Id; Val : List_Id); -- List2
8828 procedure Set_Next_Entity
8829 (N : Node_Id; Val : Node_Id); -- Node2
8831 procedure Set_Next_Named_Actual
8832 (N : Node_Id; Val : Node_Id); -- Node4
8834 procedure Set_Next_Rep_Item
8835 (N : Node_Id; Val : Node_Id); -- Node5
8837 procedure Set_Next_Use_Clause
8838 (N : Node_Id; Val : Node_Id); -- Node3
8840 procedure Set_No_Ctrl_Actions
8841 (N : Node_Id; Val : Boolean := True); -- Flag7
8843 procedure Set_No_Elaboration_Check
8844 (N : Node_Id; Val : Boolean := True); -- Flag14
8846 procedure Set_No_Entities_Ref_In_Spec
8847 (N : Node_Id; Val : Boolean := True); -- Flag8
8849 procedure Set_No_Initialization
8850 (N : Node_Id; Val : Boolean := True); -- Flag13
8852 procedure Set_No_Truncation
8853 (N : Node_Id; Val : Boolean := True); -- Flag17
8855 procedure Set_Null_Present
8856 (N : Node_Id; Val : Boolean := True); -- Flag13
8858 procedure Set_Null_Exclusion_Present
8859 (N : Node_Id; Val : Boolean := True); -- Flag11
8861 procedure Set_Null_Record_Present
8862 (N : Node_Id; Val : Boolean := True); -- Flag17
8864 procedure Set_Object_Definition
8865 (N : Node_Id; Val : Node_Id); -- Node4
8867 procedure Set_Original_Discriminant
8868 (N : Node_Id; Val : Node_Id); -- Node2
8870 procedure Set_Original_Entity
8871 (N : Node_Id; Val : Entity_Id); -- Node2
8873 procedure Set_Others_Discrete_Choices
8874 (N : Node_Id; Val : List_Id); -- List1
8876 procedure Set_Out_Present
8877 (N : Node_Id; Val : Boolean := True); -- Flag17
8879 procedure Set_Parameter_Associations
8880 (N : Node_Id; Val : List_Id); -- List3
8882 procedure Set_Parameter_List_Truncated
8883 (N : Node_Id; Val : Boolean := True); -- Flag17
8885 procedure Set_Parameter_Specifications
8886 (N : Node_Id; Val : List_Id); -- List3
8888 procedure Set_Parameter_Type
8889 (N : Node_Id; Val : Node_Id); -- Node2
8891 procedure Set_Parent_Spec
8892 (N : Node_Id; Val : Node_Id); -- Node4
8894 procedure Set_Position
8895 (N : Node_Id; Val : Node_Id); -- Node2
8897 procedure Set_Pragma_Argument_Associations
8898 (N : Node_Id; Val : List_Id); -- List2
8900 procedure Set_Pragmas_After
8901 (N : Node_Id; Val : List_Id); -- List5
8903 procedure Set_Pragmas_Before
8904 (N : Node_Id; Val : List_Id); -- List4
8906 procedure Set_Prefix
8907 (N : Node_Id; Val : Node_Id); -- Node3
8909 procedure Set_Present_Expr
8910 (N : Node_Id; Val : Uint); -- Uint3
8912 procedure Set_Prev_Ids
8913 (N : Node_Id; Val : Boolean := True); -- Flag6
8915 procedure Set_Print_In_Hex
8916 (N : Node_Id; Val : Boolean := True); -- Flag13
8918 procedure Set_Private_Declarations
8919 (N : Node_Id; Val : List_Id); -- List3
8921 procedure Set_Private_Present
8922 (N : Node_Id; Val : Boolean := True); -- Flag15
8924 procedure Set_Procedure_To_Call
8925 (N : Node_Id; Val : Node_Id); -- Node2
8927 procedure Set_Proper_Body
8928 (N : Node_Id; Val : Node_Id); -- Node1
8930 procedure Set_Protected_Definition
8931 (N : Node_Id; Val : Node_Id); -- Node3
8933 procedure Set_Protected_Present
8934 (N : Node_Id; Val : Boolean := True); -- Flag6
8936 procedure Set_Raises_Constraint_Error
8937 (N : Node_Id; Val : Boolean := True); -- Flag7
8939 procedure Set_Range_Constraint
8940 (N : Node_Id; Val : Node_Id); -- Node4
8942 procedure Set_Range_Expression
8943 (N : Node_Id; Val : Node_Id); -- Node4
8945 procedure Set_Real_Range_Specification
8946 (N : Node_Id; Val : Node_Id); -- Node4
8948 procedure Set_Realval
8949 (N : Node_Id; Val : Ureal); -- Ureal3
8951 procedure Set_Reason
8952 (N : Node_Id; Val : Uint); -- Uint3
8954 procedure Set_Record_Extension_Part
8955 (N : Node_Id; Val : Node_Id); -- Node3
8957 procedure Set_Redundant_Use
8958 (N : Node_Id; Val : Boolean := True); -- Flag13
8960 procedure Set_Renaming_Exception
8961 (N : Node_Id; Val : Node_Id); -- Node2
8963 procedure Set_Result_Definition
8964 (N : Node_Id; Val : Node_Id); -- Node4
8966 procedure Set_Return_Object_Declarations
8967 (N : Node_Id; Val : List_Id); -- List3
8969 procedure Set_Return_Statement_Entity
8970 (N : Node_Id; Val : Node_Id); -- Node5
8972 procedure Set_Reverse_Present
8973 (N : Node_Id; Val : Boolean := True); -- Flag15
8975 procedure Set_Right_Opnd
8976 (N : Node_Id; Val : Node_Id); -- Node3
8978 procedure Set_Rounded_Result
8979 (N : Node_Id; Val : Boolean := True); -- Flag18
8982 (N : Node_Id; Val : Node_Id); -- Node3
8984 procedure Set_Select_Alternatives
8985 (N : Node_Id; Val : List_Id); -- List1
8987 procedure Set_Selector_Name
8988 (N : Node_Id; Val : Node_Id); -- Node2
8990 procedure Set_Selector_Names
8991 (N : Node_Id; Val : List_Id); -- List1
8993 procedure Set_Shift_Count_OK
8994 (N : Node_Id; Val : Boolean := True); -- Flag4
8996 procedure Set_Source_Type
8997 (N : Node_Id; Val : Entity_Id); -- Node1
8999 procedure Set_Specification
9000 (N : Node_Id; Val : Node_Id); -- Node1
9002 procedure Set_Statements
9003 (N : Node_Id; Val : List_Id); -- List3
9005 procedure Set_Static_Processing_OK
9006 (N : Node_Id; Val : Boolean); -- Flag4
9008 procedure Set_Storage_Pool
9009 (N : Node_Id; Val : Node_Id); -- Node1
9011 procedure Set_Strval
9012 (N : Node_Id; Val : String_Id); -- Str3
9014 procedure Set_Subtype_Indication
9015 (N : Node_Id; Val : Node_Id); -- Node5
9017 procedure Set_Subtype_Mark
9018 (N : Node_Id; Val : Node_Id); -- Node4
9020 procedure Set_Subtype_Marks
9021 (N : Node_Id; Val : List_Id); -- List2
9023 procedure Set_Synchronized_Present
9024 (N : Node_Id; Val : Boolean := True); -- Flag7
9026 procedure Set_Tagged_Present
9027 (N : Node_Id; Val : Boolean := True); -- Flag15
9029 procedure Set_Target_Type
9030 (N : Node_Id; Val : Entity_Id); -- Node2
9032 procedure Set_Task_Definition
9033 (N : Node_Id; Val : Node_Id); -- Node3
9035 procedure Set_Task_Present
9036 (N : Node_Id; Val : Boolean := True); -- Flag5
9038 procedure Set_Then_Actions
9039 (N : Node_Id; Val : List_Id); -- List2
9041 procedure Set_Then_Statements
9042 (N : Node_Id; Val : List_Id); -- List2
9044 procedure Set_Treat_Fixed_As_Integer
9045 (N : Node_Id; Val : Boolean := True); -- Flag14
9047 procedure Set_Triggering_Alternative
9048 (N : Node_Id; Val : Node_Id); -- Node1
9050 procedure Set_Triggering_Statement
9051 (N : Node_Id; Val : Node_Id); -- Node1
9053 procedure Set_TSS_Elist
9054 (N : Node_Id; Val : Elist_Id); -- Elist3
9056 procedure Set_Type_Definition
9057 (N : Node_Id; Val : Node_Id); -- Node3
9060 (N : Node_Id; Val : Node_Id); -- Node2
9062 procedure Set_Unknown_Discriminants_Present
9063 (N : Node_Id; Val : Boolean := True); -- Flag13
9065 procedure Set_Unreferenced_In_Spec
9066 (N : Node_Id; Val : Boolean := True); -- Flag7
9068 procedure Set_Variant_Part
9069 (N : Node_Id; Val : Node_Id); -- Node4
9071 procedure Set_Variants
9072 (N : Node_Id; Val : List_Id); -- List1
9074 procedure Set_Visible_Declarations
9075 (N : Node_Id; Val : List_Id); -- List2
9077 procedure Set_Was_Originally_Stub
9078 (N : Node_Id; Val : Boolean := True); -- Flag13
9080 procedure Set_Zero_Cost_Handling
9081 (N : Node_Id; Val : Boolean := True); -- Flag5
9083 -------------------------
9084 -- Iterator Procedures --
9085 -------------------------
9087 -- The call to Next_xxx (N) is equivalent to N := Next_xxx (N)
9089 procedure Next_Entity (N : in out Node_Id);
9090 procedure Next_Named_Actual (N : in out Node_Id);
9091 procedure Next_Rep_Item (N : in out Node_Id);
9092 procedure Next_Use_Clause (N : in out Node_Id);
9094 --------------------------------------
9095 -- Logical Access to End_Span Field --
9096 --------------------------------------
9098 function End_Location (N : Node_Id) return Source_Ptr;
9099 -- N is an N_If_Statement or N_Case_Statement node, and this
9100 -- function returns the location of the IF token in the END IF
9101 -- sequence by translating the value of the End_Span field.
9103 procedure Set_End_Location (N : Node_Id; S : Source_Ptr);
9104 -- N is an N_If_Statement or N_Case_Statement node. This procedure
9105 -- sets the End_Span field to correspond to the given value S. In
9106 -- other words, End_Span is set to the difference between S and
9107 -- Sloc (N), the starting location.
9109 -----------------------------
9110 -- Syntactic Parent Tables --
9111 -----------------------------
9113 -- These tables show for each node, and for each of the five fields,
9114 -- whether the corresponding field is syntactic (True) or semantic (False).
9115 -- Unused entries are also set to False.
9117 subtype Field_Num is Natural range 1 .. 5;
9119 Is_Syntactic_Field : constant array (Node_Kind, Field_Num) of Boolean := (
9121 -- Following entries can be built automatically from the sinfo sources
9122 -- using the makeisf utility (currently this program is in spitbol).
9125 (1 => True, -- Chars (Name1)
9126 2 => False, -- Original_Discriminant (Node2-Sem)
9127 3 => False, -- unused
9128 4 => False, -- Entity (Node4-Sem)
9129 5 => False), -- Etype (Node5-Sem)
9131 N_Integer_Literal =>
9132 (1 => False, -- unused
9133 2 => False, -- Original_Entity (Node2-Sem)
9134 3 => True, -- Intval (Uint3)
9135 4 => False, -- unused
9136 5 => False), -- Etype (Node5-Sem)
9139 (1 => False, -- unused
9140 2 => False, -- Original_Entity (Node2-Sem)
9141 3 => True, -- Realval (Ureal3)
9142 4 => False, -- Corresponding_Integer_Value (Uint4-Sem)
9143 5 => False), -- Etype (Node5-Sem)
9145 N_Character_Literal =>
9146 (1 => True, -- Chars (Name1)
9147 2 => True, -- Char_Literal_Value (Uint2)
9148 3 => False, -- unused
9149 4 => False, -- Entity (Node4-Sem)
9150 5 => False), -- Etype (Node5-Sem)
9153 (1 => False, -- unused
9154 2 => False, -- unused
9155 3 => True, -- Strval (Str3)
9156 4 => False, -- unused
9157 5 => False), -- Etype (Node5-Sem)
9160 (1 => True, -- Chars (Name1)
9161 2 => True, -- Pragma_Argument_Associations (List2)
9162 3 => True, -- Debug_Statement (Node3)
9163 4 => False, -- Entity (Node4-Sem)
9164 5 => False), -- Next_Rep_Item (Node5-Sem)
9166 N_Pragma_Argument_Association =>
9167 (1 => True, -- Chars (Name1)
9168 2 => False, -- unused
9169 3 => True, -- Expression (Node3)
9170 4 => False, -- unused
9171 5 => False), -- unused
9173 N_Defining_Identifier =>
9174 (1 => True, -- Chars (Name1)
9175 2 => False, -- Next_Entity (Node2-Sem)
9176 3 => False, -- Scope (Node3-Sem)
9177 4 => False, -- unused
9178 5 => False), -- Etype (Node5-Sem)
9180 N_Full_Type_Declaration =>
9181 (1 => True, -- Defining_Identifier (Node1)
9182 2 => False, -- unused
9183 3 => True, -- Type_Definition (Node3)
9184 4 => True, -- Discriminant_Specifications (List4)
9185 5 => False), -- unused
9187 N_Subtype_Declaration =>
9188 (1 => True, -- Defining_Identifier (Node1)
9189 2 => False, -- unused
9190 3 => False, -- unused
9191 4 => False, -- Generic_Parent_Type (Node4-Sem)
9192 5 => True), -- Subtype_Indication (Node5)
9194 N_Subtype_Indication =>
9195 (1 => False, -- unused
9196 2 => False, -- unused
9197 3 => True, -- Constraint (Node3)
9198 4 => True, -- Subtype_Mark (Node4)
9199 5 => False), -- Etype (Node5-Sem)
9201 N_Object_Declaration =>
9202 (1 => True, -- Defining_Identifier (Node1)
9203 2 => False, -- Handler_List_Entry (Node2-Sem)
9204 3 => True, -- Expression (Node3)
9205 4 => True, -- Object_Definition (Node4)
9206 5 => False), -- Corresponding_Generic_Association (Node5-Sem)
9208 N_Number_Declaration =>
9209 (1 => True, -- Defining_Identifier (Node1)
9210 2 => False, -- unused
9211 3 => True, -- Expression (Node3)
9212 4 => False, -- unused
9213 5 => False), -- unused
9215 N_Derived_Type_Definition =>
9216 (1 => False, -- unused
9217 2 => True, -- Interface_List (List2)
9218 3 => True, -- Record_Extension_Part (Node3)
9219 4 => False, -- unused
9220 5 => True), -- Subtype_Indication (Node5)
9222 N_Range_Constraint =>
9223 (1 => False, -- unused
9224 2 => False, -- unused
9225 3 => False, -- unused
9226 4 => True, -- Range_Expression (Node4)
9227 5 => False), -- unused
9230 (1 => True, -- Low_Bound (Node1)
9231 2 => True, -- High_Bound (Node2)
9232 3 => False, -- unused
9233 4 => False, -- unused
9234 5 => False), -- Etype (Node5-Sem)
9236 N_Enumeration_Type_Definition =>
9237 (1 => True, -- Literals (List1)
9238 2 => False, -- unused
9239 3 => False, -- unused
9240 4 => True, -- End_Label (Node4)
9241 5 => False), -- unused
9243 N_Defining_Character_Literal =>
9244 (1 => True, -- Chars (Name1)
9245 2 => False, -- Next_Entity (Node2-Sem)
9246 3 => False, -- Scope (Node3-Sem)
9247 4 => False, -- unused
9248 5 => False), -- Etype (Node5-Sem)
9250 N_Signed_Integer_Type_Definition =>
9251 (1 => True, -- Low_Bound (Node1)
9252 2 => True, -- High_Bound (Node2)
9253 3 => False, -- unused
9254 4 => False, -- unused
9255 5 => False), -- unused
9257 N_Modular_Type_Definition =>
9258 (1 => False, -- unused
9259 2 => False, -- unused
9260 3 => True, -- Expression (Node3)
9261 4 => False, -- unused
9262 5 => False), -- unused
9264 N_Floating_Point_Definition =>
9265 (1 => False, -- unused
9266 2 => True, -- Digits_Expression (Node2)
9267 3 => False, -- unused
9268 4 => True, -- Real_Range_Specification (Node4)
9269 5 => False), -- unused
9271 N_Real_Range_Specification =>
9272 (1 => True, -- Low_Bound (Node1)
9273 2 => True, -- High_Bound (Node2)
9274 3 => False, -- unused
9275 4 => False, -- unused
9276 5 => False), -- unused
9278 N_Ordinary_Fixed_Point_Definition =>
9279 (1 => False, -- unused
9280 2 => False, -- unused
9281 3 => True, -- Delta_Expression (Node3)
9282 4 => True, -- Real_Range_Specification (Node4)
9283 5 => False), -- unused
9285 N_Decimal_Fixed_Point_Definition =>
9286 (1 => False, -- unused
9287 2 => True, -- Digits_Expression (Node2)
9288 3 => True, -- Delta_Expression (Node3)
9289 4 => True, -- Real_Range_Specification (Node4)
9290 5 => False), -- unused
9292 N_Digits_Constraint =>
9293 (1 => False, -- unused
9294 2 => True, -- Digits_Expression (Node2)
9295 3 => False, -- unused
9296 4 => True, -- Range_Constraint (Node4)
9297 5 => False), -- unused
9299 N_Unconstrained_Array_Definition =>
9300 (1 => False, -- unused
9301 2 => True, -- Subtype_Marks (List2)
9302 3 => False, -- unused
9303 4 => True, -- Component_Definition (Node4)
9304 5 => False), -- unused
9306 N_Constrained_Array_Definition =>
9307 (1 => False, -- unused
9308 2 => True, -- Discrete_Subtype_Definitions (List2)
9309 3 => False, -- unused
9310 4 => True, -- Component_Definition (Node4)
9311 5 => False), -- unused
9313 N_Component_Definition =>
9314 (1 => False, -- unused
9315 2 => False, -- unused
9316 3 => True, -- Access_Definition (Node3)
9317 4 => False, -- unused
9318 5 => True), -- Subtype_Indication (Node5)
9320 N_Discriminant_Specification =>
9321 (1 => True, -- Defining_Identifier (Node1)
9322 2 => False, -- unused
9323 3 => True, -- Expression (Node3)
9324 4 => False, -- unused
9325 5 => True), -- Discriminant_Type (Node5)
9327 N_Index_Or_Discriminant_Constraint =>
9328 (1 => True, -- Constraints (List1)
9329 2 => False, -- unused
9330 3 => False, -- unused
9331 4 => False, -- unused
9332 5 => False), -- unused
9334 N_Discriminant_Association =>
9335 (1 => True, -- Selector_Names (List1)
9336 2 => False, -- unused
9337 3 => True, -- Expression (Node3)
9338 4 => False, -- unused
9339 5 => False), -- unused
9341 N_Record_Definition =>
9342 (1 => True, -- Component_List (Node1)
9343 2 => True, -- Interface_List (List2)
9344 3 => False, -- unused
9345 4 => True, -- End_Label (Node4)
9346 5 => False), -- unused
9349 (1 => False, -- unused
9350 2 => False, -- unused
9351 3 => True, -- Component_Items (List3)
9352 4 => True, -- Variant_Part (Node4)
9353 5 => False), -- unused
9355 N_Component_Declaration =>
9356 (1 => True, -- Defining_Identifier (Node1)
9357 2 => False, -- unused
9358 3 => True, -- Expression (Node3)
9359 4 => True, -- Component_Definition (Node4)
9360 5 => False), -- unused
9363 (1 => True, -- Variants (List1)
9364 2 => True, -- Name (Node2)
9365 3 => False, -- unused
9366 4 => False, -- unused
9367 5 => False), -- unused
9370 (1 => True, -- Component_List (Node1)
9371 2 => False, -- Enclosing_Variant (Node2-Sem)
9372 3 => False, -- Present_Expr (Uint3-Sem)
9373 4 => True, -- Discrete_Choices (List4)
9374 5 => False), -- Dcheck_Function (Node5-Sem)
9377 (1 => False, -- Others_Discrete_Choices (List1-Sem)
9378 2 => False, -- unused
9379 3 => False, -- unused
9380 4 => False, -- unused
9381 5 => False), -- unused
9383 N_Access_To_Object_Definition =>
9384 (1 => False, -- unused
9385 2 => False, -- unused
9386 3 => False, -- unused
9387 4 => False, -- unused
9388 5 => True), -- Subtype_Indication (Node5)
9390 N_Access_Function_Definition =>
9391 (1 => False, -- unused
9392 2 => False, -- unused
9393 3 => True, -- Parameter_Specifications (List3)
9394 4 => True, -- Result_Definition (Node4)
9395 5 => False), -- unused
9397 N_Access_Procedure_Definition =>
9398 (1 => False, -- unused
9399 2 => False, -- unused
9400 3 => True, -- Parameter_Specifications (List3)
9401 4 => False, -- unused
9402 5 => False), -- unused
9404 N_Access_Definition =>
9405 (1 => False, -- unused
9406 2 => False, -- unused
9407 3 => True, -- Access_To_Subprogram_Definition (Node3)
9408 4 => True, -- Subtype_Mark (Node4)
9409 5 => False), -- unused
9411 N_Incomplete_Type_Declaration =>
9412 (1 => True, -- Defining_Identifier (Node1)
9413 2 => False, -- unused
9414 3 => False, -- unused
9415 4 => True, -- Discriminant_Specifications (List4)
9416 5 => False), -- unused
9418 N_Explicit_Dereference =>
9419 (1 => False, -- unused
9420 2 => False, -- unused
9421 3 => True, -- Prefix (Node3)
9422 4 => False, -- Actual_Designated_Subtype (Node4-Sem)
9423 5 => False), -- Etype (Node5-Sem)
9425 N_Indexed_Component =>
9426 (1 => True, -- Expressions (List1)
9427 2 => False, -- unused
9428 3 => True, -- Prefix (Node3)
9429 4 => False, -- unused
9430 5 => False), -- Etype (Node5-Sem)
9433 (1 => False, -- unused
9434 2 => False, -- unused
9435 3 => True, -- Prefix (Node3)
9436 4 => True, -- Discrete_Range (Node4)
9437 5 => False), -- Etype (Node5-Sem)
9439 N_Selected_Component =>
9440 (1 => False, -- unused
9441 2 => True, -- Selector_Name (Node2)
9442 3 => True, -- Prefix (Node3)
9443 4 => False, -- unused
9444 5 => False), -- Etype (Node5-Sem)
9446 N_Attribute_Reference =>
9447 (1 => True, -- Expressions (List1)
9448 2 => True, -- Attribute_Name (Name2)
9449 3 => True, -- Prefix (Node3)
9450 4 => False, -- Entity (Node4-Sem)
9451 5 => False), -- Etype (Node5-Sem)
9454 (1 => True, -- Expressions (List1)
9455 2 => True, -- Component_Associations (List2)
9456 3 => False, -- Aggregate_Bounds (Node3-Sem)
9457 4 => False, -- unused
9458 5 => False), -- Etype (Node5-Sem)
9460 N_Component_Association =>
9461 (1 => True, -- Choices (List1)
9462 2 => False, -- Loop_Actions (List2-Sem)
9463 3 => True, -- Expression (Node3)
9464 4 => False, -- unused
9465 5 => False), -- unused
9467 N_Extension_Aggregate =>
9468 (1 => True, -- Expressions (List1)
9469 2 => True, -- Component_Associations (List2)
9470 3 => True, -- Ancestor_Part (Node3)
9471 4 => False, -- unused
9472 5 => False), -- Etype (Node5-Sem)
9475 (1 => False, -- unused
9476 2 => False, -- unused
9477 3 => False, -- unused
9478 4 => False, -- unused
9479 5 => False), -- Etype (Node5-Sem)
9482 (1 => False, -- Actions (List1-Sem)
9483 2 => True, -- Left_Opnd (Node2)
9484 3 => True, -- Right_Opnd (Node3)
9485 4 => False, -- unused
9486 5 => False), -- Etype (Node5-Sem)
9489 (1 => False, -- Actions (List1-Sem)
9490 2 => True, -- Left_Opnd (Node2)
9491 3 => True, -- Right_Opnd (Node3)
9492 4 => False, -- unused
9493 5 => False), -- Etype (Node5-Sem)
9496 (1 => False, -- unused
9497 2 => True, -- Left_Opnd (Node2)
9498 3 => True, -- Right_Opnd (Node3)
9499 4 => False, -- unused
9500 5 => False), -- Etype (Node5-Sem)
9503 (1 => False, -- unused
9504 2 => True, -- Left_Opnd (Node2)
9505 3 => True, -- Right_Opnd (Node3)
9506 4 => False, -- unused
9507 5 => False), -- Etype (Node5-Sem)
9510 (1 => True, -- Chars (Name1)
9511 2 => True, -- Left_Opnd (Node2)
9512 3 => True, -- Right_Opnd (Node3)
9513 4 => False, -- Entity (Node4-Sem)
9514 5 => False), -- Etype (Node5-Sem)
9517 (1 => True, -- Chars (Name1)
9518 2 => True, -- Left_Opnd (Node2)
9519 3 => True, -- Right_Opnd (Node3)
9520 4 => False, -- Entity (Node4-Sem)
9521 5 => False), -- Etype (Node5-Sem)
9524 (1 => True, -- Chars (Name1)
9525 2 => True, -- Left_Opnd (Node2)
9526 3 => True, -- Right_Opnd (Node3)
9527 4 => False, -- Entity (Node4-Sem)
9528 5 => False), -- Etype (Node5-Sem)
9531 (1 => True, -- Chars (Name1)
9532 2 => True, -- Left_Opnd (Node2)
9533 3 => True, -- Right_Opnd (Node3)
9534 4 => False, -- Entity (Node4-Sem)
9535 5 => False), -- Etype (Node5-Sem)
9538 (1 => True, -- Chars (Name1)
9539 2 => True, -- Left_Opnd (Node2)
9540 3 => True, -- Right_Opnd (Node3)
9541 4 => False, -- Entity (Node4-Sem)
9542 5 => False), -- Etype (Node5-Sem)
9545 (1 => True, -- Chars (Name1)
9546 2 => True, -- Left_Opnd (Node2)
9547 3 => True, -- Right_Opnd (Node3)
9548 4 => False, -- Entity (Node4-Sem)
9549 5 => False), -- Etype (Node5-Sem)
9552 (1 => True, -- Chars (Name1)
9553 2 => True, -- Left_Opnd (Node2)
9554 3 => True, -- Right_Opnd (Node3)
9555 4 => False, -- Entity (Node4-Sem)
9556 5 => False), -- Etype (Node5-Sem)
9559 (1 => True, -- Chars (Name1)
9560 2 => True, -- Left_Opnd (Node2)
9561 3 => True, -- Right_Opnd (Node3)
9562 4 => False, -- Entity (Node4-Sem)
9563 5 => False), -- Etype (Node5-Sem)
9566 (1 => True, -- Chars (Name1)
9567 2 => True, -- Left_Opnd (Node2)
9568 3 => True, -- Right_Opnd (Node3)
9569 4 => False, -- Entity (Node4-Sem)
9570 5 => False), -- Etype (Node5-Sem)
9573 (1 => True, -- Chars (Name1)
9574 2 => True, -- Left_Opnd (Node2)
9575 3 => True, -- Right_Opnd (Node3)
9576 4 => False, -- Entity (Node4-Sem)
9577 5 => False), -- Etype (Node5-Sem)
9580 (1 => True, -- Chars (Name1)
9581 2 => True, -- Left_Opnd (Node2)
9582 3 => True, -- Right_Opnd (Node3)
9583 4 => False, -- Entity (Node4-Sem)
9584 5 => False), -- Etype (Node5-Sem)
9587 (1 => True, -- Chars (Name1)
9588 2 => True, -- Left_Opnd (Node2)
9589 3 => True, -- Right_Opnd (Node3)
9590 4 => False, -- Entity (Node4-Sem)
9591 5 => False), -- Etype (Node5-Sem)
9594 (1 => True, -- Chars (Name1)
9595 2 => True, -- Left_Opnd (Node2)
9596 3 => True, -- Right_Opnd (Node3)
9597 4 => False, -- Entity (Node4-Sem)
9598 5 => False), -- Etype (Node5-Sem)
9601 (1 => True, -- Chars (Name1)
9602 2 => True, -- Left_Opnd (Node2)
9603 3 => True, -- Right_Opnd (Node3)
9604 4 => False, -- Entity (Node4-Sem)
9605 5 => False), -- Etype (Node5-Sem)
9608 (1 => True, -- Chars (Name1)
9609 2 => True, -- Left_Opnd (Node2)
9610 3 => True, -- Right_Opnd (Node3)
9611 4 => False, -- Entity (Node4-Sem)
9612 5 => False), -- Etype (Node5-Sem)
9615 (1 => True, -- Chars (Name1)
9616 2 => True, -- Left_Opnd (Node2)
9617 3 => True, -- Right_Opnd (Node3)
9618 4 => False, -- Entity (Node4-Sem)
9619 5 => False), -- Etype (Node5-Sem)
9622 (1 => True, -- Chars (Name1)
9623 2 => True, -- Left_Opnd (Node2)
9624 3 => True, -- Right_Opnd (Node3)
9625 4 => False, -- Entity (Node4-Sem)
9626 5 => False), -- Etype (Node5-Sem)
9629 (1 => True, -- Chars (Name1)
9630 2 => False, -- unused
9631 3 => True, -- Right_Opnd (Node3)
9632 4 => False, -- Entity (Node4-Sem)
9633 5 => False), -- Etype (Node5-Sem)
9636 (1 => True, -- Chars (Name1)
9637 2 => False, -- unused
9638 3 => True, -- Right_Opnd (Node3)
9639 4 => False, -- Entity (Node4-Sem)
9640 5 => False), -- Etype (Node5-Sem)
9643 (1 => True, -- Chars (Name1)
9644 2 => False, -- unused
9645 3 => True, -- Right_Opnd (Node3)
9646 4 => False, -- Entity (Node4-Sem)
9647 5 => False), -- Etype (Node5-Sem)
9650 (1 => True, -- Chars (Name1)
9651 2 => False, -- unused
9652 3 => True, -- Right_Opnd (Node3)
9653 4 => False, -- Entity (Node4-Sem)
9654 5 => False), -- Etype (Node5-Sem)
9656 N_Type_Conversion =>
9657 (1 => False, -- unused
9658 2 => False, -- unused
9659 3 => True, -- Expression (Node3)
9660 4 => True, -- Subtype_Mark (Node4)
9661 5 => False), -- Etype (Node5-Sem)
9663 N_Qualified_Expression =>
9664 (1 => False, -- unused
9665 2 => False, -- unused
9666 3 => True, -- Expression (Node3)
9667 4 => True, -- Subtype_Mark (Node4)
9668 5 => False), -- Etype (Node5-Sem)
9671 (1 => False, -- Storage_Pool (Node1-Sem)
9672 2 => False, -- Procedure_To_Call (Node2-Sem)
9673 3 => True, -- Expression (Node3)
9674 4 => False, -- Coextensions (Elist4-Sem)
9675 5 => False), -- Etype (Node5-Sem)
9678 (1 => False, -- unused
9679 2 => False, -- unused
9680 3 => False, -- unused
9681 4 => False, -- unused
9682 5 => False), -- unused
9685 (1 => True, -- Identifier (Node1)
9686 2 => False, -- unused
9687 3 => False, -- unused
9688 4 => False, -- unused
9689 5 => False), -- unused
9691 N_Assignment_Statement =>
9692 (1 => False, -- unused
9693 2 => True, -- Name (Node2)
9694 3 => True, -- Expression (Node3)
9695 4 => False, -- unused
9696 5 => False), -- unused
9699 (1 => True, -- Condition (Node1)
9700 2 => True, -- Then_Statements (List2)
9701 3 => True, -- Elsif_Parts (List3)
9702 4 => True, -- Else_Statements (List4)
9703 5 => True), -- End_Span (Uint5)
9706 (1 => True, -- Condition (Node1)
9707 2 => True, -- Then_Statements (List2)
9708 3 => False, -- Condition_Actions (List3-Sem)
9709 4 => False, -- unused
9710 5 => False), -- unused
9713 (1 => False, -- unused
9714 2 => False, -- unused
9715 3 => True, -- Expression (Node3)
9716 4 => True, -- Alternatives (List4)
9717 5 => True), -- End_Span (Uint5)
9719 N_Case_Statement_Alternative =>
9720 (1 => False, -- unused
9721 2 => False, -- unused
9722 3 => True, -- Statements (List3)
9723 4 => True, -- Discrete_Choices (List4)
9724 5 => False), -- unused
9727 (1 => True, -- Identifier (Node1)
9728 2 => True, -- Iteration_Scheme (Node2)
9729 3 => True, -- Statements (List3)
9730 4 => True, -- End_Label (Node4)
9731 5 => False), -- unused
9733 N_Iteration_Scheme =>
9734 (1 => True, -- Condition (Node1)
9735 2 => False, -- unused
9736 3 => False, -- Condition_Actions (List3-Sem)
9737 4 => True, -- Loop_Parameter_Specification (Node4)
9738 5 => False), -- unused
9740 N_Loop_Parameter_Specification =>
9741 (1 => True, -- Defining_Identifier (Node1)
9742 2 => False, -- unused
9743 3 => False, -- unused
9744 4 => True, -- Discrete_Subtype_Definition (Node4)
9745 5 => False), -- unused
9747 N_Block_Statement =>
9748 (1 => True, -- Identifier (Node1)
9749 2 => True, -- Declarations (List2)
9750 3 => False, -- Activation_Chain_Entity (Node3-Sem)
9751 4 => True, -- Handled_Statement_Sequence (Node4)
9752 5 => False), -- unused
9755 (1 => True, -- Condition (Node1)
9756 2 => True, -- Name (Node2)
9757 3 => False, -- unused
9758 4 => False, -- unused
9759 5 => False), -- unused
9762 (1 => False, -- unused
9763 2 => True, -- Name (Node2)
9764 3 => False, -- unused
9765 4 => False, -- unused
9766 5 => False), -- unused
9768 N_Subprogram_Declaration =>
9769 (1 => True, -- Specification (Node1)
9770 2 => False, -- unused
9771 3 => False, -- Body_To_Inline (Node3-Sem)
9772 4 => False, -- Parent_Spec (Node4-Sem)
9773 5 => False), -- Corresponding_Body (Node5-Sem)
9775 N_Abstract_Subprogram_Declaration =>
9776 (1 => True, -- Specification (Node1)
9777 2 => False, -- unused
9778 3 => False, -- unused
9779 4 => False, -- unused
9780 5 => False), -- unused
9782 N_Function_Specification =>
9783 (1 => True, -- Defining_Unit_Name (Node1)
9784 2 => False, -- Elaboration_Boolean (Node2-Sem)
9785 3 => True, -- Parameter_Specifications (List3)
9786 4 => True, -- Result_Definition (Node4)
9787 5 => False), -- Generic_Parent (Node5-Sem)
9789 N_Procedure_Specification =>
9790 (1 => True, -- Defining_Unit_Name (Node1)
9791 2 => False, -- Elaboration_Boolean (Node2-Sem)
9792 3 => True, -- Parameter_Specifications (List3)
9793 4 => False, -- unused
9794 5 => False), -- Generic_Parent (Node5-Sem)
9797 (1 => True, -- Identifier (Node1)
9798 2 => True, -- Name (Node2)
9799 3 => False, -- unused
9800 4 => False, -- unused
9801 5 => False), -- unused
9803 N_Defining_Program_Unit_Name =>
9804 (1 => True, -- Defining_Identifier (Node1)
9805 2 => True, -- Name (Node2)
9806 3 => False, -- unused
9807 4 => False, -- unused
9808 5 => False), -- unused
9810 N_Operator_Symbol =>
9811 (1 => True, -- Chars (Name1)
9812 2 => False, -- unused
9813 3 => True, -- Strval (Str3)
9814 4 => False, -- Entity (Node4-Sem)
9815 5 => False), -- Etype (Node5-Sem)
9817 N_Defining_Operator_Symbol =>
9818 (1 => True, -- Chars (Name1)
9819 2 => False, -- Next_Entity (Node2-Sem)
9820 3 => False, -- Scope (Node3-Sem)
9821 4 => False, -- unused
9822 5 => False), -- Etype (Node5-Sem)
9824 N_Parameter_Specification =>
9825 (1 => True, -- Defining_Identifier (Node1)
9826 2 => True, -- Parameter_Type (Node2)
9827 3 => True, -- Expression (Node3)
9828 4 => False, -- unused
9829 5 => False), -- Default_Expression (Node5-Sem)
9831 N_Subprogram_Body =>
9832 (1 => True, -- Specification (Node1)
9833 2 => True, -- Declarations (List2)
9834 3 => False, -- Activation_Chain_Entity (Node3-Sem)
9835 4 => True, -- Handled_Statement_Sequence (Node4)
9836 5 => False), -- Corresponding_Spec (Node5-Sem)
9838 N_Procedure_Call_Statement =>
9839 (1 => False, -- Controlling_Argument (Node1-Sem)
9840 2 => True, -- Name (Node2)
9841 3 => True, -- Parameter_Associations (List3)
9842 4 => False, -- First_Named_Actual (Node4-Sem)
9843 5 => False), -- Etype (Node5-Sem)
9846 (1 => False, -- Controlling_Argument (Node1-Sem)
9847 2 => True, -- Name (Node2)
9848 3 => True, -- Parameter_Associations (List3)
9849 4 => False, -- First_Named_Actual (Node4-Sem)
9850 5 => False), -- Etype (Node5-Sem)
9852 N_Parameter_Association =>
9853 (1 => False, -- unused
9854 2 => True, -- Selector_Name (Node2)
9855 3 => True, -- Explicit_Actual_Parameter (Node3)
9856 4 => False, -- Next_Named_Actual (Node4-Sem)
9857 5 => False), -- unused
9859 N_Return_Statement =>
9860 (1 => False, -- Storage_Pool (Node1-Sem)
9861 2 => False, -- Procedure_To_Call (Node2-Sem)
9862 3 => True, -- Expression (Node3)
9863 4 => False, -- unused
9864 5 => False), -- Return_Statement_Entity (Node5-Sem)
9866 N_Extended_Return_Statement =>
9867 (1 => False, -- Storage_Pool (Node1-Sem)
9868 2 => False, -- Procedure_To_Call (Node2-Sem)
9869 3 => True, -- Return_Object_Declarations (List3)
9870 4 => True, -- Handled_Statement_Sequence (Node4)
9871 5 => False), -- Return_Statement_Entity (Node5-Sem)
9873 N_Package_Declaration =>
9874 (1 => True, -- Specification (Node1)
9875 2 => False, -- unused
9876 3 => False, -- Activation_Chain_Entity (Node3-Sem)
9877 4 => False, -- Parent_Spec (Node4-Sem)
9878 5 => False), -- Corresponding_Body (Node5-Sem)
9880 N_Package_Specification =>
9881 (1 => True, -- Defining_Unit_Name (Node1)
9882 2 => True, -- Visible_Declarations (List2)
9883 3 => True, -- Private_Declarations (List3)
9884 4 => True, -- End_Label (Node4)
9885 5 => False), -- Generic_Parent (Node5-Sem)
9888 (1 => True, -- Defining_Unit_Name (Node1)
9889 2 => True, -- Declarations (List2)
9890 3 => False, -- unused
9891 4 => True, -- Handled_Statement_Sequence (Node4)
9892 5 => False), -- Corresponding_Spec (Node5-Sem)
9894 N_Private_Type_Declaration =>
9895 (1 => True, -- Defining_Identifier (Node1)
9896 2 => False, -- unused
9897 3 => False, -- unused
9898 4 => True, -- Discriminant_Specifications (List4)
9899 5 => False), -- unused
9901 N_Private_Extension_Declaration =>
9902 (1 => True, -- Defining_Identifier (Node1)
9903 2 => True, -- Interface_List (List2)
9904 3 => False, -- unused
9905 4 => True, -- Discriminant_Specifications (List4)
9906 5 => True), -- Subtype_Indication (Node5)
9908 N_Use_Package_Clause =>
9909 (1 => False, -- unused
9910 2 => True, -- Names (List2)
9911 3 => False, -- Next_Use_Clause (Node3-Sem)
9912 4 => False, -- Hidden_By_Use_Clause (Elist4-Sem)
9913 5 => False), -- unused
9915 N_Use_Type_Clause =>
9916 (1 => False, -- unused
9917 2 => True, -- Subtype_Marks (List2)
9918 3 => False, -- Next_Use_Clause (Node3-Sem)
9919 4 => False, -- Hidden_By_Use_Clause (Elist4-Sem)
9920 5 => False), -- unused
9922 N_Object_Renaming_Declaration =>
9923 (1 => True, -- Defining_Identifier (Node1)
9924 2 => True, -- Name (Node2)
9925 3 => True, -- Access_Definition (Node3)
9926 4 => True, -- Subtype_Mark (Node4)
9927 5 => False), -- Corresponding_Generic_Association (Node5-Sem)
9929 N_Exception_Renaming_Declaration =>
9930 (1 => True, -- Defining_Identifier (Node1)
9931 2 => True, -- Name (Node2)
9932 3 => False, -- unused
9933 4 => False, -- unused
9934 5 => False), -- unused
9936 N_Package_Renaming_Declaration =>
9937 (1 => True, -- Defining_Unit_Name (Node1)
9938 2 => True, -- Name (Node2)
9939 3 => False, -- unused
9940 4 => False, -- Parent_Spec (Node4-Sem)
9941 5 => False), -- unused
9943 N_Subprogram_Renaming_Declaration =>
9944 (1 => True, -- Specification (Node1)
9945 2 => True, -- Name (Node2)
9946 3 => False, -- Corresponding_Formal_Spec (Node3-Sem)
9947 4 => False, -- Parent_Spec (Node4-Sem)
9948 5 => False), -- Corresponding_Spec (Node5-Sem)
9950 N_Generic_Package_Renaming_Declaration =>
9951 (1 => True, -- Defining_Unit_Name (Node1)
9952 2 => True, -- Name (Node2)
9953 3 => False, -- unused
9954 4 => False, -- Parent_Spec (Node4-Sem)
9955 5 => False), -- unused
9957 N_Generic_Procedure_Renaming_Declaration =>
9958 (1 => True, -- Defining_Unit_Name (Node1)
9959 2 => True, -- Name (Node2)
9960 3 => False, -- unused
9961 4 => False, -- Parent_Spec (Node4-Sem)
9962 5 => False), -- unused
9964 N_Generic_Function_Renaming_Declaration =>
9965 (1 => True, -- Defining_Unit_Name (Node1)
9966 2 => True, -- Name (Node2)
9967 3 => False, -- unused
9968 4 => False, -- Parent_Spec (Node4-Sem)
9969 5 => False), -- unused
9971 N_Task_Type_Declaration =>
9972 (1 => True, -- Defining_Identifier (Node1)
9973 2 => True, -- Interface_List (List2)
9974 3 => True, -- Task_Definition (Node3)
9975 4 => True, -- Discriminant_Specifications (List4)
9976 5 => False), -- Corresponding_Body (Node5-Sem)
9978 N_Single_Task_Declaration =>
9979 (1 => True, -- Defining_Identifier (Node1)
9980 2 => True, -- Interface_List (List2)
9981 3 => True, -- Task_Definition (Node3)
9982 4 => False, -- unused
9983 5 => False), -- unused
9985 N_Task_Definition =>
9986 (1 => False, -- unused
9987 2 => True, -- Visible_Declarations (List2)
9988 3 => True, -- Private_Declarations (List3)
9989 4 => True, -- End_Label (Node4)
9990 5 => False), -- unused
9993 (1 => True, -- Defining_Identifier (Node1)
9994 2 => True, -- Declarations (List2)
9995 3 => False, -- Activation_Chain_Entity (Node3-Sem)
9996 4 => True, -- Handled_Statement_Sequence (Node4)
9997 5 => False), -- Corresponding_Spec (Node5-Sem)
9999 N_Protected_Type_Declaration =>
10000 (1 => True, -- Defining_Identifier (Node1)
10001 2 => True, -- Interface_List (List2)
10002 3 => True, -- Protected_Definition (Node3)
10003 4 => True, -- Discriminant_Specifications (List4)
10004 5 => False), -- Corresponding_Body (Node5-Sem)
10006 N_Single_Protected_Declaration =>
10007 (1 => True, -- Defining_Identifier (Node1)
10008 2 => True, -- Interface_List (List2)
10009 3 => True, -- Protected_Definition (Node3)
10010 4 => False, -- unused
10011 5 => False), -- unused
10013 N_Protected_Definition =>
10014 (1 => False, -- unused
10015 2 => True, -- Visible_Declarations (List2)
10016 3 => True, -- Private_Declarations (List3)
10017 4 => True, -- End_Label (Node4)
10018 5 => False), -- unused
10020 N_Protected_Body =>
10021 (1 => True, -- Defining_Identifier (Node1)
10022 2 => True, -- Declarations (List2)
10023 3 => False, -- unused
10024 4 => True, -- End_Label (Node4)
10025 5 => False), -- Corresponding_Spec (Node5-Sem)
10027 N_Entry_Declaration =>
10028 (1 => True, -- Defining_Identifier (Node1)
10029 2 => False, -- unused
10030 3 => True, -- Parameter_Specifications (List3)
10031 4 => True, -- Discrete_Subtype_Definition (Node4)
10032 5 => False), -- Corresponding_Body (Node5-Sem)
10034 N_Accept_Statement =>
10035 (1 => True, -- Entry_Direct_Name (Node1)
10036 2 => True, -- Declarations (List2)
10037 3 => True, -- Parameter_Specifications (List3)
10038 4 => True, -- Handled_Statement_Sequence (Node4)
10039 5 => True), -- Entry_Index (Node5)
10042 (1 => True, -- Defining_Identifier (Node1)
10043 2 => True, -- Declarations (List2)
10044 3 => False, -- Activation_Chain_Entity (Node3-Sem)
10045 4 => True, -- Handled_Statement_Sequence (Node4)
10046 5 => True), -- Entry_Body_Formal_Part (Node5)
10048 N_Entry_Body_Formal_Part =>
10049 (1 => True, -- Condition (Node1)
10050 2 => False, -- unused
10051 3 => True, -- Parameter_Specifications (List3)
10052 4 => True, -- Entry_Index_Specification (Node4)
10053 5 => False), -- unused
10055 N_Entry_Index_Specification =>
10056 (1 => True, -- Defining_Identifier (Node1)
10057 2 => False, -- unused
10058 3 => False, -- unused
10059 4 => True, -- Discrete_Subtype_Definition (Node4)
10060 5 => False), -- unused
10062 N_Entry_Call_Statement =>
10063 (1 => False, -- unused
10064 2 => True, -- Name (Node2)
10065 3 => True, -- Parameter_Associations (List3)
10066 4 => False, -- First_Named_Actual (Node4-Sem)
10067 5 => False), -- unused
10069 N_Requeue_Statement =>
10070 (1 => False, -- unused
10071 2 => True, -- Name (Node2)
10072 3 => False, -- unused
10073 4 => False, -- unused
10074 5 => False), -- unused
10076 N_Delay_Until_Statement =>
10077 (1 => False, -- unused
10078 2 => False, -- unused
10079 3 => True, -- Expression (Node3)
10080 4 => False, -- unused
10081 5 => False), -- unused
10083 N_Delay_Relative_Statement =>
10084 (1 => False, -- unused
10085 2 => False, -- unused
10086 3 => True, -- Expression (Node3)
10087 4 => False, -- unused
10088 5 => False), -- unused
10090 N_Selective_Accept =>
10091 (1 => True, -- Select_Alternatives (List1)
10092 2 => False, -- unused
10093 3 => False, -- unused
10094 4 => True, -- Else_Statements (List4)
10095 5 => False), -- unused
10097 N_Accept_Alternative =>
10098 (1 => True, -- Condition (Node1)
10099 2 => True, -- Accept_Statement (Node2)
10100 3 => True, -- Statements (List3)
10101 4 => True, -- Pragmas_Before (List4)
10102 5 => False), -- Accept_Handler_Records (List5-Sem)
10104 N_Delay_Alternative =>
10105 (1 => True, -- Condition (Node1)
10106 2 => True, -- Delay_Statement (Node2)
10107 3 => True, -- Statements (List3)
10108 4 => True, -- Pragmas_Before (List4)
10109 5 => False), -- unused
10111 N_Terminate_Alternative =>
10112 (1 => True, -- Condition (Node1)
10113 2 => False, -- unused
10114 3 => False, -- unused
10115 4 => True, -- Pragmas_Before (List4)
10116 5 => True), -- Pragmas_After (List5)
10118 N_Timed_Entry_Call =>
10119 (1 => True, -- Entry_Call_Alternative (Node1)
10120 2 => False, -- unused
10121 3 => False, -- unused
10122 4 => True, -- Delay_Alternative (Node4)
10123 5 => False), -- unused
10125 N_Entry_Call_Alternative =>
10126 (1 => True, -- Entry_Call_Statement (Node1)
10127 2 => False, -- unused
10128 3 => True, -- Statements (List3)
10129 4 => True, -- Pragmas_Before (List4)
10130 5 => False), -- unused
10132 N_Conditional_Entry_Call =>
10133 (1 => True, -- Entry_Call_Alternative (Node1)
10134 2 => False, -- unused
10135 3 => False, -- unused
10136 4 => True, -- Else_Statements (List4)
10137 5 => False), -- unused
10139 N_Asynchronous_Select =>
10140 (1 => True, -- Triggering_Alternative (Node1)
10141 2 => True, -- Abortable_Part (Node2)
10142 3 => False, -- unused
10143 4 => False, -- unused
10144 5 => False), -- unused
10146 N_Triggering_Alternative =>
10147 (1 => True, -- Triggering_Statement (Node1)
10148 2 => False, -- unused
10149 3 => True, -- Statements (List3)
10150 4 => True, -- Pragmas_Before (List4)
10151 5 => False), -- unused
10153 N_Abortable_Part =>
10154 (1 => False, -- unused
10155 2 => False, -- unused
10156 3 => True, -- Statements (List3)
10157 4 => False, -- unused
10158 5 => False), -- unused
10160 N_Abort_Statement =>
10161 (1 => False, -- unused
10162 2 => True, -- Names (List2)
10163 3 => False, -- unused
10164 4 => False, -- unused
10165 5 => False), -- unused
10167 N_Compilation_Unit =>
10168 (1 => True, -- Context_Items (List1)
10169 2 => True, -- Unit (Node2)
10170 3 => False, -- First_Inlined_Subprogram (Node3-Sem)
10171 4 => False, -- Library_Unit (Node4-Sem)
10172 5 => True), -- Aux_Decls_Node (Node5)
10174 N_Compilation_Unit_Aux =>
10175 (1 => True, -- Actions (List1)
10176 2 => True, -- Declarations (List2)
10177 3 => False, -- unused
10178 4 => True, -- Config_Pragmas (List4)
10179 5 => True), -- Pragmas_After (List5)
10182 (1 => False, -- unused
10183 2 => True, -- Name (Node2)
10184 3 => False, -- unused
10185 4 => False, -- Library_Unit (Node4-Sem)
10186 5 => False), -- Corresponding_Spec (Node5-Sem)
10188 N_Subprogram_Body_Stub =>
10189 (1 => True, -- Specification (Node1)
10190 2 => False, -- unused
10191 3 => False, -- unused
10192 4 => False, -- Library_Unit (Node4-Sem)
10193 5 => False), -- Corresponding_Body (Node5-Sem)
10195 N_Package_Body_Stub =>
10196 (1 => True, -- Defining_Identifier (Node1)
10197 2 => False, -- unused
10198 3 => False, -- unused
10199 4 => False, -- Library_Unit (Node4-Sem)
10200 5 => False), -- Corresponding_Body (Node5-Sem)
10202 N_Task_Body_Stub =>
10203 (1 => True, -- Defining_Identifier (Node1)
10204 2 => False, -- unused
10205 3 => False, -- unused
10206 4 => False, -- Library_Unit (Node4-Sem)
10207 5 => False), -- Corresponding_Body (Node5-Sem)
10209 N_Protected_Body_Stub =>
10210 (1 => True, -- Defining_Identifier (Node1)
10211 2 => False, -- unused
10212 3 => False, -- unused
10213 4 => False, -- Library_Unit (Node4-Sem)
10214 5 => False), -- Corresponding_Body (Node5-Sem)
10217 (1 => True, -- Proper_Body (Node1)
10218 2 => True, -- Name (Node2)
10219 3 => False, -- Corresponding_Stub (Node3-Sem)
10220 4 => False, -- unused
10221 5 => False), -- unused
10223 N_Exception_Declaration =>
10224 (1 => True, -- Defining_Identifier (Node1)
10225 2 => False, -- unused
10226 3 => False, -- Expression (Node3-Sem)
10227 4 => False, -- unused
10228 5 => False), -- unused
10230 N_Handled_Sequence_Of_Statements =>
10231 (1 => True, -- At_End_Proc (Node1)
10232 2 => False, -- First_Real_Statement (Node2-Sem)
10233 3 => True, -- Statements (List3)
10234 4 => True, -- End_Label (Node4)
10235 5 => True), -- Exception_Handlers (List5)
10237 N_Exception_Handler =>
10238 (1 => False, -- Local_Raise_Statements (Elist1)
10239 2 => True, -- Choice_Parameter (Node2)
10240 3 => True, -- Statements (List3)
10241 4 => True, -- Exception_Choices (List4)
10242 5 => False), -- Exception_Label (Node5)
10244 N_Raise_Statement =>
10245 (1 => False, -- unused
10246 2 => True, -- Name (Node2)
10247 3 => True, -- Expression (Node3)
10248 4 => False, -- unused
10249 5 => False), -- unused
10251 N_Generic_Subprogram_Declaration =>
10252 (1 => True, -- Specification (Node1)
10253 2 => True, -- Generic_Formal_Declarations (List2)
10254 3 => False, -- unused
10255 4 => False, -- Parent_Spec (Node4-Sem)
10256 5 => False), -- Corresponding_Body (Node5-Sem)
10258 N_Generic_Package_Declaration =>
10259 (1 => True, -- Specification (Node1)
10260 2 => True, -- Generic_Formal_Declarations (List2)
10261 3 => False, -- Activation_Chain_Entity (Node3-Sem)
10262 4 => False, -- Parent_Spec (Node4-Sem)
10263 5 => False), -- Corresponding_Body (Node5-Sem)
10265 N_Package_Instantiation =>
10266 (1 => True, -- Defining_Unit_Name (Node1)
10267 2 => True, -- Name (Node2)
10268 3 => True, -- Generic_Associations (List3)
10269 4 => False, -- Parent_Spec (Node4-Sem)
10270 5 => False), -- Instance_Spec (Node5-Sem)
10272 N_Procedure_Instantiation =>
10273 (1 => True, -- Defining_Unit_Name (Node1)
10274 2 => True, -- Name (Node2)
10275 3 => True, -- Generic_Associations (List3)
10276 4 => False, -- Parent_Spec (Node4-Sem)
10277 5 => False), -- Instance_Spec (Node5-Sem)
10279 N_Function_Instantiation =>
10280 (1 => True, -- Defining_Unit_Name (Node1)
10281 2 => True, -- Name (Node2)
10282 3 => True, -- Generic_Associations (List3)
10283 4 => False, -- Parent_Spec (Node4-Sem)
10284 5 => False), -- Instance_Spec (Node5-Sem)
10286 N_Generic_Association =>
10287 (1 => True, -- Explicit_Generic_Actual_Parameter (Node1)
10288 2 => True, -- Selector_Name (Node2)
10289 3 => False, -- unused
10290 4 => False, -- unused
10291 5 => False), -- unused
10293 N_Formal_Object_Declaration =>
10294 (1 => True, -- Defining_Identifier (Node1)
10295 2 => False, -- unused
10296 3 => True, -- Access_Definition (Node3)
10297 4 => True, -- Subtype_Mark (Node4)
10298 5 => True), -- Default_Expression (Node5)
10300 N_Formal_Type_Declaration =>
10301 (1 => True, -- Defining_Identifier (Node1)
10302 2 => False, -- unused
10303 3 => True, -- Formal_Type_Definition (Node3)
10304 4 => True, -- Discriminant_Specifications (List4)
10305 5 => False), -- unused
10307 N_Formal_Private_Type_Definition =>
10308 (1 => False, -- unused
10309 2 => False, -- unused
10310 3 => False, -- unused
10311 4 => False, -- unused
10312 5 => False), -- unused
10314 N_Formal_Derived_Type_Definition =>
10315 (1 => False, -- unused
10316 2 => True, -- Interface_List (List2)
10317 3 => False, -- unused
10318 4 => True, -- Subtype_Mark (Node4)
10319 5 => False), -- unused
10321 N_Formal_Discrete_Type_Definition =>
10322 (1 => False, -- unused
10323 2 => False, -- unused
10324 3 => False, -- unused
10325 4 => False, -- unused
10326 5 => False), -- unused
10328 N_Formal_Signed_Integer_Type_Definition =>
10329 (1 => False, -- unused
10330 2 => False, -- unused
10331 3 => False, -- unused
10332 4 => False, -- unused
10333 5 => False), -- unused
10335 N_Formal_Modular_Type_Definition =>
10336 (1 => False, -- unused
10337 2 => False, -- unused
10338 3 => False, -- unused
10339 4 => False, -- unused
10340 5 => False), -- unused
10342 N_Formal_Floating_Point_Definition =>
10343 (1 => False, -- unused
10344 2 => False, -- unused
10345 3 => False, -- unused
10346 4 => False, -- unused
10347 5 => False), -- unused
10349 N_Formal_Ordinary_Fixed_Point_Definition =>
10350 (1 => False, -- unused
10351 2 => False, -- unused
10352 3 => False, -- unused
10353 4 => False, -- unused
10354 5 => False), -- unused
10356 N_Formal_Decimal_Fixed_Point_Definition =>
10357 (1 => False, -- unused
10358 2 => False, -- unused
10359 3 => False, -- unused
10360 4 => False, -- unused
10361 5 => False), -- unused
10363 N_Formal_Concrete_Subprogram_Declaration =>
10364 (1 => True, -- Specification (Node1)
10365 2 => True, -- Default_Name (Node2)
10366 3 => False, -- unused
10367 4 => False, -- unused
10368 5 => False), -- unused
10370 N_Formal_Abstract_Subprogram_Declaration =>
10371 (1 => True, -- Specification (Node1)
10372 2 => True, -- Default_Name (Node2)
10373 3 => False, -- unused
10374 4 => False, -- unused
10375 5 => False), -- unused
10377 N_Formal_Package_Declaration =>
10378 (1 => True, -- Defining_Identifier (Node1)
10379 2 => True, -- Name (Node2)
10380 3 => True, -- Generic_Associations (List3)
10381 4 => False, -- unused
10382 5 => False), -- Instance_Spec (Node5-Sem)
10384 N_Attribute_Definition_Clause =>
10385 (1 => True, -- Chars (Name1)
10386 2 => True, -- Name (Node2)
10387 3 => True, -- Expression (Node3)
10388 4 => False, -- unused
10389 5 => False), -- Next_Rep_Item (Node5-Sem)
10391 N_Enumeration_Representation_Clause =>
10392 (1 => True, -- Identifier (Node1)
10393 2 => False, -- unused
10394 3 => True, -- Array_Aggregate (Node3)
10395 4 => False, -- unused
10396 5 => False), -- Next_Rep_Item (Node5-Sem)
10398 N_Record_Representation_Clause =>
10399 (1 => True, -- Identifier (Node1)
10400 2 => True, -- Mod_Clause (Node2)
10401 3 => True, -- Component_Clauses (List3)
10402 4 => False, -- unused
10403 5 => False), -- Next_Rep_Item (Node5-Sem)
10405 N_Component_Clause =>
10406 (1 => True, -- Component_Name (Node1)
10407 2 => True, -- Position (Node2)
10408 3 => True, -- First_Bit (Node3)
10409 4 => True, -- Last_Bit (Node4)
10410 5 => False), -- unused
10412 N_Code_Statement =>
10413 (1 => False, -- unused
10414 2 => False, -- unused
10415 3 => True, -- Expression (Node3)
10416 4 => False, -- unused
10417 5 => False), -- unused
10419 N_Op_Rotate_Left =>
10420 (1 => True, -- Chars (Name1)
10421 2 => True, -- Left_Opnd (Node2)
10422 3 => True, -- Right_Opnd (Node3)
10423 4 => False, -- Entity (Node4-Sem)
10424 5 => False), -- Etype (Node5-Sem)
10426 N_Op_Rotate_Right =>
10427 (1 => True, -- Chars (Name1)
10428 2 => True, -- Left_Opnd (Node2)
10429 3 => True, -- Right_Opnd (Node3)
10430 4 => False, -- Entity (Node4-Sem)
10431 5 => False), -- Etype (Node5-Sem)
10434 (1 => True, -- Chars (Name1)
10435 2 => True, -- Left_Opnd (Node2)
10436 3 => True, -- Right_Opnd (Node3)
10437 4 => False, -- Entity (Node4-Sem)
10438 5 => False), -- Etype (Node5-Sem)
10440 N_Op_Shift_Right_Arithmetic =>
10441 (1 => True, -- Chars (Name1)
10442 2 => True, -- Left_Opnd (Node2)
10443 3 => True, -- Right_Opnd (Node3)
10444 4 => False, -- Entity (Node4-Sem)
10445 5 => False), -- Etype (Node5-Sem)
10447 N_Op_Shift_Right =>
10448 (1 => True, -- Chars (Name1)
10449 2 => True, -- Left_Opnd (Node2)
10450 3 => True, -- Right_Opnd (Node3)
10451 4 => False, -- Entity (Node4-Sem)
10452 5 => False), -- Etype (Node5-Sem)
10454 N_Delta_Constraint =>
10455 (1 => False, -- unused
10456 2 => False, -- unused
10457 3 => True, -- Delta_Expression (Node3)
10458 4 => True, -- Range_Constraint (Node4)
10459 5 => False), -- unused
10462 (1 => True, -- Identifier (Node1)
10463 2 => False, -- unused
10464 3 => True, -- Expression (Node3)
10465 4 => False, -- unused
10466 5 => False), -- unused
10469 (1 => False, -- unused
10470 2 => False, -- unused
10471 3 => True, -- Expression (Node3)
10472 4 => True, -- Pragmas_Before (List4)
10473 5 => False), -- unused
10475 N_Conditional_Expression =>
10476 (1 => True, -- Expressions (List1)
10477 2 => False, -- Then_Actions (List2-Sem)
10478 3 => False, -- Else_Actions (List3-Sem)
10479 4 => False, -- unused
10480 5 => False), -- Etype (Node5-Sem)
10483 (1 => True, -- Chars (Name1)
10484 2 => True, -- Selector_Name (Node2)
10485 3 => True, -- Prefix (Node3)
10486 4 => False, -- Entity (Node4-Sem)
10487 5 => False), -- Etype (Node5-Sem)
10489 N_Free_Statement =>
10490 (1 => False, -- Storage_Pool (Node1-Sem)
10491 2 => False, -- Procedure_To_Call (Node2-Sem)
10492 3 => True, -- Expression (Node3)
10493 4 => False, -- Actual_Designated_Subtype (Node4-Sem)
10494 5 => False), -- unused
10497 (1 => True, -- Actions (List1)
10498 2 => False, -- Access_Types_To_Process (Elist2-Sem)
10499 3 => False, -- TSS_Elist (Elist3-Sem)
10500 4 => False, -- Entity (Node4-Sem)
10501 5 => False), -- First_Subtype_Link (Node5-Sem)
10503 N_Implicit_Label_Declaration =>
10504 (1 => True, -- Defining_Identifier (Node1)
10505 2 => False, -- Label_Construct (Node2-Sem)
10506 3 => False, -- unused
10507 4 => False, -- unused
10508 5 => False), -- unused
10510 N_Itype_Reference =>
10511 (1 => False, -- Itype (Node1-Sem)
10512 2 => False, -- unused
10513 3 => False, -- unused
10514 4 => False, -- unused
10515 5 => False), -- unused
10517 N_Raise_Constraint_Error =>
10518 (1 => True, -- Condition (Node1)
10519 2 => False, -- unused
10520 3 => True, -- Reason (Uint3)
10521 4 => False, -- unused
10522 5 => False), -- Etype (Node5-Sem)
10524 N_Raise_Program_Error =>
10525 (1 => True, -- Condition (Node1)
10526 2 => False, -- unused
10527 3 => True, -- Reason (Uint3)
10528 4 => False, -- unused
10529 5 => False), -- Etype (Node5-Sem)
10531 N_Raise_Storage_Error =>
10532 (1 => True, -- Condition (Node1)
10533 2 => False, -- unused
10534 3 => True, -- Reason (Uint3)
10535 4 => False, -- unused
10536 5 => False), -- Etype (Node5-Sem)
10538 N_Push_Constraint_Error_Label =>
10539 (1 => False, -- unused
10540 2 => False, -- unused
10541 3 => False, -- unused
10542 4 => False, -- unused
10543 5 => False), -- unused
10545 N_Push_Program_Error_Label =>
10546 (1 => False, -- Exception_Label
10547 2 => False, -- unused
10548 3 => False, -- unused
10549 4 => False, -- unused
10550 5 => False), -- Exception_Label
10552 N_Push_Storage_Error_Label =>
10553 (1 => False, -- Exception_Label
10554 2 => False, -- unused
10555 3 => False, -- unused
10556 4 => False, -- unused
10557 5 => False), -- Exception_Label
10559 N_Pop_Constraint_Error_Label =>
10560 (1 => False, -- unused
10561 2 => False, -- unused
10562 3 => False, -- unused
10563 4 => False, -- unused
10564 5 => False), -- unused
10566 N_Pop_Program_Error_Label =>
10567 (1 => False, -- unused
10568 2 => False, -- unused
10569 3 => False, -- unused
10570 4 => False, -- unused
10571 5 => False), -- unused
10573 N_Pop_Storage_Error_Label =>
10574 (1 => False, -- unused
10575 2 => False, -- unused
10576 3 => False, -- unused
10577 4 => False, -- unused
10578 5 => False), -- unused
10581 (1 => False, -- unused
10582 2 => False, -- unused
10583 3 => True, -- Prefix (Node3)
10584 4 => False, -- unused
10585 5 => False), -- Etype (Node5-Sem)
10587 N_Subprogram_Info =>
10588 (1 => True, -- Identifier (Node1)
10589 2 => False, -- unused
10590 3 => False, -- unused
10591 4 => False, -- unused
10592 5 => False), -- Etype (Node5-Sem)
10594 N_Unchecked_Expression =>
10595 (1 => False, -- unused
10596 2 => False, -- unused
10597 3 => True, -- Expression (Node3)
10598 4 => False, -- unused
10599 5 => False), -- Etype (Node5-Sem)
10601 N_Unchecked_Type_Conversion =>
10602 (1 => False, -- unused
10603 2 => False, -- unused
10604 3 => True, -- Expression (Node3)
10605 4 => True, -- Subtype_Mark (Node4)
10606 5 => False), -- Etype (Node5-Sem)
10608 N_Validate_Unchecked_Conversion =>
10609 (1 => False, -- Source_Type (Node1-Sem)
10610 2 => False, -- Target_Type (Node2-Sem)
10611 3 => False, -- unused
10612 4 => False, -- unused
10613 5 => False), -- unused
10615 -- End of inserted output from makeisf program
10617 -- Entries for Empty, Error and Unused. Even thought these have a Chars
10618 -- field for debugging purposes, they are not really syntactic fields, so
10619 -- we mark all fields as unused.
10622 (1 => False, -- unused
10623 2 => False, -- unused
10624 3 => False, -- unused
10625 4 => False, -- unused
10626 5 => False), -- unused
10629 (1 => False, -- unused
10630 2 => False, -- unused
10631 3 => False, -- unused
10632 4 => False, -- unused
10633 5 => False), -- unused
10635 N_Unused_At_Start =>
10636 (1 => False, -- unused
10637 2 => False, -- unused
10638 3 => False, -- unused
10639 4 => False, -- unused
10640 5 => False), -- unused
10643 (1 => False, -- unused
10644 2 => False, -- unused
10645 3 => False, -- unused
10646 4 => False, -- unused
10647 5 => False)); -- unused
10649 --------------------
10650 -- Inline Pragmas --
10651 --------------------
10653 pragma Inline (ABE_Is_Certain);
10654 pragma Inline (Abort_Present);
10655 pragma Inline (Abortable_Part);
10656 pragma Inline (Abstract_Present);
10657 pragma Inline (Accept_Handler_Records);
10658 pragma Inline (Accept_Statement);
10659 pragma Inline (Access_Definition);
10660 pragma Inline (Access_To_Subprogram_Definition);
10661 pragma Inline (Access_Types_To_Process);
10662 pragma Inline (Actions);
10663 pragma Inline (Activation_Chain_Entity);
10664 pragma Inline (Acts_As_Spec);
10665 pragma Inline (Actual_Designated_Subtype);
10666 pragma Inline (Aggregate_Bounds);
10667 pragma Inline (Aliased_Present);
10668 pragma Inline (All_Others);
10669 pragma Inline (All_Present);
10670 pragma Inline (Alternatives);
10671 pragma Inline (Ancestor_Part);
10672 pragma Inline (Array_Aggregate);
10673 pragma Inline (Assignment_OK);
10674 pragma Inline (Associated_Node);
10675 pragma Inline (At_End_Proc);
10676 pragma Inline (Attribute_Name);
10677 pragma Inline (Aux_Decls_Node);
10678 pragma Inline (Backwards_OK);
10679 pragma Inline (Bad_Is_Detected);
10680 pragma Inline (Body_To_Inline);
10681 pragma Inline (Body_Required);
10682 pragma Inline (By_Ref);
10683 pragma Inline (Box_Present);
10684 pragma Inline (Char_Literal_Value);
10685 pragma Inline (Chars);
10686 pragma Inline (Check_Address_Alignment);
10687 pragma Inline (Choice_Parameter);
10688 pragma Inline (Choices);
10689 pragma Inline (Coextensions);
10690 pragma Inline (Comes_From_Extended_Return_Statement);
10691 pragma Inline (Compile_Time_Known_Aggregate);
10692 pragma Inline (Component_Associations);
10693 pragma Inline (Component_Clauses);
10694 pragma Inline (Component_Definition);
10695 pragma Inline (Component_Items);
10696 pragma Inline (Component_List);
10697 pragma Inline (Component_Name);
10698 pragma Inline (Condition);
10699 pragma Inline (Condition_Actions);
10700 pragma Inline (Config_Pragmas);
10701 pragma Inline (Constant_Present);
10702 pragma Inline (Constraint);
10703 pragma Inline (Constraints);
10704 pragma Inline (Context_Installed);
10705 pragma Inline (Context_Items);
10706 pragma Inline (Controlling_Argument);
10707 pragma Inline (Conversion_OK);
10708 pragma Inline (Corresponding_Body);
10709 pragma Inline (Corresponding_Formal_Spec);
10710 pragma Inline (Corresponding_Generic_Association);
10711 pragma Inline (Corresponding_Integer_Value);
10712 pragma Inline (Corresponding_Spec);
10713 pragma Inline (Corresponding_Stub);
10714 pragma Inline (Dcheck_Function);
10715 pragma Inline (Debug_Statement);
10716 pragma Inline (Declarations);
10717 pragma Inline (Default_Expression);
10718 pragma Inline (Default_Name);
10719 pragma Inline (Defining_Identifier);
10720 pragma Inline (Defining_Unit_Name);
10721 pragma Inline (Delay_Alternative);
10722 pragma Inline (Delay_Statement);
10723 pragma Inline (Delta_Expression);
10724 pragma Inline (Digits_Expression);
10725 pragma Inline (Discr_Check_Funcs_Built);
10726 pragma Inline (Discrete_Choices);
10727 pragma Inline (Discrete_Range);
10728 pragma Inline (Discrete_Subtype_Definition);
10729 pragma Inline (Discrete_Subtype_Definitions);
10730 pragma Inline (Discriminant_Specifications);
10731 pragma Inline (Discriminant_Type);
10732 pragma Inline (Do_Accessibility_Check);
10733 pragma Inline (Do_Discriminant_Check);
10734 pragma Inline (Do_Length_Check);
10735 pragma Inline (Do_Division_Check);
10736 pragma Inline (Do_Overflow_Check);
10737 pragma Inline (Do_Range_Check);
10738 pragma Inline (Do_Storage_Check);
10739 pragma Inline (Do_Tag_Check);
10740 pragma Inline (Elaborate_Present);
10741 pragma Inline (Elaborate_All_Desirable);
10742 pragma Inline (Elaborate_All_Present);
10743 pragma Inline (Elaborate_Desirable);
10744 pragma Inline (Elaboration_Boolean);
10745 pragma Inline (Else_Actions);
10746 pragma Inline (Else_Statements);
10747 pragma Inline (Elsif_Parts);
10748 pragma Inline (Enclosing_Variant);
10749 pragma Inline (End_Label);
10750 pragma Inline (End_Span);
10751 pragma Inline (Entity);
10752 pragma Inline (Entity_Or_Associated_Node);
10753 pragma Inline (Entry_Body_Formal_Part);
10754 pragma Inline (Entry_Call_Alternative);
10755 pragma Inline (Entry_Call_Statement);
10756 pragma Inline (Entry_Direct_Name);
10757 pragma Inline (Entry_Index);
10758 pragma Inline (Entry_Index_Specification);
10759 pragma Inline (Etype);
10760 pragma Inline (Exception_Choices);
10761 pragma Inline (Exception_Handlers);
10762 pragma Inline (Exception_Junk);
10763 pragma Inline (Exception_Label);
10764 pragma Inline (Expansion_Delayed);
10765 pragma Inline (Explicit_Actual_Parameter);
10766 pragma Inline (Explicit_Generic_Actual_Parameter);
10767 pragma Inline (Expression);
10768 pragma Inline (Expressions);
10769 pragma Inline (First_Bit);
10770 pragma Inline (First_Inlined_Subprogram);
10771 pragma Inline (First_Name);
10772 pragma Inline (First_Named_Actual);
10773 pragma Inline (First_Real_Statement);
10774 pragma Inline (First_Subtype_Link);
10775 pragma Inline (Float_Truncate);
10776 pragma Inline (Formal_Type_Definition);
10777 pragma Inline (Forwards_OK);
10778 pragma Inline (From_At_Mod);
10779 pragma Inline (From_Default);
10780 pragma Inline (Generic_Associations);
10781 pragma Inline (Generic_Formal_Declarations);
10782 pragma Inline (Generic_Parent);
10783 pragma Inline (Generic_Parent_Type);
10784 pragma Inline (Handled_Statement_Sequence);
10785 pragma Inline (Handler_List_Entry);
10786 pragma Inline (Has_Created_Identifier);
10787 pragma Inline (Has_Dynamic_Length_Check);
10788 pragma Inline (Has_Dynamic_Range_Check);
10789 pragma Inline (Has_Init_Expression);
10790 pragma Inline (Has_Local_Raise);
10791 pragma Inline (Has_Self_Reference);
10792 pragma Inline (Has_No_Elaboration_Code);
10793 pragma Inline (Has_Priority_Pragma);
10794 pragma Inline (Has_Private_View);
10795 pragma Inline (Has_Storage_Size_Pragma);
10796 pragma Inline (Has_Task_Info_Pragma);
10797 pragma Inline (Has_Task_Name_Pragma);
10798 pragma Inline (Has_Wide_Character);
10799 pragma Inline (Hidden_By_Use_Clause);
10800 pragma Inline (High_Bound);
10801 pragma Inline (Identifier);
10802 pragma Inline (Implicit_With);
10803 pragma Inline (Interface_List);
10804 pragma Inline (Interface_Present);
10805 pragma Inline (Includes_Infinities);
10806 pragma Inline (In_Present);
10807 pragma Inline (Instance_Spec);
10808 pragma Inline (Intval);
10809 pragma Inline (Is_Asynchronous_Call_Block);
10810 pragma Inline (Is_Coextension);
10811 pragma Inline (Is_Component_Left_Opnd);
10812 pragma Inline (Is_Component_Right_Opnd);
10813 pragma Inline (Is_Controlling_Actual);
10814 pragma Inline (Is_Entry_Barrier_Function);
10815 pragma Inline (Is_In_Discriminant_Check);
10816 pragma Inline (Is_Machine_Number);
10817 pragma Inline (Is_Null_Loop);
10818 pragma Inline (Is_Overloaded);
10819 pragma Inline (Is_Power_Of_2_For_Shift);
10820 pragma Inline (Is_Protected_Subprogram_Body);
10821 pragma Inline (Is_Static_Coextension);
10822 pragma Inline (Is_Static_Expression);
10823 pragma Inline (Is_Subprogram_Descriptor);
10824 pragma Inline (Is_Task_Allocation_Block);
10825 pragma Inline (Is_Task_Master);
10826 pragma Inline (Iteration_Scheme);
10827 pragma Inline (Itype);
10828 pragma Inline (Kill_Range_Check);
10829 pragma Inline (Last_Bit);
10830 pragma Inline (Last_Name);
10831 pragma Inline (Library_Unit);
10832 pragma Inline (Label_Construct);
10833 pragma Inline (Left_Opnd);
10834 pragma Inline (Limited_View_Installed);
10835 pragma Inline (Limited_Present);
10836 pragma Inline (Literals);
10837 pragma Inline (Local_Raise_Not_OK);
10838 pragma Inline (Local_Raise_Statements);
10839 pragma Inline (Loop_Actions);
10840 pragma Inline (Loop_Parameter_Specification);
10841 pragma Inline (Low_Bound);
10842 pragma Inline (Mod_Clause);
10843 pragma Inline (More_Ids);
10844 pragma Inline (Must_Be_Byte_Aligned);
10845 pragma Inline (Must_Not_Freeze);
10846 pragma Inline (Must_Not_Override);
10847 pragma Inline (Must_Override);
10848 pragma Inline (Name);
10849 pragma Inline (Names);
10850 pragma Inline (Next_Entity);
10851 pragma Inline (Next_Named_Actual);
10852 pragma Inline (Next_Rep_Item);
10853 pragma Inline (Next_Use_Clause);
10854 pragma Inline (No_Ctrl_Actions);
10855 pragma Inline (No_Elaboration_Check);
10856 pragma Inline (No_Entities_Ref_In_Spec);
10857 pragma Inline (No_Initialization);
10858 pragma Inline (No_Truncation);
10859 pragma Inline (Null_Present);
10860 pragma Inline (Null_Exclusion_Present);
10861 pragma Inline (Null_Record_Present);
10862 pragma Inline (Object_Definition);
10863 pragma Inline (Original_Discriminant);
10864 pragma Inline (Original_Entity);
10865 pragma Inline (Others_Discrete_Choices);
10866 pragma Inline (Out_Present);
10867 pragma Inline (Parameter_Associations);
10868 pragma Inline (Parameter_Specifications);
10869 pragma Inline (Parameter_List_Truncated);
10870 pragma Inline (Parameter_Type);
10871 pragma Inline (Parent_Spec);
10872 pragma Inline (Position);
10873 pragma Inline (Pragma_Argument_Associations);
10874 pragma Inline (Pragmas_After);
10875 pragma Inline (Pragmas_Before);
10876 pragma Inline (Prefix);
10877 pragma Inline (Present_Expr);
10878 pragma Inline (Prev_Ids);
10879 pragma Inline (Print_In_Hex);
10880 pragma Inline (Private_Declarations);
10881 pragma Inline (Private_Present);
10882 pragma Inline (Procedure_To_Call);
10883 pragma Inline (Proper_Body);
10884 pragma Inline (Protected_Definition);
10885 pragma Inline (Protected_Present);
10886 pragma Inline (Raises_Constraint_Error);
10887 pragma Inline (Range_Constraint);
10888 pragma Inline (Range_Expression);
10889 pragma Inline (Real_Range_Specification);
10890 pragma Inline (Realval);
10891 pragma Inline (Reason);
10892 pragma Inline (Record_Extension_Part);
10893 pragma Inline (Redundant_Use);
10894 pragma Inline (Renaming_Exception);
10895 pragma Inline (Result_Definition);
10896 pragma Inline (Return_Object_Declarations);
10897 pragma Inline (Return_Statement_Entity);
10898 pragma Inline (Reverse_Present);
10899 pragma Inline (Right_Opnd);
10900 pragma Inline (Rounded_Result);
10901 pragma Inline (Scope);
10902 pragma Inline (Select_Alternatives);
10903 pragma Inline (Selector_Name);
10904 pragma Inline (Selector_Names);
10905 pragma Inline (Shift_Count_OK);
10906 pragma Inline (Source_Type);
10907 pragma Inline (Specification);
10908 pragma Inline (Statements);
10909 pragma Inline (Static_Processing_OK);
10910 pragma Inline (Storage_Pool);
10911 pragma Inline (Strval);
10912 pragma Inline (Subtype_Indication);
10913 pragma Inline (Subtype_Mark);
10914 pragma Inline (Subtype_Marks);
10915 pragma Inline (Synchronized_Present);
10916 pragma Inline (Tagged_Present);
10917 pragma Inline (Target_Type);
10918 pragma Inline (Task_Definition);
10919 pragma Inline (Task_Present);
10920 pragma Inline (Then_Actions);
10921 pragma Inline (Then_Statements);
10922 pragma Inline (Triggering_Alternative);
10923 pragma Inline (Triggering_Statement);
10924 pragma Inline (Treat_Fixed_As_Integer);
10925 pragma Inline (TSS_Elist);
10926 pragma Inline (Type_Definition);
10927 pragma Inline (Unit);
10928 pragma Inline (Unknown_Discriminants_Present);
10929 pragma Inline (Unreferenced_In_Spec);
10930 pragma Inline (Variant_Part);
10931 pragma Inline (Variants);
10932 pragma Inline (Visible_Declarations);
10933 pragma Inline (Was_Originally_Stub);
10934 pragma Inline (Zero_Cost_Handling);
10936 pragma Inline (Set_ABE_Is_Certain);
10937 pragma Inline (Set_Abort_Present);
10938 pragma Inline (Set_Abortable_Part);
10939 pragma Inline (Set_Abstract_Present);
10940 pragma Inline (Set_Accept_Handler_Records);
10941 pragma Inline (Set_Accept_Statement);
10942 pragma Inline (Set_Access_Definition);
10943 pragma Inline (Set_Access_To_Subprogram_Definition);
10944 pragma Inline (Set_Access_Types_To_Process);
10945 pragma Inline (Set_Actions);
10946 pragma Inline (Set_Activation_Chain_Entity);
10947 pragma Inline (Set_Acts_As_Spec);
10948 pragma Inline (Set_Actual_Designated_Subtype);
10949 pragma Inline (Set_Aggregate_Bounds);
10950 pragma Inline (Set_Aliased_Present);
10951 pragma Inline (Set_All_Others);
10952 pragma Inline (Set_All_Present);
10953 pragma Inline (Set_Alternatives);
10954 pragma Inline (Set_Ancestor_Part);
10955 pragma Inline (Set_Array_Aggregate);
10956 pragma Inline (Set_Assignment_OK);
10957 pragma Inline (Set_Associated_Node);
10958 pragma Inline (Set_At_End_Proc);
10959 pragma Inline (Set_Attribute_Name);
10960 pragma Inline (Set_Aux_Decls_Node);
10961 pragma Inline (Set_Backwards_OK);
10962 pragma Inline (Set_Bad_Is_Detected);
10963 pragma Inline (Set_Body_To_Inline);
10964 pragma Inline (Set_Body_Required);
10965 pragma Inline (Set_By_Ref);
10966 pragma Inline (Set_Box_Present);
10967 pragma Inline (Set_Char_Literal_Value);
10968 pragma Inline (Set_Chars);
10969 pragma Inline (Set_Check_Address_Alignment);
10970 pragma Inline (Set_Choice_Parameter);
10971 pragma Inline (Set_Choices);
10972 pragma Inline (Set_Coextensions);
10973 pragma Inline (Set_Comes_From_Extended_Return_Statement);
10974 pragma Inline (Set_Compile_Time_Known_Aggregate);
10975 pragma Inline (Set_Component_Associations);
10976 pragma Inline (Set_Component_Clauses);
10977 pragma Inline (Set_Component_Definition);
10978 pragma Inline (Set_Component_Items);
10979 pragma Inline (Set_Component_List);
10980 pragma Inline (Set_Component_Name);
10981 pragma Inline (Set_Condition);
10982 pragma Inline (Set_Condition_Actions);
10983 pragma Inline (Set_Config_Pragmas);
10984 pragma Inline (Set_Constant_Present);
10985 pragma Inline (Set_Constraint);
10986 pragma Inline (Set_Constraints);
10987 pragma Inline (Set_Context_Installed);
10988 pragma Inline (Set_Context_Items);
10989 pragma Inline (Set_Controlling_Argument);
10990 pragma Inline (Set_Conversion_OK);
10991 pragma Inline (Set_Corresponding_Body);
10992 pragma Inline (Set_Corresponding_Formal_Spec);
10993 pragma Inline (Set_Corresponding_Generic_Association);
10994 pragma Inline (Set_Corresponding_Integer_Value);
10995 pragma Inline (Set_Corresponding_Spec);
10996 pragma Inline (Set_Corresponding_Stub);
10997 pragma Inline (Set_Dcheck_Function);
10998 pragma Inline (Set_Debug_Statement);
10999 pragma Inline (Set_Declarations);
11000 pragma Inline (Set_Default_Expression);
11001 pragma Inline (Set_Default_Name);
11002 pragma Inline (Set_Defining_Identifier);
11003 pragma Inline (Set_Defining_Unit_Name);
11004 pragma Inline (Set_Delay_Alternative);
11005 pragma Inline (Set_Delay_Statement);
11006 pragma Inline (Set_Delta_Expression);
11007 pragma Inline (Set_Digits_Expression);
11008 pragma Inline (Set_Discr_Check_Funcs_Built);
11009 pragma Inline (Set_Discrete_Choices);
11010 pragma Inline (Set_Discrete_Range);
11011 pragma Inline (Set_Discrete_Subtype_Definition);
11012 pragma Inline (Set_Discrete_Subtype_Definitions);
11013 pragma Inline (Set_Discriminant_Specifications);
11014 pragma Inline (Set_Discriminant_Type);
11015 pragma Inline (Set_Do_Accessibility_Check);
11016 pragma Inline (Set_Do_Discriminant_Check);
11017 pragma Inline (Set_Do_Length_Check);
11018 pragma Inline (Set_Do_Division_Check);
11019 pragma Inline (Set_Do_Overflow_Check);
11020 pragma Inline (Set_Do_Range_Check);
11021 pragma Inline (Set_Do_Storage_Check);
11022 pragma Inline (Set_Do_Tag_Check);
11023 pragma Inline (Set_Elaborate_Present);
11024 pragma Inline (Set_Elaborate_All_Desirable);
11025 pragma Inline (Set_Elaborate_All_Present);
11026 pragma Inline (Set_Elaborate_Desirable);
11027 pragma Inline (Set_Elaboration_Boolean);
11028 pragma Inline (Set_Else_Actions);
11029 pragma Inline (Set_Else_Statements);
11030 pragma Inline (Set_Elsif_Parts);
11031 pragma Inline (Set_Enclosing_Variant);
11032 pragma Inline (Set_End_Label);
11033 pragma Inline (Set_End_Span);
11034 pragma Inline (Set_Entity);
11035 pragma Inline (Set_Entry_Body_Formal_Part);
11036 pragma Inline (Set_Entry_Call_Alternative);
11037 pragma Inline (Set_Entry_Call_Statement);
11038 pragma Inline (Set_Entry_Direct_Name);
11039 pragma Inline (Set_Entry_Index);
11040 pragma Inline (Set_Entry_Index_Specification);
11041 pragma Inline (Set_Etype);
11042 pragma Inline (Set_Exception_Choices);
11043 pragma Inline (Set_Exception_Handlers);
11044 pragma Inline (Set_Exception_Junk);
11045 pragma Inline (Set_Exception_Label);
11046 pragma Inline (Set_Expansion_Delayed);
11047 pragma Inline (Set_Explicit_Actual_Parameter);
11048 pragma Inline (Set_Explicit_Generic_Actual_Parameter);
11049 pragma Inline (Set_Expression);
11050 pragma Inline (Set_Expressions);
11051 pragma Inline (Set_First_Bit);
11052 pragma Inline (Set_First_Inlined_Subprogram);
11053 pragma Inline (Set_First_Name);
11054 pragma Inline (Set_First_Named_Actual);
11055 pragma Inline (Set_First_Real_Statement);
11056 pragma Inline (Set_First_Subtype_Link);
11057 pragma Inline (Set_Float_Truncate);
11058 pragma Inline (Set_Formal_Type_Definition);
11059 pragma Inline (Set_Forwards_OK);
11060 pragma Inline (Set_From_At_Mod);
11061 pragma Inline (Set_From_Default);
11062 pragma Inline (Set_Generic_Associations);
11063 pragma Inline (Set_Generic_Formal_Declarations);
11064 pragma Inline (Set_Generic_Parent);
11065 pragma Inline (Set_Generic_Parent_Type);
11066 pragma Inline (Set_Handled_Statement_Sequence);
11067 pragma Inline (Set_Handler_List_Entry);
11068 pragma Inline (Set_Has_Created_Identifier);
11069 pragma Inline (Set_Has_Dynamic_Length_Check);
11070 pragma Inline (Set_Has_Init_Expression);
11071 pragma Inline (Set_Has_Local_Raise);
11072 pragma Inline (Set_Has_Dynamic_Range_Check);
11073 pragma Inline (Set_Has_No_Elaboration_Code);
11074 pragma Inline (Set_Has_Priority_Pragma);
11075 pragma Inline (Set_Has_Private_View);
11076 pragma Inline (Set_Has_Storage_Size_Pragma);
11077 pragma Inline (Set_Has_Task_Info_Pragma);
11078 pragma Inline (Set_Has_Task_Name_Pragma);
11079 pragma Inline (Set_Has_Wide_Character);
11080 pragma Inline (Set_Hidden_By_Use_Clause);
11081 pragma Inline (Set_High_Bound);
11082 pragma Inline (Set_Identifier);
11083 pragma Inline (Set_Implicit_With);
11084 pragma Inline (Set_Includes_Infinities);
11085 pragma Inline (Set_Interface_List);
11086 pragma Inline (Set_Interface_Present);
11087 pragma Inline (Set_In_Present);
11088 pragma Inline (Set_Instance_Spec);
11089 pragma Inline (Set_Intval);
11090 pragma Inline (Set_Is_Asynchronous_Call_Block);
11091 pragma Inline (Set_Is_Coextension);
11092 pragma Inline (Set_Is_Component_Left_Opnd);
11093 pragma Inline (Set_Is_Component_Right_Opnd);
11094 pragma Inline (Set_Is_Controlling_Actual);
11095 pragma Inline (Set_Is_Entry_Barrier_Function);
11096 pragma Inline (Set_Is_In_Discriminant_Check);
11097 pragma Inline (Set_Is_Machine_Number);
11098 pragma Inline (Set_Is_Null_Loop);
11099 pragma Inline (Set_Is_Overloaded);
11100 pragma Inline (Set_Is_Power_Of_2_For_Shift);
11101 pragma Inline (Set_Is_Protected_Subprogram_Body);
11102 pragma Inline (Set_Has_Self_Reference);
11103 pragma Inline (Set_Is_Static_Coextension);
11104 pragma Inline (Set_Is_Static_Expression);
11105 pragma Inline (Set_Is_Subprogram_Descriptor);
11106 pragma Inline (Set_Is_Task_Allocation_Block);
11107 pragma Inline (Set_Is_Task_Master);
11108 pragma Inline (Set_Iteration_Scheme);
11109 pragma Inline (Set_Itype);
11110 pragma Inline (Set_Kill_Range_Check);
11111 pragma Inline (Set_Last_Bit);
11112 pragma Inline (Set_Last_Name);
11113 pragma Inline (Set_Library_Unit);
11114 pragma Inline (Set_Label_Construct);
11115 pragma Inline (Set_Left_Opnd);
11116 pragma Inline (Set_Limited_View_Installed);
11117 pragma Inline (Set_Limited_Present);
11118 pragma Inline (Set_Literals);
11119 pragma Inline (Set_Local_Raise_Not_OK);
11120 pragma Inline (Set_Local_Raise_Statements);
11121 pragma Inline (Set_Loop_Actions);
11122 pragma Inline (Set_Loop_Parameter_Specification);
11123 pragma Inline (Set_Low_Bound);
11124 pragma Inline (Set_Mod_Clause);
11125 pragma Inline (Set_More_Ids);
11126 pragma Inline (Set_Must_Be_Byte_Aligned);
11127 pragma Inline (Set_Must_Not_Freeze);
11128 pragma Inline (Set_Must_Not_Override);
11129 pragma Inline (Set_Must_Override);
11130 pragma Inline (Set_Name);
11131 pragma Inline (Set_Names);
11132 pragma Inline (Set_Next_Entity);
11133 pragma Inline (Set_Next_Named_Actual);
11134 pragma Inline (Set_Next_Use_Clause);
11135 pragma Inline (Set_No_Ctrl_Actions);
11136 pragma Inline (Set_No_Elaboration_Check);
11137 pragma Inline (Set_No_Entities_Ref_In_Spec);
11138 pragma Inline (Set_No_Initialization);
11139 pragma Inline (Set_No_Truncation);
11140 pragma Inline (Set_Null_Present);
11141 pragma Inline (Set_Null_Exclusion_Present);
11142 pragma Inline (Set_Null_Record_Present);
11143 pragma Inline (Set_Object_Definition);
11144 pragma Inline (Set_Original_Discriminant);
11145 pragma Inline (Set_Original_Entity);
11146 pragma Inline (Set_Others_Discrete_Choices);
11147 pragma Inline (Set_Out_Present);
11148 pragma Inline (Set_Parameter_Associations);
11149 pragma Inline (Set_Parameter_Specifications);
11150 pragma Inline (Set_Parameter_List_Truncated);
11151 pragma Inline (Set_Parameter_Type);
11152 pragma Inline (Set_Parent_Spec);
11153 pragma Inline (Set_Position);
11154 pragma Inline (Set_Pragma_Argument_Associations);
11155 pragma Inline (Set_Pragmas_After);
11156 pragma Inline (Set_Pragmas_Before);
11157 pragma Inline (Set_Prefix);
11158 pragma Inline (Set_Present_Expr);
11159 pragma Inline (Set_Prev_Ids);
11160 pragma Inline (Set_Print_In_Hex);
11161 pragma Inline (Set_Private_Declarations);
11162 pragma Inline (Set_Private_Present);
11163 pragma Inline (Set_Procedure_To_Call);
11164 pragma Inline (Set_Proper_Body);
11165 pragma Inline (Set_Protected_Definition);
11166 pragma Inline (Set_Protected_Present);
11167 pragma Inline (Set_Raises_Constraint_Error);
11168 pragma Inline (Set_Range_Constraint);
11169 pragma Inline (Set_Range_Expression);
11170 pragma Inline (Set_Real_Range_Specification);
11171 pragma Inline (Set_Realval);
11172 pragma Inline (Set_Reason);
11173 pragma Inline (Set_Record_Extension_Part);
11174 pragma Inline (Set_Redundant_Use);
11175 pragma Inline (Set_Renaming_Exception);
11176 pragma Inline (Set_Result_Definition);
11177 pragma Inline (Set_Return_Object_Declarations);
11178 pragma Inline (Set_Reverse_Present);
11179 pragma Inline (Set_Right_Opnd);
11180 pragma Inline (Set_Rounded_Result);
11181 pragma Inline (Set_Scope);
11182 pragma Inline (Set_Select_Alternatives);
11183 pragma Inline (Set_Selector_Name);
11184 pragma Inline (Set_Selector_Names);
11185 pragma Inline (Set_Shift_Count_OK);
11186 pragma Inline (Set_Source_Type);
11187 pragma Inline (Set_Specification);
11188 pragma Inline (Set_Statements);
11189 pragma Inline (Set_Static_Processing_OK);
11190 pragma Inline (Set_Storage_Pool);
11191 pragma Inline (Set_Strval);
11192 pragma Inline (Set_Subtype_Indication);
11193 pragma Inline (Set_Subtype_Mark);
11194 pragma Inline (Set_Subtype_Marks);
11195 pragma Inline (Set_Synchronized_Present);
11196 pragma Inline (Set_Tagged_Present);
11197 pragma Inline (Set_Target_Type);
11198 pragma Inline (Set_Task_Definition);
11199 pragma Inline (Set_Task_Present);
11200 pragma Inline (Set_Then_Actions);
11201 pragma Inline (Set_Then_Statements);
11202 pragma Inline (Set_Triggering_Alternative);
11203 pragma Inline (Set_Triggering_Statement);
11204 pragma Inline (Set_Treat_Fixed_As_Integer);
11205 pragma Inline (Set_TSS_Elist);
11206 pragma Inline (Set_Type_Definition);
11207 pragma Inline (Set_Unit);
11208 pragma Inline (Set_Unknown_Discriminants_Present);
11209 pragma Inline (Set_Unreferenced_In_Spec);
11210 pragma Inline (Set_Variant_Part);
11211 pragma Inline (Set_Variants);
11212 pragma Inline (Set_Visible_Declarations);
11213 pragma Inline (Set_Was_Originally_Stub);
11214 pragma Inline (Set_Zero_Cost_Handling);
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