-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2004, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- Public License distributed with GNAT; see file COPYING3. If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
with Atree; use Atree;
with Casing; use Casing;
+with Checks; use Checks;
with Csets; use Csets;
with Debug; use Debug;
with Einfo; use Einfo;
-with Elists; use Elists;
with Errout; use Errout;
-with Expander; use Expander;
with Exp_Dist; use Exp_Dist;
-with Fname; use Fname;
-with Hostparm; use Hostparm;
with Lib; use Lib;
with Lib.Writ; use Lib.Writ;
with Lib.Xref; use Lib.Xref;
-with Namet; use Namet;
+with Namet.Sp; use Namet.Sp;
with Nlists; use Nlists;
with Nmake; use Nmake;
with Opt; use Opt;
with Rident; use Rident;
with Rtsfind; use Rtsfind;
with Sem; use Sem;
+with Sem_Aux; use Sem_Aux;
with Sem_Ch3; use Sem_Ch3;
+with Sem_Ch6; use Sem_Ch6;
with Sem_Ch8; use Sem_Ch8;
+with Sem_Ch12; use Sem_Ch12;
with Sem_Ch13; use Sem_Ch13;
-with Sem_Disp; use Sem_Disp;
+with Sem_Dist; use Sem_Dist;
with Sem_Elim; use Sem_Elim;
with Sem_Eval; use Sem_Eval;
with Sem_Intr; use Sem_Intr;
with Sem_Type; use Sem_Type;
with Sem_Util; use Sem_Util;
with Sem_VFpt; use Sem_VFpt;
+with Sem_Warn; use Sem_Warn;
with Stand; use Stand;
with Sinfo; use Sinfo;
with Sinfo.CN; use Sinfo.CN;
with Snames; use Snames;
with Stringt; use Stringt;
with Stylesw; use Stylesw;
+with Table;
with Targparm; use Targparm;
with Tbuild; use Tbuild;
with Ttypes;
with Uintp; use Uintp;
+with Uname; use Uname;
with Urealp; use Urealp;
with Validsw; use Validsw;
-with GNAT.Spelling_Checker; use GNAT.Spelling_Checker;
-
package body Sem_Prag is
----------------------------------------------
-- form and processing:
-- pragma Export_xxx
- -- [Internal =>] LOCAL_NAME,
+ -- [Internal =>] LOCAL_NAME
-- [, [External =>] EXTERNAL_SYMBOL]
-- [, other optional parameters ]);
-- pragma Import_xxx
- -- [Internal =>] LOCAL_NAME,
+ -- [Internal =>] LOCAL_NAME
-- [, [External =>] EXTERNAL_SYMBOL]
-- [, other optional parameters ]);
-- design and implementation and are intended to be fully compatible
-- with the use of these pragmas in the DEC Ada compiler.
+ --------------------------------------------
+ -- Checking for Duplicated External Names --
+ --------------------------------------------
+
+ -- It is suspicious if two separate Export pragmas use the same external
+ -- name. The following table is used to diagnose this situation so that
+ -- an appropriate warning can be issued.
+
+ -- The Node_Id stored is for the N_String_Literal node created to
+ -- hold the value of the external name. The Sloc of this node is
+ -- used to cross-reference the location of the duplication.
+
+ package Externals is new Table.Table (
+ Table_Component_Type => Node_Id,
+ Table_Index_Type => Int,
+ Table_Low_Bound => 0,
+ Table_Initial => 100,
+ Table_Increment => 100,
+ Table_Name => "Name_Externals");
+
-------------------------------------
-- Local Subprograms and Variables --
-------------------------------------
-- (the original one, following the renaming chain) is returned.
-- Otherwise the entity is returned unchanged. Should be in Einfo???
+ function Get_Pragma_Arg (Arg : Node_Id) return Node_Id;
+ -- All the routines that check pragma arguments take either a pragma
+ -- argument association (in which case the expression of the argument
+ -- association is checked), or the expression directly. The function
+ -- Get_Pragma_Arg is a utility used to deal with these two cases. If Arg
+ -- is a pragma argument association node, then its expression is returned,
+ -- otherwise Arg is returned unchanged.
+
+ procedure rv;
+ -- This is a dummy function called by the processing for pragma Reviewable.
+ -- It is there for assisting front end debugging. By placing a Reviewable
+ -- pragma in the source program, a breakpoint on rv catches this place in
+ -- the source, allowing convenient stepping to the point of interest.
+
procedure Set_Unit_Name (N : Node_Id; With_Item : Node_Id);
-- Place semantic information on the argument of an Elaborate or
-- Elaborate_All pragma. Entity name for unit and its parents is
end if;
end Adjust_External_Name_Case;
+ ------------------------------
+ -- Analyze_PPC_In_Decl_Part --
+ ------------------------------
+
+ procedure Analyze_PPC_In_Decl_Part (N : Node_Id; S : Entity_Id) is
+ Arg1 : constant Node_Id :=
+ First (Pragma_Argument_Associations (N));
+ Arg2 : constant Node_Id := Next (Arg1);
+
+ begin
+ -- Install formals and push subprogram spec onto scope stack
+ -- so that we can see the formals from the pragma.
+
+ Install_Formals (S);
+ Push_Scope (S);
+
+ -- Preanalyze the boolean expression, we treat this as a
+ -- spec expression (i.e. similar to a default expression).
+
+ Preanalyze_Spec_Expression
+ (Get_Pragma_Arg (Arg1), Standard_Boolean);
+
+ -- If there is a message argument, analyze it the same way
+
+ if Present (Arg2) then
+ Preanalyze_Spec_Expression
+ (Get_Pragma_Arg (Arg2), Standard_String);
+ end if;
+
+ -- Remove the subprogram from the scope stack now that the
+ -- pre-analysis of the precondition/postcondition is done.
+
+ End_Scope;
+ end Analyze_PPC_In_Decl_Part;
+
--------------------
-- Analyze_Pragma --
--------------------
procedure Analyze_Pragma (N : Node_Id) is
Loc : constant Source_Ptr := Sloc (N);
+ Pname : constant Name_Id := Pragma_Name (N);
Prag_Id : Pragma_Id;
Pragma_Exit : exception;
-- This exception is used to exit pragma processing completely. It
- -- is used when an error is detected, and in other situations where
- -- it is known that no further processing is required.
+ -- is used when an error is detected, and no further processing is
+ -- required. It is also used if an earlier error has left the tree
+ -- in a state where the pragma should not be processed.
Arg_Count : Nat;
-- Number of pragma argument associations
-- First four pragma arguments (pragma argument association nodes,
-- or Empty if the corresponding argument does not exist).
+ type Name_List is array (Natural range <>) of Name_Id;
+ type Args_List is array (Natural range <>) of Node_Id;
+ -- Types used for arguments to Check_Arg_Order and Gather_Associations
+
+ procedure Ada_2005_Pragma;
+ -- Called for pragmas defined in Ada 2005, that are not in Ada 95. In
+ -- Ada 95 mode, these are implementation defined pragmas, so should be
+ -- caught by the No_Implementation_Pragmas restriction
+
procedure Check_Ada_83_Warning;
-- Issues a warning message for the current pragma if operating in Ada
-- 83 mode (used for language pragmas that are not a standard part of
-- in which case the check is applied to the expression of the
-- association or an expression directly.
+ procedure Check_Arg_Is_External_Name (Arg : Node_Id);
+ -- Check that an argument has the right form for an EXTERNAL_NAME
+ -- parameter of an extended import/export pragma. The rule is that
+ -- the name must be an identifier or string literal (in Ada 83 mode)
+ -- or a static string expression (in Ada 95 mode).
+
procedure Check_Arg_Is_Identifier (Arg : Node_Id);
-- Check the specified argument Arg to make sure that it is an
-- identifier. If not give error and raise Pragma_Exit.
procedure Check_Arg_Is_One_Of (Arg : Node_Id; N1, N2 : Name_Id);
procedure Check_Arg_Is_One_Of (Arg : Node_Id; N1, N2, N3 : Name_Id);
+ procedure Check_Arg_Is_One_Of (Arg : Node_Id; N1, N2, N3, N4 : Name_Id);
-- Check the specified argument Arg to make sure that it is an
-- identifier whose name matches either N1 or N2 (or N3 if present).
-- If not then give error and raise Pragma_Exit.
-- valid task dispatching policy name. If not give error and raise
-- Pragma_Exit.
+ procedure Check_Arg_Order (Names : Name_List);
+ -- Checks for an instance of two arguments with identifiers for the
+ -- current pragma which are not in the sequence indicated by Names,
+ -- and if so, generates a fatal message about bad order of arguments.
+
procedure Check_At_Least_N_Arguments (N : Nat);
-- Check there are at least N arguments present
procedure Check_At_Most_N_Arguments (N : Nat);
-- Check there are no more than N arguments present
+ procedure Check_Component (Comp : Node_Id);
+ -- Examine Unchecked_Union component for correct use of per-object
+ -- constrained subtypes, and for restrictions on finalizable components.
+
+ procedure Check_Duplicated_Export_Name (Nam : Node_Id);
+ -- Nam is an N_String_Literal node containing the external name set
+ -- by an Import or Export pragma (or extended Import or Export pragma).
+ -- This procedure checks for possible duplications if this is the
+ -- export case, and if found, issues an appropriate error message.
+
procedure Check_First_Subtype (Arg : Node_Id);
-- Checks that Arg, whose expression is an entity name referencing
-- a subtype, does not reference a type that is not a first subtype.
procedure Check_In_Main_Program;
-- Common checks for pragmas that appear within a main program
- -- (Priority, Main_Storage, Time_Slice).
+ -- (Priority, Main_Storage, Time_Slice, Relative_Deadline).
procedure Check_Interrupt_Or_Attach_Handler;
-- Common processing for first argument of pragma Interrupt_Handler
-- In this version of the procedure, the identifier name is given as
-- a string with lower case letters.
+ procedure Check_Precondition_Postcondition (In_Body : out Boolean);
+ -- Called to process a precondition or postcondition pragma. There are
+ -- three cases:
+ --
+ -- The pragma appears after a subprogram spec
+ --
+ -- If the corresponding check is not enabled, the pragma is analyzed
+ -- but otherwise ignored and control returns with In_Body set False.
+ --
+ -- If the check is enabled, then the first step is to analyze the
+ -- pragma, but this is skipped if the subprogram spec appears within
+ -- a package specification (because this is the case where we delay
+ -- analysis till the end of the spec). Then (whether or not it was
+ -- analyzed), the pragma is chained to the subprogram in question
+ -- (using Spec_PPC_List and Next_Pragma) and control returns to the
+ -- caller with In_Body set False.
+ --
+ -- The pragma appears at the start of subprogram body declarations
+ --
+ -- In this case an immediate return to the caller is made with
+ -- In_Body set True, and the pragma is NOT analyzed.
+ --
+ -- In all other cases, an error message for bad placement is given
+
procedure Check_Static_Constraint (Constr : Node_Id);
-- Constr is a constraint from an N_Subtype_Indication node from a
-- component constraint in an Unchecked_Union type. This routine checks
-- and to library level instantiations), and they are simply ignored,
-- which is implemented by rewriting them as null statements.
+ procedure Check_Variant (Variant : Node_Id);
+ -- Check Unchecked_Union variant for lack of nested variants and
+ -- presence of at least one component.
+
procedure Error_Pragma (Msg : String);
pragma No_Return (Error_Pragma);
- -- Outputs error message for current pragma. The message contains an %
+ -- Outputs error message for current pragma. The message contains a %
-- that will be replaced with the pragma name, and the flag is placed
-- on the pragma itself. Pragma_Exit is then raised.
-- reference the identifier. After placing the message, Pragma_Exit
-- is raised.
+ procedure Error_Pragma_Ref (Msg : String; Ref : Entity_Id);
+ pragma No_Return (Error_Pragma_Ref);
+ -- Outputs error message for current pragma. The message may contain
+ -- a % that will be replaced with the pragma name. The parameter Ref
+ -- must be an entity whose name can be referenced by & and sloc by #.
+ -- After placing the message, Pragma_Exit is raised.
+
function Find_Lib_Unit_Name return Entity_Id;
-- Used for a library unit pragma to find the entity to which the
-- library unit pragma applies, returns the entity found.
-- unit pragma that is not a compilation unit pragma, then the
-- identifier must be visible.
- type Name_List is array (Natural range <>) of Name_Id;
- type Args_List is array (Natural range <>) of Node_Id;
+ function Find_Unique_Parameterless_Procedure
+ (Name : Entity_Id;
+ Arg : Node_Id) return Entity_Id;
+ -- Used for a procedure pragma to find the unique parameterless
+ -- procedure identified by Name, returns it if it exists, otherwise
+ -- errors out and uses Arg as the pragma argument for the message.
+
procedure Gather_Associations
(Names : Name_List;
Args : out Args_List);
-- optional identifiers when it returns). An entry in Args is Empty
-- on return if the corresponding argument is not present.
- function Get_Pragma_Arg (Arg : Node_Id) return Node_Id;
- -- All the routines that check pragma arguments take either a pragma
- -- argument association (in which case the expression of the argument
- -- association is checked), or the expression directly. The function
- -- Get_Pragma_Arg is a utility used to deal with these two cases. If
- -- Arg is a pragma argument association node, then its expression is
- -- returned, otherwise Arg is returned unchanged.
-
procedure GNAT_Pragma;
- -- Called for all GNAT defined pragmas to note the use of the feature,
- -- and also check the relevant restriction (No_Implementation_Pragmas).
+ -- Called for all GNAT defined pragmas to check the relevant restriction
+ -- (No_Implementation_Pragmas).
function Is_Before_First_Decl
(Pragma_Node : Node_Id;
-- Decls where Decls is the list of declarative items.
function Is_Configuration_Pragma return Boolean;
- -- Deterermines if the placement of the current pragma is appropriate
- -- for a configuration pragma (precedes the current compilation unit)
+ -- Determines if the placement of the current pragma is appropriate
+ -- for a configuration pragma.
+
+ function Is_In_Context_Clause return Boolean;
+ -- Returns True if pragma appears within the context clause of a unit,
+ -- and False for any other placement (does not generate any messages).
+
+ function Is_Static_String_Expression (Arg : Node_Id) return Boolean;
+ -- Analyzes the argument, and determines if it is a static string
+ -- expression, returns True if so, False if non-static or not String.
procedure Pragma_Misplaced;
+ pragma No_Return (Pragma_Misplaced);
-- Issue fatal error message for misplaced pragma
procedure Process_Atomic_Shared_Volatile;
-- Shared is an obsolete Ada 83 pragma, treated as being identical
-- in effect to pragma Atomic.
+ procedure Process_Compile_Time_Warning_Or_Error;
+ -- Common processing for Compile_Time_Error and Compile_Time_Warning
+
procedure Process_Convention (C : out Convention_Id; E : out Entity_Id);
- -- Common procesing for Convention, Interface, Import and Export.
+ -- Common processing for Convention, Interface, Import and Export.
-- Checks first two arguments of pragma, and sets the appropriate
-- convention value in the specified entity or entities. On return
-- C is the convention, E is the referenced entity.
(Arg_Internal : Node_Id;
Arg_External : Node_Id;
Arg_Size : Node_Id);
- -- Common processing for the pragmass Import/Export_Object.
+ -- Common processing for the pragmas Import/Export_Object.
-- The three arguments correspond to the three named parameters
-- of the pragmas. An argument is empty if the corresponding
-- parameter is not present in the pragma.
Arg_First_Optional_Parameter : Node_Id := Empty);
-- Common processing for all extended Import and Export pragmas
-- applying to subprograms. The caller omits any arguments that do
- -- bnot apply to the pragma in question (for example, Arg_Result_Type
+ -- not apply to the pragma in question (for example, Arg_Result_Type
-- can be non-Empty only in the Import_Function and Export_Function
-- cases). The argument names correspond to the allowed pragma
-- association identifiers.
procedure Process_Interrupt_Or_Attach_Handler;
-- Common processing for Interrupt and Attach_Handler pragmas
- procedure Process_Restrictions_Or_Restriction_Warnings;
- -- Common processing for Restrictions and Restriction_Warnings pragmas
+ procedure Process_Restrictions_Or_Restriction_Warnings (Warn : Boolean);
+ -- Common processing for Restrictions and Restriction_Warnings pragmas.
+ -- Warn is True for Restriction_Warnings, or for Restrictions if the
+ -- flag Treat_Restrictions_As_Warnings is set, and False if this flag
+ -- is not set in the Restrictions case.
procedure Process_Suppress_Unsuppress (Suppress_Case : Boolean);
-- Common processing for Suppress and Unsuppress. The boolean parameter
-- node, which is used for error messages on any constructs
-- that violate the profile.
+ ---------------------
+ -- Ada_2005_Pragma --
+ ---------------------
+
+ procedure Ada_2005_Pragma is
+ begin
+ if Ada_Version <= Ada_95 then
+ Check_Restriction (No_Implementation_Pragmas, N);
+ end if;
+ end Ada_2005_Pragma;
+
--------------------------
-- Check_Ada_83_Warning --
--------------------------
end if;
end Check_Arg_Count;
+ --------------------------------
+ -- Check_Arg_Is_External_Name --
+ --------------------------------
+
+ procedure Check_Arg_Is_External_Name (Arg : Node_Id) is
+ Argx : constant Node_Id := Get_Pragma_Arg (Arg);
+
+ begin
+ if Nkind (Argx) = N_Identifier then
+ return;
+
+ else
+ Analyze_And_Resolve (Argx, Standard_String);
+
+ if Is_OK_Static_Expression (Argx) then
+ return;
+
+ elsif Etype (Argx) = Any_Type then
+ raise Pragma_Exit;
+
+ -- An interesting special case, if we have a string literal and
+ -- we are in Ada 83 mode, then we allow it even though it will
+ -- not be flagged as static. This allows expected Ada 83 mode
+ -- use of external names which are string literals, even though
+ -- technically these are not static in Ada 83.
+
+ elsif Ada_Version = Ada_83
+ and then Nkind (Argx) = N_String_Literal
+ then
+ return;
+
+ -- Static expression that raises Constraint_Error. This has
+ -- already been flagged, so just exit from pragma processing.
+
+ elsif Is_Static_Expression (Argx) then
+ raise Pragma_Exit;
+
+ -- Here we have a real error (non-static expression)
+
+ else
+ Error_Msg_Name_1 := Pname;
+ Flag_Non_Static_Expr
+ ("argument for pragma% must be a identifier or " &
+ "static string expression!", Argx);
+ raise Pragma_Exit;
+ end if;
+ end if;
+ end Check_Arg_Is_External_Name;
+
-----------------------------
-- Check_Arg_Is_Identifier --
-----------------------------
procedure Check_Arg_Is_Identifier (Arg : Node_Id) is
Argx : constant Node_Id := Get_Pragma_Arg (Arg);
-
begin
if Nkind (Argx) /= N_Identifier then
Error_Pragma_Arg
procedure Check_Arg_Is_Integer_Literal (Arg : Node_Id) is
Argx : constant Node_Id := Get_Pragma_Arg (Arg);
-
begin
if Nkind (Argx) /= N_Integer_Literal then
Error_Pragma_Arg
end if;
end Check_Arg_Is_One_Of;
+ procedure Check_Arg_Is_One_Of
+ (Arg : Node_Id;
+ N1, N2, N3, N4 : Name_Id)
+ is
+ Argx : constant Node_Id := Get_Pragma_Arg (Arg);
+
+ begin
+ Check_Arg_Is_Identifier (Argx);
+
+ if Chars (Argx) /= N1
+ and then Chars (Argx) /= N2
+ and then Chars (Argx) /= N3
+ and then Chars (Argx) /= N4
+ then
+ Error_Pragma_Arg ("invalid argument for pragma%", Argx);
+ end if;
+ end Check_Arg_Is_One_Of;
+
---------------------------------
-- Check_Arg_Is_Queuing_Policy --
---------------------------------
-- Finally, we have a real error
else
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Flag_Non_Static_Expr
("argument for pragma% must be a static expression!", Argx);
raise Pragma_Exit;
procedure Check_Arg_Is_String_Literal (Arg : Node_Id) is
Argx : constant Node_Id := Get_Pragma_Arg (Arg);
-
begin
if Nkind (Argx) /= N_String_Literal then
Error_Pragma_Arg
("argument for pragma% must be string literal", Argx);
end if;
-
end Check_Arg_Is_String_Literal;
------------------------------------------
end if;
end Check_Arg_Is_Task_Dispatching_Policy;
+ ---------------------
+ -- Check_Arg_Order --
+ ---------------------
+
+ procedure Check_Arg_Order (Names : Name_List) is
+ Arg : Node_Id;
+
+ Highest_So_Far : Natural := 0;
+ -- Highest index in Names seen do far
+
+ begin
+ Arg := Arg1;
+ for J in 1 .. Arg_Count loop
+ if Chars (Arg) /= No_Name then
+ for K in Names'Range loop
+ if Chars (Arg) = Names (K) then
+ if K < Highest_So_Far then
+ Error_Msg_Name_1 := Pname;
+ Error_Msg_N
+ ("parameters out of order for pragma%", Arg);
+ Error_Msg_Name_1 := Names (K);
+ Error_Msg_Name_2 := Names (Highest_So_Far);
+ Error_Msg_N ("\% must appear before %", Arg);
+ raise Pragma_Exit;
+
+ else
+ Highest_So_Far := K;
+ end if;
+ end if;
+ end loop;
+ end if;
+
+ Arg := Next (Arg);
+ end loop;
+ end Check_Arg_Order;
+
--------------------------------
-- Check_At_Least_N_Arguments --
--------------------------------
procedure Check_At_Most_N_Arguments (N : Nat) is
Arg : Node_Id;
-
begin
if Arg_Count > N then
Arg := Arg1;
-
for J in 1 .. N loop
Next (Arg);
Error_Pragma_Arg ("too many arguments for pragma%", Arg);
end if;
end Check_At_Most_N_Arguments;
+ ---------------------
+ -- Check_Component --
+ ---------------------
+
+ procedure Check_Component (Comp : Node_Id) is
+ begin
+ if Nkind (Comp) = N_Component_Declaration then
+ declare
+ Sindic : constant Node_Id :=
+ Subtype_Indication (Component_Definition (Comp));
+ Typ : constant Entity_Id :=
+ Etype (Defining_Identifier (Comp));
+ begin
+ if Nkind (Sindic) = N_Subtype_Indication then
+
+ -- Ada 2005 (AI-216): If a component subtype is subject to
+ -- a per-object constraint, then the component type shall
+ -- be an Unchecked_Union.
+
+ if Has_Per_Object_Constraint (Defining_Identifier (Comp))
+ and then
+ not Is_Unchecked_Union (Etype (Subtype_Mark (Sindic)))
+ then
+ Error_Msg_N ("component subtype subject to per-object" &
+ " constraint must be an Unchecked_Union", Comp);
+ end if;
+ end if;
+
+ if Is_Controlled (Typ) then
+ Error_Msg_N
+ ("component of unchecked union cannot be controlled", Comp);
+
+ elsif Has_Task (Typ) then
+ Error_Msg_N
+ ("component of unchecked union cannot have tasks", Comp);
+ end if;
+ end;
+ end if;
+ end Check_Component;
+
+ ----------------------------------
+ -- Check_Duplicated_Export_Name --
+ ----------------------------------
+
+ procedure Check_Duplicated_Export_Name (Nam : Node_Id) is
+ String_Val : constant String_Id := Strval (Nam);
+
+ begin
+ -- We are only interested in the export case, and in the case of
+ -- generics, it is the instance, not the template, that is the
+ -- problem (the template will generate a warning in any case).
+
+ if not Inside_A_Generic
+ and then (Prag_Id = Pragma_Export
+ or else
+ Prag_Id = Pragma_Export_Procedure
+ or else
+ Prag_Id = Pragma_Export_Valued_Procedure
+ or else
+ Prag_Id = Pragma_Export_Function)
+ then
+ for J in Externals.First .. Externals.Last loop
+ if String_Equal (String_Val, Strval (Externals.Table (J))) then
+ Error_Msg_Sloc := Sloc (Externals.Table (J));
+ Error_Msg_N ("external name duplicates name given#", Nam);
+ exit;
+ end if;
+ end loop;
+
+ Externals.Append (Nam);
+ end if;
+ end Check_Duplicated_Export_Name;
+
-------------------------
-- Check_First_Subtype --
-------------------------
procedure Check_First_Subtype (Arg : Node_Id) is
Argx : constant Node_Id := Get_Pragma_Arg (Arg);
-
begin
if not Is_First_Subtype (Entity (Argx)) then
Error_Pragma_Arg
elsif Present (Parameter_Specifications (Specification (P)))
or else not Is_Compilation_Unit (Defining_Entity (P))
then
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N
("?pragma% is only effective in main program", N);
end if;
procedure Check_Interrupt_Or_Attach_Handler is
Arg1_X : constant Node_Id := Expression (Arg1);
+ Handler_Proc, Proc_Scope : Entity_Id;
begin
Analyze (Arg1_X);
- if not Is_Entity_Name (Arg1_X) then
- Error_Pragma_Arg
- ("argument of pragma% must be entity name", Arg1);
-
- elsif Prag_Id = Pragma_Interrupt_Handler then
+ if Prag_Id = Pragma_Interrupt_Handler then
Check_Restriction (No_Dynamic_Attachment, N);
end if;
- declare
- Handler_Proc : Entity_Id := Empty;
- Proc_Scope : Entity_Id;
- Found : Boolean := False;
-
- begin
- if not Is_Overloaded (Arg1_X) then
- Handler_Proc := Entity (Arg1_X);
-
- else
- declare
- It : Interp;
- Index : Interp_Index;
-
- begin
- Get_First_Interp (Arg1_X, Index, It);
- while Present (It.Nam) loop
- Handler_Proc := It.Nam;
-
- if Ekind (Handler_Proc) = E_Procedure
- and then No (First_Formal (Handler_Proc))
- then
- if not Found then
- Found := True;
- Set_Entity (Arg1_X, Handler_Proc);
- Set_Is_Overloaded (Arg1_X, False);
- else
- Error_Pragma_Arg
- ("ambiguous handler name for pragma% ", Arg1);
- end if;
- end if;
-
- Get_Next_Interp (Index, It);
- end loop;
-
- if not Found then
- Error_Pragma_Arg
- ("argument of pragma% must be parameterless procedure",
- Arg1);
- else
- Handler_Proc := Entity (Arg1_X);
- end if;
- end;
- end if;
-
- Proc_Scope := Scope (Handler_Proc);
+ Handler_Proc := Find_Unique_Parameterless_Procedure (Arg1_X, Arg1);
+ Proc_Scope := Scope (Handler_Proc);
- -- On AAMP only, a pragma Interrupt_Handler is supported for
- -- nonprotected parameterless procedures.
-
- if AAMP_On_Target
- and then Prag_Id = Pragma_Interrupt_Handler
- then
- if Ekind (Handler_Proc) /= E_Procedure then
- Error_Pragma_Arg
- ("argument of pragma% must be a procedure", Arg1);
- end if;
+ -- On AAMP only, a pragma Interrupt_Handler is supported for
+ -- nonprotected parameterless procedures.
- elsif Ekind (Handler_Proc) /= E_Procedure
- or else Ekind (Proc_Scope) /= E_Protected_Type
- then
+ if not AAMP_On_Target
+ or else Prag_Id = Pragma_Attach_Handler
+ then
+ if Ekind (Proc_Scope) /= E_Protected_Type then
Error_Pragma_Arg
("argument of pragma% must be protected procedure", Arg1);
end if;
- if (not AAMP_On_Target or else Prag_Id = Pragma_Attach_Handler)
- and then Ekind (Proc_Scope) = E_Protected_Type
- then
- if Parent (N) /=
- Protected_Definition (Parent (Proc_Scope))
- then
- Error_Pragma ("pragma% must be in protected definition");
- end if;
- end if;
-
- if not Is_Library_Level_Entity (Proc_Scope)
- or else (AAMP_On_Target
- and then not Is_Library_Level_Entity (Handler_Proc))
- then
- Error_Pragma_Arg
- ("pragma% requires library-level entity", Arg1);
+ if Parent (N) /= Protected_Definition (Parent (Proc_Scope)) then
+ Error_Pragma ("pragma% must be in protected definition");
end if;
+ end if;
- if Present (First_Formal (Handler_Proc)) then
- Error_Pragma_Arg
- ("argument of pragma% must be parameterless procedure",
- Arg1);
- end if;
- end;
+ if not Is_Library_Level_Entity (Proc_Scope)
+ or else (AAMP_On_Target
+ and then not Is_Library_Level_Entity (Handler_Proc))
+ then
+ Error_Pragma_Arg
+ ("argument for pragma% must be library level entity", Arg1);
+ end if;
end Check_Interrupt_Or_Attach_Handler;
-------------------------------------------
-- sequence, so the only way we get here is by being in the
-- declarative part of the body.
- elsif Nkind (P) = N_Subprogram_Body
- or else Nkind (P) = N_Package_Body
- or else Nkind (P) = N_Task_Body
- or else Nkind (P) = N_Entry_Body
+ elsif Nkind_In (P, N_Subprogram_Body,
+ N_Package_Body,
+ N_Task_Body,
+ N_Entry_Body)
then
return;
end if;
procedure Check_No_Identifiers is
Arg_Node : Node_Id;
-
begin
if Arg_Count > 0 then
Arg_Node := Arg1;
-
while Present (Arg_Node) loop
Check_No_Identifier (Arg_Node);
Next (Arg_Node);
begin
if Present (Arg) and then Chars (Arg) /= No_Name then
if Chars (Arg) /= Id then
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_Name_2 := Id;
Error_Msg_N ("pragma% argument expects identifier%", Arg);
raise Pragma_Exit;
Check_Optional_Identifier (Arg, Name_Find);
end Check_Optional_Identifier;
- -----------------------------
- -- Check_Static_Constraint --
- -----------------------------
+ --------------------------------------
+ -- Check_Precondition_Postcondition --
+ --------------------------------------
- -- Note: for convenience in writing this procedure, in addition to
- -- the officially (i.e. by spec) allowed argument which is always
- -- a constraint, it also allows ranges and discriminant associations.
- -- Above is not clear ???
+ procedure Check_Precondition_Postcondition (In_Body : out Boolean) is
+ P : Node_Id;
+ PO : Node_Id;
- procedure Check_Static_Constraint (Constr : Node_Id) is
+ procedure Chain_PPC (PO : Node_Id);
+ -- If PO is a subprogram declaration node (or a generic subprogram
+ -- declaration node), then the precondition/postcondition applies
+ -- to this subprogram and the processing for the pragma is completed.
+ -- Otherwise the pragma is misplaced.
- --------------------
- -- Require_Static --
- --------------------
+ ---------------
+ -- Chain_PPC --
+ ---------------
- procedure Require_Static (E : Node_Id);
- -- Require given expression to be static expression
+ procedure Chain_PPC (PO : Node_Id) is
+ S : Node_Id;
- procedure Require_Static (E : Node_Id) is
begin
- if not Is_OK_Static_Expression (E) then
- Flag_Non_Static_Expr
- ("non-static constraint not allowed in Unchecked_Union!", E);
- raise Pragma_Exit;
+ if not Nkind_In (PO, N_Subprogram_Declaration,
+ N_Generic_Subprogram_Declaration)
+ then
+ Pragma_Misplaced;
end if;
- end Require_Static;
- -- Start of processing for Check_Static_Constraint
+ -- Here if we have subprogram or generic subprogram declaration
- begin
- case Nkind (Constr) is
- when N_Discriminant_Association =>
- Require_Static (Expression (Constr));
+ S := Defining_Unit_Name (Specification (PO));
- when N_Range =>
- Require_Static (Low_Bound (Constr));
- Require_Static (High_Bound (Constr));
+ -- Analyze the pragma unless it appears within a package spec,
+ -- which is the case where we delay the analysis of the PPC until
+ -- the end of the package declarations (for details, see
+ -- Analyze_Package_Specification.Analyze_PPCs).
- when N_Attribute_Reference =>
- Require_Static (Type_Low_Bound (Etype (Prefix (Constr))));
- Require_Static (Type_High_Bound (Etype (Prefix (Constr))));
+ if not Is_Package_Or_Generic_Package (Scope (S)) then
+ Analyze_PPC_In_Decl_Part (N, S);
+ end if;
- when N_Range_Constraint =>
- Check_Static_Constraint (Range_Expression (Constr));
+ -- Chain spec PPC pragma to list for subprogram
- when N_Index_Or_Discriminant_Constraint =>
- declare
- IDC : Entity_Id := First (Constraints (Constr));
- begin
- while Present (IDC) loop
- Check_Static_Constraint (IDC);
- Next (IDC);
- end loop;
- end;
+ Set_Next_Pragma (N, Spec_PPC_List (S));
+ Set_Spec_PPC_List (S, N);
- when others =>
- null;
- end case;
- end Check_Static_Constraint;
+ -- Return indicating spec case
- --------------------------------------
- -- Check_Valid_Configuration_Pragma --
- --------------------------------------
+ In_Body := False;
+ return;
+ end Chain_PPC;
+
+ -- Start of processing for Check_Precondition_Postcondition
+
+ begin
+ if not Is_List_Member (N) then
+ Pragma_Misplaced;
+ end if;
+
+ -- Record whether pragma is enabled
+
+ Set_PPC_Enabled (N, Check_Enabled (Pname));
+
+ -- If we are within an inlined body, the legality of the pragma
+ -- has been checked already.
+
+ if In_Inlined_Body then
+ In_Body := True;
+ return;
+ end if;
+
+ -- Search prior declarations
+
+ P := N;
+ while Present (Prev (P)) loop
+ P := Prev (P);
+
+ -- If the previous node is a generic subprogram, do not go to
+ -- to the original node, which is the unanalyzed tree: we need
+ -- to attach the pre/postconditions to the analyzed version
+ -- at this point. They get propagated to the original tree when
+ -- analyzing the corresponding body.
+
+ if Nkind (P) not in N_Generic_Declaration then
+ PO := Original_Node (P);
+ else
+ PO := P;
+ end if;
+
+ -- Skip past prior pragma
+
+ if Nkind (PO) = N_Pragma then
+ null;
+
+ -- Skip stuff not coming from source
+
+ elsif not Comes_From_Source (PO) then
+ null;
+
+ -- Only remaining possibility is subprogram declaration
+
+ else
+ Chain_PPC (PO);
+ return;
+ end if;
+ end loop;
+
+ -- If we fall through loop, pragma is at start of list, so see if
+ -- it is at the start of declarations of a subprogram body.
+
+ if Nkind (Parent (N)) = N_Subprogram_Body
+ and then List_Containing (N) = Declarations (Parent (N))
+ then
+ if Operating_Mode /= Generate_Code then
+
+ -- Analyze expression in pragma, for correctness
+ -- and for ASIS use.
+
+ Preanalyze_Spec_Expression
+ (Get_Pragma_Arg (Arg1), Standard_Boolean);
+ end if;
+
+ In_Body := True;
+ return;
+
+ -- See if it is in the pragmas after a library level subprogram
+
+ elsif Nkind (Parent (N)) = N_Compilation_Unit_Aux then
+ Chain_PPC (Unit (Parent (Parent (N))));
+ return;
+ end if;
+
+ -- If we fall through, pragma was misplaced
+
+ Pragma_Misplaced;
+ end Check_Precondition_Postcondition;
+
+ -----------------------------
+ -- Check_Static_Constraint --
+ -----------------------------
+
+ -- Note: for convenience in writing this procedure, in addition to
+ -- the officially (i.e. by spec) allowed argument which is always
+ -- a constraint, it also allows ranges and discriminant associations.
+ -- Above is not clear ???
+
+ procedure Check_Static_Constraint (Constr : Node_Id) is
+
+ procedure Require_Static (E : Node_Id);
+ -- Require given expression to be static expression
+
+ --------------------
+ -- Require_Static --
+ --------------------
+
+ procedure Require_Static (E : Node_Id) is
+ begin
+ if not Is_OK_Static_Expression (E) then
+ Flag_Non_Static_Expr
+ ("non-static constraint not allowed in Unchecked_Union!", E);
+ raise Pragma_Exit;
+ end if;
+ end Require_Static;
+
+ -- Start of processing for Check_Static_Constraint
+
+ begin
+ case Nkind (Constr) is
+ when N_Discriminant_Association =>
+ Require_Static (Expression (Constr));
+
+ when N_Range =>
+ Require_Static (Low_Bound (Constr));
+ Require_Static (High_Bound (Constr));
+
+ when N_Attribute_Reference =>
+ Require_Static (Type_Low_Bound (Etype (Prefix (Constr))));
+ Require_Static (Type_High_Bound (Etype (Prefix (Constr))));
+
+ when N_Range_Constraint =>
+ Check_Static_Constraint (Range_Expression (Constr));
+
+ when N_Index_Or_Discriminant_Constraint =>
+ declare
+ IDC : Entity_Id;
+ begin
+ IDC := First (Constraints (Constr));
+ while Present (IDC) loop
+ Check_Static_Constraint (IDC);
+ Next (IDC);
+ end loop;
+ end;
+
+ when others =>
+ null;
+ end case;
+ end Check_Static_Constraint;
- -- A configuration pragma must appear in the context clause of
- -- a compilation unit, at the start of the list (i.e. only other
- -- pragmas may precede it).
+ --------------------------------------
+ -- Check_Valid_Configuration_Pragma --
+ --------------------------------------
+
+ -- A configuration pragma must appear in the context clause of a
+ -- compilation unit, and only other pragmas may precede it. Note that
+ -- the test also allows use in a configuration pragma file.
procedure Check_Valid_Configuration_Pragma is
begin
Analyze (Expression (Arg1));
- if Unit_Kind = N_Generic_Subprogram_Declaration
+ if Unit_Kind = N_Generic_Subprogram_Declaration
or else Unit_Kind = N_Subprogram_Declaration
then
Unit_Name := Defining_Entity (Unit_Node);
- elsif Unit_Kind = N_Function_Instantiation
- or else Unit_Kind = N_Package_Instantiation
- or else Unit_Kind = N_Procedure_Instantiation
- then
+ elsif Unit_Kind in N_Generic_Instantiation then
Unit_Name := Defining_Entity (Unit_Node);
else
Pragma_Misplaced;
elsif (Nkind (Parent_Node) = N_Generic_Package_Declaration
- or else Nkind (Parent_Node)
- = N_Generic_Subprogram_Declaration)
+ or else Nkind (Parent_Node) =
+ N_Generic_Subprogram_Declaration)
and then Plist = Generic_Formal_Declarations (Parent_Node)
then
Pragma_Misplaced;
end if;
end Check_Valid_Library_Unit_Pragma;
+ -------------------
+ -- Check_Variant --
+ -------------------
+
+ procedure Check_Variant (Variant : Node_Id) is
+ Clist : constant Node_Id := Component_List (Variant);
+ Comp : Node_Id;
+
+ begin
+ if not Is_Non_Empty_List (Component_Items (Clist)) then
+ Error_Msg_N
+ ("Unchecked_Union may not have empty component list",
+ Variant);
+ return;
+ end if;
+
+ Comp := First (Component_Items (Clist));
+ while Present (Comp) loop
+ Check_Component (Comp);
+ Next (Comp);
+ end loop;
+ end Check_Variant;
+
------------------
-- Error_Pragma --
------------------
procedure Error_Pragma (Msg : String) is
begin
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N (Msg, N);
raise Pragma_Exit;
end Error_Pragma;
procedure Error_Pragma_Arg (Msg : String; Arg : Node_Id) is
begin
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N (Msg, Get_Pragma_Arg (Arg));
raise Pragma_Exit;
end Error_Pragma_Arg;
procedure Error_Pragma_Arg (Msg1, Msg2 : String; Arg : Node_Id) is
begin
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N (Msg1, Get_Pragma_Arg (Arg));
Error_Pragma_Arg (Msg2, Arg);
end Error_Pragma_Arg;
procedure Error_Pragma_Arg_Ident (Msg : String; Arg : Node_Id) is
begin
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N (Msg, Arg);
raise Pragma_Exit;
end Error_Pragma_Arg_Ident;
+ ----------------------
+ -- Error_Pragma_Ref --
+ ----------------------
+
+ procedure Error_Pragma_Ref (Msg : String; Ref : Entity_Id) is
+ begin
+ Error_Msg_Name_1 := Pname;
+ Error_Msg_Sloc := Sloc (Ref);
+ Error_Msg_NE (Msg, N, Ref);
+ raise Pragma_Exit;
+ end Error_Pragma_Ref;
+
------------------------
-- Find_Lib_Unit_Name --
------------------------
else
Analyze (Id);
end if;
-
end Find_Program_Unit_Name;
+ -----------------------------------------
+ -- Find_Unique_Parameterless_Procedure --
+ -----------------------------------------
+
+ function Find_Unique_Parameterless_Procedure
+ (Name : Entity_Id;
+ Arg : Node_Id) return Entity_Id
+ is
+ Proc : Entity_Id := Empty;
+
+ begin
+ -- The body of this procedure needs some comments ???
+
+ if not Is_Entity_Name (Name) then
+ Error_Pragma_Arg
+ ("argument of pragma% must be entity name", Arg);
+
+ elsif not Is_Overloaded (Name) then
+ Proc := Entity (Name);
+
+ if Ekind (Proc) /= E_Procedure
+ or else Present (First_Formal (Proc)) then
+ Error_Pragma_Arg
+ ("argument of pragma% must be parameterless procedure", Arg);
+ end if;
+
+ else
+ declare
+ Found : Boolean := False;
+ It : Interp;
+ Index : Interp_Index;
+
+ begin
+ Get_First_Interp (Name, Index, It);
+ while Present (It.Nam) loop
+ Proc := It.Nam;
+
+ if Ekind (Proc) = E_Procedure
+ and then No (First_Formal (Proc))
+ then
+ if not Found then
+ Found := True;
+ Set_Entity (Name, Proc);
+ Set_Is_Overloaded (Name, False);
+ else
+ Error_Pragma_Arg
+ ("ambiguous handler name for pragma% ", Arg);
+ end if;
+ end if;
+
+ Get_Next_Interp (Index, It);
+ end loop;
+
+ if not Found then
+ Error_Pragma_Arg
+ ("argument of pragma% must be parameterless procedure",
+ Arg);
+ else
+ Proc := Entity (Name);
+ end if;
+ end;
+ end if;
+
+ return Proc;
+ end Find_Unique_Parameterless_Procedure;
+
-------------------------
-- Gather_Associations --
-------------------------
-- Otherwise first deal with any positional parameters present
Arg := First (Pragma_Argument_Associations (N));
-
for Index in Args'Range loop
exit when No (Arg) or else Chars (Arg) /= No_Name;
Args (Index) := Expression (Arg);
end if;
if Index = Names'Last then
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N ("pragma% does not allow & argument", Arg);
-- Check for possible misspelling
for Index1 in Names'Range loop
if Is_Bad_Spelling_Of
- (Get_Name_String (Chars (Arg)),
- Get_Name_String (Names (Index1)))
+ (Chars (Arg), Names (Index1))
then
Error_Msg_Name_1 := Names (Index1);
Error_Msg_N ("\possible misspelling of%", Arg);
end loop;
end Gather_Associations;
- --------------------
- -- Get_Pragma_Arg --
- --------------------
-
- function Get_Pragma_Arg (Arg : Node_Id) return Node_Id is
- begin
- if Nkind (Arg) = N_Pragma_Argument_Association then
- return Expression (Arg);
- else
- return Arg;
- end if;
- end Get_Pragma_Arg;
-
-----------------
-- GNAT_Pragma --
-----------------
-- Is_Configuration_Pragma --
-----------------------------
- -- A configuration pragma must appear in the context clause of
- -- a compilation unit, at the start of the list (i.e. only other
- -- pragmas may precede it).
+ -- A configuration pragma must appear in the context clause of a
+ -- compilation unit, and only other pragmas may precede it. Note that
+ -- the test below also permits use in a configuration pragma file.
function Is_Configuration_Pragma return Boolean is
Lis : constant List_Id := List_Containing (N);
end if;
end Is_Configuration_Pragma;
+ --------------------------
+ -- Is_In_Context_Clause --
+ --------------------------
+
+ function Is_In_Context_Clause return Boolean is
+ Plist : List_Id;
+ Parent_Node : Node_Id;
+
+ begin
+ if not Is_List_Member (N) then
+ return False;
+
+ else
+ Plist := List_Containing (N);
+ Parent_Node := Parent (Plist);
+
+ if Parent_Node = Empty
+ or else Nkind (Parent_Node) /= N_Compilation_Unit
+ or else Context_Items (Parent_Node) /= Plist
+ then
+ return False;
+ end if;
+ end if;
+
+ return True;
+ end Is_In_Context_Clause;
+
+ ---------------------------------
+ -- Is_Static_String_Expression --
+ ---------------------------------
+
+ function Is_Static_String_Expression (Arg : Node_Id) return Boolean is
+ Argx : constant Node_Id := Get_Pragma_Arg (Arg);
+
+ begin
+ Analyze_And_Resolve (Argx);
+ return Is_OK_Static_Expression (Argx)
+ and then Nkind (Argx) = N_String_Literal;
+ end Is_Static_String_Expression;
+
----------------------
-- Pragma_Misplaced --
----------------------
K : Node_Kind;
Utyp : Entity_Id;
+ procedure Set_Atomic (E : Entity_Id);
+ -- Set given type as atomic, and if no explicit alignment was given,
+ -- set alignment to unknown, since back end knows what the alignment
+ -- requirements are for atomic arrays. Note: this step is necessary
+ -- for derived types.
+
+ ----------------
+ -- Set_Atomic --
+ ----------------
+
+ procedure Set_Atomic (E : Entity_Id) is
+ begin
+ Set_Is_Atomic (E);
+
+ if not Has_Alignment_Clause (E) then
+ Set_Alignment (E, Uint_0);
+ end if;
+ end Set_Atomic;
+
+ -- Start of processing for Process_Atomic_Shared_Volatile
+
begin
Check_Ada_83_Warning;
Check_No_Identifiers;
end if;
if Prag_Id /= Pragma_Volatile then
- Set_Is_Atomic (E);
- Set_Is_Atomic (Underlying_Type (E));
+ Set_Atomic (E);
+ Set_Atomic (Underlying_Type (E));
+ Set_Atomic (Base_Type (E));
end if;
- -- Attribute belongs on the base type. If the
- -- view of the type is currently private, it also
- -- belongs on the underlying type.
+ -- Attribute belongs on the base type. If the view of the type is
+ -- currently private, it also belongs on the underlying type.
Set_Is_Volatile (Base_Type (E));
Set_Is_Volatile (Underlying_Type (E));
if Prag_Id /= Pragma_Volatile then
Set_Is_Atomic (E);
- -- If the object declaration has an explicit
- -- initialization, a temporary may have to be
- -- created to hold the expression, to insure
- -- that access to the object remain atomic.
+ -- If the object declaration has an explicit initialization, a
+ -- temporary may have to be created to hold the expression, to
+ -- ensure that access to the object remain atomic.
if Nkind (Parent (E)) = N_Object_Declaration
and then Present (Expression (Parent (E)))
-- An interesting improvement here. If an object of type X
-- is declared atomic, and the type X is not atomic, that's
- -- a pity, since it may not have appropraite alignment etc.
+ -- a pity, since it may not have appropriate alignment etc.
-- We can rescue this in the special case where the object
-- and type are in the same unit by just setting the type
-- as atomic, so that the back end will process it as atomic.
end if;
end Process_Atomic_Shared_Volatile;
+ -------------------------------------------
+ -- Process_Compile_Time_Warning_Or_Error --
+ -------------------------------------------
+
+ procedure Process_Compile_Time_Warning_Or_Error is
+ Arg1x : constant Node_Id := Get_Pragma_Arg (Arg1);
+
+ begin
+ Check_Arg_Count (2);
+ Check_No_Identifiers;
+ Check_Arg_Is_Static_Expression (Arg2, Standard_String);
+ Analyze_And_Resolve (Arg1x, Standard_Boolean);
+
+ if Compile_Time_Known_Value (Arg1x) then
+ if Is_True (Expr_Value (Get_Pragma_Arg (Arg1))) then
+ declare
+ Str : constant String_Id :=
+ Strval (Get_Pragma_Arg (Arg2));
+ Len : constant Int := String_Length (Str);
+ Cont : Boolean;
+ Ptr : Nat;
+ CC : Char_Code;
+ C : Character;
+ Cent : constant Entity_Id :=
+ Cunit_Entity (Current_Sem_Unit);
+
+ Force : constant Boolean :=
+ Prag_Id = Pragma_Compile_Time_Warning
+ and then
+ Is_Spec_Name (Unit_Name (Current_Sem_Unit))
+ and then (Ekind (Cent) /= E_Package
+ or else not In_Private_Part (Cent));
+ -- Set True if this is the warning case, and we are in the
+ -- visible part of a package spec, or in a subprogram spec,
+ -- in which case we want to force the client to see the
+ -- warning, even though it is not in the main unit.
+
+ begin
+ -- Loop through segments of message separated by line
+ -- feeds. We output these segments as separate messages
+ -- with continuation marks for all but the first.
+
+ Cont := False;
+ Ptr := 1;
+ loop
+ Error_Msg_Strlen := 0;
+
+ -- Loop to copy characters from argument to error
+ -- message string buffer.
+
+ loop
+ exit when Ptr > Len;
+ CC := Get_String_Char (Str, Ptr);
+ Ptr := Ptr + 1;
+
+ -- Ignore wide chars ??? else store character
+
+ if In_Character_Range (CC) then
+ C := Get_Character (CC);
+ exit when C = ASCII.LF;
+ Error_Msg_Strlen := Error_Msg_Strlen + 1;
+ Error_Msg_String (Error_Msg_Strlen) := C;
+ end if;
+ end loop;
+
+ -- Here with one line ready to go
+
+ Error_Msg_Warn := Prag_Id = Pragma_Compile_Time_Warning;
+
+ -- If this is a warning in a spec, then we want clients
+ -- to see the warning, so mark the message with the
+ -- special sequence !! to force the warning. In the case
+ -- of a package spec, we do not force this if we are in
+ -- the private part of the spec.
+
+ if Force then
+ if Cont = False then
+ Error_Msg_N ("<~!!", Arg1);
+ Cont := True;
+ else
+ Error_Msg_N ("\<~!!", Arg1);
+ end if;
+
+ -- Error, rather than warning, or in a body, so we do not
+ -- need to force visibility for client (error will be
+ -- output in any case, and this is the situation in which
+ -- we do not want a client to get a warning, since the
+ -- warning is in the body or the spec private part.
+
+ else
+ if Cont = False then
+ Error_Msg_N ("<~", Arg1);
+ Cont := True;
+ else
+ Error_Msg_N ("\<~", Arg1);
+ end if;
+ end if;
+
+ exit when Ptr > Len;
+ end loop;
+ end;
+ end if;
+ end if;
+ end Process_Compile_Time_Warning_Or_Error;
+
------------------------
-- Process_Convention --
------------------------
procedure Set_Convention_From_Pragma (E : Entity_Id) is
begin
+ -- Ada 2005 (AI-430): Check invalid attempt to change convention
+ -- for an overridden dispatching operation. Technically this is
+ -- an amendment and should only be done in Ada 2005 mode. However,
+ -- this is clearly a mistake, since the problem that is addressed
+ -- by this AI is that there is a clear gap in the RM!
+
+ if Is_Dispatching_Operation (E)
+ and then Present (Overridden_Operation (E))
+ and then C /= Convention (Overridden_Operation (E))
+ then
+ Error_Pragma_Arg
+ ("cannot change convention for " &
+ "overridden dispatching operation",
+ Arg1);
+ end if;
+
+ -- Set the convention
+
Set_Convention (E, C);
Set_Has_Convention_Pragma (E);
Set_Convention (Class_Wide_Type (E), C);
end if;
- -- If the entity is a record type, then check for special case
- -- of C_Pass_By_Copy, which is treated the same as C except that
- -- the special record flag is set. This convention is also only
- -- permitted on record types (see AI95-00131).
+ -- If the entity is a record type, then check for special case of
+ -- C_Pass_By_Copy, which is treated the same as C except that the
+ -- special record flag is set. This convention is only permitted
+ -- on record types (see AI95-00131).
if Cname = Name_C_Pass_By_Copy then
if Is_Record_Type (E) then
begin
Check_At_Least_N_Arguments (2);
- Check_Arg_Is_Identifier (Arg1);
Check_Optional_Identifier (Arg1, Name_Convention);
+ Check_Arg_Is_Identifier (Arg1);
Cname := Chars (Expression (Arg1));
-- C_Pass_By_Copy is treated as a synonym for convention C
elsif Is_Convention_Name (Cname) then
C := Get_Convention_Id (Chars (Expression (Arg1)));
- -- In DEC VMS, it seems that there is an undocumented feature
- -- that any unrecognized convention is treated as the default,
- -- which for us is convention C. It does not seem so terrible
- -- to do this unconditionally, silently in the VMS case, and
- -- with a warning in the non-VMS case.
+ -- In DEC VMS, it seems that there is an undocumented feature that
+ -- any unrecognized convention is treated as the default, which for
+ -- us is convention C. It does not seem so terrible to do this
+ -- unconditionally, silently in the VMS case, and with a warning
+ -- in the non-VMS case.
else
if Warn_On_Export_Import and not OpenVMS_On_Target then
C := Convention_C;
end if;
- Check_Arg_Is_Local_Name (Arg2);
Check_Optional_Identifier (Arg2, Name_Entity);
+ Check_Arg_Is_Local_Name (Arg2);
Id := Expression (Arg2);
Analyze (Id);
E := Entity (Id);
- -- Go to renamed subprogram if present, since convention applies
- -- to the actual renamed entity, not to the renaming entity.
+ -- Go to renamed subprogram if present, since convention applies to
+ -- the actual renamed entity, not to the renaming entity. If the
+ -- subprogram is inherited, go to parent subprogram.
if Is_Subprogram (E)
and then Present (Alias (E))
- and then Nkind (Parent (Declaration_Node (E))) =
- N_Subprogram_Renaming_Declaration
then
- E := Alias (E);
- end if;
+ if Nkind (Parent (Declaration_Node (E))) =
+ N_Subprogram_Renaming_Declaration
+ then
+ if Scope (E) /= Scope (Alias (E)) then
+ Error_Pragma_Ref
+ ("cannot apply pragma% to non-local entity&#", E);
+ end if;
- -- Check that we not applying this to a specless body
+ E := Alias (E);
+
+ elsif Nkind_In (Parent (E), N_Full_Type_Declaration,
+ N_Private_Extension_Declaration)
+ and then Scope (E) = Scope (Alias (E))
+ then
+ E := Alias (E);
+ end if;
+ end if;
+
+ -- Check that we are not applying this to a specless body
if Is_Subprogram (E)
and then Nkind (Parent (Declaration_Node (E))) = N_Subprogram_Body
or else
Ekind (E) = E_Named_Real
then
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N
("cannot apply pragma% to named constant!",
Get_Pragma_Arg (Arg2));
("\supply appropriate type for&!", Arg2);
end if;
+ if Ekind (E) = E_Enumeration_Literal then
+ Error_Pragma ("enumeration literal not allowed for pragma%");
+ end if;
+
+ -- Check for rep item appearing too early or too late
+
if Etype (E) = Any_Type
or else Rep_Item_Too_Early (E, N)
then
and then Ekind (E) /= E_Variable
and then not
(Is_Access_Type (E)
- and then Ekind (Designated_Type (E)) = E_Subprogram_Type)
+ and then Ekind (Designated_Type (E)) = E_Subprogram_Type)
then
Error_Pragma_Arg
("second argument of pragma% must be subprogram (type)",
Comp_Unit := Get_Source_Unit (E);
Set_Convention_From_Pragma (E);
- -- Treat a pragma Import as an implicit body, for GPS use.
+ -- Treat a pragma Import as an implicit body, for GPS use
if Prag_Id = Pragma_Import then
- Generate_Reference (E, Id, 'b');
+ Generate_Reference (E, Id, 'b');
end if;
E1 := E;
E1 := Homonym (E1);
exit when No (E1) or else Scope (E1) /= Current_Scope;
- -- Note: below we are missing a check for Rep_Item_Too_Late.
- -- That is deliberate, we cannot chain the rep item on more
- -- than one Rep_Item chain, to be fixed later ???
+ -- Do not set the pragma on inherited operations or on
+ -- formal subprograms.
if Comes_From_Source (E1)
and then Comp_Unit = Get_Source_Unit (E1)
+ and then not Is_Formal_Subprogram (E1)
and then Nkind (Original_Node (Parent (E1))) /=
- N_Full_Type_Declaration
+ N_Full_Type_Declaration
then
+ if Present (Alias (E1))
+ and then Scope (E1) /= Scope (Alias (E1))
+ then
+ Error_Pragma_Ref
+ ("cannot apply pragma% to non-local entity& declared#",
+ E1);
+ end if;
+
Set_Convention_From_Pragma (E1);
if Prag_Id = Pragma_Import then
Code_Val : Uint;
begin
- GNAT_Pragma;
-
if not OpenVMS_On_Target then
Error_Pragma
("?pragma% ignored (applies only to Open'V'M'S)");
(Arg_Internal : Node_Id := Empty)
is
begin
- GNAT_Pragma;
-
if No (Arg_Internal) then
Error_Pragma ("Internal parameter required for pragma%");
end if;
("pragma% must designate an object", Arg_Internal);
end if;
- if Is_Psected (Def_Id) then
+ if Has_Rep_Pragma (Def_Id, Name_Common_Object)
+ or else
+ Has_Rep_Pragma (Def_Id, Name_Psect_Object)
+ then
Error_Pragma_Arg
- ("previous Psect_Object applies, pragma % not permitted",
+ ("previous Common/Psect_Object applies, pragma % not permitted",
Arg_Internal);
end if;
Set_Extended_Import_Export_External_Name (Def_Id, Arg_External);
- if Present (Arg_Size)
- and then Nkind (Arg_Size) /= N_Identifier
- and then Nkind (Arg_Size) /= N_String_Literal
- then
- Error_Pragma_Arg
- ("pragma% Size argument must be identifier or string literal",
- Arg_Size);
+ if Present (Arg_Size) then
+ Check_Arg_Is_External_Name (Arg_Size);
end if;
-- Export_Object case
then
Error_Msg_Sloc := Sloc (Def_Id);
Error_Pragma_Arg
- ("no initialization allowed for declaration of& #",
- "\imported entities cannot be initialized ('R'M' 'B.1(24))",
- Arg1);
+ ("imported entities cannot be initialized (RM B.1(24))",
+ "\no initialization allowed for & declared#", Arg1);
else
Set_Imported (Def_Id);
- Note_Possible_Modification (Arg_Internal);
+ Note_Possible_Modification (Arg_Internal, Sure => False);
end if;
end if;
end Process_Extended_Import_Export_Object_Pragma;
end if;
-- We have a match if the corresponding argument is of an
- -- anonymous access type, and its designicated type matches
+ -- anonymous access type, and its designated type matches
-- the type of the prefix of the access attribute
return Ekind (Ftyp) = E_Anonymous_Access_Type
begin
Process_Extended_Import_Export_Internal_Arg (Arg_Internal);
- Hom_Id := Entity (Arg_Internal);
Ent := Empty;
Ambiguous := False;
- -- Loop through homonyms (overloadings) of Hom_Id
+ -- Loop through homonyms (overloadings) of the entity
+ Hom_Id := Entity (Arg_Internal);
while Present (Hom_Id) loop
Def_Id := Get_Base_Subprogram (Hom_Id);
-- Pragma cannot apply to subprogram body
if Is_Subprogram (Def_Id)
- and then
- Nkind (Parent
- (Declaration_Node (Def_Id))) = N_Subprogram_Body
+ and then Nkind (Parent (Declaration_Node (Def_Id))) =
+ N_Subprogram_Body
then
Error_Pragma
("pragma% requires separate spec"
elsif Etype (Def_Id) /= Standard_Void_Type
and then
- (Chars (N) = Name_Export_Procedure
- or else Chars (N) = Name_Import_Procedure)
+ (Pname = Name_Export_Procedure
+ or else
+ Pname = Name_Import_Procedure)
then
Match := False;
else
if not Ambiguous then
Ambiguous := True;
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N
("pragma% does not uniquely identify subprogram!",
N);
if Is_Generic_Subprogram (Entity (Arg_Internal)) then
Error_Pragma
("pragma% cannot be given for generic subprogram");
-
else
Error_Pragma
("pragma% does not identify local subprogram");
return;
end if;
- -- Import pragmas must be be for imported entities
+ -- Import pragmas must be for imported entities
if Prag_Id = Pragma_Import_Function
or else
-- Here we have the Export case which can set the entity as exported
- -- But does not do so if the specified external name is null,
- -- since that is taken as a signal in DEC Ada 83 (with which
- -- we want to be compatible) to request no external name.
+ -- But does not do so if the specified external name is null, since
+ -- that is taken as a signal in DEC Ada 83 (with which we want to be
+ -- compatible) to request no external name.
elsif Nkind (Arg_External) = N_String_Literal
and then String_Length (Strval (Arg_External)) = 0
then
null;
- -- In all other cases, set entit as exported
+ -- In all other cases, set entity as exported
else
Set_Exported (Ent, Arg_Internal);
-- Deal with positional ones first
Formal := First_Formal (Ent);
+
if Present (Expressions (Arg_Mechanism)) then
Mname := First (Expressions (Arg_Mechanism));
-
while Present (Mname) loop
if No (Formal) then
Error_Pragma_Arg
if Present (Component_Associations (Arg_Mechanism)) then
Massoc := First (Component_Associations (Arg_Mechanism));
-
while Present (Massoc) loop
Choice := First (Choices (Massoc));
if Chars (Choice) = Chars (Formal) then
Set_Mechanism_Value
(Formal, Expression (Massoc));
+
+ -- Set entity on identifier for ASIS
+
+ Set_Entity (Choice, Formal);
+
exit;
end if;
else
Dval := Default_Value (Formal);
- if not Present (Dval) then
+ if No (Dval) then
Error_Msg_NE
("optional formal& does not have default value!",
Arg_First_Optional_Parameter, Formal);
Exp : Node_Id;
begin
- GNAT_Pragma;
Check_No_Identifiers;
Check_At_Least_N_Arguments (1);
begin
Process_Convention (C, Def_Id);
Kill_Size_Check_Code (Def_Id);
- Note_Possible_Modification (Expression (Arg2));
+ Note_Possible_Modification (Expression (Arg2), Sure => False);
if Ekind (Def_Id) = E_Variable
or else
Ekind (Def_Id) = E_Constant
then
+ -- We do not permit Import to apply to a renaming declaration
+
+ if Present (Renamed_Object (Def_Id)) then
+ Error_Pragma_Arg
+ ("pragma% not allowed for object renaming", Arg2);
+
-- User initialization is not allowed for imported object, but
-- the object declaration may contain a default initialization,
-- that will be discarded. Note that an explicit initialization
-- only counts if it comes from source, otherwise it is simply
-- the code generator making an implicit initialization explicit.
- if Present (Expression (Parent (Def_Id)))
- and then Comes_From_Source (Expression (Parent (Def_Id)))
+ elsif Present (Expression (Parent (Def_Id)))
+ and then Comes_From_Source (Expression (Parent (Def_Id)))
then
Error_Msg_Sloc := Sloc (Def_Id);
Error_Pragma_Arg
("no initialization allowed for declaration of& #",
- "\imported entities cannot be initialized ('R'M' 'B.1(24))",
+ "\imported entities cannot be initialized (RM B.1(24))",
Arg2);
else
Set_Imported (Def_Id);
- Set_Is_Public (Def_Id);
Process_Interface_Name (Def_Id, Arg3, Arg4);
+ -- Note that we do not set Is_Public here. That's because we
+ -- only want to set it if there is no address clause, and we
+ -- don't know that yet, so we delay that processing till
+ -- freeze time.
+
-- pragma Import completes deferred constants
if Ekind (Def_Id) = E_Constant then
-- denoted entities in the same declarative part.
Hom_Id := Def_Id;
-
while Present (Hom_Id) loop
Def_Id := Get_Base_Subprogram (Hom_Id);
else
Set_Imported (Def_Id);
- -- If Import intrinsic, set intrinsic flag
- -- and verify that it is known as such.
+ -- Special processing for Convention_Intrinsic
if C = Convention_Intrinsic then
+
+ -- Link_Name argument not allowed for intrinsic
+
+ if Present (Arg3)
+ and then Chars (Arg3) = Name_Link_Name
+ then
+ Arg4 := Arg3;
+ end if;
+
+ if Present (Arg4) then
+ Error_Pragma_Arg
+ ("Link_Name argument not allowed for " &
+ "Import Intrinsic",
+ Arg4);
+ end if;
+
Set_Is_Intrinsic_Subprogram (Def_Id);
- Check_Intrinsic_Subprogram
- (Def_Id, Expression (Arg2));
+
+ -- If no external name is present, then check that
+ -- this is a valid intrinsic subprogram. If an external
+ -- name is present, then this is handled by the back end.
+
+ if No (Arg3) then
+ Check_Intrinsic_Subprogram (Def_Id, Expression (Arg2));
+ end if;
end if;
- -- All interfaced procedures need an external
- -- symbol created for them since they are
- -- always referenced from another object file.
+ -- All interfaced procedures need an external symbol
+ -- created for them since they are always referenced
+ -- from another object file.
Set_Is_Public (Def_Id);
if Present (Decl)
and then Nkind (Decl) = N_Subprogram_Declaration
and then Present (Corresponding_Body (Decl))
- and then
- Nkind
- (Unit_Declaration_Node
- (Corresponding_Body (Decl))) =
+ and then Nkind (Unit_Declaration_Node
+ (Corresponding_Body (Decl))) =
N_Subprogram_Renaming_Declaration
then
Error_Msg_Sloc := Sloc (Def_Id);
- Error_Msg_NE ("cannot import&#," &
- " already completed by a renaming",
- N, Def_Id);
+ Error_Msg_NE
+ ("cannot import&, renaming already provided for " &
+ "declaration #", N, Def_Id);
end if;
end;
end if;
end loop;
- -- When the convention is Java, we also allow Import to be given
- -- for packages, exceptions, and record components.
+ -- When the convention is Java or CIL, we also allow Import to be
+ -- given for packages, generic packages, exceptions, and record
+ -- components.
- elsif C = Convention_Java
+ elsif (C = Convention_Java or else C = Convention_CIL)
and then
- (Ekind (Def_Id) = E_Package
+ (Is_Package_Or_Generic_Package (Def_Id)
or else Ekind (Def_Id) = E_Exception
or else Nkind (Parent (Def_Id)) = N_Component_Declaration)
then
Set_Is_Public (Def_Id);
Process_Interface_Name (Def_Id, Arg3, Arg4);
+ -- Import a CPP class
+
+ elsif Is_Record_Type (Def_Id)
+ and then C = Convention_CPP
+ then
+ if not Is_Tagged_Type (Def_Id) then
+ Error_Msg_Sloc := Sloc (Def_Id);
+ Error_Pragma_Arg ("imported 'C'P'P type must be tagged", Arg2);
+
+ else
+ -- Types treated as CPP classes are treated as limited, but we
+ -- don't require them to be declared this way. A warning is
+ -- issued to encourage the user to declare them as limited.
+ -- This is not an error, for compatibility reasons, because
+ -- these types have been supported this way for some time.
+
+ if not Is_Limited_Type (Def_Id) then
+ Error_Msg_N
+ ("imported 'C'P'P type should be " &
+ "explicitly declared limited?",
+ Get_Pragma_Arg (Arg2));
+ Error_Msg_N
+ ("\type will be considered limited",
+ Get_Pragma_Arg (Arg2));
+ end if;
+
+ Set_Is_CPP_Class (Def_Id);
+ Set_Is_Limited_Record (Def_Id);
+ end if;
+
else
Error_Pragma_Arg
("second argument of pragma% must be object or subprogram",
-- corresponding body, if there is one present.
procedure Set_Inline_Flags (Subp : Entity_Id);
- -- Sets Is_Inlined and Has_Pragma_Inline flags for Subp
-
- function Cannot_Inline (Subp : Entity_Id) return Boolean;
- -- Do not set the inline flag if body is available and contains
- -- exception handlers, to prevent undefined symbols at link time.
- -- Emit warning if front-end inlining is enabled and the pragma
- -- appears too late.
+ -- Sets Is_Inlined and Has_Pragma_Inline flags for Subp and also
+ -- Has_Pragma_Inline_Always for the Inline_Always case.
+
+ function Inlining_Not_Possible (Subp : Entity_Id) return Boolean;
+ -- Returns True if it can be determined at this stage that inlining
+ -- is not possible, for example if the body is available and contains
+ -- exception handlers, we prevent inlining, since otherwise we can
+ -- get undefined symbols at link time. This function also emits a
+ -- warning if front-end inlining is enabled and the pragma appears
+ -- too late.
+ --
+ -- ??? is business with link symbols still valid, or does it relate
+ -- to front end ZCX which is being phased out ???
- -------------------
- -- Cannot_Inline --
- -------------------
+ ---------------------------
+ -- Inlining_Not_Possible --
+ ---------------------------
- function Cannot_Inline (Subp : Entity_Id) return Boolean is
- Decl : constant Node_Id := Unit_Declaration_Node (Subp);
+ function Inlining_Not_Possible (Subp : Entity_Id) return Boolean is
+ Decl : constant Node_Id := Unit_Declaration_Node (Subp);
+ Stats : Node_Id;
begin
if Nkind (Decl) = N_Subprogram_Body then
- return
- Present
- (Exception_Handlers (Handled_Statement_Sequence (Decl)));
+ Stats := Handled_Statement_Sequence (Decl);
+ return Present (Exception_Handlers (Stats))
+ or else Present (At_End_Proc (Stats));
elsif Nkind (Decl) = N_Subprogram_Declaration
and then Present (Corresponding_Body (Decl))
-- trivially possible.
elsif
- Nkind (Unit_Declaration_Node (Corresponding_Body (Decl)))
- = N_Subprogram_Renaming_Declaration
+ Nkind (Unit_Declaration_Node (Corresponding_Body (Decl))) =
+ N_Subprogram_Renaming_Declaration
then
return False;
else
+ Stats :=
+ Handled_Statement_Sequence
+ (Unit_Declaration_Node (Corresponding_Body (Decl)));
+
return
- Present (Exception_Handlers
- (Handled_Statement_Sequence
- (Unit_Declaration_Node (Corresponding_Body (Decl)))));
+ Present (Exception_Handlers (Stats))
+ or else Present (At_End_Proc (Stats));
end if;
+
else
-- If body is not available, assume the best, the check is
-- performed again when compiling enclosing package bodies.
return False;
end if;
- end Cannot_Inline;
+ end Inlining_Not_Possible;
-----------------
-- Make_Inline --
Inner_Subp : Entity_Id := Subp;
begin
+ -- Ignore if bad type, avoid cascaded error
+
if Etype (Subp) = Any_Type then
+ Applies := True;
+ return;
+
+ -- Ignore if all inlining is suppressed
+
+ elsif Suppress_All_Inlining then
+ Applies := True;
return;
- elsif Cannot_Inline (Subp) then
- Applies := True; -- Do not treat as an error.
+ -- If inlining is not possible, for now do not treat as an error
+
+ elsif Inlining_Not_Possible (Subp) then
+ Applies := True;
return;
-- Here we have a candidate for inlining, but we must exclude
- -- derived operations. Otherwise we will end up trying to
- -- inline a phantom declaration, and the result would be to
- -- drag in a body which has no direct inlining associated with
- -- it. That would not only be inefficient but would also result
- -- in the backend doing cross-unit inlining in cases where it
- -- was definitely inappropriate to do so.
-
- -- However, a simple Comes_From_Source test is insufficient,
- -- since we do want to allow inlining of generic instances,
- -- which also do not come from source. Predefined operators do
- -- not come from source but are not inlineable either.
+ -- derived operations. Otherwise we would end up trying to inline
+ -- a phantom declaration, and the result would be to drag in a
+ -- body which has no direct inlining associated with it. That
+ -- would not only be inefficient but would also result in the
+ -- backend doing cross-unit inlining in cases where it was
+ -- definitely inappropriate to do so.
+
+ -- However, a simple Comes_From_Source test is insufficient, since
+ -- we do want to allow inlining of generic instances which also do
+ -- not come from source. We also need to recognize specs
+ -- generated by the front-end for bodies that carry the pragma.
+ -- Finally, predefined operators do not come from source but are
+ -- not inlineable either.
+
+ elsif Is_Generic_Instance (Subp)
+ or else Nkind (Parent (Parent (Subp))) = N_Subprogram_Declaration
+ then
+ null;
elsif not Comes_From_Source (Subp)
- and then not Is_Generic_Instance (Subp)
and then Scope (Subp) /= Standard_Standard
then
Applies := True;
return;
+ end if;
-- The referenced entity must either be the enclosing entity,
-- or an entity declared within the current open scope.
- elsif Present (Scope (Subp))
+ if Present (Scope (Subp))
and then Scope (Subp) /= Current_Scope
and then Subp /= Current_Scope
then
and then Present (Corresponding_Body (Decl))
then
Set_Inline_Flags (Corresponding_Body (Decl));
+
+ elsif Is_Generic_Instance (Subp) then
+
+ -- Indicate that the body needs to be created for
+ -- inlining subsequent calls. The instantiation
+ -- node follows the declaration of the wrapper
+ -- package created for it.
+
+ if Scope (Subp) /= Standard_Standard
+ and then
+ Need_Subprogram_Instance_Body
+ (Next (Unit_Declaration_Node (Scope (Alias (Subp)))),
+ Subp)
+ then
+ null;
+ end if;
end if;
end if;
if not Has_Pragma_Inline (Subp) then
Set_Has_Pragma_Inline (Subp);
- Set_Next_Rep_Item (N, First_Rep_Item (Subp));
- Set_First_Rep_Item (Subp, N);
Effective := True;
end if;
+
+ if Prag_Id = Pragma_Inline_Always then
+ Set_Has_Pragma_Inline_Always (Subp);
+ end if;
end Set_Inline_Flags;
-- Start of processing for Process_Inline
Subp := Entity (Subp_Id);
if Subp = Any_Id then
+
+ -- If previous error, avoid cascaded errors
+
Applies := True;
+ Effective := True;
else
Make_Inline (Subp);
elsif not Effective
and then Warn_On_Redundant_Constructs
+ and then not Suppress_All_Inlining
then
- Error_Msg_NE ("pragma inline on& is redundant?",
- N, Entity (Subp_Id));
+ if Inlining_Not_Possible (Subp) then
+ Error_Msg_NE
+ ("pragma Inline for& is ignored?", N, Entity (Subp_Id));
+ else
+ Error_Msg_NE
+ ("pragma Inline for& is redundant?", N, Entity (Subp_Id));
+ end if;
end if;
Next (Assoc);
Link_Nam : Node_Id;
String_Val : String_Id;
- procedure Check_Form_Of_Interface_Name (SN : Node_Id);
+ procedure Check_Form_Of_Interface_Name
+ (SN : Node_Id;
+ Ext_Name_Case : Boolean);
-- SN is a string literal node for an interface name. This routine
-- performs some minimal checks that the name is reasonable. In
-- particular that no spaces or other obviously incorrect characters
-- appear. This is only a warning, since any characters are allowed.
+ -- Ext_Name_Case is True for an External_Name, False for a Link_Name.
+
+ ----------------------------------
+ -- Check_Form_Of_Interface_Name --
+ ----------------------------------
- procedure Check_Form_Of_Interface_Name (SN : Node_Id) is
+ procedure Check_Form_Of_Interface_Name
+ (SN : Node_Id;
+ Ext_Name_Case : Boolean)
+ is
S : constant String_Id := Strval (Expr_Value_S (SN));
SL : constant Nat := String_Length (S);
C : Char_Code;
for J in 1 .. SL loop
C := Get_String_Char (S, J);
- if Warn_On_Export_Import
- and then (not In_Character_Range (C)
- or else Get_Character (C) = ' '
- or else Get_Character (C) = ',')
+ -- Look for dubious character and issue unconditional warning.
+ -- Definitely dubious if not in character range.
+
+ if not In_Character_Range (C)
+
+ -- For all cases except external names on CLI target,
+ -- commas, spaces and slashes are dubious (in CLI, we use
+ -- spaces and commas in external names to specify assembly
+ -- version and public key).
+
+ or else ((not Ext_Name_Case or else VM_Target /= CLI_Target)
+ and then (Get_Character (C) = ' '
+ or else
+ Get_Character (C) = ','
+ or else
+ Get_Character (C) = '/'
+ or else
+ Get_Character (C) = '\'))
then
- Error_Msg_N
- ("?interface name contains illegal character", SN);
+ Error_Msg
+ ("?interface name contains illegal character",
+ Sloc (SN) + Source_Ptr (J));
end if;
end loop;
end Check_Form_Of_Interface_Name;
begin
if No (Link_Arg) then
if No (Ext_Arg) then
+ if VM_Target = CLI_Target
+ and then Ekind (Subprogram_Def) = E_Package
+ and then Nkind (Parent (Subprogram_Def)) =
+ N_Package_Specification
+ and then Present (Generic_Parent (Parent (Subprogram_Def)))
+ then
+ Set_Interface_Name
+ (Subprogram_Def,
+ Interface_Name
+ (Generic_Parent (Parent (Subprogram_Def))));
+ end if;
+
return;
elsif Chars (Ext_Arg) = Name_Link_Name then
if Present (Ext_Nam) then
Check_Arg_Is_Static_Expression (Ext_Nam, Standard_String);
- Check_Form_Of_Interface_Name (Ext_Nam);
+ Check_Form_Of_Interface_Name (Ext_Nam, Ext_Name_Case => True);
- -- Verify that the external name is not the name of a local
- -- entity, which would hide the imported one and lead to
- -- run-time surprises. The problem can only arise for entities
- -- declared in a package body (otherwise the external name is
- -- fully qualified and won't conflict).
+ -- Verify that external name is not the name of a local entity,
+ -- which would hide the imported one and could lead to run-time
+ -- surprises. The problem can only arise for entities declared in
+ -- a package body (otherwise the external name is fully qualified
+ -- and will not conflict).
declare
Nam : Name_Id;
and then Ekind (Scope (E)) = E_Package
then
Par := Parent (E);
-
while Present (Par) loop
if Nkind (Par) = N_Package_Body then
- Error_Msg_Sloc := Sloc (E);
+ Error_Msg_Sloc := Sloc (E);
Error_Msg_NE
("imported entity is hidden by & declared#",
- Ext_Arg, E);
+ Ext_Arg, E);
exit;
end if;
if Present (Link_Nam) then
Check_Arg_Is_Static_Expression (Link_Nam, Standard_String);
- Check_Form_Of_Interface_Name (Link_Nam);
+ Check_Form_Of_Interface_Name (Link_Nam, Ext_Name_Case => False);
end if;
-- If there is no link name, just set the external name
if No (Link_Nam) then
- Set_Encoded_Interface_Name
- (Get_Base_Subprogram (Subprogram_Def),
- Adjust_External_Name_Case (Expr_Value_S (Ext_Nam)));
+ Link_Nam := Adjust_External_Name_Case (Expr_Value_S (Ext_Nam));
-- For the Link_Name case, the given literal is preceded by an
-- asterisk, which indicates to GCC that the given name should
else
Start_String;
- Store_String_Char (Get_Char_Code ('*'));
- String_Val := Strval (Expr_Value_S (Link_Nam));
- for J in 1 .. String_Length (String_Val) loop
- Store_String_Char (Get_String_Char (String_Val, J));
- end loop;
+ if VM_Target = No_VM then
+ Store_String_Char (Get_Char_Code ('*'));
+ end if;
+ String_Val := Strval (Expr_Value_S (Link_Nam));
+ Store_String_Chars (String_Val);
Link_Nam :=
- Make_String_Literal (Sloc (Link_Nam), End_String);
-
- Set_Encoded_Interface_Name
- (Get_Base_Subprogram (Subprogram_Def), Link_Nam);
+ Make_String_Literal (Sloc (Link_Nam),
+ Strval => End_String);
end if;
+
+ Set_Encoded_Interface_Name
+ (Get_Base_Subprogram (Subprogram_Def), Link_Nam);
+ Check_Duplicated_Export_Name (Link_Nam);
end Process_Interface_Name;
-----------------------------------------
-- Process_Restrictions_Or_Restriction_Warnings --
--------------------------------------------------
- procedure Process_Restrictions_Or_Restriction_Warnings is
+ -- Note: some of the simple identifier cases were handled in par-prag,
+ -- but it is harmless (and more straightforward) to simply handle all
+ -- cases here, even if it means we repeat a bit of work in some cases.
+
+ procedure Process_Restrictions_Or_Restriction_Warnings
+ (Warn : Boolean)
+ is
Arg : Node_Id;
R_Id : Restriction_Id;
Id : Name_Id;
Expr : Node_Id;
Val : Uint;
- procedure Set_Warning (R : All_Restrictions);
- -- If this is a Restriction_Warnings pragma, set warning flag
+ procedure Check_Unit_Name (N : Node_Id);
+ -- Checks unit name parameter for No_Dependence. Returns if it has
+ -- an appropriate form, otherwise raises pragma argument error.
- -----------------
- -- Set_Warning --
- -----------------
+ ---------------------
+ -- Check_Unit_Name --
+ ---------------------
- procedure Set_Warning (R : All_Restrictions) is
+ procedure Check_Unit_Name (N : Node_Id) is
begin
- if Prag_Id = Pragma_Restriction_Warnings then
- Restriction_Warnings (R) := True;
+ if Nkind (N) = N_Selected_Component then
+ Check_Unit_Name (Prefix (N));
+ Check_Unit_Name (Selector_Name (N));
+
+ elsif Nkind (N) = N_Identifier then
+ return;
+
+ else
+ Error_Pragma_Arg
+ ("wrong form for unit name for No_Dependence", N);
end if;
- end Set_Warning;
+ end Check_Unit_Name;
-- Start of processing for Process_Restrictions_Or_Restriction_Warnings
R_Id :=
Get_Restriction_Id
- (Process_Restriction_Synonyms (Chars (Expr)));
+ (Process_Restriction_Synonyms (Expr));
if R_Id not in All_Boolean_Restrictions then
- Error_Pragma_Arg
- ("invalid restriction identifier", Arg);
+ Error_Msg_Name_1 := Pname;
+ Error_Msg_N
+ ("invalid restriction identifier&", Get_Pragma_Arg (Arg));
+
+ -- Check for possible misspelling
+
+ for J in Restriction_Id loop
+ declare
+ Rnm : constant String := Restriction_Id'Image (J);
+
+ begin
+ Name_Buffer (1 .. Rnm'Length) := Rnm;
+ Name_Len := Rnm'Length;
+ Set_Casing (All_Lower_Case);
+
+ if Is_Bad_Spelling_Of (Chars (Expr), Name_Enter) then
+ Set_Casing
+ (Identifier_Casing (Current_Source_File));
+ Error_Msg_String (1 .. Rnm'Length) :=
+ Name_Buffer (1 .. Name_Len);
+ Error_Msg_Strlen := Rnm'Length;
+ Error_Msg_N
+ ("\possible misspelling of ""~""",
+ Get_Pragma_Arg (Arg));
+ exit;
+ end if;
+ end;
+ end loop;
+
+ raise Pragma_Exit;
end if;
if Implementation_Restriction (R_Id) then
- Check_Restriction
- (No_Implementation_Restrictions, Arg);
+ Check_Restriction (No_Implementation_Restrictions, Arg);
end if;
- Set_Restriction (R_Id, N);
- Set_Warning (R_Id);
+ -- If this is a warning, then set the warning unless we already
+ -- have a real restriction active (we never want a warning to
+ -- override a real restriction).
+
+ if Warn then
+ if not Restriction_Active (R_Id) then
+ Set_Restriction (R_Id, N);
+ Restriction_Warnings (R_Id) := True;
+ end if;
+
+ -- If real restriction case, then set it and make sure that the
+ -- restriction warning flag is off, since a real restriction
+ -- always overrides a warning.
+
+ else
+ Set_Restriction (R_Id, N);
+ Restriction_Warnings (R_Id) := False;
+ end if;
- -- A very special case that must be processed here:
- -- pragma Restrictions (No_Exceptions) turns off
- -- all run-time checking. This is a bit dubious in
- -- terms of the formal language definition, but it
- -- is what is intended by RM H.4(12).
+ -- A very special case that must be processed here: pragma
+ -- Restrictions (No_Exceptions) turns off all run-time
+ -- checking. This is a bit dubious in terms of the formal
+ -- language definition, but it is what is intended by RM
+ -- H.4(12). Restriction_Warnings never affects generated code
+ -- so this is done only in the real restriction case.
- if R_Id = No_Exceptions then
+ if R_Id = No_Exceptions and then not Warn then
Scope_Suppress := (others => True);
end if;
- -- Case of restriction identifier present
+ -- Case of No_Dependence => unit-name. Note that the parser
+ -- already made the necessary entry in the No_Dependence table.
+
+ elsif Id = Name_No_Dependence then
+ Check_Unit_Name (Expr);
+
+ -- All other cases of restriction identifier present
else
- R_Id := Get_Restriction_Id (Process_Restriction_Synonyms (Id));
+ R_Id := Get_Restriction_Id (Process_Restriction_Synonyms (Arg));
Analyze_And_Resolve (Expr, Any_Integer);
if R_Id not in All_Parameter_Restrictions then
then
Error_Pragma_Arg
("value must be non-negative integer", Arg);
+ end if;
- -- Restriction pragma is active
+ -- Restriction pragma is active
- else
- Val := Expr_Value (Expr);
+ Val := Expr_Value (Expr);
- if not UI_Is_In_Int_Range (Val) then
- Error_Pragma_Arg
- ("pragma ignored, value too large?", Arg);
- else
- Set_Restriction (R_Id, N, Integer (UI_To_Int (Val)));
- Set_Warning (R_Id);
+ if not UI_Is_In_Int_Range (Val) then
+ Error_Pragma_Arg
+ ("pragma ignored, value too large?", Arg);
+ end if;
+
+ -- Warning case. If the real restriction is active, then we
+ -- ignore the request, since warning never overrides a real
+ -- restriction. Otherwise we set the proper warning. Note that
+ -- this circuit sets the warning again if it is already set,
+ -- which is what we want, since the constant may have changed.
+
+ if Warn then
+ if not Restriction_Active (R_Id) then
+ Set_Restriction
+ (R_Id, N, Integer (UI_To_Int (Val)));
+ Restriction_Warnings (R_Id) := True;
end if;
+
+ -- Real restriction case, set restriction and make sure warning
+ -- flag is off since real restriction always overrides warning.
+
+ else
+ Set_Restriction (R_Id, N, Integer (UI_To_Int (Val)));
+ Restriction_Warnings (R_Id) := False;
end if;
end if;
E : Entity_Id;
In_Package_Spec : constant Boolean :=
- (Ekind (Current_Scope) = E_Package
- or else
- Ekind (Current_Scope) = E_Generic_Package)
+ Is_Package_Or_Generic_Package (Current_Scope)
and then not In_Package_Body (Current_Scope);
procedure Suppress_Unsuppress_Echeck (E : Entity_Id; C : Check_Id);
--------------------------------
procedure Suppress_Unsuppress_Echeck (E : Entity_Id; C : Check_Id) is
- ESR : constant Entity_Check_Suppress_Record :=
- (Entity => E,
- Check => C,
- Suppress => Suppress_Case);
-
begin
Set_Checks_May_Be_Suppressed (E);
if In_Package_Spec then
- Global_Entity_Suppress.Append (ESR);
+ Push_Global_Suppress_Stack_Entry
+ (Entity => E,
+ Check => C,
+ Suppress => Suppress_Case);
+
else
- Local_Entity_Suppress.Append (ESR);
+ Push_Local_Suppress_Stack_Entry
+ (Entity => E,
+ Check => C,
+ Suppress => Suppress_Case);
end if;
-- If this is a first subtype, and the base type is distinct,
Check_No_Identifier (Arg1);
Check_Arg_Is_Identifier (Arg1);
- if not Is_Check_Name (Chars (Expression (Arg1))) then
+ C := Get_Check_Id (Chars (Expression (Arg1)));
+
+ if C = No_Check_Id then
Error_Pragma_Arg
("argument of pragma% is not valid check name", Arg1);
- else
- C := Get_Check_Id (Chars (Expression (Arg1)));
+ end if;
+
+ if not Suppress_Case
+ and then (C = All_Checks or else C = Overflow_Check)
+ then
+ Opt.Overflow_Checks_Unsuppressed := True;
end if;
if Arg_Count = 1 then
-- suppress check for any check id value.
if C = All_Checks then
+
+ -- For All_Checks, we set all specific predefined checks with
+ -- the exception of Elaboration_Check, which is handled
+ -- specially because of not wanting All_Checks to have the
+ -- effect of deactivating static elaboration order processing.
+
for J in Scope_Suppress'Range loop
- Scope_Suppress (J) := Suppress_Case;
+ if J /= Elaboration_Check then
+ Scope_Suppress (J) := Suppress_Case;
+ end if;
end loop;
- else
+
+ -- If not All_Checks, and predefined check, then set appropriate
+ -- scope entry. Note that we will set Elaboration_Check if this
+ -- is explicitly specified.
+
+ elsif C in Predefined_Check_Id then
Scope_Suppress (C) := Suppress_Case;
end if;
- -- Also make an entry in the Local_Entity_Suppress table. See
- -- extended description in the package spec of Sem for details.
+ -- Also make an entry in the Local_Entity_Suppress table
- Local_Entity_Suppress.Append
- ((Entity => Empty,
- Check => C,
- Suppress => Suppress_Case));
+ Push_Local_Suppress_Stack_Entry
+ (Entity => Empty,
+ Check => C,
+ Suppress => Suppress_Case);
- -- Case of two arguments present, where the check is
- -- suppressed for a specified entity (given as the second
- -- argument of the pragma)
+ -- Case of two arguments present, where the check is suppressed for
+ -- a specified entity (given as the second argument of the pragma)
else
Check_Optional_Identifier (Arg2, Name_On);
and then Scope (E) /= Current_Scope
then
Error_Pragma_Arg
- ("entity in pragma% is not in package spec ('R'M 11.5(7))",
+ ("entity in pragma% is not in package spec (RM 11.5(7))",
Arg2);
end if;
begin
if No (Arg_External) then
return;
+ end if;
+
+ Check_Arg_Is_External_Name (Arg_External);
- elsif Nkind (Arg_External) = N_String_Literal then
+ if Nkind (Arg_External) = N_String_Literal then
if String_Length (Strval (Arg_External)) = 0 then
return;
else
elsif Nkind (Arg_External) = N_Identifier then
New_Name := Get_Default_External_Name (Arg_External);
+ -- Check_Arg_Is_External_Name should let through only
+ -- identifiers and string literals or static string
+ -- expressions (which are folded to string literals).
+
else
- Error_Pragma_Arg
- ("incorrect form for External parameter for pragma%",
- Arg_External);
+ raise Program_Error;
end if;
-- If we already have an external name set (by a prior normal
-- Import or Export pragma), then the external names must match
if Present (Interface_Name (Internal_Ent)) then
- declare
+ Check_Matching_Internal_Names : declare
S1 : constant String_Id := Strval (Old_Name);
S2 : constant String_Id := Strval (New_Name);
procedure Mismatch;
-- Called if names do not match
+ --------------
+ -- Mismatch --
+ --------------
+
procedure Mismatch is
begin
Error_Msg_Sloc := Sloc (Old_Name);
Arg_External);
end Mismatch;
+ -- Start of processing for Check_Matching_Internal_Names
+
begin
if String_Length (S1) /= String_Length (S2) then
Mismatch;
end if;
end loop;
end if;
- end;
+ end Check_Matching_Internal_Names;
-- Otherwise set the given name
else
Set_Encoded_Interface_Name (Internal_Ent, New_Name);
+ Check_Duplicated_Export_Name (New_Name);
end if;
-
end Set_Extended_Import_Export_External_Name;
------------------
procedure Set_Imported (E : Entity_Id) is
begin
- Error_Msg_Sloc := Sloc (E);
+ -- Error message if already imported or exported
if Is_Exported (E) or else Is_Imported (E) then
- Error_Msg_NE ("import of& declared# not allowed", N, E);
-
if Is_Exported (E) then
- Error_Msg_N ("\entity was previously exported", N);
+ Error_Msg_NE ("entity& was previously exported", N, E);
else
- Error_Msg_N ("\entity was previously imported", N);
+ Error_Msg_NE ("entity& was previously imported", N, E);
end if;
- Error_Pragma ("\(pragma% applies to all previous entities)");
+ Error_Msg_Name_1 := Pname;
+ Error_Msg_N
+ ("\(pragma% applies to all previous entities)", N);
+
+ Error_Msg_Sloc := Sloc (E);
+ Error_Msg_NE ("\import not allowed for& declared#", N, E);
+
+ -- Here if not previously imported or exported, OK to import
else
Set_Is_Imported (E);
procedure Set_Mechanism_Value (Ent : Entity_Id; Mech_Name : Node_Id) is
Class : Node_Id;
Param : Node_Id;
+ Mech_Name_Id : Name_Id;
procedure Bad_Class;
-- Signal bad descriptor class name
procedure Bad_Mechanism;
-- Signal bad mechanism name
+ ---------------
+ -- Bad_Class --
+ ---------------
+
procedure Bad_Class is
begin
Error_Pragma_Arg ("unrecognized descriptor class name", Class);
end Bad_Class;
+ -------------------------
+ -- Bad_Mechanism_Value --
+ -------------------------
+
procedure Bad_Mechanism is
begin
Error_Pragma_Arg ("unrecognized mechanism name", Mech_Name);
("mechanism for & has already been set", Mech_Name, Ent);
end if;
- -- MECHANISM_NAME ::= value | reference | descriptor
+ -- MECHANISM_NAME ::= value | reference | descriptor |
+ -- short_descriptor
if Nkind (Mech_Name) = N_Identifier then
if Chars (Mech_Name) = Name_Value then
Set_Mechanism (Ent, By_Descriptor);
return;
+ elsif Chars (Mech_Name) = Name_Short_Descriptor then
+ Check_VMS (Mech_Name);
+ Set_Mechanism (Ent, By_Short_Descriptor);
+ return;
+
elsif Chars (Mech_Name) = Name_Copy then
Error_Pragma_Arg
("bad mechanism name, Value assumed", Mech_Name);
Bad_Mechanism;
end if;
- -- MECHANISM_NAME ::= descriptor (CLASS_NAME)
+ -- MECHANISM_NAME ::= descriptor (CLASS_NAME) |
+ -- short_descriptor (CLASS_NAME)
-- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca
-- Note: this form is parsed as an indexed component
elsif Nkind (Mech_Name) = N_Indexed_Component then
+
Class := First (Expressions (Mech_Name));
if Nkind (Prefix (Mech_Name)) /= N_Identifier
- or else Chars (Prefix (Mech_Name)) /= Name_Descriptor
- or else Present (Next (Class))
+ or else not (Chars (Prefix (Mech_Name)) = Name_Descriptor or else
+ Chars (Prefix (Mech_Name)) = Name_Short_Descriptor)
+ or else Present (Next (Class))
then
Bad_Mechanism;
+ else
+ Mech_Name_Id := Chars (Prefix (Mech_Name));
end if;
- -- MECHANISM_NAME ::= descriptor (Class => CLASS_NAME)
+ -- MECHANISM_NAME ::= descriptor (Class => CLASS_NAME) |
+ -- short_descriptor (Class => CLASS_NAME)
-- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca
-- Note: this form is parsed as a function call
Param := First (Parameter_Associations (Mech_Name));
if Nkind (Name (Mech_Name)) /= N_Identifier
- or else Chars (Name (Mech_Name)) /= Name_Descriptor
+ or else not (Chars (Name (Mech_Name)) = Name_Descriptor or else
+ Chars (Name (Mech_Name)) = Name_Short_Descriptor)
or else Present (Next (Param))
or else No (Selector_Name (Param))
or else Chars (Selector_Name (Param)) /= Name_Class
Bad_Mechanism;
else
Class := Explicit_Actual_Parameter (Param);
+ Mech_Name_Id := Chars (Name (Mech_Name));
end if;
else
if Nkind (Class) /= N_Identifier then
Bad_Class;
- elsif Chars (Class) = Name_UBS then
+ elsif Mech_Name_Id = Name_Descriptor
+ and then Chars (Class) = Name_UBS
+ then
Set_Mechanism (Ent, By_Descriptor_UBS);
- elsif Chars (Class) = Name_UBSB then
+ elsif Mech_Name_Id = Name_Descriptor
+ and then Chars (Class) = Name_UBSB
+ then
Set_Mechanism (Ent, By_Descriptor_UBSB);
- elsif Chars (Class) = Name_UBA then
+ elsif Mech_Name_Id = Name_Descriptor
+ and then Chars (Class) = Name_UBA
+ then
Set_Mechanism (Ent, By_Descriptor_UBA);
- elsif Chars (Class) = Name_S then
+ elsif Mech_Name_Id = Name_Descriptor
+ and then Chars (Class) = Name_S
+ then
Set_Mechanism (Ent, By_Descriptor_S);
- elsif Chars (Class) = Name_SB then
+ elsif Mech_Name_Id = Name_Descriptor
+ and then Chars (Class) = Name_SB
+ then
Set_Mechanism (Ent, By_Descriptor_SB);
- elsif Chars (Class) = Name_A then
+ elsif Mech_Name_Id = Name_Descriptor
+ and then Chars (Class) = Name_A
+ then
Set_Mechanism (Ent, By_Descriptor_A);
- elsif Chars (Class) = Name_NCA then
+ elsif Mech_Name_Id = Name_Descriptor
+ and then Chars (Class) = Name_NCA
+ then
Set_Mechanism (Ent, By_Descriptor_NCA);
+ elsif Mech_Name_Id = Name_Short_Descriptor
+ and then Chars (Class) = Name_UBS
+ then
+ Set_Mechanism (Ent, By_Short_Descriptor_UBS);
+
+ elsif Mech_Name_Id = Name_Short_Descriptor
+ and then Chars (Class) = Name_UBSB
+ then
+ Set_Mechanism (Ent, By_Short_Descriptor_UBSB);
+
+ elsif Mech_Name_Id = Name_Short_Descriptor
+ and then Chars (Class) = Name_UBA
+ then
+ Set_Mechanism (Ent, By_Short_Descriptor_UBA);
+
+ elsif Mech_Name_Id = Name_Short_Descriptor
+ and then Chars (Class) = Name_S
+ then
+ Set_Mechanism (Ent, By_Short_Descriptor_S);
+
+ elsif Mech_Name_Id = Name_Short_Descriptor
+ and then Chars (Class) = Name_SB
+ then
+ Set_Mechanism (Ent, By_Short_Descriptor_SB);
+
+ elsif Mech_Name_Id = Name_Short_Descriptor
+ and then Chars (Class) = Name_A
+ then
+ Set_Mechanism (Ent, By_Short_Descriptor_A);
+
+ elsif Mech_Name_Id = Name_Short_Descriptor
+ and then Chars (Class) = Name_NCA
+ then
+ Set_Mechanism (Ent, By_Short_Descriptor_NCA);
+
else
Bad_Class;
end if;
-
end Set_Mechanism_Value;
---------------------------
-- pragma Task_Dispatching_Policy (FIFO_Within_Priorities)
-- pragma Locking_Policy (Ceiling_Locking)
- -- Set Detect_Blocking mode ???
+ -- Set Detect_Blocking mode
- -- Set required restrictions (see Restrict.Set_Ravenscar for details)
+ -- Set required restrictions (see System.Rident for detailed list)
procedure Set_Ravenscar_Profile (N : Node_Id) is
begin
Error_Msg_Sloc := Task_Dispatching_Policy_Sloc;
Error_Pragma ("Profile (Ravenscar) incompatible with policy#");
- -- Set the FIFO_Within_Priorities policy, but always
- -- preserve System_Location since we like the error
- -- message with the run time name.
+ -- Set the FIFO_Within_Priorities policy, but always preserve
+ -- System_Location since we like the error message with the run time
+ -- name.
else
Task_Dispatching_Policy := 'F';
Error_Msg_Sloc := Locking_Policy_Sloc;
Error_Pragma ("Profile (Ravenscar) incompatible with policy#");
- -- Set the Ceiling_Locking policy, but always preserve
- -- System_Location since we like the error message with the
- -- run time name.
+ -- Set the Ceiling_Locking policy, but preserve System_Location since
+ -- we like the error message with the run time name.
else
Locking_Policy := 'C';
end if;
end if;
- -- ??? Detect_Blocking
+ -- pragma Detect_Blocking
+
+ Detect_Blocking := True;
-- Set the corresponding restrictions
- Set_Ravenscar (N);
+ Set_Profile_Restrictions
+ (Ravenscar, N, Warn => Treat_Restrictions_As_Warnings);
end Set_Ravenscar_Profile;
-- Start of processing for Analyze_Pragma
begin
- if not Is_Pragma_Name (Chars (N)) then
+ -- Deal with unrecognized pragma
+
+ if not Is_Pragma_Name (Pname) then
if Warn_On_Unrecognized_Pragma then
- Error_Pragma ("unrecognized pragma%!?");
- else
- raise Pragma_Exit;
+ Error_Msg_Name_1 := Pname;
+ Error_Msg_N ("?unrecognized pragma%!", Pragma_Identifier (N));
+
+ for PN in First_Pragma_Name .. Last_Pragma_Name loop
+ if Is_Bad_Spelling_Of (Pname, PN) then
+ Error_Msg_Name_1 := PN;
+ Error_Msg_N
+ ("\?possible misspelling of %!", Pragma_Identifier (N));
+ exit;
+ end if;
+ end loop;
end if;
- else
- Prag_Id := Get_Pragma_Id (Chars (N));
+
+ return;
end if;
+ -- Here to start processing for recognized pragma
+
+ Prag_Id := Get_Pragma_Id (Pname);
+
-- Preset arguments
Arg1 := Empty;
end;
-- An enumeration type defines the pragmas that are supported by the
- -- implementation. Get_Pragma_Id (in package Prag) transorms a name
+ -- implementation. Get_Pragma_Id (in package Prag) transforms a name
-- into the corresponding enumeration value for the following case.
case Prag_Id is
when Pragma_Ada_83 =>
GNAT_Pragma;
- Ada_Version := Ada_83;
Check_Arg_Count (0);
+ -- We really should check unconditionally for proper configuration
+ -- pragma placement, since we really don't want mixed Ada modes
+ -- within a single unit, and the GNAT reference manual has always
+ -- said this was a configuration pragma, but we did not check and
+ -- are hesitant to add the check now.
+
+ -- However, we really cannot tolerate mixing Ada 2005 with Ada 83
+ -- or Ada 95, so we must check if we are in Ada 2005 mode.
+
+ if Ada_Version >= Ada_05 then
+ Check_Valid_Configuration_Pragma;
+ end if;
+
+ -- Now set Ada 83 mode
+
+ Ada_Version := Ada_83;
+ Ada_Version_Explicit := Ada_Version;
+
------------
-- Ada_95 --
------------
when Pragma_Ada_95 =>
GNAT_Pragma;
- Ada_Version := Ada_95;
Check_Arg_Count (0);
- ------------
- -- Ada_05 --
- ------------
+ -- We really should check unconditionally for proper configuration
+ -- pragma placement, since we really don't want mixed Ada modes
+ -- within a single unit, and the GNAT reference manual has always
+ -- said this was a configuration pragma, but we did not check and
+ -- are hesitant to add the check now.
- -- pragma Ada_05;
+ -- However, we really cannot tolerate mixing Ada 2005 with Ada 83
+ -- or Ada 95, so we must check if we are in Ada 2005 mode.
- -- Note: this pragma also has some specific processing in Par.Prag
- -- because we want to set the Ada 83 version mode during parsing.
+ if Ada_Version >= Ada_05 then
+ Check_Valid_Configuration_Pragma;
+ end if;
- when Pragma_Ada_05 =>
- GNAT_Pragma;
- Ada_Version := Ada_05;
- Check_Arg_Count (0);
+ -- Now set Ada 95 mode
- ----------------------
- -- All_Calls_Remote --
- ----------------------
+ Ada_Version := Ada_95;
+ Ada_Version_Explicit := Ada_Version;
- -- pragma All_Calls_Remote [(library_package_NAME)];
+ ---------------------
+ -- Ada_05/Ada_2005 --
+ ---------------------
+
+ -- pragma Ada_05;
+ -- pragma Ada_05 (LOCAL_NAME);
+
+ -- pragma Ada_2005;
+ -- pragma Ada_2005 (LOCAL_NAME):
+
+ -- Note: these pragma also have some specific processing in Par.Prag
+ -- because we want to set the Ada 2005 version mode during parsing.
+
+ when Pragma_Ada_05 | Pragma_Ada_2005 => declare
+ E_Id : Node_Id;
+
+ begin
+ GNAT_Pragma;
+
+ if Arg_Count = 1 then
+ Check_Arg_Is_Local_Name (Arg1);
+ E_Id := Expression (Arg1);
+
+ if Etype (E_Id) = Any_Type then
+ return;
+ end if;
+
+ Set_Is_Ada_2005_Only (Entity (E_Id));
+
+ else
+ Check_Arg_Count (0);
+
+ -- For Ada_2005 we unconditionally enforce the documented
+ -- configuration pragma placement, since we do not want to
+ -- tolerate mixed modes in a unit involving Ada 2005. That
+ -- would cause real difficulties for those cases where there
+ -- are incompatibilities between Ada 95 and Ada 2005.
+
+ Check_Valid_Configuration_Pragma;
+
+ -- Now set Ada 2005 mode
+
+ Ada_Version := Ada_05;
+ Ada_Version_Explicit := Ada_05;
+ end if;
+ end;
+
+ ----------------------
+ -- All_Calls_Remote --
+ ----------------------
+
+ -- pragma All_Calls_Remote [(library_package_NAME)];
when Pragma_All_Calls_Remote => All_Calls_Remote : declare
Lib_Entity : Entity_Id;
Lib_Entity := Find_Lib_Unit_Name;
- -- This pragma should only apply to a RCI unit (RM E.2.3(23)).
+ -- This pragma should only apply to a RCI unit (RM E.2.3(23))
if Present (Lib_Entity)
and then not Debug_Flag_U
Check_Arg_Is_Identifier (Arg1);
declare
- Arg : Node_Id := Arg2;
+ Arg : Node_Id;
Exp : Node_Id;
begin
+ Arg := Arg2;
while Present (Arg) loop
Exp := Expression (Arg);
Analyze (Exp);
-- Assert --
------------
- -- pragma Assert (Boolean_EXPRESSION [, static_string_EXPRESSION]);
+ -- pragma Assert ([Check =>] Boolean_EXPRESSION
+ -- [, [Message =>] Static_String_EXPRESSION]);
- when Pragma_Assert =>
- GNAT_Pragma;
- Check_No_Identifiers;
+ when Pragma_Assert => Assert : declare
+ Expr : Node_Id;
+ Newa : List_Id;
+
+ begin
+ Ada_2005_Pragma;
+ Check_At_Least_N_Arguments (1);
+ Check_At_Most_N_Arguments (2);
+ Check_Arg_Order ((Name_Check, Name_Message));
+ Check_Optional_Identifier (Arg1, Name_Check);
+
+ -- We treat pragma Assert as equivalent to:
+
+ -- pragma Check (Assertion, condition [, msg]);
+
+ -- So rewrite pragma in this manner, and analyze the result
+
+ Expr := Get_Pragma_Arg (Arg1);
+ Newa := New_List (
+ Make_Pragma_Argument_Association (Loc,
+ Expression =>
+ Make_Identifier (Loc,
+ Chars => Name_Assertion)),
+
+ Make_Pragma_Argument_Association (Sloc (Expr),
+ Expression => Expr));
if Arg_Count > 1 then
- Check_Arg_Count (2);
- Check_Arg_Is_Static_Expression (Arg2, Standard_String);
+ Check_Optional_Identifier (Arg2, Name_Message);
+ Analyze_And_Resolve (Get_Pragma_Arg (Arg2), Standard_String);
+ Append_To (Newa, Relocate_Node (Arg2));
end if;
- -- If expansion is active and assertions are inactive, then
- -- we rewrite the Assertion as:
+ Rewrite (N,
+ Make_Pragma (Loc,
+ Chars => Name_Check,
+ Pragma_Argument_Associations => Newa));
+ Analyze (N);
+ end Assert;
- -- if False and then condition then
- -- null;
- -- end if;
+ ----------------------
+ -- Assertion_Policy --
+ ----------------------
- -- The reason we do this rewriting during semantic analysis
- -- rather than as part of normal expansion is that we cannot
- -- analyze and expand the code for the boolean expression
- -- directly, or it may cause insertion of actions that would
- -- escape the attempt to suppress the assertion code.
+ -- pragma Assertion_Policy (Check | Ignore)
- if Expander_Active and not Assertions_Enabled then
- Rewrite (N,
- Make_If_Statement (Loc,
- Condition =>
- Make_And_Then (Loc,
- Left_Opnd => New_Occurrence_Of (Standard_False, Loc),
- Right_Opnd => Get_Pragma_Arg (Arg1)),
- Then_Statements => New_List (
- Make_Null_Statement (Loc))));
+ when Pragma_Assertion_Policy => Assertion_Policy : declare
+ Policy : Node_Id;
- Analyze (N);
+ begin
+ Ada_2005_Pragma;
+ Check_Valid_Configuration_Pragma;
+ Check_Arg_Count (1);
+ Check_No_Identifiers;
+ Check_Arg_Is_One_Of (Arg1, Name_Check, Name_Ignore);
+
+ -- We treat pragma Assertion_Policy as equivalent to:
+
+ -- pragma Check_Policy (Assertion, policy)
+
+ -- So rewrite the pragma in that manner and link on to the chain
+ -- of Check_Policy pragmas, marking the pragma as analyzed.
+
+ Policy := Get_Pragma_Arg (Arg1);
+
+ Rewrite (N,
+ Make_Pragma (Loc,
+ Chars => Name_Check_Policy,
+
+ Pragma_Argument_Associations => New_List (
+ Make_Pragma_Argument_Association (Loc,
+ Expression =>
+ Make_Identifier (Loc,
+ Chars => Name_Assertion)),
+
+ Make_Pragma_Argument_Association (Loc,
+ Expression =>
+ Make_Identifier (Sloc (Policy),
+ Chars => Chars (Policy))))));
+
+ Set_Analyzed (N);
+ Set_Next_Pragma (N, Opt.Check_Policy_List);
+ Opt.Check_Policy_List := N;
+ end Assertion_Policy;
+
+ ------------------------------
+ -- Assume_No_Invalid_Values --
+ ------------------------------
+
+ -- pragma Assume_No_Invalid_Values (On | Off);
- -- Otherwise (if assertions are enabled, or if we are not
- -- operating with expansion active), then we just analyze
- -- and resolve the expression.
+ when Pragma_Assume_No_Invalid_Values =>
+ GNAT_Pragma;
+ Check_Valid_Configuration_Pragma;
+ Check_Arg_Count (1);
+ Check_No_Identifiers;
+ Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off);
+ if Chars (Expression (Arg1)) = Name_On then
+ Assume_No_Invalid_Values := True;
else
- Analyze_And_Resolve (Expression (Arg1), Any_Boolean);
+ Assume_No_Invalid_Values := False;
end if;
---------------
procedure Process_Async_Pragma is
begin
- if not Present (L) then
+ if No (L) then
Set_Is_Asynchronous (Nm);
return;
end if;
Error_Pragma_Arg
("pragma% cannot be applied to function", Arg1);
- elsif Ekind (Nm) = E_Record_Type
- and then Present (Corresponding_Remote_Type (Nm))
- then
- N := Declaration_Node (Corresponding_Remote_Type (Nm));
+ elsif Is_Remote_Access_To_Subprogram_Type (Nm) then
+
+ if Is_Record_Type (Nm) then
+ -- A record type that is the Equivalent_Type for
+ -- a remote access-to-subprogram type.
+
+ N := Declaration_Node (Corresponding_Remote_Type (Nm));
+
+ else
+ -- A non-expanded RAS type (case where distribution is
+ -- not enabled).
+
+ N := Declaration_Node (Nm);
+ end if;
if Nkind (N) = N_Full_Type_Declaration
and then Nkind (Type_Definition (N)) =
L := Parameter_Specifications (Type_Definition (N));
Process_Async_Pragma;
+ if Is_Asynchronous (Nm)
+ and then Expander_Active
+ and then Get_PCS_Name /= Name_No_DSA
+ then
+ RACW_Type_Is_Asynchronous (Underlying_RACW_Type (Nm));
+ end if;
+
else
Error_Pragma_Arg
("pragma% cannot reference access-to-function type",
New_Copy_Tree (Expression (Arg2));
begin
Set_Parent (Temp, N);
- Pre_Analyze_And_Resolve (Temp, RTE (RE_Interrupt_ID));
+ Preanalyze_And_Resolve (Temp, RTE (RE_Interrupt_ID));
end;
else
end if;
end C_Pass_By_Copy;
+ -----------
+ -- Check --
+ -----------
+
+ -- pragma Check ([Name =>] Identifier,
+ -- [Check =>] Boolean_Expression
+ -- [,[Message =>] String_Expression]);
+
+ when Pragma_Check => Check : declare
+ Expr : Node_Id;
+ Eloc : Source_Ptr;
+
+ Check_On : Boolean;
+ -- Set True if category of assertions referenced by Name enabled
+
+ begin
+ GNAT_Pragma;
+ Check_At_Least_N_Arguments (2);
+ Check_At_Most_N_Arguments (3);
+ Check_Optional_Identifier (Arg1, Name_Name);
+ Check_Optional_Identifier (Arg2, Name_Check);
+
+ if Arg_Count = 3 then
+ Check_Optional_Identifier (Arg3, Name_Message);
+ Analyze_And_Resolve (Get_Pragma_Arg (Arg3), Standard_String);
+ end if;
+
+ Check_Arg_Is_Identifier (Arg1);
+ Check_On := Check_Enabled (Chars (Get_Pragma_Arg (Arg1)));
+
+ -- If expansion is active and the check is not enabled then we
+ -- rewrite the Check as:
+
+ -- if False and then condition then
+ -- null;
+ -- end if;
+
+ -- The reason we do this rewriting during semantic analysis rather
+ -- than as part of normal expansion is that we cannot analyze and
+ -- expand the code for the boolean expression directly, or it may
+ -- cause insertion of actions that would escape the attempt to
+ -- suppress the check code.
+
+ -- Note that the Sloc for the if statement corresponds to the
+ -- argument condition, not the pragma itself. The reason for this
+ -- is that we may generate a warning if the condition is False at
+ -- compile time, and we do not want to delete this warning when we
+ -- delete the if statement.
+
+ Expr := Expression (Arg2);
+
+ if Expander_Active and then not Check_On then
+ Eloc := Sloc (Expr);
+
+ Rewrite (N,
+ Make_If_Statement (Eloc,
+ Condition =>
+ Make_And_Then (Eloc,
+ Left_Opnd => New_Occurrence_Of (Standard_False, Eloc),
+ Right_Opnd => Expr),
+ Then_Statements => New_List (
+ Make_Null_Statement (Eloc))));
+
+ Analyze (N);
+
+ -- Check is active
+
+ else
+ Analyze_And_Resolve (Expr, Any_Boolean);
+ end if;
+
+ -- If assertion is of the form (X'First = literal), where X is
+ -- a formal, then set Low_Bound_Known flag on this formal.
+
+ if Nkind (Expr) = N_Op_Eq then
+ declare
+ Right : constant Node_Id := Right_Opnd (Expr);
+ Left : constant Node_Id := Left_Opnd (Expr);
+ begin
+ if Nkind (Left) = N_Attribute_Reference
+ and then Attribute_Name (Left) = Name_First
+ and then Is_Entity_Name (Prefix (Left))
+ and then Is_Formal (Entity (Prefix (Left)))
+ and then Nkind (Right) = N_Integer_Literal
+ then
+ Set_Low_Bound_Known (Entity (Prefix (Left)));
+ end if;
+ end;
+ end if;
+ end Check;
+
+ ----------------
+ -- Check_Name --
+ ----------------
+
+ -- pragma Check_Name (check_IDENTIFIER);
+
+ when Pragma_Check_Name =>
+ Check_No_Identifiers;
+ GNAT_Pragma;
+ Check_Valid_Configuration_Pragma;
+ Check_Arg_Count (1);
+ Check_Arg_Is_Identifier (Arg1);
+
+ declare
+ Nam : constant Name_Id := Chars (Expression (Arg1));
+
+ begin
+ for J in Check_Names.First .. Check_Names.Last loop
+ if Check_Names.Table (J) = Nam then
+ return;
+ end if;
+ end loop;
+
+ Check_Names.Append (Nam);
+ end;
+
+ ------------------
+ -- Check_Policy --
+ ------------------
+
+ -- pragma Check_Policy ([Name =>] IDENTIFIER,
+ -- POLICY_IDENTIFIER;
+
+ -- POLICY_IDENTIFIER ::= ON | OFF | CHECK | IGNORE
+
+ -- Note: this is a configuration pragma, but it is allowed to
+ -- appear anywhere else.
+
+ when Pragma_Check_Policy =>
+ GNAT_Pragma;
+ Check_Arg_Count (2);
+ Check_No_Identifier (Arg2);
+ Check_Optional_Identifier (Arg1, Name_Name);
+ Check_Arg_Is_One_Of
+ (Arg2, Name_On, Name_Off, Name_Check, Name_Ignore);
+
+ -- A Check_Policy pragma can appear either as a configuration
+ -- pragma, or in a declarative part or a package spec (see RM
+ -- 11.5(5) for rules for Suppress/Unsuppress which are also
+ -- followed for Check_Policy).
+
+ if not Is_Configuration_Pragma then
+ Check_Is_In_Decl_Part_Or_Package_Spec;
+ end if;
+
+ Set_Next_Pragma (N, Opt.Check_Policy_List);
+ Opt.Check_Policy_List := N;
+
+ ---------------------
+ -- CIL_Constructor --
+ ---------------------
+
+ -- pragma CIL_Constructor ([Entity =>] LOCAL_NAME);
+
+ -- Processing for this pragma is shared with Java_Constructor
+
-------------
-- Comment --
-------------
-- pragma Comment (static_string_EXPRESSION)
- -- Processing for pragma Comment shares the circuitry for
- -- pragma Ident. The only differences are that Ident enforces
- -- a limit of 31 characters on its argument, and also enforces
- -- limitations on placement for DEC compatibility. Pragma
- -- Comment shares neither of these restrictions.
+ -- Processing for pragma Comment shares the circuitry for pragma
+ -- Ident. The only differences are that Ident enforces a limit of 31
+ -- characters on its argument, and also enforces limitations on
+ -- placement for DEC compatibility. Pragma Comment shares neither of
+ -- these restrictions.
-------------------
-- Common_Object --
-------------------
-- pragma Common_Object (
- -- [Internal =>] LOCAL_NAME,
+ -- [Internal =>] LOCAL_NAME
-- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Size =>] EXTERNAL_SYMBOL]);
-- Processing for this pragma is shared with Psect_Object
+ ------------------------
+ -- Compile_Time_Error --
+ ------------------------
+
+ -- pragma Compile_Time_Error
+ -- (boolean_EXPRESSION, static_string_EXPRESSION);
+
+ when Pragma_Compile_Time_Error =>
+ GNAT_Pragma;
+ Process_Compile_Time_Warning_Or_Error;
+
--------------------------
-- Compile_Time_Warning --
--------------------------
-- pragma Compile_Time_Warning
-- (boolean_EXPRESSION, static_string_EXPRESSION);
- when Pragma_Compile_Time_Warning => Compile_Time_Warning : declare
- Arg1x : constant Node_Id := Get_Pragma_Arg (Arg1);
-
- begin
+ when Pragma_Compile_Time_Warning =>
GNAT_Pragma;
- Check_Arg_Count (2);
- Check_No_Identifiers;
- Check_Arg_Is_Static_Expression (Arg2, Standard_String);
- Analyze_And_Resolve (Arg1x, Standard_Boolean);
+ Process_Compile_Time_Warning_Or_Error;
- if Compile_Time_Known_Value (Arg1x) then
- if Is_True (Expr_Value (Get_Pragma_Arg (Arg1))) then
- String_To_Name_Buffer (Strval (Get_Pragma_Arg (Arg2)));
- Add_Char_To_Name_Buffer ('?');
+ -------------------
+ -- Compiler_Unit --
+ -------------------
- declare
- Msg : String (1 .. Name_Len) :=
- Name_Buffer (1 .. Name_Len);
+ when Pragma_Compiler_Unit =>
+ GNAT_Pragma;
+ Check_Arg_Count (0);
+ Set_Is_Compiler_Unit (Get_Source_Unit (N));
- B : Natural;
+ -----------------------------
+ -- Complete_Representation --
+ -----------------------------
- begin
- -- This loop looks for multiple lines separated by
- -- ASCII.LF and breaks them into continuation error
- -- messages marked with the usual back slash.
-
- B := 1;
- for S in 2 .. Msg'Length - 1 loop
- if Msg (S) = ASCII.LF then
- Msg (S) := '?';
- Error_Msg_N (Msg (B .. S), Arg1);
- B := S;
- Msg (B) := '\';
- end if;
- end loop;
+ -- pragma Complete_Representation;
- Error_Msg_N (Msg (B .. Msg'Length), Arg1);
- end;
- end if;
+ when Pragma_Complete_Representation =>
+ GNAT_Pragma;
+ Check_Arg_Count (0);
+
+ if Nkind (Parent (N)) /= N_Record_Representation_Clause then
+ Error_Pragma
+ ("pragma & must appear within record representation clause");
end if;
- end Compile_Time_Warning;
----------------------------
-- Complex_Representation --
or else Etype (Ent) /= Etype (Next_Entity (Ent))
then
Error_Pragma_Arg
- ("record for pragma% must have two fields of same fpt type",
- Arg1);
+ ("record for pragma% must have two fields of the same "
+ & "floating-point type", Arg1);
else
Set_Has_Complex_Representation (Base_Type (E));
+
+ -- We need to treat the type has having a non-standard
+ -- representation, for back-end purposes, even though in
+ -- general a complex will have the default representation
+ -- of a record with two real components.
+
+ Set_Has_Non_Standard_Rep (Base_Type (E));
end if;
end Complex_Representation;
when Pragma_Convention => Convention : declare
C : Convention_Id;
E : Entity_Id;
+ pragma Warnings (Off, C);
+ pragma Warnings (Off, E);
begin
+ Check_Arg_Order ((Name_Convention, Name_Entity));
Check_Ada_83_Warning;
Check_Arg_Count (2);
Process_Convention (C, E);
begin
GNAT_Pragma;
+ Check_Arg_Order ((Name_Name, Name_Convention));
Check_Arg_Count (2);
Check_Optional_Identifier (Arg1, Name_Name);
Check_Optional_Identifier (Arg2, Name_Convention);
Check_Arg_Is_Identifier (Arg1);
- Check_Arg_Is_Identifier (Arg1);
+ Check_Arg_Is_Identifier (Arg2);
Idnam := Chars (Expression (Arg1));
Cname := Chars (Expression (Arg2));
-- pragma CPP_Class ([Entity =>] local_NAME)
when Pragma_CPP_Class => CPP_Class : declare
- Arg : Node_Id;
- Typ : Entity_Id;
- Default_DTC : Entity_Id := Empty;
- VTP_Type : constant Entity_Id := RTE (RE_Vtable_Ptr);
- C : Entity_Id;
- Tag_C : Entity_Id;
+ Arg : Node_Id;
+ Typ : Entity_Id;
begin
+ if Warn_On_Obsolescent_Feature then
+ Error_Msg_N
+ ("'G'N'A'T pragma cpp'_class is now obsolete; replace it" &
+ " by pragma import?", N);
+ end if;
+
GNAT_Pragma;
Check_Arg_Count (1);
Check_Optional_Identifier (Arg1, Name_Entity);
Typ := Entity (Arg);
- if not Is_Record_Type (Typ) then
- Error_Pragma_Arg ("pragma% applicable to a record, "
- & "tagged record or record extension", Arg1);
- end if;
-
- Default_DTC := First_Component (Typ);
- while Present (Default_DTC)
- and then Etype (Default_DTC) /= VTP_Type
- loop
- Next_Component (Default_DTC);
- end loop;
-
- -- Case of non tagged type
-
if not Is_Tagged_Type (Typ) then
- Set_Is_CPP_Class (Typ);
-
- if Present (Default_DTC) then
- Error_Pragma_Arg
- ("only tagged records can contain vtable pointers", Arg1);
- end if;
-
- -- Case of tagged type with no vtable ptr
-
- -- What is test for Typ = Root_Typ (Typ) about here ???
-
- elsif Is_Tagged_Type (Typ)
- and then Typ = Root_Type (Typ)
- and then No (Default_DTC)
- then
- Error_Pragma_Arg
- ("a cpp_class must contain a vtable pointer", Arg1);
-
- -- Tagged type that has a vtable ptr
-
- elsif Present (Default_DTC) then
- Set_Is_CPP_Class (Typ);
- Set_Is_Limited_Record (Typ);
- Set_Is_Tag (Default_DTC);
- Set_DT_Entry_Count (Default_DTC, No_Uint);
-
- -- Since a CPP type has no direct link to its associated tag
- -- most tags checks cannot be performed
-
- Set_Kill_Tag_Checks (Typ);
- Set_Kill_Tag_Checks (Class_Wide_Type (Typ));
-
- -- Get rid of the _tag component when there was one.
- -- It is only useful for regular tagged types
-
- if Expander_Active and then Typ = Root_Type (Typ) then
-
- Tag_C := Tag_Component (Typ);
- C := First_Entity (Typ);
-
- if C = Tag_C then
- Set_First_Entity (Typ, Next_Entity (Tag_C));
+ Error_Pragma_Arg ("pragma% applicable to tagged types ", Arg1);
+ end if;
- else
- while Next_Entity (C) /= Tag_C loop
- Next_Entity (C);
- end loop;
+ -- Types treated as CPP classes are treated as limited, but we
+ -- don't require them to be declared this way. A warning is issued
+ -- to encourage the user to declare them as limited. This is not
+ -- an error, for compatibility reasons, because these types have
+ -- been supported this way for some time.
- Set_Next_Entity (C, Next_Entity (Tag_C));
- end if;
- end if;
+ if not Is_Limited_Type (Typ) then
+ Error_Msg_N
+ ("imported 'C'P'P type should be " &
+ "explicitly declared limited?",
+ Get_Pragma_Arg (Arg1));
+ Error_Msg_N
+ ("\type will be considered limited",
+ Get_Pragma_Arg (Arg1));
end if;
+
+ Set_Is_CPP_Class (Typ);
+ Set_Is_Limited_Record (Typ);
+ Set_Convention (Typ, Convention_CPP);
end CPP_Class;
---------------------
-- CPP_Constructor --
---------------------
- -- pragma CPP_Constructor ([Entity =>] LOCAL_NAME);
+ -- pragma CPP_Constructor ([Entity =>] LOCAL_NAME
+ -- [, [External_Name =>] static_string_EXPRESSION ]
+ -- [, [Link_Name =>] static_string_EXPRESSION ]);
when Pragma_CPP_Constructor => CPP_Constructor : declare
Id : Entity_Id;
begin
GNAT_Pragma;
- Check_Arg_Count (1);
+ Check_At_Least_N_Arguments (1);
+ Check_At_Most_N_Arguments (3);
Check_Optional_Identifier (Arg1, Name_Entity);
Check_Arg_Is_Local_Name (Arg1);
and then Is_Class_Wide_Type (Etype (Def_Id))
and then Is_CPP_Class (Etype (Etype (Def_Id)))
then
- -- What the heck is this??? this pragma allows only 1 arg
-
if Arg_Count >= 2 then
- Check_At_Most_N_Arguments (3);
+ Set_Imported (Def_Id);
+ Set_Is_Public (Def_Id);
Process_Interface_Name (Def_Id, Arg2, Arg3);
end if;
-- CPP_Virtual --
-----------------
- -- pragma CPP_Virtual
- -- [Entity =>] LOCAL_NAME
- -- [ [Vtable_Ptr =>] LOCAL_NAME,
- -- [Position =>] static_integer_EXPRESSION]);
-
when Pragma_CPP_Virtual => CPP_Virtual : declare
- Arg : Node_Id;
- Typ : Entity_Id;
- Subp : Entity_Id;
- VTP_Type : constant Entity_Id := RTE (RE_Vtable_Ptr);
- DTC : Entity_Id;
- V : Uint;
-
begin
GNAT_Pragma;
- if Arg_Count = 3 then
- Check_Optional_Identifier (Arg2, "vtable_ptr");
-
- -- We allow Entry_Count as well as Position for the third
- -- parameter for back compatibility with versions of GNAT
- -- before version 3.12. The documentation has always said
- -- Position, but the code up to 3.12 said Entry_Count.
-
- if Chars (Arg3) /= Name_Position then
- Check_Optional_Identifier (Arg3, "entry_count");
- end if;
-
- else
- Check_Arg_Count (1);
- end if;
-
- Check_Optional_Identifier (Arg1, Name_Entity);
- Check_Arg_Is_Local_Name (Arg1);
-
- -- First argument must be a subprogram name
-
- Arg := Expression (Arg1);
- Find_Program_Unit_Name (Arg);
-
- if Etype (Arg) = Any_Type then
- return;
- else
- Subp := Entity (Arg);
- end if;
-
- if not (Is_Subprogram (Subp)
- and then Is_Dispatching_Operation (Subp))
- then
- Error_Pragma_Arg
- ("pragma% must reference a primitive operation", Arg1);
- end if;
-
- Typ := Find_Dispatching_Type (Subp);
-
- -- If only one Argument defaults are :
- -- . DTC_Entity is the default Vtable pointer
- -- . DT_Position will be set at the freezing point
-
- if Arg_Count = 1 then
- Set_DTC_Entity (Subp, Tag_Component (Typ));
- return;
- end if;
-
- -- Second argument is a component name of type Vtable_Ptr
-
- Arg := Expression (Arg2);
-
- if Nkind (Arg) /= N_Identifier then
- Error_Msg_NE ("must be a& component name", Arg, Typ);
- raise Pragma_Exit;
- end if;
-
- DTC := First_Component (Typ);
- while Present (DTC) and then Chars (DTC) /= Chars (Arg) loop
- Next_Component (DTC);
- end loop;
-
- if No (DTC) then
- Error_Msg_NE ("must be a& component name", Arg, Typ);
- raise Pragma_Exit;
-
- elsif Etype (DTC) /= VTP_Type then
- Wrong_Type (Arg, VTP_Type);
- return;
- end if;
-
- -- Third argument is an integer (DT_Position)
-
- Arg := Expression (Arg3);
- Analyze_And_Resolve (Arg, Any_Integer);
-
- if not Is_Static_Expression (Arg) then
- Flag_Non_Static_Expr
- ("third argument of pragma CPP_Virtual must be static!",
- Arg3);
- raise Pragma_Exit;
-
- else
- V := Expr_Value (Expression (Arg3));
-
- if V <= 0 then
- Error_Pragma_Arg
- ("third argument of pragma% must be positive",
- Arg3);
-
- else
- Set_DTC_Entity (Subp, DTC);
- Set_DT_Position (Subp, V);
- end if;
- end if;
- end CPP_Virtual;
+ if Warn_On_Obsolescent_Feature then
+ Error_Msg_N
+ ("'G'N'A'T pragma cpp'_virtual is now obsolete and has " &
+ "no effect?", N);
+ end if;
+ end CPP_Virtual;
----------------
-- CPP_Vtable --
----------------
- -- pragma CPP_Vtable (
- -- [Entity =>] LOCAL_NAME
- -- [Vtable_Ptr =>] LOCAL_NAME,
- -- [Entry_Count =>] static_integer_EXPRESSION);
-
when Pragma_CPP_Vtable => CPP_Vtable : declare
- Arg : Node_Id;
- Typ : Entity_Id;
- VTP_Type : constant Entity_Id := RTE (RE_Vtable_Ptr);
- DTC : Entity_Id;
- V : Uint;
- Elmt : Elmt_Id;
-
begin
GNAT_Pragma;
- Check_Arg_Count (3);
- Check_Optional_Identifier (Arg1, Name_Entity);
- Check_Optional_Identifier (Arg2, "vtable_ptr");
- Check_Optional_Identifier (Arg3, "entry_count");
- Check_Arg_Is_Local_Name (Arg1);
-
- -- First argument is a record type name
-
- Arg := Expression (Arg1);
- Analyze (Arg);
-
- if Etype (Arg) = Any_Type then
- return;
- else
- Typ := Entity (Arg);
- end if;
-
- if not (Is_Tagged_Type (Typ) and then Is_CPP_Class (Typ)) then
- Error_Pragma_Arg ("'C'P'P_Class tagged type expected", Arg1);
- end if;
-
- -- Second argument is a component name of type Vtable_Ptr
-
- Arg := Expression (Arg2);
-
- if Nkind (Arg) /= N_Identifier then
- Error_Msg_NE ("must be a& component name", Arg, Typ);
- raise Pragma_Exit;
- end if;
-
- DTC := First_Component (Typ);
- while Present (DTC) and then Chars (DTC) /= Chars (Arg) loop
- Next_Component (DTC);
- end loop;
-
- if No (DTC) then
- Error_Msg_NE ("must be a& component name", Arg, Typ);
- raise Pragma_Exit;
-
- elsif Etype (DTC) /= VTP_Type then
- Wrong_Type (DTC, VTP_Type);
- return;
-
- -- If it is the first pragma Vtable, This becomes the default tag
- elsif (not Is_Tag (DTC))
- and then DT_Entry_Count (Tag_Component (Typ)) = No_Uint
- then
- Set_Is_Tag (Tag_Component (Typ), False);
- Set_Is_Tag (DTC, True);
- Set_DT_Entry_Count (DTC, No_Uint);
+ if Warn_On_Obsolescent_Feature then
+ Error_Msg_N
+ ("'G'N'A'T pragma cpp'_vtable is now obsolete and has " &
+ "no effect?", N);
end if;
+ end CPP_Vtable;
- -- Those pragmas must appear before any primitive operation
- -- definition (except inherited ones) otherwise the default
- -- may be wrong
-
- Elmt := First_Elmt (Primitive_Operations (Typ));
- while Present (Elmt) loop
- if No (Alias (Node (Elmt))) then
- Error_Msg_Sloc := Sloc (Node (Elmt));
- Error_Pragma
- ("pragma% must appear before this primitive operation");
- end if;
-
- Next_Elmt (Elmt);
- end loop;
+ -----------
+ -- Debug --
+ -----------
- -- Third argument is an integer (DT_Entry_Count)
+ -- pragma Debug ([boolean_EXPRESSION,] PROCEDURE_CALL_STATEMENT);
- Arg := Expression (Arg3);
- Analyze_And_Resolve (Arg, Any_Integer);
+ when Pragma_Debug => Debug : declare
+ Cond : Node_Id;
- if not Is_Static_Expression (Arg) then
- Flag_Non_Static_Expr
- ("entry count for pragma CPP_Vtable must be a static " &
- "expression!", Arg3);
- raise Pragma_Exit;
+ begin
+ GNAT_Pragma;
- else
- V := Expr_Value (Expression (Arg3));
+ Cond :=
+ New_Occurrence_Of
+ (Boolean_Literals (Debug_Pragmas_Enabled and Expander_Active),
+ Loc);
- if V <= 0 then
- Error_Pragma_Arg
- ("entry count for pragma% must be positive", Arg3);
- else
- Set_DT_Entry_Count (DTC, V);
- end if;
- end if;
- end CPP_Vtable;
+ if Arg_Count = 2 then
+ Cond :=
+ Make_And_Then (Loc,
+ Left_Opnd => Relocate_Node (Cond),
+ Right_Opnd => Expression (Arg1));
+ end if;
+
+ -- Rewrite into a conditional with an appropriate condition. We
+ -- wrap the procedure call in a block so that overhead from e.g.
+ -- use of the secondary stack does not generate execution overhead
+ -- for suppressed conditions.
+
+ Rewrite (N, Make_Implicit_If_Statement (N,
+ Condition => Cond,
+ Then_Statements => New_List (
+ Make_Block_Statement (Loc,
+ Handled_Statement_Sequence =>
+ Make_Handled_Sequence_Of_Statements (Loc,
+ Statements => New_List (
+ Relocate_Node (Debug_Statement (N))))))));
+ Analyze (N);
+ end Debug;
- -----------
- -- Debug --
- -----------
+ ------------------
+ -- Debug_Policy --
+ ------------------
- -- pragma Debug (PROCEDURE_CALL_STATEMENT);
+ -- pragma Debug_Policy (Check | Ignore)
- when Pragma_Debug => Debug : begin
+ when Pragma_Debug_Policy =>
GNAT_Pragma;
+ Check_Arg_Count (1);
+ Check_Arg_Is_One_Of (Arg1, Name_Check, Name_Ignore);
+ Debug_Pragmas_Enabled := Chars (Expression (Arg1)) = Name_Check;
- -- If assertions are enabled, and we are expanding code, then
- -- we rewrite the pragma with its corresponding procedure call
- -- and then analyze the call.
-
- if Assertions_Enabled and Expander_Active then
- Rewrite (N, Relocate_Node (Debug_Statement (N)));
- Analyze (N);
+ ---------------------
+ -- Detect_Blocking --
+ ---------------------
- -- Otherwise we work a bit to get a tree that makes sense
- -- for ASIS purposes, namely a pragma with an analyzed
- -- argument that looks like a procedure call.
+ -- pragma Detect_Blocking;
- else
- Expander_Mode_Save_And_Set (False);
- Rewrite (N, Relocate_Node (Debug_Statement (N)));
- Analyze (N);
- Rewrite (N,
- Make_Pragma (Loc,
- Chars => Name_Debug,
- Pragma_Argument_Associations =>
- New_List (Relocate_Node (N))));
- Expander_Mode_Restore;
- end if;
- end Debug;
+ when Pragma_Detect_Blocking =>
+ Ada_2005_Pragma;
+ Check_Arg_Count (0);
+ Check_Valid_Configuration_Pragma;
+ Detect_Blocking := True;
-------------------
-- Discard_Names --
-- pragma Discard_Names [([On =>] LOCAL_NAME)];
when Pragma_Discard_Names => Discard_Names : declare
- E_Id : Entity_Id;
E : Entity_Id;
+ E_Id : Entity_Id;
begin
Check_Ada_83_Warning;
-- If there is no parameter, then from now on this pragma
-- applies to any enumeration, exception or tagged type
- -- defined in the current declarative part.
+ -- defined in the current declarative part, and recursively
+ -- to any nested scope.
Set_Discard_Names (Current_Scope);
return;
Check_Arg_Count (1);
Check_Optional_Identifier (Arg1, Name_On);
Check_Arg_Is_Local_Name (Arg1);
+
E_Id := Expression (Arg1);
if Etype (E_Id) = Any_Type then
end if;
if (Is_First_Subtype (E)
- and then (Is_Enumeration_Type (E)
- or else Is_Tagged_Type (E)))
+ and then
+ (Is_Enumeration_Type (E) or else Is_Tagged_Type (E)))
or else Ekind (E) = E_Exception
then
Set_Discard_Names (E);
Error_Pragma_Arg
("inappropriate entity for pragma%", Arg1);
end if;
+
end if;
end if;
end Discard_Names;
-- pragma Elaborate (library_unit_NAME {, library_unit_NAME});
when Pragma_Elaborate => Elaborate : declare
- Plist : List_Id;
- Parent_Node : Node_Id;
- Arg : Node_Id;
- Citem : Node_Id;
+ Arg : Node_Id;
+ Citem : Node_Id;
begin
-- Pragma must be in context items list of a compilation unit
- if not Is_List_Member (N) then
+ if not Is_In_Context_Clause then
Pragma_Misplaced;
- return;
-
- else
- Plist := List_Containing (N);
- Parent_Node := Parent (Plist);
-
- if Parent_Node = Empty
- or else Nkind (Parent_Node) /= N_Compilation_Unit
- or else Context_Items (Parent_Node) /= Plist
- then
- Pragma_Misplaced;
- return;
- end if;
end if;
-- Must be at least one argument
if Ada_Version = Ada_83 and then Comes_From_Source (N) then
Citem := Next (N);
-
while Present (Citem) loop
if Nkind (Citem) = N_Pragma
or else (Nkind (Citem) = N_With_Clause
end if;
-- Finally, the arguments must all be units mentioned in a with
- -- clause in the same context clause. Note we already checked
- -- (in Par.Prag) that the arguments are either identifiers or
+ -- clause in the same context clause. Note we already checked (in
+ -- Par.Prag) that the arguments are all identifiers or selected
+ -- components.
Arg := Arg1;
Outer : while Present (Arg) loop
- Citem := First (Plist);
-
+ Citem := First (List_Containing (N));
Inner : while Citem /= N loop
if Nkind (Citem) = N_With_Clause
and then Same_Name (Name (Citem), Expression (Arg))
then
Set_Elaborate_Present (Citem, True);
Set_Unit_Name (Expression (Arg), Name (Citem));
- Set_Suppress_Elaboration_Warnings (Entity (Name (Citem)));
+
+ -- With the pragma present, elaboration calls on
+ -- subprograms from the named unit need no further
+ -- checks, as long as the pragma appears in the current
+ -- compilation unit. If the pragma appears in some unit
+ -- in the context, there might still be a need for an
+ -- Elaborate_All_Desirable from the current compilation
+ -- to the named unit, so we keep the check enabled.
+
+ if In_Extended_Main_Source_Unit (N) then
+ Set_Suppress_Elaboration_Warnings
+ (Entity (Name (Citem)));
+ end if;
+
exit Inner;
end if;
end loop Outer;
-- Give a warning if operating in static mode with -gnatwl
- -- (elaboration warnings eanbled) switch set.
+ -- (elaboration warnings enabled) switch set.
if Elab_Warnings and not Dynamic_Elaboration_Checks then
Error_Msg_N
-- pragma Elaborate_All (library_unit_NAME {, library_unit_NAME});
when Pragma_Elaborate_All => Elaborate_All : declare
- Plist : List_Id;
- Parent_Node : Node_Id;
- Arg : Node_Id;
- Citem : Node_Id;
+ Arg : Node_Id;
+ Citem : Node_Id;
begin
Check_Ada_83_Warning;
-- Pragma must be in context items list of a compilation unit
- if not Is_List_Member (N) then
+ if not Is_In_Context_Clause then
Pragma_Misplaced;
- return;
-
- else
- Plist := List_Containing (N);
- Parent_Node := Parent (Plist);
-
- if Parent_Node = Empty
- or else Nkind (Parent_Node) /= N_Compilation_Unit
- or else Context_Items (Parent_Node) /= Plist
- then
- Pragma_Misplaced;
- return;
- end if;
end if;
-- Must be at least one argument
Arg := Arg1;
Outr : while Present (Arg) loop
- Citem := First (Plist);
-
+ Citem := First (List_Containing (N));
Innr : while Citem /= N loop
if Nkind (Citem) = N_With_Clause
and then Same_Name (Name (Citem), Expression (Arg))
then
Set_Elaborate_All_Present (Citem, True);
Set_Unit_Name (Expression (Arg), Name (Citem));
- Set_Suppress_Elaboration_Warnings (Entity (Name (Citem)));
+
+ -- Suppress warnings and elaboration checks on the named
+ -- unit if the pragma is in the current compilation, as
+ -- for pragma Elaborate.
+
+ if In_Extended_Main_Source_Unit (N) then
+ Set_Suppress_Elaboration_Warnings
+ (Entity (Name (Citem)));
+ end if;
exit Innr;
end if;
Error_Pragma ("pragma% must refer to a spec, not a body");
else
Set_Body_Required (Cunit_Node, True);
- Set_Has_Pragma_Elaborate_Body (Cunit_Ent);
+ Set_Has_Pragma_Elaborate_Body (Cunit_Ent);
-- If we are in dynamic elaboration mode, then we suppress
-- elaboration warnings for the unit, since it is definitely
Present (Source_Location)
then
Error_Pragma
- ("parameter profile and source location can not " &
+ ("parameter profile and source location cannot " &
"be used together in pragma%");
end if;
Source_Location);
end Eliminate;
- --------------------------
- -- Explicit_Overriding --
- --------------------------
-
- when Pragma_Explicit_Overriding =>
- Check_Valid_Configuration_Pragma;
- Check_Arg_Count (0);
- Explicit_Overriding := True;
-
------------
-- Export --
------------
C : Convention_Id;
Def_Id : Entity_Id;
+ pragma Warnings (Off, C);
+
begin
Check_Ada_83_Warning;
+ Check_Arg_Order
+ ((Name_Convention,
+ Name_Entity,
+ Name_External_Name,
+ Name_Link_Name));
Check_At_Least_N_Arguments (2);
Check_At_Most_N_Arguments (4);
Process_Convention (C, Def_Id);
if Ekind (Def_Id) /= E_Constant then
- Note_Possible_Modification (Expression (Arg2));
+ Note_Possible_Modification (Expression (Arg2), Sure => False);
end if;
Process_Interface_Name (Def_Id, Arg3, Arg4);
Set_Exported (Def_Id, Arg2);
+
+ -- If the entity is a deferred constant, propagate the
+ -- information to the full view, because gigi elaborates
+ -- the full view only.
+
+ if Ekind (Def_Id) = E_Constant
+ and then Present (Full_View (Def_Id))
+ then
+ declare
+ Id2 : constant Entity_Id := Full_View (Def_Id);
+ begin
+ Set_Is_Exported (Id2, Is_Exported (Def_Id));
+ Set_First_Rep_Item (Id2, First_Rep_Item (Def_Id));
+ Set_Interface_Name (Id2, Einfo.Interface_Name (Def_Id));
+ end;
+ end if;
end Export;
----------------------
----------------------
-- pragma Export_Exception (
- -- [Internal =>] LOCAL_NAME,
- -- [, [External =>] EXTERNAL_SYMBOL,]
+ -- [Internal =>] LOCAL_NAME
+ -- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Form =>] Ada | VMS]
-- [, [Code =>] static_integer_EXPRESSION]);
Code : Node_Id renames Args (4);
begin
+ GNAT_Pragma;
+
if Inside_A_Generic then
Error_Pragma ("pragma% cannot be used for generic entities");
end if;
---------------------
-- pragma Export_Function (
- -- [Internal =>] LOCAL_NAME,
- -- [, [External =>] EXTERNAL_SYMBOL,]
+ -- [Internal =>] LOCAL_NAME
+ -- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Parameter_Types =>] (PARAMETER_TYPES)]
-- [, [Result_Type =>] TYPE_DESIGNATOR]
-- [, [Mechanism =>] MECHANISM]
-------------------
-- pragma Export_Object (
- -- [Internal =>] LOCAL_NAME,
+ -- [Internal =>] LOCAL_NAME
-- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Size =>] EXTERNAL_SYMBOL]);
----------------------
-- pragma Export_Procedure (
- -- [Internal =>] LOCAL_NAME,
- -- [, [External =>] EXTERNAL_SYMBOL,]
+ -- [Internal =>] LOCAL_NAME
+ -- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Parameter_Types =>] (PARAMETER_TYPES)]
-- [, [Mechanism =>] MECHANISM]);
when Pragma_Export_Value =>
GNAT_Pragma;
+ Check_Arg_Order ((Name_Value, Name_Link_Name));
Check_Arg_Count (2);
Check_Optional_Identifier (Arg1, Name_Value);
-----------------------------
-- pragma Export_Valued_Procedure (
- -- [Internal =>] LOCAL_NAME,
+ -- [Internal =>] LOCAL_NAME
-- [, [External =>] EXTERNAL_SYMBOL,]
-- [, [Parameter_Types =>] (PARAMETER_TYPES)]
-- [, [Mechanism =>] MECHANISM]);
null;
else
Error_Msg_Sloc := Sloc (System_Extend_Pragma_Arg);
- Error_Pragma ("pragma% conflicts with that at#");
+ Error_Pragma ("pragma% conflicts with that #");
end if;
else
if Chars (Expression (Arg1)) = Name_On then
Extensions_Allowed := True;
- Ada_Version := Ada_Version_Type'Last;
else
Extensions_Allowed := False;
- Ada_Version := Ada_Version_Type'Min (Ada_Version, Ada_95);
end if;
--------------
-- [, [Link_Name =>] static_string_EXPRESSION ]);
when Pragma_External => External : declare
- C : Convention_Id;
- Def_Id : Entity_Id;
+ Def_Id : Entity_Id;
+
+ C : Convention_Id;
+ pragma Warnings (Off, C);
begin
GNAT_Pragma;
+ Check_Arg_Order
+ ((Name_Convention,
+ Name_Entity,
+ Name_External_Name,
+ Name_Link_Name));
Check_At_Least_N_Arguments (2);
Check_At_Most_N_Arguments (4);
Process_Convention (C, Def_Id);
- Note_Possible_Modification (Expression (Arg2));
+ Note_Possible_Modification (Expression (Arg2), Sure => False);
Process_Interface_Name (Def_Id, Arg3, Arg4);
Set_Exported (Def_Id, Arg2);
end External;
-- UPPERCASE | LOWERCASE
-- [, AS_IS | UPPERCASE | LOWERCASE]);
- when Pragma_External_Name_Casing =>
-
- External_Name_Casing : declare
+ when Pragma_External_Name_Casing => External_Name_Casing : declare
begin
GNAT_Pragma;
Check_No_Identifiers;
end case;
end External_Name_Casing;
+ --------------------------
+ -- Favor_Top_Level --
+ --------------------------
+
+ -- pragma Favor_Top_Level (type_NAME);
+
+ when Pragma_Favor_Top_Level => Favor_Top_Level : declare
+ Named_Entity : Entity_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_No_Identifiers;
+ Check_Arg_Count (1);
+ Check_Arg_Is_Local_Name (Arg1);
+ Named_Entity := Entity (Expression (Arg1));
+
+ -- If it's an access-to-subprogram type (in particular, not a
+ -- subtype), set the flag on that type.
+
+ if Is_Access_Subprogram_Type (Named_Entity) then
+ Set_Can_Use_Internal_Rep (Named_Entity, False);
+
+ -- Otherwise it's an error (name denotes the wrong sort of entity)
+
+ else
+ Error_Pragma_Arg
+ ("access-to-subprogram type expected", Expression (Arg1));
+ end if;
+ end Favor_Top_Level;
+
+ ---------------
+ -- Fast_Math --
+ ---------------
+
+ -- pragma Fast_Math;
+
+ when Pragma_Fast_Math =>
+ GNAT_Pragma;
+ Check_No_Identifiers;
+ Check_Valid_Configuration_Pragma;
+ Fast_Math := True;
+
---------------------------
-- Finalize_Storage_Only --
---------------------------
Typ : Entity_Id;
begin
+ GNAT_Pragma;
Check_No_Identifiers;
Check_Arg_Count (1);
Check_Arg_Is_Local_Name (Arg1);
-- Float_Representation --
--------------------------
- -- pragma Float_Representation (VAX_Float | IEEE_Float);
+ -- pragma Float_Representation (FLOAT_REP[, float_type_LOCAL_NAME]);
+
+ -- FLOAT_REP ::= VAX_Float | IEEE_Float
when Pragma_Float_Representation => Float_Representation : declare
Argx : Node_Id;
-- One argument case
if Arg_Count = 1 then
-
if Chars (Expression (Arg1)) = Name_VAX_Float then
-
if Opt.Float_Format = 'I' then
Error_Pragma ("'I'E'E'E format previously specified");
end if;
-- Two arguments, VAX_Float case
if Chars (Expression (Arg1)) = Name_VAX_Float then
-
case Digs is
when 6 => Set_F_Float (Ent);
when 9 => Set_D_Float (Ent);
end;
end Ident;
+ --------------------------
+ -- Implemented_By_Entry --
+ --------------------------
+
+ -- pragma Implemented_By_Entry (DIRECT_NAME);
+
+ when Pragma_Implemented_By_Entry => Implemented_By_Entry : declare
+ Ent : Entity_Id;
+
+ begin
+ Ada_2005_Pragma;
+ Check_Arg_Count (1);
+ Check_No_Identifiers;
+ Check_Arg_Is_Identifier (Arg1);
+ Check_Arg_Is_Local_Name (Arg1);
+ Ent := Entity (Expression (Arg1));
+
+ -- Pragma Implemented_By_Entry must be applied only to protected
+ -- synchronized or task interface primitives.
+
+ if (Ekind (Ent) /= E_Function
+ and then Ekind (Ent) /= E_Procedure)
+ or else not Present (First_Formal (Ent))
+ or else not Is_Concurrent_Interface (Etype (First_Formal (Ent)))
+ then
+ Error_Pragma_Arg
+ ("pragma % must be applied to a concurrent interface " &
+ "primitive", Arg1);
+
+ else
+ if Einfo.Implemented_By_Entry (Ent)
+ and then Warn_On_Redundant_Constructs
+ then
+ Error_Pragma ("?duplicate pragma%!");
+ else
+ Set_Implemented_By_Entry (Ent);
+ end if;
+ end if;
+ end Implemented_By_Entry;
+
+ -----------------------
+ -- Implicit_Packing --
+ -----------------------
+
+ -- pragma Implicit_Packing;
+
+ when Pragma_Implicit_Packing =>
+ GNAT_Pragma;
+ Check_Arg_Count (0);
+ Implicit_Packing := True;
+
------------
-- Import --
------------
-- pragma Import (
- -- [ Convention =>] convention_IDENTIFIER,
- -- [ Entity =>] local_NAME
+ -- [Convention =>] convention_IDENTIFIER,
+ -- [Entity =>] local_NAME
-- [, [External_Name =>] static_string_EXPRESSION ]
-- [, [Link_Name =>] static_string_EXPRESSION ]);
when Pragma_Import =>
Check_Ada_83_Warning;
+ Check_Arg_Order
+ ((Name_Convention,
+ Name_Entity,
+ Name_External_Name,
+ Name_Link_Name));
Check_At_Least_N_Arguments (2);
Check_At_Most_N_Arguments (4);
Process_Import_Or_Interface;
----------------------
-- pragma Import_Exception (
- -- [Internal =>] LOCAL_NAME,
- -- [, [External =>] EXTERNAL_SYMBOL,]
+ -- [Internal =>] LOCAL_NAME
+ -- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Form =>] Ada | VMS]
-- [, [Code =>] static_integer_EXPRESSION]);
Code : Node_Id renames Args (4);
begin
+ GNAT_Pragma;
Gather_Associations (Names, Args);
if Present (External) and then Present (Code) then
-------------------
-- pragma Import_Object (
- -- [Internal =>] LOCAL_NAME,
+ -- [Internal =>] LOCAL_NAME
-- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Size =>] EXTERNAL_SYMBOL]);
----------------------
-- pragma Import_Procedure (
- -- [Internal =>] LOCAL_NAME,
+ -- [Internal =>] LOCAL_NAME
-- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Parameter_Types =>] (PARAMETER_TYPES)]
-- [, [Mechanism =>] MECHANISM]
-----------------------------
-- pragma Import_Valued_Procedure (
- -- [Internal =>] LOCAL_NAME,
+ -- [Internal =>] LOCAL_NAME
-- [, [External =>] EXTERNAL_SYMBOL]
-- [, [Parameter_Types =>] (PARAMETER_TYPES)]
-- [, [Mechanism =>] MECHANISM]
-- Pragma is active if inlining option is active
- if Inline_Active then
- Process_Inline (True);
-
- -- Pragma is active in a predefined file in config run time mode
-
- elsif Configurable_Run_Time_Mode
- and then
- Is_Predefined_File_Name (Unit_File_Name (Current_Sem_Unit))
- then
- Process_Inline (True);
-
- -- Otherwise inlining is not active
-
- else
- Process_Inline (False);
- end if;
+ Process_Inline (Inline_Active);
-------------------
-- Inline_Always --
-- pragma Inline_Always ( NAME {, NAME} );
when Pragma_Inline_Always =>
+ GNAT_Pragma;
Process_Inline (True);
--------------------
-- pragma Inline_Generic (NAME {, NAME});
when Pragma_Inline_Generic =>
+ GNAT_Pragma;
Process_Generic_List;
----------------------
---------------
-- pragma Interface (
- -- convention_IDENTIFIER,
- -- local_NAME );
+ -- [ Convention =>] convention_IDENTIFIER,
+ -- [ Entity =>] local_NAME
+ -- [, [External_Name =>] static_string_EXPRESSION ]
+ -- [, [Link_Name =>] static_string_EXPRESSION ]);
when Pragma_Interface =>
GNAT_Pragma;
- Check_Arg_Count (2);
- Check_No_Identifiers;
+ Check_Arg_Order
+ ((Name_Convention,
+ Name_Entity,
+ Name_External_Name,
+ Name_Link_Name));
+ Check_At_Least_N_Arguments (2);
+ Check_At_Most_N_Arguments (4);
Process_Import_Or_Interface;
--------------------
begin
GNAT_Pragma;
+ Check_Arg_Order
+ ((Name_Entity, Name_External_Name, Name_Link_Name));
Check_At_Least_N_Arguments (2);
Check_At_Most_N_Arguments (3);
Id := Expression (Arg1);
Def_Id := Entity (Id);
end if;
- -- Special DEC-compatible processing for the object case,
- -- forces object to be imported.
+ -- Special DEC-compatible processing for the object case, forces
+ -- object to be imported.
if Ekind (Def_Id) = E_Variable then
Kill_Size_Check_Code (Def_Id);
- Note_Possible_Modification (Id);
+ Note_Possible_Modification (Id, Sure => False);
-- Initialization is not allowed for imported variable
if Is_Imported (Def_Id)
and then Present (First_Rep_Item (Def_Id))
and then Nkind (First_Rep_Item (Def_Id)) = N_Pragma
- and then Chars (First_Rep_Item (Def_Id)) = Name_Interface
+ and then
+ Pragma_Name (First_Rep_Item (Def_Id)) = Name_Interface
then
null;
else
-- described in "Handling of Default and Per-Object
-- Expressions" in sem.ads.
- Analyze_Per_Use_Expression (Arg, RTE (RE_Interrupt_Priority));
+ Preanalyze_Spec_Expression (Arg, RTE (RE_Interrupt_Priority));
end if;
if Nkind (P) /= N_Task_Definition
begin
GNAT_Pragma;
+ Check_Arg_Order ((Name_Name, Name_State));
Check_Arg_Count (2);
Check_Optional_Identifier (Arg1, Name_Name);
- Check_Optional_Identifier (Arg2, "state");
+ Check_Optional_Identifier (Arg2, Name_State);
Check_Arg_Is_Identifier (Arg2);
-- First argument is identifier
Error_Msg_Sloc :=
Interrupt_States.Table (IST_Num).Pragma_Loc;
Error_Pragma_Arg
- ("state conflicts with that given at #", Arg2);
+ ("state conflicts with that given #", Arg2);
exit;
end if;
-- pragma Java_Constructor ([Entity =>] LOCAL_NAME);
- when Pragma_Java_Constructor => Java_Constructor : declare
- Id : Entity_Id;
- Def_Id : Entity_Id;
- Hom_Id : Entity_Id;
+ -- Also handles pragma CIL_Constructor
+
+ when Pragma_CIL_Constructor | Pragma_Java_Constructor =>
+ Java_Constructor : declare
+ Id : Entity_Id;
+ Def_Id : Entity_Id;
+ Hom_Id : Entity_Id;
+ Convention : Convention_Id;
begin
GNAT_Pragma;
return;
end if;
+ case Prag_Id is
+ when Pragma_CIL_Constructor => Convention := Convention_CIL;
+ when Pragma_Java_Constructor => Convention := Convention_Java;
+ when others => null;
+ end case;
+
Hom_Id := Entity (Id);
-- Loop through homonyms
loop
Def_Id := Get_Base_Subprogram (Hom_Id);
- -- The constructor is required to be a function returning
- -- an access type whose designated type has convention Java.
+ -- The constructor is required to be a function returning an
+ -- access type whose designated type has convention Java/CIL.
if Ekind (Def_Id) = E_Function
- and then Ekind (Etype (Def_Id)) in Access_Kind
and then
- (Atree.Convention
- (Designated_Type (Etype (Def_Id))) = Convention_Java
- or else
- Atree.Convention
- (Root_Type (Designated_Type (Etype (Def_Id))))
- = Convention_Java)
+ (Is_Value_Type (Etype (Def_Id))
+ or else
+ (Ekind (Etype (Def_Id)) in Access_Kind
+ and then
+ (Atree.Convention
+ (Designated_Type (Etype (Def_Id))) = Convention
+ or else
+ Atree.Convention
+ (Root_Type (Designated_Type (Etype (Def_Id)))) =
+ Convention)))
then
Set_Is_Constructor (Def_Id);
- Set_Convention (Def_Id, Convention_Java);
+ Set_Convention (Def_Id, Convention);
+ Set_Is_Imported (Def_Id);
else
- Error_Pragma_Arg
- ("pragma% requires function returning a 'Java access type",
- Arg1);
+ if Convention = Convention_Java then
+ Error_Pragma_Arg
+ ("pragma% requires function returning a " &
+ "'Java access type", Arg1);
+ else
+ pragma Assert (Convention = Convention_CIL);
+ Error_Pragma_Arg
+ ("pragma% requires function returning a " &
+ "'CIL access type", Arg1);
+ end if;
end if;
Hom_Id := Homonym (Hom_Id);
-- java.lang.Object.Typ and that all primitives of the type
-- should be declared abstract. ???
- if not Is_Tagged_Type (Typ) or else not Is_Abstract (Typ) then
+ if not Is_Tagged_Type (Typ) or else not Is_Abstract_Type (Typ) then
Error_Pragma_Arg ("pragma% requires an abstract "
& "tagged type", Arg1);
-- License --
-------------
- -- pragma License (RESTRICTED | UNRESRICTED | GPL | MODIFIED_GPL);
+ -- pragma License (RESTRICTED | UNRESTRICTED | GPL | MODIFIED_GPL);
when Pragma_License =>
GNAT_Pragma;
-- differences in processing between Link_With
-- and Linker_Options).
- declare
+ Arg_Store : declare
C : constant Char_Code := Get_Char_Code (' ');
S : constant String_Id :=
Strval (Expr_Value_S (Expression (Arg)));
procedure Skip_Spaces;
-- Advance F past any spaces
+ -----------------
+ -- Skip_Spaces --
+ -----------------
+
procedure Skip_Spaces is
begin
while F <= L and then Get_String_Char (S, F) = C loop
end loop;
end Skip_Spaces;
+ -- Start of processing for Arg_Store
+
begin
Skip_Spaces; -- skip leading spaces
F := F + 1;
end if;
end loop;
- end;
+ end Arg_Store;
Arg := Next (Arg);
-- pragma Linker_Alias (
-- [Entity =>] LOCAL_NAME
- -- [Alias =>] static_string_EXPRESSION);
+ -- [Target =>] static_string_EXPRESSION);
when Pragma_Linker_Alias =>
GNAT_Pragma;
+ Check_Arg_Order ((Name_Entity, Name_Target));
Check_Arg_Count (2);
Check_Optional_Identifier (Arg1, Name_Entity);
- Check_Optional_Identifier (Arg2, "alias");
+ Check_Optional_Identifier (Arg2, Name_Target);
Check_Arg_Is_Library_Level_Local_Name (Arg1);
Check_Arg_Is_Static_Expression (Arg2, Standard_String);
Set_Has_Gigi_Rep_Item (Entity (Expression (Arg1)));
end if;
+ ------------------------
+ -- Linker_Constructor --
+ ------------------------
+
+ -- pragma Linker_Constructor (procedure_LOCAL_NAME);
+
+ -- Code is shared with Linker_Destructor
+
+ -----------------------
+ -- Linker_Destructor --
+ -----------------------
+
+ -- pragma Linker_Destructor (procedure_LOCAL_NAME);
+
+ when Pragma_Linker_Constructor |
+ Pragma_Linker_Destructor =>
+ Linker_Constructor : declare
+ Arg1_X : Node_Id;
+ Proc : Entity_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_Arg_Count (1);
+ Check_No_Identifiers;
+ Check_Arg_Is_Local_Name (Arg1);
+ Arg1_X := Expression (Arg1);
+ Analyze (Arg1_X);
+ Proc := Find_Unique_Parameterless_Procedure (Arg1_X, Arg1);
+
+ if not Is_Library_Level_Entity (Proc) then
+ Error_Pragma_Arg
+ ("argument for pragma% must be library level entity", Arg1);
+ end if;
+
+ -- The only processing required is to link this item on to the
+ -- list of rep items for the given entity. This is accomplished
+ -- by the call to Rep_Item_Too_Late (when no error is detected
+ -- and False is returned).
+
+ if Rep_Item_Too_Late (Proc, N) then
+ return;
+ else
+ Set_Has_Gigi_Rep_Item (Proc);
+ end if;
+ end Linker_Constructor;
+
--------------------
-- Linker_Options --
--------------------
Check_No_Identifiers;
Check_Arg_Count (1);
Check_Is_In_Decl_Part_Or_Package_Spec;
+ Check_Arg_Is_Static_Expression (Arg1, Standard_String);
+ Start_String (Strval (Expr_Value_S (Expression (Arg1))));
+
+ Arg := Arg2;
+ while Present (Arg) loop
+ Check_Arg_Is_Static_Expression (Arg, Standard_String);
+ Store_String_Char (ASCII.NUL);
+ Store_String_Chars (Strval (Expr_Value_S (Expression (Arg))));
+ Arg := Next (Arg);
+ end loop;
if Operating_Mode = Generate_Code
and then In_Extended_Main_Source_Unit (N)
then
- Check_Arg_Is_Static_Expression (Arg1, Standard_String);
- Start_String (Strval (Expr_Value_S (Expression (Arg1))));
-
- Arg := Arg2;
- while Present (Arg) loop
- Check_Arg_Is_Static_Expression (Arg, Standard_String);
- Store_String_Char (ASCII.NUL);
- Store_String_Chars
- (Strval (Expr_Value_S (Expression (Arg))));
- Arg := Next (Arg);
- end loop;
-
Store_Linker_Option_String (End_String);
end if;
end Linker_Options;
when Pragma_Linker_Section =>
GNAT_Pragma;
+ Check_Arg_Order ((Name_Entity, Name_Section));
Check_Arg_Count (2);
Check_Optional_Identifier (Arg1, Name_Entity);
Check_Optional_Identifier (Arg2, Name_Section);
Check_Arg_Is_Library_Level_Local_Name (Arg1);
Check_Arg_Is_Static_Expression (Arg2, Standard_String);
+ -- This pragma applies only to objects
+
+ if not Is_Object (Entity (Expression (Arg1))) then
+ Error_Pragma_Arg ("pragma% applies only to objects", Arg1);
+ end if;
+
-- The only processing required is to link this item on to the
-- list of rep items for the given entity. This is accomplished
-- by the call to Rep_Item_Too_Late (when no error is detected
-----------------------
-- pragma Machine_Attribute (
- -- [Entity =>] LOCAL_NAME,
- -- [Attribute_Name =>] static_string_EXPRESSION
- -- [,[Info =>] static_string_EXPRESSION] );
+ -- [Entity =>] LOCAL_NAME,
+ -- [Attribute_Name =>] static_string_EXPRESSION
+ -- [, [Info =>] static_string_EXPRESSION] );
when Pragma_Machine_Attribute => Machine_Attribute : declare
Def_Id : Entity_Id;
begin
GNAT_Pragma;
+ Check_Arg_Order ((Name_Entity, Name_Attribute_Name, Name_Info));
if Arg_Count = 3 then
- Check_Optional_Identifier (Arg3, "info");
+ Check_Optional_Identifier (Arg3, Name_Info);
Check_Arg_Is_Static_Expression (Arg3, Standard_String);
else
Check_Arg_Count (2);
end if;
- Check_Arg_Is_Local_Name (Arg1);
- Check_Optional_Identifier (Arg2, "attribute_name");
Check_Optional_Identifier (Arg1, Name_Entity);
+ Check_Optional_Identifier (Arg2, Name_Attribute_Name);
+ Check_Arg_Is_Local_Name (Arg1);
Check_Arg_Is_Static_Expression (Arg2, Standard_String);
Def_Id := Entity (Expression (Arg1));
-- Main --
----------
- -- pragma Main_Storage
- -- (MAIN_STORAGE_OPTION [, MAIN_STORAGE_OPTION]);
+ -- pragma Main
+ -- (MAIN_OPTION [, MAIN_OPTION]);
- -- MAIN_STORAGE_OPTION ::=
- -- [WORKING_STORAGE =>] static_SIMPLE_EXPRESSION
- -- | [TOP_GUARD =>] static_SIMPLE_EXPRESSION
+ -- MAIN_OPTION ::=
+ -- [STACK_SIZE =>] static_integer_EXPRESSION
+ -- | [TASK_STACK_SIZE_DEFAULT =>] static_integer_EXPRESSION
+ -- | [TIME_SLICING_ENABLED =>] static_boolean_EXPRESSION
when Pragma_Main => Main : declare
Args : Args_List (1 .. 3);
Nod := Next (N);
while Present (Nod) loop
if Nkind (Nod) = N_Pragma
- and then Chars (Nod) = Name_Main
+ and then Pragma_Name (Nod) = Name_Main
then
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N ("duplicate pragma% not permitted", Nod);
end if;
Nod := Next (N);
while Present (Nod) loop
if Nkind (Nod) = N_Pragma
- and then Chars (Nod) = Name_Main_Storage
+ and then Pragma_Name (Nod) = Name_Main_Storage
then
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N ("duplicate pragma% not permitted", Nod);
end if;
Check_Arg_Count (1);
Check_Arg_Is_Integer_Literal (Arg1);
+ -------------
+ -- No_Body --
+ -------------
+
+ -- pragma No_Body;
+
+ -- The only correct use of this pragma is on its own in a file, in
+ -- which case it is specially processed (see Gnat1drv.Check_Bad_Body
+ -- and Frontend, which use Sinput.L.Source_File_Is_Pragma_No_Body to
+ -- check for a file containing nothing but a No_Body pragma). If we
+ -- attempt to process it during normal semantics processing, it means
+ -- it was misplaced.
+
+ when Pragma_No_Body =>
+ GNAT_Pragma;
+ Pragma_Misplaced;
+
---------------
-- No_Return --
---------------
- -- pragma No_Return (procedure_LOCAL_NAME);
+ -- pragma No_Return (procedure_LOCAL_NAME {, procedure_Local_Name});
when Pragma_No_Return => No_Return : declare
Id : Node_Id;
E : Entity_Id;
Found : Boolean;
+ Arg : Node_Id;
begin
GNAT_Pragma;
- Check_Arg_Count (1);
- Check_No_Identifiers;
- Check_Arg_Is_Local_Name (Arg1);
- Id := Expression (Arg1);
- Analyze (Id);
+ Check_At_Least_N_Arguments (1);
- if not Is_Entity_Name (Id) then
- Error_Pragma_Arg ("entity name required", Arg1);
- end if;
+ -- Loop through arguments of pragma
- if Etype (Id) = Any_Type then
- raise Pragma_Exit;
- end if;
+ Arg := Arg1;
+ while Present (Arg) loop
+ Check_Arg_Is_Local_Name (Arg);
+ Id := Expression (Arg);
+ Analyze (Id);
- E := Entity (Id);
+ if not Is_Entity_Name (Id) then
+ Error_Pragma_Arg ("entity name required", Arg);
+ end if;
- Found := False;
- while Present (E)
- and then Scope (E) = Current_Scope
- loop
- if Ekind (E) = E_Procedure
- or else Ekind (E) = E_Generic_Procedure
- then
- Set_No_Return (E);
- Found := True;
+ if Etype (Id) = Any_Type then
+ raise Pragma_Exit;
end if;
- E := Homonym (E);
+ -- Loop to find matching procedures
+
+ E := Entity (Id);
+ Found := False;
+ while Present (E)
+ and then Scope (E) = Current_Scope
+ loop
+ if Ekind (E) = E_Procedure
+ or else Ekind (E) = E_Generic_Procedure
+ then
+ Set_No_Return (E);
+
+ -- Set flag on any alias as well
+
+ if Is_Overloadable (E) and then Present (Alias (E)) then
+ Set_No_Return (Alias (E));
+ end if;
+
+ Found := True;
+ end if;
+
+ E := Homonym (E);
+ end loop;
+
+ if not Found then
+ Error_Pragma_Arg ("no procedure & found for pragma%", Arg);
+ end if;
+
+ Next (Arg);
end loop;
+ end No_Return;
- if not Found then
- Error_Pragma ("no procedures found for pragma%");
+ -----------------
+ -- No_Run_Time --
+ -----------------
+
+ -- pragma No_Run_Time;
+
+ -- Note: this pragma is retained for backwards compatibility.
+ -- See body of Rtsfind for full details on its handling.
+
+ when Pragma_No_Run_Time =>
+ GNAT_Pragma;
+ Check_Valid_Configuration_Pragma;
+ Check_Arg_Count (0);
+
+ No_Run_Time_Mode := True;
+ Configurable_Run_Time_Mode := True;
+
+ -- Set Duration to 32 bits if word size is 32
+
+ if Ttypes.System_Word_Size = 32 then
+ Duration_32_Bits_On_Target := True;
end if;
- end No_Return;
+
+ -- Set appropriate restrictions
+
+ Set_Restriction (No_Finalization, N);
+ Set_Restriction (No_Exception_Handlers, N);
+ Set_Restriction (Max_Tasks, N, 0);
+ Set_Restriction (No_Tasking, N);
------------------------
-- No_Strict_Aliasing --
------------------------
- when Pragma_No_Strict_Aliasing => No_Strict_Alias : declare
+ -- pragma No_Strict_Aliasing [([Entity =>] type_LOCAL_NAME)];
+
+ when Pragma_No_Strict_Aliasing => No_Strict_Aliasing : declare
E_Id : Entity_Id;
begin
Set_No_Strict_Aliasing (Implementation_Base_Type (E_Id));
end if;
- end No_Strict_Alias;
+ end No_Strict_Aliasing;
+
+ -----------------------
+ -- Normalize_Scalars --
+ -----------------------
+
+ -- pragma Normalize_Scalars;
+
+ when Pragma_Normalize_Scalars =>
+ Check_Ada_83_Warning;
+ Check_Arg_Count (0);
+ Check_Valid_Configuration_Pragma;
+ Normalize_Scalars := True;
+ Init_Or_Norm_Scalars := True;
-----------------
-- Obsolescent --
-----------------
- -- pragma Obsolescent [(static_string_EXPRESSION)];
+ -- pragma Obsolescent [(
+ -- [Entity => NAME,]
+ -- [(static_string_EXPRESSION [, Ada_05])];
when Pragma_Obsolescent => Obsolescent : declare
+ Ename : Node_Id;
+ Decl : Node_Id;
+
+ procedure Set_Obsolescent (E : Entity_Id);
+ -- Given an entity Ent, mark it as obsolescent if appropriate
+
+ ---------------------
+ -- Set_Obsolescent --
+ ---------------------
+
+ procedure Set_Obsolescent (E : Entity_Id) is
+ Active : Boolean;
+ Ent : Entity_Id;
+ S : String_Id;
+
+ begin
+ Active := True;
+ Ent := E;
+
+ -- Entity name was given
+
+ if Present (Ename) then
+
+ -- If entity name matches, we are fine
+ -- Save entity in pragma argument, for ASIS use.
+
+ if Chars (Ename) = Chars (Ent) then
+ Set_Entity (Ename, Ent);
+ Generate_Reference (Ent, Ename);
+
+ -- If entity name does not match, only possibility is an
+ -- enumeration literal from an enumeration type declaration.
+
+ elsif Ekind (Ent) /= E_Enumeration_Type then
+ Error_Pragma
+ ("pragma % entity name does not match declaration");
+
+ else
+ Ent := First_Literal (E);
+ loop
+ if No (Ent) then
+ Error_Pragma
+ ("pragma % entity name does not match any " &
+ "enumeration literal");
+
+ elsif Chars (Ent) = Chars (Ename) then
+ Set_Entity (Ename, Ent);
+ Generate_Reference (Ent, Ename);
+ exit;
+
+ else
+ Ent := Next_Literal (Ent);
+ end if;
+ end loop;
+ end if;
+ end if;
+
+ -- Ent points to entity to be marked
+
+ if Arg_Count >= 1 then
+
+ -- Deal with static string argument
+
+ Check_Arg_Is_Static_Expression (Arg1, Standard_String);
+ S := Strval (Expression (Arg1));
+
+ for J in 1 .. String_Length (S) loop
+ if not In_Character_Range (Get_String_Char (S, J)) then
+ Error_Pragma_Arg
+ ("pragma% argument does not allow wide characters",
+ Arg1);
+ end if;
+ end loop;
+
+ Obsolescent_Warnings.Append
+ ((Ent => Ent, Msg => Strval (Expression (Arg1))));
+
+ -- Check for Ada_05 parameter
+
+ if Arg_Count /= 1 then
+ Check_Arg_Count (2);
+
+ declare
+ Argx : constant Node_Id := Get_Pragma_Arg (Arg2);
+
+ begin
+ Check_Arg_Is_Identifier (Argx);
+
+ if Chars (Argx) /= Name_Ada_05 then
+ Error_Msg_Name_2 := Name_Ada_05;
+ Error_Pragma_Arg
+ ("only allowed argument for pragma% is %", Argx);
+ end if;
+
+ if Ada_Version_Explicit < Ada_05
+ or else not Warn_On_Ada_2005_Compatibility
+ then
+ Active := False;
+ end if;
+ end;
+ end if;
+ end if;
+
+ -- Set flag if pragma active
+
+ if Active then
+ Set_Is_Obsolescent (Ent);
+ end if;
+
+ return;
+ end Set_Obsolescent;
+
+ -- Start of processing for pragma Obsolescent
+
begin
GNAT_Pragma;
- Check_At_Most_N_Arguments (1);
- Check_No_Identifiers;
- if Arg_Count = 1 then
- Check_Arg_Is_Static_Expression (Arg1, Standard_String);
- end if;
+ Check_At_Most_N_Arguments (3);
- if No (Prev (N))
- or else (Nkind (Prev (N))) /= N_Subprogram_Declaration
+ -- See if first argument specifies an entity name
+
+ if Arg_Count >= 1
+ and then Chars (Arg1) = Name_Entity
then
- Error_Pragma
- ("pragma% misplaced, must immediately " &
- "follow subprogram spec");
+ Ename := Get_Pragma_Arg (Arg1);
+
+ if Nkind (Ename) /= N_Character_Literal
+ and then
+ Nkind (Ename) /= N_Identifier
+ and then
+ Nkind (Ename) /= N_Operator_Symbol
+ then
+ Error_Pragma_Arg ("entity name expected for pragma%", Arg1);
+ end if;
+
+ -- Eliminate first argument, so we can share processing
+
+ Arg1 := Arg2;
+ Arg2 := Arg3;
+ Arg_Count := Arg_Count - 1;
+
+ -- No Entity name argument given
+
+ else
+ Ename := Empty;
end if;
- end Obsolescent;
- -----------------
- -- No_Run_Time --
- -----------------
+ Check_No_Identifiers;
- -- pragma No_Run_Time
+ -- Get immediately preceding declaration
- -- Note: this pragma is retained for backwards compatibiltiy.
- -- See body of Rtsfind for full details on its handling.
+ Decl := Prev (N);
+ while Present (Decl) and then Nkind (Decl) = N_Pragma loop
+ Prev (Decl);
+ end loop;
- when Pragma_No_Run_Time =>
- GNAT_Pragma;
- Check_Valid_Configuration_Pragma;
- Check_Arg_Count (0);
+ -- Cases where we do not follow anything other than another pragma
- No_Run_Time_Mode := True;
- Configurable_Run_Time_Mode := True;
+ if No (Decl) then
- declare
- Word32 : constant Boolean := Ttypes.System_Word_Size = 32;
- begin
- if Word32 then
- Duration_32_Bits_On_Target := True;
- end if;
- end;
+ -- First case: library level compilation unit declaration with
+ -- the pragma immediately following the declaration.
- Set_Restriction (No_Finalization, N);
- Set_Restriction (No_Exception_Handlers, N);
- Set_Restriction (Max_Tasks, N, 0);
- Set_Restriction (No_Tasking, N);
+ if Nkind (Parent (N)) = N_Compilation_Unit_Aux then
+ Set_Obsolescent
+ (Defining_Entity (Unit (Parent (Parent (N)))));
+ return;
- -----------------------
- -- Normalize_Scalars --
- -----------------------
+ -- Case 2: library unit placement for package
- -- pragma Normalize_Scalars;
+ else
+ declare
+ Ent : constant Entity_Id := Find_Lib_Unit_Name;
+ begin
+ if Is_Package_Or_Generic_Package (Ent) then
+ Set_Obsolescent (Ent);
+ return;
+ end if;
+ end;
+ end if;
- when Pragma_Normalize_Scalars =>
- Check_Ada_83_Warning;
- Check_Arg_Count (0);
- Check_Valid_Configuration_Pragma;
- Normalize_Scalars := True;
- Init_Or_Norm_Scalars := True;
+ -- Cases where we must follow a declaration
+
+ else
+ if Nkind (Decl) not in N_Declaration
+ and then Nkind (Decl) not in N_Later_Decl_Item
+ and then Nkind (Decl) not in N_Generic_Declaration
+ then
+ Error_Pragma
+ ("pragma% misplaced, " &
+ "must immediately follow a declaration");
+
+ else
+ Set_Obsolescent (Defining_Entity (Decl));
+ return;
+ end if;
+ end if;
+ end Obsolescent;
--------------
-- Optimize --
--------------
- -- pragma Optimize (Time | Space);
+ -- pragma Optimize (Time | Space | Off);
-- The actual check for optimize is done in Gigi. Note that this
-- pragma does not actually change the optimization setting, it
Check_Arg_Count (1);
Check_Arg_Is_One_Of (Arg1, Name_Time, Name_Space, Name_Off);
- -------------------------
- -- Optional_Overriding --
- -------------------------
+ ------------------------
+ -- Optimize_Alignment --
+ ------------------------
- -- These pragmas are treated as part of the previous subprogram
- -- declaration, and analyzed immediately after it (see sem_ch6,
- -- Check_Overriding_Operation). If the pragma has not been analyzed
- -- yet, it appears in the wrong place.
+ -- pragma Optimize_Alignment (Time | Space | Off);
- when Pragma_Optional_Overriding =>
- Error_Msg_N ("pragma must appear immediately after subprogram", N);
+ when Pragma_Optimize_Alignment =>
+ GNAT_Pragma;
+ Check_No_Identifiers;
+ Check_Arg_Count (1);
+ Check_Valid_Configuration_Pragma;
- ----------------
- -- Overriding --
- ----------------
+ declare
+ Nam : constant Name_Id := Chars (Get_Pragma_Arg (Arg1));
+ begin
+ case Nam is
+ when Name_Time =>
+ Opt.Optimize_Alignment := 'T';
+ when Name_Space =>
+ Opt.Optimize_Alignment := 'S';
+ when Name_Off =>
+ Opt.Optimize_Alignment := 'O';
+ when others =>
+ Error_Pragma_Arg ("invalid argument for pragma%", Arg1);
+ end case;
+ end;
- when Pragma_Overriding =>
- Error_Msg_N ("pragma must appear immediately after subprogram", N);
+ -- Set indication that mode is set locally. If we are in fact in a
+ -- configuration pragma file, this setting is harmless since the
+ -- switch will get reset anyway at the start of each unit.
+
+ Optimize_Alignment_Local := True;
----------
-- Pack --
if Has_Pragma_Pack (Typ) then
Error_Pragma ("duplicate pragma%, only one allowed");
- -- Array type. We set the Has_Pragma_Pack flag, and Is_Packed,
- -- but not Has_Non_Standard_Rep, because we don't actually know
- -- till freeze time if the array can have packed representation.
- -- That's because in the general case we do not know enough about
- -- the component type until it in turn is frozen, which certainly
- -- happens before the array type is frozen, but not necessarily
- -- till that point (i.e. right now it may be unfrozen).
+ -- Array type
elsif Is_Array_Type (Typ) then
+
+ -- Pack not allowed for aliased or atomic components
+
if Has_Aliased_Components (Base_Type (Typ)) then
Error_Pragma
("pragma% ignored, cannot pack aliased components?");
then
Error_Pragma
("?pragma% ignored, cannot pack atomic components");
+ end if;
- elsif not Rep_Item_Too_Late (Typ, N) then
- Set_Is_Packed (Base_Type (Typ));
- Set_Has_Pragma_Pack (Base_Type (Typ));
- Set_Has_Non_Standard_Rep (Base_Type (Typ));
+ -- If we had an explicit component size given, then we do not
+ -- let Pack override this given size. We also give a warning
+ -- that Pack is being ignored unless we can tell for sure that
+ -- the Pack would not have had any effect anyway.
+
+ if Has_Component_Size_Clause (Typ) then
+ if Known_Static_RM_Size (Component_Type (Typ))
+ and then
+ RM_Size (Component_Type (Typ)) = Component_Size (Typ)
+ then
+ null;
+ else
+ Error_Pragma
+ ("?pragma% ignored, explicit component size given");
+ end if;
+
+ -- If no prior array component size given, Pack is effective
+
+ else
+ if not Rep_Item_Too_Late (Typ, N) then
+ if VM_Target = No_VM then
+ Set_Is_Packed (Base_Type (Typ));
+ elsif not GNAT_Mode then
+ Error_Pragma
+ ("?pragma% ignored in this configuration");
+ end if;
+
+ Set_Has_Pragma_Pack (Base_Type (Typ));
+ Set_Has_Non_Standard_Rep (Base_Type (Typ));
+ end if;
end if;
- -- Record type. For record types, the pack is always effective
+ -- For record types, the pack is always effective
else pragma Assert (Is_Record_Type (Typ));
if not Rep_Item_Too_Late (Typ, N) then
+ if VM_Target = No_VM then
+ Set_Is_Packed (Base_Type (Typ));
+ elsif not GNAT_Mode then
+ Error_Pragma ("?pragma% ignored in this configuration");
+ end if;
+
Set_Has_Pragma_Pack (Base_Type (Typ));
- Set_Is_Packed (Base_Type (Typ));
Set_Has_Non_Standard_Rep (Base_Type (Typ));
end if;
end if;
Check_Arg_Is_One_Of (Arg1, Name_Semaphore, Name_No);
end if;
+ ----------------------------------
+ -- Preelaborable_Initialization --
+ ----------------------------------
+
+ -- pragma Preelaborable_Initialization (DIRECT_NAME);
+
+ when Pragma_Preelaborable_Initialization => Preelab_Init : declare
+ Ent : Entity_Id;
+
+ begin
+ Ada_2005_Pragma;
+ Check_Arg_Count (1);
+ Check_No_Identifiers;
+ Check_Arg_Is_Identifier (Arg1);
+ Check_Arg_Is_Local_Name (Arg1);
+ Check_First_Subtype (Arg1);
+ Ent := Entity (Expression (Arg1));
+
+ if not Is_Private_Type (Ent)
+ and then not Is_Protected_Type (Ent)
+ then
+ Error_Pragma_Arg
+ ("pragma % can only be applied to private or protected type",
+ Arg1);
+ end if;
+
+ -- Give an error if the pragma is applied to a protected type that
+ -- does not qualify (due to having entries, or due to components
+ -- that do not qualify).
+
+ if Is_Protected_Type (Ent)
+ and then not Has_Preelaborable_Initialization (Ent)
+ then
+ Error_Msg_N
+ ("protected type & does not have preelaborable " &
+ "initialization", Ent);
+
+ -- Otherwise mark the type as definitely having preelaborable
+ -- initialization.
+
+ else
+ Set_Known_To_Have_Preelab_Init (Ent);
+ end if;
+
+ if Has_Pragma_Preelab_Init (Ent)
+ and then Warn_On_Redundant_Constructs
+ then
+ Error_Pragma ("?duplicate pragma%!");
+ else
+ Set_Has_Pragma_Preelab_Init (Ent);
+ end if;
+ end Preelab_Init;
+
+ --------------------
+ -- Persistent_BSS --
+ --------------------
+
+ when Pragma_Persistent_BSS => Persistent_BSS : declare
+ Decl : Node_Id;
+ Ent : Entity_Id;
+ Prag : Node_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_At_Most_N_Arguments (1);
+
+ -- Case of application to specific object (one argument)
+
+ if Arg_Count = 1 then
+ Check_Arg_Is_Library_Level_Local_Name (Arg1);
+
+ if not Is_Entity_Name (Expression (Arg1))
+ or else
+ (Ekind (Entity (Expression (Arg1))) /= E_Variable
+ and then Ekind (Entity (Expression (Arg1))) /= E_Constant)
+ then
+ Error_Pragma_Arg ("pragma% only applies to objects", Arg1);
+ end if;
+
+ Ent := Entity (Expression (Arg1));
+ Decl := Parent (Ent);
+
+ if Rep_Item_Too_Late (Ent, N) then
+ return;
+ end if;
+
+ if Present (Expression (Decl)) then
+ Error_Pragma_Arg
+ ("object for pragma% cannot have initialization", Arg1);
+ end if;
+
+ if not Is_Potentially_Persistent_Type (Etype (Ent)) then
+ Error_Pragma_Arg
+ ("object type for pragma% is not potentially persistent",
+ Arg1);
+ end if;
+
+ Prag :=
+ Make_Linker_Section_Pragma
+ (Ent, Sloc (N), ".persistent.bss");
+ Insert_After (N, Prag);
+ Analyze (Prag);
+
+ -- Case of use as configuration pragma with no arguments
+
+ else
+ Check_Valid_Configuration_Pragma;
+ Persistent_BSS_Mode := True;
+ end if;
+ end Persistent_BSS;
+
-------------
-- Polling --
-------------
Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off);
Polling_Required := (Chars (Expression (Arg1)) = Name_On);
- ---------------------
- -- Persistent_Data --
- ---------------------
+ -------------------
+ -- Postcondition --
+ -------------------
- when Pragma_Persistent_Data => declare
- Ent : Entity_Id;
+ -- pragma Postcondition ([Check =>] Boolean_Expression
+ -- [,[Message =>] String_Expression]);
- begin
- -- Register the pragma as applying to the compilation unit.
- -- Individual Persistent_Object pragmas for relevant objects
- -- are generated the end of the compilation.
+ when Pragma_Postcondition => Postcondition : declare
+ In_Body : Boolean;
+ pragma Warnings (Off, In_Body);
+ begin
GNAT_Pragma;
- Check_Valid_Configuration_Pragma;
- Check_Arg_Count (0);
- Ent := Find_Lib_Unit_Name;
- Set_Is_Preelaborated (Ent);
- end;
+ Check_At_Least_N_Arguments (1);
+ Check_At_Most_N_Arguments (2);
+ Check_Optional_Identifier (Arg1, Name_Check);
- -----------------------
- -- Persistent_Object --
- -----------------------
+ -- All we need to do here is call the common check procedure,
+ -- the remainder of the processing is found in Sem_Ch6/Sem_Ch7.
- when Pragma_Persistent_Object => declare
- Decl : Node_Id;
- Ent : Entity_Id;
- MA : Node_Id;
- Str : String_Id;
+ Check_Precondition_Postcondition (In_Body);
+ end Postcondition;
- begin
- GNAT_Pragma;
- Check_Arg_Count (1);
- Check_Arg_Is_Library_Level_Local_Name (Arg1);
+ ------------------
+ -- Precondition --
+ ------------------
- if not Is_Entity_Name (Expression (Arg1))
- or else
- (Ekind (Entity (Expression (Arg1))) /= E_Variable
- and then Ekind (Entity (Expression (Arg1))) /= E_Constant)
- then
- Error_Pragma_Arg ("pragma only applies to objects", Arg1);
- end if;
+ -- pragma Precondition ([Check =>] Boolean_Expression
+ -- [,[Message =>] String_Expression]);
- Ent := Entity (Expression (Arg1));
- Decl := Parent (Ent);
+ when Pragma_Precondition => Precondition : declare
+ In_Body : Boolean;
- if Nkind (Decl) /= N_Object_Declaration then
- return;
- end if;
+ begin
+ GNAT_Pragma;
+ Check_At_Least_N_Arguments (1);
+ Check_At_Most_N_Arguments (2);
+ Check_Optional_Identifier (Arg1, Name_Check);
- -- Placement of the object depends on whether there is
- -- an initial value or none. If the No_Initialization flag
- -- is set, the initialization has been transformed into
- -- assignments, which is disallowed elaboration code.
+ Check_Precondition_Postcondition (In_Body);
- if No_Initialization (Decl) then
- Error_Msg_N
- ("initialization for persistent object"
- & "must be static expression", Decl);
- return;
- end if;
+ -- If in spec, nothing to do. If in body, then we convert the
+ -- pragma to pragma Check (Precondition, cond [, msg]). Note we
+ -- do this whether or not precondition checks are enabled. That
+ -- works fine since pragma Check will do this check.
- if No (Expression (Decl)) then
- Start_String;
- Store_String_Chars ("section ("".persistent.bss"")");
- Str := End_String;
+ if In_Body then
+ if Arg_Count = 2 then
+ Check_Optional_Identifier (Arg3, Name_Message);
+ Analyze_And_Resolve (Get_Pragma_Arg (Arg2), Standard_String);
+ end if;
- else
- if not Is_OK_Static_Expression (Expression (Decl)) then
- Flag_Non_Static_Expr
- ("initialization for persistent object"
- & "must be static expression!", Expression (Decl));
- return;
+ Analyze_And_Resolve (Get_Pragma_Arg (Arg1), Standard_Boolean);
+
+ Rewrite (N,
+ Make_Pragma (Loc,
+ Chars => Name_Check,
+ Pragma_Argument_Associations => New_List (
+ Make_Pragma_Argument_Association (Loc,
+ Expression =>
+ Make_Identifier (Loc,
+ Chars => Name_Precondition)),
+
+ Make_Pragma_Argument_Association (Sloc (Arg1),
+ Expression => Relocate_Node (Get_Pragma_Arg (Arg1))))));
+
+ if Arg_Count = 2 then
+ Append_To (Pragma_Argument_Associations (N),
+ Make_Pragma_Argument_Association (Sloc (Arg2),
+ Expression => Relocate_Node (Get_Pragma_Arg (Arg2))));
end if;
- Start_String;
- Store_String_Chars ("section ("".persistent.data"")");
- Str := End_String;
- end if;
-
- MA :=
- Make_Pragma
- (Sloc (N),
- Name_Machine_Attribute,
- New_List
- (Make_Pragma_Argument_Association
- (Sloc => Sloc (Arg1),
- Expression => New_Occurrence_Of (Ent, Sloc (Ent))),
- Make_Pragma_Argument_Association
- (Sloc => Sloc (Arg1),
- Expression =>
- Make_String_Literal
- (Sloc => Sloc (Arg1),
- Strval => Str))));
-
- Insert_After (N, MA);
- Analyze (MA);
- Set_Has_Gigi_Rep_Item (Ent);
- end;
+ Analyze (N);
+ end if;
+ end Precondition;
------------------
-- Preelaborate --
Ent : Entity_Id;
begin
- Check_Ada_83_Warning;
+ Check_Ada_83_Warning;
+ Check_Valid_Library_Unit_Pragma;
+
+ if Nkind (N) = N_Null_Statement then
+ return;
+ end if;
+
+ Ent := Find_Lib_Unit_Name;
+
+ -- This filters out pragmas inside generic parent then
+ -- show up inside instantiation
+
+ if Present (Ent)
+ and then not (Pk = N_Package_Specification
+ and then Present (Generic_Parent (Pa)))
+ then
+ if not Debug_Flag_U then
+ Set_Is_Preelaborated (Ent);
+ Set_Suppress_Elaboration_Warnings (Ent);
+ end if;
+ end if;
+ end Preelaborate;
+
+ ---------------------
+ -- Preelaborate_05 --
+ ---------------------
+
+ -- pragma Preelaborate_05 [(library_unit_NAME)];
+
+ -- This pragma is useable only in GNAT_Mode, where it is used like
+ -- pragma Preelaborate but it is only effective in Ada 2005 mode
+ -- (otherwise it is ignored). This is used to implement AI-362 which
+ -- recategorizes some run-time packages in Ada 2005 mode.
+
+ when Pragma_Preelaborate_05 => Preelaborate_05 : declare
+ Ent : Entity_Id;
+
+ begin
+ GNAT_Pragma;
Check_Valid_Library_Unit_Pragma;
+ if not GNAT_Mode then
+ Error_Pragma ("pragma% only available in GNAT mode");
+ end if;
+
if Nkind (N) = N_Null_Statement then
return;
end if;
- Ent := Find_Lib_Unit_Name;
-
- -- This filters out pragmas inside generic parent then
- -- show up inside instantiation
+ -- This is one of the few cases where we need to test the value of
+ -- Ada_Version_Explicit rather than Ada_Version (which is always
+ -- set to Ada_05 in a predefined unit), we need to know the
+ -- explicit version set to know if this pragma is active.
- if Present (Ent)
- and then not (Pk = N_Package_Specification
- and then Present (Generic_Parent (Pa)))
- then
- if not Debug_Flag_U then
- Set_Is_Preelaborated (Ent);
- Set_Suppress_Elaboration_Warnings (Ent);
- end if;
+ if Ada_Version_Explicit >= Ada_05 then
+ Ent := Find_Lib_Unit_Name;
+ Set_Is_Preelaborated (Ent);
+ Set_Suppress_Elaboration_Warnings (Ent);
end if;
- end Preelaborate;
+ end Preelaborate_05;
--------------
-- Priority --
end if;
Set_Main_Priority
- (Current_Sem_Unit, UI_To_Int (Expr_Value (Arg)));
+ (Current_Sem_Unit, UI_To_Int (Expr_Value (Arg)));
+
+ -- Load an arbitrary entity from System.Tasking to make sure
+ -- this package is implicitly with'ed, since we need to have
+ -- the tasking run-time active for the pragma Priority to have
+ -- any effect.
+
+ declare
+ Discard : Entity_Id;
+ pragma Warnings (Off, Discard);
+ begin
+ Discard := RTE (RE_Task_List);
+ end;
-- Task or Protected, must be of type Integer
-- described in "Handling of Default and Per-Object
-- Expressions" in sem.ads.
- Analyze_Per_Use_Expression (Arg, Standard_Integer);
+ Preanalyze_Spec_Expression (Arg, Standard_Integer);
if not Is_Static_Expression (Arg) then
Check_Restriction (Static_Priorities, Arg);
end if;
end Priority;
+ -----------------------------------
+ -- Priority_Specific_Dispatching --
+ -----------------------------------
+
+ -- pragma Priority_Specific_Dispatching (
+ -- policy_IDENTIFIER,
+ -- first_priority_EXPRESSION,
+ -- last_priority_EXPRESSION);
+
+ when Pragma_Priority_Specific_Dispatching =>
+ Priority_Specific_Dispatching : declare
+ Prio_Id : constant Entity_Id := RTE (RE_Any_Priority);
+ -- This is the entity System.Any_Priority;
+
+ DP : Character;
+ Lower_Bound : Node_Id;
+ Upper_Bound : Node_Id;
+ Lower_Val : Uint;
+ Upper_Val : Uint;
+
+ begin
+ Ada_2005_Pragma;
+ Check_Arg_Count (3);
+ Check_No_Identifiers;
+ Check_Arg_Is_Task_Dispatching_Policy (Arg1);
+ Check_Valid_Configuration_Pragma;
+ Get_Name_String (Chars (Expression (Arg1)));
+ DP := Fold_Upper (Name_Buffer (1));
+
+ Lower_Bound := Expression (Arg2);
+ Check_Arg_Is_Static_Expression (Lower_Bound, Standard_Integer);
+ Lower_Val := Expr_Value (Lower_Bound);
+
+ Upper_Bound := Expression (Arg3);
+ Check_Arg_Is_Static_Expression (Upper_Bound, Standard_Integer);
+ Upper_Val := Expr_Value (Upper_Bound);
+
+ -- It is not allowed to use Task_Dispatching_Policy and
+ -- Priority_Specific_Dispatching in the same partition.
+
+ if Task_Dispatching_Policy /= ' ' then
+ Error_Msg_Sloc := Task_Dispatching_Policy_Sloc;
+ Error_Pragma
+ ("pragma% incompatible with Task_Dispatching_Policy#");
+
+ -- Check lower bound in range
+
+ elsif Lower_Val < Expr_Value (Type_Low_Bound (Prio_Id))
+ or else
+ Lower_Val > Expr_Value (Type_High_Bound (Prio_Id))
+ then
+ Error_Pragma_Arg
+ ("first_priority is out of range", Arg2);
+
+ -- Check upper bound in range
+
+ elsif Upper_Val < Expr_Value (Type_Low_Bound (Prio_Id))
+ or else
+ Upper_Val > Expr_Value (Type_High_Bound (Prio_Id))
+ then
+ Error_Pragma_Arg
+ ("last_priority is out of range", Arg3);
+
+ -- Check that the priority range is valid
+
+ elsif Lower_Val > Upper_Val then
+ Error_Pragma
+ ("last_priority_expression must be greater than" &
+ " or equal to first_priority_expression");
+
+ -- Store the new policy, but always preserve System_Location since
+ -- we like the error message with the run-time name.
+
+ else
+ -- Check overlapping in the priority ranges specified in other
+ -- Priority_Specific_Dispatching pragmas within the same
+ -- partition. We can only check those we know about!
+
+ for J in
+ Specific_Dispatching.First .. Specific_Dispatching.Last
+ loop
+ if Specific_Dispatching.Table (J).First_Priority in
+ UI_To_Int (Lower_Val) .. UI_To_Int (Upper_Val)
+ or else Specific_Dispatching.Table (J).Last_Priority in
+ UI_To_Int (Lower_Val) .. UI_To_Int (Upper_Val)
+ then
+ Error_Msg_Sloc :=
+ Specific_Dispatching.Table (J).Pragma_Loc;
+ Error_Pragma
+ ("priority range overlaps with "
+ & "Priority_Specific_Dispatching#");
+ end if;
+ end loop;
+
+ -- The use of Priority_Specific_Dispatching is incompatible
+ -- with Task_Dispatching_Policy.
+
+ if Task_Dispatching_Policy /= ' ' then
+ Error_Msg_Sloc := Task_Dispatching_Policy_Sloc;
+ Error_Pragma
+ ("Priority_Specific_Dispatching incompatible "
+ & "with Task_Dispatching_Policy#");
+ end if;
+
+ -- The use of Priority_Specific_Dispatching forces ceiling
+ -- locking policy.
+
+ if Locking_Policy /= ' ' and then Locking_Policy /= 'C' then
+ Error_Msg_Sloc := Locking_Policy_Sloc;
+ Error_Pragma
+ ("Priority_Specific_Dispatching incompatible "
+ & "with Locking_Policy#");
+
+ -- Set the Ceiling_Locking policy, but preserve System_Location
+ -- since we like the error message with the run time name.
+
+ else
+ Locking_Policy := 'C';
+
+ if Locking_Policy_Sloc /= System_Location then
+ Locking_Policy_Sloc := Loc;
+ end if;
+ end if;
+
+ -- Add entry in the table
+
+ Specific_Dispatching.Append
+ ((Dispatching_Policy => DP,
+ First_Priority => UI_To_Int (Lower_Val),
+ Last_Priority => UI_To_Int (Upper_Val),
+ Pragma_Loc => Loc));
+ end if;
+ end Priority_Specific_Dispatching;
+
-------------
-- Profile --
-------------
-- pragma Profile (profile_IDENTIFIER);
- -- profile_IDENTIFIER => Ravenscar
+ -- profile_IDENTIFIER => Restricted | Ravenscar
when Pragma_Profile =>
- GNAT_Pragma;
+ Ada_2005_Pragma;
Check_Arg_Count (1);
Check_Valid_Configuration_Pragma;
Check_No_Identifiers;
begin
if Chars (Argx) = Name_Ravenscar then
Set_Ravenscar_Profile (N);
+ elsif Chars (Argx) = Name_Restricted then
+ Set_Profile_Restrictions
+ (Restricted, N, Warn => Treat_Restrictions_As_Warnings);
+ else
+ Error_Pragma_Arg ("& is not a valid profile", Argx);
+ end if;
+ end;
+
+ ----------------------
+ -- Profile_Warnings --
+ ----------------------
+
+ -- pragma Profile_Warnings (profile_IDENTIFIER);
+
+ -- profile_IDENTIFIER => Restricted | Ravenscar
+
+ when Pragma_Profile_Warnings =>
+ GNAT_Pragma;
+ Check_Arg_Count (1);
+ Check_Valid_Configuration_Pragma;
+ Check_No_Identifiers;
+
+ declare
+ Argx : constant Node_Id := Get_Pragma_Arg (Arg1);
+ begin
+ if Chars (Argx) = Name_Ravenscar then
+ Set_Profile_Restrictions (Ravenscar, N, Warn => True);
+ elsif Chars (Argx) = Name_Restricted then
+ Set_Profile_Restrictions (Restricted, N, Warn => True);
else
Error_Pragma_Arg ("& is not a valid profile", Argx);
end if;
-- pragma Propagate_Exceptions;
+ -- Note: this pragma is obsolete and has no effect
+
when Pragma_Propagate_Exceptions =>
GNAT_Pragma;
Check_Arg_Count (0);
External : Node_Id renames Args (2);
Size : Node_Id renames Args (3);
- R_Internal : Node_Id;
- R_External : Node_Id;
-
- MA : Node_Id;
- Str : String_Id;
-
- Def_Id : Entity_Id;
+ Def_Id : Entity_Id;
procedure Check_Too_Long (Arg : Node_Id);
-- Posts message if the argument is an identifier with more
Gather_Associations (Names, Args);
Process_Extended_Import_Export_Internal_Arg (Internal);
- R_Internal := Relocate_Node (Internal);
-
- Def_Id := Entity (R_Internal);
+ Def_Id := Entity (Internal);
if Ekind (Def_Id) /= E_Constant
and then Ekind (Def_Id) /= E_Variable
("pragma% must designate an object", Internal);
end if;
- Check_Too_Long (R_Internal);
+ Check_Too_Long (Internal);
if Is_Imported (Def_Id) or else Is_Exported (Def_Id) then
Error_Pragma_Arg
("cannot use pragma% for imported/exported object",
- R_Internal);
+ Internal);
end if;
- if Is_Concurrent_Type (Etype (R_Internal)) then
+ if Is_Concurrent_Type (Etype (Internal)) then
Error_Pragma_Arg
("cannot specify pragma % for task/protected object",
- R_Internal);
+ Internal);
end if;
- if Is_Psected (Def_Id) then
- Error_Msg_N ("?duplicate Psect_Object pragma", N);
- else
- Set_Is_Psected (Def_Id);
+ if Has_Rep_Pragma (Def_Id, Name_Common_Object)
+ or else
+ Has_Rep_Pragma (Def_Id, Name_Psect_Object)
+ then
+ Error_Msg_N ("?duplicate Common/Psect_Object pragma", N);
end if;
if Ekind (Def_Id) = E_Constant then
Error_Pragma_Arg
- ("cannot specify pragma % for a constant", R_Internal);
+ ("cannot specify pragma % for a constant", Internal);
end if;
- if Is_Record_Type (Etype (R_Internal)) then
+ if Is_Record_Type (Etype (Internal)) then
declare
Ent : Entity_Id;
Decl : Entity_Id;
begin
- Ent := First_Entity (Etype (R_Internal));
+ Ent := First_Entity (Etype (Internal));
while Present (Ent) loop
Decl := Declaration_Node (Ent);
and then Warn_On_Export_Import
then
Error_Msg_N
- ("?object for pragma % has defaults", R_Internal);
+ ("?object for pragma % has defaults", Internal);
exit;
else
Check_Too_Long (Size);
end if;
- -- Make Psect case-insensitive.
-
if Present (External) then
+ Check_Arg_Is_External_Name (External);
Check_Too_Long (External);
-
- if Nkind (External) = N_String_Literal then
- String_To_Name_Buffer (Strval (External));
- else
- Get_Name_String (Chars (External));
- end if;
-
- Set_All_Upper_Case;
- Start_String;
- Store_String_Chars (Name_Buffer (1 .. Name_Len));
- Str := End_String;
- R_External := Make_String_Literal
- (Sloc => Sloc (External), Strval => Str);
- else
- Get_Name_String (Chars (Internal));
- Set_All_Upper_Case;
- Start_String;
- Store_String_Chars (Name_Buffer (1 .. Name_Len));
- Str := End_String;
- R_External := Make_String_Literal
- (Sloc => Sloc (Internal), Strval => Str);
end if;
- -- Transform into pragma Linker_Section, add attributes to
- -- match what DEC Ada does. Ignore size for now?
-
- Rewrite (N,
- Make_Pragma
- (Sloc (N),
- Name_Linker_Section,
- New_List
- (Make_Pragma_Argument_Association
- (Sloc => Sloc (R_Internal),
- Expression => R_Internal),
- Make_Pragma_Argument_Association
- (Sloc => Sloc (R_External),
- Expression => R_External))));
-
- Analyze (N);
-
- -- Add Machine_Attribute of "overlaid", so the section overlays
- -- other sections of the same name.
-
- Start_String;
- Store_String_Chars ("overlaid");
- Str := End_String;
-
- MA :=
- Make_Pragma
- (Sloc (N),
- Name_Machine_Attribute,
- New_List
- (Make_Pragma_Argument_Association
- (Sloc => Sloc (R_Internal),
- Expression => R_Internal),
- Make_Pragma_Argument_Association
- (Sloc => Sloc (R_External),
- Expression =>
- Make_String_Literal
- (Sloc => Sloc (R_External),
- Strval => Str))));
- Analyze (MA);
-
- -- Add Machine_Attribute of "global", so the section is visible
- -- everywhere
-
- Start_String;
- Store_String_Chars ("global");
- Str := End_String;
-
- MA :=
- Make_Pragma
- (Sloc (N),
- Name_Machine_Attribute,
- New_List
- (Make_Pragma_Argument_Association
- (Sloc => Sloc (R_Internal),
- Expression => R_Internal),
-
- Make_Pragma_Argument_Association
- (Sloc => Sloc (R_External),
- Expression =>
- Make_String_Literal
- (Sloc => Sloc (R_External),
- Strval => Str))));
- Analyze (MA);
-
- -- Add Machine_Attribute of "initialize", so the section is
- -- demand zeroed.
+ -- If all error tests pass, link pragma on to the rep item chain
- Start_String;
- Store_String_Chars ("initialize");
- Str := End_String;
-
- MA :=
- Make_Pragma
- (Sloc (N),
- Name_Machine_Attribute,
- New_List
- (Make_Pragma_Argument_Association
- (Sloc => Sloc (R_Internal),
- Expression => R_Internal),
-
- Make_Pragma_Argument_Association
- (Sloc => Sloc (R_External),
- Expression =>
- Make_String_Literal
- (Sloc => Sloc (R_External),
- Strval => Str))));
- Analyze (MA);
+ Record_Rep_Item (Def_Id, N);
end Psect_Object;
----------
when Pragma_Pure => Pure : declare
Ent : Entity_Id;
+
begin
Check_Ada_83_Warning;
Check_Valid_Library_Unit_Pragma;
Ent := Find_Lib_Unit_Name;
Set_Is_Pure (Ent);
+ Set_Has_Pragma_Pure (Ent);
Set_Suppress_Elaboration_Warnings (Ent);
end Pure;
+ -------------
+ -- Pure_05 --
+ -------------
+
+ -- pragma Pure_05 [(library_unit_NAME)];
+
+ -- This pragma is useable only in GNAT_Mode, where it is used like
+ -- pragma Pure but it is only effective in Ada 2005 mode (otherwise
+ -- it is ignored). It may be used after a pragma Preelaborate, in
+ -- which case it overrides the effect of the pragma Preelaborate.
+ -- This is used to implement AI-362 which recategorizes some run-time
+ -- packages in Ada 2005 mode.
+
+ when Pragma_Pure_05 => Pure_05 : declare
+ Ent : Entity_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_Valid_Library_Unit_Pragma;
+
+ if not GNAT_Mode then
+ Error_Pragma ("pragma% only available in GNAT mode");
+ end if;
+ if Nkind (N) = N_Null_Statement then
+ return;
+ end if;
+
+ -- This is one of the few cases where we need to test the value of
+ -- Ada_Version_Explicit rather than Ada_Version (which is always
+ -- set to Ada_05 in a predefined unit), we need to know the
+ -- explicit version set to know if this pragma is active.
+
+ if Ada_Version_Explicit >= Ada_05 then
+ Ent := Find_Lib_Unit_Name;
+ Set_Is_Preelaborated (Ent, False);
+ Set_Is_Pure (Ent);
+ Set_Suppress_Elaboration_Warnings (Ent);
+ end if;
+ end Pure_05;
+
-------------------
-- Pure_Function --
-------------------
end if;
end;
+ -----------------------
+ -- Relative_Deadline --
+ -----------------------
+
+ -- pragma Relative_Deadline (time_span_EXPRESSION);
+
+ when Pragma_Relative_Deadline => Relative_Deadline : declare
+ P : constant Node_Id := Parent (N);
+ Arg : Node_Id;
+
+ begin
+ Ada_2005_Pragma;
+ Check_No_Identifiers;
+ Check_Arg_Count (1);
+
+ Arg := Expression (Arg1);
+
+ -- The expression must be analyzed in the special manner described
+ -- in "Handling of Default and Per-Object Expressions" in sem.ads.
+
+ Preanalyze_Spec_Expression (Arg, RTE (RE_Time_Span));
+
+ -- Subprogram case
+
+ if Nkind (P) = N_Subprogram_Body then
+ Check_In_Main_Program;
+
+ -- Tasks
+
+ elsif Nkind (P) = N_Task_Definition then
+ null;
+
+ -- Anything else is incorrect
+
+ else
+ Pragma_Misplaced;
+ end if;
+
+ if Has_Relative_Deadline_Pragma (P) then
+ Error_Pragma ("duplicate pragma% not allowed");
+ else
+ Set_Has_Relative_Deadline_Pragma (P, True);
+
+ if Nkind (P) = N_Task_Definition then
+ Record_Rep_Item (Defining_Identifier (Parent (P)), N);
+ end if;
+ end if;
+ end Relative_Deadline;
+
---------------------------
-- Remote_Call_Interface --
---------------------------
Check_Valid_Configuration_Pragma;
Set_Ravenscar_Profile (N);
+ if Warn_On_Obsolescent_Feature then
+ Error_Msg_N
+ ("pragma Ravenscar is an obsolescent feature?", N);
+ Error_Msg_N
+ ("|use pragma Profile (Ravenscar) instead", N);
+ end if;
+
-------------------------
-- Restricted_Run_Time --
-------------------------
GNAT_Pragma;
Check_Arg_Count (0);
Check_Valid_Configuration_Pragma;
- Set_Restricted_Profile (N);
+ Set_Profile_Restrictions
+ (Restricted, N, Warn => Treat_Restrictions_As_Warnings);
+
+ if Warn_On_Obsolescent_Feature then
+ Error_Msg_N
+ ("pragma Restricted_Run_Time is an obsolescent feature?", N);
+ Error_Msg_N
+ ("|use pragma Profile (Restricted) instead", N);
+ end if;
------------------
-- Restrictions --
-- | restriction_parameter_IDENTIFIER => EXPRESSION
when Pragma_Restrictions =>
- Process_Restrictions_Or_Restriction_Warnings;
+ Process_Restrictions_Or_Restriction_Warnings
+ (Warn => Treat_Restrictions_As_Warnings);
--------------------------
-- Restriction_Warnings --
-- | restriction_parameter_IDENTIFIER => EXPRESSION
when Pragma_Restriction_Warnings =>
- Process_Restrictions_Or_Restriction_Warnings;
+ GNAT_Pragma;
+ Process_Restrictions_Or_Restriction_Warnings (Warn => True);
----------------
-- Reviewable --
when Pragma_Reviewable =>
Check_Ada_83_Warning;
Check_Arg_Count (0);
+ rv;
-------------------
-- Share_Generic --
when Pragma_Source_Reference =>
GNAT_Pragma;
+ --------------------------------
+ -- Static_Elaboration_Desired --
+ --------------------------------
+
+ -- pragma Static_Elaboration_Desired (DIRECT_NAME);
+
+ when Pragma_Static_Elaboration_Desired =>
+ GNAT_Pragma;
+ Check_At_Most_N_Arguments (1);
+
+ if Is_Compilation_Unit (Current_Scope)
+ and then Ekind (Current_Scope) = E_Package
+ then
+ Set_Static_Elaboration_Desired (Current_Scope, True);
+ else
+ Error_Pragma ("pragma% must apply to a library-level package");
+ end if;
+
------------------
-- Storage_Size --
------------------
Check_No_Identifiers;
Check_Arg_Count (1);
- -- The expression must be analyzed in the special manner
- -- described in "Handling of Default Expressions" in sem.ads.
-
- -- Set In_Default_Expression for per-object case ???
+ -- The expression must be analyzed in the special manner described
+ -- in "Handling of Default Expressions" in sem.ads.
Arg := Expression (Arg1);
- Analyze_Per_Use_Expression (Arg, Any_Integer);
+ Preanalyze_Spec_Expression (Arg, Any_Integer);
if not Is_Static_Expression (Arg) then
Check_Restriction (Static_Storage_Size, Arg);
end if;
end Check_OK_Stream_Convert_Function;
- -- Start of procecessing for Stream_Convert
+ -- Start of processing for Stream_Convert
begin
GNAT_Pragma;
+ Check_Arg_Order ((Name_Entity, Name_Read, Name_Write));
Check_Arg_Count (3);
Check_Optional_Identifier (Arg1, Name_Entity);
Check_Optional_Identifier (Arg2, Name_Read);
Write : constant Entity_Id := Entity (Expression (Arg3));
begin
- if Etype (Typ) = Any_Type
- or else
- Etype (Read) = Any_Type
+ Check_First_Subtype (Arg1);
+
+ -- Check for too early or too late. Note that we don't enforce
+ -- the rule about primitive operations in this case, since, as
+ -- is the case for explicit stream attributes themselves, these
+ -- restrictions are not appropriate. Note that the chaining of
+ -- the pragma by Rep_Item_Too_Late is actually the critical
+ -- processing done for this pragma.
+
+ if Rep_Item_Too_Early (Typ, N)
or else
- Etype (Write) = Any_Type
+ Rep_Item_Too_Late (Typ, N, FOnly => True)
then
return;
end if;
- Check_First_Subtype (Arg1);
+ -- Return if previous error
- if Rep_Item_Too_Early (Typ, N)
+ if Etype (Typ) = Any_Type
+ or else
+ Etype (Read) = Any_Type
or else
- Rep_Item_Too_Late (Typ, N)
+ Etype (Write) = Any_Type
then
return;
end if;
+ -- Error checks
+
if Underlying_Type (Etype (Read)) /= Typ then
Error_Pragma_Arg
("incorrect return type for function&", Arg2);
exit when not In_Character_Range (C);
Options (J) := Get_Character (C);
+ -- If at end of string, set options. As per discussion
+ -- above, no need to check for errors, since we issued
+ -- them in the parser.
+
if J = Slen then
Set_Style_Check_Options (Options);
exit;
- else
- J := J + 1;
end if;
+
+ J := J + 1;
end loop;
end;
elsif Nkind (A) = N_Identifier then
-
if Chars (A) = Name_All_Checks then
Set_Default_Style_Check_Options;
elsif Chars (A) = Name_Off then
Style_Check := False;
-
end if;
end if;
end if;
when Pragma_Suppress_Debug_Info =>
GNAT_Pragma;
Check_Arg_Count (1);
- Check_Arg_Is_Local_Name (Arg1);
Check_Optional_Identifier (Arg1, Name_Entity);
+ Check_Arg_Is_Local_Name (Arg1);
Set_Debug_Info_Off (Entity (Get_Pragma_Arg (Arg1)));
----------------------------------
-- or the identifier GCC, no other identifiers are acceptable.
when Pragma_System_Name =>
+ GNAT_Pragma;
Check_No_Identifiers;
Check_Arg_Count (1);
Check_Arg_Is_One_Of (Arg1, Name_Gcc, Name_Gnat);
-- pragma Task_Name (string_EXPRESSION);
when Pragma_Task_Name => Task_Name : declare
- -- pragma Priority (EXPRESSION);
-
P : constant Node_Id := Parent (N);
Arg : Node_Id;
end if;
end Task_Storage;
- -----------------
- -- Thread_Body --
- -----------------
+ --------------------------
+ -- Thread_Local_Storage --
+ --------------------------
- -- pragma Thread_Body
- -- ( [Entity =>] LOCAL_NAME
- -- [,[Secondary_Stack_Size =>] static_integer_EXPRESSION]);
+ -- pragma Thread_Local_Storage ([Entity =>] LOCAL_NAME);
- when Pragma_Thread_Body => Thread_Body : declare
+ when Pragma_Thread_Local_Storage => Thread_Local_Storage : declare
Id : Node_Id;
- SS : Node_Id;
E : Entity_Id;
begin
GNAT_Pragma;
- Check_At_Least_N_Arguments (1);
- Check_At_Most_N_Arguments (2);
+ Check_Arg_Count (1);
Check_Optional_Identifier (Arg1, Name_Entity);
Check_Arg_Is_Local_Name (Arg1);
Id := Expression (Arg1);
+ Analyze (Id);
if not Is_Entity_Name (Id)
- or else not Is_Subprogram (Entity (Id))
+ or else Ekind (Entity (Id)) /= E_Variable
then
- Error_Pragma_Arg ("subprogram name required", Arg1);
+ Error_Pragma_Arg ("local variable name required", Arg1);
end if;
E := Entity (Id);
- -- Go to renamed subprogram if present, since Thread_Body applies
- -- to the actual renamed entity, not to the renaming entity.
-
- if Present (Alias (E))
- and then Nkind (Parent (Declaration_Node (E))) =
- N_Subprogram_Renaming_Declaration
- then
- E := Alias (E);
- end if;
-
- -- Various error checks
-
- if Nkind (Parent (Declaration_Node (E))) = N_Subprogram_Body then
- Error_Pragma
- ("pragma% requires separate spec and must come before body");
-
- elsif Rep_Item_Too_Early (E, N)
- or else
- Rep_Item_Too_Late (E, N)
+ if Rep_Item_Too_Early (E, N)
+ or else Rep_Item_Too_Late (E, N)
then
raise Pragma_Exit;
-
- elsif Is_Thread_Body (E) then
- Error_Pragma_Arg
- ("only one thread body pragma allowed", Arg1);
-
- elsif Present (Homonym (E))
- and then Scope (Homonym (E)) = Current_Scope
- then
- Error_Pragma_Arg
- ("thread body subprogram must not be overloaded", Arg1);
end if;
- Set_Is_Thread_Body (E);
-
- -- Deal with secondary stack argument
-
- if Arg_Count = 2 then
- Check_Optional_Identifier (Arg2, Name_Secondary_Stack_Size);
- SS := Expression (Arg2);
- Analyze_And_Resolve (SS, Any_Integer);
- end if;
- end Thread_Body;
+ Set_Has_Pragma_Thread_Local_Storage (E);
+ end Thread_Local_Storage;
----------------
-- Time_Slice --
Nod := Next (N);
while Present (Nod) loop
if Nkind (Nod) = N_Pragma
- and then Chars (Nod) = Name_Time_Slice
+ and then Pragma_Name (Nod) = Name_Time_Slice
then
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N ("duplicate pragma% not permitted", Nod);
end if;
Variant : Node_Id;
begin
- GNAT_Pragma;
+ Ada_2005_Pragma;
Check_No_Identifiers;
Check_Arg_Count (1);
Check_Arg_Is_Local_Name (Arg1);
end if;
Discr := First_Discriminant (Typ);
-
- if Present (Next_Discriminant (Discr)) then
- Error_Msg_N
- ("Unchecked_Union must have exactly one discriminant",
- Next_Discriminant (Discr));
- return;
- end if;
-
- if No (Discriminant_Default_Value (Discr)) then
- Error_Msg_N
- ("Unchecked_Union discriminant must have default value",
- Discr);
- end if;
+ while Present (Discr) loop
+ if No (Discriminant_Default_Value (Discr)) then
+ Error_Msg_N
+ ("Unchecked_Union discriminant must have default value",
+ Discr);
+ end if;
+ Next_Discriminant (Discr);
+ end loop;
Tdef := Type_Definition (Declaration_Node (Typ));
Clist := Component_List (Tdef);
+ Comp := First (Component_Items (Clist));
+ while Present (Comp) loop
+ Check_Component (Comp);
+ Next (Comp);
+ end loop;
+
if No (Clist) or else No (Variant_Part (Clist)) then
Error_Msg_N
("Unchecked_Union must have variant part",
Vpart := Variant_Part (Clist);
- if Is_Non_Empty_List (Component_Items (Clist)) then
- Error_Msg_N
- ("components before variant not allowed " &
- "in Unchecked_Union",
- First (Component_Items (Clist)));
- end if;
-
Variant := First (Variants (Vpart));
while Present (Variant) loop
- Clist := Component_List (Variant);
-
- if Present (Variant_Part (Clist)) then
- Error_Msg_N
- ("Unchecked_Union may not have nested variants",
- Variant_Part (Clist));
- end if;
-
- if not Is_Non_Empty_List (Component_Items (Clist)) then
- Error_Msg_N
- ("Unchecked_Union may not have empty component list",
- Variant);
- return;
- end if;
-
- Comp := First (Component_Items (Clist));
-
- if Nkind (Comp) = N_Component_Declaration then
-
- if Present (Expression (Comp)) then
- Error_Msg_N
- ("default initialization not allowed " &
- "in Unchecked_Union",
- Expression (Comp));
- end if;
-
- declare
- Sindic : constant Node_Id :=
- Subtype_Indication (Component_Definition (Comp));
-
- begin
- if Nkind (Sindic) = N_Subtype_Indication then
- Check_Static_Constraint (Constraint (Sindic));
- end if;
- end;
- end if;
-
- if Present (Next (Comp)) then
- Error_Msg_N
- ("Unchecked_Union variant can have only one component",
- Next (Comp));
- end if;
-
+ Check_Variant (Variant);
Next (Variant);
end loop;
end if;
Get_Name_String (Chars (Cunitent));
Set_Casing (Mixed_Case);
Write_Str (Name_Buffer (1 .. Name_Len));
- Write_Str (" is not implemented");
+ Write_Str (" is not supported in this configuration");
Write_Eol;
raise Unrecoverable_Error;
end if;
end Unimplemented_Unit;
+ ------------------------
+ -- Universal_Aliasing --
+ ------------------------
+
+ -- pragma Universal_Aliasing [([Entity =>] type_LOCAL_NAME)];
+
+ when Pragma_Universal_Aliasing => Universal_Alias : declare
+ E_Id : Entity_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_Arg_Count (1);
+ Check_Optional_Identifier (Arg2, Name_Entity);
+ Check_Arg_Is_Local_Name (Arg1);
+ E_Id := Entity (Expression (Arg1));
+
+ if E_Id = Any_Type then
+ return;
+ elsif No (E_Id) or else not Is_Type (E_Id) then
+ Error_Pragma_Arg ("pragma% requires type", Arg1);
+ end if;
+
+ Set_Universal_Aliasing (Implementation_Base_Type (E_Id));
+ end Universal_Alias;
+
--------------------
-- Universal_Data --
--------------------
Error_Pragma ("?pragma% ignored (applies only to AAMP)");
end if;
- ------------------
- -- Unreferenced --
- ------------------
+ ----------------
+ -- Unmodified --
+ ----------------
- -- pragma Unreferenced (local_Name {, local_Name});
+ -- pragma Unmodified (local_Name {, local_Name});
- when Pragma_Unreferenced => Unreferenced : declare
+ when Pragma_Unmodified => Unmodified : declare
Arg_Node : Node_Id;
Arg_Expr : Node_Id;
Arg_Ent : Entity_Id;
GNAT_Pragma;
Check_At_Least_N_Arguments (1);
- Arg_Node := Arg1;
+ -- Loop through arguments
+ Arg_Node := Arg1;
while Present (Arg_Node) loop
Check_No_Identifier (Arg_Node);
- -- Note that the analyze call done by Check_Arg_Is_Local_Name
- -- will in fact generate a reference, so that the entity will
- -- have a reference, which will inhibit any warnings about it
- -- not being referenced, and also properly show up in the ali
- -- file as a reference. But this reference is recorded before
- -- the Has_Pragma_Unreferenced flag is set, so that no warning
- -- is generated for this reference.
+ -- Note: the analyze call done by Check_Arg_Is_Local_Name
+ -- will in fact generate reference, so that the entity will
+ -- have a reference, which will inhibit any warnings about
+ -- it not being referenced, and also properly show up in the
+ -- ali file as a reference. But this reference is recorded
+ -- before the Has_Pragma_Unreferenced flag is set, so that
+ -- no warning is generated for this reference.
Check_Arg_Is_Local_Name (Arg_Node);
Arg_Expr := Get_Pragma_Arg (Arg_Node);
if Is_Entity_Name (Arg_Expr) then
Arg_Ent := Entity (Arg_Expr);
- -- If the entity is overloaded, the pragma applies to the
- -- most recent overloading, as documented. In this case,
- -- name resolution does not generate a reference, so it
- -- must be done here explicitly.
+ if not Is_Assignable (Arg_Ent) then
+ Error_Pragma_Arg
+ ("pragma% can only be applied to a variable",
+ Arg_Expr);
+ else
+ Set_Has_Pragma_Unmodified (Arg_Ent);
+ end if;
+ end if;
+
+ Next (Arg_Node);
+ end loop;
+ end Unmodified;
+
+ ------------------
+ -- Unreferenced --
+ ------------------
+
+ -- pragma Unreferenced (local_Name {, local_Name});
+
+ -- or when used in a context clause:
+
+ -- pragma Unreferenced (library_unit_NAME {, library_unit_NAME}
+
+ when Pragma_Unreferenced => Unreferenced : declare
+ Arg_Node : Node_Id;
+ Arg_Expr : Node_Id;
+ Arg_Ent : Entity_Id;
+ Citem : Node_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_At_Least_N_Arguments (1);
+
+ -- Check case of appearing within context clause
+
+ if Is_In_Context_Clause then
+
+ -- The arguments must all be units mentioned in a with clause
+ -- in the same context clause. Note we already checked (in
+ -- Par.Prag) that the arguments are either identifiers or
+ -- selected components.
+
+ Arg_Node := Arg1;
+ while Present (Arg_Node) loop
+ Citem := First (List_Containing (N));
+ while Citem /= N loop
+ if Nkind (Citem) = N_With_Clause
+ and then Same_Name (Name (Citem), Expression (Arg_Node))
+ then
+ Set_Has_Pragma_Unreferenced
+ (Cunit_Entity
+ (Get_Source_Unit
+ (Library_Unit (Citem))));
+ Set_Unit_Name (Expression (Arg_Node), Name (Citem));
+ exit;
+ end if;
+
+ Next (Citem);
+ end loop;
+
+ if Citem = N then
+ Error_Pragma_Arg
+ ("argument of pragma% is not with'ed unit", Arg_Node);
+ end if;
+
+ Next (Arg_Node);
+ end loop;
+
+ -- Case of not in list of context items
+
+ else
+ Arg_Node := Arg1;
+ while Present (Arg_Node) loop
+ Check_No_Identifier (Arg_Node);
+
+ -- Note: the analyze call done by Check_Arg_Is_Local_Name
+ -- will in fact generate reference, so that the entity will
+ -- have a reference, which will inhibit any warnings about
+ -- it not being referenced, and also properly show up in the
+ -- ali file as a reference. But this reference is recorded
+ -- before the Has_Pragma_Unreferenced flag is set, so that
+ -- no warning is generated for this reference.
+
+ Check_Arg_Is_Local_Name (Arg_Node);
+ Arg_Expr := Get_Pragma_Arg (Arg_Node);
+
+ if Is_Entity_Name (Arg_Expr) then
+ Arg_Ent := Entity (Arg_Expr);
+
+ -- If the entity is overloaded, the pragma applies to the
+ -- most recent overloading, as documented. In this case,
+ -- name resolution does not generate a reference, so it
+ -- must be done here explicitly.
+
+ if Is_Overloaded (Arg_Expr) then
+ Generate_Reference (Arg_Ent, N);
+ end if;
- if Is_Overloaded (Arg_Expr) then
- Generate_Reference (Arg_Ent, N);
+ Set_Has_Pragma_Unreferenced (Arg_Ent);
end if;
- Set_Has_Pragma_Unreferenced (Arg_Ent);
+ Next (Arg_Node);
+ end loop;
+ end if;
+ end Unreferenced;
+
+ --------------------------
+ -- Unreferenced_Objects --
+ --------------------------
+
+ -- pragma Unreferenced_Objects (local_Name {, local_Name});
+
+ when Pragma_Unreferenced_Objects => Unreferenced_Objects : declare
+ Arg_Node : Node_Id;
+ Arg_Expr : Node_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_At_Least_N_Arguments (1);
+
+ Arg_Node := Arg1;
+ while Present (Arg_Node) loop
+ Check_No_Identifier (Arg_Node);
+ Check_Arg_Is_Local_Name (Arg_Node);
+ Arg_Expr := Get_Pragma_Arg (Arg_Node);
+
+ if not Is_Entity_Name (Arg_Expr)
+ or else not Is_Type (Entity (Arg_Expr))
+ then
+ Error_Pragma_Arg
+ ("argument for pragma% must be type or subtype", Arg_Node);
end if;
+ Set_Has_Pragma_Unreferenced_Objects (Entity (Arg_Expr));
Next (Arg_Node);
end loop;
- end Unreferenced;
+ end Unreferenced_Objects;
------------------------------
-- Unreserve_All_Interrupts --
-- pragma Unsuppress (IDENTIFIER [, [On =>] NAME]);
when Pragma_Unsuppress =>
- GNAT_Pragma;
+ Ada_2005_Pragma;
Process_Suppress_Unsuppress (False);
-------------------
-- Warnings --
--------------
- -- pragma Warnings (On | Off, [LOCAL_NAME])
+ -- pragma Warnings (On | Off);
+ -- pragma Warnings (On | Off, LOCAL_NAME);
+ -- pragma Warnings (static_string_EXPRESSION);
+ -- pragma Warnings (On | Off, STRING_LITERAL);
when Pragma_Warnings => Warnings : begin
GNAT_Pragma;
Check_At_Least_N_Arguments (1);
- Check_At_Most_N_Arguments (2);
Check_No_Identifiers;
- -- One argument case was processed by parser in Par.Prag
-
- if Arg_Count /= 1 then
- Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off);
- Check_Arg_Count (2);
+ declare
+ Argx : constant Node_Id := Get_Pragma_Arg (Arg1);
- declare
- E_Id : Node_Id;
- E : Entity_Id;
+ begin
+ -- One argument case
- begin
- E_Id := Expression (Arg2);
- Analyze (E_Id);
+ if Arg_Count = 1 then
- -- In the expansion of an inlined body, a reference to
- -- the formal may be wrapped in a conversion if the actual
- -- is a conversion. Retrieve the real entity name.
+ -- On/Off one argument case was processed by parser
- if (In_Instance_Body
- or else In_Inlined_Body)
- and then Nkind (E_Id) = N_Unchecked_Type_Conversion
+ if Nkind (Argx) = N_Identifier
+ and then
+ (Chars (Argx) = Name_On
+ or else
+ Chars (Argx) = Name_Off)
then
- E_Id := Expression (E_Id);
- end if;
+ null;
- if not Is_Entity_Name (E_Id) then
+ -- One argument case must be ON/OFF or static string expr
+
+ elsif not Is_Static_String_Expression (Arg1) then
Error_Pragma_Arg
- ("second argument of pragma% must be entity name",
- Arg2);
- end if;
+ ("argument of pragma% must be On/Off or " &
+ "static string expression", Arg2);
- E := Entity (E_Id);
+ -- One argument string expression case
- if E = Any_Id then
- return;
else
- loop
- Set_Warnings_Off (E,
- (Chars (Expression (Arg1)) = Name_Off));
+ declare
+ Lit : constant Node_Id := Expr_Value_S (Argx);
+ Str : constant String_Id := Strval (Lit);
+ Len : constant Nat := String_Length (Str);
+ C : Char_Code;
+ J : Nat;
+ OK : Boolean;
+ Chr : Character;
- if Is_Enumeration_Type (E) then
- declare
- Lit : Entity_Id := First_Literal (E);
+ begin
+ J := 1;
+ while J <= Len loop
+ C := Get_String_Char (Str, J);
+ OK := In_Character_Range (C);
- begin
- while Present (Lit) loop
- Set_Warnings_Off (Lit);
- Next_Literal (Lit);
- end loop;
- end;
- end if;
+ if OK then
+ Chr := Get_Character (C);
- exit when No (Homonym (E));
- E := Homonym (E);
- end loop;
+ -- Dot case
+
+ if J < Len and then Chr = '.' then
+ J := J + 1;
+ C := Get_String_Char (Str, J);
+ Chr := Get_Character (C);
+
+ if not Set_Dot_Warning_Switch (Chr) then
+ Error_Pragma_Arg
+ ("invalid warning switch character " &
+ '.' & Chr, Arg1);
+ end if;
+
+ -- Non-Dot case
+
+ else
+ OK := Set_Warning_Switch (Chr);
+ end if;
+ end if;
+
+ if not OK then
+ Error_Pragma_Arg
+ ("invalid warning switch character " & Chr,
+ Arg1);
+ end if;
+
+ J := J + 1;
+ end loop;
+ end;
end if;
- end;
- end if;
+
+ -- Two or more arguments (must be two)
+
+ else
+ Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off);
+ Check_At_Most_N_Arguments (2);
+
+ declare
+ E_Id : Node_Id;
+ E : Entity_Id;
+ Err : Boolean;
+
+ begin
+ E_Id := Expression (Arg2);
+ Analyze (E_Id);
+
+ -- In the expansion of an inlined body, a reference to
+ -- the formal may be wrapped in a conversion if the
+ -- actual is a conversion. Retrieve the real entity name.
+
+ if (In_Instance_Body
+ or else In_Inlined_Body)
+ and then Nkind (E_Id) = N_Unchecked_Type_Conversion
+ then
+ E_Id := Expression (E_Id);
+ end if;
+
+ -- Entity name case
+
+ if Is_Entity_Name (E_Id) then
+ E := Entity (E_Id);
+
+ if E = Any_Id then
+ return;
+ else
+ loop
+ Set_Warnings_Off
+ (E, (Chars (Expression (Arg1)) = Name_Off));
+
+ if Chars (Expression (Arg1)) = Name_Off
+ and then Warn_On_Warnings_Off
+ then
+ Warnings_Off_Pragmas.Append ((N, E));
+ end if;
+
+ if Is_Enumeration_Type (E) then
+ declare
+ Lit : Entity_Id;
+ begin
+ Lit := First_Literal (E);
+ while Present (Lit) loop
+ Set_Warnings_Off (Lit);
+ Next_Literal (Lit);
+ end loop;
+ end;
+ end if;
+
+ exit when No (Homonym (E));
+ E := Homonym (E);
+ end loop;
+ end if;
+
+ -- Error if not entity or static string literal case
+
+ elsif not Is_Static_String_Expression (Arg2) then
+ Error_Pragma_Arg
+ ("second argument of pragma% must be entity " &
+ "name or static string expression", Arg2);
+
+ -- String literal case
+
+ else
+ String_To_Name_Buffer
+ (Strval (Expr_Value_S (Expression (Arg2))));
+
+ -- Note on configuration pragma case: If this is a
+ -- configuration pragma, then for an OFF pragma, we
+ -- just set Config True in the call, which is all
+ -- that needs to be done. For the case of ON, this
+ -- is normally an error, unless it is canceling the
+ -- effect of a previous OFF pragma in the same file.
+ -- In any other case, an error will be signalled (ON
+ -- with no matching OFF).
+
+ if Chars (Argx) = Name_Off then
+ Set_Specific_Warning_Off
+ (Loc, Name_Buffer (1 .. Name_Len),
+ Config => Is_Configuration_Pragma);
+
+ elsif Chars (Argx) = Name_On then
+ Set_Specific_Warning_On
+ (Loc, Name_Buffer (1 .. Name_Len), Err);
+
+ if Err then
+ Error_Msg
+ ("?pragma Warnings On with no " &
+ "matching Warnings Off",
+ Loc);
+ end if;
+ end if;
+ end if;
+ end;
+ end if;
+ end;
end Warnings;
-------------------
end if;
end Weak_External;
+ -----------------------------
+ -- Wide_Character_Encoding --
+ -----------------------------
+
+ -- pragma Wide_Character_Encoding (IDENTIFIER);
+
+ when Pragma_Wide_Character_Encoding =>
+ GNAT_Pragma;
+
+ -- Nothing to do, handled in parser. Note that we do not enforce
+ -- configuration pragma placement, this pragma can appear at any
+ -- place in the source, allowing mixed encodings within a single
+ -- source program.
+
+ null;
+
--------------------
-- Unknown_Pragma --
--------------------
when Pragma_Exit => null;
end Analyze_Pragma;
+ -------------------
+ -- Check_Enabled --
+ -------------------
+
+ function Check_Enabled (Nam : Name_Id) return Boolean is
+ PP : Node_Id;
+
+ begin
+ PP := Opt.Check_Policy_List;
+ loop
+ if No (PP) then
+ return Assertions_Enabled;
+
+ elsif
+ Nam = Chars (Expression (First (Pragma_Argument_Associations (PP))))
+ then
+ case
+ Chars (Expression (Last (Pragma_Argument_Associations (PP))))
+ is
+ when Name_On | Name_Check =>
+ return True;
+ when Name_Off | Name_Ignore =>
+ return False;
+ when others =>
+ raise Program_Error;
+ end case;
+
+ else
+ PP := Next_Pragma (PP);
+ end if;
+ end loop;
+ end Check_Enabled;
+
---------------------------------
-- Delay_Config_Pragma_Analyze --
---------------------------------
function Delay_Config_Pragma_Analyze (N : Node_Id) return Boolean is
begin
- return Chars (N) = Name_Interrupt_State;
+ return Pragma_Name (N) = Name_Interrupt_State
+ or else
+ Pragma_Name (N) = Name_Priority_Specific_Dispatching;
end Delay_Config_Pragma_Analyze;
-------------------------
Result : Entity_Id;
begin
- Result := Def_Id;
-
-- Follow subprogram renaming chain
+ Result := Def_Id;
while Is_Subprogram (Result)
and then
(Is_Generic_Instance (Result)
return Result;
end Get_Base_Subprogram;
+ --------------------
+ -- Get_Pragma_Arg --
+ --------------------
+
+ function Get_Pragma_Arg (Arg : Node_Id) return Node_Id is
+ begin
+ if Nkind (Arg) = N_Pragma_Argument_Association then
+ return Expression (Arg);
+ else
+ return Arg;
+ end if;
+ end Get_Pragma_Arg;
+
+ ----------------
+ -- Initialize --
+ ----------------
+
+ procedure Initialize is
+ begin
+ Externals.Init;
+ end Initialize;
+
-----------------------------
-- Is_Config_Static_String --
-----------------------------
return True;
end Add_Config_Static_String;
- -- Start of prorcessing for Is_Config_Static_String
+ -- Start of processing for Is_Config_Static_String
begin
-- This function makes use of the following static table which indicates
-- whether a given pragma is significant. A value of -1 in this table
-- indicates that the reference is significant. A value of zero indicates
- -- than appearence as any argument is insignificant, a positive value
- -- indicates that appearence in that parameter position is significant.
+ -- than appearance as any argument is insignificant, a positive value
+ -- indicates that appearance in that parameter position is significant.
- Sig_Flags : constant array (Pragma_Id) of Int :=
+ -- A value of 99 flags a special case requiring a special check (this is
+ -- used for cases not covered by this standard encoding, e.g. pragma Check
+ -- where the first argument is not significant, but the others are).
- (Pragma_AST_Entry => -1,
- Pragma_Abort_Defer => -1,
- Pragma_Ada_83 => -1,
- Pragma_Ada_95 => -1,
- Pragma_Ada_05 => -1,
- Pragma_All_Calls_Remote => -1,
- Pragma_Annotate => -1,
- Pragma_Assert => -1,
- Pragma_Asynchronous => -1,
- Pragma_Atomic => 0,
- Pragma_Atomic_Components => 0,
- Pragma_Attach_Handler => -1,
- Pragma_CPP_Class => 0,
- Pragma_CPP_Constructor => 0,
- Pragma_CPP_Virtual => 0,
- Pragma_CPP_Vtable => 0,
- Pragma_C_Pass_By_Copy => 0,
- Pragma_Comment => 0,
- Pragma_Common_Object => -1,
- Pragma_Compile_Time_Warning => -1,
- Pragma_Complex_Representation => 0,
- Pragma_Component_Alignment => -1,
- Pragma_Controlled => 0,
- Pragma_Convention => 0,
- Pragma_Convention_Identifier => 0,
- Pragma_Debug => -1,
- Pragma_Discard_Names => 0,
- Pragma_Elaborate => -1,
- Pragma_Elaborate_All => -1,
- Pragma_Elaborate_Body => -1,
- Pragma_Elaboration_Checks => -1,
- Pragma_Eliminate => -1,
- Pragma_Explicit_Overriding => -1,
- Pragma_Export => -1,
- Pragma_Export_Exception => -1,
- Pragma_Export_Function => -1,
- Pragma_Export_Object => -1,
- Pragma_Export_Procedure => -1,
- Pragma_Export_Value => -1,
- Pragma_Export_Valued_Procedure => -1,
- Pragma_Extend_System => -1,
- Pragma_Extensions_Allowed => -1,
- Pragma_External => -1,
- Pragma_External_Name_Casing => -1,
- Pragma_Finalize_Storage_Only => 0,
- Pragma_Float_Representation => 0,
- Pragma_Ident => -1,
- Pragma_Import => +2,
- Pragma_Import_Exception => 0,
- Pragma_Import_Function => 0,
- Pragma_Import_Object => 0,
- Pragma_Import_Procedure => 0,
- Pragma_Import_Valued_Procedure => 0,
- Pragma_Initialize_Scalars => -1,
- Pragma_Inline => 0,
- Pragma_Inline_Always => 0,
- Pragma_Inline_Generic => 0,
- Pragma_Inspection_Point => -1,
- Pragma_Interface => +2,
- Pragma_Interface_Name => +2,
- Pragma_Interrupt_Handler => -1,
- Pragma_Interrupt_Priority => -1,
- Pragma_Interrupt_State => -1,
- Pragma_Java_Constructor => -1,
- Pragma_Java_Interface => -1,
- Pragma_Keep_Names => 0,
- Pragma_License => -1,
- Pragma_Link_With => -1,
- Pragma_Linker_Alias => -1,
- Pragma_Linker_Options => -1,
- Pragma_Linker_Section => -1,
- Pragma_List => -1,
- Pragma_Locking_Policy => -1,
- Pragma_Long_Float => -1,
- Pragma_Machine_Attribute => -1,
- Pragma_Main => -1,
- Pragma_Main_Storage => -1,
- Pragma_Memory_Size => -1,
- Pragma_No_Return => 0,
- Pragma_No_Run_Time => -1,
- Pragma_No_Strict_Aliasing => -1,
- Pragma_Normalize_Scalars => -1,
- Pragma_Obsolescent => 0,
- Pragma_Optimize => -1,
- Pragma_Optional_Overriding => -1,
- Pragma_Overriding => -1,
- Pragma_Pack => 0,
- Pragma_Page => -1,
- Pragma_Passive => -1,
- Pragma_Polling => -1,
- Pragma_Persistent_Data => -1,
- Pragma_Persistent_Object => -1,
- Pragma_Preelaborate => -1,
- Pragma_Priority => -1,
- Pragma_Profile => 0,
- Pragma_Propagate_Exceptions => -1,
- Pragma_Psect_Object => -1,
- Pragma_Pure => 0,
- Pragma_Pure_Function => 0,
- Pragma_Queuing_Policy => -1,
- Pragma_Ravenscar => -1,
- Pragma_Remote_Call_Interface => -1,
- Pragma_Remote_Types => -1,
- Pragma_Restricted_Run_Time => -1,
- Pragma_Restriction_Warnings => -1,
- Pragma_Restrictions => -1,
- Pragma_Reviewable => -1,
- Pragma_Share_Generic => -1,
- Pragma_Shared => -1,
- Pragma_Shared_Passive => -1,
- Pragma_Source_File_Name => -1,
- Pragma_Source_File_Name_Project => -1,
- Pragma_Source_Reference => -1,
- Pragma_Storage_Size => -1,
- Pragma_Storage_Unit => -1,
- Pragma_Stream_Convert => -1,
- Pragma_Style_Checks => -1,
- Pragma_Subtitle => -1,
- Pragma_Suppress => 0,
- Pragma_Suppress_Exception_Locations => 0,
- Pragma_Suppress_All => -1,
- Pragma_Suppress_Debug_Info => 0,
- Pragma_Suppress_Initialization => 0,
- Pragma_System_Name => -1,
- Pragma_Task_Dispatching_Policy => -1,
- Pragma_Task_Info => -1,
- Pragma_Task_Name => -1,
- Pragma_Task_Storage => 0,
- Pragma_Thread_Body => +2,
- Pragma_Time_Slice => -1,
- Pragma_Title => -1,
- Pragma_Unchecked_Union => 0,
- Pragma_Unimplemented_Unit => -1,
- Pragma_Universal_Data => -1,
- Pragma_Unreferenced => -1,
- Pragma_Unreserve_All_Interrupts => -1,
- Pragma_Unsuppress => 0,
- Pragma_Use_VADS_Size => -1,
- Pragma_Validity_Checks => -1,
- Pragma_Volatile => 0,
- Pragma_Volatile_Components => 0,
- Pragma_Warnings => -1,
- Pragma_Weak_External => 0,
- Unknown_Pragma => 0);
+ Sig_Flags : constant array (Pragma_Id) of Int :=
+ (Pragma_AST_Entry => -1,
+ Pragma_Abort_Defer => -1,
+ Pragma_Ada_83 => -1,
+ Pragma_Ada_95 => -1,
+ Pragma_Ada_05 => -1,
+ Pragma_Ada_2005 => -1,
+ Pragma_All_Calls_Remote => -1,
+ Pragma_Annotate => -1,
+ Pragma_Assert => -1,
+ Pragma_Assertion_Policy => 0,
+ Pragma_Assume_No_Invalid_Values => 0,
+ Pragma_Asynchronous => -1,
+ Pragma_Atomic => 0,
+ Pragma_Atomic_Components => 0,
+ Pragma_Attach_Handler => -1,
+ Pragma_Check => 99,
+ Pragma_Check_Name => 0,
+ Pragma_Check_Policy => 0,
+ Pragma_CIL_Constructor => -1,
+ Pragma_CPP_Class => 0,
+ Pragma_CPP_Constructor => 0,
+ Pragma_CPP_Virtual => 0,
+ Pragma_CPP_Vtable => 0,
+ Pragma_C_Pass_By_Copy => 0,
+ Pragma_Comment => 0,
+ Pragma_Common_Object => -1,
+ Pragma_Compile_Time_Error => -1,
+ Pragma_Compile_Time_Warning => -1,
+ Pragma_Compiler_Unit => 0,
+ Pragma_Complete_Representation => 0,
+ Pragma_Complex_Representation => 0,
+ Pragma_Component_Alignment => -1,
+ Pragma_Controlled => 0,
+ Pragma_Convention => 0,
+ Pragma_Convention_Identifier => 0,
+ Pragma_Debug => -1,
+ Pragma_Debug_Policy => 0,
+ Pragma_Detect_Blocking => -1,
+ Pragma_Discard_Names => 0,
+ Pragma_Elaborate => -1,
+ Pragma_Elaborate_All => -1,
+ Pragma_Elaborate_Body => -1,
+ Pragma_Elaboration_Checks => -1,
+ Pragma_Eliminate => -1,
+ Pragma_Export => -1,
+ Pragma_Export_Exception => -1,
+ Pragma_Export_Function => -1,
+ Pragma_Export_Object => -1,
+ Pragma_Export_Procedure => -1,
+ Pragma_Export_Value => -1,
+ Pragma_Export_Valued_Procedure => -1,
+ Pragma_Extend_System => -1,
+ Pragma_Extensions_Allowed => -1,
+ Pragma_External => -1,
+ Pragma_Favor_Top_Level => -1,
+ Pragma_External_Name_Casing => -1,
+ Pragma_Fast_Math => -1,
+ Pragma_Finalize_Storage_Only => 0,
+ Pragma_Float_Representation => 0,
+ Pragma_Ident => -1,
+ Pragma_Implemented_By_Entry => -1,
+ Pragma_Implicit_Packing => 0,
+ Pragma_Import => +2,
+ Pragma_Import_Exception => 0,
+ Pragma_Import_Function => 0,
+ Pragma_Import_Object => 0,
+ Pragma_Import_Procedure => 0,
+ Pragma_Import_Valued_Procedure => 0,
+ Pragma_Initialize_Scalars => -1,
+ Pragma_Inline => 0,
+ Pragma_Inline_Always => 0,
+ Pragma_Inline_Generic => 0,
+ Pragma_Inspection_Point => -1,
+ Pragma_Interface => +2,
+ Pragma_Interface_Name => +2,
+ Pragma_Interrupt_Handler => -1,
+ Pragma_Interrupt_Priority => -1,
+ Pragma_Interrupt_State => -1,
+ Pragma_Java_Constructor => -1,
+ Pragma_Java_Interface => -1,
+ Pragma_Keep_Names => 0,
+ Pragma_License => -1,
+ Pragma_Link_With => -1,
+ Pragma_Linker_Alias => -1,
+ Pragma_Linker_Constructor => -1,
+ Pragma_Linker_Destructor => -1,
+ Pragma_Linker_Options => -1,
+ Pragma_Linker_Section => -1,
+ Pragma_List => -1,
+ Pragma_Locking_Policy => -1,
+ Pragma_Long_Float => -1,
+ Pragma_Machine_Attribute => -1,
+ Pragma_Main => -1,
+ Pragma_Main_Storage => -1,
+ Pragma_Memory_Size => -1,
+ Pragma_No_Return => 0,
+ Pragma_No_Body => 0,
+ Pragma_No_Run_Time => -1,
+ Pragma_No_Strict_Aliasing => -1,
+ Pragma_Normalize_Scalars => -1,
+ Pragma_Obsolescent => 0,
+ Pragma_Optimize => -1,
+ Pragma_Optimize_Alignment => -1,
+ Pragma_Pack => 0,
+ Pragma_Page => -1,
+ Pragma_Passive => -1,
+ Pragma_Preelaborable_Initialization => -1,
+ Pragma_Polling => -1,
+ Pragma_Persistent_BSS => 0,
+ Pragma_Postcondition => -1,
+ Pragma_Precondition => -1,
+ Pragma_Preelaborate => -1,
+ Pragma_Preelaborate_05 => -1,
+ Pragma_Priority => -1,
+ Pragma_Priority_Specific_Dispatching => -1,
+ Pragma_Profile => 0,
+ Pragma_Profile_Warnings => 0,
+ Pragma_Propagate_Exceptions => -1,
+ Pragma_Psect_Object => -1,
+ Pragma_Pure => -1,
+ Pragma_Pure_05 => -1,
+ Pragma_Pure_Function => -1,
+ Pragma_Queuing_Policy => -1,
+ Pragma_Ravenscar => -1,
+ Pragma_Relative_Deadline => -1,
+ Pragma_Remote_Call_Interface => -1,
+ Pragma_Remote_Types => -1,
+ Pragma_Restricted_Run_Time => -1,
+ Pragma_Restriction_Warnings => -1,
+ Pragma_Restrictions => -1,
+ Pragma_Reviewable => -1,
+ Pragma_Share_Generic => -1,
+ Pragma_Shared => -1,
+ Pragma_Shared_Passive => -1,
+ Pragma_Source_File_Name => -1,
+ Pragma_Source_File_Name_Project => -1,
+ Pragma_Source_Reference => -1,
+ Pragma_Storage_Size => -1,
+ Pragma_Storage_Unit => -1,
+ Pragma_Static_Elaboration_Desired => -1,
+ Pragma_Stream_Convert => -1,
+ Pragma_Style_Checks => -1,
+ Pragma_Subtitle => -1,
+ Pragma_Suppress => 0,
+ Pragma_Suppress_Exception_Locations => 0,
+ Pragma_Suppress_All => -1,
+ Pragma_Suppress_Debug_Info => 0,
+ Pragma_Suppress_Initialization => 0,
+ Pragma_System_Name => -1,
+ Pragma_Task_Dispatching_Policy => -1,
+ Pragma_Task_Info => -1,
+ Pragma_Task_Name => -1,
+ Pragma_Task_Storage => 0,
+ Pragma_Thread_Local_Storage => 0,
+ Pragma_Time_Slice => -1,
+ Pragma_Title => -1,
+ Pragma_Unchecked_Union => 0,
+ Pragma_Unimplemented_Unit => -1,
+ Pragma_Universal_Aliasing => -1,
+ Pragma_Universal_Data => -1,
+ Pragma_Unmodified => -1,
+ Pragma_Unreferenced => -1,
+ Pragma_Unreferenced_Objects => -1,
+ Pragma_Unreserve_All_Interrupts => -1,
+ Pragma_Unsuppress => 0,
+ Pragma_Use_VADS_Size => -1,
+ Pragma_Validity_Checks => -1,
+ Pragma_Volatile => 0,
+ Pragma_Volatile_Components => 0,
+ Pragma_Warnings => -1,
+ Pragma_Weak_External => -1,
+ Pragma_Wide_Character_Encoding => 0,
+ Unknown_Pragma => 0);
function Is_Non_Significant_Pragma_Reference (N : Node_Id) return Boolean is
- P : Node_Id;
- C : Int;
- A : Node_Id;
+ Id : Pragma_Id;
+ P : Node_Id;
+ C : Int;
+ A : Node_Id;
begin
P := Parent (N);
return False;
else
- C := Sig_Flags (Get_Pragma_Id (Chars (Parent (P))));
+ Id := Get_Pragma_Id (Parent (P));
+ C := Sig_Flags (Id);
case C is
when -1 =>
when 0 =>
return True;
+ when 99 =>
+ case Id is
+
+ -- For pragma Check, the first argument is not significant,
+ -- the second and the third (if present) arguments are
+ -- significant.
+
+ when Pragma_Check =>
+ return
+ P = First (Pragma_Argument_Associations (Parent (P)));
+
+ when others =>
+ raise Program_Error;
+ end case;
+
when others =>
A := First (Pragma_Argument_Associations (Parent (P)));
for J in 1 .. C - 1 loop
Next (A);
end loop;
- return A = P;
+ return A = P; -- is this wrong way round ???
end case;
end if;
end Is_Non_Significant_Pragma_Reference;
function Is_Pragma_String_Literal (Par : Node_Id) return Boolean is
Pragn : constant Node_Id := Parent (Par);
Assoc : constant List_Id := Pragma_Argument_Associations (Pragn);
- Pname : constant Name_Id := Chars (Pragn);
+ Pname : constant Name_Id := Pragma_Name (Pragn);
Argn : Natural;
N : Node_Id;
if Present (PA) then
P := First (PA);
while Present (P) loop
- if Chars (P) = Name_Suppress_All then
+ if Pragma_Name (P) = Name_Suppress_All then
Prepend_To (Context_Items (N),
Make_Pragma (Sloc (P),
Chars => Name_Suppress,
end;
end Process_Compilation_Unit_Pragmas;
+ --------
+ -- rv --
+ --------
+
+ procedure rv is
+ begin
+ null;
+ end rv;
+
--------------------------------
-- Set_Encoded_Interface_Name --
--------------------------------
-- Stores encoded value of character code CC. The encoding we
-- use an underscore followed by four lower case hex digits.
+ ------------
+ -- Encode --
+ ------------
+
procedure Encode is
begin
Store_String_Char (Get_Char_Code ('_'));
-- If first character is asterisk, this is a link name, and we
-- leave it completely unmodified. We also ignore null strings
-- (the latter case happens only in error cases) and no encoding
- -- should occur for Java interface names.
+ -- should occur for Java or AAMP interface names.
if Len = 0
or else Get_String_Char (Str, 1) = Get_Char_Code ('*')
- or else Java_VM
+ or else VM_Target /= No_VM
+ or else AAMP_On_Target
then
Set_Interface_Name (E, S);
Pref := Prefix (N);
Scop := Scope (Entity (N));
-
while Nkind (Pref) = N_Selected_Component loop
Change_Selected_Component_To_Expanded_Name (Pref);
Set_Entity (Selector_Name (Pref), Scop);
OSDN Git Service
