-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2007, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2010, 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- --
with Csets; use Csets;
with Debug; use Debug;
with Einfo; use Einfo;
+with Elists; use Elists;
with Errout; use Errout;
+with Exp_Ch7; use Exp_Ch7;
with Exp_Dist; use Exp_Dist;
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 Output; use Output;
+with Par_SCO; use Par_SCO;
with Restrict; use Restrict;
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_Dist; use Sem_Dist;
with Sem_Elim; use Sem_Elim;
with Tbuild; use Tbuild;
with Ttypes;
with Uintp; use Uintp;
+with Uname; use Uname;
with Urealp; use Urealp;
with Validsw; use Validsw;
-- exported, and must refer to an entity in the current declarative
-- part (as required by the rules for LOCAL_NAME).
- -- The external linker name is designated by the External parameter
- -- if given, or the Internal parameter if not (if there is no External
+ -- The external linker name is designated by the External parameter if
+ -- given, or the Internal parameter if not (if there is no External
-- parameter, the External parameter is a copy of the Internal name).
- -- If the External parameter is given as a string, then this string
- -- is treated as an external name (exactly as though it had been given
- -- as an External_Name parameter for a normal Import pragma).
+ -- If the External parameter is given as a string, then this string is
+ -- treated as an external name (exactly as though it had been given as an
+ -- External_Name parameter for a normal Import pragma).
-- If the External parameter is given as an identifier (or there is no
-- External parameter, so that the Internal identifier is used), then
-- Import_xxx or Export_xxx pragmas override an external or link name
-- specified in a previous Import or Export pragma.
- -- Note: these and all other DEC-compatible GNAT pragmas allow full
- -- use of named notation, following the standard rules for subprogram
- -- calls, i.e. parameters can be given in any order if named notation
- -- is used, and positional and named notation can be mixed, subject to
- -- the rule that all positional parameters must appear first.
+ -- Note: these and all other DEC-compatible GNAT pragmas allow full use of
+ -- named notation, following the standard rules for subprogram calls, i.e.
+ -- parameters can be given in any order if named notation is used, and
+ -- positional and named notation can be mixed, subject to the rule that all
+ -- positional parameters must appear first.
- -- Note: All these pragmas are implemented exactly following the DEC
- -- design and implementation and are intended to be fully compatible
- -- with the use of these pragmas in the DEC Ada compiler.
+ -- Note: All these pragmas are implemented exactly following the DEC 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 --
-- 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.
+ -- 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,
function Adjust_External_Name_Case (N : Node_Id) return Node_Id;
-- This routine is used for possible casing adjustment of an explicit
- -- external name supplied as a string literal (the node N), according
- -- to the casing requirement of Opt.External_Name_Casing. If this is
- -- set to As_Is, then the string literal is returned unchanged, but if
- -- it is set to Uppercase or Lowercase, then a new string literal with
- -- appropriate casing is constructed.
+ -- external name supplied as a string literal (the node N), according to
+ -- the casing requirement of Opt.External_Name_Casing. If this is set to
+ -- As_Is, then the string literal is returned unchanged, but if it is set
+ -- to Uppercase or Lowercase, then a new string literal with appropriate
+ -- casing is constructed.
function Get_Base_Subprogram (Def_Id : Entity_Id) return Entity_Id;
- -- If Def_Id refers to a renamed subprogram, then the base subprogram
- -- (the original one, following the renaming chain) is returned.
- -- Otherwise the entity is returned unchanged. Should be in Einfo???
+ -- If Def_Id refers to a renamed subprogram, then the base subprogram (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.
-- 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
- -- taken from item in previous with_clause that mentions the unit.
+ -- Place semantic information on the argument of an Elaborate/Elaborate_All
+ -- pragma. Entity name for unit and its parents is taken from item in
+ -- previous with_clause that mentions the unit.
-------------------------------
-- Adjust_External_Name_Case --
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 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.
+ -- This exception is used to exit pragma processing completely. It 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
Arg2 : Node_Id;
Arg3 : Node_Id;
Arg4 : Node_Id;
- -- First four pragma arguments (pragma argument association nodes,
- -- or Empty if the corresponding argument does not exist).
+ -- 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;
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
+ -- caught by the No_Implementation_Pragmas restriction.
+
+ procedure Ada_2012_Pragma;
+ -- Called for pragmas defined in Ada 2012, that are not in Ada 95 or 05.
+ -- In Ada 95 or 05 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
-- of 95 pragma.
procedure Check_Arg_Count (Required : Nat);
- -- Check argument count for pragma is equal to given parameter.
- -- If not, then issue an error message and raise Pragma_Exit.
+ -- Check argument count for pragma is equal to given parameter. If not,
+ -- then issue an error message and raise Pragma_Exit.
- -- Note: all routines whose name is Check_Arg_Is_xxx take an
- -- argument Arg which can either be a pragma argument association,
- -- in which case the check is applied to the expression of the
- -- association or an expression directly.
+ -- Note: all routines whose name is Check_Arg_Is_xxx take an argument
+ -- Arg which can either be a pragma argument association, 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).
+ -- 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_Integer_Literal (Arg : Node_Id);
- -- Check the specified argument Arg to make sure that it is an
- -- integer literal. If not give error and raise Pragma_Exit.
+ -- Check the specified argument Arg to make sure that it is an integer
+ -- literal. If not give error and raise Pragma_Exit.
procedure Check_Arg_Is_Library_Level_Local_Name (Arg : Node_Id);
- -- Check the specified argument Arg to make sure that it has the
- -- proper syntactic form for a local name and meets the semantic
- -- requirements for a local name. The local name is analyzed as
- -- part of the processing for this call. In addition, the local
- -- name is required to represent an entity at the library level.
+ -- Check the specified argument Arg to make sure that it has the proper
+ -- syntactic form for a local name and meets the semantic requirements
+ -- for a local name. The local name is analyzed as part of the
+ -- processing for this call. In addition, the local name is required
+ -- to represent an entity at the library level.
procedure Check_Arg_Is_Local_Name (Arg : Node_Id);
- -- Check the specified argument Arg to make sure that it has the
- -- proper syntactic form for a local name and meets the semantic
- -- requirements for a local name. The local name is analyzed as
- -- part of the processing for this call.
+ -- Check the specified argument Arg to make sure that it has the proper
+ -- syntactic form for a local name and meets the semantic requirements
+ -- for a local name. The local name is analyzed as part of the
+ -- processing for this call.
procedure Check_Arg_Is_Locking_Policy (Arg : Node_Id);
-- Check the specified argument Arg to make sure that it is a valid
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.
procedure Check_Arg_Is_Static_Expression
(Arg : Node_Id;
- Typ : Entity_Id);
+ Typ : Entity_Id := Empty);
-- Check the specified argument Arg to make sure that it is a static
-- expression of the given type (i.e. it will be analyzed and resolved
-- using this type, which can be any valid argument to Resolve, e.g.
- -- Any_Integer is OK). If not, given error and raise Pragma_Exit.
-
- procedure Check_Arg_Is_String_Literal (Arg : Node_Id);
- -- Check the specified argument Arg to make sure that it is a
- -- string literal. If not give error and raise Pragma_Exit
+ -- Any_Integer is OK). If not, given error and raise Pragma_Exit. If
+ -- Typ is left Empty, then any static expression is allowed.
procedure Check_Arg_Is_Task_Dispatching_Policy (Arg : Node_Id);
- -- Check the specified argument Arg to make sure that it is a valid
- -- valid task dispatching policy name. If not give error and raise
- -- Pragma_Exit.
+ -- Check the specified argument Arg to make sure that it is a 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
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
+ procedure Check_Component
+ (Comp : Node_Id;
+ UU_Typ : Entity_Id;
+ In_Variant_Part : Boolean := False);
+ -- Examine an Unchecked_Union component for correct use of per-object
-- constrained subtypes, and for restrictions on finalizable components.
+ -- UU_Typ is the related Unchecked_Union type. Flag In_Variant_Part
+ -- should be set when Comp comes from a record variant.
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.
+ -- 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.
+ -- 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
- -- or pragma Attach_Handler.
+ -- Common processing for first argument of pragma Interrupt_Handler or
+ -- pragma Attach_Handler.
procedure Check_Is_In_Decl_Part_Or_Package_Spec;
-- Check that pragma appears in a declarative part, or in a package
-- 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 Check_Variant (Variant : Node_Id; UU_Typ : Entity_Id);
+ -- Check an Unchecked_Union variant for lack of nested variants and
+ -- presence of at least one component. UU_Typ is the related Unchecked_
+ -- Union type.
procedure Error_Pragma (Msg : String);
pragma No_Return (Error_Pragma);
-- 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.
-- 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 check the relevant restriction
-- (No_Implementation_Pragmas).
-- 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,
-- 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;
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.
+ procedure Process_Convention
+ (C : out Convention_Id;
+ Ent : out Entity_Id);
+ -- 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.
+ -- C is the convention, Ent is the referenced entity.
procedure Process_Extended_Import_Export_Exception_Pragma
(Arg_Internal : Node_Id;
Arg_External : Node_Id;
Arg_Form : Node_Id;
Arg_Code : Node_Id);
- -- Common processing for the pragmas Import/Export_Exception.
- -- The three arguments correspond to the three named parameters of
- -- the pragma. An argument is empty if the corresponding parameter
- -- is not present in the pragma.
+ -- Common processing for the pragmas Import/Export_Exception. The three
+ -- arguments correspond to the three named parameters of the pragma. An
+ -- argument is empty if the corresponding parameter is not present in
+ -- the pragma.
procedure Process_Extended_Import_Export_Object_Pragma
(Arg_Internal : Node_Id;
Arg_External : Node_Id;
Arg_Size : Node_Id);
- -- Common processing for the pragmass 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.
+ -- 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.
procedure Process_Extended_Import_Export_Internal_Arg
(Arg_Internal : Node_Id := Empty);
Arg_Mechanism : Node_Id;
Arg_Result_Mechanism : Node_Id := Empty;
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
- -- can be non-Empty only in the Import_Function and Export_Function
- -- cases). The argument names correspond to the allowed pragma
- -- association identifiers.
+ -- Common processing for all extended Import and Export pragmas applying
+ -- to subprograms. The caller omits any arguments that do 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_Generic_List;
-- Common processing for Share_Generic and Inline_Generic
procedure Process_Inline (Active : Boolean);
-- Common processing for Inline and Inline_Always. The parameter
- -- indicates if the inline pragma is active, i.e. if it should
- -- actually cause inlining to occur.
+ -- indicates if the inline pragma is active, i.e. if it should actually
+ -- cause inlining to occur.
procedure Process_Interface_Name
(Subprogram_Def : Entity_Id;
-- Given the last two arguments of pragma Import, pragma Export, or
-- pragma Interface_Name, performs validity checks and sets the
-- Interface_Name field of the given subprogram entity to the
- -- appropriate external or link name, depending on the arguments
- -- given. Ext_Arg is always present, but Link_Arg may be missing.
- -- Note that Ext_Arg may represent the Link_Name if Link_Arg is
- -- missing, and appropriate named notation is used for Ext_Arg.
- -- If neither Ext_Arg nor Link_Arg is present, the interface name
- -- is set to the default from the subprogram name.
+ -- appropriate external or link name, depending on the arguments given.
+ -- Ext_Arg is always present, but Link_Arg may be missing. Note that
+ -- Ext_Arg may represent the Link_Name if Link_Arg is missing, and
+ -- appropriate named notation is used for Ext_Arg. If neither Ext_Arg
+ -- nor Link_Arg is present, the interface name is set to the default
+ -- from the subprogram name.
procedure Process_Interrupt_Or_Attach_Handler;
-- Common processing for Interrupt and Attach_Handler pragmas
procedure Process_Restrictions_Or_Restriction_Warnings (Warn : Boolean);
-- Common processing for Restrictions and Restriction_Warnings pragmas.
- -- Warn is False for Restrictions, True for Restriction_Warnings.
+ -- 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
-- set appropriately.
procedure Set_Ravenscar_Profile (N : Node_Id);
- -- Activate the set of configuration pragmas and restrictions that
- -- make up the Ravenscar Profile. N is the corresponding pragma
- -- node, which is used for error messages on any constructs
- -- that violate the profile.
+ -- Activate the set of configuration pragmas and restrictions that make
+ -- up the Ravenscar Profile. N is the corresponding pragma node, which
+ -- is used for error messages on any constructs that violate the
+ -- profile.
---------------------
-- Ada_2005_Pragma --
end if;
end Ada_2005_Pragma;
+ ---------------------
+ -- Ada_2012_Pragma --
+ ---------------------
+
+ procedure Ada_2012_Pragma is
+ begin
+ if Ada_Version <= Ada_05 then
+ Check_Restriction (No_Implementation_Pragmas, N);
+ end if;
+ end Ada_2012_Pragma;
+
--------------------------
-- Check_Ada_83_Warning --
--------------------------
-- Here we have a real error (non-static expression)
else
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Flag_Non_Static_Expr
("argument for pragma% must be a identifier or " &
"static string expression!", Argx);
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 --
---------------------------------
procedure Check_Arg_Is_Static_Expression
(Arg : Node_Id;
- Typ : Entity_Id)
+ Typ : Entity_Id := Empty)
is
Argx : constant Node_Id := Get_Pragma_Arg (Arg);
begin
- Analyze_And_Resolve (Argx, Typ);
+ if Present (Typ) then
+ Analyze_And_Resolve (Argx, Typ);
+ else
+ Analyze_And_Resolve (Argx);
+ end if;
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 the use of Ada 95
- -- pragmas like Import in Ada 83 mode. They will of course be
- -- flagged with warnings as usual, but will not cause errors.
+ -- 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 the use of Ada 95 pragmas like
+ -- Import in Ada 83 mode. They will of course be flagged with
+ -- warnings as usual, but will not cause errors.
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.
+ -- 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;
-- 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;
end if;
end Check_Arg_Is_Static_Expression;
- ---------------------------------
- -- Check_Arg_Is_String_Literal --
- ---------------------------------
-
- 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;
-
------------------------------------------
-- Check_Arg_Is_Task_Dispatching_Policy --
------------------------------------------
for K in Names'Range loop
if Chars (Arg) = Names (K) then
if K < Highest_So_Far then
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N
("parameters out of order for pragma%", Arg);
Error_Msg_Name_1 := Names (K);
-- 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
+ procedure Check_Component
+ (Comp : Node_Id;
+ UU_Typ : Entity_Id;
+ In_Variant_Part : Boolean := False)
+ is
+ Comp_Id : constant Entity_Id := Defining_Identifier (Comp);
+ Sindic : constant Node_Id :=
+ Subtype_Indication (Component_Definition (Comp));
+ Typ : constant Entity_Id := Etype (Comp_Id);
- -- Ada 2005 (AI-216): If a component subtype is subject to
- -- a per-object constraint, then the component type shall
- -- be an Unchecked_Union.
+ function Inside_Generic_Body (Id : Entity_Id) return Boolean;
+ -- Determine whether entity Id appears inside a generic body
- 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;
+ -------------------------
+ -- Inside_Generic_Body --
+ -------------------------
- if Is_Controlled (Typ) then
- Error_Msg_N
- ("component of unchecked union cannot be controlled", Comp);
+ function Inside_Generic_Body (Id : Entity_Id) return Boolean is
+ S : Entity_Id := Id;
- elsif Has_Task (Typ) then
- Error_Msg_N
- ("component of unchecked union cannot have tasks", Comp);
+ begin
+ while Present (S)
+ and then S /= Standard_Standard
+ loop
+ if Ekind (S) = E_Generic_Package
+ and then In_Package_Body (S)
+ then
+ return True;
end if;
- end;
+
+ S := Scope (S);
+ end loop;
+
+ return False;
+ end Inside_Generic_Body;
+
+ -- Start of processing for Check_Component
+
+ begin
+ -- 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 Nkind (Sindic) = N_Subtype_Indication
+ and then Has_Per_Object_Constraint (Comp_Id)
+ 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);
+
+ -- Ada 2012 (AI05-0026): For an unchecked union type declared within
+ -- the body of a generic unit, or within the body of any of its
+ -- descendant library units, no part of the type of a component
+ -- declared in a variant_part of the unchecked union type shall be of
+ -- a formal private type or formal private extension declared within
+ -- the formal part of the generic unit.
+
+ elsif Ada_Version >= Ada_2012
+ and then Inside_Generic_Body (UU_Typ)
+ and then In_Variant_Part
+ and then Is_Private_Type (Typ)
+ and then Is_Generic_Type (Typ)
+ then
+ Error_Msg_N
+ ("component of Unchecked_Union cannot be of generic type", Comp);
+
+ elsif Needs_Finalization (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 Check_Component;
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;
elsif Nkind (P) = N_Handled_Sequence_Of_Statements then
exit;
- elsif Nkind (P) = N_Package_Specification then
- return;
-
- elsif Nkind (P) = N_Block_Statement then
+ elsif Nkind_In (P, N_Package_Specification,
+ N_Block_Statement)
+ then
return;
-- Note: the following tests seem a little peculiar, because
-- 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;
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_Precondition_Postcondition --
+ --------------------------------------
+
+ procedure Check_Precondition_Postcondition (In_Body : out Boolean) is
+ P : Node_Id;
+ PO : Node_Id;
+
+ 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.
+
+ ---------------
+ -- Chain_PPC --
+ ---------------
+
+ procedure Chain_PPC (PO : Node_Id) is
+ S : Node_Id;
+
+ begin
+ if not Nkind_In (PO, N_Subprogram_Declaration,
+ N_Generic_Subprogram_Declaration)
+ then
+ Pragma_Misplaced;
+ end if;
+
+ -- Here if we have subprogram or generic subprogram declaration
+
+ S := Defining_Unit_Name (Specification (PO));
+
+ -- 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).
+
+ if not Is_Package_Or_Generic_Package (Scope (S)) then
+ Analyze_PPC_In_Decl_Part (N, S);
+ end if;
+
+ -- Chain spec PPC pragma to list for subprogram
+
+ Set_Next_Pragma (N, Spec_PPC_List (S));
+ Set_Spec_PPC_List (S, N);
+
+ -- Return indicating spec case
+
+ 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 if pragma is enabled
+
+ if Check_Enabled (Pname) then
+ Set_Pragma_Enabled (N);
+ Set_SCO_Pragma_Enabled (Loc);
+ end if;
+
+ -- 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
+ or else Inside_A_Generic
+ 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.
+ -- 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);
- -- Require given expression to be static expression
-
procedure Require_Static (E : Node_Id) is
begin
if not Is_OK_Static_Expression (E) then
-- Check_Valid_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 also allows use in a configuration pragma file.
procedure Check_Valid_Configuration_Pragma is
begin
if Parent_Node = Empty then
Pragma_Misplaced;
- -- Case of pragma appearing after a compilation unit. In this
- -- case it must have an argument with the corresponding name
- -- and must be part of the following pragmas of its parent.
+ -- Case of pragma appearing after a compilation unit. In this case
+ -- it must have an argument with the corresponding name and must
+ -- be part of the following pragmas of its parent.
elsif Nkind (Parent_Node) = N_Compilation_Unit_Aux then
if Plist /= Pragmas_After (Parent_Node) then
-- Check_Variant --
-------------------
- procedure Check_Variant (Variant : Node_Id) is
+ procedure Check_Variant (Variant : Node_Id; UU_Typ : Entity_Id) is
Clist : constant Node_Id := Component_List (Variant);
Comp : Node_Id;
Comp := First (Component_Items (Clist));
while Present (Comp) loop
- Check_Component (Comp);
+ Check_Component (Comp, UU_Typ, In_Variant_Part => True);
Next (Comp);
end loop;
end Check_Variant;
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 --
------------------------
Proc := Entity (Name);
if Ekind (Proc) /= E_Procedure
- or else Present (First_Formal (Proc)) then
+ or else Present (First_Formal (Proc))
+ then
Error_Pragma_Arg
("argument of pragma% must be parameterless procedure", Arg);
end if;
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
(Chars (Arg), Names (Index1))
then
Error_Msg_Name_1 := Names (Index1);
- Error_Msg_N ("\possible misspelling of%", Arg);
+ Error_Msg_N -- CODEFIX
+ ("\possible misspelling of%", Arg);
exit;
end if;
end loop;
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);
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 that
- -- this step is necessary for derived types.
+ -- 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 --
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)))
Set_Has_Delayed_Freeze (E);
end if;
- -- 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.
- -- 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.
+ -- 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 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.
Utyp := Underlying_Type (Etype (E));
Arg1x : constant Node_Id := Get_Pragma_Arg (Arg1);
begin
- GNAT_Pragma;
Check_Arg_Count (2);
Check_No_Identifiers;
Check_Arg_Is_Static_Expression (Arg2, Standard_String);
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 through segments of message separated by line
- -- feeds. We output these segments as separate messages
- -- with continuation marks for all but the first.
-
loop
Error_Msg_Strlen := 0;
- -- Loop to copy characters from argument to error
- -- message string buffer.
+ -- Loop to copy characters from argument to error message
+ -- string buffer.
loop
exit when Ptr > Len;
Error_Msg_Warn := Prag_Id = Pragma_Compile_Time_Warning;
- if Cont = False then
- Error_Msg_N ("<~", Arg1);
- Cont := True;
+ -- 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
- Error_Msg_N ("\<~", Arg1);
+ if Cont = False then
+ Error_Msg_N ("<~", Arg1);
+ Cont := True;
+ else
+ Error_Msg_N ("\<~", Arg1);
+ end if;
end if;
exit when Ptr > Len;
------------------------
procedure Process_Convention
- (C : out Convention_Id;
- E : out Entity_Id)
+ (C : out Convention_Id;
+ Ent : out Entity_Id)
is
Id : Node_Id;
+ E : Entity_Id;
E1 : Entity_Id;
Cname : Name_Id;
Comp_Unit : Unit_Number_Type;
+ procedure Diagnose_Multiple_Pragmas (S : Entity_Id);
+ -- Called if we have more than one Export/Import/Convention pragma.
+ -- This is generally illegal, but we have a special case of allowing
+ -- Import and Interface to coexist if they specify the convention in
+ -- a consistent manner. We are allowed to do this, since Interface is
+ -- an implementation defined pragma, and we choose to do it since we
+ -- know Rational allows this combination. S is the entity id of the
+ -- subprogram in question. This procedure also sets the special flag
+ -- Import_Interface_Present in both pragmas in the case where we do
+ -- have matching Import and Interface pragmas.
+
procedure Set_Convention_From_Pragma (E : Entity_Id);
-- Set convention in entity E, and also flag that the entity has a
-- convention pragma. If entity is for a private or incomplete type,
-- also set convention and flag on underlying type. This procedure
-- also deals with the special case of C_Pass_By_Copy convention.
- --------------------------------
- -- Set_Convention_From_Pragma --
- --------------------------------
+ -------------------------------
+ -- Diagnose_Multiple_Pragmas --
+ -------------------------------
- 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!
+ procedure Diagnose_Multiple_Pragmas (S : Entity_Id) is
+ Pdec : constant Node_Id := Declaration_Node (S);
+ Decl : Node_Id;
+ Err : Boolean;
- 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;
+ function Same_Convention (Decl : Node_Id) return Boolean;
+ -- Decl is a pragma node. This function returns True if this
+ -- pragma has a first argument that is an identifier with a
+ -- Chars field corresponding to the Convention_Id C.
- -- Set the convention
+ function Same_Name (Decl : Node_Id) return Boolean;
+ -- Decl is a pragma node. This function returns True if this
+ -- pragma has a second argument that is an identifier with a
+ -- Chars field that matches the Chars of the current subprogram.
- Set_Convention (E, C);
- Set_Has_Convention_Pragma (E);
+ ---------------------
+ -- Same_Convention --
+ ---------------------
- if Is_Incomplete_Or_Private_Type (E) then
- Set_Convention (Underlying_Type (E), C);
- Set_Has_Convention_Pragma (Underlying_Type (E), True);
- end if;
+ function Same_Convention (Decl : Node_Id) return Boolean is
+ Arg1 : constant Node_Id :=
+ First (Pragma_Argument_Associations (Decl));
+
+ begin
+ if Present (Arg1) then
+ declare
+ Arg : constant Node_Id := Get_Pragma_Arg (Arg1);
+ begin
+ if Nkind (Arg) = N_Identifier
+ and then Is_Convention_Name (Chars (Arg))
+ and then Get_Convention_Id (Chars (Arg)) = C
+ then
+ return True;
+ end if;
+ end;
+ end if;
- -- A class-wide type should inherit the convention of
- -- the specific root type (although this isn't specified
- -- clearly by the RM).
+ return False;
+ end Same_Convention;
- if Is_Type (E) and then Present (Class_Wide_Type (E)) then
- Set_Convention (Class_Wide_Type (E), C);
- end if;
+ ---------------
+ -- Same_Name --
+ ---------------
- -- 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).
+ function Same_Name (Decl : Node_Id) return Boolean is
+ Arg1 : constant Node_Id :=
+ First (Pragma_Argument_Associations (Decl));
+ Arg2 : Node_Id;
- if Cname = Name_C_Pass_By_Copy then
- if Is_Record_Type (E) then
- Set_C_Pass_By_Copy (Base_Type (E));
- elsif Is_Incomplete_Or_Private_Type (E)
- and then Is_Record_Type (Underlying_Type (E))
- then
- Set_C_Pass_By_Copy (Base_Type (Underlying_Type (E)));
- else
- Error_Pragma_Arg
- ("C_Pass_By_Copy convention allowed only for record type",
- Arg2);
+ begin
+ if No (Arg1) then
+ return False;
end if;
- end if;
- -- If the entity is a derived boolean type, check for the
- -- special case of convention C, C++, or Fortran, where we
- -- consider any nonzero value to represent true.
+ Arg2 := Next (Arg1);
- if Is_Discrete_Type (E)
- and then Root_Type (Etype (E)) = Standard_Boolean
- and then
+ if No (Arg2) then
+ return False;
+ end if;
+
+ declare
+ Arg : constant Node_Id := Get_Pragma_Arg (Arg2);
+ begin
+ if Nkind (Arg) = N_Identifier
+ and then Chars (Arg) = Chars (S)
+ then
+ return True;
+ end if;
+ end;
+
+ return False;
+ end Same_Name;
+
+ -- Start of processing for Diagnose_Multiple_Pragmas
+
+ begin
+ Err := True;
+
+ -- Definitely give message if we have Convention/Export here
+
+ if Prag_Id = Pragma_Convention or else Prag_Id = Pragma_Export then
+ null;
+
+ -- If we have an Import or Export, scan back from pragma to
+ -- find any previous pragma applying to the same procedure.
+ -- The scan will be terminated by the start of the list, or
+ -- hitting the subprogram declaration. This won't allow one
+ -- pragma to appear in the public part and one in the private
+ -- part, but that seems very unlikely in practice.
+
+ else
+ Decl := Prev (N);
+ while Present (Decl) and then Decl /= Pdec loop
+
+ -- Look for pragma with same name as us
+
+ if Nkind (Decl) = N_Pragma
+ and then Same_Name (Decl)
+ then
+ -- Give error if same as our pragma or Export/Convention
+
+ if Pragma_Name (Decl) = Name_Export
+ or else
+ Pragma_Name (Decl) = Name_Convention
+ or else
+ Pragma_Name (Decl) = Pragma_Name (N)
+ then
+ exit;
+
+ -- Case of Import/Interface or the other way round
+
+ elsif Pragma_Name (Decl) = Name_Interface
+ or else
+ Pragma_Name (Decl) = Name_Import
+ then
+ -- Here we know that we have Import and Interface. It
+ -- doesn't matter which way round they are. See if
+ -- they specify the same convention. If so, all OK,
+ -- and set special flags to stop other messages
+
+ if Same_Convention (Decl) then
+ Set_Import_Interface_Present (N);
+ Set_Import_Interface_Present (Decl);
+ Err := False;
+
+ -- If different conventions, special message
+
+ else
+ Error_Msg_Sloc := Sloc (Decl);
+ Error_Pragma_Arg
+ ("convention differs from that given#", Arg1);
+ return;
+ end if;
+ end if;
+ end if;
+
+ Next (Decl);
+ end loop;
+ end if;
+
+ -- Give message if needed if we fall through those tests
+
+ if Err then
+ Error_Pragma_Arg
+ ("at most one Convention/Export/Import pragma is allowed",
+ Arg2);
+ end if;
+ end Diagnose_Multiple_Pragmas;
+
+ --------------------------------
+ -- Set_Convention_From_Pragma --
+ --------------------------------
+
+ 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);
+
+ if Is_Incomplete_Or_Private_Type (E) then
+ Set_Convention (Underlying_Type (E), C);
+ Set_Has_Convention_Pragma (Underlying_Type (E), True);
+ end if;
+
+ -- A class-wide type should inherit the convention of the specific
+ -- root type (although this isn't specified clearly by the RM).
+
+ if Is_Type (E) and then Present (Class_Wide_Type (E)) then
+ 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 only permitted
+ -- on record types (see AI95-00131).
+
+ if Cname = Name_C_Pass_By_Copy then
+ if Is_Record_Type (E) then
+ Set_C_Pass_By_Copy (Base_Type (E));
+ elsif Is_Incomplete_Or_Private_Type (E)
+ and then Is_Record_Type (Underlying_Type (E))
+ then
+ Set_C_Pass_By_Copy (Base_Type (Underlying_Type (E)));
+ else
+ Error_Pragma_Arg
+ ("C_Pass_By_Copy convention allowed only for record type",
+ Arg2);
+ end if;
+ end if;
+
+ -- If the entity is a derived boolean type, check for the special
+ -- case of convention C, C++, or Fortran, where we consider any
+ -- nonzero value to represent true.
+
+ if Is_Discrete_Type (E)
+ and then Root_Type (Etype (E)) = Standard_Boolean
+ and then
(C = Convention_C
or else
C = Convention_CPP
Check_Arg_Is_Identifier (Arg1);
Cname := Chars (Expression (Arg1));
- -- C_Pass_By_Copy is treated as a synonym for convention C
- -- (this is tested again below to set the critical flag)
-
+ -- C_Pass_By_Copy is treated as a synonym for convention C (this is
+ -- tested again below to set the critical flag).
if Cname = Name_C_Pass_By_Copy then
C := Convention_C;
E := Entity (Id);
+ -- Set entity to return
+
+ Ent := E;
+
-- 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 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;
+
E := Alias (E);
- elsif Nkind (Parent (E)) = N_Full_Type_Declaration
+ elsif Nkind_In (Parent (E), N_Full_Type_Declaration,
+ N_Private_Extension_Declaration)
and then Scope (E) = Scope (Alias (E))
then
E := Alias (E);
+
+ -- Return the parent subprogram the entity was inherited from
+
+ Ent := E;
end if;
end if;
-- Check that we are not applying this to a named constant
- if Ekind (E) = E_Named_Integer
- or else
- Ekind (E) = E_Named_Real
- then
- Error_Msg_Name_1 := Chars (N);
+ if Ekind_In (E, E_Named_Integer, E_Named_Real) then
+ Error_Msg_Name_1 := Pname;
Error_Msg_N
("cannot apply pragma% to named constant!",
Get_Pragma_Arg (Arg2));
end if;
if Has_Convention_Pragma (E) then
- Error_Pragma_Arg
- ("at most one Convention/Export/Import pragma is allowed", Arg2);
+ Diagnose_Multiple_Pragmas (E);
elsif Convention (E) = Convention_Protected
or else Ekind (Scope (E)) = E_Protected_Type
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)",
Set_Convention_From_Pragma (E);
if Is_Type (E) then
-
Check_First_Subtype (Arg2);
Set_Convention_From_Pragma (Base_Type (E));
Generate_Reference (E, Id, 'b');
end if;
- E1 := E;
+ -- Loop through the homonyms of the pragma argument's entity
+
+ E1 := Ent;
loop
E1 := Homonym (E1);
exit when No (E1) or else Scope (E1) /= Current_Scope;
+ -- 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
- Generate_Reference (E, Id, 'b');
+ Generate_Reference (E1, Id, 'b');
end if;
end if;
end loop;
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;
Process_Extended_Import_Export_Internal_Arg (Arg_Internal);
Def_Id := Entity (Arg_Internal);
- if Ekind (Def_Id) /= E_Constant
- and then Ekind (Def_Id) /= E_Variable
- then
+ if not Ekind_In (Def_Id, E_Constant, E_Variable) then
Error_Pragma_Arg
("pragma% must designate an object", Arg_Internal);
end if;
end if;
if Warn_On_Export_Import and then Is_Exported (Def_Id) then
- Error_Msg_N
- ("?duplicate Export_Object pragma", N);
+ Error_Msg_N ("?duplicate Export_Object pragma", N);
else
Set_Exported (Def_Id, Arg_Internal);
end if;
("?duplicate Import_Object pragma", N);
-- Check for explicit initialization present. Note that an
- -- initialization that generated by the code generator, e.g.
- -- for an access type, does not count here.
+ -- initialization generated by the code generator, e.g. for an
+ -- access type, does not count here.
elsif Present (Expression (Parent (Def_Id)))
and then
"\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;
function Same_Base_Type
(Ptype : Node_Id;
Formal : Entity_Id) return Boolean;
- -- Determines if Ptype references the type of Formal. Note that
- -- only the base types need to match according to the spec. Ptype
- -- here is the argument from the pragma, which is either a type
- -- name, or an access attribute.
+ -- Determines if Ptype references the type of Formal. Note that only
+ -- the base types need to match according to the spec. Ptype here is
+ -- the argument from the pragma, which is either a type name, or an
+ -- access attribute.
--------------------
-- Same_Base_Type --
end if;
-- We have a match if the corresponding argument is of an
- -- anonymous access type, and its designicated type matches
- -- the type of the prefix of the access attribute
+ -- anonymous access type, and its designated type matches the
+ -- type of the prefix of the access attribute
return Ekind (Ftyp) = E_Anonymous_Access_Type
and then Base_Type (Entity (Pref)) =
raise Pragma_Exit;
end if;
- -- We have a match if the corresponding argument is of
- -- the type given in the pragma (comparing base types)
+ -- We have a match if the corresponding argument is of the type
+ -- given in the pragma (comparing base types)
return Base_Type (Entity (Ptype)) = Ftyp;
end if;
-- 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);
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
then
null;
- -- In all other cases, set entit as exported
+ -- In all other cases, set entity as exported
else
Set_Exported (Ent, Arg_Internal);
Formal := First_Formal (Ent);
if No (Formal) then
- Error_Pragma
- ("at least one parameter required for pragma%");
+ Error_Pragma ("at least one parameter required for pragma%");
elsif Ekind (Formal) /= E_Out_Parameter then
- Error_Pragma
- ("first parameter must have mode out for pragma%");
+ Error_Pragma ("first parameter must have mode out for pragma%");
else
Set_Is_Valued_Procedure (Ent);
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;
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_In (Def_Id, E_Variable, E_Constant) then
- 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
Process_Interface_Name (Def_Id, Arg3, Arg4);
-- Note that we do not set Is_Public here. That's because we
- -- only want to set if if there is no address clause, and 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.
then
null;
- -- If it is not a subprogram, it must be in an outer
- -- scope and pragma does not apply.
+ -- If it is not a subprogram, it must be in an outer scope and
+ -- pragma does not apply.
elsif not Is_Subprogram (Def_Id)
and then not Is_Generic_Subprogram (Def_Id)
then
null;
- -- Verify that the homonym is in the same declarative
- -- part (not just the same scope).
+ -- Verify that the homonym is in the same declarative part (not
+ -- just the same scope).
elsif Parent (Unit_Declaration_Node (Def_Id)) /= Parent (N)
and then Nkind (Parent (N)) /= N_Compilation_Unit_Aux
else
Set_Imported (Def_Id);
+ -- Reject an Import applied to an abstract subprogram
+
+ if Is_Subprogram (Def_Id)
+ and then Is_Abstract_Subprogram (Def_Id)
+ then
+ Error_Msg_Sloc := Sloc (Def_Id);
+ Error_Msg_NE
+ ("cannot import abstract subprogram& declared#",
+ Arg2, Def_Id);
+ end if;
+
-- Special processing for Convention_Intrinsic
if C = Convention_Intrinsic then
Set_Is_Intrinsic_Subprogram (Def_Id);
- -- 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 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);
-- Verify that the subprogram does not have a completion
- -- through a renaming declaration. For other completions
- -- the pragma appears as a too late representation.
+ -- through a renaming declaration. For other completions the
+ -- pragma appears as a too late representation.
declare
Decl : constant Node_Id := Unit_Declaration_Node (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);
end loop;
-- When the convention is Java or CIL, we also allow Import to be
- -- given for packages, generic packages, exceptions, and record
- -- components.
+ -- given for packages, generic packages, exceptions, record
+ -- components, and access to subprograms.
elsif (C = Convention_Java or else C = Convention_CIL)
and then
- (Ekind (Def_Id) = E_Package
- or else Ekind (Def_Id) = E_Generic_Package
- or else Ekind (Def_Id) = E_Exception
- or else Nkind (Parent (Def_Id)) = N_Component_Declaration)
+ (Is_Package_Or_Generic_Package (Def_Id)
+ or else Ekind (Def_Id) = E_Exception
+ or else Ekind (Def_Id) = E_Access_Subprogram_Type
+ or else Nkind (Parent (Def_Id)) = N_Component_Declaration)
then
Set_Imported (Def_Id);
Set_Is_Public (Def_Id);
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);
+ -- 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.
- 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;
- 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);
- Set_Is_CPP_Class (Def_Id);
- Set_Is_Limited_Record (Def_Id);
+ -- Imported CPP types must not have discriminants (because C++
+ -- classes do not have discriminants).
+
+ if Has_Discriminants (Def_Id) then
+ Error_Msg_N
+ ("imported 'C'P'P type cannot have discriminants",
+ First (Discriminant_Specifications
+ (Declaration_Node (Def_Id))));
end if;
+ -- Components of imported CPP types must not have default
+ -- expressions because the constructor (if any) is on the
+ -- C++ side.
+
+ declare
+ Tdef : constant Node_Id :=
+ Type_Definition (Declaration_Node (Def_Id));
+ Clist : Node_Id;
+ Comp : Node_Id;
+
+ begin
+ if Nkind (Tdef) = N_Record_Definition then
+ Clist := Component_List (Tdef);
+
+ else
+ pragma Assert (Nkind (Tdef) = N_Derived_Type_Definition);
+ Clist := Component_List (Record_Extension_Part (Tdef));
+ end if;
+
+ if Present (Clist) then
+ Comp := First (Component_Items (Clist));
+ while Present (Comp) loop
+ if Present (Expression (Comp)) then
+ Error_Msg_N
+ ("component of imported 'C'P'P type cannot have" &
+ " default expression", Expression (Comp));
+ end if;
+
+ Next (Comp);
+ end loop;
+ end if;
+ end;
+
else
Error_Pragma_Arg
("second argument of pragma% must be object or subprogram",
Arg2);
end if;
- -- If this pragma applies to a compilation unit, then the unit,
- -- which is a subprogram, does not require (or allow) a body.
- -- We also do not need to elaborate imported procedures.
+ -- If this pragma applies to a compilation unit, then the unit, which
+ -- is a subprogram, does not require (or allow) a body. We also do
+ -- not need to elaborate imported procedures.
if Nkind (Parent (N)) = N_Compilation_Unit_Aux then
declare
Effective : Boolean := False;
procedure Make_Inline (Subp : Entity_Id);
- -- Subp is the defining unit name of the subprogram
- -- declaration. Set the flag, as well as the flag in the
- -- corresponding body, if there is one present.
+ -- Subp is the defining unit name of the subprogram declaration. Set
+ -- the flag, as well as the flag in the corresponding body, if there
+ -- is one present.
procedure Set_Inline_Flags (Subp : Entity_Id);
-- Sets Is_Inlined and Has_Pragma_Inline flags for Subp and also
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 examle if the body is available and contains
+ -- 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
Error_Msg_N ("pragma appears too late, ignored?", N);
return True;
- -- If the subprogram is a renaming as body, the body is
- -- just a call to the renamed subprogram, and inlining is
- -- trivially possible.
+ -- If the subprogram is a renaming as body, the body is just a
+ -- call to the renamed subprogram, and inlining is trivially
+ -- possible.
elsif
Nkind (Unit_Declaration_Node (Corresponding_Body (Decl))) =
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.
+ -- 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
return;
end if;
- -- Processing for procedure, operator or function.
- -- If subprogram is aliased (as for an instance) indicate
- -- that the renamed entity (if declared in the same unit)
- -- is inlined.
+ -- Processing for procedure, operator or function. If subprogram
+ -- is aliased (as for an instance) indicate that the renamed
+ -- entity (if declared in the same unit) is inlined.
if Is_Subprogram (Subp) then
- while Present (Alias (Inner_Subp)) loop
- Inner_Subp := Alias (Inner_Subp);
- end loop;
+ Inner_Subp := Ultimate_Alias (Inner_Subp);
if In_Same_Source_Unit (Subp, Inner_Subp) then
Set_Inline_Flags (Inner_Subp);
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;
Applies := True;
- -- For a generic subprogram set flag as well, for use at
- -- the point of instantiation, to determine whether the
- -- body should be generated.
+ -- For a generic subprogram set flag as well, for use at the point
+ -- of instantiation, to determine whether the body should be
+ -- generated.
elsif Is_Generic_Subprogram (Subp) then
Set_Inline_Flags (Subp);
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) = ' '
- and then VM_Target /= CLI_Target)
- 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 CLI target,
+ -- commas, spaces and slashes are dubious (in CLI, we use
+ -- commas and backslashes in external names to specify
+ -- assembly version and public key, while slashes and spaces
+ -- can be used in names to mark nested classes and
+ -- valuetypes).
+
+ or else ((not Ext_Name_Case or else VM_Target /= CLI_Target)
+ and then (Get_Character (C) = ','
+ or else
+ Get_Character (C) = '\'))
+ or else (VM_Target /= CLI_Target
+ and then (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;
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;
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
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
- -- be taken literally, and in particular that no prepending of
+ -- asterisk, which indicates to GCC that the given name should be
+ -- taken literally, and in particular that no prepending of
-- underlines should occur, even in systems where this is the
-- normal default.
Set_Encoded_Interface_Name
(Get_Base_Subprogram (Subprogram_Def), Link_Nam);
- Check_Duplicated_Export_Name (Link_Nam);
+
+ -- We allow duplicated export names in CIL, as they are always
+ -- enclosed in a namespace that differentiates them, and overloaded
+ -- entities are supported by the VM.
+
+ if Convention (Subprogram_Def) /= Convention_CIL then
+ Check_Duplicated_Export_Name (Link_Nam);
+ end if;
end Process_Interface_Name;
-----------------------------------------
begin
Set_Is_Interrupt_Handler (Handler_Proc);
- -- If the pragma is not associated with a handler procedure
- -- within a protected type, then it must be for a nonprotected
- -- procedure for the AAMP target, in which case we don't
- -- associate a representation item with the procedure's scope.
+ -- If the pragma is not associated with a handler procedure within a
+ -- protected type, then it must be for a nonprotected procedure for
+ -- the AAMP target, in which case we don't associate a representation
+ -- item with the procedure's scope.
if Ekind (Proc_Scope) = E_Protected_Type then
if Prag_Id = Pragma_Interrupt_Handler
(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 -- CODEFIX
+ ("\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;
-- If this is a warning, then set the warning unless we already
Restriction_Warnings (R_Id) := False;
end if;
+ -- Check for obsolescent restrictions in Ada 2005 mode
+
+ if not Warn
+ and then Ada_Version >= Ada_2005
+ and then (R_Id = No_Asynchronous_Control
+ or else
+ R_Id = No_Unchecked_Deallocation
+ or else
+ R_Id = No_Unchecked_Conversion)
+ then
+ Check_Restriction (No_Obsolescent_Features, N);
+ 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
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);
-- Start of processing for Process_Suppress_Unsuppress
begin
- -- Suppress/Unsuppress can appear as a configuration pragma,
- -- or in a declarative part or a package spec (RM 11.5(5))
+ -- Suppress/Unsuppress can appear as a configuration pragma, or in a
+ -- declarative part or a package spec (RM 11.5(5)).
if not Is_Configuration_Pragma then
Check_Is_In_Decl_Part_Or_Package_Spec;
-- a specified entity (given as the second argument of the pragma)
else
+ -- This is obsolescent in Ada 2005 mode
+
+ if Ada_Version >= Ada_2005 then
+ Check_Restriction (No_Obsolescent_Features, Arg2);
+ end if;
+
Check_Optional_Identifier (Arg2, Name_On);
E_Id := Expression (Arg2);
Analyze (E_Id);
E := Homonym (E);
exit when No (E);
- -- If we are within a package specification, the
- -- pragma only applies to homonyms in the same scope.
+ -- If we are within a package specification, the pragma only
+ -- applies to homonyms in the same scope.
exit when In_Package_Spec
and then Scope (E) /= Current_Scope;
Set_Is_Public (E);
Set_Is_Statically_Allocated (E);
- -- Warn if the corresponding W flag is set and the pragma
- -- comes from source. The latter may not be true e.g. on
- -- VMS where we expand export pragmas for exception codes
- -- associated with imported or exported exceptions. We do
- -- not want to generate a warning for something that the
- -- user did not write.
+ -- Warn if the corresponding W flag is set and the pragma comes
+ -- from source. The latter may not be true e.g. on VMS where we
+ -- expand export pragmas for exception codes associated with
+ -- imported or exported exceptions. We do not want to generate
+ -- a warning for something that the user did not write.
if Warn_On_Export_Import
and then Comes_From_Source (Arg)
end if;
if Warn_On_Export_Import and then Is_Type (E) then
- Error_Msg_NE
- ("exporting a type has no effect?", Arg, E);
+ Error_Msg_NE ("exporting a type has no effect?", Arg, E);
end if;
if Warn_On_Export_Import and Inside_A_Generic then
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).
+ -- Check_Arg_Is_External_Name should let through only identifiers and
+ -- string literals or static string expressions (which are folded to
+ -- string literals).
else
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 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
Check_Matching_Internal_Names : declare
-- Error message if already imported or exported
if Is_Exported (E) or else Is_Imported (E) then
+
+ -- Error if being set Exported twice
+
if Is_Exported (E) then
Error_Msg_NE ("entity& was previously exported", N, E);
+
+ -- OK if Import/Interface case
+
+ elsif Import_Interface_Present (N) then
+ goto OK;
+
+ -- Error if being set Imported twice
+
else
Error_Msg_NE ("entity& was previously imported", N, E);
end if;
- Error_Msg_Name_1 := Chars (N);
+ Error_Msg_Name_1 := Pname;
Error_Msg_N
("\(pragma% applies to all previous entities)", N);
else
Set_Is_Imported (E);
- -- If the entity is an object that is not at the library
- -- level, then it is statically allocated. We do not worry
- -- about objects with address clauses in this context since
- -- they are not really imported in the linker sense.
+ -- If the entity is an object that is not at the library level,
+ -- then it is statically allocated. We do not worry about objects
+ -- with address clauses in this context since they are not really
+ -- imported in the linker sense.
if Is_Object (E)
and then not Is_Library_Level_Entity (E)
Set_Is_Statically_Allocated (E);
end if;
end if;
+
+ <<OK>> null;
end Set_Imported;
-------------------------
-- Set_Mechanism_Value --
-------------------------
- -- Note: the mechanism name has not been analyzed (and cannot indeed
- -- be analyzed, since it is semantic nonsense), so we get it in the
- -- exact form created by the parser.
+ -- Note: the mechanism name has not been analyzed (and cannot indeed be
+ -- analyzed, since it is semantic nonsense), so we get it in the exact
+ -- form created by the parser.
procedure Set_Mechanism_Value (Ent : Entity_Id; Mech_Name : Node_Id) is
- Class : Node_Id;
- Param : Node_Id;
+ Class : Node_Id;
+ Param : Node_Id;
+ Mech_Name_Id : Name_Id;
procedure Bad_Class;
-- Signal bad descriptor class 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
elsif Chars (Mech_Name) = Name_Descriptor then
Check_VMS (Mech_Name);
- Set_Mechanism (Ent, By_Descriptor);
+
+ -- Descriptor => Short_Descriptor if pragma was given
+
+ if Short_Descriptors then
+ Set_Mechanism (Ent, By_Short_Descriptor);
+ else
+ Set_Mechanism (Ent, By_Descriptor);
+ end if;
+
+ 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
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
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));
+
+ -- Change Descriptor => Short_Descriptor if pragma was given
+
+ if Mech_Name_Id = Name_Descriptor
+ and then Short_Descriptors
+ then
+ Mech_Name_Id := Name_Short_Descriptor;
+ end if;
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
elsif Nkind (Mech_Name) = N_Function_Call then
-
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;
-- Set the corresponding restrictions
- Set_Profile_Restrictions (Ravenscar, N, Warn => False);
+ Set_Profile_Restrictions
+ (Ravenscar, N, Warn => Treat_Restrictions_As_Warnings);
end Set_Ravenscar_Profile;
-- Start of processing for Analyze_Pragma
begin
-- Deal with unrecognized pragma
- if not Is_Pragma_Name (Chars (N)) then
+ if not Is_Pragma_Name (Pname) then
if Warn_On_Unrecognized_Pragma then
- Error_Msg_Name_1 := Chars (N);
+ 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 (Chars (N), PN) then
+ if Is_Bad_Spelling_Of (Pname, PN) then
Error_Msg_Name_1 := PN;
- Error_Msg_N
+ Error_Msg_N -- CODEFIX
("\?possible misspelling of %!", Pragma_Identifier (N));
exit;
end if;
-- Here to start processing for recognized pragma
- Prag_Id := Get_Pragma_Id (Chars (N));
+ Prag_Id := Get_Pragma_Id (Pname);
-- Preset arguments
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
-- 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.
+ -- However, we really cannot tolerate mixing Ada 2005 or Ada 2012
+ -- with Ada 83 or Ada 95, so we must check if we are in Ada 2005
+ -- or Ada 2012 mode.
if Ada_Version >= Ada_05 then
Check_Valid_Configuration_Pragma;
-- pragma Ada_2005;
-- pragma Ada_2005 (LOCAL_NAME):
- -- Note: these pragma also have some specific processing in Par.Prag
+ -- Note: these pragmas 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
end if;
end;
+ ---------------------
+ -- Ada_12/Ada_2012 --
+ ---------------------
+
+ -- pragma Ada_12;
+ -- pragma Ada_12 (LOCAL_NAME);
+
+ -- pragma Ada_2012;
+ -- pragma Ada_2012 (LOCAL_NAME):
+
+ -- Note: these pragmas also have some specific processing in Par.Prag
+ -- because we want to set the Ada 2012 version mode during parsing.
+
+ when Pragma_Ada_12 | Pragma_Ada_2012 => 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_2012_Only (Entity (E_Id));
+
+ else
+ Check_Arg_Count (0);
+
+ -- For Ada_2012 we unconditionally enforce the documented
+ -- configuration pragma placement, since we do not want to
+ -- tolerate mixed modes in a unit involving Ada 2012. That
+ -- would cause real difficulties for those cases where there
+ -- are incompatibilities between Ada 95 and Ada 2012. We could
+ -- allow mixing of Ada 2005 and Ada 2012 but it's not worth it.
+
+ Check_Valid_Configuration_Pragma;
+
+ -- Now set Ada 2012 mode
+
+ Ada_Version := Ada_12;
+ Ada_Version_Explicit := Ada_12;
+ end if;
+ end;
+
----------------------
-- All_Calls_Remote --
----------------------
-- Annotate --
--------------
- -- pragma Annotate (IDENTIFIER {, ARG});
+ -- pragma Annotate (IDENTIFIER [, IDENTIFIER {, ARG}]);
-- ARG ::= NAME | EXPRESSION
+ -- The first two arguments are by convention intended to refer to an
+ -- external tool and a tool-specific function. These arguments are
+ -- not analyzed.
+
when Pragma_Annotate => Annotate : begin
GNAT_Pragma;
Check_At_Least_N_Arguments (1);
Check_Arg_Is_Identifier (Arg1);
+ Check_No_Identifiers;
+ Store_Note (N);
declare
Arg : Node_Id;
Exp : Node_Id;
begin
- Arg := Arg2;
- while Present (Arg) loop
- Exp := Expression (Arg);
- Analyze (Exp);
+ -- Second unanalyzed parameter is optional
- if Is_Entity_Name (Exp) then
- null;
-
- elsif Nkind (Exp) = N_String_Literal then
- Resolve (Exp, Standard_String);
+ if No (Arg2) then
+ null;
+ else
+ Arg := Next (Arg2);
+ while Present (Arg) loop
+ Exp := Expression (Arg);
+ Analyze (Exp);
+
+ if Is_Entity_Name (Exp) then
+ null;
+
+ -- For string literals, we assume Standard_String as the
+ -- type, unless the string contains wide or wide_wide
+ -- characters.
+
+ elsif Nkind (Exp) = N_String_Literal then
+ if Has_Wide_Wide_Character (Exp) then
+ Resolve (Exp, Standard_Wide_Wide_String);
+ elsif Has_Wide_Character (Exp) then
+ Resolve (Exp, Standard_Wide_String);
+ else
+ Resolve (Exp, Standard_String);
+ end if;
- elsif Is_Overloaded (Exp) then
- Error_Pragma_Arg ("ambiguous argument for pragma%", Exp);
+ elsif Is_Overloaded (Exp) then
+ Error_Pragma_Arg
+ ("ambiguous argument for pragma%", Exp);
- else
- Resolve (Exp);
- end if;
+ else
+ Resolve (Exp);
+ end if;
- Next (Arg);
- end loop;
+ Next (Arg);
+ end loop;
+ end if;
end;
end Annotate;
when Pragma_Assert => Assert : declare
Expr : Node_Id;
- Eloc : Source_Ptr;
+ Newa : List_Id;
begin
Ada_2005_Pragma;
Check_Arg_Order ((Name_Check, Name_Message));
Check_Optional_Identifier (Arg1, Name_Check);
- if Arg_Count > 1 then
- Check_Optional_Identifier (Arg2, Name_Message);
- Check_Arg_Is_Static_Expression (Arg2, Standard_String);
- end if;
+ -- We treat pragma Assert as equivalent to:
- -- If expansion is active and assertions are inactive, then
- -- we rewrite the Assertion as:
+ -- pragma Check (Assertion, condition [, msg]);
- -- if False and then condition then
- -- null;
- -- end if;
+ -- So rewrite pragma in this manner, and analyze the result
- -- 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.
+ Expr := Get_Pragma_Arg (Arg1);
+ Newa := New_List (
+ Make_Pragma_Argument_Association (Loc,
+ Expression =>
+ Make_Identifier (Loc,
+ Chars => Name_Assertion)),
- -- 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.
+ Make_Pragma_Argument_Association (Sloc (Expr),
+ Expression => Expr));
- Expr := Expression (Arg1);
- Eloc := Sloc (Expr);
-
- if Expander_Active and not Assertions_Enabled then
- 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);
-
- -- Otherwise (if assertions are enabled, or if we are not
- -- operating with expansion active), then we just analyze
- -- and resolve the expression.
-
- else
- Analyze_And_Resolve (Expr, Any_Boolean);
+ if Arg_Count > 1 then
+ Check_Optional_Identifier (Arg2, Name_Message);
+ Analyze_And_Resolve (Get_Pragma_Arg (Arg2), Standard_String);
+ Append_To (Newa, Relocate_Node (Arg2));
end if;
- -- If assertion is of the form (X'First = literal), where X is
- -- formal parameter, 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;
+ Rewrite (N,
+ Make_Pragma (Loc,
+ Chars => Name_Check,
+ Pragma_Argument_Associations => Newa));
+ Analyze (N);
end Assert;
----------------------
-- pragma Assertion_Policy (Check | Ignore)
- when Pragma_Assertion_Policy =>
+ when Pragma_Assertion_Policy => Assertion_Policy : declare
+ Policy : Node_Id;
+
+ 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);
- Assertions_Enabled := Chars (Expression (Arg1)) = Name_Check;
+
+ -- 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);
+
+ 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
+ Assume_No_Invalid_Values := False;
+ end if;
---------------
-- AST_Entry --
and then not Is_Remote_Types (C_Ent)
then
-- This pragma should only appear in an RCI or Remote Types
- -- unit (RM E.4.1(4))
+ -- unit (RM E.4.1(4)).
Error_Pragma
("pragma% not in Remote_Call_Interface or " &
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.
+ if Is_Record_Type (Nm) then
- N := Declaration_Node (Corresponding_Remote_Type (Nm));
+ -- A record type that is the Equivalent_Type for a remote
+ -- access-to-subprogram type.
- else
- -- A non-expanded RAS type (case where distribution is
- -- not enabled).
+ N := Declaration_Node (Corresponding_Remote_Type (Nm));
- N := Declaration_Node (Nm);
- end if;
+ else
+ -- A non-expanded RAS type (distribution is not enabled)
+
+ N := Declaration_Node (Nm);
+ end if;
if Nkind (N) = N_Full_Type_Declaration
and then Nkind (Type_Definition (N)) =
if Prag_Id = Pragma_Atomic_Components then
Set_Has_Atomic_Components (E);
-
- if Is_Packed (E) then
- Set_Is_Packed (E, False);
-
- Error_Pragma_Arg
- ("?Pack canceled, cannot pack atomic components",
- Arg1);
- end if;
end if;
else
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);
+
+ -- Indicate if pragma is enabled. The Original_Node reference here
+ -- is to deal with pragma Assert rewritten as a Check pragma.
+
+ Check_On := Check_Enabled (Chars (Get_Pragma_Arg (Arg1)));
+
+ if Check_On then
+ Set_Pragma_Enabled (N);
+ Set_Pragma_Enabled (Original_Node (N));
+ Set_SCO_Pragma_Enabled (Loc);
+ end if;
+
+ -- 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;
+ end Check;
+
----------------
-- Check_Name --
----------------
Check_Names.Append (Nam);
end;
+ ------------------
+ -- Check_Policy --
+ ------------------
+
+ -- pragma Check_Policy (
+ -- [Name =>] IDENTIFIER,
+ -- [Policy =>] 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_Optional_Identifier (Arg1, Name_Name);
+ Check_Optional_Identifier (Arg2, Name_Policy);
+ 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 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 --
-- (boolean_EXPRESSION, static_string_EXPRESSION);
when Pragma_Compile_Time_Error =>
+ GNAT_Pragma;
Process_Compile_Time_Warning_Or_Error;
--------------------------
-- (boolean_EXPRESSION, static_string_EXPRESSION);
when Pragma_Compile_Time_Warning =>
+ GNAT_Pragma;
Process_Compile_Time_Warning_Or_Error;
-------------------
Check_Arg_Is_Identifier (Form);
- -- Get proper alignment, note that Default = Component_Size
- -- on all machines we have so far, and we want to set this
- -- value rather than the default value to indicate that it
- -- has been explicitly set (and thus will not get overridden
- -- by the default component alignment for the current scope)
+ -- Get proper alignment, note that Default = Component_Size on all
+ -- machines we have so far, and we want to set this value rather
+ -- than the default value to indicate that it has been explicitly
+ -- set (and thus will not get overridden by the default component
+ -- alignment for the current scope)
if Chars (Form) = Name_Component_Size then
Atype := Calign_Component_Size;
Set_Is_CPP_Class (Typ);
Set_Is_Limited_Record (Typ);
Set_Convention (Typ, Convention_CPP);
+
+ -- Imported CPP types must not have discriminants (because C++
+ -- classes do not have discriminants).
+
+ if Has_Discriminants (Typ) then
+ Error_Msg_N
+ ("imported 'C'P'P type cannot have discriminants",
+ First (Discriminant_Specifications
+ (Declaration_Node (Typ))));
+ end if;
+
+ -- Components of imported CPP types must not have default
+ -- expressions because the constructor (if any) is in the
+ -- C++ side.
+
+ if Is_Incomplete_Or_Private_Type (Typ)
+ and then No (Underlying_Type (Typ))
+ then
+ -- It should be an error to apply pragma CPP to a private
+ -- type if the underlying type is not visible (as it is
+ -- for any representation item). For now, for backward
+ -- compatibility we do nothing but we cannot check components
+ -- because they are not available at this stage. All this code
+ -- will be removed when we cleanup this obsolete GNAT pragma???
+
+ null;
+
+ else
+ declare
+ Tdef : constant Node_Id :=
+ Type_Definition (Declaration_Node (Typ));
+ Clist : Node_Id;
+ Comp : Node_Id;
+
+ begin
+ if Nkind (Tdef) = N_Record_Definition then
+ Clist := Component_List (Tdef);
+ else
+ pragma Assert (Nkind (Tdef) = N_Derived_Type_Definition);
+ Clist := Component_List (Record_Extension_Part (Tdef));
+ end if;
+
+ if Present (Clist) then
+ Comp := First (Component_Items (Clist));
+ while Present (Comp) loop
+ if Present (Expression (Comp)) then
+ Error_Msg_N
+ ("component of imported 'C'P'P type cannot have" &
+ " default expression", Expression (Comp));
+ end if;
+
+ Next (Comp);
+ end loop;
+ end if;
+ end;
+ end if;
end CPP_Class;
---------------------
-- [, [Link_Name =>] static_string_EXPRESSION ]);
when Pragma_CPP_Constructor => CPP_Constructor : declare
- Id : Entity_Id;
- Def_Id : Entity_Id;
+ Elmt : Elmt_Id;
+ Id : Entity_Id;
+ Def_Id : Entity_Id;
+ Tag_Typ : Entity_Id;
begin
GNAT_Pragma;
Def_Id := Entity (Id);
+ -- Check if already defined as constructor
+
+ if Is_Constructor (Def_Id) then
+ Error_Msg_N
+ ("?duplicate argument for pragma 'C'P'P_Constructor", Arg1);
+ return;
+ end if;
+
if Ekind (Def_Id) = E_Function
- and then Is_Class_Wide_Type (Etype (Def_Id))
- and then Is_CPP_Class (Etype (Etype (Def_Id)))
+ and then (Is_CPP_Class (Etype (Def_Id))
+ or else (Is_Class_Wide_Type (Etype (Def_Id))
+ and then
+ Is_CPP_Class (Root_Type (Etype (Def_Id)))))
then
if Arg_Count >= 2 then
Set_Imported (Def_Id);
Process_Interface_Name (Def_Id, Arg2, Arg3);
end if;
- if No (Parameter_Specifications (Parent (Def_Id))) then
- Set_Has_Completion (Def_Id);
- Set_Is_Constructor (Def_Id);
- else
- Error_Pragma_Arg
- ("non-default constructors not implemented", Arg1);
+ Set_Has_Completion (Def_Id);
+ Set_Is_Constructor (Def_Id);
+
+ -- Imported C++ constructors are not dispatching primitives
+ -- because in C++ they don't have a dispatch table slot.
+ -- However, in Ada the constructor has the profile of a
+ -- function that returns a tagged type and therefore it has
+ -- been treated as a primitive operation during semantic
+ -- analysis. We now remove it from the list of primitive
+ -- operations of the type.
+
+ if Is_Tagged_Type (Etype (Def_Id))
+ and then not Is_Class_Wide_Type (Etype (Def_Id))
+ then
+ pragma Assert (Is_Dispatching_Operation (Def_Id));
+ Tag_Typ := Etype (Def_Id);
+
+ Elmt := First_Elmt (Primitive_Operations (Tag_Typ));
+ while Present (Elmt) and then Node (Elmt) /= Def_Id loop
+ Next_Elmt (Elmt);
+ end loop;
+
+ Remove_Elmt (Primitive_Operations (Tag_Typ), Elmt);
+ Set_Is_Dispatching_Operation (Def_Id, False);
end if;
+ -- For backward compatibility, if the constructor returns a
+ -- class wide type, and we internally change the return type to
+ -- the corresponding root type.
+
+ if Is_Class_Wide_Type (Etype (Def_Id)) then
+ Set_Etype (Def_Id, Root_Type (Etype (Def_Id)));
+ end if;
else
Error_Pragma_Arg
("pragma% requires function returning a 'C'P'P_Class type",
when Pragma_CPP_Virtual => CPP_Virtual : declare
begin
+ GNAT_Pragma;
+
if Warn_On_Obsolescent_Feature then
Error_Msg_N
("'G'N'A'T pragma cpp'_virtual is now obsolete and has " &
when Pragma_CPP_Vtable => CPP_Vtable : declare
begin
+ GNAT_Pragma;
+
if Warn_On_Obsolescent_Feature then
Error_Msg_N
("'G'N'A'T pragma cpp'_vtable is now obsolete and has " &
Check_Valid_Configuration_Pragma;
Detect_Blocking := True;
+ ---------------
+ -- Dimension --
+ ---------------
+
+ when Pragma_Dimension =>
+ GNAT_Pragma;
+ Check_Arg_Count (4);
+ Check_No_Identifiers;
+ Check_Arg_Is_Local_Name (Arg1);
+
+ if not Is_Type (Arg1) then
+ Error_Pragma ("first argument for pragma% must be subtype");
+ end if;
+
+ Check_Arg_Is_Static_Expression (Arg2, Standard_Integer);
+ Check_Arg_Is_Static_Expression (Arg3, Standard_Integer);
+ Check_Arg_Is_Static_Expression (Arg4, Standard_Integer);
+
-------------------
-- 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;
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;
-- 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 the named unit, so we keep the check enabled.
+ -- to the named unit, so we keep the check enabled.
if In_Extended_Main_Source_Unit (N) then
Set_Suppress_Elaboration_Warnings
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
Cunit_Node := Cunit (Current_Sem_Unit);
Cunit_Ent := Cunit_Entity (Current_Sem_Unit);
- if Nkind (Unit (Cunit_Node)) = N_Package_Body
- or else
- Nkind (Unit (Cunit_Node)) = N_Subprogram_Body
+ if Nkind_In (Unit (Cunit_Node), N_Package_Body,
+ N_Subprogram_Body)
then
Error_Pragma ("pragma% must refer to a spec, not a body");
else
-- safe from an elaboration point of view, so a client must
-- still do an Elaborate_All on such units.
- -- Debug flag -gnatdD restores the old behavior of 3.13,
- -- where Elaborate_Body always suppressed elab warnings.
+ -- Debug flag -gnatdD restores the old behavior of 3.13, where
+ -- Elaborate_Body always suppressed elab warnings.
if Dynamic_Elaboration_Checks or Debug_Flag_DD then
Set_Suppress_Elaboration_Warnings (Cunit_Ent);
---------------
-- pragma Eliminate (
- -- [Unit_Name =>] IDENTIFIER |
- -- SELECTED_COMPONENT
- -- [,[Entity =>] IDENTIFIER |
- -- SELECTED_COMPONENT |
- -- STRING_LITERAL]
- -- [,]OVERLOADING_RESOLUTION);
+ -- [Unit_Name =>] IDENTIFIER | SELECTED_COMPONENT,
+ -- [,[Entity =>] IDENTIFIER |
+ -- SELECTED_COMPONENT |
+ -- STRING_LITERAL]
+ -- [, OVERLOADING_RESOLUTION]);
-- OVERLOADING_RESOLUTION ::= PARAMETER_AND_RESULT_TYPE_PROFILE |
-- SOURCE_LOCATION
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;
----------------------
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;
if Chars (Expression (Arg1)) = Name_On then
Extensions_Allowed := True;
+ Ada_Version := Ada_Version_Type'Last;
+
else
Extensions_Allowed := False;
+ Ada_Version := Ada_Version_Explicit;
end if;
--------------
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;
-- If it's an access-to-subprogram type (in particular, not a
-- subtype), set the flag on that type.
- if Ekind (Named_Entity) in Access_Subprogram_Type_Kind then
+ 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)
Typ : Entity_Id;
begin
+ GNAT_Pragma;
Check_No_Identifiers;
Check_Arg_Count (1);
Check_Arg_Is_Local_Name (Arg1);
-- pragma Ident (static_string_EXPRESSION)
- -- Note: pragma Comment shares this processing. Pragma Comment
- -- is identical to Ident, except that the restriction of the
- -- argument to 31 characters and the placement restrictions
- -- are not enforced for pragma Comment.
+ -- Note: pragma Comment shares this processing. Pragma Comment is
+ -- identical to Ident, except that the restriction of the argument to
+ -- 31 characters and the placement restrictions are not enforced for
+ -- pragma Comment.
when Pragma_Ident | Pragma_Comment => Ident : declare
Str : Node_Id;
Check_Arg_Count (1);
Check_No_Identifiers;
Check_Arg_Is_Static_Expression (Arg1, Standard_String);
+ Store_Note (N);
- -- For pragma Ident, preserve DEC compatibility by requiring
- -- the pragma to appear in a declarative part or package spec.
+ -- For pragma Ident, preserve DEC compatibility by requiring the
+ -- pragma to appear in a declarative part or package spec.
if Prag_Id = Pragma_Ident then
Check_Is_In_Decl_Part_Or_Package_Spec;
begin
GP := Parent (Parent (N));
- if Nkind (GP) = N_Package_Declaration
- or else
- Nkind (GP) = N_Generic_Package_Declaration
+ if Nkind_In (GP, N_Package_Declaration,
+ N_Generic_Package_Declaration)
then
GP := Parent (GP);
end if;
- -- If we have a compilation unit, then record the ident
- -- value, checking for improper duplication.
+ -- If we have a compilation unit, then record the ident value,
+ -- checking for improper duplication.
if Nkind (GP) = N_Compilation_Unit then
CS := Ident_String (Current_Sem_Unit);
if Prag_Id = Pragma_Ident then
Error_Pragma ("duplicate% pragma not permitted");
- -- For Comment, we concatenate the string, unless we
- -- want to preserve the tree structure for ASIS.
+ -- For Comment, we concatenate the string, unless we want
+ -- to preserve the tree structure for ASIS.
elsif not ASIS_Mode then
Start_String (Strval (CS));
else
-- In VMS, the effect of IDENT is achieved by passing
- -- IDENTIFICATION=name as a --for-linker switch.
+ -- --identification=name as a --for-linker switch.
if OpenVMS_On_Target then
Start_String;
Store_String_Chars
- ("--for-linker=IDENTIFICATION=");
+ ("--for-linker=--identification=");
String_To_Name_Buffer (Strval (Str));
Store_String_Chars (Name_Buffer (1 .. Name_Len));
-- associated with a with'd package.
Replace_Linker_Option_String
- (End_String, "--for-linker=IDENTIFICATION=");
+ (End_String, "--for-linker=--identification=");
end if;
Set_Ident_String (Current_Sem_Unit, Str);
end if;
- -- For subunits, we just ignore the Ident, since in GNAT
- -- these are not separate object files, and hence not
- -- separate units in the unit table.
+ -- For subunits, we just ignore the Ident, since in GNAT these
+ -- are not separate object files, and hence not separate units
+ -- in the unit table.
elsif Nkind (GP) = N_Subunit then
null;
end;
end Ident;
- --------------------------
- -- Implemented_By_Entry --
- --------------------------
+ -----------------
+ -- Implemented --
+ -----------------
- -- pragma Implemented_By_Entry (DIRECT_NAME);
+ -- pragma Implemented (procedure_LOCAL_NAME, implementation_kind);
+ -- implementation_kind ::= By_Entry | By_Protected_Procedure | By_Any
- when Pragma_Implemented_By_Entry => Implemented_By_Entry : declare
- Ent : Entity_Id;
+ when Pragma_Implemented => Implemented : declare
+ Proc_Id : Entity_Id;
+ Typ : Entity_Id;
begin
- Ada_2005_Pragma;
- Check_Arg_Count (1);
+ Ada_2012_Pragma;
+ Check_Arg_Count (2);
Check_No_Identifiers;
Check_Arg_Is_Identifier (Arg1);
Check_Arg_Is_Local_Name (Arg1);
- Ent := Entity (Expression (Arg1));
+ Check_Arg_Is_One_Of
+ (Arg2, Name_By_Any, Name_By_Entry, Name_By_Protected_Procedure);
- -- Pragma Implemented_By_Entry must be applied only to protected
- -- synchronized or task interface primitives.
+ -- Extract the name of the local procedure
- 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)))
+ Proc_Id := Entity (Expression (Arg1));
+
+ -- Ada 2012 (AI05-0030): The procedure_LOCAL_NAME must denote a
+ -- primitive procedure of a synchronized tagged type.
+
+ if Ekind (Proc_Id) = E_Procedure
+ and then Is_Primitive (Proc_Id)
+ and then Present (First_Formal (Proc_Id))
then
- Error_Pragma_Arg
- ("pragma % must be applied to a concurrent interface " &
- "primitive", Arg1);
+ Typ := Etype (First_Formal (Proc_Id));
- else
- if Einfo.Implemented_By_Entry (Ent)
- and then Warn_On_Redundant_Constructs
+ if Is_Tagged_Type (Typ)
+ and then
+
+ -- Check for a protected, a synchronized or a task interface
+
+ ((Is_Interface (Typ)
+ and then Is_Synchronized_Interface (Typ))
+
+ -- Check for a protected type or a task type that implements
+ -- an interface.
+
+ or else
+ (Is_Concurrent_Record_Type (Typ)
+ and then Present (Interfaces (Typ)))
+
+ -- Check for a private record extension with keyword
+ -- "synchronized".
+
+ or else
+ (Ekind_In (Typ, E_Record_Type_With_Private,
+ E_Record_Subtype_With_Private)
+ and then Synchronized_Present (Parent (Typ))))
then
- Error_Pragma ("?duplicate pragma%!");
+ null;
else
- Set_Implemented_By_Entry (Ent);
+ Error_Pragma_Arg
+ ("controlling formal must be of synchronized " &
+ "tagged type", Arg1);
+ return;
end if;
+
+ -- Procedures declared inside a protected type must be accepted
+
+ elsif Ekind (Proc_Id) = E_Procedure
+ and then Is_Protected_Type (Scope (Proc_Id))
+ then
+ null;
+
+ -- The first argument is not a primitive procedure
+
+ else
+ Error_Pragma_Arg
+ ("pragma % must be applied to a primitive procedure", Arg1);
+ return;
end if;
- end Implemented_By_Entry;
- -----------------------
+ -- Ada 2012 (AI05-0030): Cannot apply the implementation_kind
+ -- By_Protected_Procedure to the primitive procedure of a task
+ -- interface.
+
+ if Chars (Arg2) = Name_By_Protected_Procedure
+ and then Is_Interface (Typ)
+ and then Is_Task_Interface (Typ)
+ then
+ Error_Pragma_Arg
+ ("implementation kind By_Protected_Procedure cannot be " &
+ "applied to a task interface primitive", Arg2);
+ return;
+ end if;
+
+ Record_Rep_Item (Proc_Id, N);
+ end Implemented;
+
+ ----------------------
-- Implicit_Packing --
- -----------------------
+ ----------------------
-- pragma Implicit_Packing;
Code : Node_Id renames Args (4);
begin
+ GNAT_Pragma;
Gather_Associations (Names, Args);
if Present (External) and then Present (Code) then
-- MECHANISM_ASSOCIATION ::=
-- [formal_parameter_NAME =>] MECHANISM_NAME
- -- MECHANISM_NAME ::=
- -- Value
- -- | Reference
- -- | Descriptor [([Class =>] CLASS_NAME)]
+ -- MECHANISM_NAME ::=
+ -- Value
+ -- | Reference
+ -- | Descriptor [([Class =>] CLASS_NAME)]
+
+ -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca
+
+ when Pragma_Import_Valued_Procedure =>
+ Import_Valued_Procedure : declare
+ Args : Args_List (1 .. 5);
+ Names : constant Name_List (1 .. 5) := (
+ Name_Internal,
+ Name_External,
+ Name_Parameter_Types,
+ Name_Mechanism,
+ Name_First_Optional_Parameter);
+
+ Internal : Node_Id renames Args (1);
+ External : Node_Id renames Args (2);
+ Parameter_Types : Node_Id renames Args (3);
+ Mechanism : Node_Id renames Args (4);
+ First_Optional_Parameter : Node_Id renames Args (5);
+
+ begin
+ GNAT_Pragma;
+ Gather_Associations (Names, Args);
+ Process_Extended_Import_Export_Subprogram_Pragma (
+ Arg_Internal => Internal,
+ Arg_External => External,
+ Arg_Parameter_Types => Parameter_Types,
+ Arg_Mechanism => Mechanism,
+ Arg_First_Optional_Parameter => First_Optional_Parameter);
+ end Import_Valued_Procedure;
+
+ -----------------
+ -- Independent --
+ -----------------
+
+ -- pragma Independent (LOCAL_NAME);
+
+ when Pragma_Independent => Independent : declare
+ E_Id : Node_Id;
+ E : Entity_Id;
+ D : Node_Id;
+ K : Node_Kind;
+
+ begin
+ Check_Ada_83_Warning;
+ Ada_2012_Pragma;
+ Check_No_Identifiers;
+ Check_Arg_Count (1);
+ Check_Arg_Is_Local_Name (Arg1);
+ E_Id := Expression (Arg1);
+
+ if Etype (E_Id) = Any_Type then
+ return;
+ end if;
+
+ E := Entity (E_Id);
+ D := Declaration_Node (E);
+ K := Nkind (D);
+
+ if Is_Type (E) then
+ if Rep_Item_Too_Early (E, N)
+ or else
+ Rep_Item_Too_Late (E, N)
+ then
+ return;
+ else
+ Check_First_Subtype (Arg1);
+ end if;
+
+ elsif K = N_Object_Declaration
+ or else (K = N_Component_Declaration
+ and then Original_Record_Component (E) = E)
+ then
+ if Rep_Item_Too_Late (E, N) then
+ return;
+ end if;
+
+ else
+ Error_Pragma_Arg
+ ("inappropriate entity for pragma%", Arg1);
+ end if;
+
+ Independence_Checks.Append ((N, E));
+ end Independent;
+
+ ----------------------------
+ -- Independent_Components --
+ ----------------------------
+
+ -- pragma Atomic_Components (array_LOCAL_NAME);
+
+ -- This processing is shared by Volatile_Components
+
+ when Pragma_Independent_Components => Independent_Components : declare
+ E_Id : Node_Id;
+ E : Entity_Id;
+ D : Node_Id;
+ K : Node_Kind;
+
+ begin
+ Check_Ada_83_Warning;
+ Ada_2012_Pragma;
+ Check_No_Identifiers;
+ Check_Arg_Count (1);
+ Check_Arg_Is_Local_Name (Arg1);
+ E_Id := Expression (Arg1);
+
+ if Etype (E_Id) = Any_Type then
+ return;
+ end if;
+
+ E := Entity (E_Id);
- -- CLASS_NAME ::= ubs | ubsb | uba | s | sb | a | nca
+ if Rep_Item_Too_Early (E, N)
+ or else
+ Rep_Item_Too_Late (E, N)
+ then
+ return;
+ end if;
- when Pragma_Import_Valued_Procedure =>
- Import_Valued_Procedure : declare
- Args : Args_List (1 .. 5);
- Names : constant Name_List (1 .. 5) := (
- Name_Internal,
- Name_External,
- Name_Parameter_Types,
- Name_Mechanism,
- Name_First_Optional_Parameter);
+ D := Declaration_Node (E);
+ K := Nkind (D);
- Internal : Node_Id renames Args (1);
- External : Node_Id renames Args (2);
- Parameter_Types : Node_Id renames Args (3);
- Mechanism : Node_Id renames Args (4);
- First_Optional_Parameter : Node_Id renames Args (5);
+ if (K = N_Full_Type_Declaration
+ and then (Is_Array_Type (E) or else Is_Record_Type (E)))
+ or else
+ ((Ekind (E) = E_Constant or else Ekind (E) = E_Variable)
+ and then Nkind (D) = N_Object_Declaration
+ and then Nkind (Object_Definition (D)) =
+ N_Constrained_Array_Definition)
+ then
+ Independence_Checks.Append ((N, E));
- begin
- GNAT_Pragma;
- Gather_Associations (Names, Args);
- Process_Extended_Import_Export_Subprogram_Pragma (
- Arg_Internal => Internal,
- Arg_External => External,
- Arg_Parameter_Types => Parameter_Types,
- Arg_Mechanism => Mechanism,
- Arg_First_Optional_Parameter => First_Optional_Parameter);
- end Import_Valued_Procedure;
+ else
+ Error_Pragma_Arg ("inappropriate entity for pragma%", Arg1);
+ end if;
+ end Independent_Components;
------------------------
-- Initialize_Scalars --
Check_Valid_Configuration_Pragma;
Check_Restriction (No_Initialize_Scalars, N);
- if not Restriction_Active (No_Initialize_Scalars) then
+ -- Initialize_Scalars creates false positives in CodePeer,
+ -- so ignore this pragma in this mode.
+
+ if not Restriction_Active (No_Initialize_Scalars)
+ and then not CodePeer_Mode
+ then
Init_Or_Norm_Scalars := True;
Initialize_Scalars := True;
end if;
-- pragma Inline_Always ( NAME {, NAME} );
when Pragma_Inline_Always =>
- Process_Inline (True);
+ GNAT_Pragma;
+
+ -- Pragma always active unless in CodePeer mode, since this causes
+ -- walk order issues.
+
+ if not CodePeer_Mode then
+ Process_Inline (True);
+ end if;
--------------------
-- Inline_Generic --
-- pragma Inline_Generic (NAME {, NAME});
when Pragma_Inline_Generic =>
+ GNAT_Pragma;
Process_Generic_List;
----------------------
Check_At_Most_N_Arguments (4);
Process_Import_Or_Interface;
+ -- In Ada 2005, the permission to use Interface (a reserved word)
+ -- as a pragma name is considered an obsolescent feature.
+
+ if Ada_Version >= Ada_2005 then
+ Check_Restriction
+ (No_Obsolescent_Features, Pragma_Identifier (N));
+ end if;
+
--------------------
-- Interface_Name --
--------------------
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
- and then Nkind (P) /= N_Protected_Definition
- then
+ if not Nkind_In (P, N_Task_Definition, N_Protected_Definition) then
Pragma_Misplaced;
return;
-- INTERRUPT_ID => IDENTIFIER | static_integer_EXPRESSION
-- INTERRUPT_STATE => System | Runtime | User
- -- Note: if the interrupt id is given as an identifier, then
- -- it must be one of the identifiers in Ada.Interrupts.Names.
- -- Otherwise it is given as a static integer expression which
- -- must be in the range of Ada.Interrupts.Interrupt_ID.
+ -- Note: if the interrupt id is given as an identifier, then it must
+ -- be one of the identifiers in Ada.Interrupts.Names. Otherwise it is
+ -- given as a static integer expression which must be in the range of
+ -- Ada.Interrupts.Interrupt_ID.
when Pragma_Interrupt_State => Interrupt_State : declare
Next_Entity (Int_Ent);
end loop;
- -- First argument is not an identifier, so it must be a
- -- static expression of type Ada.Interrupts.Interrupt_ID.
+ -- First argument is not an identifier, so it must be a static
+ -- expression of type Ada.Interrupts.Interrupt_ID.
else
Check_Arg_Is_Static_Expression (Arg1, Any_Integer);
and then
(Is_Value_Type (Etype (Def_Id))
or else
+ (Ekind (Etype (Def_Id)) = E_Access_Subprogram_Type
+ and then
+ Atree.Convention (Etype (Def_Id)) = Convention)
+ or else
(Ekind (Etype (Def_Id)) in Access_Kind
and then
(Atree.Convention
pragma Assert (Convention = Convention_CIL);
Error_Pragma_Arg
("pragma% requires function returning a " &
- "'CIL access type", Arg1);
+ "'C'I'L access type", Arg1);
end if;
end if;
Typ := Underlying_Type (Entity (Arg));
- -- For now we simply check some of the semantic constraints
- -- on the type. This currently leaves out some restrictions
- -- on interface types, namely that the parent type must be
- -- java.lang.Object.Typ and that all primitives of the type
- -- should be declared abstract. ???
+ -- For now simply check some of the semantic constraints on the
+ -- type. This currently leaves out some restrictions on interface
+ -- types, namely that the parent type must be 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_Type (Typ) then
Error_Pragma_Arg ("pragma% requires an abstract "
while Present (Arg) loop
Check_Arg_Is_Static_Expression (Arg, Standard_String);
- -- Store argument, converting sequences of spaces
- -- to a single null character (this is one of the
- -- differences in processing between Link_With
- -- and Linker_Options).
+ -- Store argument, converting sequences of spaces to a
+ -- single null character (this is one of the differences
+ -- in processing between Link_With and Linker_Options).
Arg_Store : declare
C : constant Char_Code := Get_Char_Code (' ');
Skip_Spaces; -- skip leading spaces
-- Loop through characters, changing any embedded
- -- sequence of spaces to a single null character
- -- (this is how Link_With/Linker_Options differ)
+ -- sequence of spaces to a single null character (this
+ -- is how Link_With/Linker_Options differ)
while F <= L loop
if Get_String_Char (S, F) = C then
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;
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 List (On | Off)
- -- There is nothing to do here, since we did all the processing
- -- for this pragma in Par.Prag (so that it works properly even in
- -- syntax only mode)
+ -- There is nothing to do here, since we did all the processing for
+ -- this pragma in Par.Prag (so that it works properly even in syntax
+ -- only mode).
when Pragma_List =>
null;
Error_Msg_Sloc := Locking_Policy_Sloc;
Error_Pragma ("locking policy incompatible with policy#");
- -- Set new policy, but always preserve System_Location since
- -- we like the error message with the run time name.
+ -- Set new policy, but always preserve System_Location since we
+ -- like the error message with the run time name.
else
Locking_Policy := LP;
-- pragma Machine_Attribute (
-- [Entity =>] LOCAL_NAME,
-- [Attribute_Name =>] static_string_EXPRESSION
- -- [, [Info =>] static_string_EXPRESSION] );
+ -- [, [Info =>] static_EXPRESSION] );
when Pragma_Machine_Attribute => Machine_Attribute : declare
Def_Id : Entity_Id;
if Arg_Count = 3 then
Check_Optional_Identifier (Arg3, Name_Info);
- Check_Arg_Is_Static_Expression (Arg3, Standard_String);
+ Check_Arg_Is_Static_Expression (Arg3);
else
Check_Arg_Count (2);
end if;
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;
-- it was misplaced.
when Pragma_No_Body =>
- Error_Pragma ("misplaced pragma %");
+ GNAT_Pragma;
+ Pragma_Misplaced;
---------------
-- No_Return --
Arg : Node_Id;
begin
- GNAT_Pragma;
+ Ada_2005_Pragma;
Check_At_Least_N_Arguments (1);
-- Loop through arguments of pragma
while Present (E)
and then Scope (E) = Current_Scope
loop
- if Ekind (E) = E_Procedure
- or else Ekind (E) = E_Generic_Procedure
- then
+ if Ekind_In (E, E_Procedure, E_Generic_Procedure) then
Set_No_Return (E);
-- Set flag on any alias as well
end loop;
end No_Return;
+ -----------------
+ -- 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;
+
+ -- 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 --
------------------------
-- pragma No_Strict_Aliasing [([Entity =>] type_LOCAL_NAME)];
- when Pragma_No_Strict_Aliasing => No_Strict_Alias : declare
+ 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 creates false positives in CodePeer, so
+ -- ignore this pragma in this mode.
+
+ if not CodePeer_Mode then
+ Normalize_Scalars := True;
+ Init_Or_Norm_Scalars := True;
+ end if;
-----------------
-- Obsolescent --
-----------------
- -- pragma Obsolescent [(
- -- [Entity => NAME,]
- -- [(static_string_EXPRESSION [, Ada_05])];
+ -- pragma Obsolescent;
+
+ -- pragma Obsolescent (
+ -- [Message =>] static_string_EXPRESSION
+ -- [,[Version =>] Ada_05]]);
+
+ -- pragma Obsolescent (
+ -- [Entity =>] NAME
+ -- [,[Message =>] static_string_EXPRESSION
+ -- [,[Version =>] Ada_05]] );
when Pragma_Obsolescent => Obsolescent : declare
Ename : Node_Id;
if Present (Ename) then
- -- If entity name matches, we are fine
+ -- If entity name matches, we are fine. Save entity in
+ -- pragma argument, for ASIS use.
if Chars (Ename) = Chars (Ent) then
- null;
+ 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.
"enumeration literal");
elsif Chars (Ent) = Chars (Ename) then
+ Set_Entity (Ename, Ent);
+ Generate_Reference (Ent, Ename);
exit;
else
end if;
end loop;
- Set_Obsolescent_Warning (Ent, Expression (Arg1));
+ Obsolescent_Warnings.Append
+ ((Ent => Ent, Msg => Strval (Expression (Arg1))));
-- Check for Ada_05 parameter
-- See if first argument specifies an entity name
if Arg_Count >= 1
- and then Chars (Arg1) = Name_Entity
+ and then
+ (Chars (Arg1) = Name_Entity
+ or else
+ Nkind_In (Get_Pragma_Arg (Arg1), N_Character_Literal,
+ N_Identifier,
+ N_Operator_Symbol))
then
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;
Ename := Empty;
end if;
- Check_No_Identifiers;
+ if Arg_Count >= 1 then
+ Check_Optional_Identifier (Arg1, Name_Message);
+
+ if Arg_Count = 2 then
+ Check_Optional_Identifier (Arg2, Name_Version);
+ end if;
+ end if;
-- Get immediately preceding declaration
declare
Ent : constant Entity_Id := Find_Lib_Unit_Name;
begin
- if Ekind (Ent) = E_Package
- or else Ekind (Ent) = E_Generic_Package
- then
+ if Is_Package_Or_Generic_Package (Ent) then
Set_Obsolescent (Ent);
return;
end if;
-- Cases where we must follow a declaration
else
- if Nkind (Decl) not in N_Declaration
+ 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
+ and then Nkind (Decl) not in N_Renaming_Declaration
then
Error_Pragma
- ("pragma% misplaced, " &
- "must immediately follow a declaration");
+ ("pragma% misplaced, "
+ & "must immediately follow a declaration");
else
Set_Obsolescent (Defining_Entity (Decl));
end if;
end Obsolescent;
- -----------------
- -- No_Run_Time --
- -----------------
+ --------------
+ -- Optimize --
+ --------------
- -- pragma No_Run_Time
+ -- pragma Optimize (Time | Space | Off);
- -- Note: this pragma is retained for backwards compatibiltiy.
- -- See body of Rtsfind for full details on its handling.
+ -- The actual check for optimize is done in Gigi. Note that this
+ -- pragma does not actually change the optimization setting, it
+ -- simply checks that it is consistent with the pragma.
- when Pragma_No_Run_Time =>
+ when Pragma_Optimize =>
+ Check_No_Identifiers;
+ Check_Arg_Count (1);
+ Check_Arg_Is_One_Of (Arg1, Name_Time, Name_Space, Name_Off);
+
+ ------------------------
+ -- Optimize_Alignment --
+ ------------------------
+
+ -- pragma Optimize_Alignment (Time | Space | Off);
+
+ when Pragma_Optimize_Alignment => Optimize_Alignment : begin
GNAT_Pragma;
+ Check_No_Identifiers;
+ Check_Arg_Count (1);
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
+ 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;
- if Ttypes.System_Word_Size = 32 then
- Duration_32_Bits_On_Target := True;
- end if;
+ -- 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.
- -- Set appropriate restrictions
+ Optimize_Alignment_Local := True;
+ end Optimize_Alignment;
- Set_Restriction (No_Finalization, N);
- Set_Restriction (No_Exception_Handlers, N);
- Set_Restriction (Max_Tasks, N, 0);
- Set_Restriction (No_Tasking, N);
+ -------------
+ -- Ordered --
+ -------------
- -----------------------
- -- Normalize_Scalars --
- -----------------------
+ -- pragma Ordered (first_enumeration_subtype_LOCAL_NAME);
- -- pragma Normalize_Scalars;
+ when Pragma_Ordered => Ordered : declare
+ Assoc : constant Node_Id := Arg1;
+ Type_Id : Node_Id;
+ Typ : Entity_Id;
- when Pragma_Normalize_Scalars =>
- Check_Ada_83_Warning;
- Check_Arg_Count (0);
- Check_Valid_Configuration_Pragma;
- Normalize_Scalars := True;
- Init_Or_Norm_Scalars := True;
+ begin
+ GNAT_Pragma;
+ Check_No_Identifiers;
+ Check_Arg_Count (1);
+ Check_Arg_Is_Local_Name (Arg1);
- --------------
- -- Optimize --
- --------------
+ Type_Id := Expression (Assoc);
+ Find_Type (Type_Id);
+ Typ := Entity (Type_Id);
- -- pragma Optimize (Time | Space);
+ if Typ = Any_Type then
+ return;
+ else
+ Typ := Underlying_Type (Typ);
+ end if;
- -- The actual check for optimize is done in Gigi. Note that this
- -- pragma does not actually change the optimization setting, it
- -- simply checks that it is consistent with the pragma.
+ if not Is_Enumeration_Type (Typ) then
+ Error_Pragma ("pragma% must specify enumeration type");
+ end if;
- when Pragma_Optimize =>
- Check_No_Identifiers;
- Check_Arg_Count (1);
- Check_Arg_Is_One_Of (Arg1, Name_Time, Name_Space, Name_Off);
+ Check_First_Subtype (Arg1);
+ Set_Has_Pragma_Ordered (Base_Type (Typ));
+ end Ordered;
----------
-- Pack --
Assoc : constant Node_Id := Arg1;
Type_Id : Node_Id;
Typ : Entity_Id;
+ Ctyp : Entity_Id;
+ Ignore : Boolean := False;
begin
Check_No_Identifiers;
-- Array type
elsif Is_Array_Type (Typ) then
+ Ctyp := Component_Type (Typ);
- -- Pack not allowed for aliased or atomic components
-
- if Has_Aliased_Components (Base_Type (Typ)) then
- Error_Pragma
- ("pragma% ignored, cannot pack aliased components?");
+ -- Ignore pack that does nothing
- elsif Has_Atomic_Components (Typ)
- or else Is_Atomic (Component_Type (Typ))
+ if Known_Static_Esize (Ctyp)
+ and then Known_Static_RM_Size (Ctyp)
+ and then Esize (Ctyp) = RM_Size (Ctyp)
+ and then Addressable (Esize (Ctyp))
then
- Error_Pragma
- ("?pragma% ignored, cannot pack atomic components");
+ Ignore := True;
end if;
- -- 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.
+ -- Process OK pragma Pack. Note that if there is a separate
+ -- component clause present, the Pack will be cancelled. This
+ -- processing is in Freeze.
- 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
+ if not Rep_Item_Too_Late (Typ, N) then
+
+ -- In the context of static code analysis, we do not need
+ -- complex front-end expansions related to pragma Pack,
+ -- so disable handling of pragma Pack in this case.
+
+ if CodePeer_Mode then
null;
- else
- Error_Pragma
- ("?pragma% ignored, explicit component size given");
- end if;
- -- If no prior array component size given, Pack is effective
+ -- For normal non-VM target, do the packing
- 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");
+ elsif VM_Target = No_VM then
+ if not Ignore then
+ Set_Is_Packed (Base_Type (Typ));
+ Set_Has_Non_Standard_Rep (Base_Type (Typ));
end if;
- Set_Has_Pragma_Pack (Base_Type (Typ));
- Set_Has_Non_Standard_Rep (Base_Type (Typ));
+ Set_Has_Pragma_Pack (Base_Type (Typ));
+
+ -- If we ignore the pack for VM_Targets, then warn about
+ -- this, except suppress the warning in GNAT mode.
+
+ elsif not GNAT_Mode then
+ Error_Pragma
+ ("?pragma% ignored in this configuration");
end if;
end if;
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));
+ Set_Is_Packed (Base_Type (Typ));
+ Set_Has_Pragma_Pack (Base_Type (Typ));
+ Set_Has_Non_Standard_Rep (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;
end Pack;
-- pragma Page;
- -- There is nothing to do here, since we did all the processing
- -- for this pragma in Par.Prag (so that it works properly even in
- -- syntax only mode)
+ -- There is nothing to do here, since we did all the processing for
+ -- this pragma in Par.Prag (so that it works properly even in syntax
+ -- only mode).
when Pragma_Page =>
null;
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;
-
- -------------
- -- Polling --
- -------------
-
- -- pragma Polling (ON | OFF);
-
- when Pragma_Polling =>
- GNAT_Pragma;
- Check_Arg_Count (1);
- Check_No_Identifiers;
- Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off);
- Polling_Required := (Chars (Expression (Arg1)) = Name_On);
+ then
+ Error_Pragma ("?duplicate pragma%!");
+ else
+ Set_Has_Pragma_Preelab_Init (Ent);
+ end if;
+ end Preelab_Init;
--------------------
-- Persistent_BSS --
end if;
end Persistent_BSS;
+ -------------
+ -- Polling --
+ -------------
+
+ -- pragma Polling (ON | OFF);
+
+ when Pragma_Polling =>
+ GNAT_Pragma;
+ Check_Arg_Count (1);
+ Check_No_Identifiers;
+ Check_Arg_Is_One_Of (Arg1, Name_On, Name_Off);
+ Polling_Required := (Chars (Expression (Arg1)) = Name_On);
+
+ -------------------
+ -- Postcondition --
+ -------------------
+
+ -- pragma Postcondition ([Check =>] Boolean_Expression
+ -- [,[Message =>] String_Expression]);
+
+ when Pragma_Postcondition => Postcondition : declare
+ In_Body : Boolean;
+ pragma Warnings (Off, In_Body);
+
+ begin
+ GNAT_Pragma;
+ Check_At_Least_N_Arguments (1);
+ Check_At_Most_N_Arguments (2);
+ Check_Optional_Identifier (Arg1, Name_Check);
+
+ -- All we need to do here is call the common check procedure,
+ -- the remainder of the processing is found in Sem_Ch6/Sem_Ch7.
+
+ Check_Precondition_Postcondition (In_Body);
+ end Postcondition;
+
+ ------------------
+ -- Precondition --
+ ------------------
+
+ -- pragma Precondition ([Check =>] Boolean_Expression
+ -- [,[Message =>] String_Expression]);
+
+ when Pragma_Precondition => Precondition : declare
+ In_Body : Boolean;
+
+ begin
+ GNAT_Pragma;
+ Check_At_Least_N_Arguments (1);
+ Check_At_Most_N_Arguments (2);
+ Check_Optional_Identifier (Arg1, Name_Check);
+
+ Check_Precondition_Postcondition (In_Body);
+
+ -- If in spec, nothing more 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, and will also
+ -- analyze the condition itself in the proper context.
+
+ 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;
+
+ 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;
+
+ Analyze (N);
+ end if;
+ end Precondition;
+
------------------
-- Preelaborate --
------------------
-- 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
+ -- set to Ada_12 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
-- Task or Protected, must be of type Integer
- elsif Nkind (P) = N_Protected_Definition
- or else
- Nkind (P) = N_Task_Definition
- then
+ elsif Nkind_In (P, N_Protected_Definition, N_Task_Definition) then
Arg := Expression (Arg1);
-- The expression must be analyzed in the special manner
-- 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);
else
Set_Has_Priority_Pragma (P, True);
- if Nkind (P) = N_Protected_Definition
- or else
- Nkind (P) = N_Task_Definition
- then
+ if Nkind_In (P, N_Protected_Definition, N_Task_Definition) then
Record_Rep_Item (Defining_Identifier (Parent (P)), N);
-- exp_ch9 should use this ???
end if;
-- pragma Profile (profile_IDENTIFIER);
- -- profile_IDENTIFIER => Protected | Ravenscar
+ -- profile_IDENTIFIER => Restricted | Ravenscar
when Pragma_Profile =>
Ada_2005_Pragma;
if Chars (Argx) = Name_Ravenscar then
Set_Ravenscar_Profile (N);
elsif Chars (Argx) = Name_Restricted then
- Set_Profile_Restrictions (Restricted, N, Warn => False);
+ Set_Profile_Restrictions
+ (Restricted, N, Warn => Treat_Restrictions_As_Warnings);
else
Error_Pragma_Arg ("& is not a valid profile", Argx);
end if;
-- pragma Profile_Warnings (profile_IDENTIFIER);
- -- profile_IDENTIFIER => Protected | Ravenscar
+ -- profile_IDENTIFIER => Restricted | Ravenscar
when Pragma_Profile_Warnings =>
GNAT_Pragma;
X : constant Node_Id := Original_Node (Arg);
begin
- if Nkind (X) /= N_String_Literal
- and then
- Nkind (X) /= N_Identifier
- then
+ if not Nkind_In (X, N_String_Literal, N_Identifier) then
Error_Pragma_Arg
("inappropriate argument for pragma %", Arg);
end if;
Def_Id := Entity (Internal);
- if Ekind (Def_Id) /= E_Constant
- and then Ekind (Def_Id) /= E_Variable
- then
+ if not Ekind_In (Def_Id, E_Constant, E_Variable) then
Error_Pragma_Arg
("pragma% must designate an object", Internal);
end if;
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
+ -- set to Ada_12 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
loop
Def_Id := Get_Base_Subprogram (E);
- if Ekind (Def_Id) /= E_Function
- and then Ekind (Def_Id) /= E_Generic_Function
- and then Ekind (Def_Id) /= E_Operator
+ if not Ekind_In (Def_Id, E_Function,
+ E_Generic_Function,
+ E_Operator)
then
Error_Pragma_Arg
("pragma% requires a function name", Arg1);
if not Effective
and then Warn_On_Redundant_Constructs
then
- Error_Msg_NE ("pragma Pure_Function on& is redundant?",
- N, Entity (E_Id));
+ Error_Msg_NE
+ ("pragma Pure_Function on& is redundant?",
+ N, Entity (E_Id));
end if;
end if;
end Pure_Function;
Error_Msg_Sloc := Queuing_Policy_Sloc;
Error_Pragma ("queuing policy incompatible with policy#");
- -- Set new policy, but always preserve System_Location since
- -- we like the error message with the run time name.
+ -- Set new policy, but always preserve System_Location since we
+ -- like the error message with the run time name.
else
Queuing_Policy := QP;
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 --
---------------------------
Cunit_Node := Cunit (Current_Sem_Unit);
Cunit_Ent := Cunit_Entity (Current_Sem_Unit);
- if Nkind (Unit (Cunit_Node)) /= N_Package_Declaration
- and then
- Nkind (Unit (Cunit_Node)) /= N_Generic_Package_Declaration
+ if not Nkind_In (Unit (Cunit_Node), N_Package_Declaration,
+ N_Generic_Package_Declaration)
then
- Error_Pragma (
- "pragma% can only apply to a package declaration");
+ Error_Pragma
+ ("pragma% can only apply to a package declaration");
end if;
Set_Is_Remote_Types (Cunit_Ent);
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);
+ Error_Msg_N ("pragma Ravenscar is an obsolescent feature?", N);
+ Error_Msg_N ("|use pragma Profile (Ravenscar) instead", N);
end if;
-------------------------
GNAT_Pragma;
Check_Arg_Count (0);
Check_Valid_Configuration_Pragma;
- Set_Profile_Restrictions (Restricted, N, Warn => False);
+ 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);
+ Error_Msg_N ("|use pragma Profile (Restricted) instead", N);
end if;
------------------
-- | restriction_parameter_IDENTIFIER => EXPRESSION
when Pragma_Restrictions =>
- Process_Restrictions_Or_Restriction_Warnings (Warn => False);
+ Process_Restrictions_Or_Restriction_Warnings
+ (Warn => Treat_Restrictions_As_Warnings);
--------------------------
-- Restriction_Warnings --
-- | restriction_parameter_IDENTIFIER => EXPRESSION
when Pragma_Restriction_Warnings =>
+ GNAT_Pragma;
Process_Restrictions_Or_Restriction_Warnings (Warn => True);
----------------
when Pragma_Reviewable =>
Check_Ada_83_Warning;
Check_Arg_Count (0);
+
+ -- Call dummy debugging function rv. This is done to assist 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.
+
rv;
+ --------------------------
+ -- Short_Circuit_And_Or --
+ --------------------------
+
+ when Pragma_Short_Circuit_And_Or =>
+ GNAT_Pragma;
+ Check_Arg_Count (0);
+ Check_Valid_Configuration_Pragma;
+ Short_Circuit_And_Or := True;
+
-------------------
-- Share_Generic --
-------------------
Cunit_Node := Cunit (Current_Sem_Unit);
Cunit_Ent := Cunit_Entity (Current_Sem_Unit);
- if Nkind (Unit (Cunit_Node)) /= N_Package_Declaration
- and then
- Nkind (Unit (Cunit_Node)) /= N_Generic_Package_Declaration
+ if not Nkind_In (Unit (Cunit_Node), N_Package_Declaration,
+ N_Generic_Package_Declaration)
then
- Error_Pragma (
- "pragma% can only apply to a package declaration");
+ Error_Pragma
+ ("pragma% can only apply to a package declaration");
end if;
Set_Is_Shared_Passive (Cunit_Ent);
end Shared_Passive;
+ -----------------------
+ -- Short_Descriptors --
+ -----------------------
+
+ -- pragma Short_Descriptors;
+
+ when Pragma_Short_Descriptors =>
+ GNAT_Pragma;
+ Check_Arg_Count (0);
+ Check_Valid_Configuration_Pragma;
+ Short_Descriptors := True;
+
----------------------
-- Source_File_Name --
----------------------
-- CASING_SPEC ::= Uppercase | Lowercase | Mixedcase
-- Pragma Source_File_Name_Project (SFNP) is equivalent to pragma
- -- Source_File_Name (SFN), however their usage is exclusive:
- -- SFN can only be used when no project file is used, while
- -- SFNP can only be used when a project file is used.
+ -- Source_File_Name (SFN), however their usage is exclusive: SFN can
+ -- only be used when no project file is used, while SFNP can only be
+ -- used when a project file is used.
- -- No processing here. Processing was completed during parsing,
- -- since we need to have file names set as early as possible.
- -- Units are loaded well before semantic processing starts.
+ -- No processing here. Processing was completed during parsing, since
+ -- we need to have file names set as early as possible. Units are
+ -- loaded well before semantic processing starts.
- -- The only processing we defer to this point is the check
- -- for correct placement.
+ -- The only processing we defer to this point is the check for
+ -- correct placement.
when Pragma_Source_File_Name =>
GNAT_Pragma;
-- See Source_File_Name for syntax
- -- No processing here. Processing was completed during parsing,
- -- since we need to have file names set as early as possible.
- -- Units are loaded well before semantic processing starts.
+ -- No processing here. Processing was completed during parsing, since
+ -- we need to have file names set as early as possible. Units are
+ -- loaded well before semantic processing starts.
- -- The only processing we defer to this point is the check
- -- for correct placement.
+ -- The only processing we defer to this point is the check for
+ -- correct placement.
when Pragma_Source_File_Name_Project =>
GNAT_Pragma;
Check_Valid_Configuration_Pragma;
- -- Check that a pragma Source_File_Name_Project is used only
- -- in a configuration pragmas file.
+ -- Check that a pragma Source_File_Name_Project is used only in a
+ -- configuration pragmas file.
- -- Pragmas Source_File_Name_Project should only be generated
- -- by the Project Manager in configuration pragmas files.
+ -- Pragmas Source_File_Name_Project should only be generated by
+ -- the Project Manager in configuration pragmas files.
-- This is really an ugly test. It seems to depend on some
- -- accidental and undocumented property. At the very least
- -- it needs to be documented, but it would be better to have
- -- a clean way of testing if we are in a configuration file???
+ -- accidental and undocumented property. At the very least it
+ -- needs to be documented, but it would be better to have a
+ -- clean way of testing if we are in a configuration file???
if Present (Parent (N)) then
Error_Pragma
-- pragma Source_Reference (INTEGER_LITERAL [, STRING_LITERAL]);
- -- Nothing to do, all processing completed in Par.Prag, since we
- -- need the information for possible parser messages that are output
+ -- Nothing to do, all processing completed in Par.Prag, since we need
+ -- the information for possible parser messages that are output.
when Pragma_Source_Reference =>
GNAT_Pragma;
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);
when Pragma_Stream_Convert => Stream_Convert : declare
procedure Check_OK_Stream_Convert_Function (Arg : Node_Id);
- -- Check that the given argument is the name of a local
- -- function of one argument that is not overloaded earlier
- -- in the current local scope. A check is also made that the
- -- argument is a function with one parameter.
+ -- Check that the given argument is the name of a local function
+ -- of one argument that is not overloaded earlier in the current
+ -- local scope. A check is also made that the argument is a
+ -- function with one parameter.
--------------------------------------
-- Check_OK_Stream_Convert_Function --
end if;
end Check_OK_Stream_Convert_Function;
- -- Start of procecessing for Stream_Convert
+ -- Start of processing for Stream_Convert
begin
GNAT_Pragma;
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
- Rep_Item_Too_Late (Typ, N)
+ Etype (Read) = Any_Type
+ or else
+ 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);
-- pragma Style_Checks (On | Off | ALL_CHECKS | STRING_LITERAL);
- -- This is processed by the parser since some of the style
- -- checks take place during source scanning and parsing. This
- -- means that we don't need to issue error messages here.
+ -- This is processed by the parser since some of the style checks
+ -- take place during source scanning and parsing. This means that
+ -- we don't need to issue error messages here.
when Pragma_Style_Checks => Style_Checks : declare
A : constant Node_Id := Expression (Arg1);
elsif Nkind (A) = N_Identifier then
if Chars (A) = Name_All_Checks then
- Set_Default_Style_Check_Options;
+ if GNAT_Mode then
+ Set_GNAT_Style_Check_Options;
+ else
+ Set_Default_Style_Check_Options;
+ end if;
elsif Chars (A) = Name_On then
Style_Check := True;
GNAT_Pragma;
Check_Arg_Count (1);
Check_Optional_Identifier (Arg1, Name_Subtitle);
- Check_Arg_Is_String_Literal (Arg1);
+ Check_Arg_Is_Static_Expression (Arg1, Standard_String);
+ Store_Note (N);
--------------
-- Suppress --
-- pragma Suppress_All;
- -- The only check made here is that the pragma appears in the
- -- proper place, i.e. following a compilation unit. If indeed
- -- it appears in this context, then the parser has already
- -- inserted an equivalent pragma Suppress (All_Checks) to get
- -- the required effect.
+ -- The only check made here is that the pragma appears in the proper
+ -- place, i.e. following a compilation unit. If indeed it appears in
+ -- this context, then the parser has already inserted an equivalent
+ -- pragma Suppress (All_Checks) to get the required effect.
when Pragma_Suppress_All =>
GNAT_Pragma;
-- pragma System_Name (DIRECT_NAME);
- -- Syntax check: one argument, which must be the identifier GNAT
- -- or the identifier GCC, no other identifiers are acceptable.
+ -- Syntax check: one argument, which must be the identifier GNAT 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);
Error_Pragma
("task dispatching policy incompatible with policy#");
- -- Set new policy, but always preserve System_Location since
- -- we like the error message with the run time name.
+ -- Set new policy, but always preserve System_Location since we
+ -- like the error message with the run time name.
else
Task_Dispatching_Policy := DP;
-- pragma Task_Name (string_EXPRESSION);
when Pragma_Task_Name => Task_Name : declare
- -- pragma Priority (EXPRESSION);
-
P : constant Node_Id := Parent (N);
Arg : Node_Id;
Check_Arg_Count (1);
Arg := Expression (Arg1);
- Analyze_And_Resolve (Arg, Standard_String);
+
+ -- The expression is used in the call to Create_Task, and must be
+ -- expanded there, not in the context of the current spec. It must
+ -- however be analyzed to capture global references, in case it
+ -- appears in a generic context.
+
+ Preanalyze_And_Resolve (Arg, Standard_String);
if Nkind (P) /= N_Task_Definition then
Pragma_Misplaced;
end if;
end Task_Storage;
+ --------------------------
+ -- Thread_Local_Storage --
+ --------------------------
+
+ -- pragma Thread_Local_Storage ([Entity =>] LOCAL_NAME);
+
+ when Pragma_Thread_Local_Storage => Thread_Local_Storage : declare
+ Id : Node_Id;
+ E : Entity_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_Arg_Count (1);
+ Check_Optional_Identifier (Arg1, Name_Entity);
+ Check_Arg_Is_Library_Level_Local_Name (Arg1);
+
+ Id := Expression (Arg1);
+ Analyze (Id);
+
+ if not Is_Entity_Name (Id)
+ or else Ekind (Entity (Id)) /= E_Variable
+ then
+ Error_Pragma_Arg ("local variable name required", Arg1);
+ end if;
+
+ E := Entity (Id);
+
+ if Rep_Item_Too_Early (E, N)
+ or else Rep_Item_Too_Late (E, N)
+ then
+ raise Pragma_Exit;
+ end if;
+
+ Set_Has_Pragma_Thread_Local_Storage (E);
+ Set_Has_Gigi_Rep_Item (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;
begin
GNAT_Pragma;
Gather_Associations (Names, Args);
+ Store_Note (N);
for J in 1 .. 2 loop
if Present (Args (J)) then
- Check_Arg_Is_String_Literal (Args (J));
+ Check_Arg_Is_Static_Expression (Args (J), Standard_String);
end if;
end loop;
end Title;
Variant : Node_Id;
begin
- GNAT_Pragma;
+ Ada_2005_Pragma;
Check_No_Identifiers;
Check_Arg_Count (1);
Check_Arg_Is_Local_Name (Arg1);
Comp := First (Component_Items (Clist));
while Present (Comp) loop
- Check_Component (Comp);
+ Check_Component (Comp, Typ);
Next (Comp);
end loop;
Variant := First (Variants (Vpart));
while Present (Variant) loop
- Check_Variant (Variant);
+ Check_Variant (Variant, Typ);
Next (Variant);
end loop;
end if;
-- pragma Unimplemented_Unit;
- -- Note: this only gives an error if we are generating code,
- -- or if we are in a generic library unit (where the pragma
- -- appears in the body, not in the spec).
+ -- Note: this only gives an error if we are generating code, or if
+ -- we are in a generic library unit (where the pragma appears in the
+ -- body, not in the spec).
when Pragma_Unimplemented_Unit => Unimplemented_Unit : declare
Cunitent : constant Entity_Id :=
GNAT_Pragma;
-- If this is a configuration pragma, then set the universal
- -- addressing option, otherwise confirm that the pragma
- -- satisfies the requirements of library unit pragma placement
- -- and leave it to the GNAAMP back end to detect the pragma
- -- (avoids transitive setting of the option due to withed units).
+ -- addressing option, otherwise confirm that the pragma satisfies
+ -- the requirements of library unit pragma placement and leave it
+ -- to the GNAAMP back end to detect the pragma (avoids transitive
+ -- setting of the option due to withed units).
if Is_Configuration_Pragma then
Universal_Addressing_On_AAMP := True;
Error_Pragma ("?pragma% ignored (applies only to AAMP)");
end if;
+ ----------------
+ -- Unmodified --
+ ----------------
+
+ -- pragma Unmodified (local_Name {, local_Name});
+
+ when Pragma_Unmodified => Unmodified : declare
+ Arg_Node : Node_Id;
+ Arg_Expr : Node_Id;
+ Arg_Ent : Entity_Id;
+
+ begin
+ GNAT_Pragma;
+ Check_At_Least_N_Arguments (1);
+
+ -- Loop through arguments
+
+ 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 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 Unsuppress (IDENTIFIER [, [On =>] NAME]);
when Pragma_Unsuppress =>
- GNAT_Pragma;
+ Ada_2005_Pragma;
Process_Suppress_Unsuppress (False);
-------------------
Check_At_Least_N_Arguments (1);
Check_No_Identifiers;
+ -- If debug flag -gnatd.i is set, pragma is ignored
+
+ if Debug_Flag_Dot_I then
+ return;
+ end if;
+
+ -- Process various forms of the pragma
+
declare
Argx : constant Node_Id := Get_Pragma_Arg (Arg1);
elsif not Is_Static_String_Expression (Arg1) then
Error_Pragma_Arg
("argument of pragma% must be On/Off or " &
- "static string expression", Arg2);
+ "static string expression", Arg1);
-- One argument string expression case
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;
-- 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
raise Program_Error;
end case;
+ -- AI05-0144: detect dangerous order dependence. Disabled for now,
+ -- until AI is formally approved.
+
+ -- Check_Order_Dependence;
+
exception
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
- Chars (N) = Name_Priority_Specific_Dispatching;
+ Pragma_Name (N) = Name_Priority_Specific_Dispatching;
end Delay_Config_Pragma_Analyze;
-------------------------
and then
(Is_Generic_Instance (Result)
or else Nkind (Parent (Declaration_Node (Result))) =
- N_Subprogram_Renaming_Declaration)
+ N_Subprogram_Renaming_Declaration)
and then Present (Alias (Result))
loop
Result := Alias (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 --
-----------------------------
function Is_Config_Static_String (Arg : Node_Id) return Boolean is
function Add_Config_Static_String (Arg : Node_Id) return Boolean;
- -- This is an internal recursive function that is just like the
- -- outer function except that it adds the string to the name buffer
- -- rather than placing the string in the name buffer.
+ -- This is an internal recursive function that is just like the outer
+ -- function except that it adds the string to the name buffer rather
+ -- than placing the string in the name buffer.
------------------------------
-- Add_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.
+ -- whether a given pragma is significant.
- Sig_Flags : constant array (Pragma_Id) of Int :=
+ -- -1 indicates that references in any argument position are significant
+ -- 0 indicates that appearence in any argument is not significant
+ -- +n indicates that appearence as argument n is significant, but all
+ -- other arguments are not significant
+ -- 99 special processing required (e.g. for pragma Check)
+ 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_Ada_12 => -1,
+ Pragma_Ada_2012 => -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_Debug => -1,
Pragma_Debug_Policy => 0,
Pragma_Detect_Blocking => -1,
+ Pragma_Dimension => -1,
Pragma_Discard_Names => 0,
Pragma_Elaborate => -1,
Pragma_Elaborate_All => -1,
Pragma_Finalize_Storage_Only => 0,
Pragma_Float_Representation => 0,
Pragma_Ident => -1,
- Pragma_Implemented_By_Entry => -1,
+ Pragma_Implemented => -1,
Pragma_Implicit_Packing => 0,
Pragma_Import => +2,
Pragma_Import_Exception => 0,
Pragma_Import_Object => 0,
Pragma_Import_Procedure => 0,
Pragma_Import_Valued_Procedure => 0,
+ Pragma_Independent => 0,
+ Pragma_Independent_Components => 0,
Pragma_Initialize_Scalars => -1,
Pragma_Inline => 0,
Pragma_Inline_Always => 0,
Pragma_Normalize_Scalars => -1,
Pragma_Obsolescent => 0,
Pragma_Optimize => -1,
+ Pragma_Optimize_Alignment => -1,
+ Pragma_Ordered => 0,
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_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_Short_Circuit_And_Or => -1,
Pragma_Share_Generic => -1,
Pragma_Shared => -1,
Pragma_Shared_Passive => -1,
+ Pragma_Short_Descriptors => 0,
Pragma_Source_File_Name => -1,
Pragma_Source_File_Name_Project => -1,
Pragma_Source_Reference => -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,
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;
-- Is_Pragma_String_Literal --
------------------------------
- -- This function returns true if the corresponding pragma argument is
- -- a static string expression. These are the only cases in which string
- -- literals can appear as pragma arguments. We also allow a string
- -- literal as the first argument to pragma Assert (although it will
- -- of course always generate a type error).
+ -- This function returns true if the corresponding pragma argument is a
+ -- static string expression. These are the only cases in which string
+ -- literals can appear as pragma arguments. We also allow a string literal
+ -- as the first argument to pragma Assert (although it will of course
+ -- always generate a type error).
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;
procedure Process_Compilation_Unit_Pragmas (N : Node_Id) is
begin
- -- A special check for pragma Suppress_All. This is a strange DEC
- -- pragma, strange because it comes at the end of the unit. If we
- -- have a pragma Suppress_All in the Pragmas_After of the current
- -- unit, then we insert a pragma Suppress (All_Checks) at the start
- -- of the context clause to ensure the correct processing.
+ -- A special check for pragma Suppress_All, a very strange DEC pragma,
+ -- strange because it comes at the end of the unit. If we have a pragma
+ -- Suppress_All in the Pragmas_After of the current unit, then we insert
+ -- a pragma Suppress (All_Checks) at the start of the context clause to
+ -- ensure the correct processing.
declare
PA : constant List_Id := Pragmas_After (Aux_Decls_Node (N));
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,
Hex : constant array (0 .. 15) of Character := "0123456789abcdef";
procedure Encode;
- -- Stores encoded value of character code CC. The encoding we
- -- use an underscore followed by four lower case hex digits.
+ -- Stores encoded value of character code CC. The encoding we use an
+ -- underscore followed by four lower case hex digits.
------------
-- Encode --
-- Start of processing for Set_Encoded_Interface_Name
begin
- -- 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 or AAMP interface names.
+ -- 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 or
+ -- AAMP interface names.
if Len = 0
or else Get_String_Char (Str, 1) = Get_Char_Code ('*')
Set_Entity (Pref, Scop);
end if;
end Set_Unit_Name;
+
end Sem_Prag;
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