+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- S E M _ C H 6 --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.2 $
--- --
--- Copyright (C) 1992,1993,1994,1995,1996 Free Software Foundation, Inc. --
--- --
--- GNAT is free software; you can redistribute it and/or modify it under --
--- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
-with Types; use Types;
-package Sem_Ch6 is
-
- procedure Analyze_Abstract_Subprogram_Declaration (N : Node_Id);
- procedure Analyze_Function_Call (N : Node_Id);
- procedure Analyze_Operator_Symbol (N : Node_Id);
- procedure Analyze_Parameter_Association (N : Node_Id);
- procedure Analyze_Procedure_Call (N : Node_Id);
- procedure Analyze_Return_Statement (N : Node_Id);
- procedure Analyze_Subprogram_Declaration (N : Node_Id);
- procedure Analyze_Subprogram_Body (N : Node_Id);
-
- function Analyze_Spec (N : Node_Id) return Entity_Id;
- -- Analyze subprogram specification in both subprogram declarations
- -- and body declarations.
-
- procedure Check_Delayed_Subprogram (Designator : Entity_Id);
- -- Designator can be a E_Subrpgram_Type, E_Procedure or E_Function. If a
- -- type in its profile depends on a private type without a full
- -- declaration, indicate that the subprogram is delayed.
-
- procedure Check_Discriminant_Conformance
- (N : Node_Id;
- Prev : Entity_Id;
- Prev_Loc : Node_Id);
- -- Check that the discriminants of a full type N fully conform to
- -- the discriminants of the corresponding partial view Prev.
- -- Prev_Loc indicates the source location of the partial view,
- -- which may be different than Prev in the case of private types.
-
- procedure Check_Fully_Conformant
- (New_Id : Entity_Id;
- Old_Id : Entity_Id;
- Err_Loc : Node_Id := Empty);
- -- Check that two callable entitites (subprograms, entries, literals)
- -- are fully conformant, post error message if not (RM 6.3.1(17)) with
- -- the flag being placed on the Err_Loc node if it is specified, and
- -- on the appropriate component of the New_Id construct if not. Note:
- -- when checking spec/body conformance, New_Id must be the body entity
- -- and Old_Id is the spec entity (the code in the implementation relies
- -- on this ordering, and in any case, this makes sense, since if flags
- -- are to be placed on the construct, they clearly belong on the body.
-
- procedure Check_Mode_Conformant
- (New_Id : Entity_Id;
- Old_Id : Entity_Id;
- Err_Loc : Node_Id := Empty;
- Get_Inst : Boolean := False);
- -- Check that two callable entitites (subprograms, entries, literals)
- -- are mode conformant, post error message if not (RM 6.3.1(15)) with
- -- the flag being placed on the Err_Loc node if it is specified, and
- -- on the appropriate component of the New_Id construct if not. The
- -- argument Get_Inst is set to True when this is a check against a
- -- formal access-to-subprogram type, indicating that mapping of types
- -- is needed.
-
- procedure Check_Subtype_Conformant
- (New_Id : Entity_Id;
- Old_Id : Entity_Id;
- Err_Loc : Node_Id := Empty);
- -- Check that two callable entitites (subprograms, entries, literals)
- -- are subtype conformant, post error message if not (RM 6.3.1(16))
- -- the flag being placed on the Err_Loc node if it is specified, and
- -- on the appropriate component of the New_Id construct if not.
-
- procedure Check_Type_Conformant
- (New_Id : Entity_Id;
- Old_Id : Entity_Id;
- Err_Loc : Node_Id := Empty);
- -- Check that two callable entitites (subprograms, entries, literals)
- -- are type conformant, post error message if not (RM 6.3.1(14)) with
- -- the flag being placed on the Err_Loc node if it is specified, and
- -- on the appropriate component of the New_Id construct if not.
-
- procedure Create_Extra_Formals (E : Entity_Id);
- -- For each parameter of a subprogram or entry that requires an additional
- -- formal (such as for access parameters and indefinite discriminated
- -- parameters), creates the appropriate formal and attach it to its
- -- associated parameter. Each extra formal will also be appended to
- -- the end of Subp's parameter list (with each subsequent extra formal
- -- being attached to the preceding extra formal).
-
- function Find_Corresponding_Spec (N : Node_Id) return Entity_Id;
- -- Use the subprogram specification in the body to retrieve the previous
- -- subprogram declaration, if any.
-
- function Fully_Conformant (New_Id, Old_Id : Entity_Id) return Boolean;
- -- Determine whether two callable entities (subprograms, entries,
- -- literals) are fully conformant (RM 6.3.1(17))
-
- function Fully_Conformant_Expressions
- (Given_E1 : Node_Id;
- Given_E2 : Node_Id)
- return Boolean;
- -- Determines if two (non-empty) expressions are fully conformant
- -- as defined by (RM 6.3.1(18-21))
-
- function Mode_Conformant (New_Id, Old_Id : Entity_Id) return Boolean;
- -- Determine whether two callable entities (subprograms, entries,
- -- literals) are mode conformant (RM 6.3.1(15))
-
- procedure New_Overloaded_Entity
- (S : Entity_Id;
- Derived_Type : Entity_Id := Empty);
- -- Process new overloaded entity. Overloaded entities are created
- -- by enumeration type declarations, subprogram specifications,
- -- entry declarations, and (implicitly) by type derivations.
- -- If Derived_Type is not Empty, then it indicates that this
- -- is subprogram derived for that type.
-
- procedure Process_Formals (
- S : Entity_Id;
- T : List_Id;
- Related_Nod : Node_Id);
- -- Enter the formals in the scope of the subprogram or entry, and
- -- analyze default expressions if any. The implicit types created for
- -- access parameter are attached to the Related_Nod which comes from the
- -- context.
-
- procedure Set_Actual_Subtypes (N : Node_Id; Subp : Entity_Id);
- -- If the formals of a subprogram are unconstrained, build a subtype
- -- declaration that uses the bounds or discriminants of the actual to
- -- construct an actual subtype for them. This is an optimization that
- -- is done only in some cases where the actual subtype cannot change
- -- during execution of the subprogram. By setting the actual subtype
- -- once, we avoid recomputing it unnecessarily.
-
- procedure Set_Formal_Mode (Formal_Id : Entity_Id);
- -- Set proper Ekind to reflect formal mode (in, out, in out)
-
- function Subtype_Conformant (New_Id, Old_Id : Entity_Id) return Boolean;
- -- Determine whether two callable entities (subprograms, entries,
- -- literals) are subtype conformant (RM6.3.1(16))
-
- function Type_Conformant (New_Id, Old_Id : Entity_Id) return Boolean;
- -- Determine whether two callable entities (subprograms, entries,
- -- literals) are type conformant (RM6.3.1(14))
-
- procedure Valid_Operator_Definition (Designator : Entity_Id);
- -- Verify that an operator definition has the proper number of formals
-
-end Sem_Ch6;
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