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Diffstat (limited to 'gcc-4.2.1/gcc/ada/sem_ch3.ads')
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diff --git a/gcc-4.2.1/gcc/ada/sem_ch3.ads b/gcc-4.2.1/gcc/ada/sem_ch3.ads deleted file mode 100644 index d4d379939..000000000 --- a/gcc-4.2.1/gcc/ada/sem_ch3.ads +++ /dev/null @@ -1,252 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- S E M _ C H 3 -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2005, 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, 51 Franklin Street, Fifth Floor, -- --- Boston, MA 02110-1301, USA. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - -with Nlists; use Nlists; -with Types; use Types; - -package Sem_Ch3 is - procedure Analyze_Component_Declaration (N : Node_Id); - procedure Analyze_Incomplete_Type_Decl (N : Node_Id); - procedure Analyze_Itype_Reference (N : Node_Id); - procedure Analyze_Number_Declaration (N : Node_Id); - procedure Analyze_Object_Declaration (N : Node_Id); - procedure Analyze_Others_Choice (N : Node_Id); - procedure Analyze_Private_Extension_Declaration (N : Node_Id); - procedure Analyze_Subtype_Declaration (N : Node_Id); - procedure Analyze_Subtype_Indication (N : Node_Id); - procedure Analyze_Type_Declaration (N : Node_Id); - procedure Analyze_Variant_Part (N : Node_Id); - - function Access_Definition - (Related_Nod : Node_Id; - N : Node_Id) return Entity_Id; - -- An access definition defines a general access type for a formal - -- parameter. The procedure is called when processing formals, when - -- the current scope is the subprogram. The Implicit type is attached - -- to the Related_Nod put into the enclosing scope, so that the only - -- entities defined in the spec are the formals themselves. - - procedure Access_Subprogram_Declaration - (T_Name : Entity_Id; - T_Def : Node_Id); - -- The subprogram specification yields the signature of an implicit - -- type, whose Ekind is Access_Subprogram_Type. This implicit type is - -- the designated type of the declared access type. In subprogram calls, - -- the signature of the implicit type works like the profile of a regular - -- subprogram. - - procedure Analyze_Declarations (L : List_Id); - -- Called to analyze a list of declarations (in what context ???). Also - -- performs necessary freezing actions (more description needed ???) - - procedure Analyze_Interface_Declaration (T : Entity_Id; Def : Node_Id); - -- Analyze an interface declaration or a formal interface declaration - - procedure Analyze_Per_Use_Expression (N : Node_Id; T : Entity_Id); - -- Default and per object expressions do not freeze their components, - -- and must be analyzed and resolved accordingly. The analysis is - -- done by calling the Pre_Analyze_And_Resolve routine and setting - -- the global In_Default_Expression flag. See the documentation section - -- entitled "Handling of Default and Per-Object Expressions" in sem.ads - -- for details. N is the expression to be analyzed, T is the expected type. - - procedure Array_Type_Declaration (T : in out Entity_Id; Def : Node_Id); - -- Process an array type declaration. If the array is constrained, we - -- create an implicit parent array type, with the same index types and - -- component type. - - procedure Access_Type_Declaration (T : Entity_Id; Def : Node_Id); - -- Process an access type declaration - - procedure Check_Abstract_Overriding (T : Entity_Id); - -- Check that all abstract subprograms inherited from T's parent type - -- have been overridden as required, and that nonabstract subprograms - -- have not been incorrectly overridden with an abstract subprogram. - - procedure Check_Aliased_Component_Types (T : Entity_Id); - -- Given an array type or record type T, check that if the type is - -- nonlimited, then the nominal subtype of any components of T - -- that have discriminants must be constrained. - - procedure Check_Completion (Body_Id : Node_Id := Empty); - -- At the end of a declarative part, verify that all entities that - -- require completion have received one. If Body_Id is absent, the - -- error indicating a missing completion is placed on the declaration - -- that needs completion. If Body_Id is present, it is the defining - -- identifier of a package body, and errors are posted on that node, - -- rather than on the declarations that require completion in the package - -- declaration. - - procedure Collect_Interfaces - (N : Node_Id; - Derived_Type : Entity_Id); - -- Ada 2005 (AI-251): Subsidiary procedure to Build_Derived_Record_Type - -- and Analyze_Formal_Interface_Type. - -- Collect the list of interfaces that are not already implemented by the - -- ancestors. This is the list of interfaces for which we must provide - -- additional tag components. - - procedure Derive_Subprogram - (New_Subp : in out Entity_Id; - Parent_Subp : Entity_Id; - Derived_Type : Entity_Id; - Parent_Type : Entity_Id; - Actual_Subp : Entity_Id := Empty); - -- Derive the subprogram Parent_Subp from Parent_Type, and replace the - -- subsidiary subtypes with the derived type to build the specification - -- of the inherited subprogram (returned in New_Subp). For tagged types, - -- the derived subprogram is aliased to that of the actual (in the - -- case where Actual_Subp is nonempty) rather than to the corresponding - -- subprogram of the parent type. - - procedure Derive_Subprograms - (Parent_Type : Entity_Id; - Derived_Type : Entity_Id; - Generic_Actual : Entity_Id := Empty; - No_Predefined_Prims : Boolean := False); - -- To complete type derivation, collect/retrieve the primitive operations - -- of the parent type, and replace the subsidiary subtypes with the derived - -- type, to build the specs of the inherited ops. For generic actuals, the - -- mapping of the primitive operations to those of the parent type is also - -- done by rederiving the operations within the instance. For tagged types, - -- the derived subprograms are aliased to those of the actual, not those of - -- the ancestor. The last two params are used in case of derivation from - -- abstract interface types: No_Predefined_Prims is used to avoid the - -- derivation of predefined primitives from an abstract interface. - -- - -- Note: one might expect this to be private to the package body, but - -- there is one rather unusual usage in package Exp_Dist. - - function Find_Type_Of_Subtype_Indic (S : Node_Id) return Entity_Id; - -- Given a subtype indication S (which is really an N_Subtype_Indication - -- node or a plain N_Identifier), find the type of the subtype mark. - - function Find_Type_Name (N : Node_Id) return Entity_Id; - -- Enter the identifier in a type definition, or find the entity already - -- declared, in the case of the full declaration of an incomplete or - -- private type. - - function Get_Discriminant_Value - (Discriminant : Entity_Id; - Typ_For_Constraint : Entity_Id; - Constraint : Elist_Id) return Node_Id; - -- ??? MORE DOCUMENTATION - -- Given a discriminant somewhere in the Typ_For_Constraint tree - -- and a Constraint, return the value of that discriminant. - - function Is_Null_Extension (T : Entity_Id) return Boolean; - -- Returns True if the tagged type T has an N_Full_Type_Declaration that - -- is a null extension, meaning that it has an extension part without any - -- components and does not have a known discriminant part. - - function Is_Visible_Component (C : Entity_Id) return Boolean; - -- Determines if a record component C is visible in the present context. - -- Note that even though component C could appear in the entity chain - -- of a record type, C may not be visible in the current context. For - -- instance, C may be a component inherited in the full view of a private - -- extension which is not visible in the current context. - - procedure Make_Index - (I : Node_Id; - Related_Nod : Node_Id; - Related_Id : Entity_Id := Empty; - Suffix_Index : Nat := 1); - -- Process an index that is given in an array declaration, an entry - -- family declaration or a loop iteration. The index is given by an - -- index declaration (a 'box'), or by a discrete range. The later can - -- be the name of a discrete type, or a subtype indication. - -- Related_Nod is the node where the potential generated implicit types - -- will be inserted. The 2 last parameters are used for creating the name. - - procedure Make_Class_Wide_Type (T : Entity_Id); - -- A Class_Wide_Type is created for each tagged type definition. The - -- attributes of a class wide type are inherited from those of the type - -- T. If T is introduced by a private declaration, the corresponding - -- class wide type is created at the same time, and therefore there is - -- a private and a full declaration for the class wide type type as well. - - procedure Process_Full_View (N : Node_Id; Full_T, Priv_T : Entity_Id); - -- Process some semantic actions when the full view of a private type is - -- encountered and analyzed. The first action is to create the full views - -- of the dependant private subtypes. The second action is to recopy the - -- primitive operations of the private view (in the tagged case). - -- N is the N_Full_Type_Declaration node. - - -- Full_T is the full view of the type whose full declaration is in N. - -- - -- Priv_T is the private view of the type whose full declaration is in N. - - procedure Process_Range_Expr_In_Decl - (R : Node_Id; - T : Entity_Id; - Check_List : List_Id := Empty_List; - R_Check_Off : Boolean := False); - -- Process a range expression that appears in a declaration context. The - -- range is analyzed and resolved with the base type of the given type, - -- and an appropriate check for expressions in non-static contexts made - -- on the bounds. R is analyzed and resolved using T, so the caller should - -- if necessary link R into the tree before the call, and in particular in - -- the case of a subtype declaration, it is appropriate to set the parent - -- pointer of R so that the types get properly frozen. The Check_List - -- parameter is used when the subprogram is called from - -- Build_Record_Init_Proc and is used to return a set of constraint - -- checking statements generated by the Checks package. R_Check_Off is - -- set to True when the call to Range_Check is to be skipped. - - function Process_Subtype - (S : Node_Id; - Related_Nod : Node_Id; - Related_Id : Entity_Id := Empty; - Suffix : Character := ' ') return Entity_Id; - -- Process a subtype indication S and return corresponding entity. - -- Related_Nod is the node where the potential generated implicit types - -- will be inserted. The Related_Id and Suffix parameters are used to - -- build the associated Implicit type name. - - procedure Process_Discriminants - (N : Node_Id; - Prev : Entity_Id := Empty); - -- Process the discriminants contained in an N_Full_Type_Declaration or - -- N_Incomplete_Type_Decl node N. If the declaration is a completion, - -- Prev is entity on the partial view, on which references are posted. - - function Replace_Anonymous_Access_To_Protected_Subprogram - (N : Node_Id; - Prev_E : Entity_Id) return Entity_Id; - -- Ada 2005 (AI-254): Create and decorate an internal full type declaration - -- in the enclosing scope corresponding to an anonymous access to protected - -- subprogram. In addition, replace the anonymous access by an occurrence - -- of this internal type. Prev_Etype is used to link the new internal - -- entity with the anonymous entity. Return the entity of this type - -- declaration. - - procedure Set_Completion_Referenced (E : Entity_Id); - -- If E is the completion of a private or incomplete type declaration, - -- or the completion of a deferred constant declaration, mark the entity - -- as referenced. Warnings on unused entities, if needed, go on the - -- partial view. - -end Sem_Ch3; |