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Diffstat (limited to 'gcc-4.4.0/gcc/ada/sem_ch12.ads')
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diff --git a/gcc-4.4.0/gcc/ada/sem_ch12.ads b/gcc-4.4.0/gcc/ada/sem_ch12.ads deleted file mode 100644 index c3b34173e..000000000 --- a/gcc-4.4.0/gcc/ada/sem_ch12.ads +++ /dev/null @@ -1,172 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- S E M _ C H 1 2 -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2008, 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 3, or (at your option) any later ver- -- --- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- --- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- --- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- --- for more details. You should have received a copy of the GNU General -- --- Public License distributed with GNAT; see file COPYING3. If not, go to -- --- http://www.gnu.org/licenses for a complete copy of the license. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - -with Inline; use Inline; -with Types; use Types; - -package Sem_Ch12 is - procedure Analyze_Generic_Package_Declaration (N : Node_Id); - procedure Analyze_Generic_Subprogram_Declaration (N : Node_Id); - procedure Analyze_Package_Instantiation (N : Node_Id); - procedure Analyze_Procedure_Instantiation (N : Node_Id); - procedure Analyze_Function_Instantiation (N : Node_Id); - procedure Analyze_Formal_Object_Declaration (N : Node_Id); - procedure Analyze_Formal_Type_Declaration (N : Node_Id); - procedure Analyze_Formal_Subprogram (N : Node_Id); - procedure Analyze_Formal_Package (N : Node_Id); - - procedure Start_Generic; - -- Must be invoked before starting to process a generic spec or body - - procedure End_Generic; - -- Must be invoked just at the end of the end of the processing of a - -- generic spec or body. - - procedure Check_Generic_Child_Unit - (Gen_Id : Node_Id; - Parent_Installed : in out Boolean); - -- If the name of the generic unit in an instantiation or a renaming - -- is a selected component, then the prefix may be an instance and the - -- selector may designate a child unit. Retrieve the parent generic - -- and search for the child unit that must be declared within. Similarly, - -- if this is the name of a generic child unit within an instantiation of - -- its own parent, retrieve the parent generic. - - function Copy_Generic_Node - (N : Node_Id; - Parent_Id : Node_Id; - Instantiating : Boolean) return Node_Id; - -- Copy the tree for a generic unit or its body. The unit is copied - -- repeatedly: once to produce a copy on which semantic analysis of - -- the generic is performed, and once for each instantiation. The tree - -- being copied is not semantically analyzed, except that references to - -- global entities are marked on terminal nodes. - - function Get_Instance_Of (A : Entity_Id) return Entity_Id; - -- Retrieve actual associated with given generic parameter. - -- If A is uninstantiated or not a generic parameter, return A. - - function Get_Package_Instantiation_Node (A : Entity_Id) return Node_Id; - -- Given the entity of a unit that is an instantiation, retrieve the - -- original instance node. This is used when loading the instantiations - -- of the ancestors of a child generic that is being instantiated. - - procedure Instantiate_Package_Body - (Body_Info : Pending_Body_Info; - Inlined_Body : Boolean := False; - Body_Optional : Boolean := False); - -- Called after semantic analysis, to complete the instantiation of - -- package instances. The flag Inlined_Body is set if the body is - -- being instantiated on the fly for inlined purposes. - -- - -- The flag Body_Optional indicates that the call is for an instance - -- that precedes the current instance in the same declarative part. - -- This call is needed when instantiating a nested generic whose body - -- is to be found in the body of an instance. Normally we instantiate - -- package bodies only when they appear in the main unit, or when their - -- contents are needed for a nested generic G. If unit U contains several - -- instances I1, I2, etc. and I2 contains a nested generic, then when U - -- appears in the context of some other unit P that contains an instance - -- of G, we compile the body of I2, but not that of I1. However, when we - -- compile U as the main unit, we compile both bodies. This will lead to - -- lead to link-time errors if the compilation of I1 generates public - -- symbols, because those in I2 will receive different names in both - -- cases. This forces us to analyze the body of I1 even when U is not the - -- main unit. We don't want this additional mechanism to generate an error - -- when the body of the generic for I1 is not present, and this is the - -- reason for the presence of the flag Body_Optional, which is exchanged - -- between the current procedure and Load_Parent_Of_Generic. - - procedure Instantiate_Subprogram_Body - (Body_Info : Pending_Body_Info; - Body_Optional : Boolean := False); - -- Called after semantic analysis, to complete the instantiation of - -- function and procedure instances. The flag Body_Optional has the - -- same purpose as described for Instantiate_Package_Body. - - function Need_Subprogram_Instance_Body - (N : Node_Id; - Subp : Entity_Id) return Boolean; - - -- If a subprogram instance is inlined, indicate that the body of it - -- must be created, to be used in inlined calls by the back-end. The - -- subprogram may be inlined because the generic itself carries the - -- pragma, or because a pragma appears for the instance in the scope. - -- of the instance. - - procedure Save_Global_References (N : Node_Id); - -- Traverse the original generic unit, and capture all references to - -- entities that are defined outside of the generic in the analyzed - -- tree for the template. These references are copied into the original - -- tree, so that they appear automatically in every instantiation. - -- A critical invariant in this approach is that if an id in the generic - -- resolves to a local entity, the corresponding id in the instance - -- will resolve to the homologous entity in the instance, even though - -- the enclosing context for resolution is different, as long as the - -- global references have been captured as described here. - - -- Because instantiations can be nested, the environment of the instance, - -- involving the actuals and other data-structures, must be saved and - -- restored in stack-like fashion. Front-end inlining also uses these - -- structures for the management of private/full views. - - procedure Set_Copied_Sloc_For_Inlined_Body (N : Node_Id; E : Entity_Id); - -- This procedure is used when a subprogram body is inlined. This process - -- shares the same circuitry as the creation of an instantiated copy of - -- a generic template. The call to this procedure establishes a new source - -- file entry representing the inlined body as an instantiation, marked as - -- an inlined body (so that errout can distinguish cases for generating - -- error messages, otherwise the treatment is identical). In this call - -- N is the subprogram body and E is the defining identifier of the - -- subprogram in question. The resulting Sloc adjustment factor is - -- saved as part of the internal state of the Sem_Ch12 package for use - -- in subsequent calls to copy nodes. - - procedure Save_Env - (Gen_Unit : Entity_Id; - Act_Unit : Entity_Id); - -- ??? comment needed - - procedure Restore_Env; - -- ??? comment needed - - procedure Initialize; - -- Initializes internal data structures - - procedure Check_Private_View (N : Node_Id); - -- Check whether the type of a generic entity has a different view between - -- the point of generic analysis and the point of instantiation. If the - -- view has changed, then at the point of instantiation we restore the - -- correct view to perform semantic analysis of the instance, and reset - -- the current view after instantiation. The processing is driven by the - -- current private status of the type of the node, and Has_Private_View, - -- a flag that is set at the point of generic compilation. If view and - -- flag are inconsistent then the type is updated appropriately. - -- - -- This subprogram is used in Check_Generic_Actuals and Copy_Generic_Node, - -- and is exported here for the purpose of front-end inlining (see Exp_Ch6. - -- Expand_Inlined_Call.Process_Formals). - -end Sem_Ch12; |