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Diffstat (limited to 'gcc-4.7/gcc/ada/exp_ch6.ads')
| -rw-r--r-- | gcc-4.7/gcc/ada/exp_ch6.ads | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/gcc-4.7/gcc/ada/exp_ch6.ads b/gcc-4.7/gcc/ada/exp_ch6.ads deleted file mode 100644 index 77df2b7da..000000000 --- a/gcc-4.7/gcc/ada/exp_ch6.ads +++ /dev/null @@ -1,225 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- E X P _ C H 6 -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2011, 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. -- --- -- ------------------------------------------------------------------------------- - --- Expand routines for chapter 6 constructs - -with Types; use Types; - -package Exp_Ch6 is - - procedure Expand_N_Extended_Return_Statement (N : Node_Id); - procedure Expand_N_Function_Call (N : Node_Id); - procedure Expand_N_Procedure_Call_Statement (N : Node_Id); - procedure Expand_N_Simple_Return_Statement (N : Node_Id); - procedure Expand_N_Subprogram_Body (N : Node_Id); - procedure Expand_N_Subprogram_Body_Stub (N : Node_Id); - procedure Expand_N_Subprogram_Declaration (N : Node_Id); - - procedure Expand_Actuals (N : Node_Id; Subp : Entity_Id); - -- For each actual of an in-out or out parameter which is a numeric - -- (view) conversion of the form T (A), where A denotes a variable, - -- we insert the declaration: - -- - -- Temp : T[ := T (A)]; - -- - -- prior to the call. Then we replace the actual with a reference to Temp, - -- and append the assignment: - -- - -- A := TypeA (Temp); - -- - -- after the call. Here TypeA is the actual type of variable A. For out - -- parameters, the initial declaration has no expression. If A is not an - -- entity name, we generate instead: - -- - -- Var : TypeA renames A; - -- Temp : T := Var; -- omitting expression for out parameter. - -- ... - -- Var := TypeA (Temp); - -- - -- For other in-out parameters, we emit the required constraint checks - -- before and/or after the call. - -- - -- For all parameter modes, actuals that denote components and slices of - -- packed arrays are expanded into suitable temporaries. - -- - -- For non-scalar objects that are possibly unaligned, add call by copy - -- code (copy in for IN and IN OUT, copy out for OUT and IN OUT). - - procedure Expand_Call (N : Node_Id); - -- This procedure contains common processing for Expand_N_Function_Call, - -- Expand_N_Procedure_Statement, and Expand_N_Entry_Call. - - procedure Freeze_Subprogram (N : Node_Id); - -- generate the appropriate expansions related to Subprogram freeze - -- nodes (e.g. the filling of the corresponding Dispatch Table for - -- Primitive Operations) - - -- The following type defines the various forms of allocation used for the - -- results of build-in-place function calls. - - type BIP_Allocation_Form is - (Unspecified, - Caller_Allocation, - Secondary_Stack, - Global_Heap, - User_Storage_Pool); - - type BIP_Formal_Kind is - -- Ada 2005 (AI-318-02): This type defines the kinds of implicit extra - -- formals created for build-in-place functions. The order of these - -- enumeration literals matches the order in which the formals are - -- declared. See Sem_Ch6.Create_Extra_Formals. - - (BIP_Alloc_Form, - -- Present if result subtype is unconstrained or tagged. Indicates - -- whether the return object is allocated by the caller or callee, and - -- if the callee, whether to use the secondary stack or the heap. See - -- Create_Extra_Formals. - - BIP_Storage_Pool, - -- Present if result subtype is unconstrained or tagged. If - -- BIP_Alloc_Form = User_Storage_Pool, this is a pointer to the pool - -- (of type access to Root_Storage_Pool'Class). Otherwise null. - - BIP_Finalization_Master, - -- Present if result type needs finalization. Pointer to caller's - -- finalization master. - - BIP_Task_Master, - -- Present if result type contains tasks. Master associated with - -- calling context. - - BIP_Activation_Chain, - -- Present if result type contains tasks. Caller's activation chain - - BIP_Object_Access); - -- Present for all build-in-place functions. Address at which to place - -- the return object, or null if BIP_Alloc_Form indicates allocated by - -- callee. - -- - -- ??? We might also need to be able to pass in a constrained flag. - - function BIP_Formal_Suffix (Kind : BIP_Formal_Kind) return String; - -- Ada 2005 (AI-318-02): Returns a string to be used as the suffix of names - -- for build-in-place formal parameters of the given kind. - - function Build_In_Place_Formal - (Func : Entity_Id; - Kind : BIP_Formal_Kind) return Entity_Id; - -- Ada 2005 (AI-318-02): Locates and returns the entity for the implicit - -- build-in-place formal parameter of the given kind associated with the - -- function Func, and returns its Entity_Id. It is a bug if not found; the - -- caller should ensure this is called only when the extra formal exists. - - function Is_Build_In_Place_Function (E : Entity_Id) return Boolean; - -- Ada 2005 (AI-318-02): Returns True if E denotes a function, generic - -- function, or access-to-function type whose result must be built in - -- place; otherwise returns False. For Ada 2005, this is currently - -- restricted to the set of functions whose result subtype is an inherently - -- limited type. In Ada 95, this must be False for inherently limited - -- result types (but currently returns False for all Ada 95 functions). - -- Eventually we plan to support build-in-place for nonlimited types. - -- Build-in-place is usually more efficient for large things, and less - -- efficient for small things. However, we never use build-in-place if the - -- convention is other than Ada, because that would disturb mixed-language - -- programs. Note that for the non-inherently-limited cases, we must make - -- the same decision for Ada 95 and 2005, so that mixed-dialect programs - -- will work. - - function Is_Build_In_Place_Function_Call (N : Node_Id) return Boolean; - -- Ada 2005 (AI-318-02): Returns True if N denotes a call to a function - -- that requires handling as a build-in-place call or is a qualified - -- expression applied to such a call; otherwise returns False. - - function Is_Null_Procedure (Subp : Entity_Id) return Boolean; - -- Predicate to recognize stubbed procedures and null procedures, which - -- can be inlined unconditionally in all cases. - - procedure Make_Build_In_Place_Call_In_Allocator - (Allocator : Node_Id; - Function_Call : Node_Id); - -- Ada 2005 (AI-318-02): Handle a call to a build-in-place function that - -- occurs as the expression initializing an allocator, by passing access - -- to the allocated object as an additional parameter of the function call. - -- A new access object is declared that is initialized to the result of the - -- allocator, passed to the function, and the allocator is rewritten to - -- refer to that access object. Function_Call must denote either an - -- N_Function_Call node for which Is_Build_In_Place_Call is True, or else - -- an N_Qualified_Expression node applied to such a function call. - - procedure Make_Build_In_Place_Call_In_Anonymous_Context - (Function_Call : Node_Id); - -- Ada 2005 (AI-318-02): Handle a call to a build-in-place function that - -- occurs in a context that does not provide a separate object. A temporary - -- object is created to act as the return object and an access to the - -- temporary is passed as an additional parameter of the call. This occurs - -- in contexts such as subprogram call actuals and object renamings. - -- Function_Call must denote either an N_Function_Call node for which - -- Is_Build_In_Place_Call is True, or else an N_Qualified_Expression node - -- applied to such a function call. - - procedure Make_Build_In_Place_Call_In_Assignment - (Assign : Node_Id; - Function_Call : Node_Id); - -- Ada 2005 (AI-318-02): Handle a call to a build-in-place function that - -- occurs as the right-hand side of an assignment statement by passing - -- access to the left-hand side as an additional parameter of the function - -- call. Assign must denote a N_Assignment_Statement. Function_Call must - -- denote either an N_Function_Call node for which Is_Build_In_Place_Call - -- is True, or an N_Qualified_Expression node applied to such a function - -- call. - - procedure Make_Build_In_Place_Call_In_Object_Declaration - (Object_Decl : Node_Id; - Function_Call : Node_Id); - -- Ada 2005 (AI-318-02): Handle a call to a build-in-place function that - -- occurs as the expression initializing an object declaration by - -- passing access to the declared object as an additional parameter of the - -- function call. Function_Call must denote either an N_Function_Call node - -- for which Is_Build_In_Place_Call is True, or an N_Qualified_Expression - -- node applied to such a function call. - - function Needs_BIP_Alloc_Form (Func_Id : Entity_Id) return Boolean; - -- Ada 2005 (AI-318-02): Return True if the function needs an implicit - -- BIP_Alloc_Form parameter (see type BIP_Formal_Kind). - - function Needs_BIP_Finalization_Master (Func_Id : Entity_Id) return Boolean; - -- Ada 2005 (AI-318-02): Return True if the result subtype of function - -- Func_Id needs finalization actions. - - function Needs_Result_Accessibility_Level - (Func_Id : Entity_Id) return Boolean; - -- Ada 2012 (AI05-0234): Return True if the function needs an implicit - -- parameter to identify the accessibility level of the function result - -- "determined by the point of call". - - procedure Add_Extra_Actual_To_Call - (Subprogram_Call : Node_Id; - Extra_Formal : Entity_Id; - Extra_Actual : Node_Id); - -- Adds Extra_Actual as a named parameter association for the formal - -- Extra_Formal in Subprogram_Call. - -end Exp_Ch6; |