------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- E X P _ C H 1 1 -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2022, 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 11 constructs with Types; use Types; package Exp_Ch11 is procedure Expand_N_Exception_Declaration (N : Node_Id); procedure Expand_N_Handled_Sequence_Of_Statements (N : Node_Id); procedure Expand_N_Raise_Constraint_Error (N : Node_Id); procedure Expand_N_Raise_Expression (N : Node_Id); procedure Expand_N_Raise_Program_Error (N : Node_Id); procedure Expand_N_Raise_Statement (N : Node_Id); procedure Expand_N_Raise_When_Statement (N : Node_Id); procedure Expand_N_Raise_Storage_Error (N : Node_Id); -- Data structures for gathering information to build exception tables -- See runtime routine Ada.Exceptions for full details on the format and -- content of these tables. procedure Expand_At_End_Handler (HSS : Node_Id; Blk_Id : Entity_Id); -- Given handled statement sequence HSS for which the At_End_Proc field -- is set, and which currently has no exception handlers, this procedure -- expands the special exception handler required. This procedure also -- create a new scope for the given block, if Blk_Id is not Empty. procedure Expand_Exception_Handlers (HSS : Node_Id); -- This procedure expands exception handlers, and is called as part -- of the processing for Expand_N_Handled_Sequence_Of_Statements and -- is also called from Expand_At_End_Handler. N is the handled sequence -- of statements that has the exception handler(s) to be expanded. This -- is also called to expand the special exception handler built for -- accept bodies (see Exp_Ch9.Build_Accept_Body). function Find_Local_Handler (Ename : Entity_Id; Nod : Node_Id) return Node_Id; -- This function searches for a local exception handler that will handle -- the exception named by Ename. If such a local hander exists, then the -- corresponding N_Exception_Handler is returned. If no such handler is -- found then Empty is returned. In order to match and return True, the -- handler may not have a choice parameter specification. Nod is the raise -- node that references the handler. function Get_Local_Raise_Call_Entity return Entity_Id; -- This function is provided for use by the back end in conjunction with -- generation of Local_Raise calls when an exception raise is converted to -- a goto statement. If Local_Raise is defined, its entity is returned, -- if not, Empty is returned (in which case the call is silently skipped). -- WARNING: There is a matching C declaration of this subprogram in fe.h function Get_RT_Exception_Entity (R : RT_Exception_Code) return Entity_Id; -- This function is provided for use by the back end in conjunction with -- generation of Local_Raise calls when an exception raise is converted to -- a goto statement. The argument is the reason code which would be used -- to determine which Rcheck_nn procedure to call. The returned result is -- the exception entity to be passed to Local_Raise. -- WARNING: There is a matching C declaration of this subprogram in fe.h procedure Get_RT_Exception_Name (Code : RT_Exception_Code); -- This procedure is provided for use by the back end to obtain the name of -- the Rcheck procedure for Code. The name is appended to Namet.Name_Buffer -- without the __gnat_rcheck_ prefix. -- WARNING: There is a matching C declaration of this subprogram in fe.h procedure Possible_Local_Raise (N : Node_Id; E : Entity_Id); -- This procedure is called whenever node N might cause the back end -- to generate a local raise for a local Constraint/Program/Storage_Error -- exception. It deals with generating a warning if there is no local -- handler (and restriction No_Exception_Propagation is set), or if there -- is a local handler marking that it has a local raise. E is the entity -- of the corresponding exception. procedure Warn_If_No_Local_Raise (N : Node_Id); -- Called for an exception handler that is not the target of a local raise. -- Issues warning if No_Exception_Propagation restriction is set. N is the -- node for the handler. -- WARNING: There is a matching C declaration of this subprogram in fe.h end Exp_Ch11;