| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- E X P _ C H 1 1 -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2021, 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; |
