1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- E X P _ C H 1 1 --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2010, 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_Program_Error (N : Node_Id);
procedure Expand_N_Raise_Statement (N : Node_Id);
procedure Expand_N_Raise_Storage_Error (N : Node_Id);
procedure Expand_N_Subprogram_Info (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; Block : Node_Id);
-- Given a 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
-- Block 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).
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.
function Is_Non_Ada_Error (E : Entity_Id) return Boolean;
-- This function is provided for Gigi use. It returns True if operating on
-- VMS, and the argument E is the entity for System.Aux_Dec.Non_Ada_Error.
-- This is used to generate the special matching code for this exception.
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.
end Exp_Ch11;
|
