c-common.def revision 96263 
1/* This file contains the definitions and documentation for the
2   additional tree codes used in the GNU C++ compiler (see tree.def
3   for the standard codes).
4   Copyright (C) 1987, 1988, 1990, 1993, 1997, 1998,
5   1999, 2000, 2001 Free Software Foundation, Inc.
6   Written by Benjamin Chelf <chelf@codesourcery.com>
7
8This file is part of GCC.
9
10GCC is free software; you can redistribute it and/or modify it under
11the terms of the GNU General Public License as published by the Free
12Software Foundation; either version 2, or (at your option) any later
13version.
14
15GCC is distributed in the hope that it will be useful, but WITHOUT ANY
16WARRANTY; without even the implied warranty of MERCHANTABILITY or
17FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
18for more details.
19
20You should have received a copy of the GNU General Public License
21along with GCC; see the file COPYING.  If not, write to the Free
22Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2302111-1307, USA.  */
24
25/* Tree nodes relevant to both C and C++. These were originally in
26cp-tree.def in the cp subdir. */
27
28/* A node to remember a source position.  */
29DEFTREECODE (SRCLOC, "srcloc", 'x', 2)
30
31DEFTREECODE (SIZEOF_EXPR, "sizeof_expr", '1', 1)
32DEFTREECODE (ARROW_EXPR, "arrow_expr", 'e', 1)
33DEFTREECODE (ALIGNOF_EXPR, "alignof_expr", '1', 1)
34
35/* Used to represent an expression statement.  Use `EXPR_STMT_EXPR' to
36   obtain the expression. */
37DEFTREECODE (EXPR_STMT, "expr_stmt", 'e', 1)
38
39/* Used to represent a brace-enclosed block.  The operand is
40   COMPOUND_BODY. */ 
41DEFTREECODE (COMPOUND_STMT, "compound_stmt", 'e', 1)
42
43/* Used to represent a local declaration. The operand is
44   DECL_STMT_DECL. */
45DEFTREECODE (DECL_STMT, "decl_stmt", 'e', 1)
46
47/* Represents an 'if' statement. The operands are IF_COND,
48   THEN_CLAUSE, and ELSE_CLAUSE, respectively. */
49DEFTREECODE (IF_STMT, "if_stmt", 'e', 3)
50
51/* Used to represent a `for' statement. The operands are
52   FOR_INIT_STMT, FOR_COND, FOR_EXPR, and FOR_BODY, respectively. */
53DEFTREECODE (FOR_STMT, "for_stmt", 'e', 4)
54
55/* Used to represent a 'while' statement. The operands are WHILE_COND
56   and WHILE_BODY, respectively. */
57DEFTREECODE (WHILE_STMT, "while_stmt", 'e', 2)
58
59/* Used to represent a 'do' statement. The operands are DO_BODY and
60   DO_COND, respectively. */
61DEFTREECODE (DO_STMT, "do_stmt", 'e', 2)
62
63/* Used to represent a 'return' statement. The operand is
64   RETURN_EXPR. */
65DEFTREECODE (RETURN_STMT, "return_stmt", 'e', 1)
66
67/* Used to represent a 'break' statement. */
68DEFTREECODE (BREAK_STMT, "break_stmt", 'e', 0)
69
70/* Used to represent a 'continue' statement. */
71DEFTREECODE (CONTINUE_STMT, "continue_stmt", 'e', 0)
72
73/* Used to represent a 'switch' statement. The operands are
74   SWITCH_COND, SWITCH_BODY and SWITCH_TYPE, respectively. */
75DEFTREECODE (SWITCH_STMT, "switch_stmt", 'e', 3)
76
77/* Used to represent a 'goto' statement. The operand is GOTO_DESTINATION. */
78DEFTREECODE (GOTO_STMT, "goto_stmt", 'e', 1)
79
80/* Used to represent a 'label' statement. The operand is a LABEL_DECL
81   and can be obtained through the macro LABEL_STMT_LABEL. */
82DEFTREECODE (LABEL_STMT, "label_stmt", 'e', 1)
83
84/* Used to represent an inline assembly statement. */
85DEFTREECODE (ASM_STMT, "asm_stmt", 'e', 5)
86
87/* A SCOPE_STMT marks the beginning or end of a scope.  If
88   SCOPE_BEGIN_P holds, then this is the start of a scope.  If
89   SCOPE_END_P holds, then this is the end of a scope.  If
90   SCOPE_NULLIFIED_P holds then there turned out to be no variables in
91   this scope.  The SCOPE_STMT_BLOCK is the BLOCK containing the
92   variables declared in this scope.  */
93DEFTREECODE (SCOPE_STMT, "scope_stmt", 'e', 1)
94
95/* A FILE_STMT marks the spot where a function changes files.  It has no
96   other semantics.  FILE_STMT_FILENAME gives the name.  */
97DEFTREECODE (FILE_STMT, "file_stmt", 'e', 1)
98
99/* Used to represent a CASE_LABEL. The operands are CASE_LOW and
100   CASE_HIGH, respectively. If CASE_LOW is NULL_TREE, the label is a
101   'default' label. If CASE_HIGH is NULL_TREE, the label is a normal case
102   label.  The CASE_LABEL_DECL is a LABEL_DECL for this node.  */
103DEFTREECODE (CASE_LABEL, "case_label", 'e', 3)
104
105/* A STMT_EXPR represents a statement-expression.  The
106   STMT_EXPR_STMT is the statement given by the expression.  */
107DEFTREECODE (STMT_EXPR, "stmt_expr", 'e', 1)
108
109/* A COMPOUND_LITERAL_EXPR represents a C99 compound literal.  The
110   COMPOUND_LITERAL_EXPR_DECL_STMT is the a DECL_STMT containing the decl
111   for the anonymous object represented by the COMPOUND_LITERAL;
112   the DECL_INITIAL of that decl is the CONSTRUCTOR that initializes
113   the compound literal.  */
114DEFTREECODE (COMPOUND_LITERAL_EXPR, "compound_literal_expr", 'e', 1)
115
116/* A CLEANUP_STMT marks the point at which a declaration is fully
117   constructed.  If, after this point, the CLEANUP_DECL goes out of
118   scope, the CLEANUP_EXPR must be run.  */
119DEFTREECODE (CLEANUP_STMT, "cleanup_stmt", 'e', 2)
120
121/*
122Local variables:
123mode:c
124End:
125*/
126