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
28DEFTREECODE (SIZEOF_EXPR, "sizeof_expr", '1', 1)
29DEFTREECODE (ARROW_EXPR, "arrow_expr", 'e', 1)
30DEFTREECODE (ALIGNOF_EXPR, "alignof_expr", '1', 1)
31
32/* Used to represent an expression statement.  Use `EXPR_STMT_EXPR' to
33   obtain the expression.  */
34DEFTREECODE (EXPR_STMT, "expr_stmt", 'e', 1)
35
36/* Used to represent a brace-enclosed block.  The operand is
37   COMPOUND_BODY.  */
38DEFTREECODE (COMPOUND_STMT, "compound_stmt", 'e', 1)
39
40/* Used to represent a local declaration. The operand is
41   DECL_STMT_DECL.  */
42DEFTREECODE (DECL_STMT, "decl_stmt", 'e', 1)
43
44/* Represents an 'if' statement. The operands are IF_COND,
45   THEN_CLAUSE, and ELSE_CLAUSE, respectively.  */
46DEFTREECODE (IF_STMT, "if_stmt", 'e', 3)
47
48/* Used to represent a `for' statement. The operands are
49   FOR_INIT_STMT, FOR_COND, FOR_EXPR, and FOR_BODY, respectively.  */
50DEFTREECODE (FOR_STMT, "for_stmt", 'e', 4)
51
52/* Used to represent a 'while' statement. The operands are WHILE_COND
53   and WHILE_BODY, respectively.  */
54DEFTREECODE (WHILE_STMT, "while_stmt", 'e', 2)
55
56/* Used to represent a 'do' statement. The operands are DO_BODY and
57   DO_COND, respectively.  */
58DEFTREECODE (DO_STMT, "do_stmt", 'e', 2)
59
60/* Used to represent a 'return' statement. The operand is
61   RETURN_STMT_EXPR.  */
62DEFTREECODE (RETURN_STMT, "return_stmt", 'e', 1)
63
64/* Used to represent a 'break' statement.  */
65DEFTREECODE (BREAK_STMT, "break_stmt", 'e', 0)
66
67/* Used to represent a 'continue' statement.  */
68DEFTREECODE (CONTINUE_STMT, "continue_stmt", 'e', 0)
69
70/* Used to represent a 'switch' statement. The operands are
71   SWITCH_COND, SWITCH_BODY and SWITCH_TYPE, respectively.  */
72DEFTREECODE (SWITCH_STMT, "switch_stmt", 'e', 3)
73
74/* Used to represent a 'goto' statement. The operand is GOTO_DESTINATION.  */
75DEFTREECODE (GOTO_STMT, "goto_stmt", 'e', 1)
76
77/* Used to represent a 'label' statement. The operand is a LABEL_DECL
78   and can be obtained through the macro LABEL_STMT_LABEL.  */
79DEFTREECODE (LABEL_STMT, "label_stmt", 'e', 1)
80
81/* Used to represent an inline assembly statement.  */
82DEFTREECODE (ASM_STMT, "asm_stmt", 'e', 5)
83
84/* A SCOPE_STMT marks the beginning or end of a scope.  If
85   SCOPE_BEGIN_P holds, then this is the start of a scope.  If
86   SCOPE_END_P holds, then this is the end of a scope.  If
87   SCOPE_NULLIFIED_P holds then there turned out to be no variables in
88   this scope.  The SCOPE_STMT_BLOCK is the BLOCK containing the
89   variables declared in this scope.  */
90DEFTREECODE (SCOPE_STMT, "scope_stmt", 'e', 1)
91
92/* A FILE_STMT marks the spot where a function changes files.  It has no
93   other semantics.  FILE_STMT_FILENAME gives the name.  */
94DEFTREECODE (FILE_STMT, "file_stmt", 'e', 1)
95
96/* Used to represent a CASE_LABEL. The operands are CASE_LOW and
97   CASE_HIGH, respectively. If CASE_LOW is NULL_TREE, the label is a
98   'default' label. If CASE_HIGH is NULL_TREE, the label is a normal case
99   label.  The CASE_LABEL_DECL is a LABEL_DECL for this node.  */
100DEFTREECODE (CASE_LABEL, "case_label", 'e', 3)
101
102/* A STMT_EXPR represents a statement-expression.  The
103   STMT_EXPR_STMT is the statement given by the expression.  */
104DEFTREECODE (STMT_EXPR, "stmt_expr", 'e', 1)
105
106/* A COMPOUND_LITERAL_EXPR represents a C99 compound literal.  The
107   COMPOUND_LITERAL_EXPR_DECL_STMT is the a DECL_STMT containing the decl
108   for the anonymous object represented by the COMPOUND_LITERAL;
109   the DECL_INITIAL of that decl is the CONSTRUCTOR that initializes
110   the compound literal.  */
111DEFTREECODE (COMPOUND_LITERAL_EXPR, "compound_literal_expr", 'e', 1)
112
113/* A CLEANUP_STMT marks the point at which a declaration is fully
114   constructed.  If, after this point, the CLEANUP_DECL goes out of
115   scope, the CLEANUP_EXPR must be run.  */
116DEFTREECODE (CLEANUP_STMT, "cleanup_stmt", 'e', 2)
117
118/*
119Local variables:
120mode:c
121End:
122*/
123