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
>
8 This file is part of GCC.
10 GCC is free software
; you can redistribute it and
/or modify it under
11 the terms of the GNU General Public License as published by the Free
12 Software Foundation
; either version
2, or (at your option
) any later
15 GCC is distributed in the hope that it will be useful
, but WITHOUT ANY
16 WARRANTY
; without even the implied warranty of MERCHANTABILITY or
17 FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 You should have received a copy of the GNU General Public License
21 along with GCC
; see the file COPYING. If not
, write to the Free
22 Software Foundation
, 59 Temple Place
- Suite
330, Boston
, MA
25 /* Tree nodes relevant to both C and C
++. These were originally in
26 cp
-tree.def in the cp subdir.
*/
28 /* A node to remember a source position.
*/
29 DEFTREECODE (SRCLOC
, "srcloc", 'x', 2)
31 DEFTREECODE (SIZEOF_EXPR
, "sizeof_expr", '1', 1)
32 DEFTREECODE (ARROW_EXPR
, "arrow_expr", 'e', 1)
33 DEFTREECODE (ALIGNOF_EXPR
, "alignof_expr", '1', 1)
35 /* Used to represent an expression statement. Use `EXPR_STMT_EXPR
' to
36 obtain the expression. */
37 DEFTREECODE (EXPR_STMT, "expr_stmt", 'e
', 1)
39 /* Used to represent a brace-enclosed block. The operand is
41 DEFTREECODE (COMPOUND_STMT, "compound_stmt", 'e
', 1)
43 /* Used to represent a local declaration. The operand is
45 DEFTREECODE (DECL_STMT, "decl_stmt", 'e
', 1)
47 /* Represents an 'if
' statement. The operands are IF_COND,
48 THEN_CLAUSE, and ELSE_CLAUSE, respectively. */
49 DEFTREECODE (IF_STMT, "if_stmt", 'e
', 3)
51 /* Used to represent a `for' statement. The operands are
52 FOR_INIT_STMT
, FOR_COND
, FOR_EXPR
, and FOR_BODY
, respectively.
*/
53 DEFTREECODE (FOR_STMT
, "for_stmt", 'e', 4)
55 /* Used to represent a
'while' statement. The operands are WHILE_COND
56 and WHILE_BODY
, respectively.
*/
57 DEFTREECODE (WHILE_STMT
, "while_stmt", 'e', 2)
59 /* Used to represent a
'do' statement. The operands are DO_BODY and
60 DO_COND
, respectively.
*/
61 DEFTREECODE (DO_STMT
, "do_stmt", 'e', 2)
63 /* Used to represent a
'return' statement. The operand is
65 DEFTREECODE (RETURN_STMT
, "return_stmt", 'e', 1)
67 /* Used to represent a
'break' statement.
*/
68 DEFTREECODE (BREAK_STMT
, "break_stmt", 'e', 0)
70 /* Used to represent a
'continue' statement.
*/
71 DEFTREECODE (CONTINUE_STMT
, "continue_stmt", 'e', 0)
73 /* Used to represent a
'switch' statement. The operands are
74 SWITCH_COND and SWITCH_BODY
, respectively.
*/
75 DEFTREECODE (SWITCH_STMT
, "switch_stmt", 'e', 2)
77 /* Used to represent a
'goto' statement. The operand is GOTO_DESTINATION.
*/
78 DEFTREECODE (GOTO_STMT
, "goto_stmt", 'e', 1)
80 /* Used to represent a
'label' statement. The operand is a LABEL_DECL
81 and can be obtained through the macro LABEL_STMT_LABEL.
*/
82 DEFTREECODE (LABEL_STMT
, "label_stmt", 'e', 1)
84 /* Used to represent an inline assembly statement.
*/
85 DEFTREECODE (ASM_STMT
, "asm_stmt", 'e', 5)
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.
*/
93 DEFTREECODE (SCOPE_STMT
, "scope_stmt", 'e', 1)
95 /* Used to represent a CASE_LABEL. The operands are CASE_LOW and
96 CASE_HIGH
, respectively. If CASE_LOW is NULL_TREE
, the label is a
97 'default' label. If CASE_HIGH is NULL_TREE
, the label is a normal case
98 label. The CASE_LABEL_DECL is a LABEL_DECL for this node.
*/
99 DEFTREECODE (CASE_LABEL
, "case_label", 'e', 3)
101 /* A STMT_EXPR represents a statement
-expression. The
102 STMT_EXPR_STMT is the statement given by the expression.
*/
103 DEFTREECODE (STMT_EXPR
, "stmt_expr", 'e', 1)
105 /* A COMPOUND_LITERAL_EXPR represents a C99 compound literal. The
106 COMPOUND_LITERAL_EXPR_DECL_STMT is the a DECL_STMT containing the decl
107 for the anonymous object represented by the COMPOUND_LITERAL
;
108 the DECL_INITIAL of that decl is the CONSTRUCTOR that initializes
109 the compound literal.
*/
110 DEFTREECODE (COMPOUND_LITERAL_EXPR
, "compound_literal_expr", 'e', 1)