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 DEFTREECODE (SIZEOF_EXPR
, "sizeof_expr", '1', 1)
29 DEFTREECODE (ARROW_EXPR
, "arrow_expr", 'e', 1)
30 DEFTREECODE (ALIGNOF_EXPR
, "alignof_expr", '1', 1)
32 /* Used to represent an expression statement. Use `EXPR_STMT_EXPR
' to
33 obtain the expression. */
34 DEFTREECODE (EXPR_STMT, "expr_stmt", 'e
', 1)
36 /* Used to represent a brace-enclosed block. The operand is
38 DEFTREECODE (COMPOUND_STMT, "compound_stmt", 'e
', 1)
40 /* Used to represent a local declaration. The operand is
42 DEFTREECODE (DECL_STMT, "decl_stmt", 'e
', 1)
44 /* Represents an 'if
' statement. The operands are IF_COND,
45 THEN_CLAUSE, and ELSE_CLAUSE, respectively. */
46 DEFTREECODE (IF_STMT, "if_stmt", 'e
', 3)
48 /* Used to represent a `for' statement. The operands are
49 FOR_INIT_STMT
, FOR_COND
, FOR_EXPR
, and FOR_BODY
, respectively.
*/
50 DEFTREECODE (FOR_STMT
, "for_stmt", 'e', 4)
52 /* Used to represent a
'while' statement. The operands are WHILE_COND
53 and WHILE_BODY
, respectively.
*/
54 DEFTREECODE (WHILE_STMT
, "while_stmt", 'e', 2)
56 /* Used to represent a
'do' statement. The operands are DO_BODY and
57 DO_COND
, respectively.
*/
58 DEFTREECODE (DO_STMT
, "do_stmt", 'e', 2)
60 /* Used to represent a
'return' statement. The operand is
62 DEFTREECODE (RETURN_STMT
, "return_stmt", 'e', 1)
64 /* Used to represent a
'break' statement.
*/
65 DEFTREECODE (BREAK_STMT
, "break_stmt", 'e', 0)
67 /* Used to represent a
'continue' statement.
*/
68 DEFTREECODE (CONTINUE_STMT
, "continue_stmt", 'e', 0)
70 /* Used to represent a
'switch' statement. The operands are
71 SWITCH_COND
, SWITCH_BODY and SWITCH_TYPE
, respectively.
*/
72 DEFTREECODE (SWITCH_STMT
, "switch_stmt", 'e', 3)
74 /* Used to represent a
'goto' statement. The operand is GOTO_DESTINATION.
*/
75 DEFTREECODE (GOTO_STMT
, "goto_stmt", 'e', 1)
77 /* Used to represent a
'label' statement. The operand is a LABEL_DECL
78 and can be obtained through the macro LABEL_STMT_LABEL.
*/
79 DEFTREECODE (LABEL_STMT
, "label_stmt", 'e', 1)
81 /* Used to represent an inline assembly statement.
*/
82 DEFTREECODE (ASM_STMT
, "asm_stmt", 'e', 5)
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.
*/
90 DEFTREECODE (SCOPE_STMT
, "scope_stmt", 'e', 1)
92 /* A FILE_STMT marks the spot where a function changes files. It has no
93 other semantics. FILE_STMT_FILENAME gives the name.
*/
94 DEFTREECODE (FILE_STMT
, "file_stmt", 'e', 1)
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.
*/
100 DEFTREECODE (CASE_LABEL
, "case_label", 'e', 3)
102 /* A STMT_EXPR represents a statement
-expression. The
103 STMT_EXPR_STMT is the statement given by the expression.
*/
104 DEFTREECODE (STMT_EXPR
, "stmt_expr", 'e', 1)
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.
*/
111 DEFTREECODE (COMPOUND_LITERAL_EXPR
, "compound_literal_expr", 'e', 1)
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.
*/
116 DEFTREECODE (CLEANUP_STMT
, "cleanup_stmt", 'e', 2)