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1 /*
2  * Copyright © 2010 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21  * DEALINGS IN THE SOFTWARE.
22  */
23 #include <cstdio>
24 #include <cassert>
25 #include "ast.h"
26 
27 const char *
operator_string(enum ast_operators op)28 ast_expression::operator_string(enum ast_operators op)
29 {
30    static const char *const operators[] = {
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    assert((unsigned int)op < sizeof(operators) / sizeof(operators[0]));
77 
78    return operators[op];
79 }
80 
81 
ast_expression_bin(int oper,ast_expression * ex0,ast_expression * ex1)82 ast_expression_bin::ast_expression_bin(int oper, ast_expression *ex0,
83 				       ast_expression *ex1) :
84    ast_expression(oper, ex0, ex1, NULL)
85 {
86    assert((oper >= ast_plus) && (oper <= ast_logic_not));
87 }
88 
89 
90 void
print(void) const91 ast_expression_bin::print(void) const
92 {
93    subexpressions[0]->print();
94    printf("%s ", operator_string(oper));
95    subexpressions[1]->print();
96 }
97