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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 <assert.h>
     24 #include "ast.h"
     25 
     26 const char *
     27 ast_expression::operator_string(enum ast_operators op)
     28 {
     29    static const char *const operators[] = {
     30       "=",
     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    assert((unsigned int)op < sizeof(operators) / sizeof(operators[0]));
     76 
     77    return operators[op];
     78 }
     79 
     80 
     81 ast_expression_bin::ast_expression_bin(int oper, ast_expression *ex0,
     82 				       ast_expression *ex1) :
     83    ast_expression(oper, ex0, ex1, NULL)
     84 {
     85    assert((oper >= ast_plus) && (oper <= ast_logic_not));
     86 }
     87 
     88 
     89 void
     90 ast_expression_bin::print(void) const
     91 {
     92    subexpressions[0]->print();
     93    printf("%s ", operator_string(oper));
     94    subexpressions[1]->print();
     95 }
     96