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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.