src/glsl/ast_expr.cpp

   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 *
  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
  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
  91 ast_expression_bin::print(void) const
  92 {
  93    subexpressions[0]->print();
  94    printf("%s ", operator_string(oper));
  95    subexpressions[1]->print();
  96 }