workbench/libs/mesa/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 <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 }