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 using std::printf;
  28
  29 const char *
  30 ast_expression::operator_string(enum ast_operators op)
  31 {
  32    static const char *const operators[] = {
  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    };
  77
  78    assert((unsigned int)op < sizeof(operators) / sizeof(operators[0]));
  79
  80    return operators[op];
  81 }
  82
  83
  84 ast_expression_bin::ast_expression_bin(int oper, ast_expression *ex0,
  85                                        ast_expression *ex1) :
  86    ast_expression(oper, ex0, ex1, NULL)
  87 {
  88    assert((oper >= ast_plus) && (oper <= ast_logic_not));
  89 }
  90
  91
  92 void
  93 ast_expression_bin::print(void) const
  94 {
  95    subexpressions[0]->print();
  96    printf("%s ", operator_string(oper));
  97    subexpressions[1]->print();
  98 }