1 /* 2 * Copyright 2016 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SKSL_BINARYEXPRESSION 9 #define SKSL_BINARYEXPRESSION 10 11 #include "SkSLExpression.h" 12 #include "SkSLExpression.h" 13 #include "../SkSLIRGenerator.h" 14 #include "../SkSLToken.h" 15 16 namespace SkSL { 17 18 /** 19 * A binary operation. 20 */ 21 struct BinaryExpression : public Expression { 22 BinaryExpression(Position position, std::unique_ptr<Expression> left, Token::Kind op, 23 std::unique_ptr<Expression> right, const Type& type) 24 : INHERITED(position, kBinary_Kind, type) 25 , fLeft(std::move(left)) 26 , fOperator(op) 27 , fRight(std::move(right)) {} 28 29 virtual std::unique_ptr<Expression> constantPropagate( 30 const IRGenerator& irGenerator, 31 const DefinitionMap& definitions) override { 32 return irGenerator.constantFold(*fLeft, 33 fOperator, 34 *fRight); 35 } 36 37 virtual SkString description() const override { 38 return "(" + fLeft->description() + " " + Token::OperatorName(fOperator) + " " + 39 fRight->description() + ")"; 40 } 41 42 std::unique_ptr<Expression> fLeft; 43 const Token::Kind fOperator; 44 std::unique_ptr<Expression> fRight; 45 46 typedef Expression INHERITED; 47 }; 48 49 } // namespace 50 51 #endif 52
