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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_BINARYEXPRESSION
#define SKSL_BINARYEXPRESSION
#include "SkSLExpression.h"
#include "SkSLExpression.h"
#include "../SkSLIRGenerator.h"
#include "../SkSLLexer.h"
namespace SkSL {
/**
* A binary operation.
*/
struct BinaryExpression : public Expression {
BinaryExpression(int offset, std::unique_ptr<Expression> left, Token::Kind op,
std::unique_ptr<Expression> right, const Type& type)
: INHERITED(offset, kBinary_Kind, type)
, fLeft(std::move(left))
, fOperator(op)
, fRight(std::move(right)) {}
std::unique_ptr<Expression> constantPropagate(const IRGenerator& irGenerator,
const DefinitionMap& definitions) override {
return irGenerator.constantFold(*fLeft,
fOperator,
*fRight);
}
bool hasSideEffects() const override {
return Compiler::IsAssignment(fOperator) || fLeft->hasSideEffects() ||
fRight->hasSideEffects();
}
std::unique_ptr<Expression> clone() const override {
return std::unique_ptr<Expression>(new BinaryExpression(fOffset, fLeft->clone(), fOperator,
fRight->clone(), fType));
}
String description() const override {
return "(" + fLeft->description() + " " + Compiler::OperatorName(fOperator) + " " +
fRight->description() + ")";
}
std::unique_ptr<Expression> fLeft;
const Token::Kind fOperator;
std::unique_ptr<Expression> fRight;
typedef Expression INHERITED;
};
} // namespace
#endif
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