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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_FLOATLITERAL
#define SKSL_FLOATLITERAL
#include "src/sksl/SkSLContext.h"
#include "src/sksl/ir/SkSLExpression.h"
namespace SkSL {
/**
* A literal floating point number.
*/
struct FloatLiteral : public Expression {
FloatLiteral(const Context& context, int offset, double value)
: INHERITED(offset, kFloatLiteral_Kind, *context.fFloatLiteral_Type)
, fValue(value) {}
FloatLiteral(int offset, double value, const Type* type)
: INHERITED(offset, kFloatLiteral_Kind, *type)
, fValue(value) {}
String description() const override {
return to_string(fValue);
}
bool hasProperty(Property property) const override {
return false;
}
bool isConstant() const override {
return true;
}
int coercionCost(const Type& target) const override {
if (target.isFloat()) {
return 0;
}
return INHERITED::coercionCost(target);
}
bool compareConstant(const Context& context, const Expression& other) const override {
FloatLiteral& f = (FloatLiteral&) other;
return fValue == f.fValue;
}
double getConstantFloat() const override {
return fValue;
}
int nodeCount() const override {
return 1;
}
std::unique_ptr<Expression> clone() const override {
return std::unique_ptr<Expression>(new FloatLiteral(fOffset, fValue, &fType));
}
const double fValue;
typedef Expression INHERITED;
};
} // namespace
#endif