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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_INTLITERAL
#define SKSL_INTLITERAL
#include "SkSLContext.h"
#include "SkSLExpression.h"
namespace SkSL {
/**
* A literal integer.
*/
struct IntLiteral : public Expression {
// FIXME: we will need to revisit this if/when we add full support for both signed and unsigned
// 64-bit integers, but for right now an int64_t will hold every value we care about
IntLiteral(const Context& context, int offset, int64_t value)
: INHERITED(offset, kIntLiteral_Kind, *context.fInt_Type)
, fValue(value) {}
IntLiteral(int offset, int64_t value, const Type* type = nullptr)
: INHERITED(offset, kIntLiteral_Kind, *type)
, fValue(value) {}
String description() const override {
return to_string(fValue);
}
bool hasSideEffects() const override {
return false;
}
bool isConstant() const override {
return true;
}
bool compareConstant(const Context& context, const Expression& other) const override {
IntLiteral& i = (IntLiteral&) other;
return fValue == i.fValue;
}
int coercionCost(const Type& target) const override {
if (target.isUnsigned()) {
return 0;
}
return INHERITED::coercionCost(target);
}
int64_t getConstantInt() const override {
return fValue;
}
std::unique_ptr<Expression> clone() const override {
return std::unique_ptr<Expression>(new IntLiteral(fOffset, fValue, &fType));
}
const int64_t fValue;
typedef Expression INHERITED;
};
} // namespace
#endif
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