src/sksl/ir/SkSLIntLiteral.h

/*
 * 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, Position position, int64_t value, const Type* type = nullptr)
    : INHERITED(position, kIntLiteral_Kind, type ? *type : *context.fInt_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;
    }

    const int64_t fValue;

    typedef Expression INHERITED;
};

} // namespace

#endif