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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_POSTFIXEXPRESSION
#define SKSL_POSTFIXEXPRESSION
#include "include/private/SkSLIRNode.h"
#include "include/sksl/SkSLOperator.h"
#include "include/sksl/SkSLPosition.h"
#include "src/sksl/ir/SkSLExpression.h"
#include <memory>
#include <string>
#include <utility>
namespace SkSL {
class Context;
/**
* An expression modified by a unary operator appearing after it, such as 'i++'.
*/
class PostfixExpression final : public Expression {
public:
inline static constexpr Kind kIRNodeKind = Kind::kPostfix;
PostfixExpression(Position pos, std::unique_ptr<Expression> operand, Operator op)
: INHERITED(pos, kIRNodeKind, &operand->type())
, fOperand(std::move(operand))
, fOperator(op) {}
// Creates an SkSL postfix expression; uses the ErrorReporter to report errors.
static std::unique_ptr<Expression> Convert(const Context& context,
Position pos,
std::unique_ptr<Expression> base,
Operator op);
// Creates an SkSL postfix expression; reports errors via ASSERT.
static std::unique_ptr<Expression> Make(const Context& context,
Position pos,
std::unique_ptr<Expression> base,
Operator op);
Operator getOperator() const {
return fOperator;
}
std::unique_ptr<Expression>& operand() {
return fOperand;
}
const std::unique_ptr<Expression>& operand() const {
return fOperand;
}
std::unique_ptr<Expression> clone(Position pos) const override {
return std::make_unique<PostfixExpression>(pos, this->operand()->clone(),
this->getOperator());
}
std::string description(OperatorPrecedence parentPrecedence) const override;
private:
std::unique_ptr<Expression> fOperand;
Operator fOperator;
using INHERITED = Expression;
};
} // namespace SkSL
#endif