SkSLDiscardStatement.h

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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_DISCARDSTATEMENT
#define SKSL_DISCARDSTATEMENT
 
#include "src/sksl/SkSLPosition.h"
#include "src/sksl/ir/SkSLIRNode.h"
#include "src/sksl/ir/SkSLStatement.h"
 
#include <memory>
#include <string>
 
namespace SkSL {
 
class Context;
 
/**
 * A 'discard' statement.
 */
class DiscardStatement final : public Statement {
public:
    inline static constexpr Kind kIRNodeKind = Kind::kDiscard;
 
    DiscardStatement(Position pos) : INHERITED(pos, kIRNodeKind) {}
 
    // Creates a discard-statement; reports errors via ErrorReporter.
    static std::unique_ptr<Statement> Convert(const Context& context, Position pos);
 
    // Creates a discard-statement; reports errors via SkASSERT.
    static std::unique_ptr<Statement> Make(const Context& context, Position pos);
 
    std::string description() const override {
        return "discard;";
    }
 
private:
    using INHERITED = Statement;
};
 
}  // namespace SkSL
 
#endif