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//
// Copyright (c) 2002-2015 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#ifndef COMPILER_TRANSLATOR_REMOVESWITCHFALLTHROUGH_H_
#define COMPILER_TRANSLATOR_REMOVESWITCHFALLTHROUGH_H_
#include "compiler/translator/IntermNode.h"
namespace sh
{
class RemoveSwitchFallThrough : public TIntermTraverser
{
public:
// When given a statementList from a switch AST node, return an updated
// statementList that has fall-through removed.
static TIntermBlock *removeFallThrough(TIntermBlock *statementList);
private:
RemoveSwitchFallThrough(TIntermBlock *statementList);
void visitSymbol(TIntermSymbol *node) override;
void visitConstantUnion(TIntermConstantUnion *node) override;
bool visitBinary(Visit, TIntermBinary *node) override;
bool visitUnary(Visit, TIntermUnary *node) override;
bool visitTernary(Visit visit, TIntermTernary *node) override;
bool visitIfElse(Visit visit, TIntermIfElse *node) override;
bool visitSwitch(Visit, TIntermSwitch *node) override;
bool visitCase(Visit, TIntermCase *node) override;
bool visitAggregate(Visit, TIntermAggregate *node) override;
bool visitBlock(Visit, TIntermBlock *node) override;
bool visitLoop(Visit, TIntermLoop *node) override;
bool visitBranch(Visit, TIntermBranch *node) override;
void outputSequence(TIntermSequence *sequence, size_t startIndex);
void handlePreviousCase();
TIntermBlock *mStatementList;
TIntermBlock *mStatementListOut;
bool mLastStatementWasBreak;
TIntermBlock *mPreviousCase;
std::vector<TIntermBlock *> mCasesSharingBreak;
};
} // namespace sh
#endif // COMPILER_TRANSLATOR_REMOVESWITCHFALLTHROUGH_H_
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