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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_VALIDATESWITCH_H_
#define COMPILER_TRANSLATOR_VALIDATESWITCH_H_
#include "compiler/translator/IntermNode.h"
class TParseContext;
class ValidateSwitch : public TIntermTraverser
{
public:
// Check for errors and output messages any remaining errors on the context.
// Returns true if there are no errors.
static bool validate(TBasicType switchType, TParseContext *context,
TIntermAggregate *statementList, const TSourceLoc &loc);
void visitSymbol(TIntermSymbol *) override;
void visitConstantUnion(TIntermConstantUnion *) override;
bool visitBinary(Visit, TIntermBinary *) override;
bool visitUnary(Visit, TIntermUnary *) override;
bool visitSelection(Visit visit, TIntermSelection *) override;
bool visitSwitch(Visit, TIntermSwitch *) override;
bool visitCase(Visit, TIntermCase *node) override;
bool visitAggregate(Visit, TIntermAggregate *) override;
bool visitLoop(Visit visit, TIntermLoop *) override;
bool visitBranch(Visit, TIntermBranch *) override;
private:
ValidateSwitch(TBasicType switchType, TParseContext *context);
bool validateInternal(const TSourceLoc &loc);
TBasicType mSwitchType;
TParseContext *mContext;
bool mCaseTypeMismatch;
bool mFirstCaseFound;
bool mStatementBeforeCase;
bool mLastStatementWasCase;
int mControlFlowDepth;
bool mCaseInsideControlFlow;
int mDefaultCount;
std::set<int> mCasesSigned;
std::set<unsigned int> mCasesUnsigned;
bool mDuplicateCases;
};
#endif // COMPILER_TRANSLATOR_VALIDATESWITCH_H_
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