// error.h+
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// +
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// Copyright (c) 2008 - 2010 Accenture. All rights reserved.+
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// This component and the accompanying materials are made available+
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// under the terms of the "Eclipse Public License v1.0"+
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// which accompanies this distribution, and is available+
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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// +
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// Initial Contributors:+
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// Accenture - Initial contribution+
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//+
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#ifndef __ERROR_H__+
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#define __ERROR_H__+
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#include <e32base.h>+
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+
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class RIoWriteHandle;+
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namespace IoUtils+
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	{+
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	class CEnvironment;+
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	}+
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+
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class TError+
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	{+
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public:+
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	enum TReason+
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		{+
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		EUnknown,+
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		EFailedToCreatePipeLine,+
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		EFailedToConstructCommand,+
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		EFailedToRunCommand,+
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		EFailedToSetChildErrorVar,+
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		ECommandError,+
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		EFailedToSetScriptLineVar,+
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		};+
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public:+
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	TError(RIoWriteHandle& aStderr, IoUtils::CEnvironment& aEnv);+
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	void Set(const TError& aError);+
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	void Set(TInt aError, TReason aReason);+
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	void Set(TInt aError, TReason aReason, TRefByValue<const TDesC> aFmt, ...);+
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	void Report() const;+
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	TInt Error() const;+
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	TReason Reason() const;+
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	const TDesC* Context() const;+
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	const TDesC& ScriptFileName() const;+
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	TInt ScriptLineNumber() const;+
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private:+
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	void Format(TRefByValue<const TDesC> aFmt, ...);+
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	void FormatList(TRefByValue<const TDesC> aFmt, VA_LIST& aList);+
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	void LogIfRequired(TInt aError, TReason aReason, TRefByValue<const TDesC> aFmt, ...);+
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	void LogListIfRequired(TInt aError, TReason aReason, TRefByValue<const TDesC> aFmt, VA_LIST& aList);+
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	const TDesC* StringifyReason(TReason aReason) const;+
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	TBool Verbose() const;+
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	void NewLine() const;+
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	void PrintError() const;+
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	void FormatError(TRefByValue<const TDesC> aFmt, ...) const;+
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private:+
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	RIoWriteHandle* iStderr;+
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	IoUtils::CEnvironment* iEnv;+
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	TInt iError;+
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	TReason iReason;+
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	TBool iSet;+
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	TBuf<256> iContext;+
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	mutable TBuf<512> iScratch;+
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	TFileName iScriptFileName;+
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	TInt iScriptLineNumber;+
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	};+
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+
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+
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#endif // __ERROR_H__+
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