catch2/include/internal/catch_interfaces_exception.h

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/*
* Created by Phil on 20/04/2011.
* Copyright 2011 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_INTERFACES_EXCEPTION_H_INCLUDED
#define TWOBLUECUBES_CATCH_INTERFACES_EXCEPTION_H_INCLUDED
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#include <string>
#include <vector>
#include "catch_interfaces_registry_hub.h"
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namespace Catch {
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typedef std::string(*exceptionTranslateFunction)();
struct IExceptionTranslator;
typedef std::vector<const IExceptionTranslator*> ExceptionTranslators;
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struct IExceptionTranslator {
virtual ~IExceptionTranslator();
virtual std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const = 0;
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};
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struct IExceptionTranslatorRegistry {
virtual ~IExceptionTranslatorRegistry();
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virtual std::string translateActiveException() const = 0;
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};
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class ExceptionTranslatorRegistrar {
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template<typename T>
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class ExceptionTranslator : public IExceptionTranslator {
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public:
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ExceptionTranslator( std::string(*translateFunction)( T& ) )
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: m_translateFunction( translateFunction )
{}
virtual std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const CATCH_OVERRIDE {
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try {
if( it == itEnd )
throw;
else
return (*it)->translate( it+1, itEnd );
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}
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catch( T& ex ) {
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return m_translateFunction( ex );
}
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}
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protected:
std::string(*m_translateFunction)( T& );
};
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public:
template<typename T>
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ExceptionTranslatorRegistrar( std::string(*translateFunction)( T& ) ) {
getMutableRegistryHub().registerTranslator
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( new ExceptionTranslator<T>( translateFunction ) );
}
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};
}
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///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION2( translatorName, signature ) \
static std::string translatorName( signature ); \
namespace{ Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionRegistrar )( &translatorName ); }\
static std::string translatorName( signature )
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION2( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )
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#endif // TWOBLUECUBES_CATCH_INTERFACES_EXCEPTION_H_INCLUDED