mirror of
https://github.com/cookiengineer/audacity
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82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/*!
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@file InconsistencyException.h
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@brief MessageBoxException for violation of preconditions or assertions
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Created by Paul Licameli on 11/27/16.
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*/
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#ifndef __AUDACITY_INCONSISTENCY_EXCEPTION__
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#define __AUDACITY_INCONSISTENCY_EXCEPTION__
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#include "AudacityException.h"
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//! Exception that should be impossible in production, thrown only from provably unreachable places
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/*! Some errors that formerly were assertion violations now throw exceptions,
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even in production code. These may be violations of function preconditions
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or the results of logical errors internal to functions. These conditions
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are supposed to be deducible statically as never happening.
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The error message identifies source file and line number, possibly the function too (depending on
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the compiler), and suggests that the user inform the development team.
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*/
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class AUDACITY_DLL_API InconsistencyException final : public MessageBoxException
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{
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public:
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InconsistencyException ()
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: MessageBoxException{ ExceptionType::Internal, XO ("Internal Error") }
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{}
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//! Don't call this directly but use @ref CONSTRUCT_INCONSISTENCY_EXCEPTION or @ref THROW_INCONSISTENCY_EXCEPTION
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explicit InconsistencyException(
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const char *fn, //!< file name supplied by preprocessor
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const char *f, //!< function name supplied by preprocessor
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unsigned l //!< line number supplied by preprocessor
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)
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: MessageBoxException { ExceptionType::Internal, XO("Internal Error") }
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, func { fn }, file { f }, line { l }
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{}
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InconsistencyException(InconsistencyException&& that)
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: MessageBoxException(std::move(that))
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, func{ that.func }
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, file{ that.file }
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, line{ that.line }
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{}
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~InconsistencyException() override;
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unsigned GetLine() const { return line; }
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private:
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// Format a default, internationalized error message for this exception.
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TranslatableString ErrorMessage() const override;
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const char *func {};
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const char *file {};
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unsigned line {};
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};
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#ifdef __func__
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#define CONSTRUCT_INCONSISTENCY_EXCEPTION \
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InconsistencyException( __func__, __FILE__ , __LINE__ )
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#else
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/*! @def CONSTRUCT_INCONSISTENCY_EXCEPTION
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@brief Construct InconsistencyException, using C++ preprocessor to identify the source code location
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For cases where the exception object is not immediately thrown */
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#define CONSTRUCT_INCONSISTENCY_EXCEPTION \
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InconsistencyException( "", __FILE__ , __LINE__ )
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#endif
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/*! @def THROW_INCONSISTENCY_EXCEPTION
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@brief Throw InconsistencyException, using C++ preprocessor to identify the source code location
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*/
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#define THROW_INCONSISTENCY_EXCEPTION throw CONSTRUCT_INCONSISTENCY_EXCEPTION
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#endif
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