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Separate exception declaration and implementation
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@pmconrad
pmconrad committed May 28, 2019
1 parent 9069e05 commit 3b3cadf
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119 changes: 68 additions & 51 deletions include/fc/exception/exception.hpp
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Expand Up @@ -5,6 +5,7 @@
*/
#include <fc/log/logger.hpp>
#include <fc/optional.hpp>
#include <fc/utility.hpp>
#include <exception>
#include <functional>
#include <unordered_map>
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}(); \


#define FC_DECLARE_DERIVED_EXCEPTION( TYPE, BASE, CODE, WHAT ) \
#define FC_DECLARE_DERIVED_EXCEPTION( TYPE, BASE, CODE ) \
class TYPE : public BASE \
{ \
public: \
enum code_enum { \
code_value = CODE, \
}; \
explicit TYPE( int64_t code, const std::string& name_value, const std::string& what_value ) \
:BASE( code, name_value, what_value ){} \
explicit TYPE( fc::log_message&& m, int64_t code, const std::string& name_value, const std::string& what_value ) \
:BASE( std::move(m), code, name_value, what_value ){} \
explicit TYPE( fc::log_messages&& m, int64_t code, const std::string& name_value, const std::string& what_value )\
:BASE( std::move(m), code, name_value, what_value ){}\
explicit TYPE( const fc::log_messages& m, int64_t code, const std::string& name_value, const std::string& what_value )\
:BASE( m, code, name_value, what_value ){}\
TYPE( const std::string& what_value, const fc::log_messages& m ) \
:BASE( m, CODE, BOOST_PP_STRINGIZE(TYPE), what_value ){} \
TYPE( fc::log_message&& m ) \
:BASE( std::move(m), CODE, BOOST_PP_STRINGIZE(TYPE), WHAT ){}\
TYPE( fc::log_messages msgs ) \
:BASE( std::move( msgs ), CODE, BOOST_PP_STRINGIZE(TYPE), WHAT ) {} \
TYPE( const TYPE& c ) \
:BASE(c){} \
TYPE( const BASE& c ) \
:BASE(c){} \
TYPE():BASE(CODE, BOOST_PP_STRINGIZE(TYPE), WHAT){}\
explicit TYPE( int64_t code, const std::string& name_value, const std::string& what_value ); \
explicit TYPE( fc::log_message&& m, int64_t code, const std::string& name_value, const std::string& what_value ); \
explicit TYPE( fc::log_messages&& m, int64_t code, const std::string& name_value, const std::string& what_value );\
explicit TYPE( const fc::log_messages& m, int64_t code, const std::string& name_value, const std::string& what_value );\
explicit TYPE( const std::string& what_value, const fc::log_messages& m ); \
explicit TYPE( fc::log_message&& m ); \
explicit TYPE( fc::log_messages msgs ); \
TYPE( TYPE&& c ) = default; \
TYPE( const TYPE& c ); \
TYPE( const BASE& c ); \
explicit TYPE();\
\
virtual std::shared_ptr<fc::exception> dynamic_copy_exception()const\
{ return std::make_shared<TYPE>( *this ); } \
virtual NO_RETURN void dynamic_rethrow_exception()const \
{ if( code() == CODE ) throw *this;\
else fc::exception::dynamic_rethrow_exception(); \
} \
virtual std::shared_ptr<fc::exception> dynamic_copy_exception()const;\
virtual NO_RETURN void dynamic_rethrow_exception()const; \
};

#define FC_DECLARE_EXCEPTION( TYPE, CODE, WHAT ) \
FC_DECLARE_DERIVED_EXCEPTION( TYPE, fc::exception, CODE, WHAT )
#define FC_IMPLEMENT_DERIVED_EXCEPTION( TYPE, BASE, CODE, WHAT ) \
TYPE::TYPE( int64_t code, const std::string& name_value, const std::string& what_value ) \
: BASE( code, name_value, what_value ) {} \
TYPE::TYPE( fc::log_message&& m, int64_t code, const std::string& name_value, const std::string& what_value ) \
: BASE( std::move(m), code, name_value, what_value ) {} \
TYPE::TYPE( fc::log_messages&& m, int64_t code, const std::string& name_value, const std::string& what_value ) \
: BASE( std::move(m), code, name_value, what_value ) {} \
TYPE::TYPE( const fc::log_messages& m, int64_t code, const std::string& name_value, const std::string& what_value ) \
: BASE( m, code, name_value, what_value ) {} \
TYPE::TYPE( const std::string& what_value, const fc::log_messages& m ) \
: BASE( m, CODE, BOOST_PP_STRINGIZE(TYPE), what_value ) {} \
TYPE::TYPE( fc::log_message&& m ) \
: BASE( std::move(m), CODE, BOOST_PP_STRINGIZE(TYPE), WHAT ) {} \
TYPE::TYPE( fc::log_messages msgs ) \
: BASE( std::move( msgs ), CODE, BOOST_PP_STRINGIZE(TYPE), WHAT ) {} \
TYPE::TYPE( const TYPE& c ) : BASE(c) {} \
TYPE::TYPE( const BASE& c ) : BASE(c) {} \
TYPE::TYPE() : BASE(CODE, BOOST_PP_STRINGIZE(TYPE), WHAT) {} \
\
std::shared_ptr<fc::exception> TYPE::dynamic_copy_exception()const \
{ \
return std::make_shared<TYPE>( *this ); \
} \
NO_RETURN void TYPE::dynamic_rethrow_exception()const \
{ \
if( code() == CODE ) throw *this;\
else fc::exception::dynamic_rethrow_exception(); \
}

#define FC_DECLARE_EXCEPTION( TYPE, CODE ) \
FC_DECLARE_DERIVED_EXCEPTION( TYPE, fc::exception, CODE )

#define FC_IMPLEMENT_EXCEPTION( TYPE, CODE, WHAT ) \
FC_IMPLEMENT_DERIVED_EXCEPTION( TYPE, fc::exception, CODE, WHAT )

FC_DECLARE_EXCEPTION( timeout_exception, timeout_exception_code, "Timeout" );
FC_DECLARE_EXCEPTION( file_not_found_exception, file_not_found_exception_code, "File Not Found" );
FC_DECLARE_EXCEPTION( timeout_exception, timeout_exception_code );
FC_DECLARE_EXCEPTION( file_not_found_exception, file_not_found_exception_code );
/**
* @brief report's parse errors
* @brief reports parse errors
*/
FC_DECLARE_EXCEPTION( parse_error_exception, parse_error_exception_code, "Parse Error" );
FC_DECLARE_EXCEPTION( invalid_arg_exception, invalid_arg_exception_code, "Invalid Argument" );
FC_DECLARE_EXCEPTION( parse_error_exception, parse_error_exception_code );
FC_DECLARE_EXCEPTION( invalid_arg_exception, invalid_arg_exception_code );
/**
* @brief reports when a key, guid, or other item is not found.
*/
FC_DECLARE_EXCEPTION( key_not_found_exception, key_not_found_exception_code, "Key Not Found" );
FC_DECLARE_EXCEPTION( bad_cast_exception, bad_cast_exception_code, "Bad Cast" );
FC_DECLARE_EXCEPTION( out_of_range_exception, out_of_range_exception_code, "Out of Range" );
FC_DECLARE_EXCEPTION( method_not_found_exception, method_not_found_exception_code, "Method Not Found" );
FC_DECLARE_EXCEPTION( key_not_found_exception, key_not_found_exception_code );
FC_DECLARE_EXCEPTION( bad_cast_exception, bad_cast_exception_code );
FC_DECLARE_EXCEPTION( out_of_range_exception, out_of_range_exception_code );
FC_DECLARE_EXCEPTION( method_not_found_exception, method_not_found_exception_code );

/** @brief if an operation is unsupported or not valid this may be thrown */
FC_DECLARE_EXCEPTION( invalid_operation_exception,
invalid_operation_exception_code,
"Invalid Operation" );
FC_DECLARE_EXCEPTION( invalid_operation_exception, invalid_operation_exception_code );
/** @brief if an host name can not be resolved this may be thrown */
FC_DECLARE_EXCEPTION( unknown_host_exception,
unknown_host_exception_code,
"Unknown Host" );
FC_DECLARE_EXCEPTION( unknown_host_exception, unknown_host_exception_code );

/**
* @brief used to report a canceled Operation
*/
FC_DECLARE_EXCEPTION( canceled_exception, canceled_exception_code, "Canceled" );
FC_DECLARE_EXCEPTION( canceled_exception, canceled_exception_code );
/**
* @brief used inplace of assert() to report violations of pre conditions.
*/
FC_DECLARE_EXCEPTION( assert_exception, assert_exception_code, "Assert Exception" );
FC_DECLARE_EXCEPTION( eof_exception, eof_exception_code, "End Of File" );
FC_DECLARE_EXCEPTION( null_optional, null_optional_code, "null optional" );
FC_DECLARE_EXCEPTION( aes_exception, aes_error_code, "AES error" );
FC_DECLARE_EXCEPTION( overflow_exception, overflow_code, "Integer Overflow" );
FC_DECLARE_EXCEPTION( underflow_exception, underflow_code, "Integer Underflow" );
FC_DECLARE_EXCEPTION( divide_by_zero_exception, divide_by_zero_code, "Integer Divide By Zero" );
FC_DECLARE_EXCEPTION( assert_exception, assert_exception_code );
FC_DECLARE_EXCEPTION( eof_exception, eof_exception_code );
FC_DECLARE_EXCEPTION( null_optional, null_optional_code );
FC_DECLARE_EXCEPTION( aes_exception, aes_error_code );
FC_DECLARE_EXCEPTION( overflow_exception, overflow_code );
FC_DECLARE_EXCEPTION( underflow_exception, underflow_code );
FC_DECLARE_EXCEPTION( divide_by_zero_exception, divide_by_zero_code );

std::string except_str();

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19 changes: 19 additions & 0 deletions src/exception.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,25 @@

namespace fc
{
FC_IMPLEMENT_EXCEPTION( timeout_exception, timeout_exception_code, "Timeout" )
FC_IMPLEMENT_EXCEPTION( file_not_found_exception, file_not_found_exception_code, "File Not Found" )
FC_IMPLEMENT_EXCEPTION( parse_error_exception, parse_error_exception_code, "Parse Error" )
FC_IMPLEMENT_EXCEPTION( invalid_arg_exception, invalid_arg_exception_code, "Invalid Argument" )
FC_IMPLEMENT_EXCEPTION( key_not_found_exception, key_not_found_exception_code, "Key Not Found" )
FC_IMPLEMENT_EXCEPTION( bad_cast_exception, bad_cast_exception_code, "Bad Cast" )
FC_IMPLEMENT_EXCEPTION( out_of_range_exception, out_of_range_exception_code, "Out of Range" )
FC_IMPLEMENT_EXCEPTION( method_not_found_exception, method_not_found_exception_code, "Method Not Found" );
FC_IMPLEMENT_EXCEPTION( invalid_operation_exception, invalid_operation_exception_code, "Invalid Operation" )
FC_IMPLEMENT_EXCEPTION( unknown_host_exception, unknown_host_exception_code, "Unknown Host" )
FC_IMPLEMENT_EXCEPTION( canceled_exception, canceled_exception_code, "Canceled" )
FC_IMPLEMENT_EXCEPTION( assert_exception, assert_exception_code, "Assert Exception" )
FC_IMPLEMENT_EXCEPTION( eof_exception, eof_exception_code, "End Of File" )
FC_IMPLEMENT_EXCEPTION( null_optional, null_optional_code, "null optional" )
FC_IMPLEMENT_EXCEPTION( aes_exception, aes_error_code, "AES error" )
FC_IMPLEMENT_EXCEPTION( overflow_exception, overflow_code, "Integer Overflow" )
FC_IMPLEMENT_EXCEPTION( underflow_exception, underflow_code, "Integer Underflow" )
FC_IMPLEMENT_EXCEPTION( divide_by_zero_exception, divide_by_zero_code, "Integer Divide By Zero" )

FC_REGISTER_EXCEPTIONS( (timeout_exception)
(file_not_found_exception)
(parse_error_exception)
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