Type-erased, copyable storage for a registered exception value. More...

#include <querygraph.hpp>

Public Member Functions
void	throw_copy () const
	Throw a copy of the stored concrete exception.

std::exception_ptr	make_exception_ptr () const
	Return an `exception_ptr` holding a copy of the error.

std::string	message () const
	Return the stored exception's human-readable message.

canonical_error_result_data	dump () const
	Convert the error to its serializable dump representation.

Public Attributes
tsig	m_error_typesig {}
	Type signature of the concrete exception type.

std::any	m_error_value
	Type-erased concrete exception value.

std::function< void(std::any const &) >	m_throw_copy
	Operation that throws a copy of `m_error_value`.

std::function< std::vector< std::byte >(std::any const &) >	m_serialize
	Operation that serializes `m_error_value`.

std::function< std::string(std::any const &) >	m_message
	Operation that obtains the concrete exception message.

Detailed Description

Type-erased, copyable storage for a registered exception value.

Canonical storage retains the concrete error, operations for copying it back into an exception, and operations for serializing and displaying it. Instances are normally created with make_canonical_error_storage().

Definition at line 396 of file querygraph.hpp.