class Exception
Overview
Represents errors that occur during application execution.
Exception and it's descendants are used to communicate between raise and
rescue statements in begin ... end blocks.
Exception objects carry information about the exception – its type (the
exception’s class name), an optional descriptive string, and
optional traceback information.
Exception subclasses may add additional information.
Direct Known Subclasses
- ArgumentError
- Base64::Error
- Channel::ClosedError
- Concurrent::CanceledError
- Crypto::Bcrypt::Error
- CSV::Error
- Debug::ELF::Error
- DivisionByZero
- Enumerable::EmptyError
- Errno
- Flate::Error
- Gzip::Error
- HTTP::FormData::Error
- HTTP::Multipart::Error
- IndexError
- InvalidByteSequenceError
- IO::Error
- IO::Timeout
- JSON::Error
- KeyError
- OAuth2::Error
- OAuth::Error
- OpenSSL::Error
- OptionParser::Exception
- Socket::Error
- Time::Format::Error
- TypeCastError
- URI::Error
- XML::Error
- YAML::Error
- Zip::Error
- Zlib::Error
Defined in:
exception.crConstructors
Instance Method Summary
-
#backtrace
Returns any backtrace associated with the exception.
-
#backtrace?
Returns any backtrace associated with the exception if the call stack exists.
- #callstack : CallStack?
- #callstack=(callstack : CallStack?)
-
#cause : Exception?
Returns the previous exception at the time this exception was raised.
- #inspect_with_backtrace(io : IO)
- #inspect_with_backtrace
- #message : String?
- #to_s(io : IO)
Instance methods inherited from class Reference
==(other : self)==(other) ==, dup dup, hash hash, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference)
same?(other : Nil) same?, to_s(io : IO) : Nil to_s
Constructor methods inherited from class Reference
new
new
Instance methods inherited from class Object
!=(other)
!=,
!~(other)
!~,
==(other)
==,
===(other : JSON::Any)===(other : YAML::Any)
===(other) ===, =~(other) =~, class class, dup dup, hash hash, inspect(io : IO)
inspect inspect, itself itself, not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, tap(&block) tap, to_json(io : IO)
to_json to_json, to_pretty_json(indent : String = " ")
to_pretty_json(io : IO, indent : String = " ") to_pretty_json, to_s
to_s(io : IO) to_s, to_yaml(io : IO)
to_yaml to_yaml, try(&block) try, unsafe_as(type : T.class) forall T unsafe_as
Constructor methods inherited from class Object
from_json(string_or_io, root : String) : selffrom_json(string_or_io) : self from_json, from_yaml(string_or_io) : self from_yaml
Constructor Detail
Instance Method Detail
Returns any backtrace associated with the exception. The backtrace is an array of strings, each containing “0xAddress: Function at File Line Column”.
Returns any backtrace associated with the exception if the call stack exists. The backtrace is an array of strings, each containing “0xAddress: Function at File Line Column”.
Returns the previous exception at the time this exception was raised. This is useful for wrapping exceptions and retaining the original exception information.