Exception: StandardError
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Subclasses:
ArgumentError, ClosedQueueError, EOFError, EncodingError, FiberError, FloatDomainError, FrozenError, IOError, IndexError, KeyError, LocalJumpError, NameError, NoMatchingPatternError, NoMethodError, RangeError, RegexpError, RuntimeError, StopIteration, SystemCallError, ThreadError, TypeError, UncaughtThrowError, ZeroDivisionError, Encoding::CompatibilityError, Encoding::ConverterNotFoundError, Encoding::InvalidByteSequenceError, Encoding::UndefinedConversionError, Math::DomainError, Ractor::ClosedError, Ractor::Error, Ractor::IsolationError, Ractor::MovedError, Ractor::RemoteError, Ractor::UnsafeError
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| Super Chains via Extension / Inclusion / Inheritance | |
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Class Chain:
self,
::Exception
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Instance Chain:
self,
::Exception
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| Inherits: | Exception |
| Defined in: | error.c |
Overview
The most standard error types are subclasses of StandardError. A rescue clause without an explicit ::Exception class will rescue all StandardErrors (and only those).
def foo
raise "Oups"
end
foo rescue "Hello" #=> "Hello"On the other hand:
require 'does/not/exist' rescue "Hi"raises the exception:
LoadError: no such file to load -- does/not/existClass Attribute Summary
::Exception - Inherited
| .to_tty? | Returns |
Class Method Summary
::Exception - Inherited
| .exception | With no argument, or if the argument is the same as the receiver, return the receiver. |
| .new | Construct a new |
Instance Method Summary
::Exception - Inherited
| #== | Equality—If obj is not an |
| #backtrace | Returns any backtrace associated with the exception. |
| #backtrace_locations | Returns any backtrace associated with the exception. |
| #cause | Returns the previous exception ($!) at the time this exception was raised. |
| #exception | With no argument, or if the argument is the same as the receiver, return the receiver. |
| #full_message | Returns formatted string of exception. |
| #inspect | Return this exception’s class name and message. |
| #message | Returns the result of invoking |
| #set_backtrace | Sets the backtrace information associated with |
| #to_s | Returns exception’s message (or the name of the exception if no message is set). |
Constructor Details
This class inherits a constructor from Exception