123456789_123456789_123456789_123456789_123456789_

Exception: StandardError

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/exist

Class Attribute Summary

::Exception - Inherited

.to_tty?

Returns true if exception messages will be sent to a tty.

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 ::Exception object, optionally passing in a message.

Instance Method Summary

::Exception - Inherited

#==

Equality—If obj is not an ::Exception, returns false.
#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.
#detailed_message

Processes a string returned by #message.
#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 exception.to_s.
#set_backtrace

Sets the backtrace information associated with exc.
#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