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Versions: 31
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Stored size: 916 Bytes
Contents
# == NestedError
#
# An exception class that records the cause of another error. Useful when you
# need to raise a general kind of error, yet still be able to determine the
# underlying cause.
#
# Example:
#
# class MyGeneralError < NestedError; end
#
# begin
# begin
# # Cause a specific error
# 1/0 # Divide by zero error
# rescue Exception => e
# # Wrap the specific error in a general, nested error
# raise MyGeneralError("Something bad happened!", e)
# end
# rescue MyGeneralError => e
# # Intercept the nested error and inspect the cause
# puts e.message # => "Something bad happened!"
# puts e.cause.message # => "divided by 0"
# end
class NestedError < StandardError
attr_accessor :cause
# Create a NestedObject with a +message+ String and a +cause+ Exception.
def initialize(message, cause)
self.cause = cause
super(message)
end
end
Version data entries
31 entries across 31 versions & 2 rubygems