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class NameError
# Extract the name of the missing constant from the exception message.
#
# begin
# HelloWorld
# rescue NameError => e
# e.missing_name
# end
# # => "HelloWorld"
def missing_name
if /undefined local variable or method/ !~ message
$1 if /((::)?([A-Z]\w*)(::[A-Z]\w*)*)$/ =~ message
end
end
# Was this exception raised because the given name was missing?
#
# begin
# HelloWorld
# rescue NameError => e
# e.missing_name?("HelloWorld")
# end
# # => true
def missing_name?(name)
if name.is_a? Symbol
self.name == name
else
missing_name == name.to_s
end
end
end
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