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class NameError
# Extract the name of the missing constant from the exception message.
def missing_name
$1 if /((::)?([A-Z]\w*)(::[A-Z]\w*)*)$/ =~ message
end
# Was this exception raised because the given name was missing?
def missing_name?(name)
if name.is_a? Symbol
last_name = (missing_name || '').split('::').last
last_name == name.to_s
else
missing_name == name.to_s
end
end
end
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