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require "naught/null_class_builder/command"
module Naught
class NullClassBuilder
module Commands
# Records the source location where a null object was created
#
# @api private
class Traceable < Command
# Install the traceable initializer
# @return [void]
# @api private
def call
defer_prepend_module do
attr_reader :__file__, :__line__
define_method(:initialize) do |options = {}|
backtrace = options.fetch(:caller) { Kernel.caller(3) }
caller_data = Naught::CallerInfo.parse(backtrace[0])
@__file__ = caller_data[:path]
@__line__ = caller_data[:lineno]
super(options)
end
end
end
end
end
end
end
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