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# File 'lib/alib-0.5.0/main.rb', line 230
def required_arguments(*list)
@required_arguments ||= []
list.flatten.each do |arg|
return(optional_argument(arg)) if Hash === arg
unless instance_methods.include? "#{ arg }"
module_eval <<-code
def #{ arg }(*__list)
if __list.empty?
@#{ arg }
else
send('#{ arg }=', *__list)
end
end
def #{ arg }=(__arg, *__list)
if __list.empty?
@#{ arg } = __arg
else
@#{ arg } = ([__arg] + __list)
end
end
def #{ arg }?
defined? @#{ arg } and @#{ arg }
end
code
end
@required_arguments << "#{ arg }"
end
@required_arguments
end
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