зеркало из https://github.com/github/ruby.git
32 строки
489 B
Ruby
32 строки
489 B
Ruby
require 'delegate'
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class ExtArray < DelegateClass(Array)
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def initialize()
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super([])
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end
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end
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ary = ExtArray.new
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p ary.class
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ary.push 25
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p ary
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ary.push 42
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ary.each {|x| p x}
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foo = Object.new
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def foo.test
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25
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end
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def foo.iter
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yield self
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end
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def foo.error
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raise 'this is OK'
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end
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foo2 = SimpleDelegator.new(foo)
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p foo2
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foo2.instance_eval{print "foo\n"}
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p foo.test == foo2.test # => true
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p foo2.iter{[55,true]} # => true
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foo2.error # raise error!
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