49 lines
1.1 KiB
Ruby
49 lines
1.1 KiB
Ruby
# :nodoc:
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#
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# Author:: Nathaniel Talbott.
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# Copyright:: Copyright (c) 2000-2002 Nathaniel Talbott. All rights reserved.
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# License:: Ruby license.
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module Test
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module Unit
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module Util
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# Allows the storage of a Proc passed through '&' in a
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# hash.
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#
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# Note: this may be inefficient, since the hash being
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# used is not necessarily very good. In Observable,
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# efficiency is not too important, since the hash is
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# only accessed when adding and removing listeners,
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# not when notifying.
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class ProcWrapper
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# Creates a new wrapper for a_proc.
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def initialize(a_proc)
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@a_proc = a_proc
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@hash = a_proc.inspect.sub(/^(#<#{a_proc.class}:)/){''}.sub(/(>)$/){''}.hex
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end
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def hash # :nodoc:
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return @hash
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end
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def ==(other) # :nodoc:
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case(other)
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when ProcWrapper
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return @a_proc == other.to_proc
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else
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return super
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end
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end
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alias :eql? :==
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def to_proc # :nodoc:
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return @a_proc
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end
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end
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end
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end
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end
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