Bug #13142 ยป forwardable-constant-doc.patch
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end
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# Takes a hash as its argument. The key is a symbol or an array of
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# symbols. These symbols correspond to method names. The value is
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# symbols. These symbols correspond to method names, instance variable
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# names, or constant names (see def_delegator). The value is
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# the accessor to which the methods will be delegated.
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#
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# :call-seq:
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| ... | ... | |
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# Define +method+ as delegator instance method with an optional
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# alias name +ali+. Method calls to +ali+ will be delegated to
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# +accessor.method+.
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# +accessor.method+. +accessor+ should be a method name, instance
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# variable name, or constant name. Use the full path to the
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# constant if providing the constant name.
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#
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# class MyQueue
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# CONST = 1
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# extend Forwardable
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# attr_reader :queue
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# def initialize
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| ... | ... | |
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# end
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#
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# def_delegator :@queue, :push, :mypush
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# def_delegator 'MyQueue::CONST', :to_i
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# end
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#
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# q = MyQueue.new
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# q.mypush 42
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# q.queue #=> [42]
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# q.push 23 #=> NoMethodError
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# q.to_i #=> 1
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#
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def def_instance_delegator(accessor, method, ali = method)
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gen = Forwardable._delegator_method(self, accessor, method, ali)
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| test/test_forwardable.rb | ||
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require 'forwardable'
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class TestForwardable < Test::Unit::TestCase
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INTEGER = 42
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RECEIVER = BasicObject.new
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RETURNED1 = BasicObject.new
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RETURNED2 = BasicObject.new
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| ... | ... | |
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end
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end
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def test_def_instance_delegator_constant
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%i[def_delegator def_instance_delegator].each do |m|
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cls = forwardable_class do
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__send__ m, 'TestForwardable::INTEGER', :to_i
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end
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assert_equal 42, cls.new.to_i
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end
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end
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def test_def_instance_delegator_using_args_method_as_receiver
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%i[def_delegator def_instance_delegator].each do |m|
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cls = forwardable_class(
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