method

def_instance_delegator

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What's this?

def_instance_delegator(accessor, method, ali = method) public

Defines a method method which delegates to obj (i.e. it calls the method of the same name in obj). If new_name is provided, it is used as the name for the delegate method.

See the examples at Forwardable and forwardable.rb.

Show source

# File lib/forwardable.rb, line 143
  def def_instance_delegator(accessor, method, ali = method)
    accessor = accessor.id2name if accessor.kind_of?(Integer)
    method = method.id2name if method.kind_of?(Integer)
    ali = ali.id2name if ali.kind_of?(Integer)

    module_eval("def \#{ali}(*args, &block)\nbegin\n\#{accessor}.__send__(:\#{method}, *args, &block)\nrescue Exception\n$@.delete_if{|s| /^\\\\(__FORWARDABLE__\\\\):/ =~ s} unless Forwardable::debug\nKernel::raise\nend\nend\n", "(__FORWARDABLE__)", 1)
  end

def_instance_delegator

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