Class: MustBe::Proxy

Inherits:
Object show all
Defined in:
lib/must_be/proxy.rb

Instance Method Summary collapse

Constructor Details

#initialize(delegate, assertion = :must) ⇒ Proxy

Returns a new instance of Proxy.



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# File 'lib/must_be/proxy.rb', line 13

def initialize(delegate, assertion = :must)
  unless assertion == :must or assertion == :must_not
    raise ArgumentError,
      "assertion (#{assertion.inspect}) must be :must or :must_not"
  end
  @delegate = delegate
  @assertion = assertion
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(symbol, *args, &block) ⇒ Object 



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# File 'lib/must_be/proxy.rb', line 22

def method_missing(symbol, *args, &block)
  result = @delegate.send(symbol, *args, &block)
  assertion = result ? true : false
  unless assertion == (@assertion == :must)
    @delegate.must_notify(@delegate, "#{@assertion}.#{symbol}", args, 
      block)
  end
  result
end