Module: Jackbox::Examples::DX

Defined in:
lib/jackbox/examples/dx.rb

Overview

Debugging Extras

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.tracer ⇒ Object

Returns the value of attribute tracer.



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# File 'lib/jackbox/examples/dx.rb', line 124

def tracer
  @tracer
end

Class Method Details

.wrap(klass, method) ⇒ Object 



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# File 'lib/jackbox/examples/dx.rb', line 145

def wrap(klass, method)
	klass.instance_eval do
		method_object = instance_method(method) 

		define_method(method) do |*args, &block|
			DX.tracer = Fiber.new do |binding|
				Fiber.yield
				lnames, inames = binding.eval("local_variables"), binding.eval("instance_variables")
				lvars, ivars = [lnames, inames].map{ |names| 
					names.inject({}) { |vars, name| vars[name] = binding.eval(name.to_s) and vars } rescue nil
				}
				@_trace = %{  -local variables: #{lvars}\n  -instance variables: #{ivars}\n  }
			end
			result = method_object.bind(self).call(*args, &block) 
		end

	end
end