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@tpope
Forked from nakajima/blank_context.rb
Created December 12, 2008 07:27
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Now free of pesky instance_ methods!
module Kernel
def blank_context(*args, &block)
ivars = args.extract_options!
args.push(/^__/)
klass = Class.new do
instance_methods.each do |m|
undef_method(m) unless args.any? { |pattern| m =~ pattern }
end
end
klass.class_eval(&block) if block_given?
instance = klass.new
setter = Object.instance_method(:instance_variable_set).bind(instance)
ivars.each { |key, value| setter.call("@#{key}", value) }
instance
end
end
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