## mark a section (Learn more)

def self.new if block_given? env = MethodContext.current.block else # Support for ancient pre-block-pass style: # def something; Proc.new; end # something { a_block } => Proc instance env = MethodContext.current.sender.block end if env return from_environment(env) else raise ArgumentError, "tried to create a Proc object without a block" end end

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