From: Joel VanderWerf <vjoel@...>
Date: 2001-11-04T17:00:03+09:00
Subject: [ruby-talk:24314] yield works, but no block given


On the subject of 'yield called out of block': the following code gives
that error and block_given? returns false, but at the same time yield
manages to use the block. Is yield psychic? I'm using
RUBY_VERSION==1.6.5.

  class A
    def each
      p block_given?
      yield 1; yield 2; yield 3
      [4,5,6].each
    end
  end

  class B
    def each
      A.new.each
    end
  end

  B.new.each { |x| p x }

==>
  false
  1
  2
  3
  LocalJumpError: yield called out of block

--
Joel VanderWerf                          California PATH, UC Berkeley
mailto:vjoel@path.berkeley.edu                     Ph. (510) 231-9446
http://www.path.berkeley.edu                       FAX (510) 231-9512