[MacRuby-devel] [MacRuby] #674: Shoulda fails because of oddity with block_given?

[MacRuby]

#674: Shoulda fails because of oddity with block_given?
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 Reporter:  marick@…             |       Owner:  lsansonetti@…        
     Type:  defect               |      Status:  new                  
 Priority:  minor                |   Milestone:                       
Component:  MacRuby              |    Keywords:                       
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Comment(by marick@…):

 It's more complicated. It seems as if block_given? acts like a local
 variable bound within the block, so that it retains its value even when
 the block is called at some arbitrary later point. Here's a simpler
 example:

 {{{
 def called(&blk)
   $block = blk
 end

 def should(&blk)
   called do
     puts "In MRI, you would see true instead of #{block_given?}"
   end
 end

 should do "some block thing" end
 $block.call

 }}}

 1.8.6 produces this:

 {{{
 1388 $ ruby block_given.rb
 In MRI, you would see true instead of true
 }}}

 instead of this from a recent 0.7:

 {{{
 1389 $ macruby block_given.rb
 In MRI, you would see true instead of false
 }}}

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/674#comment:3>
MacRuby <http://macruby.org/>