Break handling discrepancy between JRuby and MRI
------------------------------------------------
Key: JRUBY-2526
URL: http://jira.codehaus.org/browse/JRUBY-2526
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.1.1
Environment: Ubuntu 8.04, i386, Sun Java 1.6.0_06, JRuby binary from
jruby.org
Reporter: Shot
Given the below Enumerable extension:
module Enumerable
def every_pair_with_indices
each_with_index do |a, i|
each_with_index do |b, j|
yield [a, b, i, j] if i < j
end
end
end
def every_pair
every_pair_with_indices do |a, b, i, j|
yield [a, b]
end
end
end
when breaking out of Enumerable#every_pair, JRuby 1.1.1 seems to break only out
of the final implementation's inner loop, while MRI 1.8.6.p114 breaks out of
the whole #every_pair (much like it would break out of #each):
ruby 1.8.6 (2008-03-03 patchlevel 114) [i686-linux]
>> [1,2,3,4].every_pair{|a,b| p [a,b]; break if [a,b] == [1,3]}
[1, 2]
[1, 3]
=> nil
ruby 1.8.6 (2008-04-22 rev 6555) [i386-jruby1.1.1]
>> [1,2,3,4].every_pair{|a,b| p [a,b]; break if [a,b] == [1,3]}
[1, 2]
[1, 3]
[2, 3]
[2, 4]
[3, 4]
=> [1, 2, 3, 4]
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