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block parameter incompatibility with CRuby #2720

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nagachika opened this issue Feb 8, 2015 · 1 comment
Open

block parameter incompatibility with CRuby #2720

nagachika opened this issue Feb 8, 2015 · 1 comment

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@nagachika
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@nagachika nagachika commented Feb 8, 2015

The following script show the difference in block parameter treatment between mruby and CRuby(MRI).

[[:a,1]].each_with_object({}) do |(k, v), o|
  p [k,v,o]
end

mruby

% mruby -v
mruby 1.1.0 (2014-11-19)
% mruby block.rb
[[:a, 1], {}, nil]

CRuby(MRI)

% ruby -v block.rb
ruby 2.2.0p0 (2014-12-25 revision 49005) [x86_64-darwin13]
[:a, 1, {}]
% ruby -v block.rb
ruby 2.1.5p291 (2015-02-09 revision 49473) [x86_64-darwin13.0]
[:a, 1, {}]
% ruby -v block.rb
ruby 2.0.0p598 (2014-11-13 revision 48408) [x86_64-darwin13.4.0]
[:a, 1, {}]
@schmurfy
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@schmurfy schmurfy commented Mar 2, 2015

I don't think using () to "explode" an array in individual variables like this is supported by mruby currently, see matz comment here: #1951
Since the linked issue is still open I imagine it is still in the same state.

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