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[Truffle] $POSTMATCH not aliased #3051

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bjfish opened this issue Jun 15, 2015 · 3 comments
Closed

[Truffle] $POSTMATCH not aliased #3051

bjfish opened this issue Jun 15, 2015 · 3 comments
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Non-Release

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@bjfish
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bjfish commented Jun 15, 2015

It looks like jruby's English.rb file comments out the aliases.

Example

require "English"
/^is/ =~ "isPermaLink"
puts "#{$'},#{$POSTMATCH}"

Expected

$ ruby alias.rb 
PermaLink,PermaLink

Actual

$ ~/Documents/jruby/bin/jruby -X+T alias.rb 
PermaLink,
@bjfish bjfish added the truffle label Jun 15, 2015
@chrisseaton
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Is this blocking something major?

@bjfish
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bjfish commented Jun 20, 2015

@chrisseaton No, the RSS stdlib uses it.

bjfish referenced this issue Nov 8, 2016
@eregon
[Truffle] Implement alias of global variables.
fd5b2f1
@eregon
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eregon commented Nov 8, 2016

aliasing of global variables is now implemented, but this example does not work for two reasons:

  • jruby modified English.rb and commented the code, so we should use a vanilla version from MRI 2.3 instead.
  • $~ and MatchData-related as well as $_ are special and currently frame and thread-local. Aliasing does not currently work for them.

@bjfish bjfish closed this as completed Jan 14, 2017
@enebo enebo modified the milestone: truffle-dev Feb 10, 2017
@enebo enebo added this to the Non-Release milestone Dec 7, 2017
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@enebo @bjfish @eregon @chrisseaton