[perl #125618] [REGEX] Positional capture of separator on ?% operator causes compiler error
[email protected] ("Zoffix Znet via RT")
| Newsgroups | perl.perl6.compiler |
|---|---|
| Message-ID | <[email protected]> |
On Wed, 15 Jul 2015 07:31:55 -0700, lue wrote: > <ShimmerFairy> m: say "ab" ~~ /^ a +% (b) $/ > <camelia> rakudo-moar e4077e: OUTPUT«Nil» > <ShimmerFairy> m: say "ab" ~~ /^ a *% (b) $/ > <camelia> rakudo-moar e4077e: OUTPUT«Nil» > <ShimmerFairy> m: say "ab" ~~ /^ a ?% (b) $/ > <camelia> rakudo-moar e4077e: OUTPUT«===SORRY!===QAST::Block with > cuid cuid_1_1436969557.11546 has not appeared» > > On JVM: > > <ShimmerFairy> j: say "ab" ~~ /^ a ?% (b) $/ > <camelia> rakudo-jvm e4077e: OUTPUT«===SORRY!===setcodeobj can only > be used with a CodeRef» > > And just to show that it's not just the ?% operator alone contributing > to the issue, but the capture too: > > <ShimmerFairy> m: say "ab" ~~ /^ a ?% [b] $/ > <camelia> rakudo-moar e4077e: OUTPUT«Nil» Made potential fix in branches in https://github.com/perl6/nqp/commit/ac3d5307f3 and https://github.com/perl6/roast/commit/f2b07afbba The fix is to throw on `?`/`??` quantifiers used with `%`/`%%`. It's blocked by 2 lines of 6.c tests that indirectly use this combination: https://github.com/perl6/roast/commit/aaa71d077431cd0a86be84bd386e1032a12e8697#diff-ae7b47444302486e790af6ee18121fabR16 I delegated it to the release manager whether to merge that stuff or to require a fix that leaves these working and then we fix the compilation error itself.