> On 03 Jan 2016, at 19:12, Zoffix Znet (via RT) <perl6-bugs-follo...@perl.org> > wrote: > > # New Ticket Created by Zoffix Znet > # Please include the string: [perl #127135] > # in the subject line of all future correspondence about this issue. > # <URL: https://rt.perl.org/Ticket/Display.html?id=127135 > > > > Consider this code that is missing the second argument for .subst-mutate > method and the error it generates: > > <Zoffix> m: my $foo = '42'; $foo.subst-mutate: /^'ba'/; > <camelia> rakudo-moar b5cb00: OUTPUT«Memory allocation failed; could not > allocate 19776 bytes» > > What's happening is instead of getting the .subst-mutate from Str type, the > missing arg causes us to get the one from Cool type: > https://github.com/rakudo/rakudo/blob/8c001e0a8fc4aacc93eb4327d30071b00f9699fa/src/core/Cool.pm#L267 > > The Cool then stringifies the argument and attempts to call .subst-mutate > again, with same args, restarting the infinite loop: > https://github.com/rakudo/rakudo/blob/8c001e0a8fc4aacc93eb4327d30071b00f9699fa/src/core/Cool.pm#L273 > > The number of args in Cool should be detected and error generated.
Fixed with 7d4cdbcdd5fce287afc32 . Since there are apparently *NO* spectests for Str.subst-mutate whatsover, I’m leaving the testing as low hanging fruit for someone else. Liz
