bisectable6

query

my @needles = "foo"; do given any(@needles) { when "foo" { say "OK" }; default { say "wut" }; };

result

Bisecting: 46 revisions left to test after this (roughly 6 steps)
[e90ed75796775561a1b4515f57c8b4855e082015] Merge pull request #4064 from rakudo/fix-compiler-services-concurrency-issue
»»»»» Testing e90ed75796775561a1b4515f57c8b4855e082015
»»»»» Script output:
OK

»»»»» Script exit code: 0
»»»»» Bisecting by output
»»»»» Output on “old” revision is:
OK

»»»»» The output is identical
»»»»» Therefore, marking this revision as “old”
»»»»» -------------------------------------------------------------------------
»»»»» Testing 912381b717a2691654431c5d8a70628d4e408427
»»»»» Script output:
wut

»»»»» Script exit code: 0
»»»»» Bisecting by output
»»»»» Output on “old” revision is:
OK

»»»»» The output is different
»»»»» Therefore, marking this revision as “new”
»»»»» -------------------------------------------------------------------------
»»»»» Testing 3d8e942f0797765511c13e971803421e4d9bf21c
»»»»» Script output:
OK

»»»»» Script exit code: 0
»»»»» Bisecting by output
»»»»» Output on “old” revision is:
OK

»»»»» The output is identical
»»»»» Therefore, marking this revision as “old”
»»»»» -------------------------------------------------------------------------
»»»»» Testing 260f015888c71b92a5333672336e70c74f538b38
»»»»» Script output:
wut

»»»»» Script exit code: 0
»»»»» Bisecting by output
»»»»» Output on “old” revision is:
OK

»»»»» The output is different
»»»»» Therefore, marking this revision as “new”
»»»»» -------------------------------------------------------------------------
»»»»» Testing 734631b678897345ab978b7bf493385020db8b76
»»»»» Script output:
OK

»»»»» Script exit code: 0
»»»»» Bisecting by output
»»»»» Output on “old” revision is:
OK

»»»»» The output is identical
»»»»» Therefore, marking this revision as “old”
»»»»» -------------------------------------------------------------------------
»»»»» Testing 0006475ad0d28a9325d63f5dba73437649987bfd
»»»»» Script output:
wut

»»»»» Script exit code: 0
»»»»» Bisecting by output
»»»»» Output on “old” revision is:
OK

»»»»» The output is different
»»»»» Therefore, marking this revision as “new”
»»»»» -------------------------------------------------------------------------
»»»»» Testing c080e59404ed1b27e8841249e1c71d7e013c09ca
»»»»» Script output:
wut

»»»»» Script exit code: 0
»»»»» Bisecting by output
»»»»» Output on “old” revision is:
OK

»»»»» The output is different
»»»»» Therefore, marking this revision as “new”
c080e59404ed1b27e8841249e1c71d7e013c09ca is the first new commit
commit c080e59404ed1b27e8841249e1c71d7e013c09ca
Author: Daniel Green <ddgreen@gmail.com>
Date:   Fri Nov 13 16:22:56 2020 -0500

    Gen faster code for some kinds of `when` cases
    
    If it's a type or literal, we don't need to do a full smartmatch.
    Unfortunately this isn't dramatically faster, since the primary cost is
    in generating a Backtrace for the Failure created when a case doesn't
    match.
    
    An example test case:
    ```raku
    my $a;
    my @a = 1, 5, Int, "hi", "bye", 50, Complex;
    my $s = now;
    for ^100_000 -> $i {
        $a = do given @a[$i % 7] {
            when Int  { "Int" }
            when 5    { "five" }
            when "hi" { "hello" }
            default   { "default" }
        }
    };
    say now - $s;
    say $a
    ```
    takes ~1.4s with this change, ~1.8s before.

:040000 040000 0dff6dfe438fd3eb758863cc30a80b8ba81b24bf f0da2e86bb295c2eb7d6b579f24a9a03fae7b789 M	src