Some phaser blorsts don't see outer $_

[p6rt]

Migrated from rt.perl.org#125488 (status was 'resolved')

Searchable as RT125488$

[p6rt]

From @lizmat

[12​:35​:07] <lizmat> m​: for ^2 { NEXT .say } # feels like a rakudobug
[12​:35​:07] <+camelia> rakudo-moar a15dac​: OUTPUT«Cannot call method 'say' on a null objectâ�¤ in block <unit> at /tmp/gV2l9tWyYZ​:1â�¤â�¤Â»
[12​:35​:32] <lizmat> m​: for ^2 { NEXT $_.say } # same
[12​:35​:32] <+camelia> rakudo-moar a15dac​: OUTPUT«Cannot call method 'say' on a null objectâ�¤ in block <unit> at /tmp/2JExRjB36d​:1â�¤â�¤Â»
[12​:35​:45] <lizmat> m​: for ^2 { .say } # ok
[12​:35​:46] <+camelia> rakudo-moar a15dac​: OUTPUT«0â�¤1â�¤Â»
[12​:35​:54] <lizmat> moritz​: agree ?
[12​:37​:49] <moritz> lizmat​: yes

Same for LAST​:

$ 6 'for ^10 { LAST .say }'
Cannot call method 'say' on a null object

Not for FIRST, LEAVE, PRE, UNDO
$ 6 'for ^1 { FIRST .say }'
0
$ 6 'for ^1 { LEAVE .say }'
0
$ 6 'for ^1 { PRE .say }�
0
$ 6 'for ^1 { UNDO .say }�
0
$ 6 'for ^1 { KEEP .say; 1 }�
0

POST has a different failure mode​:

$ 6 'for ^1 { POST .say }�
Nil

Liz

[p6rt]

From @AlexDaniel

This was resolved in (2016-08-03) rakudo/rakudo@5e61516

W4anD0eR96 committed some tests for it​: Raku/roast@48124e0

And then beefed up the tests for other phasers​: Raku/roast@2a3717c

This revealed an issue in KEEP, which is now filed in rakudo/rakudo#1290

Closing.

On 2015-06-26 03​:45​:08, elizabeth wrote​:

[12​:35​:07] <lizmat> m​: for ^2 { NEXT .say } # feels like a
rakudobug
[12​:35​:07] <+camelia> rakudo-moar a15dac​: OUTPUT«Cannot call method
'say' on a null objectâ�¤ in block <unit> at /tmp/gV2l9tWyYZ​:1â�¤â�¤»
[12​:35​:32] <lizmat> m​: for ^2 { NEXT $_.say } # same
[12​:35​:32] <+camelia> rakudo-moar a15dac​: OUTPUT«Cannot call method
'say' on a null objectâ�¤ in block <unit> at /tmp/2JExRjB36d​:1â�¤â�¤»
[12​:35​:45] <lizmat> m​: for ^2 { .say } # ok
[12​:35​:46] <+camelia> rakudo-moar a15dac​: OUTPUT«0â�¤1â�¤»
[12​:35​:54] <lizmat> moritz​: agree ?
[12​:37​:49] <moritz> lizmat​: yes

Same for LAST​:

$ 6 'for ^10 { LAST .say }'
Cannot call method 'say' on a null object

Not for FIRST, LEAVE, PRE, UNDO
$ 6 'for ^1 { FIRST .say }'
0
$ 6 'for ^1 { LEAVE .say }'
0
$ 6 'for ^1 { PRE .say }’
0
$ 6 'for ^1 { UNDO .say }’
0
$ 6 'for ^1 { KEEP .say; 1 }’
0

POST has a different failure mode​:

$ 6 'for ^1 { POST .say }’
Nil

Liz

[p6rt]

The RT System itself - Status changed from 'new' to 'open'

[p6rt]

@AlexDaniel - Status changed from 'open' to 'resolved'

[p6rt]

From @tisonkun

So far we've fix the bugs on NEXT and LAST, while POST remained.

I added a test for this ticket perl6/roast#​362