From @moritz

21​:50 < moritz> r​: say START { 42 } for 1, 2
21​:50 <+p6eval> rakudo a19ce8​: OUTPUT«Mu()␤Mu()␤»

But this works​:

21​:50 < moritz> r​: say START 42 for 1, 2
21​:50 <+p6eval> rakudo a19ce8​: OUTPUT«42 42␤»

as does this​:

21​:52 < moritz> r​: for 1, 2 { say START 42 }
21​:52 <+p6eval> rakudo a19ce8​: OUTPUT«42␤42␤»

From @perlpilot

The C<START> phaser has been deprecated in favor of the C<once> statement prefix (see Raku/old-design-docs@fca7f5a), but the semantics appear to be the same​:

➤ ./perl6

say once { 42 } for 1, 2;
(Mu)
(Mu)
say once 42 for 1, 2;
42 42
for 1, 2 { say once 42 }
42
42

➤ ./perl6 --version
This is perl6 version 2015.06-275-g48c0ba5 built on MoarVM version 2015.06-98-gf22142b

On Fri Sep 14 12​:52​:38 2012, moritz wrote​:

21​:50 < moritz> r​: say START { 42 } for 1, 2
21​:50 <+p6eval> rakudo a19ce8​: OUTPUT«Mu()␤Mu()␤»

But this works​:

21​:50 < moritz> r​: say START 42 for 1, 2
21​:50 <+p6eval> rakudo a19ce8​: OUTPUT«42 42␤»

as does this​:

21​:52 < moritz> r​: for 1, 2 { say START 42 }
21​:52 <+p6eval> rakudo a19ce8​: OUTPUT«42␤42␤»

--
perlpilot

From @jnthn

On Sun Jul 19 02​:53​:08 2015, duff wrote​:

The C<START> phaser has been deprecated in favor of the C<once>
statement prefix (see
Raku/old-design-docs@fca7f5a),
but the semantics appear to be the same​:

➤ ./perl6

say once { 42 } for 1, 2;
(Mu)
(Mu)

Fixed this one​:

$ perl6-m -e "say once { 42 } for 1, 2;"
42
42

Tests in S04-statements/once.t.

say once 42 for 1, 2;
42 42

Will also note that this one is correct due to precedence.

/jnthn

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

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