From @geekosaur

Seen in IRC​:

[05 17​:51​:12] <Zoffix> m​: grammar { token TOP { :my $*v = 42; <foo> };
token foo { {dd $*v } &lt;bar&gt; }; token bar { :temp $*val = 100; <bez> };
token bez { {dd $*val } .+ } }.parse​: "foo"
[05 17​:51​:12] <camelia> rakudo-moar c39db8​: OUTPUT​: «Int $*v = 42␤
[05 17​:51​:12] Can only use 'temp' on a container␤
[05 17​:51​:12] in regex bar at <tmp> line 1␤
[05 17​:51​:12] in regex foo at <tmp> line 1␤
[05 17​:51​:12] in regex TOP at <tmp> line 1␤
[05 17​:51​:12] in block <unit> at <tmp> line 1␤
[05 17​:51​:12] ␤
[05 17​:51​:12] »
[05 17​:51​:20] <Zoffix> ... and I'm using it on... ?
[05 17​:51​:45] <Zoffix> piojo2​: well, that would've been ^ a better
solution, but apparently that's also broken :P
[05 17​:52​:00] <Zoffix> Oh, wait
[05 17​:52​:16] <Zoffix> m​: grammar { token TOP { :my $*v = 42; <foo> };
token foo { {dd $*v } &lt;bar&gt; }; token bar { :temp $*v = 100; <bez> }; token
bez { {dd $*v } .+ } }.parse​: "foo"
[05 17​:52​:16] <camelia> rakudo-moar c39db8​: OUTPUT​: «Int $*v = 42␤
[05 17​:52​:16] Int $*v = 100␤
[05 17​:52​:16] »
[05 17​:52​:24] <Zoffix> It works if you name your variables right :P
[05 17​:53​:39] <geekosaur> that error seems a trifle LTA

Apparently it's reacting to the default value being a Failure. Which is
fine as to mechanism, but it'd be better for it to note an uninitialized
variable and still better yet to recognize that it could be a typo.

(Yes, I recognize this could be tricky.)

--
brandon s allbery kf8nh sine nomine associates
allbery.b@​gmail.com ballbery@​sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net

From @geekosaur

Or maybe it's not that tricky after all; seems the Failure is actually a
useful one (X​::Dynamic​:NotFound), so introspection of the Failure would
reveal the issue.

--
brandon s allbery kf8nh sine nomine associates
allbery.b@​gmail.com ballbery@​sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net

From @jnthn

On Tue, 05 Sep 2017 11​:02​:59 -0700, allbery.b@​gmail.com wrote​:

Or maybe it's not that tricky after all; seems the Failure is actually a
useful one (X​::Dynamic​:NotFound), so introspection of the Failure would
reveal the issue.

Indeed. I added code to check if the thing we were trying to temporize was a Failure and just throw that instead of the more generic error, which improves the error reporting and has no ill effects on the spectest. Also added a test in S04-blocks-and-statements/temp.t to cover the improvement.

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

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