From @masak

<diakopter> rn​: sub postfix​:<^^^>($a) is looser(&infix​:<+>) { $a; 77
}; say +6+ +8^^^
<p6eval> rakudo 53daef, niecza v24-5-g599cbcb​: OUTPUT«83␤»
<diakopter> rn​: sub postfix​:<^^^>($a) is looser(&infix​:<+>) { $a; 77
}; say +6^^^ +8^^^
<p6eval> rakudo 53daef​: OUTPUT«===SORRY!===␤CHECK FAILED​:␤Undefined
routine '&prefix​:<^^^>' called (line 1)␤»
<p6eval> ..niecza v24-5-g599cbcb​: OUTPUT«77␤»
<diakopter> erm
<jnthn> ...
<masak> o.O
* masak submits rakudobug
* jnthn wonders whose gonna fix these :P
* jnthn looks at Pm :D
<jnthn> EXPR is a scary place :)]

From @FROGGS

little bit simpler example​:

<FROGGS> p​: sub postfix​:<^^^>($a) is looser(&infix​:<+>) { $a; 77 }; say 6^^^ + 8
<camelia> rakudo-parrot d916db​: OUTPUT«===SORRY!===␤CHECK FAILED​:␤Undefined routine '&prefix​:<^^^>' called (lines 1, 1)␤»

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

From @FROGGS

This would disallow a too low precedence​:

https://gist.github.com/FROGGS/d1b09046bed6dd01ab56

I just don't know if this is the right fix for this issue or not.

From @AlexDaniel

Still reproducible (2017.11, HEAD(5929887))

The error message is a bit different​:

===SORRY!=== Error while compiling -e
Variable '&prefix​:<^^^>' is not declared
at -e​:1
------>  is looser(&infix​:<+>) { $a; 77 }; say 6⏏^^^ + 8

On 2015-04-17 03​:11​:45, FROGGS.de wrote​:

This would disallow a too low precedence​:

https://gist.github.com/FROGGS/d1b09046bed6dd01ab56

I just don't know if this is the right fix for this issue or not.