From @masak

<masak> I smell a Null PMC access in the Force...
<masak> rakudo​: repeat while True {}
<p6eval> rakudo 446d49​: ( no output )
<masak> rakudo​: my $a = 1; repeat while $a&lt; 10 { $^a.defined.say; }
<p6eval> rakudo 446d49​: OUTPUT«Null PMC access in find_method()
* masak submits rakudobug

Minimizing this a bit further, the program 'repeat while True {
$^a.defined }' seems to do the trick

From @coke

On Wed Sep 16 14​:51​:47 2009, masak wrote​:

<masak> I smell a Null PMC access in the Force...
<masak> rakudo​: repeat while True {}
<p6eval> rakudo 446d49​: ( no output )
<masak> rakudo​: my $a = 1; repeat while $a&lt; 10 { $^a.defined.say; }
<p6eval> rakudo 446d49​: OUTPUT«Null PMC access in find_method()
* masak submits rakudobug

Minimizing this a bit further, the program 'repeat while True {
$^a.defined }' seems to do the trick

This no longer generates an NPE​:

$ ./perl6

repeat while True { $^a.defined }
Method 'defined' not found for invocant of class 'Undef'

--
Will "Coke" Coleda

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

From @moritz

Now​: Null PMC access in type()

From @coke

On Wed Sep 16 14​:51​:47 2009, masak wrote​:

<masak> I smell a Null PMC access in the Force...
<masak> rakudo​: repeat while True {}
<p6eval> rakudo 446d49​: ( no output )
<masak> rakudo​: my $a = 1; repeat while $a&lt; 10 { $^a.defined.say; }
<p6eval> rakudo 446d49​: OUTPUT�Null PMC access in find_method()
* masak submits rakudobug

Minimizing this a bit further, the program 'repeat while True {
$^a.defined }' seems to do the trick

This now loops infinitely, generating a lot of output.

Closable with tests.

--
Will "Coke" Coleda

From @moritz

Now tested in S04-statements/repeat.t

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