[perl #69178] [BUG] Null PMC access when definedness of placeholder parameter is evaluated inside 'repeat while' block in Rakudo

[Will Coleda via RT]

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< 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