From @masak

<tylercurtis> rakudo​: my $b; -> $_ is rw = $OUTER​::_ { $_ = 5; $b =
{.say}}(); .say; $_ = 42; $b();
<p6eval> rakudo 377615​: OUTPUT«Null PMC access in getprop() [...]
* masak submits rakudobug for tylercurtis Null PMC access
<masak> rakudo​: -> $_ is rw = $OUTER​::_ { $_ = 5 }()
<p6eval> rakudo 377615​: OUTPUT«Null PMC access in getprop() [...]
<masak> rakudo​: -> $_ is rw = $FOO​::a { $_ = 5 }()
<p6eval> rakudo 377615​: OUTPUT«Null PMC access in getprop() [...]
<masak> hihihi

From @masak

<jnthn> rakudo​: $FOO​::a = 42
<p6eval> rakudo 377615​: OUTPUT«Null PMC access in getprop() [...]
* masak changes the ticket

@masak - Status changed from 'new' to 'open'

From @coke

On Thu Oct 07 14​:46​:24 2010, masak wrote​:

<tylercurtis> rakudo​: my $b; -> $_ is rw = $OUTER​::_ { $_ = 5; $b =
{.say}}(); .say; $_ = 42; $b();
<p6eval> rakudo 377615​: OUTPUT�Null PMC access in getprop() [...]
* masak submits rakudobug for tylercurtis Null PMC access
<masak> rakudo​: -> $_ is rw = $OUTER​::_ { $_ = 5 }()
<p6eval> rakudo 377615​: OUTPUT�Null PMC access in getprop() [...]
<masak> rakudo​: -> $_ is rw = $FOO​::a { $_ = 5 }()
<p6eval> rakudo 377615​: OUTPUT�Null PMC access in getprop() [...]
<masak> hihihi

Fixed​:

17​:16 < [Coke]> rakudo​: my $b; -> $_ is rw = $OUTER​::_ { $_ = 5; $b =
  {.say}}(); .say; $_ = 42; $b();
17​:16 <+p6eval> rakudo 33f1cf​: OUTPUT«Any()␤5␤»
17​:16 < [Coke]> rakudo​: -> $_ is rw = $OUTER​::_ { $_ = 5 }()
17​:16 <+p6eval> rakudo 33f1cf​: ( no output )
17​:16 < [Coke]> rakudo​: -> $_ is rw = $FOO​::a { $_ = 5 }()
17​:16 <+p6eval> rakudo 33f1cf​: ( no output )
17​:16 < [Coke]> rakudo​: $FOO​::a = 42
17​:16 <+p6eval> rakudo 33f1cf​: ( no output )

Closable with tests.

--
Will "Coke" Coleda

From @jdv

Closing on account of the test cases all being invalid now. See below.

[jdv@​wieldy ~]$ perl6 -e '-> $_ is rw = $OUTER​::_ { $_ = 5 }()'
===SORRY!=== Error while compiling -e
Cannot use 'is rw' on an optional parameter
at -e​:1
[jdv@​wieldy ~]$

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