Re: [perl #78112] [BUG] Null PMC access when using placeholder parameter in rhs of attribute assignment in class declaration in Rakudo

[John Harrison]

std seems to complain that the placeholder variables are not valid here.
Maybe we need more clarification on whether this should work or not.


<ash_> std: class A {has $.a = $^b + 1 }; say A.new(1).a

<p6eval> std 237d266: OUTPUT«[31m===[0mSORRY![31m===[0m␤Placeholder variable
$^b may not be used here because the surrounding package block takes no
signature at /tmp/Fx9q_bkcz8 line 1:␤------> [32mclass A {has $.a =
$^b[33m⏏[31m + 1}; say A.new(1).a

--
John Harrison


On Tue, Sep 28, 2010 at 5:34 PM, Carl Mäsak <perl6-bugs-follo...@perl.org>wrote:

> # New Ticket Created by  "Carl Mäsak"
> # Please include the string:  [perl #78112]
> # in the subject line of all future correspondence about this issue.
> # <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=78112 >
>
>
> <hudnix> rakudo: class A {has $.a = $^b + 1;has $.b = $^a }; say
> A.new(1,2).a
> <p6eval> rakudo 624188: OUTPUT«Null PMC access in type() [...]
> * masak submits rakudobug
> <masak> rakudo: class A { has $.a = $^b }; A.new
> <p6eval> rakudo 624188: OUTPUT«Null PMC access in isa_pmc() [...]
>