On Sun Sep 19 06:33:09 2010, masak wrote:
> <Kodi> rakudo: my $x = Hash.new(a => 1); $x<a> = 2; say $x.perl
> <p6eval> rakudo ccde8d: OUTPUT«Cannot modify readonly value in
> '&infix:<=>' [...]
> * masak submits rakudobug
> <moritz_> this makes some perverted sense.
> <Kodi> The implementation of hash initialization does indeed look
> fishy.
> <Kodi> moritz_: What's your reasoning?
> <moritz_> Kodi: it binds $x<a> to 1
> <moritz_> and since 1 is not a container, you can't assign to $x<a>
> subsequently
> <moritz_> rakudo: my $x = 4; my $h = Hash.new(:$x); $h<a> = 42; say $x
> <p6eval> rakudo ccde8d: OUTPUT«4»
> <moritz_> rakudo: my $a = 4; my $h = Hash.new(:$a); $h<a> = 42; say $a
> <p6eval> rakudo ccde8d: OUTPUT«42»
> <moritz_> mind you, I'm not saying it's right; I just said it made
> some perverted sense.
> <Kodi> Shouldn't Hash.new assign rather than bind, since hashes are
> supposed to be mutable?
> <Kodi> Oh.
> <jnthn> Yeah, perverted sense, but I'm quite sure it's rong.
> <masak> rakudo: my $x = Hash.new(a => 1); $x<b> = 2; say $x.perl
> <p6eval> rakudo ccde8d: OUTPUT«{"b" => 2, "a" => 1}»
Fixed:
16:13 < [Coke]> rakudo: my $x = Hash.new(a => 1); $x<a> = 2; say $x.perl
16:13 <+p6eval> rakudo 88c5a5: OUTPUT«{"a" => 2}»
Closable with tests.
--
Will "Coke" Coleda
