# New Ticket Created by Peter Pentchev # Please include the string: [perl #128619] # in the subject line of all future correspondence about this issue. # <URL: https://rt.perl.org/Ticket/Display.html?id=128619 >
Hi, As discussed a bit on IRC from https://irclog.perlgeek.de/perl6/2016-07-14#i_12840543 until about https://irclog.perlgeek.de/perl6/2016-07-14#i_12840653 In a hash that accepts arbitrary objects as keys, an assignment using a list-like variable as a key works, but a binding interprets the list nature of the variable as a hash slice and fails: 17:02 < lizmat> m: my %h{Any}; my $key = slip("a",); %h{$key} = 1; dd %h # if this works 17:02 <+camelia> rakudo-moar 527f8d: OUTPUT«Hash[Any,Any] %h = (my Any %{Any} = (slip("a",)) => 1)» 17:02 < lizmat> m: my %h{Any}; my $key = slip("a",); %h{$key} := 1; dd %h # then this should work as well 17:02 <+camelia> rakudo-moar 527f8d: OUTPUT«Cannot bind to Hash[Any,Any] slice in block <unit> at <tmp> line 1» As noted there, I'd be perfectly fine with a "make the assignment treat it as a slice too, then rethink your program and don't use lists as keys" resolution, but right now the behavior is inconsistent. Thanks for developing Perl 6 so far that the problems that need to be reported are as hairy and obscure as this one! :) G'luck, Peter
