# New Ticket Created by Elizabeth Mattijsen # Please include the string: [perl #126312] # in the subject line of all future correspondence about this issue. # <URL: https://rt.perl.org/Ticket/Display.html?id=126312 >
$ 6 'my Int @a; @a[5] = 42; $_ = 666 for @a' Cannot assign to an immutable value in block <unit> at -e:1 [23:11:32] <lizmat> .tell jnthn my Int @a; @a[5] = 42; $_ = 666 for @a fails because it gets an IterationBuffer as target, not an ArrayReificationTarget [23:12:26] <lizmat> .tell the IterationBuffer doesn't have a descriptor So I think it could be a code gen issue. And is my previous fix for: $ 6 'my Int @a; @a[5] = 42; .say for @a' (Int) (Int) (Int) (Int) (Int) 42 basically wrong, as we don’t have typed lists (and those (Int) are appearing there because I took the .of of the given list, which gives the right type, but no descriptor. In other words, for the @a case, it should never wind up in the List iterator anyway? Liz
