Fixed with b6a4d5b555520451c5c8a, this now DWIM, tests needed. Error message being too long, fixed with 497e0582e6c64ccc04b2e9 .
> On 23 Oct 2017, at 14:28, Zoffix Znet (via RT) <perl6-bugs-follo...@perl.org> > wrote: > > # New Ticket Created by Zoffix Znet > # Please include the string: [perl #132353] > # in the subject line of all future correspondence about this issue. > # <URL: https://rt.perl.org/Ticket/Display.html?id=132353 > > > > This code produces an LTA error: > > my %days := SetHash.new: Date.today … Date.new: '2030-04-02'; > %days ∖= %days.grep: *.key.day-of-week > 5; > > First, the error reads "Cannot modify an immutable SetHash" which is > confusing, > since SetHash is a mutable type. > > Second, the error dumps all of the contents of the SetHash, so for this code, > the user has to scroll several pages up just to get to the error itself. FWIW, I think a more readable version of this is: %days .= grep: *.key.day-of-week > 5;
