From @smls

This causes 'for' loops and methods calls on it, to fail​:

  ➜ .say for <2 1 3> .sort
  Cannot find method 'map'​: no method cache and no .^find_method

  ➜ say (<2 1 3> .sort).elems
  Cannot find method 'elems'​: no method cache and no .^find_method

  ➜ say (<2 1 3> .sort).^methods.perl
  {}

  ➜ say (<2 1 3> .sort).WHAT
  ()

  ➜ say (<2 1 3> .sort).^name
  BOOTArray

Funnily enough, &say and .[] can still handle it​:

  ➜ say (<2 1 3> .sort)
  (1 2 3)

  ➜ say (<2 1 3> .sort)[0]
  1

On the other hand when the postfix form of the method call operator is used (i.e. no space before the .sort), the problem does not appear​:

  ➜ .say for <2 1 3>.sort
  1
  2
  3

  ➜ say (<2 1 3>.sort).WHAT
  (List)

From @lizmat

Fixed with 15ee3c3b9d94855aa , tests needed

On 15 Dec 2015, at 13​:57, Sam S. (via RT) <perl6-bugs-followup@​perl.org> wrote​:

# New Ticket Created by Sam S.
# Please include the string​: [perl #​126921]
# in the subject line of all future correspondence about this issue.
# <URL​: https://rt-archive.perl.org/perl6/Ticket/Display.html?id=126921 >

This causes 'for' loops and methods calls on it, to fail​:

➜ .say for <2 1 3> .sort
Cannot find method 'map'​: no method cache and no .^find_method

➜ say (<2 1 3> .sort).elems
Cannot find method 'elems'​: no method cache and no .^find_method

➜ say (<2 1 3> .sort).^methods.perl
{}

➜ say (<2 1 3> .sort).WHAT
()

➜ say (<2 1 3> .sort).^name
BOOTArray

Funnily enough, &say and .[] can still handle it​:

➜ say (<2 1 3> .sort)
(1 2 3)

➜ say (<2 1 3> .sort)[0]
1

On the other hand when the postfix form of the method call operator is used (i.e. no space before the .sort), the problem does not appear​:

➜ .say for <2 1 3>.sort
1
2
3

➜ say (<2 1 3>.sort).WHAT
(List)

The RT System itself - Status changed from 'new' to 'open'

From @zoffixznet

Tests added in Raku/roast@94d5bc99c3

--
Cheers,
ZZ | https://twitter.com/zoffix

@zoffixznet - Status changed from 'open' to 'resolved'