Today, I learned in IRC chat that
my @a = [9, 4, 3, 2, 7];
say @a.sort(:k) # (3 2 1 4 0)
is available since Rakudo 2023.08. I want my module to use this feature. Is there inbuilt mechanism to specify this in module, may be by modifying META6.json ?
Like if the Rakudo is earlier than 2023.08, fail the installation of module.
What I know is we can specify 6.c
, 6.d
, 6.e
e.g:
"raku": "6.d"
in META6.json file. This however does not address the issue.
Sadly current Raku does not have an inbuilt mechanism to control the VM version such as 2023.08 (eg. via META6.json) below the level of major raku release such as 6.d.
I suggest (and would support) this as a new feature request. In the meantime, here is a rough and ready workaround:
^^ put this in your test if you want installation to fail