P6opaque: no such attribute '$!storage' on type … in a Hash when trying to bind a value

[AlexDaniel]

The error happens when using CSS::Grammar module.

Code:

use CSS::Grammar::Actions # with https://github.com/p6-css/CSS-Grammar-p6 in your lib

Output (2017.12,eeb3cc726ada^):

(nothing)

Output (eeb3cc7, HEAD):

===SORRY!===
P6opaque: no such attribute '$!storage' on type CSSValue in a Hash when trying to bind a value

Seems to be our fault.

Bisectable points at (2018-01-15) eeb3cc7

That's all I know at this point, will add more info if I get any.

[AlexDaniel]

With -ll-exception: https://gist.github.com/AlexDaniel/da5ec5b8fad3869785abf4659270c786

[zoffixznet]

Golfed to enum CSSValue «:Map<foo>»; my %h = :42foo

The .find_symbol in the commit needs to ensure the symbol it finds is the one from core (I think it just needs :setting-only named param set). In the above code, the Map is an Enum value, not core Map.