Bug #20472: Ractor support for ** into hash literal

• Status: Assigned
• Assignee: ractor
• Target version: -
• Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN

[kddnewton (Kevin Newton)]

# shareable_constant_value: experimental_copy
a = { "foo" => "bar" }
A = { **a }

In this example, Ruby fails an assertion and crashes. I think we should either provide support for this, or we should explicitly provide a syntax error indicating that ** isn't allowed in constant writes when ractor pragmas are enabled.

[luke-gru (Luke Gruber)]

I've created a patch here: https://github.com/luke-gru/ruby/tree/20472 (the latest commit)

For kwsplat, it just calls compile_hash (which generates hash_merge_kw call after the hash generation), generates a freeze call on the compiled hash and then calls ensure_shareable on that hash if shareable_constant_value is literal.

[mame (Yusuke Endoh)]

• Assignee set to ko1 (Koichi Sasada)

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Assigned

[jhawthorn (John Hawthorn)]

• Assignee changed from ko1 (Koichi Sasada) to ractor