[ruby-core:122099] [Ruby Bug#20726] Issue with hash without braces when assigned to constant with ractor literals

Issue #20726 has been updated by byroot (Jean Boussier).

Status changed from Assigned to Closed

This no longer reproduce with either parser, so I'm going to assume it was fixed.

----------------------------------------
Bug #20726: Issue with hash without braces when assigned to constant with ractor literals
https://bugs.ruby-lang.org/issues/20726#change-113252

* Author: luke-gru (Luke Gruber)
* Status: Closed
* Assignee: ractor
* ruby -v: 3.4.0dev
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
```ruby
# shareable_constant_value: literal
a = 'hi'
A = ['hello' => a]
p A
```

gives:

```
./ruby -I../ruby/lib -I. -I.ext/x86_64-linux -I.ext/common -r./x86_64-linux-fake ../ruby/test.rb

-- raw disasm--------

   trace: 1

   0000 putchilledstring     "hi"                                     (   3)

   0002 setlocal_WC_0        3                                           (   3)

   trace: 1

   0004 newarray             1                                           (   4)

   0006 putspecialobject     3                                           (   4)

*  0008 setconstant          :A                                          (   4)

   trace: 1

   0010 putself                                                          (   5)

   0011 opt_getconstant_path [:A]                                        (   5)

   0013 opt_send_without_block <calldata:p, 1>                           (   5)

   0015 leave                                                            (   5)

---------------------

../ruby/test.rb:4: argument stack underflow (-1)

../ruby/test.rb: compile error (SyntaxError)
```

This is due to a line in `compile.c`, function `compile_shareable_literal_constant`:

```c
if (!RNODE_HASH(node)->nd_brace) { }
```

I'm not sure why this condition is there so I'm not confident in making a fix. Also, my git-fu isn't the best so I can't track down the right commit where it was added.

Expected:

It works just the same as when pragma `shareable_constant_value: literal` is not given. Which is to say, `[{'hello' => 'hi'}]` is is the value of `A`.



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