[ruby-core:119244] [Ruby master Bug#20751] Regression in Prism related to use of return in default argument values

Issue #20751 has been updated by jeremyevans0 (Jeremy Evans).

Status changed from Open to Closed

kddnewton (Kevin Newton) wrote in #note-2:
> I believe this was fixed this morning. Could you double-check that this is still an issue?

Looks like it is fixed in ruby/prism, but not ruby/ruby, since https://github.com/ruby/prism/commit/e98ea155960eb98649f3990da19635e63f52ba28 is not yet merged to ruby/ruby.  I'll close this as I assume it will be merged to ruby/ruby soon.


----------------------------------------
Bug #20751: Regression in Prism related to use of return in default argument values
https://bugs.ruby-lang.org/issues/20751#change-109826

* Author: jeremyevans0 (Jeremy Evans)
* Status: Closed
* Backport: 3.1: DONTNEED, 3.2: DONTNEED, 3.3: DONTNEED
----------------------------------------
All versions of parse.y dating at least back to Ruby 1.8.7, and Prism in both Ruby 3.3.5 and 3.4.0preview1, correctly parses this code:

```ruby
class A
  def foo(b = nil || (return))
  end
end
```

The master branch, unless `--parser=parse.y` is used, now considers this a SyntaxError:

```
-: -:2: syntax error found (SyntaxError)
  1 | class A
> 2 |   def foo(b = nil || (return))
    |                       ^~~~~~ Invalid return in class/module body
  3 |   end
  4 | end
```



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