Unexpected write target for multi write node

[Morriar]

This snippet:

(
  foo,
  bar
) = 42

Returns a Prism::ParseError, unexpected write target error with Prism (though the AST seems to be parsed properly):

#<Prism::ParseResult:0x0000000104abb1e8
 @comments=[],
 @data_loc=nil,
 @errors=
  [#<Prism::ParseError @message="unexpected write target" @location=#<Prism::Location @start_offset=2 @length=8 start_line=2>>],
 @magic_comments=[],
 @source=#<Prism::Source:0x00000001018e15c8 @offsets=[0, 2, 7, 11], @source="(\nfoo,\nbar\n)=42", @start_line=1>,
 @value=
  @ ProgramNode (location: (1,0)-(4,4))
  ├── locals: [:foo, :bar]
  └── statements:
      @ StatementsNode (location: (1,0)-(4,4))
      └── body: (length: 1)
          └── @ MultiWriteNode (location: (1,0)-(4,4))
              ├── lefts: (length: 2)
              │   ├── @ LocalVariableTargetNode (location: (2,0)-(2,3))
              │   │   ├── name: :foo
              │   │   └── depth: 0
              │   └── @ LocalVariableTargetNode (location: (3,0)-(3,3))
              │       ├── name: :bar
              │       └── depth: 0
              ├── rest: ∅
              ├── rights: (length: 0)
              ├── lparen_loc: (1,0)-(1,1) = "("
              ├── rparen_loc: (4,0)-(4,1) = ")"
              ├── operator_loc: (4,1)-(4,2) = "="
              └── value:
                  @ IntegerNode (location: (4,2)-(4,4))
                  └── flags: decimal,
 @warnings=[]>

The same code seems to execute normally with Ruby:

$ ruby snippet.rb
42

[kddnewton]

I can't seem to reproduce this. Is this in 0.25.0?

[kddnewton]

I think this is what you ran: Prism.parse("(\nfoo,\nbar\n)=42"). It does not appear to be broken on main. I'll close as fixed.

[Morriar]

Indeed it's not happening on 0.25, my bad 👍