JsModule {
    bom_token: missing (optional),
    interpreter_token: missing (optional),
    directives: JsDirectiveList [],
    items: JsModuleItemList [
        JsExpressionStatement {
            expression: JsParenthesizedExpression {
                l_paren_token: L_PAREN@0..1 "(" [] [],
                expression: JsAssignmentExpression {
                    left: JsIdentifierAssignment {
                        name_token: IDENT@1..5 "foo" [] [Whitespace(" ")],
                    },
                    operator_token: EQ@5..7 "=" [] [Whitespace(" ")],
                    right: missing (required),
                },
                r_paren_token: R_PAREN@7..8 ")" [] [],
            },
            semicolon_token: SEMICOLON@8..9 ";" [] [],
        },
    ],
    eof_token: EOF@9..10 "" [Newline("\n")] [],
}

0: JS_MODULE@0..10
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..9
    0: JS_EXPRESSION_STATEMENT@0..9
      0: JS_PARENTHESIZED_EXPRESSION@0..8
        0: L_PAREN@0..1 "(" [] []
        1: JS_ASSIGNMENT_EXPRESSION@1..7
          0: JS_IDENTIFIER_ASSIGNMENT@1..5
            0: IDENT@1..5 "foo" [] [Whitespace(" ")]
          1: EQ@5..7 "=" [] [Whitespace(" ")]
          2: (empty)
        2: R_PAREN@7..8 ")" [] []
      1: SEMICOLON@8..9 ";" [] []
  4: EOF@9..10 "" [Newline("\n")] []
--
assign_expr_right.js:1:8 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Expected an expression, or an assignment but instead found ')'.
  
  > 1 │ (foo = );
      │        ^
    2 │ 
  
  i Expected an expression, or an assignment here.
  
  > 1 │ (foo = );
      │        ^
    2 │ 
  
--
(foo = );