JsModule {
    bom_token: missing (optional),
    interpreter_token: missing (optional),
    directives: JsDirectiveList [],
    items: JsModuleItemList [
        JsBogusStatement {
            items: [
                JsDecoratorList [],
                ABSTRACT_KW@0..9 "abstract" [] [Whitespace(" ")],
                CLASS_KW@9..15 "class" [] [Whitespace(" ")],
                JsIdentifierBinding {
                    name_token: IDENT@15..17 "A" [] [Whitespace(" ")],
                },
                L_CURLY@17..18 "{" [] [],
                JsClassMemberList [],
                R_CURLY@18..19 "}" [] [],
            ],
        },
    ],
    eof_token: EOF@19..20 "" [Newline("\n")] [],
}

0: JS_MODULE@0..20
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..19
    0: JS_BOGUS_STATEMENT@0..19
      0: JS_DECORATOR_LIST@0..0
      1: ABSTRACT_KW@0..9 "abstract" [] [Whitespace(" ")]
      2: CLASS_KW@9..15 "class" [] [Whitespace(" ")]
      3: JS_IDENTIFIER_BINDING@15..17
        0: IDENT@15..17 "A" [] [Whitespace(" ")]
      4: L_CURLY@17..18 "{" [] []
      5: JS_CLASS_MEMBER_LIST@18..18
      6: R_CURLY@18..19 "}" [] []
  4: EOF@19..20 "" [Newline("\n")] []
--
abstract_class_in_js.js:1:1 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × abstract classes are a TypeScript only feature. Convert your file to a TypeScript file or remove the syntax.
  
  > 1 │ abstract class A {}
      │ ^^^^^^^^^^^^^^^^^^^
    2 │ 
  
  i TypeScript only syntax
  
--
abstract class A {}