biome_js_parser 0.5.7

JsModule {
    bom_token: missing (optional),
    interpreter_token: missing (optional),
    directives: JsDirectiveList [],
    items: JsModuleItemList [
        JsBogusStatement {
            items: [
                JsDecoratorList [],
                CLASS_KW@0..6 "class" [] [Whitespace(" ")],
                JsIdentifierBinding {
                    name_token: IDENT@6..8 "A" [] [Whitespace(" ")],
                },
                JsExtendsClause {
                    extends_token: EXTENDS_KW@8..16 "extends" [] [Whitespace(" ")],
                    super_class: JsIdentifierExpression {
                        name: JsReferenceIdentifier {
                            value_token: IDENT@16..20 "bar" [] [Whitespace(" ")],
                        },
                    },
                    type_arguments: missing (optional),
                },
                JsExtendsClause {
                    extends_token: EXTENDS_KW@20..28 "extends" [] [Whitespace(" ")],
                    super_class: JsIdentifierExpression {
                        name: JsReferenceIdentifier {
                            value_token: IDENT@28..32 "foo" [] [Whitespace(" ")],
                        },
                    },
                    type_arguments: missing (optional),
                },
                L_CURLY@32..33 "{" [] [],
                JsClassMemberList [],
                R_CURLY@33..34 "}" [] [],
            ],
        },
        JsBogusStatement {
            items: [
                JsDecoratorList [],
                CLASS_KW@34..41 "class" [Newline("\n")] [Whitespace(" ")],
                JsIdentifierBinding {
                    name_token: IDENT@41..43 "B" [] [Whitespace(" ")],
                },
                JsBogus {
                    items: [
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                        JsIdentifierExpression {
                            name: JsReferenceIdentifier {
                                value_token: IDENT@51..54 "bar" [] [],
                            },
                        },
                        COMMA@54..56 "," [] [Whitespace(" ")],
                        JsBogus {
                            items: [
                                JsIdentifierExpression {
                                    name: JsReferenceIdentifier {
                                        value_token: IDENT@56..60 "foo" [] [Whitespace(" ")],
                                    },
                                },
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                        },
                    ],
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                L_CURLY@60..61 "{" [] [],
                JsClassMemberList [],
                R_CURLY@61..62 "}" [] [],
            ],
        },
        JsBogusStatement {
            items: [
                JsDecoratorList [],
                CLASS_KW@62..69 "class" [Newline("\n")] [Whitespace(" ")],
                JsIdentifierBinding {
                    name_token: IDENT@69..71 "C" [] [Whitespace(" ")],
                },
                JsBogus {
                    items: [
                        IMPLEMENTS_KW@71..82 "implements" [] [Whitespace(" ")],
                        TsTypeList [
                            TsNameWithTypeArguments {
                                name: JsReferenceIdentifier {
                                    value_token: IDENT@82..84 "B" [] [Whitespace(" ")],
                                },
                                type_arguments: missing (optional),
                            },
                        ],
                    ],
                },
                L_CURLY@84..85 "{" [] [],
                JsClassMemberList [],
                R_CURLY@85..86 "}" [] [],
            ],
        },
    ],
    eof_token: EOF@86..87 "" [Newline("\n")] [],
}

0: JS_MODULE@0..87
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..86
    0: JS_BOGUS_STATEMENT@0..34
      0: JS_DECORATOR_LIST@0..0
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      2: JS_IDENTIFIER_BINDING@6..8
        0: IDENT@6..8 "A" [] [Whitespace(" ")]
      3: JS_EXTENDS_CLAUSE@8..20
        0: EXTENDS_KW@8..16 "extends" [] [Whitespace(" ")]
        1: JS_IDENTIFIER_EXPRESSION@16..20
          0: JS_REFERENCE_IDENTIFIER@16..20
            0: IDENT@16..20 "bar" [] [Whitespace(" ")]
        2: (empty)
      4: JS_EXTENDS_CLAUSE@20..32
        0: EXTENDS_KW@20..28 "extends" [] [Whitespace(" ")]
        1: JS_IDENTIFIER_EXPRESSION@28..32
          0: JS_REFERENCE_IDENTIFIER@28..32
            0: IDENT@28..32 "foo" [] [Whitespace(" ")]
        2: (empty)
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      6: JS_CLASS_MEMBER_LIST@33..33
      7: R_CURLY@33..34 "}" [] []
    1: JS_BOGUS_STATEMENT@34..62
      0: JS_DECORATOR_LIST@34..34
      1: CLASS_KW@34..41 "class" [Newline("\n")] [Whitespace(" ")]
      2: JS_IDENTIFIER_BINDING@41..43
        0: IDENT@41..43 "B" [] [Whitespace(" ")]
      3: JS_BOGUS@43..60
        0: EXTENDS_KW@43..51 "extends" [] [Whitespace(" ")]
        1: JS_IDENTIFIER_EXPRESSION@51..54
          0: JS_REFERENCE_IDENTIFIER@51..54
            0: IDENT@51..54 "bar" [] []
        2: COMMA@54..56 "," [] [Whitespace(" ")]
        3: JS_BOGUS@56..60
          0: JS_IDENTIFIER_EXPRESSION@56..60
            0: JS_REFERENCE_IDENTIFIER@56..60
              0: IDENT@56..60 "foo" [] [Whitespace(" ")]
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      5: JS_CLASS_MEMBER_LIST@61..61
      6: R_CURLY@61..62 "}" [] []
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      1: CLASS_KW@62..69 "class" [Newline("\n")] [Whitespace(" ")]
      2: JS_IDENTIFIER_BINDING@69..71
        0: IDENT@69..71 "C" [] [Whitespace(" ")]
      3: JS_BOGUS@71..84
        0: IMPLEMENTS_KW@71..82 "implements" [] [Whitespace(" ")]
        1: TS_TYPE_LIST@82..84
          0: TS_NAME_WITH_TYPE_ARGUMENTS@82..84
            0: JS_REFERENCE_IDENTIFIER@82..84
              0: IDENT@82..84 "B" [] [Whitespace(" ")]
            1: (empty)
      4: L_CURLY@84..85 "{" [] []
      5: JS_CLASS_MEMBER_LIST@85..85
      6: R_CURLY@85..86 "}" [] []
  4: EOF@86..87 "" [Newline("\n")] []
--
class_extends_err.js:1:21 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × 'extends' clause already seen.
  
  > 1 │ class A extends bar extends foo {}
      │                     ^^^^^^^^^^^
    2 │ class B extends bar, foo {}
    3 │ class C implements B {}
  
  i first 'extends' clause
  
  > 1 │ class A extends bar extends foo {}
      │         ^^^^^^^^^^^
    2 │ class B extends bar, foo {}
    3 │ class C implements B {}
  
--
class_extends_err.js:2:22 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Classes can only extend a single class.
  
    1 │ class A extends bar extends foo {}
  > 2 │ class B extends bar, foo {}
      │                      ^^^
    3 │ class C implements B {}
    4 │ 
  
--
class_extends_err.js:3:9 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × classes can only implement interfaces in TypeScript files
  
    1 │ class A extends bar extends foo {}
    2 │ class B extends bar, foo {}
  > 3 │ class C implements B {}
      │         ^^^^^^^^^^^^
    4 │ 
  
--
class A extends bar extends foo {}
class B extends bar, foo {}
class C implements B {}