biome_js_parser 0.5.7

Biome's JavaScript parser
Documentation
JsModule {
    bom_token: missing (optional),
    interpreter_token: missing (optional),
    directives: JsDirectiveList [],
    items: JsModuleItemList [
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@0..4 "let" [] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsIdentifierBinding {
                            name_token: IDENT@4..6 "a" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@6..8 "=" [] [Whitespace(" ")],
                            expression: JsArrowFunctionExpression {
                                async_token: ASYNC_KW@8..14 "async" [] [Whitespace(" ")],
                                type_parameters: missing (optional),
                                parameters: JsIdentifierBinding {
                                    name_token: IDENT@14..18 "foo" [] [Whitespace(" ")],
                                },
                                return_type_annotation: missing (optional),
                                fat_arrow_token: FAT_ARROW@18..21 "=>" [] [Whitespace(" ")],
                                body: JsFunctionBody {
                                    l_curly_token: L_CURLY@21..22 "{" [] [],
                                    directives: JsDirectiveList [],
                                    statements: JsStatementList [],
                                    r_curly_token: R_CURLY@22..23 "}" [] [],
                                },
                            },
                        },
                    },
                ],
            },
            semicolon_token: missing (optional),
        },
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@23..28 "let" [Newline("\n")] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsIdentifierBinding {
                            name_token: IDENT@28..30 "b" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@30..32 "=" [] [Whitespace(" ")],
                            expression: JsArrowFunctionExpression {
                                async_token: ASYNC_KW@32..38 "async" [] [Whitespace(" ")],
                                type_parameters: missing (optional),
                                parameters: JsParameters {
                                    l_paren_token: L_PAREN@38..39 "(" [] [],
                                    items: JsParameterList [
                                        JsFormalParameter {
                                            decorators: JsDecoratorList [],
                                            binding: JsIdentifierBinding {
                                                name_token: IDENT@39..42 "bar" [] [],
                                            },
                                            question_mark_token: missing (optional),
                                            type_annotation: missing (optional),
                                            initializer: missing (optional),
                                        },
                                    ],
                                    r_paren_token: R_PAREN@42..44 ")" [] [Whitespace(" ")],
                                },
                                return_type_annotation: missing (optional),
                                fat_arrow_token: FAT_ARROW@44..47 "=>" [] [Whitespace(" ")],
                                body: JsFunctionBody {
                                    l_curly_token: L_CURLY@47..48 "{" [] [],
                                    directives: JsDirectiveList [],
                                    statements: JsStatementList [],
                                    r_curly_token: R_CURLY@48..49 "}" [] [],
                                },
                            },
                        },
                    },
                ],
            },
            semicolon_token: missing (optional),
        },
        JsExpressionStatement {
            expression: JsArrowFunctionExpression {
                async_token: ASYNC_KW@49..56 "async" [Newline("\n")] [Whitespace(" ")],
                type_parameters: missing (optional),
                parameters: JsParameters {
                    l_paren_token: L_PAREN@56..57 "(" [] [],
                    items: JsParameterList [
                        JsFormalParameter {
                            decorators: JsDecoratorList [],
                            binding: JsIdentifierBinding {
                                name_token: IDENT@57..60 "foo" [] [],
                            },
                            question_mark_token: missing (optional),
                            type_annotation: missing (optional),
                            initializer: missing (optional),
                        },
                        COMMA@60..62 "," [] [Whitespace(" ")],
                        JsFormalParameter {
                            decorators: JsDecoratorList [],
                            binding: JsIdentifierBinding {
                                name_token: IDENT@62..65 "bar" [] [],
                            },
                            question_mark_token: missing (optional),
                            type_annotation: missing (optional),
                            initializer: missing (optional),
                        },
                        COMMA@65..67 "," [] [Whitespace(" ")],
                        JsRestParameter {
                            decorators: JsDecoratorList [],
                            dotdotdot_token: DOT3@67..70 "..." [] [],
                            binding: JsIdentifierBinding {
                                name_token: IDENT@70..73 "baz" [] [],
                            },
                            type_annotation: missing (optional),
                        },
                    ],
                    r_paren_token: R_PAREN@73..75 ")" [] [Whitespace(" ")],
                },
                return_type_annotation: missing (optional),
                fat_arrow_token: FAT_ARROW@75..78 "=>" [] [Whitespace(" ")],
                body: JsIdentifierExpression {
                    name: JsReferenceIdentifier {
                        value_token: IDENT@78..81 "foo" [] [],
                    },
                },
            },
            semicolon_token: missing (optional),
        },
    ],
    eof_token: EOF@81..82 "" [Newline("\n")] [],
}

0: JS_MODULE@0..82
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..81
    0: JS_VARIABLE_STATEMENT@0..23
      0: JS_VARIABLE_DECLARATION@0..23
        0: (empty)
        1: LET_KW@0..4 "let" [] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@4..23
          0: JS_VARIABLE_DECLARATOR@4..23
            0: JS_IDENTIFIER_BINDING@4..6
              0: IDENT@4..6 "a" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@6..23
              0: EQ@6..8 "=" [] [Whitespace(" ")]
              1: JS_ARROW_FUNCTION_EXPRESSION@8..23
                0: ASYNC_KW@8..14 "async" [] [Whitespace(" ")]
                1: (empty)
                2: JS_IDENTIFIER_BINDING@14..18
                  0: IDENT@14..18 "foo" [] [Whitespace(" ")]
                3: (empty)
                4: FAT_ARROW@18..21 "=>" [] [Whitespace(" ")]
                5: JS_FUNCTION_BODY@21..23
                  0: L_CURLY@21..22 "{" [] []
                  1: JS_DIRECTIVE_LIST@22..22
                  2: JS_STATEMENT_LIST@22..22
                  3: R_CURLY@22..23 "}" [] []
      1: (empty)
    1: JS_VARIABLE_STATEMENT@23..49
      0: JS_VARIABLE_DECLARATION@23..49
        0: (empty)
        1: LET_KW@23..28 "let" [Newline("\n")] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@28..49
          0: JS_VARIABLE_DECLARATOR@28..49
            0: JS_IDENTIFIER_BINDING@28..30
              0: IDENT@28..30 "b" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@30..49
              0: EQ@30..32 "=" [] [Whitespace(" ")]
              1: JS_ARROW_FUNCTION_EXPRESSION@32..49
                0: ASYNC_KW@32..38 "async" [] [Whitespace(" ")]
                1: (empty)
                2: JS_PARAMETERS@38..44
                  0: L_PAREN@38..39 "(" [] []
                  1: JS_PARAMETER_LIST@39..42
                    0: JS_FORMAL_PARAMETER@39..42
                      0: JS_DECORATOR_LIST@39..39
                      1: JS_IDENTIFIER_BINDING@39..42
                        0: IDENT@39..42 "bar" [] []
                      2: (empty)
                      3: (empty)
                      4: (empty)
                  2: R_PAREN@42..44 ")" [] [Whitespace(" ")]
                3: (empty)
                4: FAT_ARROW@44..47 "=>" [] [Whitespace(" ")]
                5: JS_FUNCTION_BODY@47..49
                  0: L_CURLY@47..48 "{" [] []
                  1: JS_DIRECTIVE_LIST@48..48
                  2: JS_STATEMENT_LIST@48..48
                  3: R_CURLY@48..49 "}" [] []
      1: (empty)
    2: JS_EXPRESSION_STATEMENT@49..81
      0: JS_ARROW_FUNCTION_EXPRESSION@49..81
        0: ASYNC_KW@49..56 "async" [Newline("\n")] [Whitespace(" ")]
        1: (empty)
        2: JS_PARAMETERS@56..75
          0: L_PAREN@56..57 "(" [] []
          1: JS_PARAMETER_LIST@57..73
            0: JS_FORMAL_PARAMETER@57..60
              0: JS_DECORATOR_LIST@57..57
              1: JS_IDENTIFIER_BINDING@57..60
                0: IDENT@57..60 "foo" [] []
              2: (empty)
              3: (empty)
              4: (empty)
            1: COMMA@60..62 "," [] [Whitespace(" ")]
            2: JS_FORMAL_PARAMETER@62..65
              0: JS_DECORATOR_LIST@62..62
              1: JS_IDENTIFIER_BINDING@62..65
                0: IDENT@62..65 "bar" [] []
              2: (empty)
              3: (empty)
              4: (empty)
            3: COMMA@65..67 "," [] [Whitespace(" ")]
            4: JS_REST_PARAMETER@67..73
              0: JS_DECORATOR_LIST@67..67
              1: DOT3@67..70 "..." [] []
              2: JS_IDENTIFIER_BINDING@70..73
                0: IDENT@70..73 "baz" [] []
              3: (empty)
          2: R_PAREN@73..75 ")" [] [Whitespace(" ")]
        3: (empty)
        4: FAT_ARROW@75..78 "=>" [] [Whitespace(" ")]
        5: JS_IDENTIFIER_EXPRESSION@78..81
          0: JS_REFERENCE_IDENTIFIER@78..81
            0: IDENT@78..81 "foo" [] []
      1: (empty)
  4: EOF@81..82 "" [Newline("\n")] []