biome_js_parser 0.5.7

Biome's JavaScript parser
Documentation
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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: JsStringLiteralExpression {
                                value_token: JS_STRING_LITERAL@8..11 "\"b\"" [] [],
                            },
                        },
                    },
                ],
            },
            semicolon_token: SEMICOLON@11..12 ";" [] [],
        },
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@12..17 "let" [Newline("\n")] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsArrayBindingPattern {
                            l_brack_token: L_BRACK@17..18 "[" [] [],
                            elements: JsArrayBindingPatternElementList [
                                JsArrayBindingPatternElement {
                                    pattern: JsIdentifierBinding {
                                        name_token: IDENT@18..19 "c" [] [],
                                    },
                                    init: missing (optional),
                                },
                                COMMA@19..21 "," [] [Whitespace(" ")],
                                JsArrayBindingPatternElement {
                                    pattern: JsIdentifierBinding {
                                        name_token: IDENT@21..22 "b" [] [],
                                    },
                                    init: missing (optional),
                                },
                            ],
                            r_brack_token: R_BRACK@22..24 "]" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@24..26 "=" [] [Whitespace(" ")],
                            expression: JsArrayExpression {
                                l_brack_token: L_BRACK@26..27 "[" [] [],
                                elements: JsArrayElementList [
                                    JsNumberLiteralExpression {
                                        value_token: JS_NUMBER_LITERAL@27..28 "1" [] [],
                                    },
                                    COMMA@28..30 "," [] [Whitespace(" ")],
                                    JsNumberLiteralExpression {
                                        value_token: JS_NUMBER_LITERAL@30..31 "2" [] [],
                                    },
                                ],
                                r_brack_token: R_BRACK@31..32 "]" [] [],
                            },
                        },
                    },
                ],
            },
            semicolon_token: SEMICOLON@32..33 ";" [] [],
        },
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@33..38 "let" [Newline("\n")] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsArrayBindingPattern {
                            l_brack_token: L_BRACK@38..39 "[" [] [],
                            elements: JsArrayBindingPatternElementList [
                                JsArrayBindingPatternElement {
                                    pattern: JsIdentifierBinding {
                                        name_token: IDENT@39..40 "d" [] [],
                                    },
                                    init: missing (optional),
                                },
                                COMMA@40..42 "," [] [Whitespace(" ")],
                                JsArrayBindingPatternRestElement {
                                    dotdotdot_token: DOT3@42..45 "..." [] [],
                                    pattern: JsIdentifierBinding {
                                        name_token: IDENT@45..49 "abcd" [] [],
                                    },
                                },
                            ],
                            r_brack_token: R_BRACK@49..51 "]" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@51..53 "=" [] [Whitespace(" ")],
                            expression: JsArrayExpression {
                                l_brack_token: L_BRACK@53..54 "[" [] [],
                                elements: JsArrayElementList [
                                    JsNumberLiteralExpression {
                                        value_token: JS_NUMBER_LITERAL@54..55 "1" [] [],
                                    },
                                ],
                                r_brack_token: R_BRACK@55..56 "]" [] [],
                            },
                        },
                    },
                ],
            },
            semicolon_token: SEMICOLON@56..57 ";" [] [],
        },
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@57..62 "let" [Newline("\n")] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsArrayBindingPattern {
                            l_brack_token: L_BRACK@62..63 "[" [] [],
                            elements: JsArrayBindingPatternElementList [
                                JsArrayBindingPatternElement {
                                    pattern: JsIdentifierBinding {
                                        name_token: IDENT@63..65 "e" [] [Whitespace(" ")],
                                    },
                                    init: JsInitializerClause {
                                        eq_token: EQ@65..67 "=" [] [Whitespace(" ")],
                                        expression: JsStringLiteralExpression {
                                            value_token: JS_STRING_LITERAL@67..76 "\"default\"" [] [],
                                        },
                                    },
                                },
                                COMMA@76..78 "," [] [Whitespace(" ")],
                                JsArrayBindingPatternElement {
                                    pattern: JsIdentifierBinding {
                                        name_token: IDENT@78..79 "x" [] [],
                                    },
                                    init: missing (optional),
                                },
                            ],
                            r_brack_token: R_BRACK@79..81 "]" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@81..83 "=" [] [Whitespace(" ")],
                            expression: JsArrayExpression {
                                l_brack_token: L_BRACK@83..84 "[" [] [],
                                elements: JsArrayElementList [],
                                r_brack_token: R_BRACK@84..85 "]" [] [],
                            },
                        },
                    },
                ],
            },
            semicolon_token: missing (optional),
        },
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@85..90 "let" [Newline("\n")] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsArrayBindingPattern {
                            l_brack_token: L_BRACK@90..91 "[" [] [],
                            elements: JsArrayBindingPatternElementList [
                                JsArrayHole,
                                COMMA@91..93 "," [] [Whitespace(" ")],
                                JsArrayBindingPatternElement {
                                    pattern: JsIdentifierBinding {
                                        name_token: IDENT@93..94 "f" [] [],
                                    },
                                    init: missing (optional),
                                },
                                COMMA@94..96 "," [] [Whitespace(" ")],
                                JsArrayBindingPatternRestElement {
                                    dotdotdot_token: DOT3@96..99 "..." [] [],
                                    pattern: JsIdentifierBinding {
                                        name_token: IDENT@99..103 "rest" [] [],
                                    },
                                },
                            ],
                            r_brack_token: R_BRACK@103..105 "]" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@105..107 "=" [] [Whitespace(" ")],
                            expression: JsArrayExpression {
                                l_brack_token: L_BRACK@107..108 "[" [] [],
                                elements: JsArrayElementList [],
                                r_brack_token: R_BRACK@108..109 "]" [] [],
                            },
                        },
                    },
                ],
            },
            semicolon_token: missing (optional),
        },
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@109..114 "let" [Newline("\n")] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsArrayBindingPattern {
                            l_brack_token: L_BRACK@114..115 "[" [] [],
                            elements: JsArrayBindingPatternElementList [
                                JsArrayBindingPatternElement {
                                    pattern: JsArrayBindingPattern {
                                        l_brack_token: L_BRACK@115..116 "[" [] [],
                                        elements: JsArrayBindingPatternElementList [
                                            JsArrayBindingPatternRestElement {
                                                dotdotdot_token: DOT3@116..119 "..." [] [],
                                                pattern: JsIdentifierBinding {
                                                    name_token: IDENT@119..124 "rest2" [] [],
                                                },
                                            },
                                        ],
                                        r_brack_token: R_BRACK@124..125 "]" [] [],
                                    },
                                    init: missing (optional),
                                },
                                COMMA@125..127 "," [] [Whitespace(" ")],
                                JsArrayBindingPatternElement {
                                    pattern: JsObjectBindingPattern {
                                        l_curly_token: L_CURLY@127..129 "{" [] [Whitespace(" ")],
                                        properties: JsObjectBindingPatternPropertyList [
                                            JsObjectBindingPatternShorthandProperty {
                                                identifier: JsIdentifierBinding {
                                                    name_token: IDENT@129..131 "g" [] [Whitespace(" ")],
                                                },
                                                init: missing (optional),
                                            },
                                        ],
                                        r_curly_token: R_CURLY@131..132 "}" [] [],
                                    },
                                    init: missing (optional),
                                },
                            ],
                            r_brack_token: R_BRACK@132..134 "]" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@134..136 "=" [] [Whitespace(" ")],
                            expression: JsArrayExpression {
                                l_brack_token: L_BRACK@136..137 "[" [] [],
                                elements: JsArrayElementList [],
                                r_brack_token: R_BRACK@137..138 "]" [] [],
                            },
                        },
                    },
                ],
            },
            semicolon_token: missing (optional),
        },
    ],
    eof_token: EOF@138..139 "" [Newline("\n")] [],
}

0: JS_MODULE@0..139
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..138
    0: JS_VARIABLE_STATEMENT@0..12
      0: JS_VARIABLE_DECLARATION@0..11
        0: (empty)
        1: LET_KW@0..4 "let" [] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@4..11
          0: JS_VARIABLE_DECLARATOR@4..11
            0: JS_IDENTIFIER_BINDING@4..6
              0: IDENT@4..6 "a" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@6..11
              0: EQ@6..8 "=" [] [Whitespace(" ")]
              1: JS_STRING_LITERAL_EXPRESSION@8..11
                0: JS_STRING_LITERAL@8..11 "\"b\"" [] []
      1: SEMICOLON@11..12 ";" [] []
    1: JS_VARIABLE_STATEMENT@12..33
      0: JS_VARIABLE_DECLARATION@12..32
        0: (empty)
        1: LET_KW@12..17 "let" [Newline("\n")] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@17..32
          0: JS_VARIABLE_DECLARATOR@17..32
            0: JS_ARRAY_BINDING_PATTERN@17..24
              0: L_BRACK@17..18 "[" [] []
              1: JS_ARRAY_BINDING_PATTERN_ELEMENT_LIST@18..22
                0: JS_ARRAY_BINDING_PATTERN_ELEMENT@18..19
                  0: JS_IDENTIFIER_BINDING@18..19
                    0: IDENT@18..19 "c" [] []
                  1: (empty)
                1: COMMA@19..21 "," [] [Whitespace(" ")]
                2: JS_ARRAY_BINDING_PATTERN_ELEMENT@21..22
                  0: JS_IDENTIFIER_BINDING@21..22
                    0: IDENT@21..22 "b" [] []
                  1: (empty)
              2: R_BRACK@22..24 "]" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@24..32
              0: EQ@24..26 "=" [] [Whitespace(" ")]
              1: JS_ARRAY_EXPRESSION@26..32
                0: L_BRACK@26..27 "[" [] []
                1: JS_ARRAY_ELEMENT_LIST@27..31
                  0: JS_NUMBER_LITERAL_EXPRESSION@27..28
                    0: JS_NUMBER_LITERAL@27..28 "1" [] []
                  1: COMMA@28..30 "," [] [Whitespace(" ")]
                  2: JS_NUMBER_LITERAL_EXPRESSION@30..31
                    0: JS_NUMBER_LITERAL@30..31 "2" [] []
                2: R_BRACK@31..32 "]" [] []
      1: SEMICOLON@32..33 ";" [] []
    2: JS_VARIABLE_STATEMENT@33..57
      0: JS_VARIABLE_DECLARATION@33..56
        0: (empty)
        1: LET_KW@33..38 "let" [Newline("\n")] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@38..56
          0: JS_VARIABLE_DECLARATOR@38..56
            0: JS_ARRAY_BINDING_PATTERN@38..51
              0: L_BRACK@38..39 "[" [] []
              1: JS_ARRAY_BINDING_PATTERN_ELEMENT_LIST@39..49
                0: JS_ARRAY_BINDING_PATTERN_ELEMENT@39..40
                  0: JS_IDENTIFIER_BINDING@39..40
                    0: IDENT@39..40 "d" [] []
                  1: (empty)
                1: COMMA@40..42 "," [] [Whitespace(" ")]
                2: JS_ARRAY_BINDING_PATTERN_REST_ELEMENT@42..49
                  0: DOT3@42..45 "..." [] []
                  1: JS_IDENTIFIER_BINDING@45..49
                    0: IDENT@45..49 "abcd" [] []
              2: R_BRACK@49..51 "]" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@51..56
              0: EQ@51..53 "=" [] [Whitespace(" ")]
              1: JS_ARRAY_EXPRESSION@53..56
                0: L_BRACK@53..54 "[" [] []
                1: JS_ARRAY_ELEMENT_LIST@54..55
                  0: JS_NUMBER_LITERAL_EXPRESSION@54..55
                    0: JS_NUMBER_LITERAL@54..55 "1" [] []
                2: R_BRACK@55..56 "]" [] []
      1: SEMICOLON@56..57 ";" [] []
    3: JS_VARIABLE_STATEMENT@57..85
      0: JS_VARIABLE_DECLARATION@57..85
        0: (empty)
        1: LET_KW@57..62 "let" [Newline("\n")] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@62..85
          0: JS_VARIABLE_DECLARATOR@62..85
            0: JS_ARRAY_BINDING_PATTERN@62..81
              0: L_BRACK@62..63 "[" [] []
              1: JS_ARRAY_BINDING_PATTERN_ELEMENT_LIST@63..79
                0: JS_ARRAY_BINDING_PATTERN_ELEMENT@63..76
                  0: JS_IDENTIFIER_BINDING@63..65
                    0: IDENT@63..65 "e" [] [Whitespace(" ")]
                  1: JS_INITIALIZER_CLAUSE@65..76
                    0: EQ@65..67 "=" [] [Whitespace(" ")]
                    1: JS_STRING_LITERAL_EXPRESSION@67..76
                      0: JS_STRING_LITERAL@67..76 "\"default\"" [] []
                1: COMMA@76..78 "," [] [Whitespace(" ")]
                2: JS_ARRAY_BINDING_PATTERN_ELEMENT@78..79
                  0: JS_IDENTIFIER_BINDING@78..79
                    0: IDENT@78..79 "x" [] []
                  1: (empty)
              2: R_BRACK@79..81 "]" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@81..85
              0: EQ@81..83 "=" [] [Whitespace(" ")]
              1: JS_ARRAY_EXPRESSION@83..85
                0: L_BRACK@83..84 "[" [] []
                1: JS_ARRAY_ELEMENT_LIST@84..84
                2: R_BRACK@84..85 "]" [] []
      1: (empty)
    4: JS_VARIABLE_STATEMENT@85..109
      0: JS_VARIABLE_DECLARATION@85..109
        0: (empty)
        1: LET_KW@85..90 "let" [Newline("\n")] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@90..109
          0: JS_VARIABLE_DECLARATOR@90..109
            0: JS_ARRAY_BINDING_PATTERN@90..105
              0: L_BRACK@90..91 "[" [] []
              1: JS_ARRAY_BINDING_PATTERN_ELEMENT_LIST@91..103
                0: JS_ARRAY_HOLE@91..91
                1: COMMA@91..93 "," [] [Whitespace(" ")]
                2: JS_ARRAY_BINDING_PATTERN_ELEMENT@93..94
                  0: JS_IDENTIFIER_BINDING@93..94
                    0: IDENT@93..94 "f" [] []
                  1: (empty)
                3: COMMA@94..96 "," [] [Whitespace(" ")]
                4: JS_ARRAY_BINDING_PATTERN_REST_ELEMENT@96..103
                  0: DOT3@96..99 "..." [] []
                  1: JS_IDENTIFIER_BINDING@99..103
                    0: IDENT@99..103 "rest" [] []
              2: R_BRACK@103..105 "]" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@105..109
              0: EQ@105..107 "=" [] [Whitespace(" ")]
              1: JS_ARRAY_EXPRESSION@107..109
                0: L_BRACK@107..108 "[" [] []
                1: JS_ARRAY_ELEMENT_LIST@108..108
                2: R_BRACK@108..109 "]" [] []
      1: (empty)
    5: JS_VARIABLE_STATEMENT@109..138
      0: JS_VARIABLE_DECLARATION@109..138
        0: (empty)
        1: LET_KW@109..114 "let" [Newline("\n")] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@114..138
          0: JS_VARIABLE_DECLARATOR@114..138
            0: JS_ARRAY_BINDING_PATTERN@114..134
              0: L_BRACK@114..115 "[" [] []
              1: JS_ARRAY_BINDING_PATTERN_ELEMENT_LIST@115..132
                0: JS_ARRAY_BINDING_PATTERN_ELEMENT@115..125
                  0: JS_ARRAY_BINDING_PATTERN@115..125
                    0: L_BRACK@115..116 "[" [] []
                    1: JS_ARRAY_BINDING_PATTERN_ELEMENT_LIST@116..124
                      0: JS_ARRAY_BINDING_PATTERN_REST_ELEMENT@116..124
                        0: DOT3@116..119 "..." [] []
                        1: JS_IDENTIFIER_BINDING@119..124
                          0: IDENT@119..124 "rest2" [] []
                    2: R_BRACK@124..125 "]" [] []
                  1: (empty)
                1: COMMA@125..127 "," [] [Whitespace(" ")]
                2: JS_ARRAY_BINDING_PATTERN_ELEMENT@127..132
                  0: JS_OBJECT_BINDING_PATTERN@127..132
                    0: L_CURLY@127..129 "{" [] [Whitespace(" ")]
                    1: JS_OBJECT_BINDING_PATTERN_PROPERTY_LIST@129..131
                      0: JS_OBJECT_BINDING_PATTERN_SHORTHAND_PROPERTY@129..131
                        0: JS_IDENTIFIER_BINDING@129..131
                          0: IDENT@129..131 "g" [] [Whitespace(" ")]
                        1: (empty)
                    2: R_CURLY@131..132 "}" [] []
                  1: (empty)
              2: R_BRACK@132..134 "]" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@134..138
              0: EQ@134..136 "=" [] [Whitespace(" ")]
              1: JS_ARRAY_EXPRESSION@136..138
                0: L_BRACK@136..137 "[" [] []
                1: JS_ARRAY_ELEMENT_LIST@137..137
                2: R_BRACK@137..138 "]" [] []
      1: (empty)
  4: EOF@138..139 "" [Newline("\n")] []