buntis

/** * The token types and attributes. */ export const enum Token { Type = 0xff, /* Precedence for binary operators (always positive) */ PrecStart = 8, Precedence = 15 << PrecStart, // 8-11 /* Attribute names */ Contextual = 1 << 12, Keywords = 1 << 13, FutureReserved = 1 << 14, IsIdentifier = (1 << 15) | Contextual, IdentifierOrKeyword = (1 << 16) | IsIdentifier | Keywords, IsExpressionStart = 1 << 17, IsStatementStart = (1 << 18) | IsIdentifier | IsExpressionStart, IsModifier = 1 << 19, IsLogical = 1 << 20, IsAutoSemicolon = 1 << 21, IsPatternStart = 1 << 22, // Start of pattern, '[' or '{' IsAssignOp = 1 << 23, IsBinaryOp = (1 << 24) | IsExpressionStart, IsUnaryOp = (1 << 25) | IsExpressionStart, IsUpdateOp = (1 << 26) | IsExpressionStart, IsDeclarationStatement = 1 << 27, IsStringOrNumber = 1 << 28, IsCoalesc = 1 << 29, /* Node types */ EndOfSource = 0, // Pseudo /* Constants/Bindings */ Identifier = 1 | IsExpressionStart | IsIdentifier, NumericLiteral = 2 | IsExpressionStart | IsStringOrNumber, StringLiteral = 3 | IsExpressionStart | IsStringOrNumber, RegularExpression = 4 | IsExpressionStart, FalseKeyword = 5 | Keywords | IsExpressionStart, TrueKeyword = 6 | Keywords | IsExpressionStart, NullKeyword = 7 | Keywords | IsExpressionStart, /* Template nodes */ TemplateCont = 8 | IsExpressionStart, TemplateTail = 9 | IsExpressionStart, /* Punctuators */ Arrow = 10, // => LeftParen = 11 | IsExpressionStart, // ( LeftBrace = 12 | IsExpressionStart | IsPatternStart, // { Period = 13, // . Ellipsis = 14, // ... RightBrace = 15 | IsAutoSemicolon, // } RightParen = 16, // ) Semicolon = 17 | IsAutoSemicolon, // ; Comma = 18, // , LeftBracket = 19 | IsExpressionStart | IsPatternStart, // [ RightBracket = 20, // ] Colon = 21, // : QuestionMark = 22, // ? QuestionMarkPeriod = 23, // ?. SingleQuote = 24, // ' DoubleQuote = 25, // " JSXClose = 26, // </ JSXAutoClose = 27, // /> /* Update operators */ Increment = 28 | IsUpdateOp, // ++ Decrement = 29 | IsUpdateOp, // -- /* Assign operators */ Assign = 30 | IsAssignOp, // = ShiftLeftAssign = 31 | IsAssignOp, // <<= ShiftRightAssign = 32 | IsAssignOp, // >>= LogicalShiftRightAssign = 33 | IsAssignOp, // >>>= ExponentiateAssign = 34 | IsAssignOp, // **= AddAssign = 35 | IsAssignOp, // += SubtractAssign = 36 | IsAssignOp, // -= MultiplyAssign = 37 | IsAssignOp, // *= DivideAssign = 38 | IsAssignOp | IsExpressionStart, // /= ModuloAssign = 39 | IsAssignOp, // %= BitwiseXorAssign = 40 | IsAssignOp, // ^= BitwiseOrAssign = 41 | IsAssignOp, // |= BitwiseAndAssign = 42 | IsAssignOp, // &= /* Unary/binary operators */ TypeOfKeyword = 43 | IsUnaryOp | Keywords, DeleteKeyword = 44 | IsUnaryOp | Keywords, VoidKeyword = 45 | IsUnaryOp | Keywords, Negate = 46 | IsUnaryOp, // ! Complement = 47 | IsUnaryOp, // ~ Add = 48 | IsUnaryOp | IsBinaryOp | (10 << PrecStart), // + Subtract = 49 | IsUnaryOp | IsBinaryOp | (10 << PrecStart), // - InKeyword = 50 | IsBinaryOp | (8 << PrecStart) | Keywords, InstanceofKeyword = 51 | IsBinaryOp | (8 << PrecStart) | Keywords, Multiply = 52 | IsBinaryOp | (11 << PrecStart), // * Modulo = 53 | IsBinaryOp | (11 << PrecStart), // % Divide = 54 | IsBinaryOp | IsExpressionStart | (11 << PrecStart), // / Exponentiate = 55 | IsBinaryOp | (12 << PrecStart), // ** LogicalAnd = 56 | IsBinaryOp | IsLogical | (3 << PrecStart), // && LogicalOr = 57 | IsBinaryOp | IsLogical | (2 << PrecStart), // || StrictEqual = 58 | IsBinaryOp | (7 << PrecStart), // === StrictNotEqual = 59 | IsBinaryOp | (7 << PrecStart), // !== LooseEqual = 60 | IsBinaryOp | (7 << PrecStart), // == LooseNotEqual = 61 | IsBinaryOp | (7 << PrecStart), // != LessThanOrEqual = 62 | IsBinaryOp | (7 << PrecStart), // <= GreaterThanOrEqual = 63 | IsBinaryOp | (7 << PrecStart), // >= LessThan = 64 | IsBinaryOp | IsExpressionStart | (8 << PrecStart), // < GreaterThan = 65 | IsBinaryOp | (8 << PrecStart), // > ShiftLeft = 66 | IsBinaryOp | (9 << PrecStart), // << ShiftRight = 67 | IsBinaryOp | (9 << PrecStart), // >> LogicalShiftRight = 68 | IsBinaryOp | (9 << PrecStart), // >>> BitwiseAnd = 69 | IsBinaryOp | (6 << PrecStart), // & BitwiseOr = 70 | IsBinaryOp | (4 << PrecStart), // | BitwiseXor = 71 | IsBinaryOp | (5 << PrecStart), // ^ Coalesce = 72 | IsBinaryOp | IsCoalesc | (1 << PrecStart), // ?. /* Variable declaration kinds */ VarKeyword = 73 | IsExpressionStart | Keywords | IsDeclarationStatement, LetKeyword = 74 | IsExpressionStart | FutureReserved | IsIdentifier, ConstKeyword = 75 | IsExpressionStart | Keywords | IsDeclarationStatement, /* Other Keywords words */ BreakKeyword = 76 | Keywords | IsStatementStart, CaseKeyword = 77 | Keywords | IsStatementStart, CatchKeyword = 78 | Keywords | IsStatementStart, ClassKeyword = 79 | Keywords | IsExpressionStart, ContinueKeyword = 80 | Keywords | IsStatementStart, DebuggerKeyword = 81 | Keywords | IsStatementStart, DefaultKeyword = 82 | Keywords | IsStatementStart, DoKeyword = 83 | Keywords | IsStatementStart, ElseKeyword = 84 | Keywords | IsStatementStart, ExportKeyword = 85 | Keywords | IsStatementStart | IsDeclarationStatement, ExtendsKeyword = 86 | Keywords, FinallyKeyword = 87 | Keywords | IsStatementStart, ForKeyword = 88 | Keywords | IsStatementStart, FunctionKeyword = 89 | Keywords | IsExpressionStart, IfKeyword = 90 | Keywords | IsStatementStart, ImportKeyword = 91 | Keywords | IsExpressionStart, NewKeyword = 92 | Keywords | IsExpressionStart, ReturnKeyword = 93 | Keywords | IsStatementStart, SuperKeyword = 94 | Keywords | IsExpressionStart, SwitchKeyword = 95 | Keywords | IsExpressionStart, ThisKeyword = 96 | Keywords | IsExpressionStart, ThrowKeyword = 97 | Keywords | IsStatementStart, TryKeyword = 98 | Keywords | IsStatementStart, WhileKeyword = 99 | Keywords | IsStatementStart, WithKeyword = 100 | Keywords | IsStatementStart, /* Strict mode Keywords words */ ImplementsKeyword = 101 | FutureReserved, InterfaceKeyword = 102 | FutureReserved | IsDeclarationStatement | IsStatementStart, PackageKeyword = 103 | FutureReserved, PrivateKeyword = 104 | FutureReserved | IsModifier, ProtectedKeyword = 105 | FutureReserved | IsModifier, PublicKeyword = 106 | FutureReserved | IsModifier, StaticKeyword = 107 | FutureReserved | IsModifier, YieldKeyword = 108 | FutureReserved | IsExpressionStart | IsIdentifier, /* Contextual keywords */ AsKeyword = 109 | Contextual | IsBinaryOp | (11 << PrecStart), AsyncKeyword = 110 | Contextual | IsStatementStart, AwaitKeyword = 111 | Contextual | IsExpressionStart | IsIdentifier, ConstructorKeyword = 112 | Contextual, GetKeyword = 113 | Contextual, SetKeyword = 114 | Contextual, FromKeyword = 115 | Contextual, OfKeyword = 116 | Contextual, /* Others */ WhiteSpace = 117, CarriageReturn = 118, LineFeed = 119, LeadingZero = 120, Error = 121, PrivateField = 122, BigIntLiteral = 123, EnumKeyword = 124 | IsDeclarationStatement | Token.Keywords, Backslash = 125, /* TypeScript */ DeclareKeyword = 126 | IsIdentifier, TypeKeyword = 127 | IsIdentifier | IsDeclarationStatement, AbstractKeyword = 128 | IsIdentifier | IsDeclarationStatement | IsModifier, NamespaceKeyword = 129 | IsIdentifier | IsDeclarationStatement, ModuleKeyword = 130 | IsIdentifier | IsDeclarationStatement, GlobalKeyword = 131 | IsIdentifier | IsDeclarationStatement, KeyOfKeyword = 132 | IsIdentifier, UniqueKeyword = 133 | IsIdentifier, IsKeyword = 134 | IsIdentifier, ReadOnlyKeyword = 135 | IsIdentifier | IsModifier, InferKeyword = 136 | IsIdentifier, RequireKeyword = 137 | IsIdentifier, AssertsKeyword = 138, /* Escapes */ EscapedStrictReserved = 139, EscapedKeyword = 140, /* JSX */ JSXText = 141, /* Others */ At = 142 } // Note: this *must* be kept in sync with the enum's order. // // It exploits the enum value ordering, and it's necessarily a complete and // utter hack. // // All to lower it to a single monomorphic array access. export const KeywordDescTable = [ 'end of source', /* Constants/Bindings */ 'identifier', 'number', 'string', 'regular expression', 'false', 'true', 'null', /* Template nodes */ 'template continuation', 'template end', /* Punctuators */ '=>', '(', '{', '.', '...', '}', ')', ';', ',', '[', ']', ':', '?', '?.', "'", '"', '</', '/>', /* Update operators */ '++', '--', /* Assign operators */ '=', '<<=', '>>=', '>>>=', '**=', '+=', '-=', '*=', '/=', '%=', '^=', '|=', '&=', /* Unary/binary operators */ 'typeof', 'delete', 'void', '!', '~', '+', '-', 'in', 'instanceof', '*', '%', '/', '**', '&&', '||', '===', '!==', '==', '!=', '<=', '>=', '<', '>', '<<', '>>', '>>>', '&', '|', '^', '?.', /* Variable declaration kinds */ 'var', 'let', 'const', /* Other Keywords words */ 'break', 'case', 'catch', 'class', 'continue', 'debugger', 'default', 'do', 'else', 'export', 'extends', 'finally', 'for', 'function', 'if', 'import', 'new', 'return', 'super', 'switch', 'this', 'throw', 'try', 'while', 'with', /* Strict mode reserved words */ 'implements', 'interface', 'package', 'private', 'protected', 'public', 'static', 'yield', /* Contextual keywords */ 'as', 'async', 'await', 'constructor', 'get', 'set', 'from', 'of', /* Others */ 'Whitespace', 'CarriageReturn', 'LineFeed', 'LeadingZero', 'Error', '#', 'BigIntLiteral', 'enum', 'Backslash', /* TypeScript */ 'declare', 'type', 'abstract', 'namespace', 'module', 'global', 'keyof', 'unique', 'is', 'readonly', 'infer', 'require', 'asserts', /* Escapes */ 'EscapedStrictReserved', 'EscapedKeyword', /* JSX */ 'JSXText', 'At' ]; // Normal object is much faster than Object.create(null), even with typeof check to avoid Object.prototype interference export const descKeywordTable: { [key: string]: Token } = Object.create(null, { this: { value: Token.ThisKeyword }, function: { value: Token.FunctionKeyword }, if: { value: Token.IfKeyword }, return: { value: Token.ReturnKeyword }, var: { value: Token.VarKeyword }, else: { value: Token.ElseKeyword }, for: { value: Token.ForKeyword }, new: { value: Token.NewKeyword }, in: { value: Token.InKeyword }, typeof: { value: Token.TypeOfKeyword }, while: { value: Token.WhileKeyword }, case: { value: Token.CaseKeyword }, break: { value: Token.BreakKeyword }, try: { value: Token.TryKeyword }, catch: { value: Token.CatchKeyword }, delete: { value: Token.DeleteKeyword }, throw: { value: Token.ThrowKeyword }, switch: { value: Token.SwitchKeyword }, continue: { value: Token.ContinueKeyword }, default: { value: Token.DefaultKeyword }, instanceof: { value: Token.InstanceofKeyword }, do: { value: Token.DoKeyword }, void: { value: Token.VoidKeyword }, finally: { value: Token.FinallyKeyword }, async: { value: Token.AsyncKeyword }, await: { value: Token.AwaitKeyword }, class: { value: Token.ClassKeyword }, const: { value: Token.ConstKeyword }, constructor: { value: Token.ConstructorKeyword }, debugger: { value: Token.DebuggerKeyword }, export: { value: Token.ExportKeyword }, extends: { value: Token.ExtendsKeyword }, false: { value: Token.FalseKeyword }, from: { value: Token.FromKeyword }, get: { value: Token.GetKeyword }, implements: { value: Token.ImplementsKeyword }, import: { value: Token.ImportKeyword }, interface: { value: Token.InterfaceKeyword }, let: { value: Token.LetKeyword }, null: { value: Token.NullKeyword }, of: { value: Token.OfKeyword }, package: { value: Token.PackageKeyword }, private: { value: Token.PrivateKeyword }, protected: { value: Token.ProtectedKeyword }, public: { value: Token.PublicKeyword }, set: { value: Token.SetKeyword }, static: { value: Token.StaticKeyword }, super: { value: Token.SuperKeyword }, true: { value: Token.TrueKeyword }, with: { value: Token.WithKeyword }, yield: { value: Token.YieldKeyword }, enum: { value: Token.EnumKeyword }, as: { value: Token.AsKeyword }, declare: { value: Token.DeclareKeyword }, type: { value: Token.TypeKeyword }, abstract: { value: Token.AbstractKeyword }, namespace: { value: Token.NamespaceKeyword }, module: { value: Token.ModuleKeyword }, global: { value: Token.GlobalKeyword }, keyof: { value: Token.KeyOfKeyword }, unique: { value: Token.UniqueKeyword }, is: { value: Token.IsKeyword }, readonly: { value: Token.ReadOnlyKeyword }, infer: { value: Token.InferKeyword }, require: { value: Token.RequireKeyword }, asserts: { value: Token.AssertsKeyword } });