@d4c/numjs
Version:
Like NumPy, in TypeScript and JavaScript
1,001 lines (997 loc) • 444 kB
JavaScript
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var $a1c71f2c05033a53$exports = {};
"use strict";
var $66348460240f6b71$exports = {};
"use strict";
var $189fa71fecbaf821$exports = {};
(function(root, factory) {
// Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
// Rhino, and plain browser loading.
/* istanbul ignore next */ if (typeof define === 'function' && define.amd) define([
'exports'
], factory);
else if (typeof $189fa71fecbaf821$exports !== 'undefined') factory($189fa71fecbaf821$exports);
else factory(root.esprima = {
});
})($189fa71fecbaf821$exports, function(exports) {
'use strict';
var Token, TokenName, FnExprTokens, Syntax, PropertyKind, Messages, Regex, SyntaxTreeDelegate, source, strict, index1, lineNumber, lineStart, length, delegate, lookahead, state, extra;
Token = {
BooleanLiteral: 1,
EOF: 2,
Identifier: 3,
Keyword: 4,
NullLiteral: 5,
NumericLiteral: 6,
Punctuator: 7,
StringLiteral: 8,
RegularExpression: 9
};
TokenName = {
};
TokenName[Token.BooleanLiteral] = 'Boolean';
TokenName[Token.EOF] = '<end>';
TokenName[Token.Identifier] = 'Identifier';
TokenName[Token.Keyword] = 'Keyword';
TokenName[Token.NullLiteral] = 'Null';
TokenName[Token.NumericLiteral] = 'Numeric';
TokenName[Token.Punctuator] = 'Punctuator';
TokenName[Token.StringLiteral] = 'String';
TokenName[Token.RegularExpression] = 'RegularExpression';
// A function following one of those tokens is an expression.
FnExprTokens = [
'(',
'{',
'[',
'in',
'typeof',
'instanceof',
'new',
'return',
'case',
'delete',
'throw',
'void',
// assignment operators
'=',
'+=',
'-=',
'*=',
'/=',
'%=',
'<<=',
'>>=',
'>>>=',
'&=',
'|=',
'^=',
',',
// binary/unary operators
'+',
'-',
'*',
'/',
'%',
'++',
'--',
'<<',
'>>',
'>>>',
'&',
'|',
'^',
'!',
'~',
'&&',
'||',
'?',
':',
'===',
'==',
'>=',
'<=',
'<',
'>',
'!=',
'!=='
];
Syntax = {
AssignmentExpression: 'AssignmentExpression',
ArrayExpression: 'ArrayExpression',
BlockStatement: 'BlockStatement',
BinaryExpression: 'BinaryExpression',
BreakStatement: 'BreakStatement',
CallExpression: 'CallExpression',
CatchClause: 'CatchClause',
ConditionalExpression: 'ConditionalExpression',
ContinueStatement: 'ContinueStatement',
DoWhileStatement: 'DoWhileStatement',
DebuggerStatement: 'DebuggerStatement',
EmptyStatement: 'EmptyStatement',
ExpressionStatement: 'ExpressionStatement',
ForStatement: 'ForStatement',
ForInStatement: 'ForInStatement',
FunctionDeclaration: 'FunctionDeclaration',
FunctionExpression: 'FunctionExpression',
Identifier: 'Identifier',
IfStatement: 'IfStatement',
Literal: 'Literal',
LabeledStatement: 'LabeledStatement',
LogicalExpression: 'LogicalExpression',
MemberExpression: 'MemberExpression',
NewExpression: 'NewExpression',
ObjectExpression: 'ObjectExpression',
Program: 'Program',
Property: 'Property',
ReturnStatement: 'ReturnStatement',
SequenceExpression: 'SequenceExpression',
SwitchStatement: 'SwitchStatement',
SwitchCase: 'SwitchCase',
ThisExpression: 'ThisExpression',
ThrowStatement: 'ThrowStatement',
TryStatement: 'TryStatement',
UnaryExpression: 'UnaryExpression',
UpdateExpression: 'UpdateExpression',
VariableDeclaration: 'VariableDeclaration',
VariableDeclarator: 'VariableDeclarator',
WhileStatement: 'WhileStatement',
WithStatement: 'WithStatement'
};
PropertyKind = {
Data: 1,
Get: 2,
Set: 4
};
// Error messages should be identical to V8.
Messages = {
UnexpectedToken: 'Unexpected token %0',
UnexpectedNumber: 'Unexpected number',
UnexpectedString: 'Unexpected string',
UnexpectedIdentifier: 'Unexpected identifier',
UnexpectedReserved: 'Unexpected reserved word',
UnexpectedEOS: 'Unexpected end of input',
NewlineAfterThrow: 'Illegal newline after throw',
InvalidRegExp: 'Invalid regular expression',
UnterminatedRegExp: 'Invalid regular expression: missing /',
InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
InvalidLHSInForIn: 'Invalid left-hand side in for-in',
MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
NoCatchOrFinally: 'Missing catch or finally after try',
UnknownLabel: 'Undefined label \'%0\'',
Redeclaration: '%0 \'%1\' has already been declared',
IllegalContinue: 'Illegal continue statement',
IllegalBreak: 'Illegal break statement',
IllegalReturn: 'Illegal return statement',
StrictModeWith: 'Strict mode code may not include a with statement',
StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
StrictVarName: 'Variable name may not be eval or arguments in strict mode',
StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
StrictDelete: 'Delete of an unqualified identifier in strict mode.',
StrictDuplicateProperty: 'Duplicate data property in object literal not allowed in strict mode',
AccessorDataProperty: 'Object literal may not have data and accessor property with the same name',
AccessorGetSet: 'Object literal may not have multiple get/set accessors with the same name',
StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
StrictReservedWord: 'Use of future reserved word in strict mode'
};
// See also tools/generate-unicode-regex.py.
Regex = {
NonAsciiIdentifierStart: new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]'),
NonAsciiIdentifierPart: new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u08A0\u08A2-\u08AC\u08E4-\u08FE\u0900-\u0963\u0966-\u096F\u0971-\u0977\u0979-\u097F\u0981-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C01-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58\u0C59\u0C60-\u0C63\u0C66-\u0C6F\u0C82\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D02\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D57\u0D60-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191C\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1CD0-\u1CD2\u1CD4-\u1CF6\u1D00-\u1DE6\u1DFC-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200C\u200D\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA697\uA69F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA827\uA840-\uA873\uA880-\uA8C4\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A\uAA7B\uAA80-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE26\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]')
};
// Ensure the condition is true, otherwise throw an error.
// This is only to have a better contract semantic, i.e. another safety net
// to catch a logic error. The condition shall be fulfilled in normal case.
// Do NOT use this to enforce a certain condition on any user input.
function assert(condition, message) {
/* istanbul ignore if */ if (!condition) throw new Error('ASSERT: ' + message);
}
function isDecimalDigit(ch) {
return ch >= 48 && ch <= 57; // 0..9
}
function isHexDigit(ch) {
return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
}
function isOctalDigit(ch) {
return '01234567'.indexOf(ch) >= 0;
}
// 7.2 White Space
function isWhiteSpace(ch) {
return ch === 32 || ch === 9 || ch === 11 || ch === 12 || ch === 160 || ch >= 5760 && [
5760,
6158,
8192,
8193,
8194,
8195,
8196,
8197,
8198,
8199,
8200,
8201,
8202,
8239,
8287,
12288,
65279
].indexOf(ch) >= 0;
}
// 7.3 Line Terminators
function isLineTerminator(ch) {
return ch === 10 || ch === 13 || ch === 8232 || ch === 8233;
}
// 7.6 Identifier Names and Identifiers
function isIdentifierStart(ch) {
return ch === 36 || ch === 95 || ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 || ch === 92 || ch >= 128 && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch));
}
function isIdentifierPart(ch) {
return ch === 36 || ch === 95 || ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 || ch >= 48 && ch <= 57 || ch === 92 || ch >= 128 && Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch));
}
// 7.6.1.2 Future Reserved Words
function isFutureReservedWord(id) {
switch(id){
case 'class':
case 'enum':
case 'export':
case 'extends':
case 'import':
case 'super':
return true;
default:
return false;
}
}
function isStrictModeReservedWord(id) {
switch(id){
case 'implements':
case 'interface':
case 'package':
case 'private':
case 'protected':
case 'public':
case 'static':
case 'yield':
case 'let':
return true;
default:
return false;
}
}
function isRestrictedWord(id) {
return id === 'eval' || id === 'arguments';
}
// 7.6.1.1 Keywords
function isKeyword(id) {
if (strict && isStrictModeReservedWord(id)) return true;
// 'const' is specialized as Keyword in V8.
// 'yield' and 'let' are for compatiblity with SpiderMonkey and ES.next.
// Some others are from future reserved words.
switch(id.length){
case 2:
return id === 'if' || id === 'in' || id === 'do';
case 3:
return id === 'var' || id === 'for' || id === 'new' || id === 'try' || id === 'let';
case 4:
return id === 'this' || id === 'else' || id === 'case' || id === 'void' || id === 'with' || id === 'enum';
case 5:
return id === 'while' || id === 'break' || id === 'catch' || id === 'throw' || id === 'const' || id === 'yield' || id === 'class' || id === 'super';
case 6:
return id === 'return' || id === 'typeof' || id === 'delete' || id === 'switch' || id === 'export' || id === 'import';
case 7:
return id === 'default' || id === 'finally' || id === 'extends';
case 8:
return id === 'function' || id === 'continue' || id === 'debugger';
case 10:
return id === 'instanceof';
default:
return false;
}
}
// 7.4 Comments
function addComment(type, value, start, end, loc) {
var comment, attacher;
assert(typeof start === 'number', 'Comment must have valid position');
// Because the way the actual token is scanned, often the comments
// (if any) are skipped twice during the lexical analysis.
// Thus, we need to skip adding a comment if the comment array already
// handled it.
if (state.lastCommentStart >= start) return;
state.lastCommentStart = start;
comment = {
type: type,
value: value
};
if (extra.range) comment.range = [
start,
end
];
if (extra.loc) comment.loc = loc;
extra.comments.push(comment);
if (extra.attachComment) {
extra.leadingComments.push(comment);
extra.trailingComments.push(comment);
}
}
function skipSingleLineComment(offset) {
var start, loc, ch, comment;
start = index1 - offset;
loc = {
start: {
line: lineNumber,
column: index1 - lineStart - offset
}
};
while(index1 < length){
ch = source.charCodeAt(index1);
++index1;
if (isLineTerminator(ch)) {
if (extra.comments) {
comment = source.slice(start + offset, index1 - 1);
loc.end = {
line: lineNumber,
column: index1 - lineStart - 1
};
addComment('Line', comment, start, index1 - 1, loc);
}
if (ch === 13 && source.charCodeAt(index1) === 10) ++index1;
++lineNumber;
lineStart = index1;
return;
}
}
if (extra.comments) {
comment = source.slice(start + offset, index1);
loc.end = {
line: lineNumber,
column: index1 - lineStart
};
addComment('Line', comment, start, index1, loc);
}
}
function skipMultiLineComment() {
var start, loc, ch, comment;
if (extra.comments) {
start = index1 - 2;
loc = {
start: {
line: lineNumber,
column: index1 - lineStart - 2
}
};
}
while(index1 < length){
ch = source.charCodeAt(index1);
if (isLineTerminator(ch)) {
if (ch === 13 && source.charCodeAt(index1 + 1) === 10) ++index1;
++lineNumber;
++index1;
lineStart = index1;
if (index1 >= length) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
} else if (ch === 42) {
// Block comment ends with '*/'.
if (source.charCodeAt(index1 + 1) === 47) {
++index1;
++index1;
if (extra.comments) {
comment = source.slice(start + 2, index1 - 2);
loc.end = {
line: lineNumber,
column: index1 - lineStart
};
addComment('Block', comment, start, index1, loc);
}
return;
}
++index1;
} else ++index1;
}
throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
}
function skipComment() {
var ch, start;
start = index1 === 0;
while(index1 < length){
ch = source.charCodeAt(index1);
if (isWhiteSpace(ch)) ++index1;
else if (isLineTerminator(ch)) {
++index1;
if (ch === 13 && source.charCodeAt(index1) === 10) ++index1;
++lineNumber;
lineStart = index1;
start = true;
} else if (ch === 47) {
ch = source.charCodeAt(index1 + 1);
if (ch === 47) {
++index1;
++index1;
skipSingleLineComment(2);
start = true;
} else if (ch === 42) {
++index1;
++index1;
skipMultiLineComment();
} else break;
} else if (start && ch === 45) {
// U+003E is '>'
if (source.charCodeAt(index1 + 1) === 45 && source.charCodeAt(index1 + 2) === 62) {
// '-->' is a single-line comment
index1 += 3;
skipSingleLineComment(3);
} else break;
} else if (ch === 60) {
if (source.slice(index1 + 1, index1 + 4) === '!--') {
++index1; // `<`
++index1; // `!`
++index1; // `-`
++index1; // `-`
skipSingleLineComment(4);
} else break;
} else break;
}
}
function scanHexEscape(prefix) {
var i, len, ch, code = 0;
len = prefix === 'u' ? 4 : 2;
for(i = 0; i < len; ++i){
if (index1 < length && isHexDigit(source[index1])) {
ch = source[index1++];
code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
} else return '';
}
return String.fromCharCode(code);
}
function getEscapedIdentifier() {
var ch, id;
ch = source.charCodeAt(index1++);
id = String.fromCharCode(ch);
// '\u' (U+005C, U+0075) denotes an escaped character.
if (ch === 92) {
if (source.charCodeAt(index1) !== 117) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
++index1;
ch = scanHexEscape('u');
if (!ch || ch === '\\' || !isIdentifierStart(ch.charCodeAt(0))) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
id = ch;
}
while(index1 < length){
ch = source.charCodeAt(index1);
if (!isIdentifierPart(ch)) break;
++index1;
id += String.fromCharCode(ch);
// '\u' (U+005C, U+0075) denotes an escaped character.
if (ch === 92) {
id = id.substr(0, id.length - 1);
if (source.charCodeAt(index1) !== 117) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
++index1;
ch = scanHexEscape('u');
if (!ch || ch === '\\' || !isIdentifierPart(ch.charCodeAt(0))) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
id += ch;
}
}
return id;
}
function getIdentifier() {
var start, ch;
start = index1++;
while(index1 < length){
ch = source.charCodeAt(index1);
if (ch === 92) {
// Blackslash (U+005C) marks Unicode escape sequence.
index1 = start;
return getEscapedIdentifier();
}
if (isIdentifierPart(ch)) ++index1;
else break;
}
return source.slice(start, index1);
}
function scanIdentifier() {
var start, id, type;
start = index1;
// Backslash (U+005C) starts an escaped character.
id = source.charCodeAt(index1) === 92 ? getEscapedIdentifier() : getIdentifier();
// There is no keyword or literal with only one character.
// Thus, it must be an identifier.
if (id.length === 1) type = Token.Identifier;
else if (isKeyword(id)) type = Token.Keyword;
else if (id === 'null') type = Token.NullLiteral;
else if (id === 'true' || id === 'false') type = Token.BooleanLiteral;
else type = Token.Identifier;
return {
type: type,
value: id,
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
// 7.7 Punctuators
function scanPunctuator() {
var start = index1, code = source.charCodeAt(index1), code2, ch1 = source[index1], ch2, ch3, ch4;
switch(code){
// Check for most common single-character punctuators.
case 46:
case 40:
case 41:
case 59:
case 44:
case 123:
case 125:
case 91:
case 93:
case 58:
case 63:
case 126:
++index1;
if (extra.tokenize) {
if (code === 40) extra.openParenToken = extra.tokens.length;
else if (code === 123) extra.openCurlyToken = extra.tokens.length;
}
return {
type: Token.Punctuator,
value: String.fromCharCode(code),
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
default:
code2 = source.charCodeAt(index1 + 1);
// '=' (U+003D) marks an assignment or comparison operator.
if (code2 === 61) switch(code){
case 43:
case 45:
case 47:
case 60:
case 62:
case 94:
case 124:
case 37:
case 38:
case 42:
index1 += 2;
return {
type: Token.Punctuator,
value: String.fromCharCode(code) + String.fromCharCode(code2),
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
case 33:
case 61:
index1 += 2;
// !== and ===
if (source.charCodeAt(index1) === 61) ++index1;
return {
type: Token.Punctuator,
value: source.slice(start, index1),
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
}
// 4-character punctuator: >>>=
ch4 = source.substr(index1, 4);
if (ch4 === '>>>=') {
index1 += 4;
return {
type: Token.Punctuator,
value: ch4,
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
// 3-character punctuators: === !== >>> <<= >>=
ch3 = ch4.substr(0, 3);
if (ch3 === '>>>' || ch3 === '<<=' || ch3 === '>>=') {
index1 += 3;
return {
type: Token.Punctuator,
value: ch3,
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
// Other 2-character punctuators: ++ -- << >> && ||
ch2 = ch3.substr(0, 2);
if (ch1 === ch2[1] && '+-<>&|'.indexOf(ch1) >= 0 || ch2 === '=>') {
index1 += 2;
return {
type: Token.Punctuator,
value: ch2,
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
// 1-character punctuators: < > = ! + - * % & | ^ /
if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
++index1;
return {
type: Token.Punctuator,
value: ch1,
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
}
// 7.8.3 Numeric Literals
function scanHexLiteral(start) {
var number = '';
while(index1 < length){
if (!isHexDigit(source[index1])) break;
number += source[index1++];
}
if (number.length === 0) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
if (isIdentifierStart(source.charCodeAt(index1))) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
return {
type: Token.NumericLiteral,
value: parseInt('0x' + number, 16),
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
function scanOctalLiteral(start) {
var number = '0' + source[index1++];
while(index1 < length){
if (!isOctalDigit(source[index1])) break;
number += source[index1++];
}
if (isIdentifierStart(source.charCodeAt(index1)) || isDecimalDigit(source.charCodeAt(index1))) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
return {
type: Token.NumericLiteral,
value: parseInt(number, 8),
octal: true,
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
function isImplicitOctalLiteral() {
var i, ch;
// Implicit octal, unless there is a non-octal digit.
// (Annex B.1.1 on Numeric Literals)
for(i = index1 + 1; i < length; ++i){
ch = source[i];
if (ch === '8' || ch === '9') return false;
if (!isOctalDigit(ch)) return true;
}
return true;
}
function scanNumericLiteral() {
var number, start, ch;
ch = source[index1];
assert(isDecimalDigit(ch.charCodeAt(0)) || ch === '.', 'Numeric literal must start with a decimal digit or a decimal point');
start = index1;
number = '';
if (ch !== '.') {
number = source[index1++];
ch = source[index1];
// Hex number starts with '0x'.
// Octal number starts with '0'.
if (number === '0') {
if (ch === 'x' || ch === 'X') {
++index1;
return scanHexLiteral(start);
}
if (isOctalDigit(ch)) {
if (isImplicitOctalLiteral()) return scanOctalLiteral(start);
}
}
while(isDecimalDigit(source.charCodeAt(index1)))number += source[index1++];
ch = source[index1];
}
if (ch === '.') {
number += source[index1++];
while(isDecimalDigit(source.charCodeAt(index1)))number += source[index1++];
ch = source[index1];
}
if (ch === 'e' || ch === 'E') {
number += source[index1++];
ch = source[index1];
if (ch === '+' || ch === '-') number += source[index1++];
if (isDecimalDigit(source.charCodeAt(index1))) while(isDecimalDigit(source.charCodeAt(index1)))number += source[index1++];
else throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
}
if (isIdentifierStart(source.charCodeAt(index1))) throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
return {
type: Token.NumericLiteral,
value: parseFloat(number),
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
// 7.8.4 String Literals
function scanStringLiteral() {
var str = '', quote, start, ch, code, unescaped, restore, octal = false, startLineNumber, startLineStart;
startLineNumber = lineNumber;
startLineStart = lineStart;
quote = source[index1];
assert(quote === '\'' || quote === '"', 'String literal must starts with a quote');
start = index1;
++index1;
while(index1 < length){
ch = source[index1++];
if (ch === quote) {
quote = '';
break;
} else if (ch === '\\') {
ch = source[index1++];
if (!ch || !isLineTerminator(ch.charCodeAt(0))) switch(ch){
case 'u':
case 'x':
restore = index1;
unescaped = scanHexEscape(ch);
if (unescaped) str += unescaped;
else {
index1 = restore;
str += ch;
}
break;
case 'n':
str += '\n';
break;
case 'r':
str += '\r';
break;
case 't':
str += '\t';
break;
case 'b':
str += '\b';
break;
case 'f':
str += '\f';
break;
case 'v':
str += '\x0B';
break;
default:
if (isOctalDigit(ch)) {
code = '01234567'.indexOf(ch);
// \0 is not octal escape sequence
if (code !== 0) octal = true;
if (index1 < length && isOctalDigit(source[index1])) {
octal = true;
code = code * 8 + '01234567'.indexOf(source[index1++]);
// 3 digits are only allowed when string starts
// with 0, 1, 2, 3
if ('0123'.indexOf(ch) >= 0 && index1 < length && isOctalDigit(source[index1])) code = code * 8 + '01234567'.indexOf(source[index1++]);
}
str += String.fromCharCode(code);
} else str += ch;
break;
}
else {
++lineNumber;
if (ch === '\r' && source[index1] === '\n') ++index1;
lineStart = index1;
}
} else if (isLineTerminator(ch.charCodeAt(0))) break;
else str += ch;
}
if (quote !== '') throwError({
}, Messages.UnexpectedToken, 'ILLEGAL');
return {
type: Token.StringLiteral,
value: str,
octal: octal,
startLineNumber: startLineNumber,
startLineStart: startLineStart,
lineNumber: lineNumber,
lineStart: lineStart,
start: start,
end: index1
};
}
function testRegExp(pattern, flags) {
var value;
try {
value = new RegExp(pattern, flags);
} catch (e) {
throwError({
}, Messages.InvalidRegExp);
}
return value;
}
function scanRegExpBody() {
var ch, str, classMarker, terminated, body;
ch = source[index1];
assert(ch === '/', 'Regular expression literal must start with a slash');
str = source[index1++];
classMarker = false;
terminated = false;
while(index1 < length){
ch = source[index1++];
str += ch;
if (ch === '\\') {
ch = source[index1++];
// ECMA-262 7.8.5
if (isLineTerminator(ch.charCodeAt(0))) throwError({
}, Messages.UnterminatedRegExp);
str += ch;
} else if (isLineTerminator(ch.charCodeAt(0))) throwError({
}, Messages.UnterminatedRegExp);
else if (classMarker) {
if (ch === ']') classMarker = false;
} else {
if (ch === '/') {
terminated = true;
break;
} else if (ch === '[') classMarker = true;
}
}
if (!terminated) throwError({
}, Messages.UnterminatedRegExp);
// Exclude leading and trailing slash.
body = str.substr(1, str.length - 2);
return {
value: body,
literal: str
};
}
function scanRegExpFlags() {
var ch, str, flags, restore;
str = '';
flags = '';
while(index1 < length){
ch = source[index1];
if (!isIdentifierPart(ch.charCodeAt(0))) break;
++index1;
if (ch === '\\' && index1 < length) {
ch = source[index1];
if (ch === 'u') {
++index1;
restore = index1;
ch = scanHexEscape('u');
if (ch) {
flags += ch;
for(str += '\\u'; restore < index1; ++restore)str += source[restore];
} else {
index1 = restore;
flags += 'u';
str += '\\u';
}
throwErrorTolerant({
}, Messages.UnexpectedToken, 'ILLEGAL');
} else {
str