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formations/javascript/base/exercices/linting/node_modules/jshint/dist/jshint-rhino.js

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Ajout exercices supplémentaires formation JS
2015-04-01 22:05:05 +02:00
#!/usr/bin/env rhino
var window = {};
/*! 2.6.3 */
var JSHINT;
if (typeof window === 'undefined') window = {};
(function () {
var require;
require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var identifierStartTable = [];
for (var i = 0; i < 128; i++) {
identifierStartTable[i] =
i === 36 || // $
i >= 65 && i <= 90 || // A-Z
i === 95 || // _
i >= 97 && i <= 122; // a-z
}
var identifierPartTable = [];
for (var i = 0; i < 128; i++) {
identifierPartTable[i] =
identifierStartTable[i] || // $, _, A-Z, a-z
i >= 48 && i <= 57; // 0-9
}
module.exports = {
asciiIdentifierStartTable: identifierStartTable,
asciiIdentifierPartTable: identifierPartTable
};
},{}],2:[function(require,module,exports){
var str = '768,769,770,771,772,773,774,775,776,777,778,779,780,781,782,783,784,785,786,787,788,789,790,791,792,793,794,795,796,797,798,799,800,801,802,803,804,805,806,807,808,809,810,811,812,813,814,815,816,817,818,819,820,821,822,823,824,825,826,827,828,829,830,831,832,833,834,835,836,837,838,839,840,841,842,843,844,845,846,847,848,849,850,851,852,853,854,855,856,857,858,859,860,861,862,863,864,865,866,867,868,869,870,871,872,873,874,875,876,877,878,879,1155,1156,1157,1158,1159,1425,1426,1427,1428,1429,1430,1431,1432,1433,1434,1435,1436,1437,1438,1439,1440,1441,1442,1443,1444,1445,1446,1447,1448,1449,1450,1451,1452,1453,1454,1455,1456,1457,1458,1459,1460,1461,1462,1463,1464,1465,1466,1467,1468,1469,1471,1473,1474,1476,1477,1479,1552,1553,1554,1555,1556,1557,1558,1559,1560,1561,1562,1611,1612,1613,1614,1615,1616,1617,1618,1619,1620,1621,1622,1623,1624,1625,1626,1627,1628,1629,1630,1631,1632,1633,1634,1635,1636,1637,1638,1639,1640,1641,1648,1750,1751,1752,1753,1754,1755,1756,1759,1760,1761,1762,1763,1764,1767,1768,1770,1771,1772,1773,1776,1777,1778,1779,1780,1781,1782,1783,1784,1785,1809,1840,1841,1842,1843,1844,1845,1846,1847,1848,1849,1850,1851,1852,1853,1854,1855,1856,1857,1858,1859,1860,1861,1862,1863,1864,1865,1866,1958,1959,1960,1961,1962,1963,1964,1965,1966,1967,1968,1984,1985,1986,1987,1988,1989,1990,1991,1992,1993,2027,2028,2029,2030,2031,2032,2033,2034,2035,2070,2071,2072,2073,2075,2076,2077,2078,2079,2080,2081,2082,2083,2085,2086,2087,2089,2090,2091,2092,2093,2137,2138,2139,2276,2277,2278,2279,2280,2281,2282,2283,2284,2285,2286,2287,2288,2289,2290,2291,2292,2293,2294,2295,2296,2297,2298,2299,2300,2301,2302,2304,2305,2306,2307,2362,2363,2364,2366,2367,2368,2369,2370,2371,2372,2373,2374,2375,2376,2377,2378,2379,2380,2381,2382,2383,2385,2386,2387,2388,2389,2390,2391,2402,2403,2406,2407,2408,2409,2410,2411,2412,2413,2414,2415,2433,2434,2435,2492,2494,2495,2496,2497,2498,2499,2500,2503,2504,2507,2508,2509,2519,2530,2531,2534,2535,2536,2537,2538,2539,2540,2541,2542,2543,2561,2562,2563,2620,2622,2623,2624,2625,2626,2631,2632,2635,2636,2637,2641,2662,2663,2664,2665,2666,2667,2668,2669,2670,2671,2672,2673,2677,2689,2690,2691,2748,2750,2751,2752,2753,2754,2755,2756,2757,2759,2760,2761,2763,2764,2765,2786,2787,2790,2791,2792,2793,2794,2795,2796,2797,2798,2799,2817,2818,2819,2876,2878,2879,2880,2881,2882,2883,2884,2887,2888,2891,2892,2893,2902,2903,2914,2915,2918,2919,2920,2921,2922,2923,2924,2925,2926,2927,2946,3006,3007,3008,3009,3010,3014,3015,3016,3018,3019,3020,3021,3031,3046,3047,3048,3049,3050,3051,3052,3053,3054,3055,3073,3074,3075,3134,3135,3136,3137,3138,3139,3140,3142,3143,3144,3146,3147,3148,3149,3157,3158,3170,3171,3174,3175,3176,3177,3178,3179,3180,3181,3182,3183,3202,3203,3260,3262,3263,3264,3265,3266,3267,3268,3270,3271,3272,3274,3275,3276,3277,3285,3286,3298,3299,3302,3303,3304,3305,3306,3307,3308,3309,3310,3311,3330,3331,3390,3391,3392,3393,3394,3395,3396,3398,3399,3400,3402,3403,3404,3405,3415,3426,3427,3430,3431,3432,3433,3434,3435,3436,3437,3438,3439,3458,3459,3530,3535,3536,3537,3538,3539,3540,3542,3544,3545,3546,3547,3548,3549,3550,3551,3570,3571,3633,3636,3637,3638,3639,3640,3641,3642,3655,3656,3657,3658,3659,3660,3661,3662,3664,3665,3666,3667,3668,3669,3670,3671,3672,3673,3761,3764,3765,3766,3767,3768,3769,3771,3772,3784,3785,3786,3787,3788,3789,3792,3793,3794,3795,3796,3797,3798,3799,3800,3801,3864,3865,3872,3873,3874,3875,3876,3877,3878,3879,3880,3881,3893,3895,3897,3902,3903,3953,3954,3955,3956,3957,3958,3959,3960,3961,3962,3963,3964,3965,3966,3967,3968,3969,3970,3971,3972,3974,3975,3981,3982,3983,3984,3985,3986,3987,3988,3989,3990,3991,3993,3994,3995,3996,3997,3998,3999,4000,4001,4002,4003,4004,4005,4006,4007,4008,4009,4010,4011,4012,4013,4014,4015,4016,4017,4018,4019,4020,4021,4022,4023,4024,4025,4026,4027,4028,4038,4139,4140,4141,4142,4143,4144,4145,4146,4147,4148,4149,4150,4151,4152,4153,4154,4155,4156,4157,4158,4160,4161,4162,4163,4164,4165,4166,4167,4168,4169,4182,4183,4184,4185,4190,4191,4192,4194,4195,4196,4199,4200,4201,4202,4203,4204,4205,4209,4210,4211,4212,4226,4227,4228,4229,4230,4
var arr = str.split(',').map(function(code) {
return parseInt(code, 10);
});
module.exports = arr;
},{}],3:[function(require,module,exports){
var str = '170,181,186,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346,347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394,395,396,397,398,399,400,401,402,403,404,405,406,407,408,409,410,411,412,413,414,415,416,417,418,419,420,421,422,423,424,425,426,427,428,429,430,431,432,433,434,435,436,437,438,439,440,441,442,443,444,445,446,447,448,449,450,451,452,453,454,455,456,457,458,459,460,461,462,463,464,465,466,467,468,469,470,471,472,473,474,475,476,477,478,479,480,481,482,483,484,485,486,487,488,489,490,491,492,493,494,495,496,497,498,499,500,501,502,503,504,505,506,507,508,509,510,511,512,513,514,515,516,517,518,519,520,521,522,523,524,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566,567,568,569,570,571,572,573,574,575,576,577,578,579,580,581,582,583,584,585,586,587,588,589,590,591,592,593,594,595,596,597,598,599,600,601,602,603,604,605,606,607,608,609,610,611,612,613,614,615,616,617,618,619,620,621,622,623,624,625,626,627,628,629,630,631,632,633,634,635,636,637,638,639,640,641,642,643,644,645,646,647,648,649,650,651,652,653,654,655,656,657,658,659,660,661,662,663,664,665,666,667,668,669,670,671,672,673,674,675,676,677,678,679,680,681,682,683,684,685,686,687,688,689,690,691,692,693,694,695,696,697,698,699,700,701,702,703,704,705,710,711,712,713,714,715,716,717,718,719,720,721,736,737,738,739,740,748,750,880,881,882,883,884,886,887,890,891,892,893,902,904,905,906,908,910,911,912,913,914,915,916,917,918,919,920,921,922,923,924,925,926,927,928,929,931,932,933,934,935,936,937,938,939,940,941,942,943,944,945,946,947,948,949,950,951,952,953,954,955,956,957,958,959,960,961,962,963,964,965,966,967,968,969,970,971,972,973,974,975,976,977,978,979,980,981,982,983,984,985,986,987,988,989,990,991,992,993,994,995,996,997,998,999,1000,1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,1011,1012,1013,1015,1016,1017,1018,1019,1020,1021,1022,1023,1024,1025,1026,1027,1028,1029,1030,1031,1032,1033,1034,1035,1036,1037,1038,1039,1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103,1104,1105,1106,1107,1108,1109,1110,1111,1112,1113,1114,1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126,1127,1128,1129,1130,1131,1132,1133,1134,1135,1136,1137,1138,1139,1140,1141,1142,1143,1144,1145,1146,1147,1148,1149,1150,1151,1152,1153,1162,1163,1164,1165,1166,1167,1168,1169,1170,1171,1172,1173,1174,1175,1176,1177,1178,1179,1180,1181,1182,1183,1184,1185,1186,1187,1188,1189,1190,1191,1192,1193,1194,1195,1196,1197,1198,1199,1200,1201,1202,1203,1204,1205,1206,1207,1208,1209,1210,1211,1212,1213,1214,1215,1216,1217,1218,1219,1220,1221,1222,1223,1224,1225,1226,1227,1228,1229,1230,1231,1232,1233,1234,1235,1236,1237,1238,1239,1240,1241,1242,1243,1244,1245,1246,1247,1248,1249,1250,1251,1252,1253,1254,1255,1256,1257,1258,1259,1260,1261,1262,1263,1264,1265,1266,1267,1268,1269,1270,1271,1272,1273,1274,1275,1276,1277,1278,1279,1280,1281,1282,1283,1284,1285,1286,1287,1288,1289,1290,1291,1292,1293,1294,1295,1296,1297,1298,1299,1300,1301,1302,1303,1304,1305,1306,1307,1308,1309,1310,1311,1312,1313,131
var arr = str.split(',').map(function(code) {
return parseInt(code, 10);
});
module.exports = arr;
},{}],4:[function(require,module,exports){
// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
//
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
//
// Originally from narwhal.js (http://narwhaljs.org)
// Copyright (c) 2009 Thomas Robinson <280north.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// when used in node, this will actually load the util module we depend on
// versus loading the builtin util module as happens otherwise
// this is a bug in node module loading as far as I am concerned
var util = require('util/');
var pSlice = Array.prototype.slice;
var hasOwn = Object.prototype.hasOwnProperty;
// 1. The assert module provides functions that throw
// AssertionError's when particular conditions are not met. The
// assert module must conform to the following interface.
var assert = module.exports = ok;
// 2. The AssertionError is defined in assert.
// new assert.AssertionError({ message: message,
// actual: actual,
// expected: expected })
assert.AssertionError = function AssertionError(options) {
this.name = 'AssertionError';
this.actual = options.actual;
this.expected = options.expected;
this.operator = options.operator;
if (options.message) {
this.message = options.message;
this.generatedMessage = false;
} else {
this.message = getMessage(this);
this.generatedMessage = true;
}
var stackStartFunction = options.stackStartFunction || fail;
if (Error.captureStackTrace) {
Error.captureStackTrace(this, stackStartFunction);
}
else {
// non v8 browsers so we can have a stacktrace
var err = new Error();
if (err.stack) {
var out = err.stack;
// try to strip useless frames
var fn_name = stackStartFunction.name;
var idx = out.indexOf('\n' + fn_name);
if (idx >= 0) {
// once we have located the function frame
// we need to strip out everything before it (and its line)
var next_line = out.indexOf('\n', idx + 1);
out = out.substring(next_line + 1);
}
this.stack = out;
}
}
};
// assert.AssertionError instanceof Error
util.inherits(assert.AssertionError, Error);
function replacer(key, value) {
if (util.isUndefined(value)) {
return '' + value;
}
if (util.isNumber(value) && (isNaN(value) || !isFinite(value))) {
return value.toString();
}
if (util.isFunction(value) || util.isRegExp(value)) {
return value.toString();
}
return value;
}
function truncate(s, n) {
if (util.isString(s)) {
return s.length < n ? s : s.slice(0, n);
} else {
return s;
}
}
function getMessage(self) {
return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' +
self.operator + ' ' +
truncate(JSON.stringify(self.expected, replacer), 128);
}
// At present only the three keys mentioned above are used and
// understood by the spec. Implementations or sub modules can pass
// other keys to the AssertionError's constructor - they will be
// ignored.
// 3. All of the following functions must throw an AssertionError
// when a corresponding condition is not met, with a message that
// may be undefined if not provided. All assertion methods provide
// both the actual and expected values to the assertion error for
// display purposes.
function fail(actual, expected, message, operator, stackStartFunction) {
throw new assert.AssertionError({
message: message,
actual: actual,
expected: expected,
operator: operator,
stackStartFunction: stackStartFunction
});
}
// EXTENSION! allows for well behaved errors defined elsewhere.
assert.fail = fail;
// 4. Pure assertion tests whether a value is truthy, as determined
// by !!guard.
// assert.ok(guard, message_opt);
// This statement is equivalent to assert.equal(true, !!guard,
// message_opt);. To test strictly for the value true, use
// assert.strictEqual(true, guard, message_opt);.
function ok(value, message) {
if (!value) fail(value, true, message, '==', assert.ok);
}
assert.ok = ok;
// 5. The equality assertion tests shallow, coercive equality with
// ==.
// assert.equal(actual, expected, message_opt);
assert.equal = function equal(actual, expected, message) {
if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};
// 6. The non-equality assertion tests for whether two objects are not equal
// with != assert.notEqual(actual, expected, message_opt);
assert.notEqual = function notEqual(actual, expected, message) {
if (actual == expected) {
fail(actual, expected, message, '!=', assert.notEqual);
}
};
// 7. The equivalence assertion tests a deep equality relation.
// assert.deepEqual(actual, expected, message_opt);
assert.deepEqual = function deepEqual(actual, expected, message) {
if (!_deepEqual(actual, expected)) {
fail(actual, expected, message, 'deepEqual', assert.deepEqual);
}
};
function _deepEqual(actual, expected) {
// 7.1. All identical values are equivalent, as determined by ===.
if (actual === expected) {
return true;
} else if (util.isBuffer(actual) && util.isBuffer(expected)) {
if (actual.length != expected.length) return false;
for (var i = 0; i < actual.length; i++) {
if (actual[i] !== expected[i]) return false;
}
return true;
// 7.2. If the expected value is a Date object, the actual value is
// equivalent if it is also a Date object that refers to the same time.
} else if (util.isDate(actual) && util.isDate(expected)) {
return actual.getTime() === expected.getTime();
// 7.3 If the expected value is a RegExp object, the actual value is
// equivalent if it is also a RegExp object with the same source and
// properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
} else if (util.isRegExp(actual) && util.isRegExp(expected)) {
return actual.source === expected.source &&
actual.global === expected.global &&
actual.multiline === expected.multiline &&
actual.lastIndex === expected.lastIndex &&
actual.ignoreCase === expected.ignoreCase;
// 7.4. Other pairs that do not both pass typeof value == 'object',
// equivalence is determined by ==.
} else if (!util.isObject(actual) && !util.isObject(expected)) {
return actual == expected;
// 7.5 For all other Object pairs, including Array objects, equivalence is
// determined by having the same number of owned properties (as verified
// with Object.prototype.hasOwnProperty.call), the same set of keys
// (although not necessarily the same order), equivalent values for every
// corresponding key, and an identical 'prototype' property. Note: this
// accounts for both named and indexed properties on Arrays.
} else {
return objEquiv(actual, expected);
}
}
function isArguments(object) {
return Object.prototype.toString.call(object) == '[object Arguments]';
}
function objEquiv(a, b) {
if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b))
return false;
// an identical 'prototype' property.
if (a.prototype !== b.prototype) return false;
//~~~I've managed to break Object.keys through screwy arguments passing.
// Converting to array solves the problem.
if (isArguments(a)) {
if (!isArguments(b)) {
return false;
}
a = pSlice.call(a);
b = pSlice.call(b);
return _deepEqual(a, b);
}
try {
var ka = objectKeys(a),
kb = objectKeys(b),
key, i;
} catch (e) {//happens when one is a string literal and the other isn't
return false;
}
// having the same number of owned properties (keys incorporates
// hasOwnProperty)
if (ka.length != kb.length)
return false;
//the same set of keys (although not necessarily the same order),
ka.sort();
kb.sort();
//~~~cheap key test
for (i = ka.length - 1; i >= 0; i--) {
if (ka[i] != kb[i])
return false;
}
//equivalent values for every corresponding key, and
//~~~possibly expensive deep test
for (i = ka.length - 1; i >= 0; i--) {
key = ka[i];
if (!_deepEqual(a[key], b[key])) return false;
}
return true;
}
// 8. The non-equivalence assertion tests for any deep inequality.
// assert.notDeepEqual(actual, expected, message_opt);
assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
if (_deepEqual(actual, expected)) {
fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
}
};
// 9. The strict equality assertion tests strict equality, as determined by ===.
// assert.strictEqual(actual, expected, message_opt);
assert.strictEqual = function strictEqual(actual, expected, message) {
if (actual !== expected) {
fail(actual, expected, message, '===', assert.strictEqual);
}
};
// 10. The strict non-equality assertion tests for strict inequality, as
// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
if (actual === expected) {
fail(actual, expected, message, '!==', assert.notStrictEqual);
}
};
function expectedException(actual, expected) {
if (!actual || !expected) {
return false;
}
if (Object.prototype.toString.call(expected) == '[object RegExp]') {
return expected.test(actual);
} else if (actual instanceof expected) {
return true;
} else if (expected.call({}, actual) === true) {
return true;
}
return false;
}
function _throws(shouldThrow, block, expected, message) {
var actual;
if (util.isString(expected)) {
message = expected;
expected = null;
}
try {
block();
} catch (e) {
actual = e;
}
message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
(message ? ' ' + message : '.');
if (shouldThrow && !actual) {
fail(actual, expected, 'Missing expected exception' + message);
}
if (!shouldThrow && expectedException(actual, expected)) {
fail(actual, expected, 'Got unwanted exception' + message);
}
if ((shouldThrow && actual && expected &&
!expectedException(actual, expected)) || (!shouldThrow && actual)) {
throw actual;
}
}
// 11. Expected to throw an error:
// assert.throws(block, Error_opt, message_opt);
assert.throws = function(block, /*optional*/error, /*optional*/message) {
_throws.apply(this, [true].concat(pSlice.call(arguments)));
};
// EXTENSION! This is annoying to write outside this module.
assert.doesNotThrow = function(block, /*optional*/message) {
_throws.apply(this, [false].concat(pSlice.call(arguments)));
};
assert.ifError = function(err) { if (err) {throw err;}};
var objectKeys = Object.keys || function (obj) {
var keys = [];
for (var key in obj) {
if (hasOwn.call(obj, key)) keys.push(key);
}
return keys;
};
},{"util/":9}],5:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
function EventEmitter() {
this._events = this._events || {};
this._maxListeners = this._maxListeners || undefined;
}
module.exports = EventEmitter;
// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;
EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined;
// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
EventEmitter.defaultMaxListeners = 10;
// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function(n) {
if (!isNumber(n) || n < 0 || isNaN(n))
throw TypeError('n must be a positive number');
this._maxListeners = n;
return this;
};
EventEmitter.prototype.emit = function(type) {
var er, handler, len, args, i, listeners;
if (!this._events)
this._events = {};
// If there is no 'error' event listener then throw.
if (type === 'error') {
if (!this._events.error ||
(isObject(this._events.error) && !this._events.error.length)) {
er = arguments[1];
if (er instanceof Error) {
throw er; // Unhandled 'error' event
}
throw TypeError('Uncaught, unspecified "error" event.');
}
}
handler = this._events[type];
if (isUndefined(handler))
return false;
if (isFunction(handler)) {
switch (arguments.length) {
// fast cases
case 1:
handler.call(this);
break;
case 2:
handler.call(this, arguments[1]);
break;
case 3:
handler.call(this, arguments[1], arguments[2]);
break;
// slower
default:
len = arguments.length;
args = new Array(len - 1);
for (i = 1; i < len; i++)
args[i - 1] = arguments[i];
handler.apply(this, args);
}
} else if (isObject(handler)) {
len = arguments.length;
args = new Array(len - 1);
for (i = 1; i < len; i++)
args[i - 1] = arguments[i];
listeners = handler.slice();
len = listeners.length;
for (i = 0; i < len; i++)
listeners[i].apply(this, args);
}
return true;
};
EventEmitter.prototype.addListener = function(type, listener) {
var m;
if (!isFunction(listener))
throw TypeError('listener must be a function');
if (!this._events)
this._events = {};
// To avoid recursion in the case that type === "newListener"! Before
// adding it to the listeners, first emit "newListener".
if (this._events.newListener)
this.emit('newListener', type,
isFunction(listener.listener) ?
listener.listener : listener);
if (!this._events[type])
// Optimize the case of one listener. Don't need the extra array object.
this._events[type] = listener;
else if (isObject(this._events[type]))
// If we've already got an array, just append.
this._events[type].push(listener);
else
// Adding the second element, need to change to array.
this._events[type] = [this._events[type], listener];
// Check for listener leak
if (isObject(this._events[type]) && !this._events[type].warned) {
var m;
if (!isUndefined(this._maxListeners)) {
m = this._maxListeners;
} else {
m = EventEmitter.defaultMaxListeners;
}
if (m && m > 0 && this._events[type].length > m) {
this._events[type].warned = true;
console.error('(node) warning: possible EventEmitter memory ' +
'leak detected. %d listeners added. ' +
'Use emitter.setMaxListeners() to increase limit.',
this._events[type].length);
if (typeof console.trace === 'function') {
// not supported in IE 10
console.trace();
}
}
}
return this;
};
EventEmitter.prototype.on = EventEmitter.prototype.addListener;
EventEmitter.prototype.once = function(type, listener) {
if (!isFunction(listener))
throw TypeError('listener must be a function');
var fired = false;
function g() {
this.removeListener(type, g);
if (!fired) {
fired = true;
listener.apply(this, arguments);
}
}
g.listener = listener;
this.on(type, g);
return this;
};
// emits a 'removeListener' event iff the listener was removed
EventEmitter.prototype.removeListener = function(type, listener) {
var list, position, length, i;
if (!isFunction(listener))
throw TypeError('listener must be a function');
if (!this._events || !this._events[type])
return this;
list = this._events[type];
length = list.length;
position = -1;
if (list === listener ||
(isFunction(list.listener) && list.listener === listener)) {
delete this._events[type];
if (this._events.removeListener)
this.emit('removeListener', type, listener);
} else if (isObject(list)) {
for (i = length; i-- > 0;) {
if (list[i] === listener ||
(list[i].listener && list[i].listener === listener)) {
position = i;
break;
}
}
if (position < 0)
return this;
if (list.length === 1) {
list.length = 0;
delete this._events[type];
} else {
list.splice(position, 1);
}
if (this._events.removeListener)
this.emit('removeListener', type, listener);
}
return this;
};
EventEmitter.prototype.removeAllListeners = function(type) {
var key, listeners;
if (!this._events)
return this;
// not listening for removeListener, no need to emit
if (!this._events.removeListener) {
if (arguments.length === 0)
this._events = {};
else if (this._events[type])
delete this._events[type];
return this;
}
// emit removeListener for all listeners on all events
if (arguments.length === 0) {
for (key in this._events) {
if (key === 'removeListener') continue;
this.removeAllListeners(key);
}
this.removeAllListeners('removeListener');
this._events = {};
return this;
}
listeners = this._events[type];
if (isFunction(listeners)) {
this.removeListener(type, listeners);
} else {
// LIFO order
while (listeners.length)
this.removeListener(type, listeners[listeners.length - 1]);
}
delete this._events[type];
return this;
};
EventEmitter.prototype.listeners = function(type) {
var ret;
if (!this._events || !this._events[type])
ret = [];
else if (isFunction(this._events[type]))
ret = [this._events[type]];
else
ret = this._events[type].slice();
return ret;
};
EventEmitter.listenerCount = function(emitter, type) {
var ret;
if (!emitter._events || !emitter._events[type])
ret = 0;
else if (isFunction(emitter._events[type]))
ret = 1;
else
ret = emitter._events[type].length;
return ret;
};
function isFunction(arg) {
return typeof arg === 'function';
}
function isNumber(arg) {
return typeof arg === 'number';
}
function isObject(arg) {
return typeof arg === 'object' && arg !== null;
}
function isUndefined(arg) {
return arg === void 0;
}
},{}],6:[function(require,module,exports){
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
ctor.prototype = Object.create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
});
};
} else {
// old school shim for old browsers
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
var TempCtor = function () {}
TempCtor.prototype = superCtor.prototype
ctor.prototype = new TempCtor()
ctor.prototype.constructor = ctor
}
}
},{}],7:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
process.nextTick = (function () {
var canSetImmediate = typeof window !== 'undefined'
&& window.setImmediate;
var canMutationObserver = typeof window !== 'undefined'
&& window.MutationObserver;
var canPost = typeof window !== 'undefined'
&& window.postMessage && window.addEventListener
;
if (canSetImmediate) {
return function (f) { return window.setImmediate(f) };
}
var queue = [];
if (canMutationObserver) {
var hiddenDiv = document.createElement("div");
var observer = new MutationObserver(function () {
var queueList = queue.slice();
queue.length = 0;
queueList.forEach(function (fn) {
fn();
});
});
observer.observe(hiddenDiv, { attributes: true });
return function nextTick(fn) {
if (!queue.length) {
hiddenDiv.setAttribute('yes', 'no');
}
queue.push(fn);
};
}
if (canPost) {
window.addEventListener('message', function (ev) {
var source = ev.source;
if ((source === window || source === null) && ev.data === 'process-tick') {
ev.stopPropagation();
if (queue.length > 0) {
var fn = queue.shift();
fn();
}
}
}, true);
return function nextTick(fn) {
queue.push(fn);
window.postMessage('process-tick', '*');
};
}
return function nextTick(fn) {
setTimeout(fn, 0);
};
})();
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
},{}],8:[function(require,module,exports){
module.exports = function isBuffer(arg) {
return arg && typeof arg === 'object'
&& typeof arg.copy === 'function'
&& typeof arg.fill === 'function'
&& typeof arg.readUInt8 === 'function';
}
},{}],9:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
if (!isString(f)) {
var objects = [];
for (var i = 0; i < arguments.length; i++) {
objects.push(inspect(arguments[i]));
}
return objects.join(' ');
}
var i = 1;
var args = arguments;
var len = args.length;
var str = String(f).replace(formatRegExp, function(x) {
if (x === '%%') return '%';
if (i >= len) return x;
switch (x) {
case '%s': return String(args[i++]);
case '%d': return Number(args[i++]);
case '%j':
try {
return JSON.stringify(args[i++]);
} catch (_) {
return '[Circular]';
}
default:
return x;
}
});
for (var x = args[i]; i < len; x = args[++i]) {
if (isNull(x) || !isObject(x)) {
str += ' ' + x;
} else {
str += ' ' + inspect(x);
}
}
return str;
};
// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
// Allow for deprecating things in the process of starting up.
if (isUndefined(global.process)) {
return function() {
return exports.deprecate(fn, msg).apply(this, arguments);
};
}
if (process.noDeprecation === true) {
return fn;
}
var warned = false;
function deprecated() {
if (!warned) {
if (process.throwDeprecation) {
throw new Error(msg);
} else if (process.traceDeprecation) {
console.trace(msg);
} else {
console.error(msg);
}
warned = true;
}
return fn.apply(this, arguments);
}
return deprecated;
};
var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
if (isUndefined(debugEnviron))
debugEnviron = process.env.NODE_DEBUG || '';
set = set.toUpperCase();
if (!debugs[set]) {
if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
var pid = process.pid;
debugs[set] = function() {
var msg = exports.format.apply(exports, arguments);
console.error('%s %d: %s', set, pid, msg);
};
} else {
debugs[set] = function() {};
}
}
return debugs[set];
};
/**
* Echos the value of a value. Trys to print the value out
* in the best way possible given the different types.
*
* @param {Object} obj The object to print out.
* @param {Object} opts Optional options object that alters the output.
*/
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
// default options
var ctx = {
seen: [],
stylize: stylizeNoColor
};
// legacy...
if (arguments.length >= 3) ctx.depth = arguments[2];
if (arguments.length >= 4) ctx.colors = arguments[3];
if (isBoolean(opts)) {
// legacy...
ctx.showHidden = opts;
} else if (opts) {
// got an "options" object
exports._extend(ctx, opts);
}
// set default options
if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
if (isUndefined(ctx.depth)) ctx.depth = 2;
if (isUndefined(ctx.colors)) ctx.colors = false;
if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
if (ctx.colors) ctx.stylize = stylizeWithColor;
return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
'bold' : [1, 22],
'italic' : [3, 23],
'underline' : [4, 24],
'inverse' : [7, 27],
'white' : [37, 39],
'grey' : [90, 39],
'black' : [30, 39],
'blue' : [34, 39],
'cyan' : [36, 39],
'green' : [32, 39],
'magenta' : [35, 39],
'red' : [31, 39],
'yellow' : [33, 39]
};
// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
'special': 'cyan',
'number': 'yellow',
'boolean': 'yellow',
'undefined': 'grey',
'null': 'bold',
'string': 'green',
'date': 'magenta',
// "name": intentionally not styling
'regexp': 'red'
};
function stylizeWithColor(str, styleType) {
var style = inspect.styles[styleType];
if (style) {
return '\u001b[' + inspect.colors[style][0] + 'm' + str +
'\u001b[' + inspect.colors[style][1] + 'm';
} else {
return str;
}
}
function stylizeNoColor(str, styleType) {
return str;
}
function arrayToHash(array) {
var hash = {};
array.forEach(function(val, idx) {
hash[val] = true;
});
return hash;
}
function formatValue(ctx, value, recurseTimes) {
// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it
if (ctx.customInspect &&
value &&
isFunction(value.inspect) &&
// Filter out the util module, it's inspect function is special
value.inspect !== exports.inspect &&
// Also filter out any prototype objects using the circular check.
!(value.constructor && value.constructor.prototype === value)) {
var ret = value.inspect(recurseTimes, ctx);
if (!isString(ret)) {
ret = formatValue(ctx, ret, recurseTimes);
}
return ret;
}
// Primitive types cannot have properties
var primitive = formatPrimitive(ctx, value);
if (primitive) {
return primitive;
}
// Look up the keys of the object.
var keys = Object.keys(value);
var visibleKeys = arrayToHash(keys);
if (ctx.showHidden) {
keys = Object.getOwnPropertyNames(value);
}
// IE doesn't make error fields non-enumerable
// http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
if (isError(value)
&& (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
return formatError(value);
}
// Some type of object without properties can be shortcutted.
if (keys.length === 0) {
if (isFunction(value)) {
var name = value.name ? ': ' + value.name : '';
return ctx.stylize('[Function' + name + ']', 'special');
}
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
}
if (isDate(value)) {
return ctx.stylize(Date.prototype.toString.call(value), 'date');
}
if (isError(value)) {
return formatError(value);
}
}
var base = '', array = false, braces = ['{', '}'];
// Make Array say that they are Array
if (isArray(value)) {
array = true;
braces = ['[', ']'];
}
// Make functions say that they are functions
if (isFunction(value)) {
var n = value.name ? ': ' + value.name : '';
base = ' [Function' + n + ']';
}
// Make RegExps say that they are RegExps
if (isRegExp(value)) {
base = ' ' + RegExp.prototype.toString.call(value);
}
// Make dates with properties first say the date
if (isDate(value)) {
base = ' ' + Date.prototype.toUTCString.call(value);
}
// Make error with message first say the error
if (isError(value)) {
base = ' ' + formatError(value);
}
if (keys.length === 0 && (!array || value.length == 0)) {
return braces[0] + base + braces[1];
}
if (recurseTimes < 0) {
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
} else {
return ctx.stylize('[Object]', 'special');
}
}
ctx.seen.push(value);
var output;
if (array) {
output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
} else {
output = keys.map(function(key) {
return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
});
}
ctx.seen.pop();
return reduceToSingleString(output, base, braces);
}
function formatPrimitive(ctx, value) {
if (isUndefined(value))
return ctx.stylize('undefined', 'undefined');
if (isString(value)) {
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
.replace(/'/g, "\\'")
.replace(/\\"/g, '"') + '\'';
return ctx.stylize(simple, 'string');
}
if (isNumber(value))
return ctx.stylize('' + value, 'number');
if (isBoolean(value))
return ctx.stylize('' + value, 'boolean');
// For some reason typeof null is "object", so special case here.
if (isNull(value))
return ctx.stylize('null', 'null');
}
function formatError(value) {
return '[' + Error.prototype.toString.call(value) + ']';
}
function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
var output = [];
for (var i = 0, l = value.length; i < l; ++i) {
if (hasOwnProperty(value, String(i))) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
String(i), true));
} else {
output.push('');
}
}
keys.forEach(function(key) {
if (!key.match(/^\d+$/)) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
key, true));
}
});
return output;
}
function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
var name, str, desc;
desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
if (desc.get) {
if (desc.set) {
str = ctx.stylize('[Getter/Setter]', 'special');
} else {
str = ctx.stylize('[Getter]', 'special');
}
} else {
if (desc.set) {
str = ctx.stylize('[Setter]', 'special');
}
}
if (!hasOwnProperty(visibleKeys, key)) {
name = '[' + key + ']';
}
if (!str) {
if (ctx.seen.indexOf(desc.value) < 0) {
if (isNull(recurseTimes)) {
str = formatValue(ctx, desc.value, null);
} else {
str = formatValue(ctx, desc.value, recurseTimes - 1);
}
if (str.indexOf('\n') > -1) {
if (array) {
str = str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n').substr(2);
} else {
str = '\n' + str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n');
}
}
} else {
str = ctx.stylize('[Circular]', 'special');
}
}
if (isUndefined(name)) {
if (array && key.match(/^\d+$/)) {
return str;
}
name = JSON.stringify('' + key);
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
name = name.substr(1, name.length - 2);
name = ctx.stylize(name, 'name');
} else {
name = name.replace(/'/g, "\\'")
.replace(/\\"/g, '"')
.replace(/(^"|"$)/g, "'");
name = ctx.stylize(name, 'string');
}
}
return name + ': ' + str;
}
function reduceToSingleString(output, base, braces) {
var numLinesEst = 0;
var length = output.reduce(function(prev, cur) {
numLinesEst++;
if (cur.indexOf('\n') >= 0) numLinesEst++;
return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
}, 0);
if (length > 60) {
return braces[0] +
(base === '' ? '' : base + '\n ') +
' ' +
output.join(',\n ') +
' ' +
braces[1];
}
return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}
// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
return Array.isArray(ar);
}
exports.isArray = isArray;
function isBoolean(arg) {
return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;
function isNull(arg) {
return arg === null;
}
exports.isNull = isNull;
function isNullOrUndefined(arg) {
return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;
function isNumber(arg) {
return typeof arg === 'number';
}
exports.isNumber = isNumber;
function isString(arg) {
return typeof arg === 'string';
}
exports.isString = isString;
function isSymbol(arg) {
return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;
function isUndefined(arg) {
return arg === void 0;
}
exports.isUndefined = isUndefined;
function isRegExp(re) {
return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;
function isObject(arg) {
return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;
function isDate(d) {
return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;
function isError(e) {
return isObject(e) &&
(objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;
function isFunction(arg) {
return typeof arg === 'function';
}
exports.isFunction = isFunction;
function isPrimitive(arg) {
return arg === null ||
typeof arg === 'boolean' ||
typeof arg === 'number' ||
typeof arg === 'string' ||
typeof arg === 'symbol' || // ES6 symbol
typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;
exports.isBuffer = require('./support/isBuffer');
function objectToString(o) {
return Object.prototype.toString.call(o);
}
function pad(n) {
return n < 10 ? '0' + n.toString(10) : n.toString(10);
}
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
'Oct', 'Nov', 'Dec'];
// 26 Feb 16:19:34
function timestamp() {
var d = new Date();
var time = [pad(d.getHours()),
pad(d.getMinutes()),
pad(d.getSeconds())].join(':');
return [d.getDate(), months[d.getMonth()], time].join(' ');
}
// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};
/**
* Inherit the prototype methods from one constructor into another.
*
* The Function.prototype.inherits from lang.js rewritten as a standalone
* function (not on Function.prototype). NOTE: If this file is to be loaded
* during bootstrapping this function needs to be rewritten using some native
* functions as prototype setup using normal JavaScript does not work as
* expected during bootstrapping (see mirror.js in r114903).
*
* @param {function} ctor Constructor function which needs to inherit the
* prototype.
* @param {function} superCtor Constructor function to inherit prototype from.
*/
exports.inherits = require('inherits');
exports._extend = function(origin, add) {
// Don't do anything if add isn't an object
if (!add || !isObject(add)) return origin;
var keys = Object.keys(add);
var i = keys.length;
while (i--) {
origin[keys[i]] = add[keys[i]];
}
return origin;
};
function hasOwnProperty(obj, prop) {
return Object.prototype.hasOwnProperty.call(obj, prop);
}
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":8,"_process":7,"inherits":6}],10:[function(require,module,exports){
(function (global){
/*global window, global*/
var util = require("util")
var assert = require("assert")
var now = require("date-now")
var slice = Array.prototype.slice
var console
var times = {}
if (typeof global !== "undefined" && global.console) {
console = global.console
} else if (typeof window !== "undefined" && window.console) {
console = window.console
} else {
console = {}
}
var functions = [
[log, "log"],
[info, "info"],
[warn, "warn"],
[error, "error"],
[time, "time"],
[timeEnd, "timeEnd"],
[trace, "trace"],
[dir, "dir"],
[consoleAssert, "assert"]
]
for (var i = 0; i < functions.length; i++) {
var tuple = functions[i]
var f = tuple[0]
var name = tuple[1]
if (!console[name]) {
console[name] = f
}
}
module.exports = console
function log() {}
function info() {
console.log.apply(console, arguments)
}
function warn() {
console.log.apply(console, arguments)
}
function error() {
console.warn.apply(console, arguments)
}
function time(label) {
times[label] = now()
}
function timeEnd(label) {
var time = times[label]
if (!time) {
throw new Error("No such label: " + label)
}
var duration = now() - time
console.log(label + ": " + duration + "ms")
}
function trace() {
var err = new Error()
err.name = "Trace"
err.message = util.format.apply(null, arguments)
console.error(err.stack)
}
function dir(object) {
console.log(util.inspect(object) + "\n")
}
function consoleAssert(expression) {
if (!expression) {
var arr = slice.call(arguments, 1)
assert.ok(false, util.format.apply(null, arr))
}
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"assert":4,"date-now":11,"util":9}],11:[function(require,module,exports){
module.exports = now
function now() {
return new Date().getTime()
}
},{}],12:[function(require,module,exports){
// Underscore.js 1.6.0
// http://underscorejs.org
// (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// Underscore may be freely distributed under the MIT license.
(function() {
// Baseline setup
// --------------
// Establish the root object, `window` in the browser, or `exports` on the server.
var root = this;
// Save the previous value of the `_` variable.
var previousUnderscore = root._;
// Establish the object that gets returned to break out of a loop iteration.
var breaker = {};
// Save bytes in the minified (but not gzipped) version:
var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
// Create quick reference variables for speed access to core prototypes.
var
push = ArrayProto.push,
slice = ArrayProto.slice,
concat = ArrayProto.concat,
toString = ObjProto.toString,
hasOwnProperty = ObjProto.hasOwnProperty;
// All **ECMAScript 5** native function implementations that we hope to use
// are declared here.
var
nativeForEach = ArrayProto.forEach,
nativeMap = ArrayProto.map,
nativeReduce = ArrayProto.reduce,
nativeReduceRight = ArrayProto.reduceRight,
nativeFilter = ArrayProto.filter,
nativeEvery = ArrayProto.every,
nativeSome = ArrayProto.some,
nativeIndexOf = ArrayProto.indexOf,
nativeLastIndexOf = ArrayProto.lastIndexOf,
nativeIsArray = Array.isArray,
nativeKeys = Object.keys,
nativeBind = FuncProto.bind;
// Create a safe reference to the Underscore object for use below.
var _ = function(obj) {
if (obj instanceof _) return obj;
if (!(this instanceof _)) return new _(obj);
this._wrapped = obj;
};
// Export the Underscore object for **Node.js**, with
// backwards-compatibility for the old `require()` API. If we're in
// the browser, add `_` as a global object via a string identifier,
// for Closure Compiler "advanced" mode.
if (typeof exports !== 'undefined') {
if (typeof module !== 'undefined' && module.exports) {
exports = module.exports = _;
}
exports._ = _;
} else {
root._ = _;
}
// Current version.
_.VERSION = '1.6.0';
// Collection Functions
// --------------------
// The cornerstone, an `each` implementation, aka `forEach`.
// Handles objects with the built-in `forEach`, arrays, and raw objects.
// Delegates to **ECMAScript 5**'s native `forEach` if available.
var each = _.each = _.forEach = function(obj, iterator, context) {
if (obj == null) return obj;
if (nativeForEach && obj.forEach === nativeForEach) {
obj.forEach(iterator, context);
} else if (obj.length === +obj.length) {
for (var i = 0, length = obj.length; i < length; i++) {
if (iterator.call(context, obj[i], i, obj) === breaker) return;
}
} else {
var keys = _.keys(obj);
for (var i = 0, length = keys.length; i < length; i++) {
if (iterator.call(context, obj[keys[i]], keys[i], obj) === breaker) return;
}
}
return obj;
};
// Return the results of applying the iterator to each element.
// Delegates to **ECMAScript 5**'s native `map` if available.
_.map = _.collect = function(obj, iterator, context) {
var results = [];
if (obj == null) return results;
if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
each(obj, function(value, index, list) {
results.push(iterator.call(context, value, index, list));
});
return results;
};
var reduceError = 'Reduce of empty array with no initial value';
// **Reduce** builds up a single result from a list of values, aka `inject`,
// or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
_.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
var initial = arguments.length > 2;
if (obj == null) obj = [];
if (nativeReduce && obj.reduce === nativeReduce) {
if (context) iterator = _.bind(iterator, context);
return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
}
each(obj, function(value, index, list) {
if (!initial) {
memo = value;
initial = true;
} else {
memo = iterator.call(context, memo, value, index, list);
}
});
if (!initial) throw new TypeError(reduceError);
return memo;
};
// The right-associative version of reduce, also known as `foldr`.
// Delegates to **ECMAScript 5**'s native `reduceRight` if available.
_.reduceRight = _.foldr = function(obj, iterator, memo, context) {
var initial = arguments.length > 2;
if (obj == null) obj = [];
if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
if (context) iterator = _.bind(iterator, context);
return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
}
var length = obj.length;
if (length !== +length) {
var keys = _.keys(obj);
length = keys.length;
}
each(obj, function(value, index, list) {
index = keys ? keys[--length] : --length;
if (!initial) {
memo = obj[index];
initial = true;
} else {
memo = iterator.call(context, memo, obj[index], index, list);
}
});
if (!initial) throw new TypeError(reduceError);
return memo;
};
// Return the first value which passes a truth test. Aliased as `detect`.
_.find = _.detect = function(obj, predicate, context) {
var result;
any(obj, function(value, index, list) {
if (predicate.call(context, value, index, list)) {
result = value;
return true;
}
});
return result;
};
// Return all the elements that pass a truth test.
// Delegates to **ECMAScript 5**'s native `filter` if available.
// Aliased as `select`.
_.filter = _.select = function(obj, predicate, context) {
var results = [];
if (obj == null) return results;
if (nativeFilter && obj.filter === nativeFilter) return obj.filter(predicate, context);
each(obj, function(value, index, list) {
if (predicate.call(context, value, index, list)) results.push(value);
});
return results;
};
// Return all the elements for which a truth test fails.
_.reject = function(obj, predicate, context) {
return _.filter(obj, function(value, index, list) {
return !predicate.call(context, value, index, list);
}, context);
};
// Determine whether all of the elements match a truth test.
// Delegates to **ECMAScript 5**'s native `every` if available.
// Aliased as `all`.
_.every = _.all = function(obj, predicate, context) {
predicate || (predicate = _.identity);
var result = true;
if (obj == null) return result;
if (nativeEvery && obj.every === nativeEvery) return obj.every(predicate, context);
each(obj, function(value, index, list) {
if (!(result = result && predicate.call(context, value, index, list))) return breaker;
});
return !!result;
};
// Determine if at least one element in the object matches a truth test.
// Delegates to **ECMAScript 5**'s native `some` if available.
// Aliased as `any`.
var any = _.some = _.any = function(obj, predicate, context) {
predicate || (predicate = _.identity);
var result = false;
if (obj == null) return result;
if (nativeSome && obj.some === nativeSome) return obj.some(predicate, context);
each(obj, function(value, index, list) {
if (result || (result = predicate.call(context, value, index, list))) return breaker;
});
return !!result;
};
// Determine if the array or object contains a given value (using `===`).
// Aliased as `include`.
_.contains = _.include = function(obj, target) {
if (obj == null) return false;
if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
return any(obj, function(value) {
return value === target;
});
};
// Invoke a method (with arguments) on every item in a collection.
_.invoke = function(obj, method) {
var args = slice.call(arguments, 2);
var isFunc = _.isFunction(method);
return _.map(obj, function(value) {
return (isFunc ? method : value[method]).apply(value, args);
});
};
// Convenience version of a common use case of `map`: fetching a property.
_.pluck = function(obj, key) {
return _.map(obj, _.property(key));
};
// Convenience version of a common use case of `filter`: selecting only objects
// containing specific `key:value` pairs.
_.where = function(obj, attrs) {
return _.filter(obj, _.matches(attrs));
};
// Convenience version of a common use case of `find`: getting the first object
// containing specific `key:value` pairs.
_.findWhere = function(obj, attrs) {
return _.find(obj, _.matches(attrs));
};
// Return the maximum element or (element-based computation).
// Can't optimize arrays of integers longer than 65,535 elements.
// See [WebKit Bug 80797](https://bugs.webkit.org/show_bug.cgi?id=80797)
_.max = function(obj, iterator, context) {
if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
return Math.max.apply(Math, obj);
}
var result = -Infinity, lastComputed = -Infinity;
each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value;
if (computed > lastComputed) {
result = value;
lastComputed = computed;
}
});
return result;
};
// Return the minimum element (or element-based computation).
_.min = function(obj, iterator, context) {
if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
return Math.min.apply(Math, obj);
}
var result = Infinity, lastComputed = Infinity;
each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value;
if (computed < lastComputed) {
result = value;
lastComputed = computed;
}
});
return result;
};
// Shuffle an array, using the modern version of the
// [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
_.shuffle = function(obj) {
var rand;
var index = 0;
var shuffled = [];
each(obj, function(value) {
rand = _.random(index++);
shuffled[index - 1] = shuffled[rand];
shuffled[rand] = value;
});
return shuffled;
};
// Sample **n** random values from a collection.
// If **n** is not specified, returns a single random element.
// The internal `guard` argument allows it to work with `map`.
_.sample = function(obj, n, guard) {
if (n == null || guard) {
if (obj.length !== +obj.length) obj = _.values(obj);
return obj[_.random(obj.length - 1)];
}
return _.shuffle(obj).slice(0, Math.max(0, n));
};
// An internal function to generate lookup iterators.
var lookupIterator = function(value) {
if (value == null) return _.identity;
if (_.isFunction(value)) return value;
return _.property(value);
};
// Sort the object's values by a criterion produced by an iterator.
_.sortBy = function(obj, iterator, context) {
iterator = lookupIterator(iterator);
return _.pluck(_.map(obj, function(value, index, list) {
return {
value: value,
index: index,
criteria: iterator.call(context, value, index, list)
};
}).sort(function(left, right) {
var a = left.criteria;
var b = right.criteria;
if (a !== b) {
if (a > b || a === void 0) return 1;
if (a < b || b === void 0) return -1;
}
return left.index - right.index;
}), 'value');
};
// An internal function used for aggregate "group by" operations.
var group = function(behavior) {
return function(obj, iterator, context) {
var result = {};
iterator = lookupIterator(iterator);
each(obj, function(value, index) {
var key = iterator.call(context, value, index, obj);
behavior(result, key, value);
});
return result;
};
};
// Groups the object's values by a criterion. Pass either a string attribute
// to group by, or a function that returns the criterion.
_.groupBy = group(function(result, key, value) {
_.has(result, key) ? result[key].push(value) : result[key] = [value];
});
// Indexes the object's values by a criterion, similar to `groupBy`, but for
// when you know that your index values will be unique.
_.indexBy = group(function(result, key, value) {
result[key] = value;
});
// Counts instances of an object that group by a certain criterion. Pass
// either a string attribute to count by, or a function that returns the
// criterion.
_.countBy = group(function(result, key) {
_.has(result, key) ? result[key]++ : result[key] = 1;
});
// Use a comparator function to figure out the smallest index at which
// an object should be inserted so as to maintain order. Uses binary search.
_.sortedIndex = function(array, obj, iterator, context) {
iterator = lookupIterator(iterator);
var value = iterator.call(context, obj);
var low = 0, high = array.length;
while (low < high) {
var mid = (low + high) >>> 1;
iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
}
return low;
};
// Safely create a real, live array from anything iterable.
_.toArray = function(obj) {
if (!obj) return [];
if (_.isArray(obj)) return slice.call(obj);
if (obj.length === +obj.length) return _.map(obj, _.identity);
return _.values(obj);
};
// Return the number of elements in an object.
_.size = function(obj) {
if (obj == null) return 0;
return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;
};
// Array Functions
// ---------------
// Get the first element of an array. Passing **n** will return the first N
// values in the array. Aliased as `head` and `take`. The **guard** check
// allows it to work with `_.map`.
_.first = _.head = _.take = function(array, n, guard) {
if (array == null) return void 0;
if ((n == null) || guard) return array[0];
if (n < 0) return [];
return slice.call(array, 0, n);
};
// Returns everything but the last entry of the array. Especially useful on
// the arguments object. Passing **n** will return all the values in
// the array, excluding the last N. The **guard** check allows it to work with
// `_.map`.
_.initial = function(array, n, guard) {
return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
};
// Get the last element of an array. Passing **n** will return the last N
// values in the array. The **guard** check allows it to work with `_.map`.
_.last = function(array, n, guard) {
if (array == null) return void 0;
if ((n == null) || guard) return array[array.length - 1];
return slice.call(array, Math.max(array.length - n, 0));
};
// Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
// Especially useful on the arguments object. Passing an **n** will return
// the rest N values in the array. The **guard**
// check allows it to work with `_.map`.
_.rest = _.tail = _.drop = function(array, n, guard) {
return slice.call(array, (n == null) || guard ? 1 : n);
};
// Trim out all falsy values from an array.
_.compact = function(array) {
return _.filter(array, _.identity);
};
// Internal implementation of a recursive `flatten` function.
var flatten = function(input, shallow, output) {
if (shallow && _.every(input, _.isArray)) {
return concat.apply(output, input);
}
each(input, function(value) {
if (_.isArray(value) || _.isArguments(value)) {
shallow ? push.apply(output, value) : flatten(value, shallow, output);
} else {
output.push(value);
}
});
return output;
};
// Flatten out an array, either recursively (by default), or just one level.
_.flatten = function(array, shallow) {
return flatten(array, shallow, []);
};
// Return a version of the array that does not contain the specified value(s).
_.without = function(array) {
return _.difference(array, slice.call(arguments, 1));
};
// Split an array into two arrays: one whose elements all satisfy the given
// predicate, and one whose elements all do not satisfy the predicate.
_.partition = function(array, predicate) {
var pass = [], fail = [];
each(array, function(elem) {
(predicate(elem) ? pass : fail).push(elem);
});
return [pass, fail];
};
// Produce a duplicate-free version of the array. If the array has already
// been sorted, you have the option of using a faster algorithm.
// Aliased as `unique`.
_.uniq = _.unique = function(array, isSorted, iterator, context) {
if (_.isFunction(isSorted)) {
context = iterator;
iterator = isSorted;
isSorted = false;
}
var initial = iterator ? _.map(array, iterator, context) : array;
var results = [];
var seen = [];
each(initial, function(value, index) {
if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {
seen.push(value);
results.push(array[index]);
}
});
return results;
};
// Produce an array that contains the union: each distinct element from all of
// the passed-in arrays.
_.union = function() {
return _.uniq(_.flatten(arguments, true));
};
// Produce an array that contains every item shared between all the
// passed-in arrays.
_.intersection = function(array) {
var rest = slice.call(arguments, 1);
return _.filter(_.uniq(array), function(item) {
return _.every(rest, function(other) {
return _.contains(other, item);
});
});
};
// Take the difference between one array and a number of other arrays.
// Only the elements present in just the first array will remain.
_.difference = function(array) {
var rest = concat.apply(ArrayProto, slice.call(arguments, 1));
return _.filter(array, function(value){ return !_.contains(rest, value); });
};
// Zip together multiple lists into a single array -- elements that share
// an index go together.
_.zip = function() {
var length = _.max(_.pluck(arguments, 'length').concat(0));
var results = new Array(length);
for (var i = 0; i < length; i++) {
results[i] = _.pluck(arguments, '' + i);
}
return results;
};
// Converts lists into objects. Pass either a single array of `[key, value]`
// pairs, or two parallel arrays of the same length -- one of keys, and one of
// the corresponding values.
_.object = function(list, values) {
if (list == null) return {};
var result = {};
for (var i = 0, length = list.length; i < length; i++) {
if (values) {
result[list[i]] = values[i];
} else {
result[list[i][0]] = list[i][1];
}
}
return result;
};
// If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
// we need this function. Return the position of the first occurrence of an
// item in an array, or -1 if the item is not included in the array.
// Delegates to **ECMAScript 5**'s native `indexOf` if available.
// If the array is large and already in sort order, pass `true`
// for **isSorted** to use binary search.
_.indexOf = function(array, item, isSorted) {
if (array == null) return -1;
var i = 0, length = array.length;
if (isSorted) {
if (typeof isSorted == 'number') {
i = (isSorted < 0 ? Math.max(0, length + isSorted) : isSorted);
} else {
i = _.sortedIndex(array, item);
return array[i] === item ? i : -1;
}
}
if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
for (; i < length; i++) if (array[i] === item) return i;
return -1;
};
// Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
_.lastIndexOf = function(array, item, from) {
if (array == null) return -1;
var hasIndex = from != null;
if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) {
return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);
}
var i = (hasIndex ? from : array.length);
while (i--) if (array[i] === item) return i;
return -1;
};
// Generate an integer Array containing an arithmetic progression. A port of
// the native Python `range()` function. See
// [the Python documentation](http://docs.python.org/library/functions.html#range).
_.range = function(start, stop, step) {
if (arguments.length <= 1) {
stop = start || 0;
start = 0;
}
step = arguments[2] || 1;
var length = Math.max(Math.ceil((stop - start) / step), 0);
var idx = 0;
var range = new Array(length);
while(idx < length) {
range[idx++] = start;
start += step;
}
return range;
};
// Function (ahem) Functions
// ------------------
// Reusable constructor function for prototype setting.
var ctor = function(){};
// Create a function bound to a given object (assigning `this`, and arguments,
// optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
// available.
_.bind = function(func, context) {
var args, bound;
if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
if (!_.isFunction(func)) throw new TypeError;
args = slice.call(arguments, 2);
return bound = function() {
if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
ctor.prototype = func.prototype;
var self = new ctor;
ctor.prototype = null;
var result = func.apply(self, args.concat(slice.call(arguments)));
if (Object(result) === result) return result;
return self;
};
};
// Partially apply a function by creating a version that has had some of its
// arguments pre-filled, without changing its dynamic `this` context. _ acts
// as a placeholder, allowing any combination of arguments to be pre-filled.
_.partial = function(func) {
var boundArgs = slice.call(arguments, 1);
return function() {
var position = 0;
var args = boundArgs.slice();
for (var i = 0, length = args.length; i < length; i++) {
if (args[i] === _) args[i] = arguments[position++];
}
while (position < arguments.length) args.push(arguments[position++]);
return func.apply(this, args);
};
};
// Bind a number of an object's methods to that object. Remaining arguments
// are the method names to be bound. Useful for ensuring that all callbacks
// defined on an object belong to it.
_.bindAll = function(obj) {
var funcs = slice.call(arguments, 1);
if (funcs.length === 0) throw new Error('bindAll must be passed function names');
each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
return obj;
};
// Memoize an expensive function by storing its results.
_.memoize = function(func, hasher) {
var memo = {};
hasher || (hasher = _.identity);
return function() {
var key = hasher.apply(this, arguments);
return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
};
};
// Delays a function for the given number of milliseconds, and then calls
// it with the arguments supplied.
_.delay = function(func, wait) {
var args = slice.call(arguments, 2);
return setTimeout(function(){ return func.apply(null, args); }, wait);
};
// Defers a function, scheduling it to run after the current call stack has
// cleared.
_.defer = function(func) {
return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
};
// Returns a function, that, when invoked, will only be triggered at most once
// during a given window of time. Normally, the throttled function will run
// as much as it can, without ever going more than once per `wait` duration;
// but if you'd like to disable the execution on the leading edge, pass
// `{leading: false}`. To disable execution on the trailing edge, ditto.
_.throttle = function(func, wait, options) {
var context, args, result;
var timeout = null;
var previous = 0;
options || (options = {});
var later = function() {
previous = options.leading === false ? 0 : _.now();
timeout = null;
result = func.apply(context, args);
context = args = null;
};
return function() {
var now = _.now();
if (!previous && options.leading === false) previous = now;
var remaining = wait - (now - previous);
context = this;
args = arguments;
if (remaining <= 0) {
clearTimeout(timeout);
timeout = null;
previous = now;
result = func.apply(context, args);
context = args = null;
} else if (!timeout && options.trailing !== false) {
timeout = setTimeout(later, remaining);
}
return result;
};
};
// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds. If `immediate` is passed, trigger the function on the
// leading edge, instead of the trailing.
_.debounce = function(func, wait, immediate) {
var timeout, args, context, timestamp, result;
var later = function() {
var last = _.now() - timestamp;
if (last < wait) {
timeout = setTimeout(later, wait - last);
} else {
timeout = null;
if (!immediate) {
result = func.apply(context, args);
context = args = null;
}
}
};
return function() {
context = this;
args = arguments;
timestamp = _.now();
var callNow = immediate && !timeout;
if (!timeout) {
timeout = setTimeout(later, wait);
}
if (callNow) {
result = func.apply(context, args);
context = args = null;
}
return result;
};
};
// Returns a function that will be executed at most one time, no matter how
// often you call it. Useful for lazy initialization.
_.once = function(func) {
var ran = false, memo;
return function() {
if (ran) return memo;
ran = true;
memo = func.apply(this, arguments);
func = null;
return memo;
};
};
// Returns the first function passed as an argument to the second,
// allowing you to adjust arguments, run code before and after, and
// conditionally execute the original function.
_.wrap = function(func, wrapper) {
return _.partial(wrapper, func);
};
// Returns a function that is the composition of a list of functions, each
// consuming the return value of the function that follows.
_.compose = function() {
var funcs = arguments;
return function() {
var args = arguments;
for (var i = funcs.length - 1; i >= 0; i--) {
args = [funcs[i].apply(this, args)];
}
return args[0];
};
};
// Returns a function that will only be executed after being called N times.
_.after = function(times, func) {
return function() {
if (--times < 1) {
return func.apply(this, arguments);
}
};
};
// Object Functions
// ----------------
// Retrieve the names of an object's properties.
// Delegates to **ECMAScript 5**'s native `Object.keys`
_.keys = function(obj) {
if (!_.isObject(obj)) return [];
if (nativeKeys) return nativeKeys(obj);
var keys = [];
for (var key in obj) if (_.has(obj, key)) keys.push(key);
return keys;
};
// Retrieve the values of an object's properties.
_.values = function(obj) {
var keys = _.keys(obj);
var length = keys.length;
var values = new Array(length);
for (var i = 0; i < length; i++) {
values[i] = obj[keys[i]];
}
return values;
};
// Convert an object into a list of `[key, value]` pairs.
_.pairs = function(obj) {
var keys = _.keys(obj);
var length = keys.length;
var pairs = new Array(length);
for (var i = 0; i < length; i++) {
pairs[i] = [keys[i], obj[keys[i]]];
}
return pairs;
};
// Invert the keys and values of an object. The values must be serializable.
_.invert = function(obj) {
var result = {};
var keys = _.keys(obj);
for (var i = 0, length = keys.length; i < length; i++) {
result[obj[keys[i]]] = keys[i];
}
return result;
};
// Return a sorted list of the function names available on the object.
// Aliased as `methods`
_.functions = _.methods = function(obj) {
var names = [];
for (var key in obj) {
if (_.isFunction(obj[key])) names.push(key);
}
return names.sort();
};
// Extend a given object with all the properties in passed-in object(s).
_.extend = function(obj) {
each(slice.call(arguments, 1), function(source) {
if (source) {
for (var prop in source) {
obj[prop] = source[prop];
}
}
});
return obj;
};
// Return a copy of the object only containing the whitelisted properties.
_.pick = function(obj) {
var copy = {};
var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
each(keys, function(key) {
if (key in obj) copy[key] = obj[key];
});
return copy;
};
// Return a copy of the object without the blacklisted properties.
_.omit = function(obj) {
var copy = {};
var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
for (var key in obj) {
if (!_.contains(keys, key)) copy[key] = obj[key];
}
return copy;
};
// Fill in a given object with default properties.
_.defaults = function(obj) {
each(slice.call(arguments, 1), function(source) {
if (source) {
for (var prop in source) {
if (obj[prop] === void 0) obj[prop] = source[prop];
}
}
});
return obj;
};
// Create a (shallow-cloned) duplicate of an object.
_.clone = function(obj) {
if (!_.isObject(obj)) return obj;
return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
};
// Invokes interceptor with the obj, and then returns obj.
// The primary purpose of this method is to "tap into" a method chain, in
// order to perform operations on intermediate results within the chain.
_.tap = function(obj, interceptor) {
interceptor(obj);
return obj;
};
// Internal recursive comparison function for `isEqual`.
var eq = function(a, b, aStack, bStack) {
// Identical objects are equal. `0 === -0`, but they aren't identical.
// See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
if (a === b) return a !== 0 || 1 / a == 1 / b;
// A strict comparison is necessary because `null == undefined`.
if (a == null || b == null) return a === b;
// Unwrap any wrapped objects.
if (a instanceof _) a = a._wrapped;
if (b instanceof _) b = b._wrapped;
// Compare `[[Class]]` names.
var className = toString.call(a);
if (className != toString.call(b)) return false;
switch (className) {
// Strings, numbers, dates, and booleans are compared by value.
case '[object String]':
// Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
// equivalent to `new String("5")`.
return a == String(b);
case '[object Number]':
// `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
// other numeric values.
return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
case '[object Date]':
case '[object Boolean]':
// Coerce dates and booleans to numeric primitive values. Dates are compared by their
// millisecond representations. Note that invalid dates with millisecond representations
// of `NaN` are not equivalent.
return +a == +b;
// RegExps are compared by their source patterns and flags.
case '[object RegExp]':
return a.source == b.source &&
a.global == b.global &&
a.multiline == b.multiline &&
a.ignoreCase == b.ignoreCase;
}
if (typeof a != 'object' || typeof b != 'object') return false;
// Assume equality for cyclic structures. The algorithm for detecting cyclic
// structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
var length = aStack.length;
while (length--) {
// Linear search. Performance is inversely proportional to the number of
// unique nested structures.
if (aStack[length] == a) return bStack[length] == b;
}
// Objects with different constructors are not equivalent, but `Object`s
// from different frames are.
var aCtor = a.constructor, bCtor = b.constructor;
if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
_.isFunction(bCtor) && (bCtor instanceof bCtor))
&& ('constructor' in a && 'constructor' in b)) {
return false;
}
// Add the first object to the stack of traversed objects.
aStack.push(a);
bStack.push(b);
var size = 0, result = true;
// Recursively compare objects and arrays.
if (className == '[object Array]') {
// Compare array lengths to determine if a deep comparison is necessary.
size = a.length;
result = size == b.length;
if (result) {
// Deep compare the contents, ignoring non-numeric properties.
while (size--) {
if (!(result = eq(a[size], b[size], aStack, bStack))) break;
}
}
} else {
// Deep compare objects.
for (var key in a) {
if (_.has(a, key)) {
// Count the expected number of properties.
size++;
// Deep compare each member.
if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;
}
}
// Ensure that both objects contain the same number of properties.
if (result) {
for (key in b) {
if (_.has(b, key) && !(size--)) break;
}
result = !size;
}
}
// Remove the first object from the stack of traversed objects.
aStack.pop();
bStack.pop();
return result;
};
// Perform a deep comparison to check if two objects are equal.
_.isEqual = function(a, b) {
return eq(a, b, [], []);
};
// Is a given array, string, or object empty?
// An "empty" object has no enumerable own-properties.
_.isEmpty = function(obj) {
if (obj == null) return true;
if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
for (var key in obj) if (_.has(obj, key)) return false;
return true;
};
// Is a given value a DOM element?
_.isElement = function(obj) {
return !!(obj && obj.nodeType === 1);
};
// Is a given value an array?
// Delegates to ECMA5's native Array.isArray
_.isArray = nativeIsArray || function(obj) {
return toString.call(obj) == '[object Array]';
};
// Is a given variable an object?
_.isObject = function(obj) {
return obj === Object(obj);
};
// Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.
each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {
_['is' + name] = function(obj) {
return toString.call(obj) == '[object ' + name + ']';
};
});
// Define a fallback version of the method in browsers (ahem, IE), where
// there isn't any inspectable "Arguments" type.
if (!_.isArguments(arguments)) {
_.isArguments = function(obj) {
return !!(obj && _.has(obj, 'callee'));
};
}
// Optimize `isFunction` if appropriate.
if (typeof (/./) !== 'function') {
_.isFunction = function(obj) {
return typeof obj === 'function';
};
}
// Is a given object a finite number?
_.isFinite = function(obj) {
return isFinite(obj) && !isNaN(parseFloat(obj));
};
// Is the given value `NaN`? (NaN is the only number which does not equal itself).
_.isNaN = function(obj) {
return _.isNumber(obj) && obj != +obj;
};
// Is a given value a boolean?
_.isBoolean = function(obj) {
return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
};
// Is a given value equal to null?
_.isNull = function(obj) {
return obj === null;
};
// Is a given variable undefined?
_.isUndefined = function(obj) {
return obj === void 0;
};
// Shortcut function for checking if an object has a given property directly
// on itself (in other words, not on a prototype).
_.has = function(obj, key) {
return hasOwnProperty.call(obj, key);
};
// Utility Functions
// -----------------
// Run Underscore.js in *noConflict* mode, returning the `_` variable to its
// previous owner. Returns a reference to the Underscore object.
_.noConflict = function() {
root._ = previousUnderscore;
return this;
};
// Keep the identity function around for default iterators.
_.identity = function(value) {
return value;
};
_.constant = function(value) {
return function () {
return value;
};
};
_.property = function(key) {
return function(obj) {
return obj[key];
};
};
// Returns a predicate for checking whether an object has a given set of `key:value` pairs.
_.matches = function(attrs) {
return function(obj) {
if (obj === attrs) return true; //avoid comparing an object to itself.
for (var key in attrs) {
if (attrs[key] !== obj[key])
return false;
}
return true;
}
};
// Run a function **n** times.
_.times = function(n, iterator, context) {
var accum = Array(Math.max(0, n));
for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i);
return accum;
};
// Return a random integer between min and max (inclusive).
_.random = function(min, max) {
if (max == null) {
max = min;
min = 0;
}
return min + Math.floor(Math.random() * (max - min + 1));
};
// A (possibly faster) way to get the current timestamp as an integer.
_.now = Date.now || function() { return new Date().getTime(); };
// List of HTML entities for escaping.
var entityMap = {
escape: {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;',
"'": '&#x27;'
}
};
entityMap.unescape = _.invert(entityMap.escape);
// Regexes containing the keys and values listed immediately above.
var entityRegexes = {
escape: new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'),
unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g')
};
// Functions for escaping and unescaping strings to/from HTML interpolation.
_.each(['escape', 'unescape'], function(method) {
_[method] = function(string) {
if (string == null) return '';
return ('' + string).replace(entityRegexes[method], function(match) {
return entityMap[method][match];
});
};
});
// If the value of the named `property` is a function then invoke it with the
// `object` as context; otherwise, return it.
_.result = function(object, property) {
if (object == null) return void 0;
var value = object[property];
return _.isFunction(value) ? value.call(object) : value;
};
// Add your own custom functions to the Underscore object.
_.mixin = function(obj) {
each(_.functions(obj), function(name) {
var func = _[name] = obj[name];
_.prototype[name] = function() {
var args = [this._wrapped];
push.apply(args, arguments);
return result.call(this, func.apply(_, args));
};
});
};
// Generate a unique integer id (unique within the entire client session).
// Useful for temporary DOM ids.
var idCounter = 0;
_.uniqueId = function(prefix) {
var id = ++idCounter + '';
return prefix ? prefix + id : id;
};
// By default, Underscore uses ERB-style template delimiters, change the
// following template settings to use alternative delimiters.
_.templateSettings = {
evaluate : /<%([\s\S]+?)%>/g,
interpolate : /<%=([\s\S]+?)%>/g,
escape : /<%-([\s\S]+?)%>/g
};
// When customizing `templateSettings`, if you don't want to define an
// interpolation, evaluation or escaping regex, we need one that is
// guaranteed not to match.
var noMatch = /(.)^/;
// Certain characters need to be escaped so that they can be put into a
// string literal.
var escapes = {
"'": "'",
'\\': '\\',
'\r': 'r',
'\n': 'n',
'\t': 't',
'\u2028': 'u2028',
'\u2029': 'u2029'
};
var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
// JavaScript micro-templating, similar to John Resig's implementation.
// Underscore templating handles arbitrary delimiters, preserves whitespace,
// and correctly escapes quotes within interpolated code.
_.template = function(text, data, settings) {
var render;
settings = _.defaults({}, settings, _.templateSettings);
// Combine delimiters into one regular expression via alternation.
var matcher = new RegExp([
(settings.escape || noMatch).source,
(settings.interpolate || noMatch).source,
(settings.evaluate || noMatch).source
].join('|') + '|$', 'g');
// Compile the template source, escaping string literals appropriately.
var index = 0;
var source = "__p+='";
text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
source += text.slice(index, offset)
.replace(escaper, function(match) { return '\\' + escapes[match]; });
if (escape) {
source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
}
if (interpolate) {
source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
}
if (evaluate) {
source += "';\n" + evaluate + "\n__p+='";
}
index = offset + match.length;
return match;
});
source += "';\n";
// If a variable is not specified, place data values in local scope.
if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
source = "var __t,__p='',__j=Array.prototype.join," +
"print=function(){__p+=__j.call(arguments,'');};\n" +
source + "return __p;\n";
try {
render = new Function(settings.variable || 'obj', '_', source);
} catch (e) {
e.source = source;
throw e;
}
if (data) return render(data, _);
var template = function(data) {
return render.call(this, data, _);
};
// Provide the compiled function source as a convenience for precompilation.
template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
return template;
};
// Add a "chain" function, which will delegate to the wrapper.
_.chain = function(obj) {
return _(obj).chain();
};
// OOP
// ---------------
// If Underscore is called as a function, it returns a wrapped object that
// can be used OO-style. This wrapper holds altered versions of all the
// underscore functions. Wrapped objects may be chained.
// Helper function to continue chaining intermediate results.
var result = function(obj) {
return this._chain ? _(obj).chain() : obj;
};
// Add all of the Underscore functions to the wrapper object.
_.mixin(_);
// Add all mutator Array functions to the wrapper.
each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
var method = ArrayProto[name];
_.prototype[name] = function() {
var obj = this._wrapped;
method.apply(obj, arguments);
if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0];
return result.call(this, obj);
};
});
// Add all accessor Array functions to the wrapper.
each(['concat', 'join', 'slice'], function(name) {
var method = ArrayProto[name];
_.prototype[name] = function() {
return result.call(this, method.apply(this._wrapped, arguments));
};
});
_.extend(_.prototype, {
// Start chaining a wrapped Underscore object.
chain: function() {
this._chain = true;
return this;
},
// Extracts the result from a wrapped and chained object.
value: function() {
return this._wrapped;
}
});
// AMD registration happens at the end for compatibility with AMD loaders
// that may not enforce next-turn semantics on modules. Even though general
// practice for AMD registration is to be anonymous, underscore registers
// as a named module because, like jQuery, it is a base library that is
// popular enough to be bundled in a third party lib, but not be part of
// an AMD load request. Those cases could generate an error when an
// anonymous define() is called outside of a loader request.
if (typeof define === 'function' && define.amd) {
define('underscore', [], function() {
return _;
});
}
}).call(this);
},{}],13:[function(require,module,exports){
/*
* Lexical analysis and token construction.
*/
"use strict";
var _ = require("underscore");
var events = require("events");
var reg = require("./reg.js");
var state = require("./state.js").state;
var unicodeData = require("../data/ascii-identifier-data.js");
var asciiIdentifierStartTable = unicodeData.asciiIdentifierStartTable;
var asciiIdentifierPartTable = unicodeData.asciiIdentifierPartTable;
var nonAsciiIdentifierStartTable = require("../data/non-ascii-identifier-start.js");
var nonAsciiIdentifierPartTable = require("../data/non-ascii-identifier-part-only.js");
// Some of these token types are from JavaScript Parser API
// while others are specific to JSHint parser.
// JS Parser API: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
var Token = {
Identifier: 1,
Punctuator: 2,
NumericLiteral: 3,
StringLiteral: 4,
Comment: 5,
Keyword: 6,
NullLiteral: 7,
BooleanLiteral: 8,
RegExp: 9,
TemplateHead: 10,
TemplateMiddle: 11,
TemplateTail: 12,
NoSubstTemplate: 13
};
var Context = {
Block: 1,
Template: 2
};
// Object that handles postponed lexing verifications that checks the parsed
// environment state.
function asyncTrigger() {
var _checks = [];
return {
push: function(fn) {
_checks.push(fn);
},
check: function() {
for (var check = 0; check < _checks.length; ++check) {
_checks[check]();
}
_checks.splice(0, _checks.length);
}
};
}
/*
* Lexer for JSHint.
*
* This object does a char-by-char scan of the provided source code
* and produces a sequence of tokens.
*
* var lex = new Lexer("var i = 0;");
* lex.start();
* lex.token(); // returns the next token
*
* You have to use the token() method to move the lexer forward
* but you don't have to use its return value to get tokens. In addition
* to token() method returning the next token, the Lexer object also
* emits events.
*
* lex.on("Identifier", function(data) {
* if (data.name.indexOf("_") >= 0) {
* // Produce a warning.
* }
* });
*
* Note that the token() method returns tokens in a JSLint-compatible
* format while the event emitter uses a slightly modified version of
* Mozilla's JavaScript Parser API. Eventually, we will move away from
* JSLint format.
*/
function Lexer(source) {
var lines = source;
if (typeof lines === "string") {
lines = lines
.replace(/\r\n/g, "\n")
.replace(/\r/g, "\n")
.split("\n");
}
// If the first line is a shebang (#!), make it a blank and move on.
// Shebangs are used by Node scripts.
if (lines[0] && lines[0].substr(0, 2) === "#!") {
if (lines[0].indexOf("node") !== -1) {
state.option.node = true;
}
lines[0] = "";
}
this.emitter = new events.EventEmitter();
this.source = source;
this.setLines(lines);
this.prereg = true;
this.line = 0;
this.char = 1;
this.from = 1;
this.input = "";
this.inComment = false;
this.context = [];
this.templateStarts = [];
for (var i = 0; i < state.option.indent; i += 1) {
state.tab += " ";
}
}
Lexer.prototype = {
_lines: [],
inContext: function(ctxType) {
return this.context.length > 0 && this.context[this.context.length - 1].type === ctxType;
},
pushContext: function(ctxType) {
this.context.push({ type: ctxType });
},
popContext: function() {
return this.context.pop();
},
isContext: function(context) {
return this.context.length > 0 && this.context[this.context.length - 1] === context;
},
currentContext: function() {
return this.context.length > 0 && this.context[this.context.length - 1];
},
getLines: function() {
this._lines = state.lines;
return this._lines;
},
setLines: function(val) {
this._lines = val;
state.lines = this._lines;
},
/*
* Return the next i character without actually moving the
* char pointer.
*/
peek: function(i) {
return this.input.charAt(i || 0);
},
/*
* Move the char pointer forward i times.
*/
skip: function(i) {
i = i || 1;
this.char += i;
this.input = this.input.slice(i);
},
/*
* Subscribe to a token event. The API for this method is similar
* Underscore.js i.e. you can subscribe to multiple events with
* one call:
*
* lex.on("Identifier Number", function(data) {
* // ...
* });
*/
on: function(names, listener) {
names.split(" ").forEach(function(name) {
this.emitter.on(name, listener);
}.bind(this));
},
/*
* Trigger a token event. All arguments will be passed to each
* listener.
*/
trigger: function() {
this.emitter.emit.apply(this.emitter, Array.prototype.slice.call(arguments));
},
/*
* Postpone a token event. the checking condition is set as
* last parameter, and the trigger function is called in a
* stored callback. To be later called using the check() function
* by the parser. This avoids parser's peek() to give the lexer
* a false context.
*/
triggerAsync: function(type, args, checks, fn) {
checks.push(function() {
if (fn()) {
this.trigger(type, args);
}
}.bind(this));
},
/*
* Extract a punctuator out of the next sequence of characters
* or return 'null' if its not possible.
*
* This method's implementation was heavily influenced by the
* scanPunctuator function in the Esprima parser's source code.
*/
scanPunctuator: function() {
var ch1 = this.peek();
var ch2, ch3, ch4;
switch (ch1) {
// Most common single-character punctuators
case ".":
if ((/^[0-9]$/).test(this.peek(1))) {
return null;
}
if (this.peek(1) === "." && this.peek(2) === ".") {
return {
type: Token.Punctuator,
value: "..."
};
}
/* falls through */
case "(":
case ")":
case ";":
case ",":
case "[":
case "]":
case ":":
case "~":
case "?":
return {
type: Token.Punctuator,
value: ch1
};
// A block/object opener
case "{":
this.pushContext(Context.Block);
return {
type: Token.Punctuator,
value: ch1
};
// A block/object closer
case "}":
if (this.inContext(Context.Block)) {
this.popContext();
}
return {
type: Token.Punctuator,
value: ch1
};
// A pound sign (for Node shebangs)
case "#":
return {
type: Token.Punctuator,
value: ch1
};
// We're at the end of input
case "":
return null;
}
// Peek more characters
ch2 = this.peek(1);
ch3 = this.peek(2);
ch4 = this.peek(3);
// 4-character punctuator: >>>=
if (ch1 === ">" && ch2 === ">" && ch3 === ">" && ch4 === "=") {
return {
type: Token.Punctuator,
value: ">>>="
};
}
// 3-character punctuators: === !== >>> <<= >>=
if (ch1 === "=" && ch2 === "=" && ch3 === "=") {
return {
type: Token.Punctuator,
value: "==="
};
}
if (ch1 === "!" && ch2 === "=" && ch3 === "=") {
return {
type: Token.Punctuator,
value: "!=="
};
}
if (ch1 === ">" && ch2 === ">" && ch3 === ">") {
return {
type: Token.Punctuator,
value: ">>>"
};
}
if (ch1 === "<" && ch2 === "<" && ch3 === "=") {
return {
type: Token.Punctuator,
value: "<<="
};
}
if (ch1 === ">" && ch2 === ">" && ch3 === "=") {
return {
type: Token.Punctuator,
value: ">>="
};
}
// Fat arrow punctuator
if (ch1 === "=" && ch2 === ">") {
return {
type: Token.Punctuator,
value: ch1 + ch2
};
}
// 2-character punctuators: <= >= == != ++ -- << >> && ||
// += -= *= %= &= |= ^= (but not /=, see below)
if (ch1 === ch2 && ("+-<>&|".indexOf(ch1) >= 0)) {
return {
type: Token.Punctuator,
value: ch1 + ch2
};
}
if ("<>=!+-*%&|^".indexOf(ch1) >= 0) {
if (ch2 === "=") {
return {
type: Token.Punctuator,
value: ch1 + ch2
};
}
return {
type: Token.Punctuator,
value: ch1
};
}
// Special case: /=.
if (ch1 === "/") {
if (ch2 === "=") {
return {
type: Token.Punctuator,
value: "/="
};
}
return {
type: Token.Punctuator,
value: "/"
};
}
return null;
},
/*
* Extract a comment out of the next sequence of characters and/or
* lines or return 'null' if its not possible. Since comments can
* span across multiple lines this method has to move the char
* pointer.
*
* In addition to normal JavaScript comments (// and /*) this method
* also recognizes JSHint- and JSLint-specific comments such as
* /*jshint, /*jslint, /*globals and so on.
*/
scanComments: function() {
var ch1 = this.peek();
var ch2 = this.peek(1);
var rest = this.input.substr(2);
var startLine = this.line;
var startChar = this.char;
// Create a comment token object and make sure it
// has all the data JSHint needs to work with special
// comments.
function commentToken(label, body, opt) {
var special = ["jshint", "jslint", "members", "member", "globals", "global", "exported"];
var isSpecial = false;
var value = label + body;
var commentType = "plain";
opt = opt || {};
if (opt.isMultiline) {
value += "*/";
}
body = body.replace(/\n/g, " ");
special.forEach(function(str) {
if (isSpecial) {
return;
}
// Don't recognize any special comments other than jshint for single-line
// comments. This introduced many problems with legit comments.
if (label === "//" && str !== "jshint") {
return;
}
if (body.charAt(str.length) === " " && body.substr(0, str.length) === str) {
isSpecial = true;
label = label + str;
body = body.substr(str.length);
}
if (!isSpecial && body.charAt(0) === " " && body.charAt(str.length + 1) === " " &&
body.substr(1, str.length) === str) {
isSpecial = true;
label = label + " " + str;
body = body.substr(str.length + 1);
}
if (!isSpecial) {
return;
}
switch (str) {
case "member":
commentType = "members";
break;
case "global":
commentType = "globals";
break;
default:
commentType = str;
}
});
return {
type: Token.Comment,
commentType: commentType,
value: value,
body: body,
isSpecial: isSpecial,
isMultiline: opt.isMultiline || false,
isMalformed: opt.isMalformed || false
};
}
// End of unbegun comment. Raise an error and skip that input.
if (ch1 === "*" && ch2 === "/") {
this.trigger("error", {
code: "E018",
line: startLine,
character: startChar
});
this.skip(2);
return null;
}
// Comments must start either with // or /*
if (ch1 !== "/" || (ch2 !== "*" && ch2 !== "/")) {
return null;
}
// One-line comment
if (ch2 === "/") {
this.skip(this.input.length); // Skip to the EOL.
return commentToken("//", rest);
}
var body = "";
/* Multi-line comment */
if (ch2 === "*") {
this.inComment = true;
this.skip(2);
while (this.peek() !== "*" || this.peek(1) !== "/") {
if (this.peek() === "") { // End of Line
body += "\n";
// If we hit EOF and our comment is still unclosed,
// trigger an error and end the comment implicitly.
if (!this.nextLine()) {
this.trigger("error", {
code: "E017",
line: startLine,
character: startChar
});
this.inComment = false;
return commentToken("/*", body, {
isMultiline: true,
isMalformed: true
});
}
} else {
body += this.peek();
this.skip();
}
}
this.skip(2);
this.inComment = false;
return commentToken("/*", body, { isMultiline: true });
}
},
/*
* Extract a keyword out of the next sequence of characters or
* return 'null' if its not possible.
*/
scanKeyword: function() {
var result = /^[a-zA-Z_$][a-zA-Z0-9_$]*/.exec(this.input);
var keywords = [
"if", "in", "do", "var", "for", "new",
"try", "let", "this", "else", "case",
"void", "with", "enum", "while", "break",
"catch", "throw", "const", "yield", "class",
"super", "return", "typeof", "delete",
"switch", "export", "import", "default",
"finally", "extends", "function", "continue",
"debugger", "instanceof"
];
if (result && keywords.indexOf(result[0]) >= 0) {
return {
type: Token.Keyword,
value: result[0]
};
}
return null;
},
/*
* Extract a JavaScript identifier out of the next sequence of
* characters or return 'null' if its not possible. In addition,
* to Identifier this method can also produce BooleanLiteral
* (true/false) and NullLiteral (null).
*/
scanIdentifier: function() {
var id = "";
var index = 0;
var type, char;
function isNonAsciiIdentifierStart(code) {
return nonAsciiIdentifierStartTable.indexOf(code) > -1;
}
function isNonAsciiIdentifierPart(code) {
return isNonAsciiIdentifierStart(code) || nonAsciiIdentifierPartTable.indexOf(code) > -1;
}
function isHexDigit(str) {
return (/^[0-9a-fA-F]$/).test(str);
}
var readUnicodeEscapeSequence = function() {
/*jshint validthis:true */
index += 1;
if (this.peek(index) !== "u") {
return null;
}
var ch1 = this.peek(index + 1);
var ch2 = this.peek(index + 2);
var ch3 = this.peek(index + 3);
var ch4 = this.peek(index + 4);
var code;
if (isHexDigit(ch1) && isHexDigit(ch2) && isHexDigit(ch3) && isHexDigit(ch4)) {
code = parseInt(ch1 + ch2 + ch3 + ch4, 16);
if (asciiIdentifierPartTable[code] || isNonAsciiIdentifierPart(code)) {
index += 5;
return "\\u" + ch1 + ch2 + ch3 + ch4;
}
return null;
}
return null;
}.bind(this);
var getIdentifierStart = function() {
/*jshint validthis:true */
var chr = this.peek(index);
var code = chr.charCodeAt(0);
if (code === 92) {
return readUnicodeEscapeSequence();
}
if (code < 128) {
if (asciiIdentifierStartTable[code]) {
index += 1;
return chr;
}
return null;
}
if (isNonAsciiIdentifierStart(code)) {
index += 1;
return chr;
}
return null;
}.bind(this);
var getIdentifierPart = function() {
/*jshint validthis:true */
var chr = this.peek(index);
var code = chr.charCodeAt(0);
if (code === 92) {
return readUnicodeEscapeSequence();
}
if (code < 128) {
if (asciiIdentifierPartTable[code]) {
index += 1;
return chr;
}
return null;
}
if (isNonAsciiIdentifierPart(code)) {
index += 1;
return chr;
}
return null;
}.bind(this);
function removeEscapeSequences(id) {
return id.replace(/\\u([0-9a-fA-F]{4})/g, function(m0, codepoint) {
return String.fromCharCode(parseInt(codepoint, 16));
});
}
char = getIdentifierStart();
if (char === null) {
return null;
}
id = char;
for (;;) {
char = getIdentifierPart();
if (char === null) {
break;
}
id += char;
}
switch (id) {
case "true":
case "false":
type = Token.BooleanLiteral;
break;
case "null":
type = Token.NullLiteral;
break;
default:
type = Token.Identifier;
}
return {
type: type,
value: removeEscapeSequences(id),
text: id,
tokenLength: id.length
};
},
/*
* Extract a numeric literal out of the next sequence of
* characters or return 'null' if its not possible. This method
* supports all numeric literals described in section 7.8.3
* of the EcmaScript 5 specification.
*
* This method's implementation was heavily influenced by the
* scanNumericLiteral function in the Esprima parser's source code.
*/
scanNumericLiteral: function() {
var index = 0;
var value = "";
var length = this.input.length;
var char = this.peek(index);
var bad;
var isAllowedDigit = isDecimalDigit;
var base = 10;
var isLegacy = false;
function isDecimalDigit(str) {
return (/^[0-9]$/).test(str);
}
function isOctalDigit(str) {
return (/^[0-7]$/).test(str);
}
function isBinaryDigit(str) {
return (/^[01]$/).test(str);
}
function isHexDigit(str) {
return (/^[0-9a-fA-F]$/).test(str);
}
function isIdentifierStart(ch) {
return (ch === "$") || (ch === "_") || (ch === "\\") ||
(ch >= "a" && ch <= "z") || (ch >= "A" && ch <= "Z");
}
// Numbers must start either with a decimal digit or a point.
if (char !== "." && !isDecimalDigit(char)) {
return null;
}
if (char !== ".") {
value = this.peek(index);
index += 1;
char = this.peek(index);
if (value === "0") {
// Base-16 numbers.
if (char === "x" || char === "X") {
isAllowedDigit = isHexDigit;
base = 16;
index += 1;
value += char;
}
// Base-8 numbers.
if (char === "o" || char === "O") {
isAllowedDigit = isOctalDigit;
base = 8;
if (!state.option.esnext) {
this.trigger("warning", {
code: "W119",
line: this.line,
character: this.char,
data: [ "Octal integer literal" ]
});
}
index += 1;
value += char;
}
// Base-2 numbers.
if (char === "b" || char === "B") {
isAllowedDigit = isBinaryDigit;
base = 2;
if (!state.option.esnext) {
this.trigger("warning", {
code: "W119",
line: this.line,
character: this.char,
data: [ "Binary integer literal" ]
});
}
index += 1;
value += char;
}
// Legacy base-8 numbers.
if (isOctalDigit(char)) {
isAllowedDigit = isOctalDigit;
base = 8;
isLegacy = true;
bad = false;
index += 1;
value += char;
}
// Decimal numbers that start with '0' such as '09' are illegal
// but we still parse them and return as malformed.
if (!isOctalDigit(char) && isDecimalDigit(char)) {
index += 1;
value += char;
}
}
while (index < length) {
char = this.peek(index);
if (isLegacy && isDecimalDigit(char)) {
// Numbers like '019' (note the 9) are not valid octals
// but we still parse them and mark as malformed.
bad = true;
} else if (!isAllowedDigit(char)) {
break;
}
value += char;
index += 1;
}
if (isAllowedDigit !== isDecimalDigit) {
if (!isLegacy && value.length <= 2) { // 0x
return {
type: Token.NumericLiteral,
value: value,
isMalformed: true
};
}
if (index < length) {
char = this.peek(index);
if (isIdentifierStart(char)) {
return null;
}
}
return {
type: Token.NumericLiteral,
value: value,
base: base,
isLegacy: isLegacy,
isMalformed: false
};
}
}
// Decimal digits.
if (char === ".") {
value += char;
index += 1;
while (index < length) {
char = this.peek(index);
if (!isDecimalDigit(char)) {
break;
}
value += char;
index += 1;
}
}
// Exponent part.
if (char === "e" || char === "E") {
value += char;
index += 1;
char = this.peek(index);
if (char === "+" || char === "-") {
value += this.peek(index);
index += 1;
}
char = this.peek(index);
if (isDecimalDigit(char)) {
value += char;
index += 1;
while (index < length) {
char = this.peek(index);
if (!isDecimalDigit(char)) {
break;
}
value += char;
index += 1;
}
} else {
return null;
}
}
if (index < length) {
char = this.peek(index);
if (isIdentifierStart(char)) {
return null;
}
}
return {
type: Token.NumericLiteral,
value: value,
base: base,
isMalformed: !isFinite(value)
};
},
// Assumes previously parsed character was \ (=== '\\') and was not skipped.
scanEscapeSequence: function(checks) {
var allowNewLine = false;
var jump = 1;
this.skip();
var char = this.peek();
switch (char) {
case "'":
this.triggerAsync("warning", {
code: "W114",
line: this.line,
character: this.char,
data: [ "\\'" ]
}, checks, function() {return state.jsonMode; });
break;
case "b":
char = "\\b";
break;
case "f":
char = "\\f";
break;
case "n":
char = "\\n";
break;
case "r":
char = "\\r";
break;
case "t":
char = "\\t";
break;
case "0":
char = "\\0";
// Octal literals fail in strict mode.
// Check if the number is between 00 and 07.
var n = parseInt(this.peek(1), 10);
this.triggerAsync("warning", {
code: "W115",
line: this.line,
character: this.char
}, checks,
function() { return n >= 0 && n <= 7 && state.directive["use strict"]; });
break;
case "u":
var hexCode = this.input.substr(1, 4);
var code = parseInt(hexCode, 16);
if (isNaN(code)) {
this.trigger("warning", {
code: "W052",
line: this.line,
character: this.char,
data: [ "u" + hexCode ]
});
}
char = String.fromCharCode(code);
jump = 5;
break;
case "v":
this.triggerAsync("warning", {
code: "W114",
line: this.line,
character: this.char,
data: [ "\\v" ]
}, checks, function() { return state.jsonMode; });
char = "\v";
break;
case "x":
var x = parseInt(this.input.substr(1, 2), 16);
this.triggerAsync("warning", {
code: "W114",
line: this.line,
character: this.char,
data: [ "\\x-" ]
}, checks, function() { return state.jsonMode; });
char = String.fromCharCode(x);
jump = 3;
break;
case "\\":
char = "\\\\";
break;
case "\"":
char = "\\\"";
break;
case "/":
break;
case "":
allowNewLine = true;
char = "";
break;
}
return { char: char, jump: jump, allowNewLine: allowNewLine };
},
/*
* Extract a template literal out of the next sequence of characters
* and/or lines or return 'null' if its not possible. Since template
* literals can span across multiple lines, this method has to move
* the char pointer.
*/
scanTemplateLiteral: function(checks) {
var tokenType;
var value = "";
var ch;
var startLine = this.line;
var startChar = this.char;
var depth = this.templateStarts.length;
if (!state.option.esnext) {
// Only lex template strings in ESNext mode.
return null;
} else if (this.peek() === "`") {
// Template must start with a backtick.
tokenType = Token.TemplateHead;
this.templateStarts.push({ line: this.line, char: this.char });
depth = this.templateStarts.length;
this.skip(1);
this.pushContext(Context.Template);
} else if (this.inContext(Context.Template) && this.peek() === "}") {
// If we're in a template context, and we have a '}', lex a TemplateMiddle.
tokenType = Token.TemplateMiddle;
} else {
// Go lex something else.
return null;
}
while (this.peek() !== "`") {
while ((ch = this.peek()) === "") {
value += "\n";
if (!this.nextLine()) {
// Unclosed template literal --- point to the starting "`"
var startPos = this.templateStarts.pop();
this.trigger("error", {
code: "E052",
line: startPos.line,
character: startPos.char
});
return {
type: tokenType,
value: value,
startLine: startLine,
startChar: startChar,
isUnclosed: true,
depth: depth,
context: this.popContext()
};
}
}
if (ch === '$' && this.peek(1) === '{') {
value += '${';
this.skip(2);
return {
type: tokenType,
value: value,
startLine: startLine,
startChar: startChar,
isUnclosed: false,
depth: depth,
context: this.currentContext()
};
} else if (ch === '\\') {
var escape = this.scanEscapeSequence(checks);
value += escape.char;
this.skip(escape.jump);
} else if (ch !== '`') {
// Otherwise, append the value and continue.
value += ch;
this.skip(1);
}
}
// Final value is either NoSubstTemplate or TemplateTail
tokenType = tokenType === Token.TemplateHead ? Token.NoSubstTemplate : Token.TemplateTail;
this.skip(1);
this.templateStarts.pop();
return {
type: tokenType,
value: value,
startLine: startLine,
startChar: startChar,
isUnclosed: false,
depth: depth,
context: this.popContext()
};
},
/*
* Extract a string out of the next sequence of characters and/or
* lines or return 'null' if its not possible. Since strings can
* span across multiple lines this method has to move the char
* pointer.
*
* This method recognizes pseudo-multiline JavaScript strings:
*
* var str = "hello\
* world";
*/
scanStringLiteral: function(checks) {
/*jshint loopfunc:true */
var quote = this.peek();
// String must start with a quote.
if (quote !== "\"" && quote !== "'") {
return null;
}
// In JSON strings must always use double quotes.
this.triggerAsync("warning", {
code: "W108",
line: this.line,
character: this.char // +1?
}, checks, function() { return state.jsonMode && quote !== "\""; });
var value = "";
var startLine = this.line;
var startChar = this.char;
var allowNewLine = false;
this.skip();
while (this.peek() !== quote) {
while (this.peek() === "") { // End Of Line
// If an EOL is not preceded by a backslash, show a warning
// and proceed like it was a legit multi-line string where
// author simply forgot to escape the newline symbol.
//
// Another approach is to implicitly close a string on EOL
// but it generates too many false positives.
if (!allowNewLine) {
this.trigger("warning", {
code: "W112",
line: this.line,
character: this.char
});
} else {
allowNewLine = false;
// Otherwise show a warning if multistr option was not set.
// For JSON, show warning no matter what.
this.triggerAsync("warning", {
code: "W043",
line: this.line,
character: this.char
}, checks, function() { return !state.option.multistr; });
this.triggerAsync("warning", {
code: "W042",
line: this.line,
character: this.char
}, checks, function() { return state.jsonMode && state.option.multistr; });
}
// If we get an EOF inside of an unclosed string, show an
// error and implicitly close it at the EOF point.
if (!this.nextLine()) {
this.trigger("error", {
code: "E029",
line: startLine,
character: startChar
});
return {
type: Token.StringLiteral,
value: value,
startLine: startLine,
startChar: startChar,
isUnclosed: true,
quote: quote
};
}
}
allowNewLine = false;
var char = this.peek();
var jump = 1; // A length of a jump, after we're done
// parsing this character.
if (char < " ") {
// Warn about a control character in a string.
this.trigger("warning", {
code: "W113",
line: this.line,
character: this.char,
data: [ "<non-printable>" ]
});
}
// Special treatment for some escaped characters.
if (char === "\\") {
var parsed = this.scanEscapeSequence(checks);
char = parsed.char;
jump = parsed.jump;
allowNewLine = parsed.allowNewLine;
}
value += char;
this.skip(jump);
}
this.skip();
return {
type: Token.StringLiteral,
value: value,
startLine: startLine,
startChar: startChar,
isUnclosed: false,
quote: quote
};
},
/*
* Extract a regular expression out of the next sequence of
* characters and/or lines or return 'null' if its not possible.
*
* This method is platform dependent: it accepts almost any
* regular expression values but then tries to compile and run
* them using system's RegExp object. This means that there are
* rare edge cases where one JavaScript engine complains about
* your regular expression while others don't.
*/
scanRegExp: function() {
var index = 0;
var length = this.input.length;
var char = this.peek();
var value = char;
var body = "";
var flags = [];
var malformed = false;
var isCharSet = false;
var terminated;
var scanUnexpectedChars = function() {
// Unexpected control character
if (char < " ") {
malformed = true;
this.trigger("warning", {
code: "W048",
line: this.line,
character: this.char
});
}
// Unexpected escaped character
if (char === "<") {
malformed = true;
this.trigger("warning", {
code: "W049",
line: this.line,
character: this.char,
data: [ char ]
});
}
}.bind(this);
// Regular expressions must start with '/'
if (!this.prereg || char !== "/") {
return null;
}
index += 1;
terminated = false;
// Try to get everything in between slashes. A couple of
// cases aside (see scanUnexpectedChars) we don't really
// care whether the resulting expression is valid or not.
// We will check that later using the RegExp object.
while (index < length) {
char = this.peek(index);
value += char;
body += char;
if (isCharSet) {
if (char === "]") {
if (this.peek(index - 1) !== "\\" || this.peek(index - 2) === "\\") {
isCharSet = false;
}
}
if (char === "\\") {
index += 1;
char = this.peek(index);
body += char;
value += char;
scanUnexpectedChars();
}
index += 1;
continue;
}
if (char === "\\") {
index += 1;
char = this.peek(index);
body += char;
value += char;
scanUnexpectedChars();
if (char === "/") {
index += 1;
continue;
}
if (char === "[") {
index += 1;
continue;
}
}
if (char === "[") {
isCharSet = true;
index += 1;
continue;
}
if (char === "/") {
body = body.substr(0, body.length - 1);
terminated = true;
index += 1;
break;
}
index += 1;
}
// A regular expression that was never closed is an
// error from which we cannot recover.
if (!terminated) {
this.trigger("error", {
code: "E015",
line: this.line,
character: this.from
});
return void this.trigger("fatal", {
line: this.line,
from: this.from
});
}
// Parse flags (if any).
while (index < length) {
char = this.peek(index);
if (!/[gim]/.test(char)) {
break;
}
flags.push(char);
value += char;
index += 1;
}
// Check regular expression for correctness.
try {
new RegExp(body, flags.join(""));
} catch (err) {
malformed = true;
this.trigger("error", {
code: "E016",
line: this.line,
character: this.char,
data: [ err.message ] // Platform dependent!
});
}
return {
type: Token.RegExp,
value: value,
flags: flags,
isMalformed: malformed
};
},
/*
* Scan for any occurrence of non-breaking spaces. Non-breaking spaces
* can be mistakenly typed on OS X with option-space. Non UTF-8 web
* pages with non-breaking pages produce syntax errors.
*/
scanNonBreakingSpaces: function() {
return state.option.nonbsp ?
this.input.search(/(\u00A0)/) : -1;
},
/*
* Scan for characters that get silently deleted by one or more browsers.
*/
scanUnsafeChars: function() {
return this.input.search(reg.unsafeChars);
},
/*
* Produce the next raw token or return 'null' if no tokens can be matched.
* This method skips over all space characters.
*/
next: function(checks) {
this.from = this.char;
// Move to the next non-space character.
var start;
if (/\s/.test(this.peek())) {
start = this.char;
while (/\s/.test(this.peek())) {
this.from += 1;
this.skip();
}
}
// Methods that work with multi-line structures and move the
// character pointer.
var match = this.scanComments() ||
this.scanStringLiteral(checks) ||
this.scanTemplateLiteral(checks);
if (match) {
return match;
}
// Methods that don't move the character pointer.
match =
this.scanRegExp() ||
this.scanPunctuator() ||
this.scanKeyword() ||
this.scanIdentifier() ||
this.scanNumericLiteral();
if (match) {
this.skip(match.tokenLength || match.value.length);
return match;
}
// No token could be matched, give up.
return null;
},
/*
* Switch to the next line and reset all char pointers. Once
* switched, this method also checks for other minor warnings.
*/
nextLine: function() {
var char;
if (this.line >= this.getLines().length) {
return false;
}
this.input = this.getLines()[this.line];
this.line += 1;
this.char = 1;
this.from = 1;
var inputTrimmed = this.input.trim();
var startsWith = function() {
return _.some(arguments, function(prefix) {
return inputTrimmed.indexOf(prefix) === 0;
});
};
var endsWith = function() {
return _.some(arguments, function(suffix) {
return inputTrimmed.indexOf(suffix, inputTrimmed.length - suffix.length) !== -1;
});
};
// If we are ignoring linter errors, replace the input with empty string
// if it doesn't already at least start or end a multi-line comment
if (state.ignoreLinterErrors === true) {
if (!startsWith("/*", "//") && !(this.inComment && endsWith("*/"))) {
this.input = "";
}
}
char = this.scanNonBreakingSpaces();
if (char >= 0) {
this.trigger("warning", { code: "W125", line: this.line, character: char + 1 });
}
this.input = this.input.replace(/\t/g, state.tab);
char = this.scanUnsafeChars();
if (char >= 0) {
this.trigger("warning", { code: "W100", line: this.line, character: char });
}
// If there is a limit on line length, warn when lines get too
// long.
if (state.option.maxlen && state.option.maxlen < this.input.length) {
var inComment = this.inComment ||
startsWith.call(inputTrimmed, "//") ||
startsWith.call(inputTrimmed, "/*");
var shouldTriggerError = !inComment || !reg.maxlenException.test(inputTrimmed);
if (shouldTriggerError) {
this.trigger("warning", { code: "W101", line: this.line, character: this.input.length });
}
}
return true;
},
/*
* This is simply a synonym for nextLine() method with a friendlier
* public name.
*/
start: function() {
this.nextLine();
},
/*
* Produce the next token. This function is called by advance() to get
* the next token. It returns a token in a JSLint-compatible format.
*/
token: function() {
/*jshint loopfunc:true */
var checks = asyncTrigger();
var token;
function isReserved(token, isProperty) {
if (!token.reserved) {
return false;
}
var meta = token.meta;
if (meta && meta.isFutureReservedWord && state.option.inES5()) {
// ES3 FutureReservedWord in an ES5 environment.
if (!meta.es5) {
return false;
}
// Some ES5 FutureReservedWord identifiers are active only
// within a strict mode environment.
if (meta.strictOnly) {
if (!state.option.strict && !state.directive["use strict"]) {
return false;
}
}
if (isProperty) {
return false;
}
}
return true;
}
// Produce a token object.
var create = function(type, value, isProperty, token) {
/*jshint validthis:true */
var obj;
if (type !== "(endline)" && type !== "(end)") {
this.prereg = false;
}
if (type === "(punctuator)") {
switch (value) {
case ".":
case ")":
case "~":
case "#":
case "]":
case "++":
case "--":
this.prereg = false;
break;
default:
this.prereg = true;
}
obj = Object.create(state.syntax[value] || state.syntax["(error)"]);
}
if (type === "(identifier)") {
if (value === "return" || value === "case" || value === "typeof") {
this.prereg = true;
}
if (_.has(state.syntax, value)) {
obj = Object.create(state.syntax[value] || state.syntax["(error)"]);
// If this can't be a reserved keyword, reset the object.
if (!isReserved(obj, isProperty && type === "(identifier)")) {
obj = null;
}
}
}
if (!obj) {
obj = Object.create(state.syntax[type]);
}
obj.identifier = (type === "(identifier)");
obj.type = obj.type || type;
obj.value = value;
obj.line = this.line;
obj.character = this.char;
obj.from = this.from;
if (obj.identifier && token) obj.raw_text = token.text || token.value;
if (token && token.startLine && token.startLine !== this.line) {
obj.startLine = token.startLine;
}
if (token && token.context) {
// Context of current token
obj.context = token.context;
}
if (token && token.depth) {
// Nested template depth
obj.depth = token.depth;
}
if (token && token.isUnclosed) {
// Mark token as unclosed string / template literal
obj.isUnclosed = token.isUnclosed;
}
if (isProperty && obj.identifier) {
obj.isProperty = isProperty;
}
obj.check = checks.check;
return obj;
}.bind(this);
for (;;) {
if (!this.input.length) {
return create(this.nextLine() ? "(endline)" : "(end)", "");
}
token = this.next(checks);
if (!token) {
if (this.input.length) {
// Unexpected character.
this.trigger("error", {
code: "E024",
line: this.line,
character: this.char,
data: [ this.peek() ]
});
this.input = "";
}
continue;
}
switch (token.type) {
case Token.StringLiteral:
this.triggerAsync("String", {
line: this.line,
char: this.char,
from: this.from,
startLine: token.startLine,
startChar: token.startChar,
value: token.value,
quote: token.quote
}, checks, function() { return true; });
return create("(string)", token.value, null, token);
case Token.TemplateHead:
this.trigger("TemplateHead", {
line: this.line,
char: this.char,
from: this.from,
startLine: token.startLine,
startChar: token.startChar,
value: token.value
});
return create("(template)", token.value, null, token);
case Token.TemplateMiddle:
this.trigger("TemplateMiddle", {
line: this.line,
char: this.char,
from: this.from,
startLine: token.startLine,
startChar: token.startChar,
value: token.value
});
return create("(template middle)", token.value, null, token);
case Token.TemplateTail:
this.trigger("TemplateTail", {
line: this.line,
char: this.char,
from: this.from,
startLine: token.startLine,
startChar: token.startChar,
value: token.value
});
return create("(template tail)", token.value, null, token);
case Token.NoSubstTemplate:
this.trigger("NoSubstTemplate", {
line: this.line,
char: this.char,
from: this.from,
startLine: token.startLine,
startChar: token.startChar,
value: token.value
});
return create("(no subst template)", token.value, null, token);
case Token.Identifier:
this.trigger("Identifier", {
line: this.line,
char: this.char,
from: this.form,
name: token.value,
raw_name: token.text,
isProperty: state.tokens.curr.id === "."
});
/* falls through */
case Token.Keyword:
case Token.NullLiteral:
case Token.BooleanLiteral:
return create("(identifier)", token.value, state.tokens.curr.id === ".", token);
case Token.NumericLiteral:
if (token.isMalformed) {
this.trigger("warning", {
code: "W045",
line: this.line,
character: this.char,
data: [ token.value ]
});
}
this.triggerAsync("warning", {
code: "W114",
line: this.line,
character: this.char,
data: [ "0x-" ]
}, checks, function() { return token.base === 16 && state.jsonMode; });
this.triggerAsync("warning", {
code: "W115",
line: this.line,
character: this.char
}, checks, function() {
return state.directive["use strict"] && token.base === 8 && token.isLegacy;
});
this.trigger("Number", {
line: this.line,
char: this.char,
from: this.from,
value: token.value,
base: token.base,
isMalformed: token.malformed
});
return create("(number)", token.value);
case Token.RegExp:
return create("(regexp)", token.value);
case Token.Comment:
state.tokens.curr.comment = true;
if (token.isSpecial) {
return {
id: '(comment)',
value: token.value,
body: token.body,
type: token.commentType,
isSpecial: token.isSpecial,
line: this.line,
character: this.char,
from: this.from
};
}
break;
case "":
break;
default:
return create("(punctuator)", token.value);
}
}
}
};
exports.Lexer = Lexer;
exports.Context = Context;
},{"../data/ascii-identifier-data.js":1,"../data/non-ascii-identifier-part-only.js":2,"../data/non-ascii-identifier-start.js":3,"./reg.js":17,"./state.js":18,"events":5,"underscore":12}],14:[function(require,module,exports){
"use strict";
var _ = require("underscore");
var errors = {
// JSHint options
E001: "Bad option: '{a}'.",
E002: "Bad option value.",
// JSHint input
E003: "Expected a JSON value.",
E004: "Input is neither a string nor an array of strings.",
E005: "Input is empty.",
E006: "Unexpected early end of program.",
// Strict mode
E007: "Missing \"use strict\" statement.",
E008: "Strict violation.",
E009: "Option 'validthis' can't be used in a global scope.",
E010: "'with' is not allowed in strict mode.",
// Constants
E011: "const '{a}' has already been declared.",
E012: "const '{a}' is initialized to 'undefined'.",
E013: "Attempting to override '{a}' which is a constant.",
// Regular expressions
E014: "A regular expression literal can be confused with '/='.",
E015: "Unclosed regular expression.",
E016: "Invalid regular expression.",
// Tokens
E017: "Unclosed comment.",
E018: "Unbegun comment.",
E019: "Unmatched '{a}'.",
E020: "Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.",
E021: "Expected '{a}' and instead saw '{b}'.",
E022: "Line breaking error '{a}'.",
E023: "Missing '{a}'.",
E024: "Unexpected '{a}'.",
E025: "Missing ':' on a case clause.",
E026: "Missing '}' to match '{' from line {a}.",
E027: "Missing ']' to match '[' from line {a}.",
E028: "Illegal comma.",
E029: "Unclosed string.",
// Everything else
E030: "Expected an identifier and instead saw '{a}'.",
E031: "Bad assignment.", // FIXME: Rephrase
E032: "Expected a small integer or 'false' and instead saw '{a}'.",
E033: "Expected an operator and instead saw '{a}'.",
E034: "get/set are ES5 features.",
E035: "Missing property name.",
E036: "Expected to see a statement and instead saw a block.",
E037: null,
E038: null,
E039: "Function declarations are not invocable. Wrap the whole function invocation in parens.",
E040: "Each value should have its own case label.",
E041: "Unrecoverable syntax error.",
E042: "Stopping.",
E043: "Too many errors.",
E044: null,
E045: "Invalid for each loop.",
E046: "A yield statement shall be within a generator function (with syntax: `function*`)",
E047: null, // Vacant
E048: "Let declaration not directly within block.",
E049: "A {a} cannot be named '{b}'.",
E050: "Mozilla requires the yield expression to be parenthesized here.",
E051: "Regular parameters cannot come after default parameters.",
E052: "Unclosed template literal.",
E053: "Export declaration must be in global scope.",
E054: "Class properties must be methods. Expected '(' but instead saw '{a}'."
};
var warnings = {
W001: "'hasOwnProperty' is a really bad name.",
W002: "Value of '{a}' may be overwritten in IE 8 and earlier.",
W003: "'{a}' was used before it was defined.",
W004: "'{a}' is already defined.",
W005: "A dot following a number can be confused with a decimal point.",
W006: "Confusing minuses.",
W007: "Confusing plusses.",
W008: "A leading decimal point can be confused with a dot: '{a}'.",
W009: "The array literal notation [] is preferable.",
W010: "The object literal notation {} is preferable.",
W011: null,
W012: null,
W013: null,
W014: "Bad line breaking before '{a}'.",
W015: null,
W016: "Unexpected use of '{a}'.",
W017: "Bad operand.",
W018: "Confusing use of '{a}'.",
W019: "Use the isNaN function to compare with NaN.",
W020: "Read only.",
W021: "'{a}' is a function.",
W022: "Do not assign to the exception parameter.",
W023: "Expected an identifier in an assignment and instead saw a function invocation.",
W024: "Expected an identifier and instead saw '{a}' (a reserved word).",
W025: "Missing name in function declaration.",
W026: "Inner functions should be listed at the top of the outer function.",
W027: "Unreachable '{a}' after '{b}'.",
W028: "Label '{a}' on {b} statement.",
W030: "Expected an assignment or function call and instead saw an expression.",
W031: "Do not use 'new' for side effects.",
W032: "Unnecessary semicolon.",
W033: "Missing semicolon.",
W034: "Unnecessary directive \"{a}\".",
W035: "Empty block.",
W036: "Unexpected /*member '{a}'.",
W037: "'{a}' is a statement label.",
W038: "'{a}' used out of scope.",
W039: "'{a}' is not allowed.",
W040: "Possible strict violation.",
W041: "Use '{a}' to compare with '{b}'.",
W042: "Avoid EOL escaping.",
W043: "Bad escaping of EOL. Use option multistr if needed.",
W044: "Bad or unnecessary escaping.", /* TODO(caitp): remove W044 */
W045: "Bad number '{a}'.",
W046: "Don't use extra leading zeros '{a}'.",
W047: "A trailing decimal point can be confused with a dot: '{a}'.",
W048: "Unexpected control character in regular expression.",
W049: "Unexpected escaped character '{a}' in regular expression.",
W050: "JavaScript URL.",
W051: "Variables should not be deleted.",
W052: "Unexpected '{a}'.",
W053: "Do not use {a} as a constructor.",
W054: "The Function constructor is a form of eval.",
W055: "A constructor name should start with an uppercase letter.",
W056: "Bad constructor.",
W057: "Weird construction. Is 'new' necessary?",
W058: "Missing '()' invoking a constructor.",
W059: "Avoid arguments.{a}.",
W060: "document.write can be a form of eval.",
W061: "eval can be harmful.",
W062: "Wrap an immediate function invocation in parens " +
"to assist the reader in understanding that the expression " +
"is the result of a function, and not the function itself.",
W063: "Math is not a function.",
W064: "Missing 'new' prefix when invoking a constructor.",
W065: "Missing radix parameter.",
W066: "Implied eval. Consider passing a function instead of a string.",
W067: "Bad invocation.",
W068: "Wrapping non-IIFE function literals in parens is unnecessary.",
W069: "['{a}'] is better written in dot notation.",
W070: "Extra comma. (it breaks older versions of IE)",
W071: "This function has too many statements. ({a})",
W072: "This function has too many parameters. ({a})",
W073: "Blocks are nested too deeply. ({a})",
W074: "This function's cyclomatic complexity is too high. ({a})",
W075: "Duplicate {a} '{b}'.",
W076: "Unexpected parameter '{a}' in get {b} function.",
W077: "Expected a single parameter in set {a} function.",
W078: "Setter is defined without getter.",
W079: "Redefinition of '{a}'.",
W080: "It's not necessary to initialize '{a}' to 'undefined'.",
W081: null,
W082: "Function declarations should not be placed in blocks. " +
"Use a function expression or move the statement to the top of " +
"the outer function.",
W083: "Don't make functions within a loop.",
W084: "Expected a conditional expression and instead saw an assignment.",
W085: "Don't use 'with'.",
W086: "Expected a 'break' statement before '{a}'.",
W087: "Forgotten 'debugger' statement?",
W088: "Creating global 'for' variable. Should be 'for (var {a} ...'.",
W089: "The body of a for in should be wrapped in an if statement to filter " +
"unwanted properties from the prototype.",
W090: "'{a}' is not a statement label.",
W091: "'{a}' is out of scope.",
W093: "Did you mean to return a conditional instead of an assignment?",
W094: "Unexpected comma.",
W095: "Expected a string and instead saw {a}.",
W096: "The '{a}' key may produce unexpected results.",
W097: "Use the function form of \"use strict\".",
W098: "'{a}' is defined but never used.",
W099: null,
W100: "This character may get silently deleted by one or more browsers.",
W101: "Line is too long.",
W102: null,
W103: "The '{a}' property is deprecated.",
W104: "'{a}' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).",
W105: "Unexpected {a} in '{b}'.",
W106: "Identifier '{a}' is not in camel case.",
W107: "Script URL.",
W108: "Strings must use doublequote.",
W109: "Strings must use singlequote.",
W110: "Mixed double and single quotes.",
W112: "Unclosed string.",
W113: "Control character in string: {a}.",
W114: "Avoid {a}.",
W115: "Octal literals are not allowed in strict mode.",
W116: "Expected '{a}' and instead saw '{b}'.",
W117: "'{a}' is not defined.",
W118: "'{a}' is only available in Mozilla JavaScript extensions (use moz option).",
W119: "'{a}' is only available in ES6 (use esnext option).",
W120: "You might be leaking a variable ({a}) here.",
W121: "Extending prototype of native object: '{a}'.",
W122: "Invalid typeof value '{a}'",
W123: "'{a}' is already defined in outer scope.",
W124: "A generator function shall contain a yield statement.",
W125: "This line contains non-breaking spaces: http://jshint.com/doc/options/#nonbsp",
W126: "Unnecessary grouping operator.",
W127: "Unexpected use of a comma operator.",
W128: "Empty array elements require elision=true.",
W129: "'{a}' is defined in a future version of JavaScript. Use a " +
"different variable name to avoid migration issues.",
W130: "Trailing ',' is not valid in array destructuring assignment."
};
var info = {
I001: "Comma warnings can be turned off with 'laxcomma'.",
I002: null,
I003: "ES5 option is now set per default"
};
exports.errors = {};
exports.warnings = {};
exports.info = {};
_.each(errors, function(desc, code) {
exports.errors[code] = { code: code, desc: desc };
});
_.each(warnings, function(desc, code) {
exports.warnings[code] = { code: code, desc: desc };
});
_.each(info, function(desc, code) {
exports.info[code] = { code: code, desc: desc };
});
},{"underscore":12}],15:[function(require,module,exports){
"use strict";
function NameStack() {
this._stack = [];
}
Object.defineProperty(NameStack.prototype, "length", {
get: function() {
return this._stack.length;
}
});
/**
* Create a new entry in the stack. Useful for tracking names across
* expressions.
*/
NameStack.prototype.push = function() {
this._stack.push(null);
};
/**
* Discard the most recently-created name on the stack.
*/
NameStack.prototype.pop = function() {
this._stack.pop();
};
/**
* Update the most recent name on the top of the stack.
*
* @param {object} token The token to consider as the source for the most
* recent name.
*/
NameStack.prototype.set = function(token) {
this._stack[this.length - 1] = token;
};
/**
* Generate a string representation of the most recent name.
*
* @returns {string}
*/
NameStack.prototype.infer = function() {
var nameToken = this._stack[this.length - 1];
var prefix = "";
var type;
// During expected operation, the topmost entry on the stack will only
// reflect the current function's name when the function is declared without
// the `function` keyword (i.e. for in-line accessor methods). In other
// cases, the `function` expression itself will introduce an empty entry on
// the top of the stack, and this should be ignored.
if (!nameToken || nameToken.type === "class") {
nameToken = this._stack[this.length - 2];
}
if (!nameToken) {
return "(empty)";
}
type = nameToken.type;
if (type !== "(string)" && type !== "(number)" && type !== "(identifier)" && type !== "default") {
return "(expression)";
}
if (nameToken.accessorType) {
prefix = nameToken.accessorType + " ";
}
return prefix + nameToken.value;
};
module.exports = NameStack;
},{}],16:[function(require,module,exports){
"use strict";
// These are the JSHint boolean options.
exports.bool = {
enforcing: {
/**
* This option prohibits the use of bitwise operators such as `^` (XOR),
* `|` (OR) and others. Bitwise operators are very rare in JavaScript
* programs and quite often `&` is simply a mistyped `&&`.
*/
bitwise : true,
/**
*
* This options prohibits overwriting prototypes of native objects such as
* `Array`, `Date` and so on.
*
* // jshint freeze:true
* Array.prototype.count = function (value) { return 4; };
* // -> Warning: Extending prototype of native object: 'Array'.
*/
freeze : true,
/**
* This option allows you to force all variable names to use either
* camelCase style or UPPER_CASE with underscores.
*
* @deprecated JSHint is limiting its scope to issues of code correctness.
* If you would like to enforce rules relating to code style,
* check out [the JSCS
* project](https://github.com/jscs-dev/node-jscs).
*/
camelcase : true,
/**
* This option requires you to always put curly braces around blocks in
* loops and conditionals. JavaScript allows you to omit curly braces when
* the block consists of only one statement, for example:
*
* while (day)
* shuffle();
*
* However, in some circumstances, it can lead to bugs (you'd think that
* `sleep()` is a part of the loop while in reality it is not):
*
* while (day)
* shuffle();
* sleep();
*/
curly : true,
/**
* This options prohibits the use of `==` and `!=` in favor of `===` and
* `!==`. The former try to coerce values before comparing them which can
* lead to some unexpected results. The latter don't do any coercion so
* they are generally safer. If you would like to learn more about type
* coercion in JavaScript, we recommend [Truth, Equality and
* JavaScript](http://javascriptweblog.wordpress.com/2011/02/07/truth-equality-and-javascript/)
* by Angus Croll.
*/
eqeqeq : true,
/**
* This option enables warnings about the use of identifiers which are
* defined in future versions of JavaScript. Although overwriting them has
* no effect in contexts where they are not implemented, this practice can
* cause issues when migrating codebases to newer versions of the language.
*/
futurehostile: true,
/**
* This option suppresses warnings about invalid `typeof` operator values.
* This operator has only [a limited set of possible return
* values](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof).
* By default, JSHint warns when you compare its result with an invalid
* value which often can be a typo.
*
* // 'fuction' instead of 'function'
* if (typeof a == "fuction") { // Invalid typeof value 'fuction'
* // ...
* }
*
* Do not use this option unless you're absolutely sure you don't want
* these checks.
*/
notypeof : true,
/**
* This option tells JSHint that your code needs to adhere to ECMAScript 3
* specification. Use this option if you need your program to be executable
* in older browsers—such as Internet Explorer 6/7/8/9—and other legacy
* JavaScript environments.
*/
es3 : true,
/**
* This option enables syntax first defined in [the ECMAScript 5.1
* specification](http://es5.github.io/). This includes allowing reserved
* keywords as object properties.
*/
es5 : true,
/**
* This option requires all `for in` loops to filter object's items. The
* for in statement allows for looping through the names of all of the
* properties of an object including those inherited through the prototype
* chain. This behavior can lead to unexpected items in your object so it
* is generally safer to always filter inherited properties out as shown in
* the example:
*
* for (key in obj) {
* if (obj.hasOwnProperty(key)) {
* // We are sure that obj[key] belongs to the object and was not inherited.
* }
* }
*
* For more in-depth understanding of `for in` loops in JavaScript, read
* [Exploring JavaScript for-in
* loops](http://javascriptweblog.wordpress.com/2011/01/04/exploring-javascript-for-in-loops/)
* by Angus Croll.
*/
forin : true,
/**
* This option suppresses warnings about declaring variables inside of
* control
* structures while accessing them later from the outside. Even though
* JavaScript has only two real scopes—global and function—such practice
* leads to confusion among people new to the language and hard-to-debug
* bugs. This is why, by default, JSHint warns about variables that are
* used outside of their intended scope.
*
* function test() {
* if (true) {
* var x = 0;
* }
*
* x += 1; // Default: 'x' used out of scope.
* // No warning when funcscope:true
* }
*/
funcscope : true,
/**
* This option suppresses warnings about the use of global strict mode.
* Global strict mode can break third-party widgets so it is not
* recommended.
*
* For more info about strict mode see the `strict` option.
*/
globalstrict: true,
/**
* This option prohibits the use of immediate function invocations without
* wrapping them in parentheses. Wrapping parentheses assists readers of
* your code in understanding that the expression is the result of a
* function, and not the function itself.
*
* @deprecated JSHint is limiting its scope to issues of code correctness.
* If you would like to enforce rules relating to code style,
* check out [the JSCS
* project](https://github.com/jscs-dev/node-jscs).
*/
immed : true,
/**
* This option suppresses warnings about the `__iterator__` property. This
* property is not supported by all browsers so use it carefully.
*/
iterator : true,
/**
* This option requires you to capitalize names of constructor functions.
* Capitalizing functions that are intended to be used with `new` operator
* is just a convention that helps programmers to visually distinguish
* constructor functions from other types of functions to help spot
* mistakes when using `this`.
*
* Not doing so won't break your code in any browsers or environments but
* it will be a bit harder to figure out—by reading the code—if the
* function was supposed to be used with or without new. And this is
* important because when the function that was intended to be used with
* `new` is used without it, `this` will point to the global object instead
* of a new object.
*
* @deprecated JSHint is limiting its scope to issues of code correctness.
* If you would like to enforce rules relating to code style,
* check out [the JSCS
* project](https://github.com/jscs-dev/node-jscs).
*/
newcap : true,
/**
* This option prohibits the use of `arguments.caller` and
* `arguments.callee`. Both `.caller` and `.callee` make quite a few
* optimizations impossible so they were deprecated in future versions of
* JavaScript. In fact, ECMAScript 5 forbids the use of `arguments.callee`
* in strict mode.
*/
noarg : true,
/**
* This option prohibits the use of the comma operator. When misused, the
* comma operator can obscure the value of a statement and promote
* incorrect code.
*/
nocomma : true,
/**
* This option warns when you have an empty block in your code. JSLint was
* originally warning for all empty blocks and we simply made it optional.
* There were no studies reporting that empty blocks in JavaScript break
* your code in any way.
*
* @deprecated JSHint is limiting its scope to issues of code correctness.
* If you would like to enforce rules relating to code style,
* check out [the JSCS
* project](https://github.com/jscs-dev/node-jscs).
*/
noempty : true,
/**
* This option warns about "non-breaking whitespace" characters. These
* characters can be entered with option-space on Mac computers and have a
* potential of breaking non-UTF8 web pages.
*/
nonbsp : true,
/**
* This option prohibits the use of constructor functions for side-effects.
* Some people like to call constructor functions without assigning its
* result to any variable:
*
* new MyConstructor();
*
* There is no advantage in this approach over simply calling
* `MyConstructor` since the object that the operator `new` creates isn't
* used anywhere so you should generally avoid constructors like this one.
*/
nonew : true,
/**
* This option prohibits the use of explicitly undeclared variables. This
* option is very useful for spotting leaking and mistyped variables.
*
* // jshint undef:true
*
* function test() {
* var myVar = 'Hello, World';
* console.log(myvar); // Oops, typoed here. JSHint with undef will complain
* }
*
* If your variable is defined in another file, you can use the `global`
* directive to tell JSHint about it.
*/
undef : true,
/**
* This option prohibits the use of the grouping operator when it is not
* strictly required. Such usage commonly reflects a misunderstanding of
* unary operators, for example:
*
* // jshint singleGroups: true
*
* delete(obj.attr); // Warning: Unnecessary grouping operator.
*/
singleGroups: false,
/**
* This option is a short hand for the most strict JSHint configuration. It
* enables all enforcing options and disables all relaxing options.
*
* @deprecated The option automatically opts users in to new features which
* can lead to unexpected warnings/errors in when upgrading
* between minor versions of JSHint.
*/
enforceall : false
},
relaxing: {
/**
* This option suppresses warnings about missing semicolons. There is a lot
* of FUD about semicolon spread by quite a few people in the community.
* The common myths are that semicolons are required all the time (they are
* not) and that they are unreliable. JavaScript has rules about semicolons
* which are followed by *all* browsers so it is up to you to decide
* whether you should or should not use semicolons in your code.
*
* For more information about semicolons in JavaScript read [An Open Letter
* to JavaScript Leaders Regarding
* Semicolons](http://blog.izs.me/post/2353458699/an-open-letter-to-javascript-leaders-regarding)
* by Isaac Schlueter and [JavaScript Semicolon
* Insertion](http://inimino.org/~inimino/blog/javascript_semicolons).
*/
asi : true,
/**
* This option suppresses warnings about multi-line strings. Multi-line
* strings can be dangerous in JavaScript because all hell breaks loose if
* you accidentally put a whitespace in between the escape character (`\`)
* and a new line.
*
* Note that even though this option allows correct multi-line strings, it
* still warns about multi-line strings without escape characters or with
* anything in between the escape character and a whitespace.
*
* // jshint multistr:true
*
* var text = "Hello\
* World"; // All good.
*
* text = "Hello
* World"; // Warning, no escape character.
*
* text = "Hello\
* World"; // Warning, there is a space after \
*
* @deprecated JSHint is limiting its scope to issues of code correctness.
* If you would like to enforce rules relating to code style,
* check out [the JSCS
* project](https://github.com/jscs-dev/node-jscs).
*/
multistr : true,
/**
* This option suppresses warnings about the `debugger` statements in your
* code.
*/
debug : true,
/**
* This option suppresses warnings about the use of assignments in cases
* where comparisons are expected. More often than not, code like `if (a =
* 10) {}` is a typo. However, it can be useful in cases like this one:
*
* for (var i = 0, person; person = people[i]; i++) {}
*
* You can silence this error on a per-use basis by surrounding the assignment
* with parenthesis, such as:
*
* for (var i = 0, person; (person = people[i]); i++) {}
*/
boss : true,
/**
* This option defines globals available when your core is running inside
* of the PhantomJS runtime environment. [PhantomJS](http://phantomjs.org/)
* is a headless WebKit scriptable with a JavaScript API. It has fast and
* native support for various web standards: DOM handling, CSS selector,
* JSON, Canvas, and SVG.
*/
phantom : true,
/**
* This option suppresses warnings about the use of `eval`. The use of
* `eval` is discouraged because it can make your code vulnerable to
* various injection attacks and it makes it hard for JavaScript
* interpreter to do certain optimizations.
*/
evil : true,
/**
* This option prohibits the use of unary increment and decrement
* operators. Some people think that `++` and `--` reduces the quality of
* their coding styles and there are programming languages—such as
* Python—that go completely without these operators.
*/
plusplus : true,
/**
* This option suppresses warnings about the `__proto__` property.
*/
proto : true,
/**
* This option suppresses warnings about the use of script-targeted
* URLs—such as `javascript:...`.
*/
scripturl : true,
/**
* This option requires all functions to run in ECMAScript 5's strict mode.
* [Strict mode](https://developer.mozilla.org/en/JavaScript/Strict_mode)
* is a way to opt in to a restricted variant of JavaScript. Strict mode
* eliminates some JavaScript pitfalls that didn't cause errors by changing
* them to produce errors. It also fixes mistakes that made it difficult
* for the JavaScript engines to perform certain optimizations.
*
* *Note:* This option enables strict mode for function scope only. It
* *prohibits* the global scoped strict mode because it might break
* third-party widgets on your page. If you really want to use global
* strict mode, see the *globalstrict* option.
*/
strict : true,
/**
* This option suppresses warnings about using `[]` notation when it can be
* expressed in dot notation: `person['name']` vs. `person.name`.
*
* @deprecated JSHint is limiting its scope to issues of code correctness.
* If you would like to enforce rules relating to code style,
* check out [the JSCS
* project](https://github.com/jscs-dev/node-jscs).
*/
sub : true,
/**
* This option suppresses warnings about "weird" constructions like
* `new function () { ... }` and `new Object;`. Such constructions are
* sometimes used to produce singletons in JavaScript:
*
* var singleton = new function() {
* var privateVar;
*
* this.publicMethod = function () {}
* this.publicMethod2 = function () {}
* };
*/
supernew : true,
/**
* This option suppresses most of the warnings about possibly unsafe line
* breakings in your code. It doesn't suppress warnings about comma-first
* coding style. To suppress those you have to use `laxcomma` (see below).
*
* @deprecated JSHint is limiting its scope to issues of code correctness.
* If you would like to enforce rules relating to code style,
* check out [the JSCS
* project](https://github.com/jscs-dev/node-jscs).
*/
laxbreak : true,
/**
* This option suppresses warnings about comma-first coding style:
*
* var obj = {
* name: 'Anton'
* , handle: 'valueof'
* , role: 'SW Engineer'
* };
*
* @deprecated JSHint is limiting its scope to issues of code correctness.
* If you would like to enforce rules relating to code style,
* check out [the JSCS
* project](https://github.com/jscs-dev/node-jscs).
*/
laxcomma : true,
/**
* This option suppresses warnings about possible strict violations when
* the code is running in strict mode and you use `this` in a
* non-constructor function. You should use this option—in a function scope
* only—when you are positive that your use of `this` is valid in the
* strict mode (for example, if you call your function using
* `Function.call`).
*
* **Note:** This option can be used only inside of a function scope.
* JSHint will fail with an error if you will try to set this option
* globally.
*/
validthis : true,
/**
* This option suppresses warnings about the use of the `with` statement.
* The semantics of the `with` statement can cause confusion among
* developers and accidental definition of global variables.
*
* More info:
*
* * [with Statement Considered
* Harmful](http://yuiblog.com/blog/2006/04/11/with-statement-considered-harmful/)
*/
withstmt : true,
/**
* This options tells JSHint that your code uses Mozilla JavaScript
* extensions. Unless you develop specifically for the Firefox web browser
* you don't need this option.
*
* More info:
*
* * [New in JavaScript
* 1.7](https://developer.mozilla.org/en-US/docs/JavaScript/New_in_JavaScript/1.7)
*/
moz : true,
/**
* This option suppresses warnings about generator functions with no
* `yield` statement in them.
*/
noyield : true,
/**
* This option suppresses warnings about `== null` comparisons. Such
* comparisons are often useful when you want to check if a variable is
* `null` or `undefined`.
*/
eqnull : true,
/**
* This option suppresses warnings about missing semicolons, but only when
* the semicolon is omitted for the last statement in a one-line block:
*
* var name = (function() { return 'Anton' }());
*
* This is a very niche use case that is useful only when you use automatic
* JavaScript code generators.
*/
lastsemic : true,
/**
* This option suppresses warnings about functions inside of loops.
* Defining functions inside of loops can lead to bugs such as this one:
*
* var nums = [];
*
* for (var i = 0; i < 10; i++) {
* nums[i] = function (j) {
* return i + j;
* };
* }
*
* nums[0](2); // Prints 12 instead of 2
*
* To fix the code above you need to copy the value of `i`:
*
* var nums = [];
*
* for (var i = 0; i < 10; i++) {
* (function (i) {
* nums[i] = function (j) {
* return i + j;
* };
* }(i));
* }
*/
loopfunc : true,
/**
* This option suppresses warnings about the use of expressions where
* normally you would expect to see assignments or function calls. Most of
* the time, such code is a typo. However, it is not forbidden by the spec
* and that's why this warning is optional.
*/
expr : true,
/**
* This option tells JSHint that your code uses ECMAScript 6 specific
* syntax. Note that these features are not finalized yet and not all
* browsers implement them.
*
* More info:
*
* * [Draft Specification for ES.next (ECMA-262 Ed.
* 6)](http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts)
*/
esnext : true,
/**
* This option tells JSHint that your code uses ES3 array elision elements,
* or empty elements (for example, `[1, , , 4, , , 7]`).
*/
elision : true,
},
// Third party globals
environments: {
/**
* This option defines globals exposed by the
* [MooTools](http://mootools.net/) JavaScript framework.
*/
mootools : true,
/**
* This option defines globals exposed by
* [CouchDB](http://couchdb.apache.org/). CouchDB is a document-oriented
* database that can be queried and indexed in a MapReduce fashion using
* JavaScript.
*/
couch : true,
/**
* This option defines globals exposed by [the Jasmine unit testing
* framework](https://jasmine.github.io/).
*/
jasmine : true,
/**
* This option defines globals exposed by the [jQuery](http://jquery.com/)
* JavaScript library.
*/
jquery : true,
/**
* This option defines globals available when your code is running inside
* of the Node runtime environment. [Node.js](http://nodejs.org/) is a
* server-side JavaScript environment that uses an asynchronous
* event-driven model. This option also skips some warnings that make sense
* in the browser environments but don't make sense in Node such as
* file-level `use strict` pragmas and `console.log` statements.
*/
node : true,
/**
* This option defines globals exposed by [the QUnit unit testing
* framework](http://qunitjs.com/).
*/
qunit : true,
/**
* This option defines globals available when your code is running inside
* of the Rhino runtime environment. [Rhino](http://www.mozilla.org/rhino/)
* is an open-source implementation of JavaScript written entirely in Java.
*/
rhino : true,
/**
* This option defines globals exposed by [the ShellJS
* library](http://documentup.com/arturadib/shelljs).
*/
shelljs : true,
/**
* This option defines globals exposed by the
* [Prototype](http://www.prototypejs.org/) JavaScript framework.
*/
prototypejs : true,
/**
* This option defines globals exposed by the [YUI](http://yuilibrary.com/)
* JavaScript framework.
*/
yui : true,
/**
* This option defines globals exposed by the "BDD" and "TDD" UIs of the
* [Mocha unit testing framework](http://mochajs.org/).
*/
mocha : true,
/**
* This option defines globals available when your code is running as a
* script for the [Windows Script
* Host](http://en.wikipedia.org/wiki/Windows_Script_Host).
*/
wsh : true,
/**
* This option defines globals available when your code is running inside
* of a Web Worker. [Web
* Workers](https://developer.mozilla.org/en/Using_web_workers) provide a
* simple means for web content to run scripts in background threads.
*/
worker : true,
/**
* This option defines non-standard but widely adopted globals such as
* `escape` and `unescape`.
*/
nonstandard : true,
/**
* This option defines globals exposed by modern browsers: all the way from
* good old `document` and `navigator` to the HTML5 `FileReader` and other
* new developments in the browser world.
*
* **Note:** This option doesn't expose variables like `alert` or
* `console`. See option `devel` for more information.
*/
browser : true,
/**
* This option defines globals available when using [the Browserify
* tool](http://browserify.org/) to build a project.
*/
browserify : true,
/**
* This option defines globals that are usually used for logging poor-man's
* debugging: `console`, `alert`, etc. It is usually a good idea to not
* ship them in production because, for example, `console.log` breaks in
* legacy versions of Internet Explorer.
*/
devel : true,
/**
* This option defines globals exposed by the [Dojo
* Toolkit](http://dojotoolkit.org/).
*/
dojo : true,
/**
* This option defines globals for typed array constructors.
*
* More info:
*
* * [JavaScript typed
* arrays](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Typed_arrays)
*/
typed : true
},
// Obsolete options
obsolete: {
onecase : true, // if one case switch statements should be allowed
regexp : true, // if the . should not be allowed in regexp literals
regexdash : true // if unescaped first/last dash (-) inside brackets
// should be tolerated
}
};
// These are the JSHint options that can take any value
// (we use this object to detect invalid options)
exports.val = {
/**
* This option lets you set the maximum length of a line.
*
* @deprecated JSHint is limiting its scope to issues of code correctness. If
* you would like to enforce rules relating to code style, check
* out [the JSCS project](https://github.com/jscs-dev/node-jscs).
*/
maxlen : false,
/**
* This option sets a specific tab width for your code.
*
* @deprecated JSHint is limiting its scope to issues of code correctness. If
* you would like to enforce rules relating to code style, check
* out [the JSCS project](https://github.com/jscs-dev/node-jscs).
*/
indent : false,
/**
* This options allows you to set the maximum amount of warnings JSHint will
* produce before giving up. Default is 50.
*/
maxerr : false,
predef : false, // predef is deprecated and being replaced by globals
/**
* This option can be used to specify a white list of global variables that
* are not formally defined in the source code. This is most useful when
* combined with the `undef` option in order to suppress warnings for
* project-specific global variables.
*
* Setting an entry to `true` enables reading and writing to that variable.
* Setting it to `false` will trigger JSHint to consider that variable
* read-only.
*
* See also the "environment" options: a set of options to be used as short
* hand for enabling global variables defined in common JavaScript
* environments.
*/
globals : false,
/**
* This option enforces the consistency of quotation marks used throughout
* your code. It accepts three values: `true` if you don't want to enforce
* one particular style but want some consistency, `"single"` if you want to
* allow only single quotes and `"double"` if you want to allow only double
* quotes.
*
* @deprecated JSHint is limiting its scope to issues of code correctness. If
* you would like to enforce rules relating to code style, check
* out [the JSCS project](https://github.com/jscs-dev/node-jscs).
*/
quotmark : false,
scope : false,
/**
* This option lets you set the max number of statements allowed per function:
*
* // jshint maxstatements:4
*
* function main() {
* var i = 0;
* var j = 0;
*
* // Function declarations count as one statement. Their bodies
* // don't get taken into account for the outer function.
* function inner() {
* var i2 = 1;
* var j2 = 1;
*
* return i2 + j2;
* }
*
* j = i + j;
* return j; // JSHint: Too many statements per function. (5)
* }
*/
maxstatements: false,
/**
* This option lets you control how nested do you want your blocks to be:
*
* // jshint maxdepth:2
*
* function main(meaning) {
* var day = true;
*
* if (meaning === 42) {
* while (day) {
* shuffle();
*
* if (tired) { // JSHint: Blocks are nested too deeply (3).
* sleep();
* }
* }
* }
* }
*/
maxdepth : false,
/**
* This option lets you set the max number of formal parameters allowed per
* function:
*
* // jshint maxparams:3
*
* function login(request, onSuccess) {
* // ...
* }
*
* // JSHint: Too many parameters per function (4).
* function logout(request, isManual, whereAmI, onSuccess) {
* // ...
* }
*/
maxparams : false,
/**
* This option lets you control cyclomatic complexity throughout your code.
* Cyclomatic complexity measures the number of linearly independent paths
* through a program's source code. Read more about [cyclomatic complexity on
* Wikipedia](http://en.wikipedia.org/wiki/Cyclomatic_complexity).
*/
maxcomplexity: false,
/**
* This option suppresses warnings about variable shadowing i.e. declaring a
* variable that had been already declared somewhere in the outer scope.
*
* - "inner" - check for variables defined in the same scope only
* - "outer" - check for variables defined in outer scopes as well
* - false - same as inner
* - true - allow variable shadowing
*/
shadow : false,
/**
* This option warns when you define and never use your variables. It is very
* useful for general code cleanup, especially when used in addition to
* `undef`.
*
* // jshint unused:true
*
* function test(a, b) {
* var c, d = 2;
*
* return a + d;
* }
*
* test(1, 2);
*
* // Line 3: 'b' was defined but never used.
* // Line 4: 'c' was defined but never used.
*
* In addition to that, this option will warn you about unused global
* variables declared via the `global` directive.
*
* This can be set to `vars` to only check for variables, not function
* parameters, or `strict` to check all variables and parameters. The
* default (true) behavior is to allow unused parameters that are followed by
* a used parameter.
*/
unused : true,
/**
* This option prohibits the use of a variable before it was defined.
* JavaScript has function scope only and, in addition to that, all variables
* are always moved—or hoisted— to the top of the function. This behavior can
* lead to some very nasty bugs and that's why it is safer to always use
* variable only after they have been explicitly defined.
*
* Setting this option to "nofunc" will allow function declarations to be
* ignored.
*
* For more in-depth understanding of scoping and hoisting in JavaScript,
* read [JavaScript Scoping and
* Hoisting](http://www.adequatelygood.com/2010/2/JavaScript-Scoping-and-Hoisting)
* by Ben Cherry.
*/
latedef : false,
ignore : false, // start/end ignoring lines of code, bypassing the lexer
// start - start ignoring lines, including the current line
// end - stop ignoring lines, starting on the next line
// line - ignore warnings / errors for just a single line
// (this option does not bypass the lexer)
ignoreDelimiters: false // array of start/end delimiters used to ignore
// certain chunks from code
};
// These are JSHint boolean options which are shared with JSLint
// where the definition in JSHint is opposite JSLint
exports.inverted = {
bitwise : true,
forin : true,
newcap : true,
plusplus: true,
regexp : true,
undef : true,
// Inverted and renamed, use JSHint name here
eqeqeq : true,
strict : true
};
exports.validNames = Object.keys(exports.val)
.concat(Object.keys(exports.bool.relaxing))
.concat(Object.keys(exports.bool.enforcing))
.concat(Object.keys(exports.bool.obsolete))
.concat(Object.keys(exports.bool.environments));
// These are JSHint boolean options which are shared with JSLint
// where the name has been changed but the effect is unchanged
exports.renamed = {
eqeq : "eqeqeq",
windows: "wsh",
sloppy : "strict"
};
exports.removed = {
nomen: true,
onevar: true,
passfail: true,
white: true,
gcl: true,
smarttabs: true,
trailing: true
};
},{}],17:[function(require,module,exports){
/*
* Regular expressions. Some of these are stupidly long.
*/
/*jshint maxlen:1000 */
"use strict";
// Unsafe comment or string (ax)
exports.unsafeString =
/@cc|<\/?|script|\]\s*\]|<\s*!|&lt/i;
// Unsafe characters that are silently deleted by one or more browsers (cx)
exports.unsafeChars =
/[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/;
// Characters in strings that need escaping (nx and nxg)
exports.needEsc =
/[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/;
exports.needEscGlobal =
/[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
// Star slash (lx)
exports.starSlash = /\*\//;
// Identifier (ix)
exports.identifier = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/;
// JavaScript URL (jx)
exports.javascriptURL = /^(?:javascript|jscript|ecmascript|vbscript|livescript)\s*:/i;
// Catches /* falls through */ comments (ft)
exports.fallsThrough = /^\s*\/\*\s*falls?\sthrough\s*\*\/\s*$/;
// very conservative rule (eg: only one space between the start of the comment and the first character)
// to relax the maxlen option
exports.maxlenException = /^(?:(?:\/\/|\/\*|\*) ?)?[^ ]+$/;
},{}],18:[function(require,module,exports){
"use strict";
var NameStack = require("./name-stack.js");
var state = {
syntax: {},
reset: function() {
this.tokens = {
prev: null,
next: null,
curr: null
};
this.option = {};
this.ignored = {};
this.directive = {};
this.jsonMode = false;
this.jsonWarnings = [];
this.lines = [];
this.tab = "";
this.cache = {}; // Node.JS doesn't have Map. Sniff.
this.ignoredLines = {};
this.forinifcheckneeded = false;
this.nameStack = new NameStack();
// Blank out non-multi-line-commented lines when ignoring linter errors
this.ignoreLinterErrors = false;
}
};
exports.state = state;
},{"./name-stack.js":15}],19:[function(require,module,exports){
"use strict";
exports.register = function(linter) {
// Check for properties named __proto__. This special property was
// deprecated and then re-introduced for ES6.
linter.on("Identifier", function style_scanProto(data) {
if (linter.getOption("proto")) {
return;
}
if (data.name === "__proto__") {
linter.warn("W103", {
line: data.line,
char: data.char,
data: [ data.name ]
});
}
});
// Check for properties named __iterator__. This is a special property
// available only in browsers with JavaScript 1.7 implementation.
linter.on("Identifier", function style_scanIterator(data) {
if (linter.getOption("iterator")) {
return;
}
if (data.name === "__iterator__") {
linter.warn("W104", {
line: data.line,
char: data.char,
data: [ data.name ]
});
}
});
// Check that all identifiers are using camelCase notation.
// Exceptions: names like MY_VAR and _myVar.
linter.on("Identifier", function style_scanCamelCase(data) {
if (!linter.getOption("camelcase")) {
return;
}
if (data.name.replace(/^_+|_+$/g, "").indexOf("_") > -1 && !data.name.match(/^[A-Z0-9_]*$/)) {
linter.warn("W106", {
line: data.line,
char: data.from,
data: [ data.name ]
});
}
});
// Enforce consistency in style of quoting.
linter.on("String", function style_scanQuotes(data) {
var quotmark = linter.getOption("quotmark");
var code;
if (!quotmark) {
return;
}
// If quotmark is set to 'single' warn about all double-quotes.
if (quotmark === "single" && data.quote !== "'") {
code = "W109";
}
// If quotmark is set to 'double' warn about all single-quotes.
if (quotmark === "double" && data.quote !== "\"") {
code = "W108";
}
// If quotmark is set to true, remember the first quotation style
// and then warn about all others.
if (quotmark === true) {
if (!linter.getCache("quotmark")) {
linter.setCache("quotmark", data.quote);
}
if (linter.getCache("quotmark") !== data.quote) {
code = "W110";
}
}
if (code) {
linter.warn(code, {
line: data.line,
char: data.char,
});
}
});
linter.on("Number", function style_scanNumbers(data) {
if (data.value.charAt(0) === ".") {
// Warn about a leading decimal point.
linter.warn("W008", {
line: data.line,
char: data.char,
data: [ data.value ]
});
}
if (data.value.substr(data.value.length - 1) === ".") {
// Warn about a trailing decimal point.
linter.warn("W047", {
line: data.line,
char: data.char,
data: [ data.value ]
});
}
if (/^00+/.test(data.value)) {
// Multiple leading zeroes.
linter.warn("W046", {
line: data.line,
char: data.char,
data: [ data.value ]
});
}
});
// Warn about script URLs.
linter.on("String", function style_scanJavaScriptURLs(data) {
var re = /^(?:javascript|jscript|ecmascript|vbscript|livescript)\s*:/i;
if (linter.getOption("scripturl")) {
return;
}
if (re.test(data.value)) {
linter.warn("W107", {
line: data.line,
char: data.char
});
}
});
};
},{}],20:[function(require,module,exports){
// jshint -W001
"use strict";
// Identifiers provided by the ECMAScript standard.
exports.reservedVars = {
arguments : false,
NaN : false
};
exports.ecmaIdentifiers = {
3: {
Array : false,
Boolean : false,
Date : false,
decodeURI : false,
decodeURIComponent : false,
encodeURI : false,
encodeURIComponent : false,
Error : false,
"eval" : false,
EvalError : false,
Function : false,
hasOwnProperty : false,
isFinite : false,
isNaN : false,
Math : false,
Number : false,
Object : false,
parseInt : false,
parseFloat : false,
RangeError : false,
ReferenceError : false,
RegExp : false,
String : false,
SyntaxError : false,
TypeError : false,
URIError : false
},
5: {
JSON : false
},
6: {
Map : false,
Promise : false,
Proxy : false,
Reflect : false,
Set : false,
Symbol : false,
WeakMap : false,
WeakSet : false
}
};
// Global variables commonly provided by a web browser environment.
exports.browser = {
Audio : false,
Blob : false,
addEventListener : false,
applicationCache : false,
atob : false,
blur : false,
btoa : false,
cancelAnimationFrame : false,
CanvasGradient : false,
CanvasPattern : false,
CanvasRenderingContext2D: false,
CSS : false,
clearInterval : false,
clearTimeout : false,
close : false,
closed : false,
Comment : false,
CustomEvent : false,
DOMParser : false,
defaultStatus : false,
Document : false,
document : false,
DocumentFragment : false,
Element : false,
ElementTimeControl : false,
Event : false,
event : false,
FileReader : false,
FormData : false,
focus : false,
frames : false,
getComputedStyle : false,
HTMLElement : false,
HTMLAnchorElement : false,
HTMLBaseElement : false,
HTMLBlockquoteElement: false,
HTMLBodyElement : false,
HTMLBRElement : false,
HTMLButtonElement : false,
HTMLCanvasElement : false,
HTMLDirectoryElement : false,
HTMLDivElement : false,
HTMLDListElement : false,
HTMLFieldSetElement : false,
HTMLFontElement : false,
HTMLFormElement : false,
HTMLFrameElement : false,
HTMLFrameSetElement : false,
HTMLHeadElement : false,
HTMLHeadingElement : false,
HTMLHRElement : false,
HTMLHtmlElement : false,
HTMLIFrameElement : false,
HTMLImageElement : false,
HTMLInputElement : false,
HTMLIsIndexElement : false,
HTMLLabelElement : false,
HTMLLayerElement : false,
HTMLLegendElement : false,
HTMLLIElement : false,
HTMLLinkElement : false,
HTMLMapElement : false,
HTMLMenuElement : false,
HTMLMetaElement : false,
HTMLModElement : false,
HTMLObjectElement : false,
HTMLOListElement : false,
HTMLOptGroupElement : false,
HTMLOptionElement : false,
HTMLParagraphElement : false,
HTMLParamElement : false,
HTMLPreElement : false,
HTMLQuoteElement : false,
HTMLScriptElement : false,
HTMLSelectElement : false,
HTMLStyleElement : false,
HTMLTableCaptionElement: false,
HTMLTableCellElement : false,
HTMLTableColElement : false,
HTMLTableElement : false,
HTMLTableRowElement : false,
HTMLTableSectionElement: false,
HTMLTextAreaElement : false,
HTMLTitleElement : false,
HTMLUListElement : false,
HTMLVideoElement : false,
history : false,
Image : false,
Intl : false,
length : false,
localStorage : false,
location : false,
matchMedia : false,
MessageChannel : false,
MessageEvent : false,
MessagePort : false,
MouseEvent : false,
moveBy : false,
moveTo : false,
MutationObserver : false,
name : false,
Node : false,
NodeFilter : false,
NodeList : false,
Notification : false,
navigator : false,
onbeforeunload : true,
onblur : true,
onerror : true,
onfocus : true,
onload : true,
onresize : true,
onunload : true,
open : false,
openDatabase : false,
opener : false,
Option : false,
parent : false,
print : false,
Range : false,
requestAnimationFrame : false,
removeEventListener : false,
resizeBy : false,
resizeTo : false,
screen : false,
scroll : false,
scrollBy : false,
scrollTo : false,
sessionStorage : false,
setInterval : false,
setTimeout : false,
SharedWorker : false,
status : false,
SVGAElement : false,
SVGAltGlyphDefElement: false,
SVGAltGlyphElement : false,
SVGAltGlyphItemElement: false,
SVGAngle : false,
SVGAnimateColorElement: false,
SVGAnimateElement : false,
SVGAnimateMotionElement: false,
SVGAnimateTransformElement: false,
SVGAnimatedAngle : false,
SVGAnimatedBoolean : false,
SVGAnimatedEnumeration: false,
SVGAnimatedInteger : false,
SVGAnimatedLength : false,
SVGAnimatedLengthList: false,
SVGAnimatedNumber : false,
SVGAnimatedNumberList: false,
SVGAnimatedPathData : false,
SVGAnimatedPoints : false,
SVGAnimatedPreserveAspectRatio: false,
SVGAnimatedRect : false,
SVGAnimatedString : false,
SVGAnimatedTransformList: false,
SVGAnimationElement : false,
SVGCSSRule : false,
SVGCircleElement : false,
SVGClipPathElement : false,
SVGColor : false,
SVGColorProfileElement: false,
SVGColorProfileRule : false,
SVGComponentTransferFunctionElement: false,
SVGCursorElement : false,
SVGDefsElement : false,
SVGDescElement : false,
SVGDocument : false,
SVGElement : false,
SVGElementInstance : false,
SVGElementInstanceList: false,
SVGEllipseElement : false,
SVGExternalResourcesRequired: false,
SVGFEBlendElement : false,
SVGFEColorMatrixElement: false,
SVGFEComponentTransferElement: false,
SVGFECompositeElement: false,
SVGFEConvolveMatrixElement: false,
SVGFEDiffuseLightingElement: false,
SVGFEDisplacementMapElement: false,
SVGFEDistantLightElement: false,
SVGFEFloodElement : false,
SVGFEFuncAElement : false,
SVGFEFuncBElement : false,
SVGFEFuncGElement : false,
SVGFEFuncRElement : false,
SVGFEGaussianBlurElement: false,
SVGFEImageElement : false,
SVGFEMergeElement : false,
SVGFEMergeNodeElement: false,
SVGFEMorphologyElement: false,
SVGFEOffsetElement : false,
SVGFEPointLightElement: false,
SVGFESpecularLightingElement: false,
SVGFESpotLightElement: false,
SVGFETileElement : false,
SVGFETurbulenceElement: false,
SVGFilterElement : false,
SVGFilterPrimitiveStandardAttributes: false,
SVGFitToViewBox : false,
SVGFontElement : false,
SVGFontFaceElement : false,
SVGFontFaceFormatElement: false,
SVGFontFaceNameElement: false,
SVGFontFaceSrcElement: false,
SVGFontFaceUriElement: false,
SVGForeignObjectElement: false,
SVGGElement : false,
SVGGlyphElement : false,
SVGGlyphRefElement : false,
SVGGradientElement : false,
SVGHKernElement : false,
SVGICCColor : false,
SVGImageElement : false,
SVGLangSpace : false,
SVGLength : false,
SVGLengthList : false,
SVGLineElement : false,
SVGLinearGradientElement: false,
SVGLocatable : false,
SVGMPathElement : false,
SVGMarkerElement : false,
SVGMaskElement : false,
SVGMatrix : false,
SVGMetadataElement : false,
SVGMissingGlyphElement: false,
SVGNumber : false,
SVGNumberList : false,
SVGPaint : false,
SVGPathElement : false,
SVGPathSeg : false,
SVGPathSegArcAbs : false,
SVGPathSegArcRel : false,
SVGPathSegClosePath : false,
SVGPathSegCurvetoCubicAbs: false,
SVGPathSegCurvetoCubicRel: false,
SVGPathSegCurvetoCubicSmoothAbs: false,
SVGPathSegCurvetoCubicSmoothRel: false,
SVGPathSegCurvetoQuadraticAbs: false,
SVGPathSegCurvetoQuadraticRel: false,
SVGPathSegCurvetoQuadraticSmoothAbs: false,
SVGPathSegCurvetoQuadraticSmoothRel: false,
SVGPathSegLinetoAbs : false,
SVGPathSegLinetoHorizontalAbs: false,
SVGPathSegLinetoHorizontalRel: false,
SVGPathSegLinetoRel : false,
SVGPathSegLinetoVerticalAbs: false,
SVGPathSegLinetoVerticalRel: false,
SVGPathSegList : false,
SVGPathSegMovetoAbs : false,
SVGPathSegMovetoRel : false,
SVGPatternElement : false,
SVGPoint : false,
SVGPointList : false,
SVGPolygonElement : false,
SVGPolylineElement : false,
SVGPreserveAspectRatio: false,
SVGRadialGradientElement: false,
SVGRect : false,
SVGRectElement : false,
SVGRenderingIntent : false,
SVGSVGElement : false,
SVGScriptElement : false,
SVGSetElement : false,
SVGStopElement : false,
SVGStringList : false,
SVGStylable : false,
SVGStyleElement : false,
SVGSwitchElement : false,
SVGSymbolElement : false,
SVGTRefElement : false,
SVGTSpanElement : false,
SVGTests : false,
SVGTextContentElement: false,
SVGTextElement : false,
SVGTextPathElement : false,
SVGTextPositioningElement: false,
SVGTitleElement : false,
SVGTransform : false,
SVGTransformList : false,
SVGTransformable : false,
SVGURIReference : false,
SVGUnitTypes : false,
SVGUseElement : false,
SVGVKernElement : false,
SVGViewElement : false,
SVGViewSpec : false,
SVGZoomAndPan : false,
Text : false,
TextDecoder : false,
TextEncoder : false,
TimeEvent : false,
top : false,
URL : false,
WebGLActiveInfo : false,
WebGLBuffer : false,
WebGLContextEvent : false,
WebGLFramebuffer : false,
WebGLProgram : false,
WebGLRenderbuffer : false,
WebGLRenderingContext: false,
WebGLShader : false,
WebGLShaderPrecisionFormat: false,
WebGLTexture : false,
WebGLUniformLocation : false,
WebSocket : false,
window : false,
Worker : false,
XDomainRequest : false,
XMLHttpRequest : false,
XMLSerializer : false,
XPathEvaluator : false,
XPathException : false,
XPathExpression : false,
XPathNamespace : false,
XPathNSResolver : false,
XPathResult : false
};
exports.devel = {
alert : false,
confirm: false,
console: false,
Debug : false,
opera : false,
prompt : false
};
exports.worker = {
importScripts : true,
postMessage : true,
self : true,
FileReaderSync : true
};
// Widely adopted global names that are not part of ECMAScript standard
exports.nonstandard = {
escape : false,
unescape: false
};
// Globals provided by popular JavaScript environments.
exports.couch = {
"require" : false,
respond : false,
getRow : false,
emit : false,
send : false,
start : false,
sum : false,
log : false,
exports : false,
module : false,
provides : false
};
exports.node = {
__filename : false,
__dirname : false,
GLOBAL : false,
global : false,
module : false,
require : false,
// These globals are writeable because Node allows the following
// usage pattern: var Buffer = require("buffer").Buffer;
Buffer : true,
console : true,
exports : true,
process : true,
setTimeout : true,
clearTimeout : true,
setInterval : true,
clearInterval : true,
setImmediate : true, // v0.9.1+
clearImmediate: true // v0.9.1+
};
exports.browserify = {
__filename : false,
__dirname : false,
global : false,
module : false,
require : false,
Buffer : true,
exports : true,
process : true
};
exports.phantom = {
phantom : true,
require : true,
WebPage : true,
console : true, // in examples, but undocumented
exports : true // v1.7+
};
exports.qunit = {
asyncTest : false,
deepEqual : false,
equal : false,
expect : false,
module : false,
notDeepEqual : false,
notEqual : false,
notPropEqual : false,
notStrictEqual : false,
ok : false,
propEqual : false,
QUnit : false,
raises : false,
start : false,
stop : false,
strictEqual : false,
test : false,
"throws" : false
};
exports.rhino = {
defineClass : false,
deserialize : false,
gc : false,
help : false,
importClass : false,
importPackage: false,
"java" : false,
load : false,
loadClass : false,
Packages : false,
print : false,
quit : false,
readFile : false,
readUrl : false,
runCommand : false,
seal : false,
serialize : false,
spawn : false,
sync : false,
toint32 : false,
version : false
};
exports.shelljs = {
target : false,
echo : false,
exit : false,
cd : false,
pwd : false,
ls : false,
find : false,
cp : false,
rm : false,
mv : false,
mkdir : false,
test : false,
cat : false,
sed : false,
grep : false,
which : false,
dirs : false,
pushd : false,
popd : false,
env : false,
exec : false,
chmod : false,
config : false,
error : false,
tempdir : false
};
exports.typed = {
ArrayBuffer : false,
ArrayBufferView : false,
DataView : false,
Float32Array : false,
Float64Array : false,
Int16Array : false,
Int32Array : false,
Int8Array : false,
Uint16Array : false,
Uint32Array : false,
Uint8Array : false,
Uint8ClampedArray : false
};
exports.wsh = {
ActiveXObject : true,
Enumerator : true,
GetObject : true,
ScriptEngine : true,
ScriptEngineBuildVersion : true,
ScriptEngineMajorVersion : true,
ScriptEngineMinorVersion : true,
VBArray : true,
WSH : true,
WScript : true,
XDomainRequest : true
};
// Globals provided by popular JavaScript libraries.
exports.dojo = {
dojo : false,
dijit : false,
dojox : false,
define : false,
"require": false
};
exports.jquery = {
"$" : false,
jQuery : false
};
exports.mootools = {
"$" : false,
"$$" : false,
Asset : false,
Browser : false,
Chain : false,
Class : false,
Color : false,
Cookie : false,
Core : false,
Document : false,
DomReady : false,
DOMEvent : false,
DOMReady : false,
Drag : false,
Element : false,
Elements : false,
Event : false,
Events : false,
Fx : false,
Group : false,
Hash : false,
HtmlTable : false,
IFrame : false,
IframeShim : false,
InputValidator: false,
instanceOf : false,
Keyboard : false,
Locale : false,
Mask : false,
MooTools : false,
Native : false,
Options : false,
OverText : false,
Request : false,
Scroller : false,
Slick : false,
Slider : false,
Sortables : false,
Spinner : false,
Swiff : false,
Tips : false,
Type : false,
typeOf : false,
URI : false,
Window : false
};
exports.prototypejs = {
"$" : false,
"$$" : false,
"$A" : false,
"$F" : false,
"$H" : false,
"$R" : false,
"$break" : false,
"$continue" : false,
"$w" : false,
Abstract : false,
Ajax : false,
Class : false,
Enumerable : false,
Element : false,
Event : false,
Field : false,
Form : false,
Hash : false,
Insertion : false,
ObjectRange : false,
PeriodicalExecuter: false,
Position : false,
Prototype : false,
Selector : false,
Template : false,
Toggle : false,
Try : false,
Autocompleter : false,
Builder : false,
Control : false,
Draggable : false,
Draggables : false,
Droppables : false,
Effect : false,
Sortable : false,
SortableObserver : false,
Sound : false,
Scriptaculous : false
};
exports.yui = {
YUI : false,
Y : false,
YUI_config: false
};
exports.mocha = {
// BDD
describe : false,
xdescribe : false,
it : false,
xit : false,
context : false,
xcontext : false,
before : false,
after : false,
beforeEach : false,
afterEach : false,
// TDD
suite : false,
test : false,
setup : false,
teardown : false,
suiteSetup : false,
suiteTeardown : false
};
exports.jasmine = {
jasmine : false,
describe : false,
it : false,
xit : false,
beforeEach : false,
afterEach : false,
setFixtures : false,
loadFixtures: false,
spyOn : false,
expect : false,
// Jasmine 1.3
runs : false,
waitsFor : false,
waits : false,
// Jasmine 2.1
beforeAll : false,
afterAll : false,
fail : false,
fdescribe : false,
fit : false
};
},{}],"jshint":[function(require,module,exports){
/*!
* JSHint, by JSHint Community.
*
* This file (and this file only) is licensed under the same slightly modified
* MIT license that JSLint is. It stops evil-doers everywhere:
*
* Copyright (c) 2002 Douglas Crockford (www.JSLint.com)
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* The Software shall be used for Good, not Evil.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
/*jshint quotmark:double */
/*global console:true */
/*exported console */
var _ = require("underscore");
var events = require("events");
var vars = require("./vars.js");
var messages = require("./messages.js");
var Lexer = require("./lex.js").Lexer;
var reg = require("./reg.js");
var state = require("./state.js").state;
var style = require("./style.js");
var options = require("./options.js");
// We need this module here because environments such as IE and Rhino
// don't necessarilly expose the 'console' API and browserify uses
// it to log things. It's a sad state of affair, really.
var console = require("console-browserify");
// We build the application inside a function so that we produce only a singleton
// variable. That function will be invoked immediately, and its return value is
// the JSHINT function itself.
var JSHINT = (function() {
"use strict";
var api, // Extension API
// These are operators that should not be used with the ! operator.
bang = {
"<" : true,
"<=" : true,
"==" : true,
"===": true,
"!==": true,
"!=" : true,
">" : true,
">=" : true,
"+" : true,
"-" : true,
"*" : true,
"/" : true,
"%" : true
},
declared, // Globals that were declared using /*global ... */ syntax.
exported, // Variables that are used outside of the current file.
functionicity = [
"closure", "exception", "global", "label",
"outer", "unused", "var"
],
funct, // The current function
functions, // All of the functions
global, // The global scope
implied, // Implied globals
inblock,
indent,
lookahead,
lex,
member,
membersOnly,
predefined, // Global variables defined by option
scope, // The current scope
stack,
unuseds,
urls,
extraModules = [],
emitter = new events.EventEmitter();
function checkOption(name, t) {
name = name.trim();
if (/^[+-]W\d{3}$/g.test(name)) {
return true;
}
if (options.validNames.indexOf(name) === -1) {
if (t.type !== "jslint" && !_.has(options.removed, name)) {
error("E001", t, name);
return false;
}
}
return true;
}
function isString(obj) {
return Object.prototype.toString.call(obj) === "[object String]";
}
function isIdentifier(tkn, value) {
if (!tkn)
return false;
if (!tkn.identifier || tkn.value !== value)
return false;
return true;
}
function isReserved(token) {
if (!token.reserved) {
return false;
}
var meta = token.meta;
if (meta && meta.isFutureReservedWord && state.option.inES5()) {
// ES3 FutureReservedWord in an ES5 environment.
if (!meta.es5) {
return false;
}
// Some ES5 FutureReservedWord identifiers are active only
// within a strict mode environment.
if (meta.strictOnly) {
if (!state.option.strict && !state.directive["use strict"]) {
return false;
}
}
if (token.isProperty) {
return false;
}
}
return true;
}
function supplant(str, data) {
return str.replace(/\{([^{}]*)\}/g, function(a, b) {
var r = data[b];
return typeof r === "string" || typeof r === "number" ? r : a;
});
}
function combine(dest, src) {
Object.keys(src).forEach(function(name) {
if (_.has(JSHINT.blacklist, name)) return;
dest[name] = src[name];
});
}
function processenforceall() {
if (state.option.enforceall) {
for (var enforceopt in options.bool.enforcing) {
if (state.option[enforceopt] === undefined) {
state.option[enforceopt] = true;
}
}
for (var relaxopt in options.bool.relaxing) {
if (state.option[relaxopt] === undefined) {
state.option[relaxopt] = false;
}
}
}
}
function assume() {
if (state.option.es5) {
warning("I003");
}
processenforceall();
if (!state.option.es3) {
combine(predefined, vars.ecmaIdentifiers[5]);
}
if (state.option.esnext) {
combine(predefined, vars.ecmaIdentifiers[6]);
}
if (state.option.couch) {
combine(predefined, vars.couch);
}
if (state.option.qunit) {
combine(predefined, vars.qunit);
}
if (state.option.rhino) {
combine(predefined, vars.rhino);
}
if (state.option.shelljs) {
combine(predefined, vars.shelljs);
combine(predefined, vars.node);
}
if (state.option.typed) {
combine(predefined, vars.typed);
}
if (state.option.phantom) {
combine(predefined, vars.phantom);
}
if (state.option.prototypejs) {
combine(predefined, vars.prototypejs);
}
if (state.option.node) {
combine(predefined, vars.node);
combine(predefined, vars.typed);
}
if (state.option.devel) {
combine(predefined, vars.devel);
}
if (state.option.dojo) {
combine(predefined, vars.dojo);
}
if (state.option.browser) {
combine(predefined, vars.browser);
combine(predefined, vars.typed);
}
if (state.option.browserify) {
combine(predefined, vars.browser);
combine(predefined, vars.typed);
combine(predefined, vars.browserify);
}
if (state.option.nonstandard) {
combine(predefined, vars.nonstandard);
}
if (state.option.jasmine) {
combine(predefined, vars.jasmine);
}
if (state.option.jquery) {
combine(predefined, vars.jquery);
}
if (state.option.mootools) {
combine(predefined, vars.mootools);
}
if (state.option.worker) {
combine(predefined, vars.worker);
}
if (state.option.wsh) {
combine(predefined, vars.wsh);
}
if (state.option.globalstrict && state.option.strict !== false) {
state.option.strict = true;
}
if (state.option.yui) {
combine(predefined, vars.yui);
}
if (state.option.mocha) {
combine(predefined, vars.mocha);
}
// Let's assume that chronologically ES3 < ES5 < ES6/ESNext < Moz
state.option.inMoz = function(strict) {
if (strict) {
return state.option.moz && !state.option.esnext;
}
return state.option.moz;
};
state.option.inESNext = function(strict) {
if (strict) {
return !state.option.moz && state.option.esnext;
}
return state.option.moz || state.option.esnext;
};
state.option.inES5 = function(/* strict */) {
return !state.option.es3;
};
state.option.inES3 = function(strict) {
if (strict) {
return !state.option.moz && !state.option.esnext && state.option.es3;
}
return state.option.es3;
};
}
// Produce an error warning.
function quit(code, line, chr) {
var percentage = Math.floor((line / state.lines.length) * 100);
var message = messages.errors[code].desc;
throw {
name: "JSHintError",
line: line,
character: chr,
message: message + " (" + percentage + "% scanned).",
raw: message,
code: code
};
}
function isundef(scope, code, token, a) {
if (!state.ignored[code] && state.option.undef !== false) {
JSHINT.undefs.push([scope, code, token, a]);
}
}
function removeIgnoredMessages() {
var ignored = state.ignoredLines;
if (_.isEmpty(ignored)) return;
JSHINT.errors = _.reject(JSHINT.errors, function(err) { return ignored[err.line] });
}
function warning(code, t, a, b, c, d) {
var ch, l, w, msg;
if (/^W\d{3}$/.test(code)) {
if (state.ignored[code])
return;
msg = messages.warnings[code];
} else if (/E\d{3}/.test(code)) {
msg = messages.errors[code];
} else if (/I\d{3}/.test(code)) {
msg = messages.info[code];
}
t = t || state.tokens.next;
if (t.id === "(end)") { // `~
t = state.tokens.curr;
}
l = t.line || 0;
ch = t.from || 0;
w = {
id: "(error)",
raw: msg.desc,
code: msg.code,
evidence: state.lines[l - 1] || "",
line: l,
character: ch,
scope: JSHINT.scope,
a: a,
b: b,
c: c,
d: d
};
w.reason = supplant(msg.desc, w);
JSHINT.errors.push(w);
removeIgnoredMessages();
if (JSHINT.errors.length >= state.option.maxerr)
quit("E043", l, ch);
return w;
}
function warningAt(m, l, ch, a, b, c, d) {
return warning(m, {
line: l,
from: ch
}, a, b, c, d);
}
function error(m, t, a, b, c, d) {
warning(m, t, a, b, c, d);
}
function errorAt(m, l, ch, a, b, c, d) {
return error(m, {
line: l,
from: ch
}, a, b, c, d);
}
// Tracking of "internal" scripts, like eval containing a static string
function addInternalSrc(elem, src) {
var i;
i = {
id: "(internal)",
elem: elem,
value: src
};
JSHINT.internals.push(i);
return i;
}
// name: string
// opts: { type: string, token: token, islet: bool }
function addlabel(name, opts) {
opts = opts || {};
var type = opts.type;
var token = opts.token;
var islet = opts.islet;
// Define label in the current function in the current scope.
if (type === "exception") {
if (_.has(funct["(context)"], name)) {
if (funct[name] !== true && !state.option.node) {
warning("W002", state.tokens.next, name);
}
}
}
if (_.has(funct, name) && !funct["(global)"]) {
if (funct[name] === true) {
if (state.option.latedef) {
if ((state.option.latedef === true && _.contains([funct[name], type], "unction")) ||
!_.contains([funct[name], type], "unction")) {
warning("W003", state.tokens.next, name);
}
}
} else {
if ((!state.option.shadow || _.contains([ "inner", "outer" ], state.option.shadow)) &&
type !== "exception" || funct["(blockscope)"].getlabel(name)) {
warning("W004", state.tokens.next, name);
}
}
}
if (funct["(context)"] && _.has(funct["(context)"], name) && type !== "function") {
if (state.option.shadow === "outer") {
warning("W123", state.tokens.next, name);
}
}
// if the identifier is from a let, adds it only to the current blockscope
if (islet) {
funct["(blockscope)"].current.add(name, type, state.tokens.curr);
if (funct["(blockscope)"].atTop() && exported[name]) {
state.tokens.curr.exported = true;
}
} else {
funct["(blockscope)"].shadow(name);
funct[name] = type;
if (token) {
funct["(tokens)"][name] = token;
}
setprop(funct, name, { unused: opts.unused || false });
if (funct["(global)"]) {
global[name] = funct;
if (_.has(implied, name)) {
if (state.option.latedef) {
if ((state.option.latedef === true && _.contains([funct[name], type], "unction")) ||
!_.contains([funct[name], type], "unction")) {
warning("W003", state.tokens.next, name);
}
}
delete implied[name];
}
} else {
scope[name] = funct;
}
}
}
function doOption() {
var nt = state.tokens.next;
var body = nt.body.split(",").map(function(s) { return s.trim(); });
var predef = {};
if (nt.type === "globals") {
body.forEach(function(g) {
g = g.split(":");
var key = (g[0] || "").trim();
var val = (g[1] || "").trim();
if (key.charAt(0) === "-") {
key = key.slice(1);
val = false;
JSHINT.blacklist[key] = key;
delete predefined[key];
} else {
predef[key] = (val === "true");
}
});
combine(predefined, predef);
for (var key in predef) {
if (_.has(predef, key)) {
declared[key] = nt;
}
}
}
if (nt.type === "exported") {
body.forEach(function(e) {
exported[e] = true;
});
}
if (nt.type === "members") {
membersOnly = membersOnly || {};
body.forEach(function(m) {
var ch1 = m.charAt(0);
var ch2 = m.charAt(m.length - 1);
if (ch1 === ch2 && (ch1 === "\"" || ch1 === "'")) {
m = m
.substr(1, m.length - 2)
.replace("\\\"", "\"");
}
membersOnly[m] = false;
});
}
var numvals = [
"maxstatements",
"maxparams",
"maxdepth",
"maxcomplexity",
"maxerr",
"maxlen",
"indent"
];
if (nt.type === "jshint" || nt.type === "jslint") {
body.forEach(function(g) {
g = g.split(":");
var key = (g[0] || "").trim();
var val = (g[1] || "").trim();
if (!checkOption(key, nt)) {
return;
}
if (numvals.indexOf(key) >= 0) {
// GH988 - numeric options can be disabled by setting them to `false`
if (val !== "false") {
val = +val;
if (typeof val !== "number" || !isFinite(val) || val <= 0 || Math.floor(val) !== val) {
error("E032", nt, g[1].trim());
return;
}
state.option[key] = val;
} else {
state.option[key] = key === "indent" ? 4 : false;
}
return;
}
if (key === "validthis") {
// `validthis` is valid only within a function scope.
if (funct["(global)"])
return void error("E009");
if (val !== "true" && val !== "false")
return void error("E002", nt);
state.option.validthis = (val === "true");
return;
}
if (key === "quotmark") {
switch (val) {
case "true":
case "false":
state.option.quotmark = (val === "true");
break;
case "double":
case "single":
state.option.quotmark = val;
break;
default:
error("E002", nt);
}
return;
}
if (key === "shadow") {
switch (val) {
case "true":
state.option.shadow = true;
break;
case "outer":
state.option.shadow = "outer";
break;
case "false":
case "inner":
state.option.shadow = "inner";
break;
default:
error("E002", nt);
}
return;
}
if (key === "unused") {
switch (val) {
case "true":
state.option.unused = true;
break;
case "false":
state.option.unused = false;
break;
case "vars":
case "strict":
state.option.unused = val;
break;
default:
error("E002", nt);
}
return;
}
if (key === "latedef") {
switch (val) {
case "true":
state.option.latedef = true;
break;
case "false":
state.option.latedef = false;
break;
case "nofunc":
state.option.latedef = "nofunc";
break;
default:
error("E002", nt);
}
return;
}
if (key === "ignore") {
switch (val) {
case "start":
state.ignoreLinterErrors = true;
break;
case "end":
state.ignoreLinterErrors = false;
break;
case "line":
state.ignoredLines[nt.line] = true;
removeIgnoredMessages();
break;
default:
error("E002", nt);
}
return;
}
var match = /^([+-])(W\d{3})$/g.exec(key);
if (match) {
// ignore for -W..., unignore for +W...
state.ignored[match[2]] = (match[1] === "-");
return;
}
var tn;
if (val === "true" || val === "false") {
if (nt.type === "jslint") {
tn = options.renamed[key] || key;
state.option[tn] = (val === "true");
if (options.inverted[tn] !== undefined) {
state.option[tn] = !state.option[tn];
}
} else {
state.option[key] = (val === "true");
}
if (key === "newcap") {
state.option["(explicitNewcap)"] = true;
}
return;
}
error("E002", nt);
});
assume();
}
}
// We need a peek function. If it has an argument, it peeks that much farther
// ahead. It is used to distinguish
// for ( var i in ...
// from
// for ( var i = ...
function peek(p) {
var i = p || 0, j = 0, t;
while (j <= i) {
t = lookahead[j];
if (!t) {
t = lookahead[j] = lex.token();
}
j += 1;
}
return t;
}
function peekIgnoreEOL() {
var i = 0;
var t;
do {
t = peek(i++);
} while (t.id === "(endline)");
return t;
}
// Produce the next token. It looks for programming errors.
function advance(id, t) {
switch (state.tokens.curr.id) {
case "(number)":
if (state.tokens.next.id === ".") {
warning("W005", state.tokens.curr);
}
break;
case "-":
if (state.tokens.next.id === "-" || state.tokens.next.id === "--") {
warning("W006");
}
break;
case "+":
if (state.tokens.next.id === "+" || state.tokens.next.id === "++") {
warning("W007");
}
break;
}
if (id && state.tokens.next.id !== id) {
if (t) {
if (state.tokens.next.id === "(end)") {
error("E019", t, t.id);
} else {
error("E020", state.tokens.next, id, t.id, t.line, state.tokens.next.value);
}
} else if (state.tokens.next.type !== "(identifier)" || state.tokens.next.value !== id) {
// parameter destructuring with rest operator
if (state.tokens.next.value === "...") {
if (!state.option.esnext) {
warning("W119", state.tokens.next, "spread/rest operator");
}
} else {
warning("W116", state.tokens.next, id, state.tokens.next.value);
}
}
}
state.tokens.prev = state.tokens.curr;
state.tokens.curr = state.tokens.next;
for (;;) {
state.tokens.next = lookahead.shift() || lex.token();
if (!state.tokens.next) { // No more tokens left, give up
quit("E041", state.tokens.curr.line);
}
if (state.tokens.next.id === "(end)" || state.tokens.next.id === "(error)") {
return;
}
if (state.tokens.next.check) {
state.tokens.next.check();
}
if (state.tokens.next.isSpecial) {
doOption();
} else {
if (state.tokens.next.id !== "(endline)") {
break;
}
}
}
}
function isInfix(token) {
return token.infix || (!token.identifier && !!token.led);
}
function isEndOfExpr() {
var curr = state.tokens.curr;
var next = state.tokens.next;
if (next.id === ";" || next.id === "}" || next.id === ":") {
return true;
}
if (isInfix(next) === isInfix(curr) || (curr.id === "yield" && state.option.inMoz(true))) {
return curr.line !== startLine(next);
}
return false;
}
function isBeginOfExpr(prev) {
return !prev.left && prev.arity !== "unary";
}
// This is the heart of JSHINT, the Pratt parser. In addition to parsing, it
// is looking for ad hoc lint patterns. We add .fud to Pratt's model, which is
// like .nud except that it is only used on the first token of a statement.
// Having .fud makes it much easier to define statement-oriented languages like
// JavaScript. I retained Pratt's nomenclature.
// .nud Null denotation
// .fud First null denotation
// .led Left denotation
// lbp Left binding power
// rbp Right binding power
// They are elements of the parsing method called Top Down Operator Precedence.
function expression(rbp, initial) {
var left, isArray = false, isObject = false, isLetExpr = false;
state.nameStack.push();
// if current expression is a let expression
if (!initial && state.tokens.next.value === "let" && peek(0).value === "(") {
if (!state.option.inMoz(true)) {
warning("W118", state.tokens.next, "let expressions");
}
isLetExpr = true;
// create a new block scope we use only for the current expression
funct["(blockscope)"].stack();
advance("let");
advance("(");
state.syntax["let"].fud.call(state.syntax["let"].fud, false);
advance(")");
}
if (state.tokens.next.id === "(end)")
error("E006", state.tokens.curr);
var isDangerous =
state.option.asi &&
state.tokens.prev.line !== startLine(state.tokens.curr) &&
_.contains(["]", ")"], state.tokens.prev.id) &&
_.contains(["[", "("], state.tokens.curr.id);
if (isDangerous)
warning("W014", state.tokens.curr, state.tokens.curr.id);
advance();
if (initial) {
funct["(verb)"] = state.tokens.curr.value;
state.tokens.curr.beginsStmt = true;
}
if (initial === true && state.tokens.curr.fud) {
left = state.tokens.curr.fud();
} else {
if (state.tokens.curr.nud) {
left = state.tokens.curr.nud();
} else {
error("E030", state.tokens.curr, state.tokens.curr.id);
}
// TODO: use pratt mechanics rather than special casing template tokens
while ((rbp < state.tokens.next.lbp || state.tokens.next.type === "(template)") &&
!isEndOfExpr()) {
isArray = state.tokens.curr.value === "Array";
isObject = state.tokens.curr.value === "Object";
// #527, new Foo.Array(), Foo.Array(), new Foo.Object(), Foo.Object()
// Line breaks in IfStatement heads exist to satisfy the checkJSHint
// "Line too long." error.
if (left && (left.value || (left.first && left.first.value))) {
// If the left.value is not "new", or the left.first.value is a "."
// then safely assume that this is not "new Array()" and possibly
// not "new Object()"...
if (left.value !== "new" ||
(left.first && left.first.value && left.first.value === ".")) {
isArray = false;
// ...In the case of Object, if the left.value and state.tokens.curr.value
// are not equal, then safely assume that this not "new Object()"
if (left.value !== state.tokens.curr.value) {
isObject = false;
}
}
}
advance();
if (isArray && state.tokens.curr.id === "(" && state.tokens.next.id === ")") {
warning("W009", state.tokens.curr);
}
if (isObject && state.tokens.curr.id === "(" && state.tokens.next.id === ")") {
warning("W010", state.tokens.curr);
}
if (left && state.tokens.curr.led) {
left = state.tokens.curr.led(left);
} else {
error("E033", state.tokens.curr, state.tokens.curr.id);
}
}
}
if (isLetExpr) {
funct["(blockscope)"].unstack();
}
state.nameStack.pop();
return left;
}
// Functions for conformance of style.
function startLine(token) {
return token.startLine || token.line;
}
function nobreaknonadjacent(left, right) {
left = left || state.tokens.curr;
right = right || state.tokens.next;
if (!state.option.laxbreak && left.line !== startLine(right)) {
warning("W014", right, right.value);
}
}
function nolinebreak(t) {
t = t || state.tokens.curr;
if (t.line !== startLine(state.tokens.next)) {
warning("E022", t, t.value);
}
}
function nobreakcomma(left, right) {
if (left.line !== startLine(right)) {
if (!state.option.laxcomma) {
if (comma.first) {
warning("I001");
comma.first = false;
}
warning("W014", left, right.value);
}
}
}
function comma(opts) {
opts = opts || {};
if (!opts.peek) {
nobreakcomma(state.tokens.curr, state.tokens.next);
advance(",");
} else {
nobreakcomma(state.tokens.prev, state.tokens.curr);
}
if (state.tokens.next.identifier && !(opts.property && state.option.inES5())) {
// Keywords that cannot follow a comma operator.
switch (state.tokens.next.value) {
case "break":
case "case":
case "catch":
case "continue":
case "default":
case "do":
case "else":
case "finally":
case "for":
case "if":
case "in":
case "instanceof":
case "return":
case "switch":
case "throw":
case "try":
case "var":
case "let":
case "while":
case "with":
error("E024", state.tokens.next, state.tokens.next.value);
return false;
}
}
if (state.tokens.next.type === "(punctuator)") {
switch (state.tokens.next.value) {
case "}":
case "]":
case ",":
if (opts.allowTrailing) {
return true;
}
/* falls through */
case ")":
error("E024", state.tokens.next, state.tokens.next.value);
return false;
}
}
return true;
}
// Functional constructors for making the symbols that will be inherited by
// tokens.
function symbol(s, p) {
var x = state.syntax[s];
if (!x || typeof x !== "object") {
state.syntax[s] = x = {
id: s,
lbp: p,
value: s
};
}
return x;
}
function delim(s) {
var x = symbol(s, 0);
x.delim = true;
return x;
}
function stmt(s, f) {
var x = delim(s);
x.identifier = x.reserved = true;
x.fud = f;
return x;
}
function blockstmt(s, f) {
var x = stmt(s, f);
x.block = true;
return x;
}
function reserveName(x) {
var c = x.id.charAt(0);
if ((c >= "a" && c <= "z") || (c >= "A" && c <= "Z")) {
x.identifier = x.reserved = true;
}
return x;
}
function prefix(s, f) {
var x = symbol(s, 150);
reserveName(x);
x.nud = (typeof f === "function") ? f : function() {
this.arity = "unary";
this.right = expression(150);
if (this.id === "++" || this.id === "--") {
if (state.option.plusplus) {
warning("W016", this, this.id);
} else if (this.right && (!this.right.identifier || isReserved(this.right)) &&
this.right.id !== "." && this.right.id !== "[") {
warning("W017", this);
}
}
return this;
};
return x;
}
function type(s, f) {
var x = delim(s);
x.type = s;
x.nud = f;
return x;
}
function reserve(name, func) {
var x = type(name, func);
x.identifier = true;
x.reserved = true;
return x;
}
function FutureReservedWord(name, meta) {
var x = type(name, (meta && meta.nud) || function() {
return this;
});
meta = meta || {};
meta.isFutureReservedWord = true;
x.value = name;
x.identifier = true;
x.reserved = true;
x.meta = meta;
return x;
}
function reservevar(s, v) {
return reserve(s, function() {
if (typeof v === "function") {
v(this);
}
return this;
});
}
function infix(s, f, p, w) {
var x = symbol(s, p);
reserveName(x);
x.infix = true;
x.led = function(left) {
if (!w) {
nobreaknonadjacent(state.tokens.prev, state.tokens.curr);
}
if (s === "in" && left.id === "!") {
warning("W018", left, "!");
}
if (typeof f === "function") {
return f(left, this);
} else {
this.left = left;
this.right = expression(p);
return this;
}
};
return x;
}
function application(s) {
var x = symbol(s, 42);
x.led = function(left) {
nobreaknonadjacent(state.tokens.prev, state.tokens.curr);
this.left = left;
this.right = doFunction({ type: "arrow", loneArg: left });
return this;
};
return x;
}
function relation(s, f) {
var x = symbol(s, 100);
x.led = function(left) {
nobreaknonadjacent(state.tokens.prev, state.tokens.curr);
var right = expression(100);
if (isIdentifier(left, "NaN") || isIdentifier(right, "NaN")) {
warning("W019", this);
} else if (f) {
f.apply(this, [left, right]);
}
if (!left || !right) {
quit("E041", state.tokens.curr.line);
}
if (left.id === "!") {
warning("W018", left, "!");
}
if (right.id === "!") {
warning("W018", right, "!");
}
this.left = left;
this.right = right;
return this;
};
return x;
}
function isPoorRelation(node) {
return node &&
((node.type === "(number)" && +node.value === 0) ||
(node.type === "(string)" && node.value === "") ||
(node.type === "null" && !state.option.eqnull) ||
node.type === "true" ||
node.type === "false" ||
node.type === "undefined");
}
// Checks whether the 'typeof' operator is used with the correct
// value. For docs on 'typeof' see:
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof
function isTypoTypeof(left, right) {
if (state.option.notypeof)
return false;
if (!left || !right)
return false;
var values = [
"undefined", "object", "boolean", "number",
"string", "function", "xml", "object", "unknown"
];
if (right.type === "(identifier)" && right.value === "typeof" && left.type === "(string)")
return !_.contains(values, left.value);
return false;
}
function isGlobalEval(left, state, funct) {
var isGlobal = false;
// permit methods to refer to an "eval" key in their own context
if (left.type === "this" && funct["(context)"] === null) {
isGlobal = true;
}
// permit use of "eval" members of objects
else if (left.type === "(identifier)") {
if (state.option.node && left.value === "global") {
isGlobal = true;
}
else if (state.option.browser && (left.value === "window" || left.value === "document")) {
isGlobal = true;
}
}
return isGlobal;
}
function findNativePrototype(left) {
var natives = [
"Array", "ArrayBuffer", "Boolean", "Collator", "DataView", "Date",
"DateTimeFormat", "Error", "EvalError", "Float32Array", "Float64Array",
"Function", "Infinity", "Intl", "Int16Array", "Int32Array", "Int8Array",
"Iterator", "Number", "NumberFormat", "Object", "RangeError",
"ReferenceError", "RegExp", "StopIteration", "String", "SyntaxError",
"TypeError", "Uint16Array", "Uint32Array", "Uint8Array", "Uint8ClampedArray",
"URIError"
];
function walkPrototype(obj) {
if (typeof obj !== "object") return;
return obj.right === "prototype" ? obj : walkPrototype(obj.left);
}
function walkNative(obj) {
while (!obj.identifier && typeof obj.left === "object")
obj = obj.left;
if (obj.identifier && natives.indexOf(obj.value) >= 0)
return obj.value;
}
var prototype = walkPrototype(left);
if (prototype) return walkNative(prototype);
}
function assignop(s, f, p) {
var x = infix(s, typeof f === "function" ? f : function(left, that) {
that.left = left;
if (left) {
if (state.option.freeze) {
var nativeObject = findNativePrototype(left);
if (nativeObject)
warning("W121", left, nativeObject);
}
if (predefined[left.value] === false &&
scope[left.value]["(global)"] === true) {
warning("W020", left);
} else if (left["function"]) {
warning("W021", left, left.value);
}
if (funct[left.value] === "const") {
error("E013", left, left.value);
}
if (left.id === ".") {
if (!left.left) {
warning("E031", that);
} else if (left.left.value === "arguments" && !state.directive["use strict"]) {
warning("E031", that);
}
state.nameStack.set(state.tokens.prev);
that.right = expression(10);
return that;
} else if (left.id === "[") {
if (state.tokens.curr.left.first) {
state.tokens.curr.left.first.forEach(function(t) {
if (t && funct[t.value] === "const") {
error("E013", t, t.value);
}
});
} else if (!left.left) {
warning("E031", that);
} else if (left.left.value === "arguments" && !state.directive["use strict"]) {
warning("E031", that);
}
state.nameStack.set(left.right);
that.right = expression(10);
return that;
} else if (left.identifier && !isReserved(left)) {
if (funct[left.value] === "exception") {
warning("W022", left);
}
state.nameStack.set(left);
that.right = expression(10);
return that;
}
if (left === state.syntax["function"]) {
warning("W023", state.tokens.curr);
}
}
error("E031", that);
}, p);
x.exps = true;
x.assign = true;
return x;
}
function bitwise(s, f, p) {
var x = symbol(s, p);
reserveName(x);
x.led = (typeof f === "function") ? f : function(left) {
if (state.option.bitwise) {
warning("W016", this, this.id);
}
this.left = left;
this.right = expression(p);
return this;
};
return x;
}
function bitwiseassignop(s) {
return assignop(s, function(left, that) {
if (state.option.bitwise) {
warning("W016", that, that.id);
}
if (left) {
if (left.id === "." || left.id === "[" ||
(left.identifier && !isReserved(left))) {
expression(10);
return that;
}
if (left === state.syntax["function"]) {
warning("W023", state.tokens.curr);
}
return that;
}
error("E031", that);
}, 20);
}
function suffix(s) {
var x = symbol(s, 150);
x.led = function(left) {
if (state.option.plusplus) {
warning("W016", this, this.id);
} else if ((!left.identifier || isReserved(left)) && left.id !== "." && left.id !== "[") {
warning("W017", this);
}
this.left = left;
return this;
};
return x;
}
// fnparam means that this identifier is being defined as a function
// argument (see identifier())
// prop means that this identifier is that of an object property
function optionalidentifier(fnparam, prop, preserve) {
if (!state.tokens.next.identifier) {
return;
}
if (!preserve) {
advance();
}
var curr = state.tokens.curr;
var val = state.tokens.curr.value;
if (!isReserved(curr)) {
return val;
}
if (prop) {
if (state.option.inES5()) {
return val;
}
}
if (fnparam && val === "undefined") {
return val;
}
warning("W024", state.tokens.curr, state.tokens.curr.id);
return val;
}
// fnparam means that this identifier is being defined as a function
// argument
// prop means that this identifier is that of an object property
function identifier(fnparam, prop) {
var i = optionalidentifier(fnparam, prop, false);
if (i) {
return i;
}
// parameter destructuring with rest operator
if (state.tokens.next.value === "...") {
if (!state.option.esnext) {
warning("W119", state.tokens.next, "spread/rest operator");
}
} else {
error("E030", state.tokens.next, state.tokens.next.value);
// The token should be consumed after a warning is issued so the parser
// can continue as though an identifier were found. The semicolon token
// should not be consumed in this way so that the parser interprets it as
// a statement delimeter;
if (state.tokens.next.id !== ";") {
advance();
}
}
}
function reachable(controlToken) {
var i = 0, t;
if (state.tokens.next.id !== ";" || controlToken.inBracelessBlock) {
return;
}
for (;;) {
do {
t = peek(i);
i += 1;
} while (t.id != "(end)" && t.id === "(comment)");
if (t.reach) {
return;
}
if (t.id !== "(endline)") {
if (t.id === "function") {
if (state.option.latedef === true) {
warning("W026", t);
}
break;
}
warning("W027", t, t.value, controlToken.value);
break;
}
}
}
function parseFinalSemicolon() {
if (state.tokens.next.id !== ";") {
// don't complain about unclosed templates / strings
if (state.tokens.next.isUnclosed) return advance();
if (!state.option.asi) {
// If this is the last statement in a block that ends on
// the same line *and* option lastsemic is on, ignore the warning.
// Otherwise, complain about missing semicolon.
if (!state.option.lastsemic || state.tokens.next.id !== "}" ||
startLine(state.tokens.next) !== state.tokens.curr.line) {
warningAt("W033", state.tokens.curr.line, state.tokens.curr.character);
}
}
} else {
advance(";");
}
}
function statement() {
var i = indent, r, s = scope, t = state.tokens.next;
if (t.id === ";") {
advance(";");
return;
}
// Is this a labelled statement?
var res = isReserved(t);
// We're being more tolerant here: if someone uses
// a FutureReservedWord as a label, we warn but proceed
// anyway.
if (res && t.meta && t.meta.isFutureReservedWord && peek().id === ":") {
warning("W024", t, t.id);
res = false;
}
// detect a module import declaration
if (t.value === "module" && t.type === "(identifier)") {
if (peek().type === "(identifier)") {
if (!state.option.inESNext()) {
warning("W119", state.tokens.curr, "module");
}
advance("module");
var name = identifier();
addlabel(name, { type: "unused", token: state.tokens.curr });
advance("from");
advance("(string)");
parseFinalSemicolon();
return;
}
}
if (t.identifier && !res && peek().id === ":") {
advance();
advance(":");
scope = Object.create(s);
addlabel(t.value, { type: "label" });
if (!state.tokens.next.labelled && state.tokens.next.value !== "{") {
warning("W028", state.tokens.next, t.value, state.tokens.next.value);
}
state.tokens.next.label = t.value;
t = state.tokens.next;
}
// Is it a lonely block?
if (t.id === "{") {
// Is it a switch case block?
//
// switch (foo) {
// case bar: { <= here.
// ...
// }
// }
var iscase = (funct["(verb)"] === "case" && state.tokens.curr.value === ":");
block(true, true, false, false, iscase);
return;
}
// Parse the statement.
r = expression(0, true);
if (r && (!r.identifier || r.value !== "function") && (r.type !== "(punctuator)")) {
if (!state.directive["use strict"] &&
state.option.globalstrict &&
state.option.strict) {
warning("E007");
}
}
// Look for the final semicolon.
if (!t.block) {
if (!state.option.expr && (!r || !r.exps)) {
warning("W030", state.tokens.curr);
} else if (state.option.nonew && r && r.left && r.id === "(" && r.left.id === "new") {
warning("W031", t);
}
parseFinalSemicolon();
}
// Restore the indentation.
indent = i;
scope = s;
return r;
}
function statements() {
var a = [], p;
while (!state.tokens.next.reach && state.tokens.next.id !== "(end)") {
if (state.tokens.next.id === ";") {
p = peek();
if (!p || (p.id !== "(" && p.id !== "[")) {
warning("W032");
}
advance(";");
} else {
a.push(statement());
}
}
return a;
}
/*
* read all directives
* recognizes a simple form of asi, but always
* warns, if it is used
*/
function directives() {
var i, p, pn;
while (state.tokens.next.id === "(string)") {
p = peek(0);
if (p.id === "(endline)") {
i = 1;
do {
pn = peek(i++);
} while (pn.id === "(endline)");
if (pn.id === ";") {
p = pn;
} else if (pn.value === "[" || pn.value === ".") {
// string -> [ | . is a valid production
return;
} else if (!state.option.asi || pn.value === "(") {
// string -> ( is not a valid production
warning("W033", state.tokens.next);
}
} else if (p.id === "." || p.id === "[") {
return;
} else if (p.id !== ";") {
warning("W033", p);
}
advance();
if (state.directive[state.tokens.curr.value]) {
warning("W034", state.tokens.curr, state.tokens.curr.value);
}
if (state.tokens.curr.value === "use strict") {
if (!state.option["(explicitNewcap)"]) {
state.option.newcap = true;
}
state.option.undef = true;
}
// there's no directive negation, so always set to true
state.directive[state.tokens.curr.value] = true;
if (p.id === ";") {
advance(";");
}
}
}
/*
* Parses a single block. A block is a sequence of statements wrapped in
* braces.
*
* ordinary - true for everything but function bodies and try blocks.
* stmt - true if block can be a single statement (e.g. in if/for/while).
* isfunc - true if block is a function body
* isfatarrow - true if its a body of a fat arrow function
* iscase - true if block is a switch case block
*/
function block(ordinary, stmt, isfunc, isfatarrow, iscase) {
var a,
b = inblock,
old_indent = indent,
m,
s = scope,
t,
line,
d;
inblock = ordinary;
if (!ordinary || !state.option.funcscope)
scope = Object.create(scope);
t = state.tokens.next;
var metrics = funct["(metrics)"];
metrics.nestedBlockDepth += 1;
metrics.verifyMaxNestedBlockDepthPerFunction();
if (state.tokens.next.id === "{") {
advance("{");
// create a new block scope
funct["(blockscope)"].stack();
line = state.tokens.curr.line;
if (state.tokens.next.id !== "}") {
indent += state.option.indent;
while (!ordinary && state.tokens.next.from > indent) {
indent += state.option.indent;
}
if (isfunc) {
m = {};
for (d in state.directive) {
if (_.has(state.directive, d)) {
m[d] = state.directive[d];
}
}
directives();
if (state.option.strict && funct["(context)"]["(global)"]) {
if (!m["use strict"] && !state.directive["use strict"]) {
warning("E007");
}
}
}
a = statements();
metrics.statementCount += a.length;
if (isfunc) {
state.directive = m;
}
indent -= state.option.indent;
}
advance("}", t);
funct["(blockscope)"].unstack();
indent = old_indent;
} else if (!ordinary) {
if (isfunc) {
m = {};
if (stmt && !isfatarrow && !state.option.inMoz(true)) {
error("W118", state.tokens.curr, "function closure expressions");
}
if (!stmt) {
for (d in state.directive) {
if (_.has(state.directive, d)) {
m[d] = state.directive[d];
}
}
}
expression(10);
if (state.option.strict && funct["(context)"]["(global)"]) {
if (!m["use strict"] && !state.directive["use strict"]) {
warning("E007");
}
}
} else {
error("E021", state.tokens.next, "{", state.tokens.next.value);
}
} else {
// check to avoid let declaration not within a block
funct["(nolet)"] = true;
if (!stmt || state.option.curly) {
warning("W116", state.tokens.next, "{", state.tokens.next.value);
}
state.tokens.next.inBracelessBlock = true;
indent += state.option.indent;
// test indentation only if statement is in new line
a = [statement()];
indent -= state.option.indent;
delete funct["(nolet)"];
}
// Don't clear and let it propagate out if it is "break", "return" or similar in switch case
switch (funct["(verb)"]) {
case "break":
case "continue":
case "return":
case "throw":
if (iscase) {
break;
}
/* falls through */
default:
funct["(verb)"] = null;
}
if (!ordinary || !state.option.funcscope) scope = s;
inblock = b;
if (ordinary && state.option.noempty && (!a || a.length === 0)) {
warning("W035", state.tokens.prev);
}
metrics.nestedBlockDepth -= 1;
return a;
}
function countMember(m) {
if (membersOnly && typeof membersOnly[m] !== "boolean") {
warning("W036", state.tokens.curr, m);
}
if (typeof member[m] === "number") {
member[m] += 1;
} else {
member[m] = 1;
}
}
function note_implied(tkn) {
var name = tkn.value;
var desc = Object.getOwnPropertyDescriptor(implied, name);
if (!desc)
implied[name] = [tkn.line];
else
desc.value.push(tkn.line);
}
// Build the syntax table by declaring the syntactic elements of the language.
type("(number)", function() {
return this;
});
type("(string)", function() {
return this;
});
state.syntax["(identifier)"] = {
type: "(identifier)",
lbp: 0,
identifier: true,
nud: function() {
var v = this.value;
var s = scope[v];
var f;
var block;
// If this identifier is the lone parameter to a shorthand "fat arrow"
// function definition, i.e.
//
// x => x;
//
// ...it should not be considered as a variable in the current scope. It
// will be added to the scope of the new function when the next token is
// parsed, so it can be safely ignored for now.
if (state.tokens.next.id === "=>") {
return this;
}
if (typeof s === "function") {
// Protection against accidental inheritance.
s = undefined;
} else if (!funct["(blockscope)"].current.has(v) && typeof s === "boolean") {
f = funct;
funct = functions[0];
addlabel(v, { type: "var" });
s = funct;
funct = f;
}
block = funct["(blockscope)"].getlabel(v);
// The name is in scope and defined in the current function.
if (funct === s || block) {
// Change 'unused' to 'var', and reject labels.
// the name is in a block scope.
switch (block ? block[v]["(type)"] : funct[v]) {
case "unused":
if (block) block[v]["(type)"] = "var";
else funct[v] = "var";
break;
case "unction":
if (block) block[v]["(type)"] = "function";
else funct[v] = "function";
this["function"] = true;
break;
case "const":
setprop(funct, v, { unused: false });
break;
case "function":
this["function"] = true;
break;
case "label":
warning("W037", state.tokens.curr, v);
break;
}
} else {
// If the name is already defined in the current
// function, but not as outer, then there is a scope error.
switch (funct[v]) {
case "closure":
case "function":
case "var":
case "unused":
warning("W038", state.tokens.curr, v);
break;
case "label":
warning("W037", state.tokens.curr, v);
break;
case "outer":
case "global":
break;
default:
// If the name is defined in an outer function, make an outer entry,
// and if it was unused, make it var.
if (s === true) {
funct[v] = true;
} else if (s === null) {
warning("W039", state.tokens.curr, v);
note_implied(state.tokens.curr);
} else if (typeof s !== "object") {
// if we're in a list comprehension, variables are declared
// locally and used before being defined. So we check
// the presence of the given variable in the comp array
// before declaring it undefined.
if (!funct["(comparray)"].check(v)) {
isundef(funct, "W117", state.tokens.curr, v);
}
// Explicitly mark the variable as used within function scopes
if (!funct["(global)"]) {
funct[v] = true;
}
note_implied(state.tokens.curr);
} else {
switch (s[v]) {
case "function":
case "unction":
this["function"] = true;
s[v] = "closure";
funct[v] = s["(global)"] ? "global" : "outer";
break;
case "var":
case "unused":
s[v] = "closure";
funct[v] = s["(global)"] ? "global" : "outer";
break;
case "const":
setprop(s, v, { unused: false });
break;
case "closure":
funct[v] = s["(global)"] ? "global" : "outer";
break;
case "label":
warning("W037", state.tokens.curr, v);
}
}
}
}
return this;
},
led: function() {
error("E033", state.tokens.next, state.tokens.next.value);
}
};
var baseTemplateSyntax = {
lbp: 0,
identifier: false,
template: true,
};
state.syntax["(template)"] = _.extend({
type: "(template)",
nud: doTemplateLiteral,
led: doTemplateLiteral,
noSubst: false
}, baseTemplateSyntax);
state.syntax["(template middle)"] = _.extend({
type: "(template middle)",
middle: true,
noSubst: false
}, baseTemplateSyntax);
state.syntax["(template tail)"] = _.extend({
type: "(template tail)",
tail: true,
noSubst: false
}, baseTemplateSyntax);
state.syntax["(no subst template)"] = _.extend({
type: "(template)",
nud: doTemplateLiteral,
led: doTemplateLiteral,
noSubst: true,
tail: true // mark as tail, since it's always the last component
}, baseTemplateSyntax);
type("(regexp)", function() {
return this;
});
// ECMAScript parser
delim("(endline)");
delim("(begin)");
delim("(end)").reach = true;
delim("(error)").reach = true;
delim("}").reach = true;
delim(")");
delim("]");
delim("\"").reach = true;
delim("'").reach = true;
delim(";");
delim(":").reach = true;
delim("#");
reserve("else");
reserve("case").reach = true;
reserve("catch");
reserve("default").reach = true;
reserve("finally");
reservevar("arguments", function(x) {
if (state.directive["use strict"] && funct["(global)"]) {
warning("E008", x);
}
});
reservevar("eval");
reservevar("false");
reservevar("Infinity");
reservevar("null");
reservevar("this", function(x) {
if (state.directive["use strict"] && !isMethod() &&
!state.option.validthis && ((funct["(statement)"] &&
funct["(name)"].charAt(0) > "Z") || funct["(global)"])) {
warning("W040", x);
}
});
reservevar("true");
reservevar("undefined");
assignop("=", "assign", 20);
assignop("+=", "assignadd", 20);
assignop("-=", "assignsub", 20);
assignop("*=", "assignmult", 20);
assignop("/=", "assigndiv", 20).nud = function() {
error("E014");
};
assignop("%=", "assignmod", 20);
bitwiseassignop("&=");
bitwiseassignop("|=");
bitwiseassignop("^=");
bitwiseassignop("<<=");
bitwiseassignop(">>=");
bitwiseassignop(">>>=");
infix(",", function(left, that) {
var expr;
that.exprs = [left];
if (state.option.nocomma) {
warning("W127");
}
if (!comma({ peek: true })) {
return that;
}
while (true) {
if (!(expr = expression(10))) {
break;
}
that.exprs.push(expr);
if (state.tokens.next.value !== "," || !comma()) {
break;
}
}
return that;
}, 10, true);
infix("?", function(left, that) {
increaseComplexityCount();
that.left = left;
that.right = expression(10);
advance(":");
that["else"] = expression(10);
return that;
}, 30);
var orPrecendence = 40;
infix("||", function(left, that) {
increaseComplexityCount();
that.left = left;
that.right = expression(orPrecendence);
return that;
}, orPrecendence);
infix("&&", "and", 50);
bitwise("|", "bitor", 70);
bitwise("^", "bitxor", 80);
bitwise("&", "bitand", 90);
relation("==", function(left, right) {
var eqnull = state.option.eqnull && (left.value === "null" || right.value === "null");
switch (true) {
case !eqnull && state.option.eqeqeq:
this.from = this.character;
warning("W116", this, "===", "==");
break;
case isPoorRelation(left):
warning("W041", this, "===", left.value);
break;
case isPoorRelation(right):
warning("W041", this, "===", right.value);
break;
case isTypoTypeof(right, left):
warning("W122", this, right.value);
break;
case isTypoTypeof(left, right):
warning("W122", this, left.value);
break;
}
return this;
});
relation("===", function(left, right) {
if (isTypoTypeof(right, left)) {
warning("W122", this, right.value);
} else if (isTypoTypeof(left, right)) {
warning("W122", this, left.value);
}
return this;
});
relation("!=", function(left, right) {
var eqnull = state.option.eqnull &&
(left.value === "null" || right.value === "null");
if (!eqnull && state.option.eqeqeq) {
this.from = this.character;
warning("W116", this, "!==", "!=");
} else if (isPoorRelation(left)) {
warning("W041", this, "!==", left.value);
} else if (isPoorRelation(right)) {
warning("W041", this, "!==", right.value);
} else if (isTypoTypeof(right, left)) {
warning("W122", this, right.value);
} else if (isTypoTypeof(left, right)) {
warning("W122", this, left.value);
}
return this;
});
relation("!==", function(left, right) {
if (isTypoTypeof(right, left)) {
warning("W122", this, right.value);
} else if (isTypoTypeof(left, right)) {
warning("W122", this, left.value);
}
return this;
});
relation("<");
relation(">");
relation("<=");
relation(">=");
bitwise("<<", "shiftleft", 120);
bitwise(">>", "shiftright", 120);
bitwise(">>>", "shiftrightunsigned", 120);
infix("in", "in", 120);
infix("instanceof", "instanceof", 120);
infix("+", function(left, that) {
var right;
that.left = left;
that.right = right = expression(130);
if (left && right && left.id === "(string)" && right.id === "(string)") {
left.value += right.value;
left.character = right.character;
if (!state.option.scripturl && reg.javascriptURL.test(left.value)) {
warning("W050", left);
}
return left;
}
return that;
}, 130);
prefix("+", "num");
prefix("+++", function() {
warning("W007");
this.arity = "unary";
this.right = expression(150);
return this;
});
infix("+++", function(left) {
warning("W007");
this.left = left;
this.right = expression(130);
return this;
}, 130);
infix("-", "sub", 130);
prefix("-", "neg");
prefix("---", function() {
warning("W006");
this.arity = "unary";
this.right = expression(150);
return this;
});
infix("---", function(left) {
warning("W006");
this.left = left;
this.right = expression(130);
return this;
}, 130);
infix("*", "mult", 140);
infix("/", "div", 140);
infix("%", "mod", 140);
suffix("++");
prefix("++", "preinc");
state.syntax["++"].exps = true;
suffix("--");
prefix("--", "predec");
state.syntax["--"].exps = true;
prefix("delete", function() {
var p = expression(10);
if (!p) {
return this;
}
if (p.id !== "." && p.id !== "[") {
warning("W051");
}
this.first = p;
// The `delete` operator accepts unresolvable references when not in strict
// mode, so the operand may be undefined.
if (p.identifier && !state.directive["use strict"]) {
p.forgiveUndef = true;
}
return this;
}).exps = true;
prefix("~", function() {
if (state.option.bitwise) {
warning("W016", this, "~");
}
this.arity = "unary";
expression(150);
return this;
});
prefix("...", function() {
if (!state.option.esnext) {
warning("W119", this, "spread/rest operator");
}
// TODO: Allow all AssignmentExpression
// once parsing permits.
//
// How to handle eg. number, boolean when the built-in
// prototype of may have an @@iterator definition?
//
// Number.prototype[Symbol.iterator] = function * () {
// yield this.valueOf();
// };
//
// var a = [ ...1 ];
// console.log(a); // [1];
//
// for (let n of [...10]) {
// console.log(n);
// }
// // 10
//
//
// Boolean.prototype[Symbol.iterator] = function * () {
// yield this.valueOf();
// };
//
// var a = [ ...true ];
// console.log(a); // [true];
//
// for (let n of [...false]) {
// console.log(n);
// }
// // false
//
if (!state.tokens.next.identifier &&
state.tokens.next.type !== "(string)" &&
!checkPunctuators(state.tokens.next, ["[", "("])) {
error("E030", state.tokens.next, state.tokens.next.value);
}
expression(150);
return this;
});
prefix("!", function() {
this.arity = "unary";
this.right = expression(150);
if (!this.right) { // '!' followed by nothing? Give up.
quit("E041", this.line || 0);
}
if (bang[this.right.id] === true) {
warning("W018", this, "!");
}
return this;
});
prefix("typeof", (function() {
var p = expression(150);
this.first = p;
// The `typeof` operator accepts unresolvable references, so the operand
// may be undefined.
if (p.identifier) {
p.forgiveUndef = true;
}
return this;
}));
prefix("new", function() {
var c = expression(155), i;
if (c && c.id !== "function") {
if (c.identifier) {
c["new"] = true;
switch (c.value) {
case "Number":
case "String":
case "Boolean":
case "Math":
case "JSON":
warning("W053", state.tokens.prev, c.value);
break;
case "Symbol":
if (state.option.esnext) {
warning("W053", state.tokens.prev, c.value);
}
break;
case "Function":
if (!state.option.evil) {
warning("W054");
}
break;
case "Date":
case "RegExp":
case "this":
break;
default:
if (c.id !== "function") {
i = c.value.substr(0, 1);
if (state.option.newcap && (i < "A" || i > "Z") && !_.has(global, c.value)) {
warning("W055", state.tokens.curr);
}
}
}
} else {
if (c.id !== "." && c.id !== "[" && c.id !== "(") {
warning("W056", state.tokens.curr);
}
}
} else {
if (!state.option.supernew)
warning("W057", this);
}
if (state.tokens.next.id !== "(" && !state.option.supernew) {
warning("W058", state.tokens.curr, state.tokens.curr.value);
}
this.first = c;
return this;
});
state.syntax["new"].exps = true;
prefix("void").exps = true;
infix(".", function(left, that) {
var m = identifier(false, true);
if (typeof m === "string") {
countMember(m);
}
that.left = left;
that.right = m;
if (m && m === "hasOwnProperty" && state.tokens.next.value === "=") {
warning("W001");
}
if (left && left.value === "arguments" && (m === "callee" || m === "caller")) {
if (state.option.noarg)
warning("W059", left, m);
else if (state.directive["use strict"])
error("E008");
} else if (!state.option.evil && left && left.value === "document" &&
(m === "write" || m === "writeln")) {
warning("W060", left);
}
if (!state.option.evil && (m === "eval" || m === "execScript")) {
if (isGlobalEval(left, state, funct)) {
warning("W061");
}
}
return that;
}, 160, true);
infix("(", function(left, that) {
if (state.option.immed && left && !left.immed && left.id === "function") {
warning("W062");
}
var n = 0;
var p = [];
if (left) {
if (left.type === "(identifier)") {
if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) {
if ("Number String Boolean Date Object Error Symbol".indexOf(left.value) === -1) {
if (left.value === "Math") {
warning("W063", left);
} else if (state.option.newcap) {
warning("W064", left);
}
}
}
}
}
if (state.tokens.next.id !== ")") {
for (;;) {
p[p.length] = expression(10);
n += 1;
if (state.tokens.next.id !== ",") {
break;
}
comma();
}
}
advance(")");
if (typeof left === "object") {
if (state.option.inES3() && left.value === "parseInt" && n === 1) {
warning("W065", state.tokens.curr);
}
if (!state.option.evil) {
if (left.value === "eval" || left.value === "Function" ||
left.value === "execScript") {
warning("W061", left);
if (p[0] && [0].id === "(string)") {
addInternalSrc(left, p[0].value);
}
} else if (p[0] && p[0].id === "(string)" &&
(left.value === "setTimeout" ||
left.value === "setInterval")) {
warning("W066", left);
addInternalSrc(left, p[0].value);
// window.setTimeout/setInterval
} else if (p[0] && p[0].id === "(string)" &&
left.value === "." &&
left.left.value === "window" &&
(left.right === "setTimeout" ||
left.right === "setInterval")) {
warning("W066", left);
addInternalSrc(left, p[0].value);
}
}
if (!left.identifier && left.id !== "." && left.id !== "[" &&
left.id !== "(" && left.id !== "&&" && left.id !== "||" &&
left.id !== "?" && !(state.option.esnext && left["(name)"])) {
warning("W067", that);
}
}
that.left = left;
return that;
}, 155, true).exps = true;
prefix("(", function() {
var pn = state.tokens.next, pn1, i = -1;
var ret, triggerFnExpr, first, last;
var parens = 1;
var opening = state.tokens.curr;
var preceeding = state.tokens.prev;
var isNecessary = !state.option.singleGroups;
do {
if (pn.value === "(") {
parens += 1;
} else if (pn.value === ")") {
parens -= 1;
}
i += 1;
pn1 = pn;
pn = peek(i);
} while (!(parens === 0 && pn1.value === ")") && pn.value !== ";" && pn.type !== "(end)");
if (state.tokens.next.id === "function") {
triggerFnExpr = state.tokens.next.immed = true;
}
// If the balanced grouping operator is followed by a "fat arrow", the
// current token marks the beginning of a "fat arrow" function and parsing
// should proceed accordingly.
if (pn.value === "=>") {
return doFunction({ type: "arrow", parsedOpening: true });
}
var exprs = [];
if (state.tokens.next.id !== ")") {
for (;;) {
exprs.push(expression(10));
if (state.tokens.next.id !== ",") {
break;
}
if (state.option.nocomma) {
warning("W127");
}
comma();
}
}
advance(")", this);
if (state.option.immed && exprs[0] && exprs[0].id === "function") {
if (state.tokens.next.id !== "(" &&
state.tokens.next.id !== "." && state.tokens.next.id !== "[") {
warning("W068", this);
}
}
if (!exprs.length) {
return;
}
if (exprs.length > 1) {
ret = Object.create(state.syntax[","]);
ret.exprs = exprs;
first = exprs[0];
last = exprs[exprs.length - 1];
if (!isNecessary) {
isNecessary = preceeding.assign || preceeding.delim;
}
} else {
ret = first = last = exprs[0];
if (!isNecessary) {
isNecessary =
// Used to distinguish from an ExpressionStatement which may not
// begin with the `{` and `function` tokens
(opening.beginsStmt && (ret.id === "{" || triggerFnExpr || isFunctor(ret))) ||
// Used as the return value of a single-statement arrow function
(ret.id === "{" && preceeding.id === "=>") ||
// Used to prevent left-to-right application of adjacent addition
// operators (the order of which effect type)
(first.id === "+" && preceeding.id === "+");
}
}
if (ret) {
// The operator may be necessary to override the default binding power of
// neighboring operators (whenever there is an operator in use within the
// first expression *or* the current group contains multiple expressions)
if (!isNecessary && (first.left || ret.exprs)) {
isNecessary =
(!isBeginOfExpr(preceeding) && first.lbp < preceeding.lbp) ||
(!isEndOfExpr() && last.lbp < state.tokens.next.lbp);
}
if (!isNecessary) {
warning("W126", opening);
}
ret.paren = true;
}
return ret;
});
application("=>");
infix("[", function(left, that) {
var e = expression(10), s;
if (e && e.type === "(string)") {
if (!state.option.evil && (e.value === "eval" || e.value === "execScript")) {
if (isGlobalEval(left, state, funct)) {
warning("W061");
}
}
countMember(e.value);
if (!state.option.sub && reg.identifier.test(e.value)) {
s = state.syntax[e.value];
if (!s || !isReserved(s)) {
warning("W069", state.tokens.prev, e.value);
}
}
}
advance("]", that);
if (e && e.value === "hasOwnProperty" && state.tokens.next.value === "=") {
warning("W001");
}
that.left = left;
that.right = e;
return that;
}, 160, true);
function comprehensiveArrayExpression() {
var res = {};
res.exps = true;
funct["(comparray)"].stack();
// Handle reversed for expressions, used in spidermonkey
var reversed = false;
if (state.tokens.next.value !== "for") {
reversed = true;
if (!state.option.inMoz(true)) {
warning("W116", state.tokens.next, "for", state.tokens.next.value);
}
funct["(comparray)"].setState("use");
res.right = expression(10);
}
advance("for");
if (state.tokens.next.value === "each") {
advance("each");
if (!state.option.inMoz(true)) {
warning("W118", state.tokens.curr, "for each");
}
}
advance("(");
funct["(comparray)"].setState("define");
res.left = expression(130);
if (_.contains(["in", "of"], state.tokens.next.value)) {
advance();
} else {
error("E045", state.tokens.curr);
}
funct["(comparray)"].setState("generate");
expression(10);
advance(")");
if (state.tokens.next.value === "if") {
advance("if");
advance("(");
funct["(comparray)"].setState("filter");
res.filter = expression(10);
advance(")");
}
if (!reversed) {
funct["(comparray)"].setState("use");
res.right = expression(10);
}
advance("]");
funct["(comparray)"].unstack();
return res;
}
prefix("[", function() {
var blocktype = lookupBlockType();
if (blocktype.isCompArray) {
if (!state.option.inESNext()) {
warning("W119", state.tokens.curr, "array comprehension");
}
return comprehensiveArrayExpression();
} else if (blocktype.isDestAssign && !state.option.inESNext()) {
warning("W104", state.tokens.curr, "destructuring assignment");
}
var b = state.tokens.curr.line !== startLine(state.tokens.next);
this.first = [];
if (b) {
indent += state.option.indent;
if (state.tokens.next.from === indent + state.option.indent) {
indent += state.option.indent;
}
}
while (state.tokens.next.id !== "(end)") {
while (state.tokens.next.id === ",") {
if (!state.option.elision) {
if (!state.option.inES5()) {
// Maintain compat with old options --- ES5 mode without
// elision=true will warn once per comma
warning("W070");
} else {
warning("W128");
do {
advance(",");
} while (state.tokens.next.id === ",");
continue;
}
}
advance(",");
}
if (state.tokens.next.id === "]") {
break;
}
this.first.push(expression(10));
if (state.tokens.next.id === ",") {
comma({ allowTrailing: true });
if (state.tokens.next.id === "]" && !state.option.inES5(true)) {
warning("W070", state.tokens.curr);
break;
}
} else {
break;
}
}
if (b) {
indent -= state.option.indent;
}
advance("]", this);
return this;
});
function isMethod() {
return funct["(statement)"] && funct["(statement)"].type === "class" ||
funct["(context)"] && funct["(context)"]["(verb)"] === "class";
}
function isPropertyName(token) {
return token.identifier || token.id === "(string)" || token.id === "(number)";
}
function propertyName(preserveOrToken) {
var id;
var preserve = true;
if (typeof preserveOrToken === "object") {
id = preserveOrToken;
} else {
preserve = preserveOrToken;
id = optionalidentifier(false, true, preserve);
}
if (!id) {
if (state.tokens.next.id === "(string)") {
id = state.tokens.next.value;
if (!preserve) {
advance();
}
} else if (state.tokens.next.id === "(number)") {
id = state.tokens.next.value.toString();
if (!preserve) {
advance();
}
}
} else if (typeof id === "object") {
if (id.id === "(string)" || id.id === "(identifier)") id = id.value;
else if (id.id === "(number)") id = id.value.toString();
}
if (id === "hasOwnProperty") {
warning("W001");
}
return id;
}
/**
* @param {Object} [options]
* @param {token} [options.loneArg] The argument to the function in cases
* where it was defined using the
* single-argument shorthand.
* @param {bool} [options.parsedOpening] Whether the opening parenthesis has
* already been parsed.
*/
function functionparams(options) {
var next;
var params = [];
var ident;
var tokens = [];
var t;
var pastDefault = false;
var loneArg = options && options.loneArg;
if (loneArg && loneArg.identifier === true) {
addlabel(loneArg.value, { type: "unused", token: loneArg });
return [loneArg];
}
next = state.tokens.next;
if (!options || !options.parsedOpening) {
advance("(");
}
if (state.tokens.next.id === ")") {
advance(")");
return;
}
for (;;) {
if (_.contains(["{", "["], state.tokens.next.id)) {
tokens = destructuringExpression();
for (t in tokens) {
t = tokens[t];
if (t.id) {
params.push(t.id);
addlabel(t.id, { type: "unused", token: t.token });
}
}
} else if (state.tokens.next.value === "...") {
if (!state.option.esnext) {
warning("W119", state.tokens.next, "spread/rest operator");
}
advance("...");
ident = identifier(true);
params.push(ident);
addlabel(ident, { type: "unused", token: state.tokens.curr });
} else {
ident = identifier(true);
params.push(ident);
addlabel(ident, { type: "unused", token: state.tokens.curr });
}
// it is a syntax error to have a regular argument after a default argument
if (pastDefault) {
if (state.tokens.next.id !== "=") {
error("E051", state.tokens.current);
}
}
if (state.tokens.next.id === "=") {
if (!state.option.inESNext()) {
warning("W119", state.tokens.next, "default parameters");
}
advance("=");
pastDefault = true;
expression(10);
}
if (state.tokens.next.id === ",") {
comma();
} else {
advance(")", next);
return params;
}
}
}
function setprop(funct, name, values) {
if (!funct["(properties)"][name]) {
funct["(properties)"][name] = { unused: false };
}
_.extend(funct["(properties)"][name], values);
}
function getprop(funct, name, prop) {
if (!funct["(properties)"][name])
return null;
return funct["(properties)"][name][prop] || null;
}
function functor(name, token, scope, overwrites) {
var funct = {
"(name)" : name,
"(breakage)" : 0,
"(loopage)" : 0,
"(scope)" : scope,
"(tokens)" : {},
"(properties)": {},
"(catch)" : false,
"(global)" : false,
"(line)" : null,
"(character)" : null,
"(metrics)" : null,
"(statement)" : null,
"(context)" : null,
"(blockscope)": null,
"(comparray)" : null,
"(generator)" : null,
"(params)" : null
};
if (token) {
_.extend(funct, {
"(line)" : token.line,
"(character)": token.character,
"(metrics)" : createMetrics(token)
});
}
_.extend(funct, overwrites);
if (funct["(context)"]) {
funct["(blockscope)"] = funct["(context)"]["(blockscope)"];
funct["(comparray)"] = funct["(context)"]["(comparray)"];
}
return funct;
}
function isFunctor(token) {
return "(scope)" in token;
}
function doTemplateLiteral(left) {
// ASSERT: this.type === "(template)"
// jshint validthis: true
var ctx = this.context;
var noSubst = this.noSubst;
var depth = this.depth;
if (!noSubst) {
while (!end() && state.tokens.next.id !== "(end)") {
if (!state.tokens.next.template || state.tokens.next.depth > depth) {
expression(0); // should probably have different rbp?
} else {
// skip template start / middle
advance();
}
}
}
return {
id: "(template)",
type: "(template)",
tag: left
};
function end() {
if (state.tokens.curr.template && state.tokens.curr.tail &&
state.tokens.curr.context === ctx) return true;
var complete = (state.tokens.next.template && state.tokens.next.tail &&
state.tokens.next.context === ctx);
if (complete) advance();
return complete || state.tokens.next.isUnclosed;
}
}
/**
* @param {Object} [options]
* @param {token} [options.name] The identifier belonging to the function (if
* any)
* @param {boolean} [options.statement] The statement that triggered creation
* of the current function.
* @param {string} [options.type] If specified, either "generator" or "arrow"
* @param {token} [options.loneArg] The argument to the function in cases
* where it was defined using the
* single-argument shorthand
* @param {bool} [options.parsedOpening] Whether the opening parenthesis has
* already been parsed
* @param {token} [options.classExprBinding] Define a function with this
* identifier in the new function's
* scope, mimicking the bahavior of
* class expression names within
* the body of member functions.
*/
function doFunction(options) {
var f, name, statement, classExprBinding, isGenerator, isArrow;
var oldOption = state.option;
var oldIgnored = state.ignored;
var oldScope = scope;
if (options) {
name = options.name;
statement = options.statement;
classExprBinding = options.classExprBinding;
isGenerator = options.type === "generator";
isArrow = options.type === "arrow";
}
state.option = Object.create(state.option);
state.ignored = Object.create(state.ignored);
scope = Object.create(scope);
funct = functor(name || state.nameStack.infer(), state.tokens.next, scope, {
"(statement)": statement,
"(context)": funct,
"(generator)": isGenerator
});
f = funct;
state.tokens.curr.funct = funct;
functions.push(funct);
if (name) {
addlabel(name, { type: "function" });
}
if (classExprBinding) {
addlabel(classExprBinding, { type: "function" });
}
funct["(params)"] = functionparams(options);
funct["(metrics)"].verifyMaxParametersPerFunction(funct["(params)"]);
if (isArrow) {
if (!state.option.esnext) {
warning("W119", state.tokens.curr, "arrow function syntax (=>)");
}
if (!options.loneArg) {
advance("=>");
}
}
block(false, true, true, isArrow);
if (!state.option.noyield && isGenerator &&
funct["(generator)"] !== "yielded") {
warning("W124", state.tokens.curr);
}
funct["(metrics)"].verifyMaxStatementsPerFunction();
funct["(metrics)"].verifyMaxComplexityPerFunction();
funct["(unusedOption)"] = state.option.unused;
scope = oldScope;
state.option = oldOption;
state.ignored = oldIgnored;
funct["(last)"] = state.tokens.curr.line;
funct["(lastcharacter)"] = state.tokens.curr.character;
_.map(Object.keys(funct), function(key) {
if (key[0] === "(") return;
funct["(blockscope)"].unshadow(key);
});
funct = funct["(context)"];
return f;
}
function createMetrics(functionStartToken) {
return {
statementCount: 0,
nestedBlockDepth: -1,
ComplexityCount: 1,
verifyMaxStatementsPerFunction: function() {
if (state.option.maxstatements &&
this.statementCount > state.option.maxstatements) {
warning("W071", functionStartToken, this.statementCount);
}
},
verifyMaxParametersPerFunction: function(params) {
params = params || [];
if (state.option.maxparams && params.length > state.option.maxparams) {
warning("W072", functionStartToken, params.length);
}
},
verifyMaxNestedBlockDepthPerFunction: function() {
if (state.option.maxdepth &&
this.nestedBlockDepth > 0 &&
this.nestedBlockDepth === state.option.maxdepth + 1) {
warning("W073", null, this.nestedBlockDepth);
}
},
verifyMaxComplexityPerFunction: function() {
var max = state.option.maxcomplexity;
var cc = this.ComplexityCount;
if (max && cc > max) {
warning("W074", functionStartToken, cc);
}
}
};
}
function increaseComplexityCount() {
funct["(metrics)"].ComplexityCount += 1;
}
// Parse assignments that were found instead of conditionals.
// For example: if (a = 1) { ... }
function checkCondAssignment(expr) {
var id, paren;
if (expr) {
id = expr.id;
paren = expr.paren;
if (id === "," && (expr = expr.exprs[expr.exprs.length - 1])) {
id = expr.id;
paren = paren || expr.paren;
}
}
switch (id) {
case "=":
case "+=":
case "-=":
case "*=":
case "%=":
case "&=":
case "|=":
case "^=":
case "/=":
if (!paren && !state.option.boss) {
warning("W084");
}
}
}
/**
* @param {object} props Collection of property descriptors for a given
* object.
*/
function checkProperties(props) {
// Check for lonely setters if in the ES5 mode.
if (state.option.inES5()) {
for (var name in props) {
if (_.has(props, name) && props[name].setterToken && !props[name].getterToken) {
warning("W078", props[name].setterToken);
}
}
}
}
(function(x) {
x.nud = function() {
var b, f, i, p, t, g, nextVal;
var props = {}; // All properties, including accessors
b = state.tokens.curr.line !== startLine(state.tokens.next);
if (b) {
indent += state.option.indent;
if (state.tokens.next.from === indent + state.option.indent) {
indent += state.option.indent;
}
}
for (;;) {
if (state.tokens.next.id === "}") {
break;
}
nextVal = state.tokens.next.value;
if (peek().id !== ":" && (nextVal === "get" || nextVal === "set")) {
advance(nextVal);
if (!state.option.inES5()) {
error("E034");
}
i = propertyName();
// ES6 allows for get() {...} and set() {...} method
// definition shorthand syntax, so we don't produce an error
// if the esnext option is enabled.
if (!i && !state.option.inESNext()) {
error("E035");
}
// We don't want to save this getter unless it's an actual getter
// and not an ES6 concise method
if (i) {
saveAccessor(nextVal, props, i, state.tokens.curr);
}
t = state.tokens.next;
f = doFunction();
p = f["(params)"];
// Don't warn about getter/setter pairs if this is an ES6 concise method
if (nextVal === "get" && i && p) {
warning("W076", t, p[0], i);
} else if (nextVal === "set" && i && (!p || p.length !== 1)) {
warning("W077", t, i);
}
} else {
if (state.tokens.next.value === "*" && state.tokens.next.type === "(punctuator)") {
if (!state.option.inESNext()) {
warning("W104", state.tokens.next, "generator functions");
}
advance("*");
g = true;
}
if (state.tokens.next.identifier &&
(peekIgnoreEOL().id === "," || peekIgnoreEOL().id === "}")) {
if (!state.option.inESNext()) {
warning("W104", state.tokens.next, "object short notation");
}
i = propertyName(true);
saveProperty(props, i, state.tokens.next);
expression(10);
} else {
if (state.tokens.next.id === "[") {
i = computedPropertyName();
state.nameStack.set(i);
} else {
state.nameStack.set(state.tokens.next);
i = propertyName();
saveProperty(props, i, state.tokens.next);
if (typeof i !== "string") {
break;
}
}
if (state.tokens.next.value === "(") {
if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "concise methods");
}
doFunction({ type: g ? "generator" : null });
} else {
advance(":");
expression(10);
}
}
}
countMember(i);
if (state.tokens.next.id === ",") {
comma({ allowTrailing: true, property: true });
if (state.tokens.next.id === ",") {
warning("W070", state.tokens.curr);
} else if (state.tokens.next.id === "}" && !state.option.inES5(true)) {
warning("W070", state.tokens.curr);
}
} else {
break;
}
}
if (b) {
indent -= state.option.indent;
}
advance("}", this);
checkProperties(props);
return this;
};
x.fud = function() {
error("E036", state.tokens.curr);
};
}(delim("{")));
function destructuringExpression() {
var id, ids;
var identifiers = [];
if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "destructuring expression");
}
var nextInnerDE = function() {
var ident;
if (checkPunctuators(state.tokens.next, ["[", "{"])) {
ids = destructuringExpression();
for (var id in ids) {
id = ids[id];
identifiers.push({ id: id.id, token: id.token });
}
} else if (checkPunctuators(state.tokens.next, [","])) {
identifiers.push({ id: null, token: state.tokens.curr });
} else if (checkPunctuators(state.tokens.next, ["("])) {
advance("(");
nextInnerDE();
advance(")");
} else {
ident = identifier();
if (ident)
identifiers.push({ id: ident, token: state.tokens.curr });
}
};
if (checkPunctuators(state.tokens.next, ["["])) {
advance("[");
nextInnerDE();
while (!checkPunctuators(state.tokens.next, ["]"])) {
advance(",");
if (checkPunctuators(state.tokens.next, ["]"])) {
// Trailing commas are not allowed in ArrayBindingPattern
warning("W130", state.tokens.next);
break;
}
nextInnerDE();
}
advance("]");
} else if (checkPunctuators(state.tokens.next, ["{"])) {
advance("{");
id = identifier();
if (checkPunctuators(state.tokens.next, [":"])) {
advance(":");
nextInnerDE();
} else {
identifiers.push({ id: id, token: state.tokens.curr });
}
while (!checkPunctuators(state.tokens.next, ["}"])) {
advance(",");
if (checkPunctuators(state.tokens.next, ["}"])) {
// Trailing comma
// ObjectBindingPattern: { BindingPropertyList , }
break;
}
id = identifier();
if (checkPunctuators(state.tokens.next, [":"])) {
advance(":");
nextInnerDE();
} else {
identifiers.push({ id: id, token: state.tokens.curr });
}
}
advance("}");
}
return identifiers;
}
function destructuringExpressionMatch(tokens, value) {
var first = value.first;
if (!first)
return;
_.zip(tokens, Array.isArray(first) ? first : [ first ]).forEach(function(val) {
var token = val[0];
var value = val[1];
if (token && value)
token.first = value;
else if (token && token.first && !value)
warning("W080", token.first, token.first.value);
});
}
var conststatement = stmt("const", function(prefix) {
var tokens;
var value;
var lone; // State variable to know if it is a lone identifier, or a destructuring statement.
if (!state.option.inESNext())
warning("W104", state.tokens.curr, "const");
this.first = [];
for (;;) {
var names = [];
if (_.contains(["{", "["], state.tokens.next.value)) {
tokens = destructuringExpression();
lone = false;
} else {
tokens = [ { id: identifier(), token: state.tokens.curr } ];
lone = true;
}
for (var t in tokens) {
if (tokens.hasOwnProperty(t)) {
t = tokens[t];
if (funct[t.id] === "const") {
warning("E011", null, t.id);
}
if (funct["(global)"] && predefined[t.id] === false) {
warning("W079", t.token, t.id);
}
if (t.id) {
addlabel(t.id, { token: t.token, type: "const", unused: true });
names.push(t.token);
}
}
}
if (prefix) {
break;
}
this.first = this.first.concat(names);
if (state.tokens.next.id !== "=") {
warning("E012", state.tokens.curr, state.tokens.curr.value);
}
if (state.tokens.next.id === "=") {
advance("=");
if (state.tokens.next.id === "undefined") {
warning("W080", state.tokens.prev, state.tokens.prev.value);
}
if (peek(0).id === "=" && state.tokens.next.identifier) {
warning("W120", state.tokens.next, state.tokens.next.value);
}
value = expression(10);
if (lone) {
tokens[0].first = value;
} else {
destructuringExpressionMatch(names, value);
}
}
if (state.tokens.next.id !== ",") {
break;
}
comma();
}
return this;
});
conststatement.exps = true;
var varstatement = stmt("var", function(prefix) {
// JavaScript does not have block scope. It only has function scope. So,
// declaring a variable in a block can have unexpected consequences.
var tokens, lone, value;
this.first = [];
for (;;) {
var names = [];
if (_.contains(["{", "["], state.tokens.next.value)) {
tokens = destructuringExpression();
lone = false;
} else {
tokens = [ { id: identifier(), token: state.tokens.curr } ];
lone = true;
}
for (var t in tokens) {
if (tokens.hasOwnProperty(t)) {
t = tokens[t];
if (state.option.inESNext() && funct[t.id] === "const") {
warning("E011", null, t.id);
}
if (funct["(global)"]) {
if (predefined[t.id] === false) {
warning("W079", t.token, t.id);
} else if (state.option.futurehostile === false) {
if ((!state.option.inES5() && vars.ecmaIdentifiers[5][t.id] === false) ||
(!state.option.inESNext() && vars.ecmaIdentifiers[6][t.id] === false)) {
warning("W129", t.token, t.id);
}
}
}
if (t.id) {
addlabel(t.id, { type: "unused", token: t.token });
names.push(t.token);
}
}
}
if (prefix) {
break;
}
this.first = this.first.concat(names);
if (state.tokens.next.id === "=") {
state.nameStack.set(state.tokens.curr);
advance("=");
if (state.tokens.next.id === "undefined") {
warning("W080", state.tokens.prev, state.tokens.prev.value);
}
if (peek(0).id === "=" && state.tokens.next.identifier) {
if (!funct["(params)"] || funct["(params)"].indexOf(state.tokens.next.value) === -1) {
warning("W120", state.tokens.next, state.tokens.next.value);
}
}
value = expression(10);
if (lone) {
tokens[0].first = value;
} else {
destructuringExpressionMatch(names, value);
}
}
if (state.tokens.next.id !== ",") {
break;
}
comma();
}
return this;
});
varstatement.exps = true;
var letstatement = stmt("let", function(prefix) {
var tokens, lone, value, letblock;
if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "let");
}
if (state.tokens.next.value === "(") {
if (!state.option.inMoz(true)) {
warning("W118", state.tokens.next, "let block");
}
advance("(");
funct["(blockscope)"].stack();
letblock = true;
} else if (funct["(nolet)"]) {
error("E048", state.tokens.curr);
}
this.first = [];
for (;;) {
var names = [];
if (_.contains(["{", "["], state.tokens.next.value)) {
tokens = destructuringExpression();
lone = false;
} else {
tokens = [ { id: identifier(), token: state.tokens.curr.value } ];
lone = true;
}
for (var t in tokens) {
if (tokens.hasOwnProperty(t)) {
t = tokens[t];
if (state.option.inESNext() && funct[t.id] === "const") {
warning("E011", null, t.id);
}
if (funct["(global)"] && predefined[t.id] === false) {
warning("W079", t.token, t.id);
}
if (t.id && !funct["(nolet)"]) {
addlabel(t.id, { type: "unused", token: t.token, islet: true });
names.push(t.token);
}
}
}
if (prefix) {
break;
}
this.first = this.first.concat(names);
if (state.tokens.next.id === "=") {
advance("=");
if (state.tokens.next.id === "undefined") {
warning("W080", state.tokens.prev, state.tokens.prev.value);
}
if (peek(0).id === "=" && state.tokens.next.identifier) {
warning("W120", state.tokens.next, state.tokens.next.value);
}
value = expression(10);
if (lone) {
tokens[0].first = value;
} else {
destructuringExpressionMatch(names, value);
}
}
if (state.tokens.next.id !== ",") {
break;
}
comma();
}
if (letblock) {
advance(")");
block(true, true);
this.block = true;
funct["(blockscope)"].unstack();
}
return this;
});
letstatement.exps = true;
blockstmt("class", function() {
return classdef.call(this, true);
});
function classdef(isStatement) {
/*jshint validthis:true */
if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "class");
}
if (isStatement) {
// BindingIdentifier
this.name = identifier();
addlabel(this.name, { type: "unused", token: state.tokens.curr });
} else if (state.tokens.next.identifier && state.tokens.next.value !== "extends") {
// BindingIdentifier(opt)
this.name = identifier();
this.namedExpr = true;
} else {
this.name = state.nameStack.infer();
}
classtail(this);
return this;
}
function classtail(c) {
var strictness = state.directive["use strict"];
// ClassHeritage(opt)
if (state.tokens.next.value === "extends") {
advance("extends");
c.heritage = expression(10);
}
// A ClassBody is always strict code.
state.directive["use strict"] = true;
advance("{");
// ClassBody(opt)
c.body = classbody(c);
advance("}");
state.directive["use strict"] = strictness;
}
function classbody(c) {
var name;
var isStatic;
var isGenerator;
var getset;
var props = {};
var staticProps = {};
var computed;
for (var i = 0; state.tokens.next.id !== "}"; ++i) {
name = state.tokens.next;
isStatic = false;
isGenerator = false;
getset = null;
if (name.id === "*") {
isGenerator = true;
advance("*");
name = state.tokens.next;
}
if (name.id === "[") {
name = computedPropertyName();
} else if (isPropertyName(name)) {
// Non-Computed PropertyName
advance();
computed = false;
if (name.identifier && name.value === "static") {
if (checkPunctuators(state.tokens.next, ["*"])) {
isGenerator = true;
advance("*");
}
if (isPropertyName(state.tokens.next) || state.tokens.next.id === "[") {
computed = state.tokens.next.id === "[";
isStatic = true;
name = state.tokens.next;
if (state.tokens.next.id === "[") {
name = computedPropertyName();
} else advance();
}
}
if (name.identifier && (name.value === "get" || name.value === "set")) {
if (isPropertyName(state.tokens.next) || state.tokens.next.id === "[") {
computed = state.tokens.next.id === "[";
getset = name;
name = state.tokens.next;
if (state.tokens.next.id === "[") {
name = computedPropertyName();
} else advance();
}
}
} else {
warning("W052", state.tokens.next, state.tokens.next.value || state.tokens.next.type);
advance();
continue;
}
if (!checkPunctuators(state.tokens.next, ["("])) {
// error --- class properties must be methods
error("E054", state.tokens.next, state.tokens.next.value);
while (state.tokens.next.id !== "}" &&
!checkPunctuators(state.tokens.next, ["("])) {
advance();
}
if (state.tokens.next.value !== "(") {
doFunction({ statement: c });
}
}
if (!computed) {
// We don't know how to determine if we have duplicate computed property names :(
if (getset) {
saveAccessor(
getset.value, isStatic ? staticProps : props, name.value, name, true, isStatic);
} else {
if (name.value === "constructor") {
state.nameStack.set(c);
} else {
state.nameStack.set(name);
}
saveProperty(isStatic ? staticProps : props, name.value, name, true, isStatic);
}
}
if (getset && name.value === "constructor") {
var propDesc = getset.value === "get" ? "class getter method" : "class setter method";
error("E049", name, propDesc, "constructor");
} else if (name.value === "prototype") {
error("E049", name, "class method", "prototype");
}
propertyName(name);
doFunction({
statement: c,
type: isGenerator ? "generator" : null,
classExprBinding: c.namedExpr ? c.name : null
});
}
checkProperties(props);
}
blockstmt("function", function() {
var generator = false;
if (state.tokens.next.value === "*") {
advance("*");
if (state.option.inESNext(true)) {
generator = true;
} else {
warning("W119", state.tokens.curr, "function*");
}
}
if (inblock) {
warning("W082", state.tokens.curr);
}
var i = optionalidentifier();
if (i === undefined) {
warning("W025");
}
if (funct[i] === "const") {
warning("E011", null, i);
}
addlabel(i, { type: "unction", token: state.tokens.curr });
doFunction({
name: i,
statement: this,
type: generator ? "generator" : null
});
if (state.tokens.next.id === "(" && state.tokens.next.line === state.tokens.curr.line) {
error("E039");
}
return this;
});
prefix("function", function() {
var generator = false;
if (state.tokens.next.value === "*") {
if (!state.option.inESNext()) {
warning("W119", state.tokens.curr, "function*");
}
advance("*");
generator = true;
}
var i = optionalidentifier();
var fn = doFunction({ name: i, type: generator ? "generator" : null });
function isVariable(name) { return name[0] !== "("; }
function isLocal(name) { return fn[name] === "var"; }
if (!state.option.loopfunc && funct["(loopage)"]) {
// If the function we just parsed accesses any non-local variables
// trigger a warning. Otherwise, the function is safe even within
// a loop.
if (_.some(fn, function(val, name) { return isVariable(name) && !isLocal(name); })) {
warning("W083");
}
}
return this;
});
blockstmt("if", function() {
var t = state.tokens.next;
increaseComplexityCount();
state.condition = true;
advance("(");
var expr = expression(0);
checkCondAssignment(expr);
// When the if is within a for-in loop, check if the condition
// starts with a negation operator
var forinifcheck = null;
if (state.option.forin && state.forinifcheckneeded) {
state.forinifcheckneeded = false; // We only need to analyze the first if inside the loop
forinifcheck = state.forinifchecks[state.forinifchecks.length - 1];
if (expr.type === "(punctuator)" && expr.value === "!") {
forinifcheck.type = "(negative)";
} else {
forinifcheck.type = "(positive)";
}
}
advance(")", t);
state.condition = false;
var s = block(true, true);
// When the if is within a for-in loop and the condition has a negative form,
// check if the body contains nothing but a continue statement
if (forinifcheck && forinifcheck.type === "(negative)") {
if (s && s.length === 1 && s[0].type === "(identifier)" && s[0].value === "continue") {
forinifcheck.type = "(negative-with-continue)";
}
}
if (state.tokens.next.id === "else") {
advance("else");
if (state.tokens.next.id === "if" || state.tokens.next.id === "switch") {
statement();
} else {
block(true, true);
}
}
return this;
});
blockstmt("try", function() {
var b;
function doCatch() {
var oldScope = scope;
var e;
advance("catch");
advance("(");
scope = Object.create(oldScope);
e = state.tokens.next.value;
if (state.tokens.next.type !== "(identifier)") {
e = null;
warning("E030", state.tokens.next, e);
}
advance();
funct = functor("(catch)", state.tokens.next, scope, {
"(context)" : funct,
"(breakage)" : funct["(breakage)"],
"(loopage)" : funct["(loopage)"],
"(statement)": false,
"(catch)" : true
});
if (e) {
addlabel(e, { type: "exception" });
}
if (state.tokens.next.value === "if") {
if (!state.option.inMoz(true)) {
warning("W118", state.tokens.curr, "catch filter");
}
advance("if");
expression(0);
}
advance(")");
state.tokens.curr.funct = funct;
functions.push(funct);
block(false);
scope = oldScope;
funct["(last)"] = state.tokens.curr.line;
funct["(lastcharacter)"] = state.tokens.curr.character;
funct = funct["(context)"];
}
block(true);
while (state.tokens.next.id === "catch") {
increaseComplexityCount();
if (b && (!state.option.inMoz(true))) {
warning("W118", state.tokens.next, "multiple catch blocks");
}
doCatch();
b = true;
}
if (state.tokens.next.id === "finally") {
advance("finally");
block(true);
return;
}
if (!b) {
error("E021", state.tokens.next, "catch", state.tokens.next.value);
}
return this;
});
blockstmt("while", function() {
var t = state.tokens.next;
funct["(breakage)"] += 1;
funct["(loopage)"] += 1;
increaseComplexityCount();
advance("(");
checkCondAssignment(expression(0));
advance(")", t);
block(true, true);
funct["(breakage)"] -= 1;
funct["(loopage)"] -= 1;
return this;
}).labelled = true;
blockstmt("with", function() {
var t = state.tokens.next;
if (state.directive["use strict"]) {
error("E010", state.tokens.curr);
} else if (!state.option.withstmt) {
warning("W085", state.tokens.curr);
}
advance("(");
expression(0);
advance(")", t);
block(true, true);
return this;
});
blockstmt("switch", function() {
var t = state.tokens.next;
var g = false;
var noindent = false;
funct["(breakage)"] += 1;
advance("(");
checkCondAssignment(expression(0));
advance(")", t);
t = state.tokens.next;
advance("{");
if (state.tokens.next.from === indent)
noindent = true;
if (!noindent)
indent += state.option.indent;
this.cases = [];
for (;;) {
switch (state.tokens.next.id) {
case "case":
switch (funct["(verb)"]) {
case "yield":
case "break":
case "case":
case "continue":
case "return":
case "switch":
case "throw":
break;
default:
// You can tell JSHint that you don't use break intentionally by
// adding a comment /* falls through */ on a line just before
// the next `case`.
if (!reg.fallsThrough.test(state.lines[state.tokens.next.line - 2])) {
warning("W086", state.tokens.curr, "case");
}
}
advance("case");
this.cases.push(expression(0));
increaseComplexityCount();
g = true;
advance(":");
funct["(verb)"] = "case";
break;
case "default":
switch (funct["(verb)"]) {
case "yield":
case "break":
case "continue":
case "return":
case "throw":
break;
default:
// Do not display a warning if 'default' is the first statement or if
// there is a special /* falls through */ comment.
if (this.cases.length) {
if (!reg.fallsThrough.test(state.lines[state.tokens.next.line - 2])) {
warning("W086", state.tokens.curr, "default");
}
}
}
advance("default");
g = true;
advance(":");
break;
case "}":
if (!noindent)
indent -= state.option.indent;
advance("}", t);
funct["(breakage)"] -= 1;
funct["(verb)"] = undefined;
return;
case "(end)":
error("E023", state.tokens.next, "}");
return;
default:
indent += state.option.indent;
if (g) {
switch (state.tokens.curr.id) {
case ",":
error("E040");
return;
case ":":
g = false;
statements();
break;
default:
error("E025", state.tokens.curr);
return;
}
} else {
if (state.tokens.curr.id === ":") {
advance(":");
error("E024", state.tokens.curr, ":");
statements();
} else {
error("E021", state.tokens.next, "case", state.tokens.next.value);
return;
}
}
indent -= state.option.indent;
}
}
}).labelled = true;
stmt("debugger", function() {
if (!state.option.debug) {
warning("W087", this);
}
return this;
}).exps = true;
(function() {
var x = stmt("do", function() {
funct["(breakage)"] += 1;
funct["(loopage)"] += 1;
increaseComplexityCount();
this.first = block(true, true);
advance("while");
var t = state.tokens.next;
advance("(");
checkCondAssignment(expression(0));
advance(")", t);
funct["(breakage)"] -= 1;
funct["(loopage)"] -= 1;
return this;
});
x.labelled = true;
x.exps = true;
}());
blockstmt("for", function() {
var s, t = state.tokens.next;
var letscope = false;
var foreachtok = null;
if (t.value === "each") {
foreachtok = t;
advance("each");
if (!state.option.inMoz(true)) {
warning("W118", state.tokens.curr, "for each");
}
}
funct["(breakage)"] += 1;
funct["(loopage)"] += 1;
increaseComplexityCount();
advance("(");
// what kind of for(…) statement it is? for(…of…)? for(…in…)? for(…;…;…)?
var nextop; // contains the token of the "in" or "of" operator
var i = 0;
var inof = ["in", "of"];
do {
nextop = peek(i);
++i;
} while (!_.contains(inof, nextop.value) && nextop.value !== ";" && nextop.type !== "(end)");
// if we're in a for (… in|of …) statement
if (_.contains(inof, nextop.value)) {
if (!state.option.inESNext() && nextop.value === "of") {
error("W104", nextop, "for of");
}
if (state.tokens.next.id === "var") {
advance("var");
state.syntax["var"].fud.call(state.syntax["var"].fud, true);
} else if (state.tokens.next.id === "let") {
advance("let");
// create a new block scope
letscope = true;
funct["(blockscope)"].stack();
state.syntax["let"].fud.call(state.syntax["let"].fud, true);
} else if (!state.tokens.next.identifier) {
error("E030", state.tokens.next, state.tokens.next.type);
advance();
} else {
switch (funct[state.tokens.next.value]) {
case "unused":
funct[state.tokens.next.value] = "var";
break;
case "var":
break;
default:
var ident = state.tokens.next.value;
if (!funct["(blockscope)"].getlabel(ident) &&
!(scope[ident] || {})[ident]) {
warning("W088", state.tokens.next, state.tokens.next.value);
}
}
advance();
}
advance(nextop.value);
expression(20);
advance(")", t);
if (nextop.value === "in" && state.option.forin) {
state.forinifcheckneeded = true;
if (state.forinifchecks === undefined) {
state.forinifchecks = [];
}
// Push a new for-in-if check onto the stack. The type will be modified
// when the loop's body is parsed and a suitable if statement exists.
state.forinifchecks.push({
type: "(none)"
});
}
s = block(true, true);
if (nextop.value === "in" && state.option.forin) {
if (state.forinifchecks && state.forinifchecks.length > 0) {
var check = state.forinifchecks.pop();
if (// No if statement or not the first statement in loop body
s && s.length > 0 && (typeof s[0] !== "object" || s[0].value !== "if") ||
// Positive if statement is not the only one in loop body
check.type === "(positive)" && s.length > 1 ||
// Negative if statement but no continue
check.type === "(negative)") {
warning("W089", this);
}
}
// Reset the flag in case no if statement was contained in the loop body
state.forinifcheckneeded = false;
}
funct["(breakage)"] -= 1;
funct["(loopage)"] -= 1;
} else {
if (foreachtok) {
error("E045", foreachtok);
}
if (state.tokens.next.id !== ";") {
if (state.tokens.next.id === "var") {
advance("var");
state.syntax["var"].fud.call(state.syntax["var"].fud);
} else if (state.tokens.next.id === "let") {
advance("let");
// create a new block scope
letscope = true;
funct["(blockscope)"].stack();
state.syntax["let"].fud.call(state.syntax["let"].fud);
} else {
for (;;) {
expression(0, "for");
if (state.tokens.next.id !== ",") {
break;
}
comma();
}
}
}
nolinebreak(state.tokens.curr);
advance(";");
if (state.tokens.next.id !== ";") {
checkCondAssignment(expression(0));
}
nolinebreak(state.tokens.curr);
advance(";");
if (state.tokens.next.id === ";") {
error("E021", state.tokens.next, ")", ";");
}
if (state.tokens.next.id !== ")") {
for (;;) {
expression(0, "for");
if (state.tokens.next.id !== ",") {
break;
}
comma();
}
}
advance(")", t);
block(true, true);
funct["(breakage)"] -= 1;
funct["(loopage)"] -= 1;
}
// unstack loop blockscope
if (letscope) {
funct["(blockscope)"].unstack();
}
return this;
}).labelled = true;
stmt("break", function() {
var v = state.tokens.next.value;
if (funct["(breakage)"] === 0)
warning("W052", state.tokens.next, this.value);
if (!state.option.asi)
nolinebreak(this);
if (state.tokens.next.id !== ";" && !state.tokens.next.reach) {
if (state.tokens.curr.line === startLine(state.tokens.next)) {
if (funct[v] !== "label") {
warning("W090", state.tokens.next, v);
} else if (scope[v] !== funct) {
warning("W091", state.tokens.next, v);
}
this.first = state.tokens.next;
advance();
}
}
reachable(this);
return this;
}).exps = true;
stmt("continue", function() {
var v = state.tokens.next.value;
if (funct["(breakage)"] === 0)
warning("W052", state.tokens.next, this.value);
if (!state.option.asi)
nolinebreak(this);
if (state.tokens.next.id !== ";" && !state.tokens.next.reach) {
if (state.tokens.curr.line === startLine(state.tokens.next)) {
if (funct[v] !== "label") {
warning("W090", state.tokens.next, v);
} else if (scope[v] !== funct) {
warning("W091", state.tokens.next, v);
}
this.first = state.tokens.next;
advance();
}
} else if (!funct["(loopage)"]) {
warning("W052", state.tokens.next, this.value);
}
reachable(this);
return this;
}).exps = true;
stmt("return", function() {
if (this.line === startLine(state.tokens.next)) {
if (state.tokens.next.id !== ";" && !state.tokens.next.reach) {
this.first = expression(0);
if (this.first &&
this.first.type === "(punctuator)" && this.first.value === "=" &&
!this.first.paren && !state.option.boss) {
warningAt("W093", this.first.line, this.first.character);
}
}
} else {
if (state.tokens.next.type === "(punctuator)" &&
["[", "{", "+", "-"].indexOf(state.tokens.next.value) > -1) {
nolinebreak(this); // always warn (Line breaking error)
}
}
reachable(this);
return this;
}).exps = true;
(function(x) {
x.exps = true;
x.lbp = 25;
}(prefix("yield", function() {
var prev = state.tokens.prev;
if (state.option.inESNext(true) && !funct["(generator)"]) {
// If it's a yield within a catch clause inside a generator then that's ok
if (!("(catch)" === funct["(name)"] && funct["(context)"]["(generator)"])) {
error("E046", state.tokens.curr, "yield");
}
} else if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "yield");
}
funct["(generator)"] = "yielded";
var delegatingYield = false;
if (state.tokens.next.value === "*") {
delegatingYield = true;
advance("*");
}
if (this.line === startLine(state.tokens.next) || !state.option.inMoz(true)) {
if (delegatingYield ||
(state.tokens.next.id !== ";" && !state.tokens.next.reach && state.tokens.next.nud)) {
nobreaknonadjacent(state.tokens.curr, state.tokens.next);
this.first = expression(10);
if (this.first.type === "(punctuator)" && this.first.value === "=" &&
!this.first.paren && !state.option.boss) {
warningAt("W093", this.first.line, this.first.character);
}
}
if (state.option.inMoz(true) && state.tokens.next.id !== ")" &&
(prev.lbp > 30 || (!prev.assign && !isEndOfExpr()) || prev.id === "yield")) {
error("E050", this);
}
} else if (!state.option.asi) {
nolinebreak(this); // always warn (Line breaking error)
}
return this;
})));
stmt("throw", function() {
nolinebreak(this);
this.first = expression(20);
reachable(this);
return this;
}).exps = true;
stmt("import", function() {
if (!state.option.inESNext()) {
warning("W119", state.tokens.curr, "import");
}
if (state.tokens.next.type === "(string)") {
// ModuleSpecifier :: StringLiteral
advance("(string)");
return this;
}
if (state.tokens.next.identifier) {
// ImportClause :: ImportedDefaultBinding
this.name = identifier();
addlabel(this.name, { type: "unused", token: state.tokens.curr });
if (state.tokens.next.value === ",") {
// ImportClause :: ImportedDefaultBinding , NameSpaceImport
// ImportClause :: ImportedDefaultBinding , NamedImports
advance(",");
// At this point, we intentionally fall through to continue matching
// either NameSpaceImport or NamedImports.
// Discussion:
// https://github.com/jshint/jshint/pull/2144#discussion_r23978406
} else {
advance("from");
advance("(string)");
return this;
}
}
if (state.tokens.next.id === "*") {
// ImportClause :: NameSpaceImport
advance("*");
advance("as");
if (state.tokens.next.identifier) {
this.name = identifier();
addlabel(this.name, { type: "unused", token: state.tokens.curr });
}
} else {
// ImportClause :: NamedImports
advance("{");
for (;;) {
if (state.tokens.next.value === "}") {
advance("}");
break;
}
var importName;
if (state.tokens.next.type === "default") {
importName = "default";
advance("default");
} else {
importName = identifier();
}
if (state.tokens.next.value === "as") {
advance("as");
importName = identifier();
}
addlabel(importName, { type: "unused", token: state.tokens.curr });
if (state.tokens.next.value === ",") {
advance(",");
} else if (state.tokens.next.value === "}") {
advance("}");
break;
} else {
error("E024", state.tokens.next, state.tokens.next.value);
break;
}
}
}
// FromClause
advance("from");
advance("(string)");
return this;
}).exps = true;
stmt("export", function() {
var ok = true;
var token;
var identifier;
if (!state.option.inESNext()) {
warning("W119", state.tokens.curr, "export");
ok = false;
}
if (!funct["(global)"] || !funct["(blockscope)"].atTop()) {
error("E053", state.tokens.curr);
ok = false;
}
if (state.tokens.next.value === "*") {
// ExportDeclaration :: export * FromClause
advance("*");
advance("from");
advance("(string)");
return this;
}
if (state.tokens.next.type === "default") {
// ExportDeclaration :: export default HoistableDeclaration
// ExportDeclaration :: export default ClassDeclaration
state.nameStack.set(state.tokens.next);
advance("default");
if (state.tokens.next.id === "function" || state.tokens.next.id === "class") {
this.block = true;
}
token = peek();
expression(10);
if (state.tokens.next.id === "class") {
identifier = token.name;
} else {
identifier = token.value;
}
addlabel(identifier, {
type: "function", token: token
});
return this;
}
if (state.tokens.next.value === "{") {
// ExportDeclaration :: export ExportClause
advance("{");
var exportedTokens = [];
for (;;) {
if (!state.tokens.next.identifier) {
error("E030", state.tokens.next, state.tokens.next.value);
}
advance();
state.tokens.curr.exported = ok;
exportedTokens.push(state.tokens.curr);
if (state.tokens.next.value === "as") {
advance("as");
if (!state.tokens.next.identifier) {
error("E030", state.tokens.next, state.tokens.next.value);
}
advance();
}
if (state.tokens.next.value === ",") {
advance(",");
} else if (state.tokens.next.value === "}") {
advance("}");
break;
} else {
error("E024", state.tokens.next, state.tokens.next.value);
break;
}
}
if (state.tokens.next.value === "from") {
// ExportDeclaration :: export ExportClause FromClause
advance("from");
advance("(string)");
} else if (ok) {
exportedTokens.forEach(function(token) {
if (!funct[token.value]) {
isundef(funct, "W117", token, token.value);
}
exported[token.value] = true;
funct["(blockscope)"].setExported(token.value);
});
}
return this;
}
if (state.tokens.next.id === "var") {
// ExportDeclaration :: export VariableStatement
advance("var");
exported[state.tokens.next.value] = ok;
state.tokens.next.exported = true;
state.syntax["var"].fud.call(state.syntax["var"].fud);
} else if (state.tokens.next.id === "let") {
// ExportDeclaration :: export VariableStatement
advance("let");
exported[state.tokens.next.value] = ok;
state.tokens.next.exported = true;
state.syntax["let"].fud.call(state.syntax["let"].fud);
} else if (state.tokens.next.id === "const") {
// ExportDeclaration :: export VariableStatement
advance("const");
exported[state.tokens.next.value] = ok;
state.tokens.next.exported = true;
state.syntax["const"].fud.call(state.syntax["const"].fud);
} else if (state.tokens.next.id === "function") {
// ExportDeclaration :: export Declaration
this.block = true;
advance("function");
exported[state.tokens.next.value] = ok;
state.tokens.next.exported = true;
state.syntax["function"].fud();
} else if (state.tokens.next.id === "class") {
// ExportDeclaration :: export Declaration
this.block = true;
advance("class");
exported[state.tokens.next.value] = ok;
state.tokens.next.exported = true;
state.syntax["class"].fud();
} else {
error("E024", state.tokens.next, state.tokens.next.value);
}
return this;
}).exps = true;
// Future Reserved Words
FutureReservedWord("abstract");
FutureReservedWord("boolean");
FutureReservedWord("byte");
FutureReservedWord("char");
FutureReservedWord("class", { es5: true, nud: classdef });
FutureReservedWord("double");
FutureReservedWord("enum", { es5: true });
FutureReservedWord("export", { es5: true });
FutureReservedWord("extends", { es5: true });
FutureReservedWord("final");
FutureReservedWord("float");
FutureReservedWord("goto");
FutureReservedWord("implements", { es5: true, strictOnly: true });
FutureReservedWord("import", { es5: true });
FutureReservedWord("int");
FutureReservedWord("interface", { es5: true, strictOnly: true });
FutureReservedWord("long");
FutureReservedWord("native");
FutureReservedWord("package", { es5: true, strictOnly: true });
FutureReservedWord("private", { es5: true, strictOnly: true });
FutureReservedWord("protected", { es5: true, strictOnly: true });
FutureReservedWord("public", { es5: true, strictOnly: true });
FutureReservedWord("short");
FutureReservedWord("static", { es5: true, strictOnly: true });
FutureReservedWord("super", { es5: true });
FutureReservedWord("synchronized");
FutureReservedWord("transient");
FutureReservedWord("volatile");
// this function is used to determine whether a squarebracket or a curlybracket
// expression is a comprehension array, destructuring assignment or a json value.
var lookupBlockType = function() {
var pn, pn1;
var i = -1;
var bracketStack = 0;
var ret = {};
if (checkPunctuators(state.tokens.curr, ["[", "{"]))
bracketStack += 1;
do {
pn = (i === -1) ? state.tokens.next : peek(i);
pn1 = peek(i + 1);
i = i + 1;
if (checkPunctuators(pn, ["[", "{"])) {
bracketStack += 1;
} else if (checkPunctuators(pn, ["]", "}"])) {
bracketStack -= 1;
}
if (pn.identifier && pn.value === "for" && bracketStack === 1) {
ret.isCompArray = true;
ret.notJson = true;
break;
}
if (checkPunctuators(pn, ["}", "]"]) && bracketStack === 0) {
if (pn1.value === "=") {
ret.isDestAssign = true;
ret.notJson = true;
break;
} else if (pn1.value === ".") {
ret.notJson = true;
break;
}
}
if (pn.value === ";") {
ret.isBlock = true;
ret.notJson = true;
}
} while (bracketStack > 0 && pn.id !== "(end)");
return ret;
};
function saveProperty(props, name, tkn, isClass, isStatic) {
var msg = ["key", "class method", "static class method"];
msg = msg[(isClass || false) + (isStatic || false)];
if (tkn.identifier) {
name = tkn.value;
}
if (props[name] && _.has(props, name)) {
warning("W075", state.tokens.next, msg, name);
} else {
props[name] = {};
}
props[name].basic = true;
props[name].basictkn = tkn;
}
/**
* @param {string} accessorType - Either "get" or "set"
* @param {object} props - a collection of all properties of the object to
* which the current accessor is being assigned
* @param {object} tkn - the identifier token representing the accessor name
* @param {boolean} isClass - whether the accessor is part of an ES6 Class
* definition
* @param {boolean} isStatic - whether the accessor is a static method
*/
function saveAccessor(accessorType, props, name, tkn, isClass, isStatic) {
var flagName = accessorType === "get" ? "getterToken" : "setterToken";
var msg = "";
if (isClass) {
if (isStatic) {
msg += "static ";
}
msg += accessorType + "ter method";
} else {
msg = "key";
}
state.tokens.curr.accessorType = accessorType;
state.nameStack.set(tkn);
if (props[name] && _.has(props, name)) {
if (props[name].basic || props[name][flagName]) {
warning("W075", state.tokens.next, msg, name);
}
} else {
props[name] = {};
}
props[name][flagName] = tkn;
}
function computedPropertyName() {
advance("[");
if (!state.option.esnext) {
warning("W119", state.tokens.curr, "computed property names");
}
var value = expression(10);
advance("]");
return value;
}
// Test whether a given token is a punctuator matching one of the specified values
function checkPunctuators(token, values) {
return token.type === "(punctuator)" && _.contains(values, token.value);
}
// Check whether this function has been reached for a destructuring assign with undeclared values
function destructuringAssignOrJsonValue() {
// lookup for the assignment (esnext only)
// if it has semicolons, it is a block, so go parse it as a block
// or it's not a block, but there are assignments, check for undeclared variables
var block = lookupBlockType();
if (block.notJson) {
if (!state.option.inESNext() && block.isDestAssign) {
warning("W104", state.tokens.curr, "destructuring assignment");
}
statements();
// otherwise parse json value
} else {
state.option.laxbreak = true;
state.jsonMode = true;
jsonValue();
}
}
// array comprehension parsing function
// parses and defines the three states of the list comprehension in order
// to avoid defining global variables, but keeping them to the list comprehension scope
// only. The order of the states are as follows:
// * "use" which will be the returned iterative part of the list comprehension
// * "define" which will define the variables local to the list comprehension
// * "filter" which will help filter out values
var arrayComprehension = function() {
var CompArray = function() {
this.mode = "use";
this.variables = [];
};
var _carrays = [];
var _current;
function declare(v) {
var l = _current.variables.filter(function(elt) {
// if it has, change its undef state
if (elt.value === v) {
elt.undef = false;
return v;
}
}).length;
return l !== 0;
}
function use(v) {
var l = _current.variables.filter(function(elt) {
// and if it has been defined
if (elt.value === v && !elt.undef) {
if (elt.unused === true) {
elt.unused = false;
}
return v;
}
}).length;
// otherwise we warn about it
return (l === 0);
}
return { stack: function() {
_current = new CompArray();
_carrays.push(_current);
},
unstack: function() {
_current.variables.filter(function(v) {
if (v.unused)
warning("W098", v.token, v.raw_text || v.value);
if (v.undef)
isundef(v.funct, "W117", v.token, v.value);
});
_carrays.splice(-1, 1);
_current = _carrays[_carrays.length - 1];
},
setState: function(s) {
if (_.contains(["use", "define", "generate", "filter"], s))
_current.mode = s;
},
check: function(v) {
if (!_current) {
return;
}
// When we are in "use" state of the list comp, we enqueue that var
if (_current && _current.mode === "use") {
if (use(v)) {
_current.variables.push({
funct: funct,
token: state.tokens.curr,
value: v,
undef: true,
unused: false
});
}
return true;
// When we are in "define" state of the list comp,
} else if (_current && _current.mode === "define") {
// check if the variable has been used previously
if (!declare(v)) {
_current.variables.push({
funct: funct,
token: state.tokens.curr,
value: v,
undef: false,
unused: true
});
}
return true;
// When we are in the "generate" state of the list comp,
} else if (_current && _current.mode === "generate") {
isundef(funct, "W117", state.tokens.curr, v);
return true;
// When we are in "filter" state,
} else if (_current && _current.mode === "filter") {
// we check whether current variable has been declared
if (use(v)) {
// if not we warn about it
isundef(funct, "W117", state.tokens.curr, v);
}
return true;
}
return false;
}
};
};
// Parse JSON
function jsonValue() {
function jsonObject() {
var o = {}, t = state.tokens.next;
advance("{");
if (state.tokens.next.id !== "}") {
for (;;) {
if (state.tokens.next.id === "(end)") {
error("E026", state.tokens.next, t.line);
} else if (state.tokens.next.id === "}") {
warning("W094", state.tokens.curr);
break;
} else if (state.tokens.next.id === ",") {
error("E028", state.tokens.next);
} else if (state.tokens.next.id !== "(string)") {
warning("W095", state.tokens.next, state.tokens.next.value);
}
if (o[state.tokens.next.value] === true) {
warning("W075", state.tokens.next, "key", state.tokens.next.value);
} else if ((state.tokens.next.value === "__proto__" &&
!state.option.proto) || (state.tokens.next.value === "__iterator__" &&
!state.option.iterator)) {
warning("W096", state.tokens.next, state.tokens.next.value);
} else {
o[state.tokens.next.value] = true;
}
advance();
advance(":");
jsonValue();
if (state.tokens.next.id !== ",") {
break;
}
advance(",");
}
}
advance("}");
}
function jsonArray() {
var t = state.tokens.next;
advance("[");
if (state.tokens.next.id !== "]") {
for (;;) {
if (state.tokens.next.id === "(end)") {
error("E027", state.tokens.next, t.line);
} else if (state.tokens.next.id === "]") {
warning("W094", state.tokens.curr);
break;
} else if (state.tokens.next.id === ",") {
error("E028", state.tokens.next);
}
jsonValue();
if (state.tokens.next.id !== ",") {
break;
}
advance(",");
}
}
advance("]");
}
switch (state.tokens.next.id) {
case "{":
jsonObject();
break;
case "[":
jsonArray();
break;
case "true":
case "false":
case "null":
case "(number)":
case "(string)":
advance();
break;
case "-":
advance("-");
advance("(number)");
break;
default:
error("E003", state.tokens.next);
}
}
var blockScope = function() {
var _current = {};
var _variables = [_current];
function _checkBlockLabels() {
for (var t in _current) {
if (_current[t]["(type)"] === "unused") {
if (state.option.unused) {
var tkn = _current[t]["(token)"];
// Don't report exported labels as unused
if (tkn.exported) {
continue;
}
var line = tkn.line;
var chr = tkn.character;
warningAt("W098", line, chr, t);
}
}
}
}
return {
stack: function() {
_current = {};
_variables.push(_current);
},
unstack: function() {
_checkBlockLabels();
_variables.splice(_variables.length - 1, 1);
_current = _.last(_variables);
},
getlabel: function(l) {
for (var i = _variables.length - 1 ; i >= 0; --i) {
if (_.has(_variables[i], l) && !_variables[i][l]["(shadowed)"]) {
return _variables[i];
}
}
},
shadow: function(name) {
for (var i = _variables.length - 1; i >= 0; i--) {
if (_.has(_variables[i], name)) {
_variables[i][name]["(shadowed)"] = true;
}
}
},
unshadow: function(name) {
for (var i = _variables.length - 1; i >= 0; i--) {
if (_.has(_variables[i], name)) {
_variables[i][name]["(shadowed)"] = false;
}
}
},
atTop: function() {
return _variables.length === 1;
},
setExported: function(id) {
if (funct["(blockscope)"].atTop()) {
var item = _current[id];
if (item && item["(token)"]) {
item["(token)"].exported = true;
}
}
},
current: {
has: function(t) {
return _.has(_current, t);
},
add: function(t, type, tok) {
_current[t] = { "(type)" : type, "(token)": tok, "(shadowed)": false };
}
}
};
};
var escapeRegex = function(str) {
return str.replace(/[-\/\\^$*+?.()|[\]{}]/g, "\\$&");
};
// The actual JSHINT function itself.
var itself = function(s, o, g) {
var i, k, x, reIgnoreStr, reIgnore;
var optionKeys;
var newOptionObj = {};
var newIgnoredObj = {};
o = _.clone(o);
state.reset();
if (o && o.scope) {
JSHINT.scope = o.scope;
} else {
JSHINT.errors = [];
JSHINT.undefs = [];
JSHINT.internals = [];
JSHINT.blacklist = {};
JSHINT.scope = "(main)";
}
predefined = Object.create(null);
combine(predefined, vars.ecmaIdentifiers[3]);
combine(predefined, vars.reservedVars);
combine(predefined, g || {});
declared = Object.create(null);
exported = Object.create(null);
function each(obj, cb) {
if (!obj)
return;
if (!Array.isArray(obj) && typeof obj === "object")
obj = Object.keys(obj);
obj.forEach(cb);
}
if (o) {
each(o.predef || null, function(item) {
var slice, prop;
if (item[0] === "-") {
slice = item.slice(1);
JSHINT.blacklist[slice] = slice;
// remove from predefined if there
delete predefined[slice];
} else {
prop = Object.getOwnPropertyDescriptor(o.predef, item);
predefined[item] = prop ? prop.value : false;
}
});
each(o.exported || null, function(item) {
exported[item] = true;
});
delete o.predef;
delete o.exported;
optionKeys = Object.keys(o);
for (x = 0; x < optionKeys.length; x++) {
if (/^-W\d{3}$/g.test(optionKeys[x])) {
newIgnoredObj[optionKeys[x].slice(1)] = true;
} else {
newOptionObj[optionKeys[x]] = o[optionKeys[x]];
if (optionKeys[x] === "newcap" && o[optionKeys[x]] === false)
newOptionObj["(explicitNewcap)"] = true;
}
}
}
state.option = newOptionObj;
state.ignored = newIgnoredObj;
state.option.indent = state.option.indent || 4;
state.option.maxerr = state.option.maxerr || 50;
indent = 1;
global = Object.create(predefined);
scope = global;
funct = functor("(global)", null, scope, {
"(global)" : true,
"(blockscope)": blockScope(),
"(comparray)" : arrayComprehension(),
"(metrics)" : createMetrics(state.tokens.next)
});
functions = [funct];
urls = [];
stack = null;
member = {};
membersOnly = null;
implied = {};
inblock = false;
lookahead = [];
unuseds = [];
if (!isString(s) && !Array.isArray(s)) {
errorAt("E004", 0);
return false;
}
api = {
get isJSON() {
return state.jsonMode;
},
getOption: function(name) {
return state.option[name] || null;
},
getCache: function(name) {
return state.cache[name];
},
setCache: function(name, value) {
state.cache[name] = value;
},
warn: function(code, data) {
warningAt.apply(null, [ code, data.line, data.char ].concat(data.data));
},
on: function(names, listener) {
names.split(" ").forEach(function(name) {
emitter.on(name, listener);
}.bind(this));
}
};
emitter.removeAllListeners();
(extraModules || []).forEach(function(func) {
func(api);
});
state.tokens.prev = state.tokens.curr = state.tokens.next = state.syntax["(begin)"];
if (o && o.ignoreDelimiters) {
if (!Array.isArray(o.ignoreDelimiters)) {
o.ignoreDelimiters = [o.ignoreDelimiters];
}
o.ignoreDelimiters.forEach(function(delimiterPair) {
if (!delimiterPair.start || !delimiterPair.end)
return;
reIgnoreStr = escapeRegex(delimiterPair.start) +
"[\\s\\S]*?" +
escapeRegex(delimiterPair.end);
reIgnore = new RegExp(reIgnoreStr, "ig");
s = s.replace(reIgnore, function(match) {
return match.replace(/./g, " ");
});
});
}
lex = new Lexer(s);
lex.on("warning", function(ev) {
warningAt.apply(null, [ ev.code, ev.line, ev.character].concat(ev.data));
});
lex.on("error", function(ev) {
errorAt.apply(null, [ ev.code, ev.line, ev.character ].concat(ev.data));
});
lex.on("fatal", function(ev) {
quit("E041", ev.line, ev.from);
});
lex.on("Identifier", function(ev) {
emitter.emit("Identifier", ev);
});
lex.on("String", function(ev) {
emitter.emit("String", ev);
});
lex.on("Number", function(ev) {
emitter.emit("Number", ev);
});
lex.start();
// Check options
for (var name in o) {
if (_.has(o, name)) {
checkOption(name, state.tokens.curr);
}
}
assume();
// combine the passed globals after we've assumed all our options
combine(predefined, g || {});
//reset values
comma.first = true;
try {
advance();
switch (state.tokens.next.id) {
case "{":
case "[":
destructuringAssignOrJsonValue();
break;
default:
directives();
if (state.directive["use strict"]) {
if (!state.option.globalstrict) {
if (!(state.option.node || state.option.phantom || state.option.browserify)) {
warning("W097", state.tokens.prev);
}
}
}
statements();
}
advance((state.tokens.next && state.tokens.next.value !== ".") ? "(end)" : undefined);
funct["(blockscope)"].unstack();
var markDefined = function(name, context) {
do {
if (typeof context[name] === "string") {
// JSHINT marks unused variables as 'unused' and
// unused function declaration as 'unction'. This
// code changes such instances back 'var' and
// 'closure' so that the code in JSHINT.data()
// doesn't think they're unused.
if (context[name] === "unused")
context[name] = "var";
else if (context[name] === "unction")
context[name] = "closure";
return true;
}
context = context["(context)"];
} while (context);
return false;
};
var clearImplied = function(name, line) {
if (!implied[name])
return;
var newImplied = [];
for (var i = 0; i < implied[name].length; i += 1) {
if (implied[name][i] !== line)
newImplied.push(implied[name][i]);
}
if (newImplied.length === 0)
delete implied[name];
else
implied[name] = newImplied;
};
var warnUnused = function(name, tkn, type, unused_opt) {
var line = tkn.line;
var chr = tkn.from;
var raw_name = tkn.raw_text || name;
if (unused_opt === undefined) {
unused_opt = state.option.unused;
}
if (unused_opt === true) {
unused_opt = "last-param";
}
var warnable_types = {
"vars": ["var"],
"last-param": ["var", "param"],
"strict": ["var", "param", "last-param"]
};
if (unused_opt) {
if (warnable_types[unused_opt] && warnable_types[unused_opt].indexOf(type) !== -1) {
if (!tkn.exported) {
warningAt("W098", line, chr, raw_name);
}
}
}
unuseds.push({
name: name,
line: line,
character: chr
});
};
var checkUnused = function(func, key) {
var type = func[key];
var tkn = func["(tokens)"][key];
if (key.charAt(0) === "(")
return;
if (type !== "unused" && type !== "unction" && type !== "const")
return;
// Params are checked separately from other variables.
if (func["(params)"] && func["(params)"].indexOf(key) !== -1)
return;
// Variable is in global scope and defined as exported.
if (func["(global)"] && _.has(exported, key))
return;
// Is this constant unused?
if (type === "const" && !getprop(func, key, "unused"))
return;
warnUnused(key, tkn, "var");
};
// Check queued 'x is not defined' instances to see if they're still undefined.
for (i = 0; i < JSHINT.undefs.length; i += 1) {
k = JSHINT.undefs[i].slice(0);
if (markDefined(k[2].value, k[0]) || k[2].forgiveUndef) {
clearImplied(k[2].value, k[2].line);
} else if (state.option.undef) {
warning.apply(warning, k.slice(1));
}
}
functions.forEach(function(func) {
if (func["(unusedOption)"] === false) {
return;
}
for (var key in func) {
if (_.has(func, key)) {
checkUnused(func, key);
}
}
if (!func["(params)"])
return;
var params = func["(params)"].slice();
var param = params.pop();
var type, unused_opt;
while (param) {
type = func[param];
unused_opt = func["(unusedOption)"] || state.option.unused;
unused_opt = unused_opt === true ? "last-param" : unused_opt;
// 'undefined' is a special case for (function(window, undefined) { ... })();
// patterns.
if (param === "undefined")
return;
if (type === "unused" || type === "unction") {
warnUnused(param, func["(tokens)"][param], "param", func["(unusedOption)"]);
} else if (unused_opt === "last-param") {
return;
}
param = params.pop();
}
});
for (var key in declared) {
if (_.has(declared, key) && !_.has(global, key) && !_.has(exported, key)) {
warnUnused(key, declared[key], "var");
}
}
} catch (err) {
if (err && err.name === "JSHintError") {
var nt = state.tokens.next || {};
JSHINT.errors.push({
scope : "(main)",
raw : err.raw,
code : err.code,
reason : err.message,
line : err.line || nt.line,
character : err.character || nt.from
}, null);
} else {
throw err;
}
}
// Loop over the listed "internals", and check them as well.
if (JSHINT.scope === "(main)") {
o = o || {};
for (i = 0; i < JSHINT.internals.length; i += 1) {
k = JSHINT.internals[i];
o.scope = k.elem;
itself(k.value, o, g);
}
}
return JSHINT.errors.length === 0;
};
// Modules.
itself.addModule = function(func) {
extraModules.push(func);
};
itself.addModule(style.register);
// Data summary.
itself.data = function() {
var data = {
functions: [],
options: state.option
};
var implieds = [];
var members = [];
var fu, f, i, j, n, globals;
if (itself.errors.length) {
data.errors = itself.errors;
}
if (state.jsonMode) {
data.json = true;
}
for (n in implied) {
if (_.has(implied, n)) {
implieds.push({
name: n,
line: implied[n]
});
}
}
if (implieds.length > 0) {
data.implieds = implieds;
}
if (urls.length > 0) {
data.urls = urls;
}
globals = Object.keys(scope);
if (globals.length > 0) {
data.globals = globals;
}
for (i = 1; i < functions.length; i += 1) {
f = functions[i];
fu = {};
for (j = 0; j < functionicity.length; j += 1) {
fu[functionicity[j]] = [];
}
for (j = 0; j < functionicity.length; j += 1) {
if (fu[functionicity[j]].length === 0) {
delete fu[functionicity[j]];
}
}
fu.name = f["(name)"];
fu.param = f["(params)"];
fu.line = f["(line)"];
fu.character = f["(character)"];
fu.last = f["(last)"];
fu.lastcharacter = f["(lastcharacter)"];
fu.metrics = {
complexity: f["(metrics)"].ComplexityCount,
parameters: (f["(params)"] || []).length,
statements: f["(metrics)"].statementCount
};
data.functions.push(fu);
}
if (unuseds.length > 0) {
data.unused = unuseds;
}
members = [];
for (n in member) {
if (typeof member[n] === "number") {
data.member = member;
break;
}
}
return data;
};
itself.jshint = itself;
return itself;
}());
// Make JSHINT a Node module, if possible.
if (typeof exports === "object" && exports) {
exports.JSHINT = JSHINT;
}
},{"./lex.js":13,"./messages.js":14,"./options.js":16,"./reg.js":17,"./state.js":18,"./style.js":19,"./vars.js":20,"console-browserify":10,"events":5,"underscore":12}]},{},[]);
JSHINT = require('jshint').JSHINT;
if (typeof exports === 'object' && exports) exports.JSHINT = JSHINT;
}());
/*jshint boss: true, rhino: true, unused: true, undef: true, quotmark: double */
/*global JSHINT, readFully */
(function(args) {
"use strict";
var filenames = [];
var flags = {};
var opts = {};
var globals = {};
var retval = 0;
var readf = (typeof readFully === "function" ? readFully : readFile);
var optstr; // arg1=val1,arg2=val2,...
var predef; // global1=true,global2,global3,...
args.forEach(function(arg) {
if (arg.indexOf("--") === 0) {
// Configuration Flags might be boolean or will be split into name and value
if (arg.indexOf("=") > -1) {
var o = arg.split("=");
flags[o[0].slice(2)] = o[1];
} else {
flags[arg.slice(2)] = true;
}
return;
} else if (arg.indexOf("=") > -1) {
// usual rhino configuration, like "boss=true,browser=true"
if (!optstr) {
// First time it's the options.
optstr = arg;
} else {
predef = arg;
}
return;
}
if (optstr) {
predef = arg;
return;
}
filenames.push(arg);
});
if (filenames.length === 0) {
print("Usage: jshint.js file.js");
quit(1);
}
// If a config flag has been provided, try and load that
if ("config" in flags) {
var cfgFileContent;
try {
cfgFileContent = readf(flags.config);
} catch (e) {
print("Could not read config file " + flags.config);
quit(1);
}
opts = JSON.parse(cfgFileContent);
}
if (optstr) {
optstr.split(",").forEach(function(arg) {
var o = arg.split("=");
if (o[0] === "indent") {
opts[o[0]] = parseInt(o[1], 10);
} else {
opts[o[0]] = (function(ov) {
switch (ov) {
case "true":
return true;
case "false":
return false;
default:
return ov;
}
}(o[1]));
}
});
}
globals = opts.globals || {};
delete(opts.globals);
if (predef) {
predef.split(",").forEach(function(arg) {
var global = arg.split("=");
globals[global[0]] = global[1] === "true" ? true : false;
});
}
filenames.forEach(function(name) {
var input = readf(name);
if (!input) {
print("jshint: Couldn't open file " + name);
quit(1);
}
if (!JSHINT(input, opts, globals)) {
for (var i = 0, err; err = JSHINT.errors[i]; i += 1) {
print(err.reason + " (" + name + ":" + err.line + ":" + err.character + ")");
print("> " + (err.evidence || "").replace(/^\s*(\S*(\s+\S+)*)\s*$/, "$1"));
print("");
}
retval = 2;
}
});
quit(retval);
}(arguments));