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a maven mojo that integrates the 'jshint' javascript preprocessor
// 2.1.9
var JSHINT;
(function () {
var require;
require=(function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0].call(u.exports,function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s 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 = [];
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');
};
},{}],2:[function(require,module,exports){
(function(process){if (!process.EventEmitter) process.EventEmitter = function () {};
var EventEmitter = exports.EventEmitter = process.EventEmitter;
var isArray = typeof Array.isArray === 'function'
? Array.isArray
: function (xs) {
return Object.prototype.toString.call(xs) === '[object Array]'
}
;
function indexOf (xs, x) {
if (xs.indexOf) return xs.indexOf(x);
for (var i = 0; i < xs.length; i++) {
if (x === xs[i]) return i;
}
return -1;
}
// 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.
//
// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
var defaultMaxListeners = 10;
EventEmitter.prototype.setMaxListeners = function(n) {
if (!this._events) this._events = {};
this._events.maxListeners = n;
};
EventEmitter.prototype.emit = function(type) {
// If there is no 'error' event listener then throw.
if (type === 'error') {
if (!this._events || !this._events.error ||
(isArray(this._events.error) && !this._events.error.length))
{
if (arguments[1] instanceof Error) {
throw arguments[1]; // Unhandled 'error' event
} else {
throw new Error("Uncaught, unspecified 'error' event.");
}
return false;
}
}
if (!this._events) return false;
var handler = this._events[type];
if (!handler) return false;
if (typeof handler == 'function') {
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:
var args = Array.prototype.slice.call(arguments, 1);
handler.apply(this, args);
}
return true;
} else if (isArray(handler)) {
var args = Array.prototype.slice.call(arguments, 1);
var listeners = handler.slice();
for (var i = 0, l = listeners.length; i < l; i++) {
listeners[i].apply(this, args);
}
return true;
} else {
return false;
}
};
// EventEmitter is defined in src/node_events.cc
// EventEmitter.prototype.emit() is also defined there.
EventEmitter.prototype.addListener = function(type, listener) {
if ('function' !== typeof listener) {
throw new Error('addListener only takes instances of Function');
}
if (!this._events) this._events = {};
// To avoid recursion in the case that type == "newListeners"! Before
// adding it to the listeners, first emit "newListeners".
this.emit('newListener', type, listener);
if (!this._events[type]) {
// Optimize the case of one listener. Don't need the extra array object.
this._events[type] = listener;
} else if (isArray(this._events[type])) {
// Check for listener leak
if (!this._events[type].warned) {
var m;
if (this._events.maxListeners !== undefined) {
m = this._events.maxListeners;
} else {
m = 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);
console.trace();
}
}
// 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];
}
return this;
};
EventEmitter.prototype.on = EventEmitter.prototype.addListener;
EventEmitter.prototype.once = function(type, listener) {
var self = this;
self.on(type, function g() {
self.removeListener(type, g);
listener.apply(this, arguments);
});
return this;
};
EventEmitter.prototype.removeListener = function(type, listener) {
if ('function' !== typeof listener) {
throw new Error('removeListener only takes instances of Function');
}
// does not use listeners(), so no side effect of creating _events[type]
if (!this._events || !this._events[type]) return this;
var list = this._events[type];
if (isArray(list)) {
var i = indexOf(list, listener);
if (i < 0) return this;
list.splice(i, 1);
if (list.length == 0)
delete this._events[type];
} else if (this._events[type] === listener) {
delete this._events[type];
}
return this;
};
EventEmitter.prototype.removeAllListeners = function(type) {
if (arguments.length === 0) {
this._events = {};
return this;
}
// does not use listeners(), so no side effect of creating _events[type]
if (type && this._events && this._events[type]) this._events[type] = null;
return this;
};
EventEmitter.prototype.listeners = function(type) {
if (!this._events) this._events = {};
if (!this._events[type]) this._events[type] = [];
if (!isArray(this._events[type])) {
this._events[type] = [this._events[type]];
}
return this._events[type];
};
})(require("__browserify_process"))
},{"__browserify_process":1}],3:[function(require,module,exports){
/*
* Regular expressions. Some of these are stupidly long.
*/
/*jshint maxlen:1000 */
"use string";
// Unsafe comment or string (ax)
exports.unsafeString =
/@cc|<\/?|script|\]\s*\]|<\s*!|</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_$][a-zA-Z0-9_$]*)$/;
// JavaScript URL (jx)
exports.javascriptURL = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i;
// Catches /* falls through */ comments (ft)
exports.fallsThrough = /^\s*\/\*\s*falls?\sthrough\s*\*\/\s*$/;
},{}],4:[function(require,module,exports){
(function(){// jshint -W001
"use strict";
// Identifiers provided by the ECMAScript standard.
exports.reservedVars = {
arguments : false,
NaN : false
};
exports.ecmaIdentifiers = {
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,
JSON : false,
Math : false,
Map : false,
Number : false,
Object : false,
parseInt : false,
parseFloat : false,
RangeError : false,
ReferenceError : false,
RegExp : false,
Set : false,
String : false,
SyntaxError : false,
TypeError : false,
URIError : false,
WeakMap : false
};
// Global variables commonly provided by a web browser environment.
exports.browser = {
ArrayBuffer : false,
ArrayBufferView : false,
Audio : false,
Blob : false,
addEventListener : false,
applicationCache : false,
atob : false,
blur : false,
btoa : false,
clearInterval : false,
clearTimeout : false,
close : false,
closed : false,
CustomEvent : false,
DataView : false,
DOMParser : false,
defaultStatus : false,
document : false,
Element : false,
ElementTimeControl : false,
event : false,
FileReader : false,
Float32Array : false,
Float64Array : 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,
Int16Array : false,
Int32Array : false,
Int8Array : false,
Image : false,
length : false,
localStorage : false,
location : false,
MessageChannel : false,
MessageEvent : false,
MessagePort : false,
MouseEvent : false,
moveBy : false,
moveTo : false,
MutationObserver : false,
name : false,
Node : false,
NodeFilter : 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,
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,
TimeEvent : false,
top : false,
Uint16Array : false,
Uint32Array : false,
Uint8Array : false,
Uint8ClampedArray : false,
WebSocket : false,
window : false,
Worker : 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
};
// 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,
Buffer : false,
DataView : false,
console : false,
exports : true, // In Node it is ok to exports = module.exports = foo();
GLOBAL : false,
global : false,
module : false,
process : false,
require : false,
setTimeout : false,
clearTimeout : false,
setInterval : false,
clearInterval : false,
setImmediate : false, // v0.9.1+
clearImmediate: false // v0.9.1+
};
exports.phantom = {
phantom : true,
require : true,
WebPage : true
};
exports.rhino = {
defineClass : false,
deserialize : false,
gc : false,
help : false,
importPackage: false,
"java" : false,
load : false,
loadClass : 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.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,
"$w" : false,
Abstract : false,
Ajax : false,
Class : false,
Enumerable : false,
Element : false,
Event : false,
Field : false,
Form : false,
Hash : false,
Insertion : false,
ObjectRange : false,
PeriodicalExecuter: false,
Position : false,
Prototype : false,
Selector : false,
Template : false,
Toggle : false,
Try : false,
Autocompleter : false,
Builder : false,
Control : false,
Draggable : false,
Draggables : false,
Droppables : false,
Effect : false,
Sortable : false,
SortableObserver : false,
Sound : false,
Scriptaculous : false
};
exports.yui = {
YUI : false,
Y : false,
YUI_config: false
};
})()
},{}],5:[function(require,module,exports){
(function(){"use strict";
exports.register = function (linter) {
// Check for properties named __proto__. This special property was
// deprecated and then re-introduced for ES6.
linter.on("Identifier", function style_scanProto(data) {
if (linter.getOption("proto")) {
return;
}
if (data.name === "__proto__") {
linter.warn("W103", {
line: data.line,
char: data.char,
data: [ data.name ]
});
}
});
// Check for properties named __iterator__. This is a special property
// available only in browsers with JavaScript 1.7 implementation.
linter.on("Identifier", function style_scanIterator(data) {
if (linter.getOption("iterator")) {
return;
}
if (data.name === "__iterator__") {
linter.warn("W104", {
line: data.line,
char: data.char,
data: [ data.name ]
});
}
});
// Check for dangling underscores.
linter.on("Identifier", function style_scanDangling(data) {
if (!linter.getOption("nomen")) {
return;
}
// Underscore.js
if (data.name === "_") {
return;
}
// In Node, __dirname and __filename should be ignored.
if (linter.getOption("node")) {
if (/^(__dirname|__filename)$/.test(data.name) && !data.isProperty) {
return;
}
}
if (/^(_+.*|.*_+)$/.test(data.name)) {
linter.warn("W105", {
line: data.line,
char: data.from,
data: [ "dangling '_'", data.name ]
});
}
});
// Check that all identifiers are using camelCase notation.
// Exceptions: names like MY_VAR and _myVar.
linter.on("Identifier", function style_scanCamelCase(data) {
if (!linter.getOption("camelcase")) {
return;
}
if (data.name.replace(/^_+/, "").indexOf("_") > -1 && !data.name.match(/^[A-Z0-9_]*$/)) {
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|mocha|livescript)\s*:/i;
if (linter.getOption("scripturl")) {
return;
}
if (re.test(data.value)) {
linter.warn("W107", {
line: data.line,
char: data.char
});
}
});
};
})()
},{}],6:[function(require,module,exports){
"use strict";
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.
}
};
exports.state = state;
},{}],7:[function(require,module,exports){
(function(global){/*global window, global*/
var util = require("util")
var assert = require("assert")
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 = window.console = {}
}
var functions = [
[log, "log"]
, [info, "info"]
, [warn, "warn"]
, [error, "error"]
, [time, "time"]
, [timeEnd, "timeEnd"]
, [trace, "trace"]
, [dir, "dir"]
, [assert, "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] = Date.now()
}
function timeEnd(label) {
var time = times[label]
if (!time) {
throw new Error("No such label: " + label)
}
var duration = Date.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 assert(expression) {
if (!expression) {
var arr = slice.call(arguments, 1)
assert.ok(false, util.format.apply(null, arr))
}
}
})(window)
},{"util":8,"assert":9}],"jshint":[function(require,module,exports){
module.exports=require('E/GbHF');
},{}],"E/GbHF":[function(require,module,exports){
(function(){/*!
* 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("../shared/vars.js");
var messages = require("../shared/messages.js");
var Lexer = require("./lex.js").Lexer;
var reg = require("./reg.js");
var state = require("./state.js").state;
var style = require("./style.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 anonname, // The guessed name for anonymous functions.
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
},
// These are the JSHint boolean options.
boolOptions = {
asi : true, // if automatic semicolon insertion should be tolerated
bitwise : true, // if bitwise operators should not be allowed
boss : true, // if advanced usage of assignments should be allowed
browser : true, // if the standard browser globals should be predefined
camelcase : true, // if identifiers should be required in camel case
couch : true, // if CouchDB globals should be predefined
curly : true, // if curly braces around all blocks should be required
debug : true, // if debugger statements should be allowed
devel : true, // if logging globals should be predefined (console, alert, etc.)
dojo : true, // if Dojo Toolkit globals should be predefined
eqeqeq : true, // if === should be required
eqnull : true, // if == null comparisons should be tolerated
es3 : true, // if ES3 syntax should be allowed
es5 : true, // if ES5 syntax should be allowed (is now set per default)
esnext : true, // if es.next specific syntax should be allowed
moz : true, // if mozilla specific syntax should be allowed
evil : true, // if eval should be allowed
expr : true, // if ExpressionStatement should be allowed as Programs
forin : true, // if for in statements must filter
funcscope : true, // if only function scope should be used for scope tests
gcl : true, // if JSHint should be compatible with Google Closure Linter
globalstrict: true, // if global "use strict"; should be allowed (also enables 'strict')
immed : true, // if immediate invocations must be wrapped in parens
iterator : true, // if the `__iterator__` property should be allowed
jquery : true, // if jQuery globals should be predefined
lastsemic : true, // if semicolons may be ommitted for the trailing
// statements inside of a one-line blocks.
laxbreak : true, // if line breaks should not be checked
laxcomma : true, // if line breaks should not be checked around commas
loopfunc : true, // if functions should be allowed to be defined within
// loops
mootools : true, // if MooTools globals should be predefined
multistr : true, // allow multiline strings
newcap : true, // if constructor names must be capitalized
noarg : true, // if arguments.caller and arguments.callee should be
// disallowed
node : true, // if the Node.js environment globals should be
// predefined
noempty : true, // if empty blocks should be disallowed
nonew : true, // if using `new` for side-effects should be disallowed
nonstandard : true, // if non-standard (but widely adopted) globals should
// be predefined
nomen : true, // if names should be checked
onevar : true, // if only one var statement per function should be
// allowed
passfail : true, // if the scan should stop on first error
phantom : true, // if PhantomJS symbols should be allowed
plusplus : true, // if increment/decrement should not be allowed
proto : true, // if the `__proto__` property should be allowed
prototypejs : true, // if Prototype and Scriptaculous globals should be
// predefined
rhino : true, // if the Rhino environment globals should be predefined
shelljs : true, // if ShellJS globals should be predefined
undef : true, // if variables should be declared before used
scripturl : true, // if script-targeted URLs should be tolerated
shadow : true, // if variable shadowing should be tolerated
smarttabs : true, // if smarttabs should be tolerated
// (http://www.emacswiki.org/emacs/SmartTabs)
strict : true, // require the "use strict"; pragma
sub : true, // if all forms of subscript notation are tolerated
supernew : true, // if `new function () { ... };` and `new Object;`
// should be tolerated
trailing : true, // if trailing whitespace rules apply
validthis : true, // if 'this' inside a non-constructor function is valid.
// This is a function scoped option only.
withstmt : true, // if with statements should be allowed
white : true, // if strict whitespace rules apply
worker : true, // if Web Worker script symbols should be allowed
wsh : true, // if the Windows Scripting Host environment globals
// should be predefined
yui : true, // YUI variables should be predefined
// Obsolete options
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)
valOptions = {
maxlen : false,
indent : false,
maxerr : false,
predef : false,
quotmark : false, //'single'|'double'|true
scope : false,
maxstatements: false, // {int} max statements per function
maxdepth : false, // {int} max nested block depth per function
maxparams : false, // {int} max params per function
maxcomplexity: false, // {int} max cyclomatic complexity per function
unused : true, // warn if variables are unused. Available options:
// false - don't check for unused variables
// true - "vars" + check last function param
// "vars" - skip checking unused function params
// "strict" - "vars" + check all function params
latedef : false // warn if the variable is used before its definition
// false - don't emit any warnings
// true - warn if any variable is used before its definition
// "nofunc" - warn for any variable but function declarations
},
// These are JSHint boolean options which are shared with JSLint
// where the definition in JSHint is opposite JSLint
invertedOptions = {
bitwise : true,
forin : true,
newcap : true,
nomen : true,
plusplus: true,
regexp : true,
undef : true,
white : true,
// Inverted and renamed, use JSHint name here
eqeqeq : true,
onevar : true,
strict : true
},
// These are JSHint boolean options which are shared with JSLint
// where the name has been changed but the effect is unchanged
renamedOptions = {
eqeq : "eqeqeq",
vars : "onevar",
windows: "wsh",
sloppy : "strict"
},
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,
noreach,
predefined, // Global variables defined by option
scope, // The current scope
stack,
unuseds,
urls,
warnings,
extraModules = [],
emitter = new events.EventEmitter();
function checkOption(name, t) {
name = name.trim();
if (/^[+-]W\d{3}$/g.test(name)) {
return true;
}
if (valOptions[name] === undefined && boolOptions[name] === undefined) {
if (t.type !== "jslint") {
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(t, o) {
var n;
for (n in o) {
if (_.has(o, n) && !_.has(JSHINT.blacklist, n)) {
t[n] = o[n];
}
}
}
function updatePredefined() {
Object.keys(JSHINT.blacklist).forEach(function (key) {
delete predefined[key];
});
}
function assume() {
if (state.option.es5) {
warning("I003");
}
if (state.option.couch) {
combine(predefined, vars.couch);
}
if (state.option.rhino) {
combine(predefined, vars.rhino);
}
if (state.option.shelljs) {
combine(predefined, vars.shelljs);
combine(predefined, vars.node);
}
if (state.option.phantom) {
combine(predefined, vars.phantom);
}
if (state.option.prototypejs) {
combine(predefined, vars.prototypejs);
}
if (state.option.node) {
combine(predefined, vars.node);
}
if (state.option.devel) {
combine(predefined, vars.devel);
}
if (state.option.dojo) {
combine(predefined, vars.dojo);
}
if (state.option.browser) {
combine(predefined, vars.browser);
}
if (state.option.nonstandard) {
combine(predefined, vars.nonstandard);
}
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);
}
// 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) {
return JSHINT.undefs.push([scope, code, token, a]);
}
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);
if (state.option.passfail) {
quit("E042", l, ch);
}
warnings += 1;
if (warnings >= 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;
}
function addlabel(t, type, tkn, islet) {
// Define t in the current function in the current scope.
if (type === "exception") {
if (_.has(funct["(context)"], t)) {
if (funct[t] !== true && !state.option.node) {
warning("W002", state.tokens.next, t);
}
}
}
if (_.has(funct, t) && !funct["(global)"]) {
if (funct[t] === true) {
if (state.option.latedef) {
if ((state.option.latedef === true && _.contains([funct[t], type], "unction")) ||
!_.contains([funct[t], type], "unction")) {
warning("W003", state.tokens.next, t);
}
}
} else {
if (!state.option.shadow && type !== "exception" ||
(funct["(blockscope)"].getlabel(t))) {
warning("W004", state.tokens.next, t);
}
}
}
// a double definition of a let variable in same block throws a TypeError
if (funct["(blockscope)"] && funct["(blockscope)"].current.has(t)) {
error("E044", state.tokens.next, t);
}
// if the identifier is from a let, adds it only to the current blockscope
if (islet) {
funct["(blockscope)"].current.add(t, type, state.tokens.curr);
} else {
funct[t] = type;
if (tkn) {
funct["(tokens)"][t] = tkn;
}
if (funct["(global)"]) {
global[t] = funct;
if (_.has(implied, t)) {
if (state.option.latedef) {
if ((state.option.latedef === true && _.contains([funct[t], type], "unction")) ||
!_.contains([funct[t], type], "unction")) {
warning("W003", state.tokens.next, t);
}
}
delete implied[t];
}
} else {
scope[t] = 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];
var val = g[1];
if (key.charAt(0) === "-") {
key = key.slice(1);
val = false;
JSHINT.blacklist[key] = key;
updatePredefined();
} 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("\\b", "\b")
.replace("\\t", "\t")
.replace("\\n", "\n")
.replace("\\v", "\v")
.replace("\\f", "\f")
.replace("\\r", "\r")
.replace("\\\\", "\\")
.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;
}
if (key === "indent") {
state.option["(explicitIndent)"] = true;
}
state.option[key] = val;
} else {
if (key === "indent") {
state.option["(explicitIndent)"] = false;
} else {
state.option[key] = false;
}
}
return;
}
if (key === "validthis") {
// `validthis` is valid only within a function scope.
if (funct["(global)"]) {
error("E009");
} else {
if (val === "true" || val === "false") {
state.option.validthis = (val === "true");
} else {
error("E002", nt);
}
}
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 === "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;
}
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 = renamedOptions[key] || key;
state.option[tn] = (val === "true");
if (invertedOptions[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;
}
// 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 (state.tokens.curr.type === "(string)" || state.tokens.curr.identifier) {
anonname = state.tokens.curr.value;
}
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) {
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 !== next.line;
}
return false;
}
// 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;
// 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);
advance();
if (initial) {
anonname = "anonymous";
funct["(verb)"] = state.tokens.curr.value;
}
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);
}
while (rbp < state.tokens.next.lbp && !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();
}
return left;
}
// Functions for conformance of style.
function adjacent(left, right) {
left = left || state.tokens.curr;
right = right || state.tokens.next;
if (state.option.white) {
if (left.character !== right.from && left.line === right.line) {
left.from += (left.character - left.from);
warning("W011", left, left.value);
}
}
}
function nobreak(left, right) {
left = left || state.tokens.curr;
right = right || state.tokens.next;
if (state.option.white && (left.character !== right.from || left.line !== right.line)) {
warning("W012", right, right.value);
}
}
function nospace(left, right) {
left = left || state.tokens.curr;
right = right || state.tokens.next;
if (state.option.white && !left.comment) {
if (left.line === right.line) {
adjacent(left, right);
}
}
}
function nonadjacent(left, right) {
if (state.option.white) {
left = left || state.tokens.curr;
right = right || state.tokens.next;
if (left.value === ";" && right.value === ";") {
return;
}
if (left.line === right.line && left.character === right.from) {
left.from += (left.character - left.from);
warning("W013", left, left.value);
}
}
}
function nobreaknonadjacent(left, right) {
left = left || state.tokens.curr;
right = right || state.tokens.next;
if (!state.option.laxbreak && left.line !== right.line) {
warning("W014", right, right.value);
} else if (state.option.white) {
left = left || state.tokens.curr;
right = right || state.tokens.next;
if (left.character === right.from) {
left.from += (left.character - left.from);
warning("W013", left, left.value);
}
}
}
function indentation(bias) {
if (!state.option.white && !state.option["(explicitIndent)"]) {
return;
}
if (state.tokens.next.id === "(end)") {
return;
}
var i = indent + (bias || 0);
if (state.tokens.next.from !== i) {
warning("W015", state.tokens.next, state.tokens.next.value, i, state.tokens.next.from);
}
}
function nolinebreak(t) {
t = t || state.tokens.curr;
if (t.line !== state.tokens.next.line) {
warning("E022", t, t.value);
}
}
function nobreakcomma(left, right) {
if (left.line !== right.line) {
if (!state.option.laxcomma) {
if (comma.first) {
warning("I001");
comma.first = false;
}
warning("W014", left, right.value);
}
} else if (!left.comment && left.character !== right.from && state.option.white) {
left.from += (left.character - left.from);
warning("W011", left, left.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);
}
// TODO: This is a temporary solution to fight against false-positives in
// arrays and objects with trailing commas (see GH-363). The best solution
// would be to extract all whitespace rules out of parser.
if (state.tokens.next.value !== "]" && state.tokens.next.value !== "}") {
nonadjacent(state.tokens.curr, state.tokens.next);
}
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) {
return symbol(s, 0);
}
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.right = expression(150);
this.arity = "unary";
if (this.id === "++" || this.id === "--") {
if (state.option.plusplus) {
warning("W016", this, this.id);
} else if ((!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);
nonadjacent(state.tokens.curr, state.tokens.next);
}
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) {
if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "arrow function syntax (=>)");
}
nobreaknonadjacent(state.tokens.prev, state.tokens.curr);
nonadjacent(state.tokens.curr, state.tokens.next);
this.left = left;
this.right = doFunction(undefined, undefined, false, 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);
nonadjacent(state.tokens.curr, state.tokens.next);
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");
}
function assignop(s, f, p) {
var x = infix(s, typeof f === "function" ? f : function (left, that) {
that.left = left;
if (left) {
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);
}
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 (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);
}
that.right = expression(10);
return that;
} else if (left.identifier && !isReserved(left)) {
if (funct[left.value] === "exception") {
warning("W022", 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);
}
nonadjacent(state.tokens.prev, state.tokens.curr);
nonadjacent(state.tokens.curr, state.tokens.next);
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) {
if (!state.tokens.next.identifier) {
return;
}
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;
}
// Display an info message about reserved words as properties
// and ES5 but do it only once.
if (prop && !api.getCache("displayed:I002")) {
api.setCache("displayed:I002", true);
warning("I002");
}
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);
if (i) {
return i;
}
if (state.tokens.curr.id === "function" && state.tokens.next.id === "(") {
warning("W025");
} else {
error("E030", state.tokens.next, state.tokens.next.value);
}
}
function reachable(s) {
var i = 0, t;
if (state.tokens.next.id !== ";" || noreach) {
return;
}
for (;;) {
t = peek(i);
if (t.reach) {
return;
}
if (t.id !== "(endline)") {
if (t.id === "function") {
if (!state.option.latedef) {
break;
}
warning("W026", t);
break;
}
warning("W027", t, t.value, s);
break;
}
i += 1;
}
}
function statement(noindent) {
var values;
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 destructuring assignment
if (_.has(["[", "{"], t.value)) {
if (lookupBlockType().isDestAssign) {
if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "destructuring expression");
}
values = destructuringExpression();
values.forEach(function (tok) {
isundef(funct, "W117", tok.token, tok.id);
});
advance("=");
destructuringExpressionMatch(values, expression(10, true));
advance(";");
return;
}
}
if (t.identifier && !res && peek().id === ":") {
advance();
advance(":");
scope = Object.create(s);
addlabel(t.value, "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 === "{") {
block(true, true);
return;
}
// Parse the statement.
if (!noindent) {
indentation();
}
r = expression(0, true);
// 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);
}
if (state.tokens.next.id !== ";") {
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 !== "}" ||
state.tokens.next.line !== state.tokens.curr.line) {
warningAt("W033", state.tokens.curr.line, state.tokens.curr.character);
}
}
} else {
adjacent(state.tokens.curr, state.tokens.next);
advance(";");
nonadjacent(state.tokens.curr, state.tokens.next);
}
}
// Restore the indentation.
indent = i;
scope = s;
return r;
}
function statements(startLine) {
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(startLine === state.tokens.next.line));
}
}
return a;
}
/*
* read all directives
* recognizes a simple form of asi, but always
* warns, if it is used
*/
function directives() {
var i, p, pn;
for (;;) {
if (state.tokens.next.id === "(string)") {
p = peek(0);
if (p.id === "(endline)") {
i = 1;
do {
pn = peek(i);
i = i + 1;
} while (pn.id === "(endline)");
if (pn.id !== ";") {
if (pn.id !== "(string)" && pn.id !== "(number)" &&
pn.id !== "(regexp)" && pn.identifier !== true &&
pn.id !== "}") {
break;
}
warning("W033", state.tokens.next);
} else {
p = pn;
}
} else if (p.id === "}") {
// Directive with no other statements, warn about missing semicolon
warning("W033", p);
} else if (p.id !== ";") {
break;
}
indentation();
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(";");
}
continue;
}
break;
}
}
/*
* 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
*/
function block(ordinary, stmt, isfunc, isfatarrow) {
var a,
b = inblock,
old_indent = indent,
m,
s = scope,
t,
line,
d;
inblock = ordinary;
if (!ordinary || !state.option.funcscope)
scope = Object.create(scope);
nonadjacent(state.tokens.curr, state.tokens.next);
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(line);
metrics.statementCount += a.length;
if (isfunc) {
state.directive = m;
}
indent -= state.option.indent;
if (line !== state.tokens.next.line) {
indentation();
}
} else if (line !== state.tokens.next.line) {
indentation();
}
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);
}
noreach = true;
indent += state.option.indent;
// test indentation only if statement is in new line
a = [statement(state.tokens.next.line === state.tokens.curr.line)];
indent -= state.option.indent;
noreach = false;
delete funct["(nolet)"];
}
funct["(verb)"] = null;
if (!ordinary || !state.option.funcscope) scope = s;
inblock = b;
if (ordinary && state.option.noempty && (!a || a.length === 0)) {
warning("W035");
}
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, line = tkn.line, a = implied[name];
if (typeof a === "function") {
a = false;
}
if (!a) {
a = [line];
implied[name] = a;
} else if (a[a.length - 1] !== line) {
a.push(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,
s = scope[v],
f;
if (typeof s === "function") {
// Protection against accidental inheritance.
s = undefined;
} else if (typeof s === "boolean") {
f = funct;
funct = functions[0];
addlabel(v, "var");
s = funct;
funct = f;
}
var block;
if (_.has(funct, "(blockscope)")) {
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 "function":
this["function"] = true;
break;
case "label":
warning("W037", state.tokens.curr, v);
break;
}
} else if (funct["(global)"]) {
// The name is not defined in the function. If we are in the global
// scope, then we have an undefined variable.
//
// Operators typeof and delete do not raise runtime errors even if
// the base object of a reference is null so no need to display warning
// if we're inside of typeof or delete.
if (typeof predefined[v] !== "boolean") {
// Attempting to subscript a null reference will throw an
// error, even within the typeof and delete operators
if (!(anonname === "typeof" || anonname === "delete") ||
(state.tokens.next && (state.tokens.next.value === "." ||
state.tokens.next.value === "["))) {
// 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);
}
}
}
note_implied(state.tokens.curr);
} 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") {
// Operators typeof and delete do not raise runtime errors even
// if the base object of a reference is null so no need to
//
// display warning if we're inside of typeof or delete.
// Attempting to subscript a null reference will throw an
// error, even within the typeof and delete operators
if (!(anonname === "typeof" || anonname === "delete") ||
(state.tokens.next &&
(state.tokens.next.value === "." || state.tokens.next.value === "["))) {
isundef(funct, "W117", state.tokens.curr, v);
}
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 "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);
}
};
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"] && !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("&=", "assignbitand", 20);
bitwiseassignop("|=", "assignbitor", 20);
bitwiseassignop("^=", "assignbitxor", 20);
bitwiseassignop("<<=", "assignshiftleft", 20);
bitwiseassignop(">>=", "assignshiftright", 20);
bitwiseassignop(">>>=", "assignshiftrightunsigned", 20);
infix(",", function (left, that) {
var expr;
that.exprs = [left];
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");
if (!eqnull && state.option.eqeqeq)
warning("W116", this, "===", "==");
else if (isPoorRelation(left))
warning("W041", this, "===", left.value);
else if (isPoorRelation(right))
warning("W041", this, "===", right.value);
return this;
});
relation("===");
relation("!=", function (left, right) {
var eqnull = state.option.eqnull &&
(left.value === "null" || right.value === "null");
if (!eqnull && state.option.eqeqeq) {
warning("W116", this, "!==", "!=");
} else if (isPoorRelation(left)) {
warning("W041", this, "!==", left.value);
} else if (isPoorRelation(right)) {
warning("W041", this, "!==", right.value);
}
return this;
});
relation("!==");
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 = 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;
}
that.left = left;
that.right = right;
return that;
}, 130);
prefix("+", "num");
prefix("+++", function () {
warning("W007");
this.right = expression(150);
this.arity = "unary";
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.right = expression(150);
this.arity = "unary";
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("++", "postinc");
prefix("++", "preinc");
state.syntax["++"].exps = true;
suffix("--", "postdec");
prefix("--", "predec");
state.syntax["--"].exps = true;
prefix("delete", function () {
var p = expression(10);
if (!p || (p.id !== "." && p.id !== "[")) {
warning("W051");
}
this.first = p;
return this;
}).exps = true;
prefix("~", function () {
if (state.option.bitwise) {
warning("W052", this, "~");
}
expression(150);
return this;
});
prefix("...", function () {
if (!state.option.inESNext()) {
warning("W104", this, "spread/rest operator");
}
if (!state.tokens.next.identifier) {
error("E030", state.tokens.next, state.tokens.next.value);
}
expression(150);
return this;
});
prefix("!", function () {
this.right = expression(150);
this.arity = "unary";
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", "typeof");
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 "Function":
if (!state.option.evil) {
warning("W054");
}
break;
case "Date":
case "RegExp":
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);
}
adjacent(state.tokens.curr, state.tokens.next);
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) {
adjacent(state.tokens.prev, state.tokens.curr);
nobreak();
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")) {
warning("W061");
}
return that;
}, 160, true);
infix("(", function (left, that) {
if (state.tokens.prev.id !== "}" && state.tokens.prev.id !== ")") {
nobreak(state.tokens.prev, state.tokens.curr);
}
nospace();
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".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(")");
nospace(state.tokens.prev, state.tokens.curr);
if (typeof left === "object") {
if (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 !== "?") {
warning("W067", left);
}
}
that.left = left;
return that;
}, 155, true).exps = true;
prefix("(", function () {
nospace();
var bracket, brackets = [];
var pn, pn1, i = 0;
var ret;
do {
pn = peek(i);
i += 1;
pn1 = peek(i);
i += 1;
} while (pn.value !== ")" && pn1.value !== "=>" && pn1.value !== ";" && pn1.type !== "(end)");
if (state.tokens.next.id === "function") {
state.tokens.next.immed = true;
}
var exprs = [];
if (state.tokens.next.id !== ")") {
for (;;) {
if (pn1.value === "=>" && state.tokens.next.value === "{") {
bracket = state.tokens.next;
bracket.left = destructuringExpression();
brackets.push(bracket);
for (var t in bracket.left) {
exprs.push(bracket.left[t].token);
}
} else {
exprs.push(expression(10));
}
if (state.tokens.next.id !== ",") {
break;
}
comma();
}
}
advance(")", this);
nospace(state.tokens.prev, state.tokens.curr);
if (state.option.immed && exprs[0] && exprs[0].id === "function") {
if (state.tokens.next.id !== "(" &&
(state.tokens.next.id !== "." || (peek().value !== "call" && peek().value !== "apply"))) {
warning("W068", this);
}
}
if (state.tokens.next.value === "=>") {
return exprs;
}
if (!exprs.length) {
return;
}
if (exprs.length > 1) {
ret = Object.create(state.syntax[","]);
ret.exprs = exprs;
} else {
ret = exprs[0];
}
if (ret) {
ret.paren = true;
}
return ret;
});
application("=>");
infix("[", function (left, that) {
nobreak(state.tokens.prev, state.tokens.curr);
nospace();
var e = expression(10), s;
if (e && e.type === "(string)") {
if (!state.option.evil && (e.value === "eval" || e.value === "execScript")) {
warning("W061", that);
}
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");
}
nospace(state.tokens.prev, state.tokens.curr);
that.left = left;
that.right = e;
return that;
}, 160, true);
function comprehensiveArrayExpression() {
var res = {};
res.exps = true;
funct["(comparray)"].stack();
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(10);
advance(")");
if (state.tokens.next.value === "if") {
advance("if");
advance("(");
funct["(comparray)"].setState("filter");
res.filter = expression(10);
advance(")");
}
advance("]");
funct["(comparray)"].unstack();
return res;
}
prefix("[", function () {
var blocktype = lookupBlockType(true);
if (blocktype.isCompArray) {
if (!state.option.inMoz(true)) {
warning("W118", 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 !== state.tokens.next.line;
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.inES5())
warning("W070");
advance(",");
}
if (state.tokens.next.id === "]") {
break;
}
if (b && state.tokens.curr.line !== state.tokens.next.line) {
indentation();
}
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;
indentation();
}
advance("]", this);
return this;
}, 160);
function property_name() {
var id = optionalidentifier(false, true);
if (!id) {
if (state.tokens.next.id === "(string)") {
id = state.tokens.next.value;
advance();
} else if (state.tokens.next.id === "(number)") {
id = state.tokens.next.value.toString();
advance();
}
}
if (id === "hasOwnProperty") {
warning("W001");
}
return id;
}
function functionparams(parsed) {
var curr, next;
var params = [];
var ident;
var tokens = [];
var t;
var pastDefault = false;
if (parsed) {
if (parsed instanceof Array) {
for (var i in parsed) {
curr = parsed[i];
if (_.contains(["{", "["], curr.id)) {
for (t in curr.left) {
t = tokens[t];
if (t.id) {
params.push(t.id);
addlabel(t.id, "unused", t.token);
}
}
} else if (curr.value === "...") {
if (!state.option.inESNext()) {
warning("W104", curr, "spread/rest operator");
}
continue;
} else {
addlabel(curr.value, "unused", curr);
}
}
return params;
} else {
if (parsed.identifier === true) {
addlabel(parsed.value, "unused", parsed);
return [parsed];
}
}
}
next = state.tokens.next;
advance("(");
nospace();
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, "unused", t.token);
}
}
} else if (state.tokens.next.value === "...") {
if (!state.option.inESNext()) {
warning("W104", state.tokens.next, "spread/rest operator");
}
advance("...");
nospace();
ident = identifier(true);
params.push(ident);
addlabel(ident, "unused", state.tokens.curr);
} else {
ident = identifier(true);
params.push(ident);
addlabel(ident, "unused", 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);
nospace(state.tokens.prev, state.tokens.curr);
return params;
}
}
}
function doFunction(name, statement, generator, fatarrowparams) {
var f;
var oldOption = state.option;
var oldIgnored = state.ignored;
var oldScope = scope;
state.option = Object.create(state.option);
state.ignored = Object.create(state.ignored);
scope = Object.create(scope);
funct = {
"(name)" : name || "\"" + anonname + "\"",
"(line)" : state.tokens.next.line,
"(character)" : state.tokens.next.character,
"(context)" : funct,
"(breakage)" : 0,
"(loopage)" : 0,
"(metrics)" : createMetrics(state.tokens.next),
"(scope)" : scope,
"(statement)" : statement,
"(tokens)" : {},
"(blockscope)": funct["(blockscope)"],
"(comparray)" : funct["(comparray)"]
};
if (generator) {
funct["(generator)"] = true;
}
f = funct;
state.tokens.curr.funct = funct;
functions.push(funct);
if (name) {
addlabel(name, "function");
}
funct["(params)"] = functionparams(fatarrowparams);
funct["(metrics)"].verifyMaxParametersPerFunction(funct["(params)"]);
block(false, true, true, fatarrowparams ? true:false);
if (generator && funct["(generator)"] !== "yielded") {
error("E047", 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;
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");
}
}
}
(function (x) {
x.nud = function (isclassdef) {
var b, f, i, p, t, g;
var props = {}; // All properties, including accessors
var tag = "";
function saveProperty(name, tkn) {
if (props[name] && _.has(props, name))
warning("W075", state.tokens.next, i);
else
props[name] = {};
props[name].basic = true;
props[name].basictkn = tkn;
}
function saveSetter(name, tkn) {
if (props[name] && _.has(props, name)) {
if (props[name].basic || props[name].setter)
warning("W075", state.tokens.next, i);
} else {
props[name] = {};
}
props[name].setter = true;
props[name].setterToken = tkn;
}
function saveGetter(name) {
if (props[name] && _.has(props, name)) {
if (props[name].basic || props[name].getter)
warning("W075", state.tokens.next, i);
} else {
props[name] = {};
}
props[name].getter = true;
props[name].getterToken = state.tokens.curr;
}
b = state.tokens.curr.line !== state.tokens.next.line;
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;
}
if (b) {
indentation();
}
if (isclassdef && state.tokens.next.value === "static") {
advance("static");
tag = "static ";
}
if (state.tokens.next.value === "get" && peek().id !== ":") {
advance("get");
if (!state.option.inES5(!isclassdef)) {
error("E034");
}
i = property_name();
if (!i) {
error("E035");
}
// It is a Syntax Error if PropName of MethodDefinition is
// "constructor" and SpecialMethod of MethodDefinition is true.
if (isclassdef && i === "constructor") {
error("E049", state.tokens.next, "class getter method", i);
}
saveGetter(tag + i);
t = state.tokens.next;
adjacent(state.tokens.curr, state.tokens.next);
f = doFunction();
p = f["(params)"];
if (p) {
warning("W076", t, p[0], i);
}
adjacent(state.tokens.curr, state.tokens.next);
} else if (state.tokens.next.value === "set" && peek().id !== ":") {
advance("set");
if (!state.option.inES5(!isclassdef)) {
error("E034");
}
i = property_name();
if (!i) {
error("E035");
}
// It is a Syntax Error if PropName of MethodDefinition is
// "constructor" and SpecialMethod of MethodDefinition is true.
if (isclassdef && i === "constructor") {
error("E049", state.tokens.next, "class setter method", i);
}
saveSetter(tag + i, state.tokens.next);
t = state.tokens.next;
adjacent(state.tokens.curr, state.tokens.next);
f = doFunction();
p = f["(params)"];
if (!p || p.length !== 1) {
warning("W077", t, i);
}
} else {
g = false;
if (state.tokens.next.value === "*" && state.tokens.next.type === "(punctuator)") {
if (!state.option.inESNext()) {
warning("W104", state.tokens.next, "generator functions");
}
advance("*");
g = true;
}
i = property_name();
saveProperty(tag + 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(i, undefined, g);
} else if (!isclassdef) {
advance(":");
nonadjacent(state.tokens.curr, state.tokens.next);
expression(10);
}
}
// It is a Syntax Error if PropName of MethodDefinition is "prototype".
if (isclassdef && i === "prototype") {
error("E049", state.tokens.next, "class method", i);
}
countMember(i);
if (isclassdef) {
tag = "";
continue;
}
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;
indentation();
}
advance("}", this);
// Check for lonely setters if in the ES5 mode.
if (state.option.inES5()) {
for (var name in props) {
if (_.has(props, name) && props[name].setter && !props[name].getter) {
warning("W078", props[name].setterToken);
}
}
}
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 (_.contains(["[", "{"], state.tokens.next.value)) {
ids = destructuringExpression();
for (var id in ids) {
id = ids[id];
identifiers.push({ id: id.id, token: id.token });
}
} else if (state.tokens.next.value === ",") {
identifiers.push({ id: null, token: state.tokens.curr });
} else {
ident = identifier();
if (ident)
identifiers.push({ id: ident, token: state.tokens.curr });
}
};
if (state.tokens.next.value === "[") {
advance("[");
nextInnerDE();
while (state.tokens.next.value !== "]") {
advance(",");
nextInnerDE();
}
advance("]");
} else if (state.tokens.next.value === "{") {
advance("{");
id = identifier();
if (state.tokens.next.value === ":") {
advance(":");
nextInnerDE();
} else {
identifiers.push({ id: id, token: state.tokens.curr });
}
while (state.tokens.next.value !== "}") {
advance(",");
id = identifier();
if (state.tokens.next.value === ":") {
advance(":");
nextInnerDE();
} else {
identifiers.push({ id: id, token: state.tokens.curr });
}
}
advance("}");
}
return identifiers;
}
function destructuringExpressionMatch(tokens, value) {
if (value.first) {
_.zip(tokens, value.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);
} /* else {
XXX value is discarded: wouldn't it need a warning ?
} */
});
}
}
var conststatement = stmt("const", function (prefix) {
var tokens, value;
// state variable to know if it is a lone identifier, or a destructuring statement.
var lone;
if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "const");
}
this.first = [];
for (;;) {
var names = [];
nonadjacent(state.tokens.curr, state.tokens.next);
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) {
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, "const");
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 === "=") {
nonadjacent(state.tokens.curr, state.tokens.next);
advance("=");
nonadjacent(state.tokens.curr, state.tokens.next);
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;
if (funct["(onevar)"] && state.option.onevar) {
warning("W081");
} else if (!funct["(global)"]) {
funct["(onevar)"] = true;
}
this.first = [];
for (;;) {
var names = [];
nonadjacent(state.tokens.curr, state.tokens.next);
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) {
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) {
addlabel(t.id, "unused", t.token);
names.push(t.token);
}
}
if (prefix) {
break;
}
this.first = this.first.concat(names);
if (state.tokens.next.id === "=") {
nonadjacent(state.tokens.curr, state.tokens.next);
advance("=");
nonadjacent(state.tokens.curr, state.tokens.next);
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;
});
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);
}
if (funct["(onevar)"] && state.option.onevar) {
warning("W081");
} else if (!funct["(global)"]) {
funct["(onevar)"] = true;
}
this.first = [];
for (;;) {
var names = [];
nonadjacent(state.tokens.curr, state.tokens.next);
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) {
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, "unused", t.token, true);
names.push(t.token);
}
}
if (prefix) {
break;
}
this.first = this.first.concat(names);
if (state.tokens.next.id === "=") {
nonadjacent(state.tokens.curr, state.tokens.next);
advance("=");
nonadjacent(state.tokens.curr, state.tokens.next);
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(stmt) {
/*jshint validthis:true */
if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "class");
}
if (stmt) {
// BindingIdentifier
this.name = identifier();
addlabel(this.name, "unused", state.tokens.curr);
} else if (state.tokens.next.identifier && state.tokens.next.value !== "extends") {
// BindingIdentifier(opt)
this.name = identifier();
}
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 = state.syntax["{"].nud(true);
state.directive["use strict"] = strictness;
}
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 = identifier();
if (funct[i] === "const") {
warning("E011", null, i);
}
adjacent(state.tokens.curr, state.tokens.next);
addlabel(i, "unction", state.tokens.curr);
doFunction(i, { statement: true }, generator);
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();
if (i || state.option.gcl) {
adjacent(state.tokens.curr, state.tokens.next);
} else {
nonadjacent(state.tokens.curr, state.tokens.next);
}
doFunction(i, undefined, generator);
if (!state.option.loopfunc && funct["(loopage)"]) {
warning("W083");
}
return this;
});
blockstmt("if", function () {
var t = state.tokens.next;
increaseComplexityCount();
state.condition = true;
advance("(");
nonadjacent(this, t);
nospace();
checkCondAssignment(expression(0));
advance(")", t);
state.condition = false;
nospace(state.tokens.prev, state.tokens.curr);
block(true, true);
if (state.tokens.next.id === "else") {
nonadjacent(state.tokens.curr, state.tokens.next);
advance("else");
if (state.tokens.next.id === "if" || state.tokens.next.id === "switch") {
statement(true);
} else {
block(true, true);
}
}
return this;
});
blockstmt("try", function () {
var b;
function doCatch() {
var oldScope = scope;
var e;
advance("catch");
nonadjacent(state.tokens.curr, state.tokens.next);
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 = {
"(name)" : "(catch)",
"(line)" : state.tokens.next.line,
"(character)": state.tokens.next.character,
"(context)" : funct,
"(breakage)" : funct["(breakage)"],
"(loopage)" : funct["(loopage)"],
"(scope)" : scope,
"(statement)": false,
"(metrics)" : createMetrics(state.tokens.next),
"(catch)" : true,
"(tokens)" : {},
"(blockscope)": funct["(blockscope)"],
"(comparray)": funct["(comparray)"]
};
if (e) {
addlabel(e, "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(false);
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(false);
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("(");
nonadjacent(this, t);
nospace();
checkCondAssignment(expression(0));
advance(")", t);
nospace(state.tokens.prev, state.tokens.curr);
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("(");
nonadjacent(this, t);
nospace();
expression(0);
advance(")", t);
nospace(state.tokens.prev, state.tokens.curr);
block(true, true);
return this;
});
blockstmt("switch", function () {
var t = state.tokens.next,
g = false;
funct["(breakage)"] += 1;
advance("(");
nonadjacent(this, t);
nospace();
checkCondAssignment(expression(0));
advance(")", t);
nospace(state.tokens.prev, state.tokens.curr);
nonadjacent(state.tokens.curr, state.tokens.next);
t = state.tokens.next;
advance("{");
nonadjacent(state.tokens.curr, state.tokens.next);
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");
}
}
indentation(-state.option.indent);
advance("case");
this.cases.push(expression(20));
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");
}
}
}
indentation(-state.option.indent);
advance("default");
g = true;
advance(":");
break;
case "}":
indent -= state.option.indent;
indentation();
advance("}", t);
funct["(breakage)"] -= 1;
funct["(verb)"] = undefined;
return;
case "(end)":
error("E023", state.tokens.next, "}");
return;
default:
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;
}
}
}
}
}).labelled = true;
stmt("debugger", function () {
if (!state.option.debug) {
warning("W087");
}
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;
nonadjacent(state.tokens.curr, t);
advance("(");
nospace();
checkCondAssignment(expression(0));
advance(")", t);
nospace(state.tokens.prev, state.tokens.curr);
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("(");
nonadjacent(this, t);
nospace();
// 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 {
switch (funct[state.tokens.next.value]) {
case "unused":
funct[state.tokens.next.value] = "var";
break;
case "var":
break;
default:
if (!funct["(blockscope)"].getlabel(state.tokens.next.value))
warning("W088", state.tokens.next, state.tokens.next.value);
}
advance();
}
advance(nextop.value);
expression(20);
advance(")", t);
s = block(true, true);
if (state.option.forin && s && (s.length > 1 || typeof s[0] !== "object" ||
s[0].value !== "if")) {
warning("W089", this);
}
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);
nospace(state.tokens.prev, state.tokens.curr);
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 === state.tokens.next.line) {
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("break");
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 === state.tokens.next.line) {
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("continue");
return this;
}).exps = true;
stmt("return", function () {
if (this.line === state.tokens.next.line) {
if (state.tokens.next.id === "(regexp)")
warning("W092");
if (state.tokens.next.id !== ";" && !state.tokens.next.reach) {
nonadjacent(state.tokens.curr, state.tokens.next);
this.first = expression(0);
if (this.first &&
this.first.type === "(punctuator)" && this.first.value === "=" && !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("return");
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)"]) {
error("E046", state.tokens.curr, "yield");
} else if (!state.option.inESNext()) {
warning("W104", state.tokens.curr, "yield");
}
funct["(generator)"] = "yielded";
if (this.line === state.tokens.next.line || !state.option.inMoz(true)) {
if (state.tokens.next.id === "(regexp)")
warning("W092");
if (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 === "=" && !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);
nonadjacent(state.tokens.curr, state.tokens.next);
this.first = expression(20);
reachable("throw");
return this;
}).exps = true;
stmt("import", function () {
if (!state.option.inESNext()) {
warning("W119", state.tokens.curr, "import");
}
if (state.tokens.next.identifier) {
this.name = identifier();
addlabel(this.name, "unused", state.tokens.curr);
} else {
advance("{");
for (;;) {
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, "unused", 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;
}
}
}
advance("from");
advance("(string)");
return this;
}).exps = true;
stmt("export", function () {
if (!state.option.inESNext()) {
warning("W119", state.tokens.curr, "export");
}
if (state.tokens.next.type === "default") {
advance("default");
if (state.tokens.next.id === "function" || state.tokens.next.id === "class") {
this.block = true;
}
this.exportee = expression(10);
return this;
}
if (state.tokens.next.value === "{") {
advance("{");
for (;;) {
identifier();
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;
}
}
return this;
}
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");
state.syntax["let"].fud.call(state.syntax["let"].fud);
} else if (state.tokens.next.id === "const") {
advance("const");
state.syntax["const"].fud.call(state.syntax["const"].fud);
} else if (state.tokens.next.id === "function") {
this.block = true;
advance("function");
state.syntax["function"].fud();
} else if (state.tokens.next.id === "class") {
this.block = true;
advance("class");
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("throws");
FutureReservedWord("transient");
FutureReservedWord("volatile");
// this function is used to determine wether a squarebracket or a curlybracket
// expression is a comprehension array, destructuring assignment or a json value.
var lookupBlockType = function () {
var pn, pn1;
var i = 0;
var bracketStack = 0;
var ret = {};
if (_.contains(["[", "{"], state.tokens.curr.value))
bracketStack += 1;
if (_.contains(["[", "{"], state.tokens.next.value))
bracketStack += 1;
if (_.contains(["]", "}"], state.tokens.next.value))
bracketStack -= 1;
do {
pn = peek(i);
pn1 = peek(i + 1);
i = i + 1;
if (_.contains(["[", "{"], pn.value)) {
bracketStack += 1;
} else if (_.contains(["]", "}"], pn.value)) {
bracketStack -= 1;
}
if (pn.identifier && pn.value === "for" && bracketStack === 1) {
ret.isCompArray = true;
ret.notJson = true;
break;
}
if (_.contains(["}", "]"], pn.value) && pn1.value === "=") {
ret.isDestAssign = true;
ret.notJson = true;
break;
}
if (pn.value === ";") {
ret.isBlock = true;
ret.notJson = true;
}
} while (bracketStack > 0 && pn.id !== "(end)" && i < 15);
return ret;
};
// 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.value);
if (v.undef)
isundef(v.funct, "W117", v.token, v.value);
});
_carrays.splice(_carrays[_carrays.length - 1], 1);
_current = _carrays[_carrays.length - 1];
},
setState: function (s) {
if (_.contains(["use", "define", "filter"], s))
_current.mode = s;
},
check: function (v) {
// When we are in "use" state of the list comp, we enqueue that var
if (_current && _current.mode === "use") {
_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 "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, 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("-");
if (state.tokens.curr.character !== state.tokens.next.from) {
warning("W011", state.tokens.curr);
}
adjacent(state.tokens.curr, state.tokens.next);
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)"];
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)) {
return _variables[i];
}
}
},
current: {
has: function (t) {
return _.has(_current, t);
},
add: function (t, type, tok) {
_current[t] = { "(type)" : type,
"(token)": tok };
}
}
};
};
// The actual JSHINT function itself.
var itself = function (s, o, g) {
var i, k, x;
var optionKeys;
var newOptionObj = {};
var newIgnoredObj = {};
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);
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;
} 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;
if (optionKeys[x] === "indent")
newOptionObj["(explicitIndent)"] = o[optionKeys[x]] === false ? false : 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 = {
"(global)": true,
"(name)": "(global)",
"(scope)": scope,
"(breakage)": 0,
"(loopage)": 0,
"(tokens)": {},
"(metrics)": createMetrics(state.tokens.next),
"(blockscope)": blockScope(),
"(comparray)": arrayComprehension()
};
functions = [funct];
urls = [];
stack = null;
member = {};
membersOnly = null;
implied = {};
inblock = false;
lookahead = [];
warnings = 0;
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)"];
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 && !state.option.node) {
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.character;
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) {
warningAt("W098", line, chr, 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")
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;
}
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])) {
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)) {
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)"];
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;
}
})()
},{"events":2,"./lex.js":10,"./reg.js":3,"../shared/vars.js":4,"../shared/messages.js":11,"./state.js":6,"./style.js":5,"console-browserify":7,"underscore":12}],11:[function(require,module,exports){
(function(){"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 '[' form 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, // Vacant
E038: null, // Vacant
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: "'{a}' is already defined and can't be redefined.",
E045: "Invalid for each loop.",
E046: "A yield statement shall be within a generator function (with syntax: `function*`)",
E047: "A generator function shall contain a yield statement.",
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."
};
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 pluses.",
W008: "A leading decimal point can be confused with a dot: '{a}'.",
W009: "The array literal notation [] is preferrable.",
W010: "The object literal notation {} is preferrable.",
W011: "Unexpected space after '{a}'.",
W012: "Unexpected space before '{a}'.",
W013: "Missing space after '{a}'.",
W014: "Bad line breaking before '{a}'.",
W015: "Expected '{a}' to have an indentation at {b} instead at {c}.",
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.",
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' unnecessary?",
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 key '{a}'.",
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: "Too many var statements.",
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.",
W092: "Wrap the /regexp/ literal in parens to disambiguate the slash operator.",
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: "Mixed spaces and tabs.",
W100: "This character may get silently deleted by one or more browsers.",
W101: "Line is too long.",
W102: "Trailing whitespace.",
W103: "The '{a}' property is deprecated.",
W104: "'{a}' is only available in JavaScript 1.7.",
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."
};
var info = {
I001: "Comma warnings can be turned off with 'laxcomma'.",
I002: "Reserved words as properties can be used under the 'es5' option.",
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}],10:[function(require,module,exports){
(function(){/*
* 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;
// 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
};
// This is auto generated from the unicode tables.
// The tables are at:
// http://www.fileformat.info/info/unicode/category/Lu/list.htm
// http://www.fileformat.info/info/unicode/category/Ll/list.htm
// http://www.fileformat.info/info/unicode/category/Lt/list.htm
// http://www.fileformat.info/info/unicode/category/Lm/list.htm
// http://www.fileformat.info/info/unicode/category/Lo/list.htm
// http://www.fileformat.info/info/unicode/category/Nl/list.htm
var unicodeLetterTable = [
170, 170, 181, 181, 186, 186, 192, 214,
216, 246, 248, 705, 710, 721, 736, 740, 748, 748, 750, 750,
880, 884, 886, 887, 890, 893, 902, 902, 904, 906, 908, 908,
910, 929, 931, 1013, 1015, 1153, 1162, 1319, 1329, 1366,
1369, 1369, 1377, 1415, 1488, 1514, 1520, 1522, 1568, 1610,
1646, 1647, 1649, 1747, 1749, 1749, 1765, 1766, 1774, 1775,
1786, 1788, 1791, 1791, 1808, 1808, 1810, 1839, 1869, 1957,
1969, 1969, 1994, 2026, 2036, 2037, 2042, 2042, 2048, 2069,
2074, 2074, 2084, 2084, 2088, 2088, 2112, 2136, 2308, 2361,
2365, 2365, 2384, 2384, 2392, 2401, 2417, 2423, 2425, 2431,
2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482,
2486, 2489, 2493, 2493, 2510, 2510, 2524, 2525, 2527, 2529,
2544, 2545, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608,
2610, 2611, 2613, 2614, 2616, 2617, 2649, 2652, 2654, 2654,
2674, 2676, 2693, 2701, 2703, 2705, 2707, 2728, 2730, 2736,
2738, 2739, 2741, 2745, 2749, 2749, 2768, 2768, 2784, 2785,
2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867,
2869, 2873, 2877, 2877, 2908, 2909, 2911, 2913, 2929, 2929,
2947, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970,
2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 3001,
3024, 3024, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123,
3125, 3129, 3133, 3133, 3160, 3161, 3168, 3169, 3205, 3212,
3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3261, 3261,
3294, 3294, 3296, 3297, 3313, 3314, 3333, 3340, 3342, 3344,
3346, 3386, 3389, 3389, 3406, 3406, 3424, 3425, 3450, 3455,
3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526,
3585, 3632, 3634, 3635, 3648, 3654, 3713, 3714, 3716, 3716,
3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743,
3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3760,
3762, 3763, 3773, 3773, 3776, 3780, 3782, 3782, 3804, 3805,
3840, 3840, 3904, 3911, 3913, 3948, 3976, 3980, 4096, 4138,
4159, 4159, 4176, 4181, 4186, 4189, 4193, 4193, 4197, 4198,
4206, 4208, 4213, 4225, 4238, 4238, 4256, 4293, 4304, 4346,
4348, 4348, 4352, 4680, 4682, 4685, 4688, 4694, 4696, 4696,
4698, 4701, 4704, 4744, 4746, 4749, 4752, 4784, 4786, 4789,
4792, 4798, 4800, 4800, 4802, 4805, 4808, 4822, 4824, 4880,
4882, 4885, 4888, 4954, 4992, 5007, 5024, 5108, 5121, 5740,
5743, 5759, 5761, 5786, 5792, 5866, 5870, 5872, 5888, 5900,
5902, 5905, 5920, 5937, 5952, 5969, 5984, 5996, 5998, 6000,
6016, 6067, 6103, 6103, 6108, 6108, 6176, 6263, 6272, 6312,
6314, 6314, 6320, 6389, 6400, 6428, 6480, 6509, 6512, 6516,
6528, 6571, 6593, 6599, 6656, 6678, 6688, 6740, 6823, 6823,
6917, 6963, 6981, 6987, 7043, 7072, 7086, 7087, 7104, 7141,
7168, 7203, 7245, 7247, 7258, 7293, 7401, 7404, 7406, 7409,
7424, 7615, 7680, 7957, 7960, 7965, 7968, 8005, 8008, 8013,
8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061,
8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140,
8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188,
8305, 8305, 8319, 8319, 8336, 8348, 8450, 8450, 8455, 8455,
8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486,
8488, 8488, 8490, 8493, 8495, 8505, 8508, 8511, 8517, 8521,
8526, 8526, 8544, 8584, 11264, 11310, 11312, 11358,
11360, 11492, 11499, 11502, 11520, 11557, 11568, 11621,
11631, 11631, 11648, 11670, 11680, 11686, 11688, 11694,
11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726,
11728, 11734, 11736, 11742, 11823, 11823, 12293, 12295,
12321, 12329, 12337, 12341, 12344, 12348, 12353, 12438,
12445, 12447, 12449, 12538, 12540, 12543, 12549, 12589,
12593, 12686, 12704, 12730, 12784, 12799, 13312, 13312,
19893, 19893, 19968, 19968, 40907, 40907, 40960, 42124,
42192, 42237, 42240, 42508, 42512, 42527, 42538, 42539,
42560, 42606, 42623, 42647, 42656, 42735, 42775, 42783,
42786, 42888, 42891, 42894, 42896, 42897, 42912, 42921,
43002, 43009, 43011, 43013, 43015, 43018, 43020, 43042,
43072, 43123, 43138, 43187, 43250, 43255, 43259, 43259,
43274, 43301, 43312, 43334, 43360, 43388, 43396, 43442,
43471, 43471, 43520, 43560, 43584, 43586, 43588, 43595,
43616, 43638, 43642, 43642, 43648, 43695, 43697, 43697,
43701, 43702, 43705, 43709, 43712, 43712, 43714, 43714,
43739, 43741, 43777, 43782, 43785, 43790, 43793, 43798,
43808, 43814, 43816, 43822, 43968, 44002, 44032, 44032,
55203, 55203, 55216, 55238, 55243, 55291, 63744, 64045,
64048, 64109, 64112, 64217, 64256, 64262, 64275, 64279,
64285, 64285, 64287, 64296, 64298, 64310, 64312, 64316,
64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433,
64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019,
65136, 65140, 65142, 65276, 65313, 65338, 65345, 65370,
65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495,
65498, 65500, 65536, 65547, 65549, 65574, 65576, 65594,
65596, 65597, 65599, 65613, 65616, 65629, 65664, 65786,
65856, 65908, 66176, 66204, 66208, 66256, 66304, 66334,
66352, 66378, 66432, 66461, 66464, 66499, 66504, 66511,
66513, 66517, 66560, 66717, 67584, 67589, 67592, 67592,
67594, 67637, 67639, 67640, 67644, 67644, 67647, 67669,
67840, 67861, 67872, 67897, 68096, 68096, 68112, 68115,
68117, 68119, 68121, 68147, 68192, 68220, 68352, 68405,
68416, 68437, 68448, 68466, 68608, 68680, 69635, 69687,
69763, 69807, 73728, 74606, 74752, 74850, 77824, 78894,
92160, 92728, 110592, 110593, 119808, 119892, 119894, 119964,
119966, 119967, 119970, 119970, 119973, 119974, 119977, 119980,
119982, 119993, 119995, 119995, 119997, 120003, 120005, 120069,
120071, 120074, 120077, 120084, 120086, 120092, 120094, 120121,
120123, 120126, 120128, 120132, 120134, 120134, 120138, 120144,
120146, 120485, 120488, 120512, 120514, 120538, 120540, 120570,
120572, 120596, 120598, 120628, 120630, 120654, 120656, 120686,
120688, 120712, 120714, 120744, 120746, 120770, 120772, 120779,
131072, 131072, 173782, 173782, 173824, 173824, 177972, 177972,
177984, 177984, 178205, 178205, 194560, 195101
];
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
}
// 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) === "#!") {
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 = "";
for (var i = 0; i < state.option.indent; i += 1) {
state.tab += " ";
}
}
Lexer.prototype = {
_lines: [],
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 ":":
case "~":
case "?":
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: /=. We need to make sure that this is an
// operator and not a regular expression.
if (ch1 === "/") {
if (ch2 === "=" && /\/=(?!(\S*\/[gim]?))/.test(this.input)) {
// /= is not a part of a regular expression, return it as a
// punctuator.
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 += "*/";
}
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.substr(0, str.length) === str) {
isSpecial = true;
label = label + str;
body = body.substr(str.length);
}
if (!isSpecial && body.charAt(0) === " " && 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.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
});
return commentToken("/*", body, {
isMultiline: true,
isMalformed: true
});
}
} else {
body += this.peek();
this.skip();
}
}
this.skip(2);
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;
// Detects any character in the Unicode categories "Uppercase
// letter (Lu)", "Lowercase letter (Ll)", "Titlecase letter
// (Lt)", "Modifier letter (Lm)", "Other letter (Lo)", or
// "Letter number (Nl)".
//
// Both approach and unicodeLetterTable were borrowed from
// Google's Traceur.
function isUnicodeLetter(code) {
for (var i = 0; i < unicodeLetterTable.length;) {
if (code < unicodeLetterTable[i++]) {
return false;
}
if (code <= unicodeLetterTable[i++]) {
return true;
}
}
return false;
}
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 (isUnicodeLetter(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 (identifierStartTable[code]) {
index += 1;
return chr;
}
return null;
}
if (isUnicodeLetter(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 (identifierPartTable[code]) {
index += 1;
return chr;
}
return null;
}
if (isUnicodeLetter(code)) {
index += 1;
return chr;
}
return null;
}.bind(this);
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: id
};
},
/*
* 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;
function isDecimalDigit(str) {
return (/^[0-9]$/).test(str);
}
function isOctalDigit(str) {
return (/^[0-7]$/).test(str);
}
function isHexDigit(str) {
return (/^[0-9a-fA-F]$/).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") {
index += 1;
value += char;
while (index < length) {
char = this.peek(index);
if (!isHexDigit(char)) {
break;
}
value += char;
index += 1;
}
if (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: 16,
isMalformed: false
};
}
// Base-8 numbers.
if (isOctalDigit(char)) {
index += 1;
value += char;
bad = false;
while (index < length) {
char = this.peek(index);
// Numbers like '019' (note the 9) are not valid octals
// but we still parse them and mark as malformed.
if (isDecimalDigit(char)) {
bad = true;
} else if (!isOctalDigit(char)) {
break;
}
value += char;
index += 1;
}
if (index < length) {
char = this.peek(index);
if (isIdentifierStart(char)) {
return null;
}
}
return {
type: Token.NumericLiteral,
value: value,
base: 8,
isMalformed: false
};
}
// Decimal numbers that start with '0' such as '09' are illegal
// but we still parse them and return as malformed.
if (isDecimalDigit(char)) {
index += 1;
value += char;
}
}
while (index < length) {
char = this.peek(index);
if (!isDecimalDigit(char)) {
break;
}
value += char;
index += 1;
}
}
// 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: 10,
isMalformed: !isFinite(value)
};
},
/*
* 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,
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: [ "" ]
});
}
// Special treatment for some escaped characters.
if (char === "\\") {
this.skip();
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":
char = String.fromCharCode(parseInt(this.input.substr(1, 4), 16));
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 "\\":
case "\"":
case "/":
break;
case "":
allowNewLine = true;
char = "";
break;
case "!":
if (value.slice(value.length - 2) === "<") {
break;
}
/*falls through */
default:
// Weird escaping.
this.trigger("warning", {
code: "W044",
line: this.line,
character: this.char
});
}
}
value += char;
this.skip(jump);
}
this.skip();
return {
type: Token.StringLiteral,
value: value,
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 occurence of mixed tabs and spaces. If smarttabs option
* is on, ignore tabs followed by spaces.
*
* Tabs followed by one space followed by a block comment are allowed.
*/
scanMixedSpacesAndTabs: function () {
var at, match;
if (state.option.smarttabs) {
// Negative look-behind for "//"
match = this.input.match(/(\/\/|^\s?\*)? \t/);
at = match && !match[1] ? 0 : -1;
} else {
at = this.input.search(/ \t|\t [^\*]/);
}
return at;
},
/*
* 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();
}
if (this.peek() === "") { // EOL
if (!/^\s*$/.test(this.getLines()[this.line - 1]) && state.option.trailing) {
this.trigger("warning", { code: "W102", line: this.line, character: start });
}
}
}
// Methods that work with multi-line structures and move the
// character pointer.
var match = this.scanComments() ||
this.scanStringLiteral(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.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 mixed spaces and tabs
* and 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;
char = this.scanMixedSpacesAndTabs();
if (char >= 0) {
this.trigger("warning", { code: "W099", 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) {
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 retuns 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) {
/*jshint validthis:true */
var obj;
if (type !== "(endline)" && type !== "(end)") {
this.prereg = false;
}
if (type === "(punctuator)") {
switch (value) {
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 (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,
value: token.value,
quote: token.quote
}, checks, function () { return true; });
return create("(string)", token.value);
case Token.Identifier:
this.trigger("Identifier", {
line: this.line,
char: this.char,
from: this.form,
name: token.value,
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 === ".");
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;
});
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 {
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;
})()
},{"events":2,"./reg.js":3,"./state.js":6,"underscore":12}],8:[function(require,module,exports){
var events = require('events');
exports.isArray = isArray;
exports.isDate = function(obj){return Object.prototype.toString.call(obj) === '[object Date]'};
exports.isRegExp = function(obj){return Object.prototype.toString.call(obj) === '[object RegExp]'};
exports.print = function () {};
exports.puts = function () {};
exports.debug = function() {};
exports.inspect = function(obj, showHidden, depth, colors) {
var seen = [];
var stylize = function(str, styleType) {
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
var styles =
{ '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] };
var style =
{ 'special': 'cyan',
'number': 'blue',
'boolean': 'yellow',
'undefined': 'grey',
'null': 'bold',
'string': 'green',
'date': 'magenta',
// "name": intentionally not styling
'regexp': 'red' }[styleType];
if (style) {
return '\033[' + styles[style][0] + 'm' + str +
'\033[' + styles[style][1] + 'm';
} else {
return str;
}
};
if (! colors) {
stylize = function(str, styleType) { return str; };
}
function format(value, recurseTimes) {
// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it
if (value && typeof value.inspect === 'function' &&
// Filter out the util module, it's inspect function is special
value !== exports &&
// Also filter out any prototype objects using the circular check.
!(value.constructor && value.constructor.prototype === value)) {
return value.inspect(recurseTimes);
}
// Primitive types cannot have properties
switch (typeof value) {
case 'undefined':
return stylize('undefined', 'undefined');
case 'string':
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
.replace(/'/g, "\\'")
.replace(/\\"/g, '"') + '\'';
return stylize(simple, 'string');
case 'number':
return stylize('' + value, 'number');
case 'boolean':
return stylize('' + value, 'boolean');
}
// For some reason typeof null is "object", so special case here.
if (value === null) {
return stylize('null', 'null');
}
// Look up the keys of the object.
var visible_keys = Object_keys(value);
var keys = showHidden ? Object_getOwnPropertyNames(value) : visible_keys;
// Functions without properties can be shortcutted.
if (typeof value === 'function' && keys.length === 0) {
if (isRegExp(value)) {
return stylize('' + value, 'regexp');
} else {
var name = value.name ? ': ' + value.name : '';
return stylize('[Function' + name + ']', 'special');
}
}
// Dates without properties can be shortcutted
if (isDate(value) && keys.length === 0) {
return stylize(value.toUTCString(), 'date');
}
var base, type, braces;
// Determine the object type
if (isArray(value)) {
type = 'Array';
braces = ['[', ']'];
} else {
type = 'Object';
braces = ['{', '}'];
}
// Make functions say that they are functions
if (typeof value === 'function') {
var n = value.name ? ': ' + value.name : '';
base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
} else {
base = '';
}
// Make dates with properties first say the date
if (isDate(value)) {
base = ' ' + value.toUTCString();
}
if (keys.length === 0) {
return braces[0] + base + braces[1];
}
if (recurseTimes < 0) {
if (isRegExp(value)) {
return stylize('' + value, 'regexp');
} else {
return stylize('[Object]', 'special');
}
}
seen.push(value);
var output = keys.map(function(key) {
var name, str;
if (value.__lookupGetter__) {
if (value.__lookupGetter__(key)) {
if (value.__lookupSetter__(key)) {
str = stylize('[Getter/Setter]', 'special');
} else {
str = stylize('[Getter]', 'special');
}
} else {
if (value.__lookupSetter__(key)) {
str = stylize('[Setter]', 'special');
}
}
}
if (visible_keys.indexOf(key) < 0) {
name = '[' + key + ']';
}
if (!str) {
if (seen.indexOf(value[key]) < 0) {
if (recurseTimes === null) {
str = format(value[key]);
} else {
str = format(value[key], recurseTimes - 1);
}
if (str.indexOf('\n') > -1) {
if (isArray(value)) {
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 = stylize('[Circular]', 'special');
}
}
if (typeof name === 'undefined') {
if (type === 'Array' && key.match(/^\d+$/)) {
return str;
}
name = JSON.stringify('' + key);
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
name = name.substr(1, name.length - 2);
name = stylize(name, 'name');
} else {
name = name.replace(/'/g, "\\'")
.replace(/\\"/g, '"')
.replace(/(^"|"$)/g, "'");
name = stylize(name, 'string');
}
}
return name + ': ' + str;
});
seen.pop();
var numLinesEst = 0;
var length = output.reduce(function(prev, cur) {
numLinesEst++;
if (cur.indexOf('\n') >= 0) numLinesEst++;
return prev + cur.length + 1;
}, 0);
if (length > 50) {
output = braces[0] +
(base === '' ? '' : base + '\n ') +
' ' +
output.join(',\n ') +
' ' +
braces[1];
} else {
output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}
return output;
}
return format(obj, (typeof depth === 'undefined' ? 2 : depth));
};
function isArray(ar) {
return ar instanceof Array ||
Array.isArray(ar) ||
(ar && ar !== Object.prototype && isArray(ar.__proto__));
}
function isRegExp(re) {
return re instanceof RegExp ||
(typeof re === 'object' && Object.prototype.toString.call(re) === '[object RegExp]');
}
function isDate(d) {
if (d instanceof Date) return true;
if (typeof d !== 'object') return false;
var properties = Date.prototype && Object_getOwnPropertyNames(Date.prototype);
var proto = d.__proto__ && Object_getOwnPropertyNames(d.__proto__);
return JSON.stringify(proto) === JSON.stringify(properties);
}
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(' ');
}
exports.log = function (msg) {};
exports.pump = null;
var Object_keys = Object.keys || function (obj) {
var res = [];
for (var key in obj) res.push(key);
return res;
};
var Object_getOwnPropertyNames = Object.getOwnPropertyNames || function (obj) {
var res = [];
for (var key in obj) {
if (Object.hasOwnProperty.call(obj, key)) res.push(key);
}
return res;
};
var Object_create = Object.create || function (prototype, properties) {
// from es5-shim
var object;
if (prototype === null) {
object = { '__proto__' : null };
}
else {
if (typeof prototype !== 'object') {
throw new TypeError(
'typeof prototype[' + (typeof prototype) + '] != \'object\''
);
}
var Type = function () {};
Type.prototype = prototype;
object = new Type();
object.__proto__ = prototype;
}
if (typeof properties !== 'undefined' && Object.defineProperties) {
Object.defineProperties(object, properties);
}
return object;
};
exports.inherits = function(ctor, superCtor) {
ctor.super_ = superCtor;
ctor.prototype = Object_create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
});
};
var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
if (typeof f !== 'string') {
var objects = [];
for (var i = 0; i < arguments.length; i++) {
objects.push(exports.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': return JSON.stringify(args[i++]);
default:
return x;
}
});
for(var x = args[i]; i < len; x = args[++i]){
if (x === null || typeof x !== 'object') {
str += ' ' + x;
} else {
str += ' ' + exports.inspect(x);
}
}
return str;
};
},{"events":2}],9:[function(require,module,exports){
(function(){// UTILITY
var util = require('util');
var Buffer = require("buffer").Buffer;
var pSlice = Array.prototype.slice;
function objectKeys(object) {
if (Object.keys) return Object.keys(object);
var result = [];
for (var name in object) {
if (Object.prototype.hasOwnProperty.call(object, name)) {
result.push(name);
}
}
return result;
}
// 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.message = options.message;
this.actual = options.actual;
this.expected = options.expected;
this.operator = options.operator;
var stackStartFunction = options.stackStartFunction || fail;
if (Error.captureStackTrace) {
Error.captureStackTrace(this, stackStartFunction);
}
};
util.inherits(assert.AssertionError, Error);
function replacer(key, value) {
if (value === undefined) {
return '' + value;
}
if (typeof value === 'number' && (isNaN(value) || !isFinite(value))) {
return value.toString();
}
if (typeof value === 'function' || value instanceof RegExp) {
return value.toString();
}
return value;
}
function truncate(s, n) {
if (typeof s == 'string') {
return s.length < n ? s : s.slice(0, n);
} else {
return s;
}
}
assert.AssertionError.prototype.toString = function() {
if (this.message) {
return [this.name + ':', this.message].join(' ');
} else {
return [
this.name + ':',
truncate(JSON.stringify(this.actual, replacer), 128),
this.operator,
truncate(JSON.stringify(this.expected, replacer), 128)
].join(' ');
}
};
// assert.AssertionError instanceof Error
assert.AssertionError.__proto__ = Error.prototype;
// 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 (Buffer.isBuffer(actual) && Buffer.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 (actual instanceof Date && expected instanceof Date) {
return actual.getTime() === expected.getTime();
// 7.3. Other pairs that do not both pass typeof value == 'object',
// equivalence is determined by ==.
} else if (typeof actual != 'object' && typeof expected != 'object') {
return actual == expected;
// 7.4. 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 isUndefinedOrNull(value) {
return value === null || value === undefined;
}
function isArguments(object) {
return Object.prototype.toString.call(object) == '[object Arguments]';
}
function objEquiv(a, b) {
if (isUndefinedOrNull(a) || isUndefinedOrNull(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 (expected instanceof 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 (typeof expected === 'string') {
message = expected;
expected = null;
}
try {
block();
} catch (e) {
actual = e;
}
message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
(message ? ' ' + message : '.');
if (shouldThrow && !actual) {
fail('Missing expected exception' + message);
}
if (!shouldThrow && expectedException(actual, expected)) {
fail('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*/error, /*optional*/message) {
_throws.apply(this, [false].concat(pSlice.call(arguments)));
};
assert.ifError = function(err) { if (err) {throw err;}};
})()
},{"util":8,"buffer":13}],12:[function(require,module,exports){
(function(){// Underscore.js 1.4.4
// http://underscorejs.org
// (c) 2009-2013 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore may be freely distributed under the MIT license.
(function() {
// Baseline setup
// --------------
// Establish the root object, `window` in the browser, or `global` 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 = '1.4.4';
// 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;
if (nativeForEach && obj.forEach === nativeForEach) {
obj.forEach(iterator, context);
} else if (obj.length === +obj.length) {
for (var i = 0, l = obj.length; i < l; i++) {
if (iterator.call(context, obj[i], i, obj) === breaker) return;
}
} else {
for (var key in obj) {
if (_.has(obj, key)) {
if (iterator.call(context, obj[key], key, obj) === breaker) return;
}
}
}
};
// 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[results.length] = 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, iterator, context) {
var result;
any(obj, function(value, index, list) {
if (iterator.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, iterator, context) {
var results = [];
if (obj == null) return results;
if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
each(obj, function(value, index, list) {
if (iterator.call(context, value, index, list)) results[results.length] = value;
});
return results;
};
// Return all the elements for which a truth test fails.
_.reject = function(obj, iterator, context) {
return _.filter(obj, function(value, index, list) {
return !iterator.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, iterator, context) {
iterator || (iterator = _.identity);
var result = true;
if (obj == null) return result;
if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
each(obj, function(value, index, list) {
if (!(result = result && iterator.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, iterator, context) {
iterator || (iterator = _.identity);
var result = false;
if (obj == null) return result;
if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
each(obj, function(value, index, list) {
if (result || (result = iterator.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, function(value){ return value[key]; });
};
// Convenience version of a common use case of `filter`: selecting only objects
// containing specific `key:value` pairs.
_.where = function(obj, attrs, first) {
if (_.isEmpty(attrs)) return first ? null : [];
return _[first ? 'find' : 'filter'](obj, function(value) {
for (var key in attrs) {
if (attrs[key] !== value[key]) return false;
}
return true;
});
};
// Convenience version of a common use case of `find`: getting the first object
// containing specific `key:value` pairs.
_.findWhere = function(obj, attrs) {
return _.where(obj, attrs, true);
};
// Return the maximum element or (element-based computation).
// Can't optimize arrays of integers longer than 65,535 elements.
// See: 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);
}
if (!iterator && _.isEmpty(obj)) return -Infinity;
var result = {computed : -Infinity, value: -Infinity};
each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value;
computed >= result.computed && (result = {value : value, computed : computed});
});
return result.value;
};
// 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);
}
if (!iterator && _.isEmpty(obj)) return Infinity;
var result = {computed : Infinity, value: Infinity};
each(obj, function(value, index, list) {
var computed = iterator ? iterator.call(context, value, index, list) : value;
computed < result.computed && (result = {value : value, computed : computed});
});
return result.value;
};
// Shuffle an array.
_.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;
};
// An internal function to generate lookup iterators.
var lookupIterator = function(value) {
return _.isFunction(value) ? value : function(obj){ return obj[value]; };
};
// Sort the object's values by a criterion produced by an iterator.
_.sortBy = function(obj, value, context) {
var iterator = lookupIterator(value);
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 ? -1 : 1;
}), 'value');
};
// An internal function used for aggregate "group by" operations.
var group = function(obj, value, context, behavior) {
var result = {};
var iterator = lookupIterator(value || _.identity);
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 = function(obj, value, context) {
return group(obj, value, context, function(result, key, value) {
(_.has(result, key) ? result[key] : (result[key] = [])).push(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 = function(obj, value, context) {
return group(obj, value, context, function(result, key) {
if (!_.has(result, key)) result[key] = 0;
result[key]++;
});
};
// 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 = iterator == null ? _.identity : 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 convert anything iterable into a real, live array.
_.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;
return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
};
// 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 slice.call(array, Math.max(array.length - n, 0));
} else {
return array[array.length - 1];
}
};
// 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) {
each(input, function(value) {
if (_.isArray(value)) {
shallow ? push.apply(output, value) : flatten(value, shallow, output);
} else {
output.push(value);
}
});
return output;
};
// Return a completely flattened version of an array.
_.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));
};
// 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(concat.apply(ArrayProto, arguments));
};
// 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 _.indexOf(other, item) >= 0;
});
});
};
// 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 args = slice.call(arguments);
var length = _.max(_.pluck(args, 'length'));
var results = new Array(length);
for (var i = 0; i < length; i++) {
results[i] = _.pluck(args, "" + 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, l = list.length; i < l; 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, l = array.length;
if (isSorted) {
if (typeof isSorted == 'number') {
i = (isSorted < 0 ? Math.max(0, l + 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 < l; 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 len = Math.max(Math.ceil((stop - start) / step), 0);
var idx = 0;
var range = new Array(len);
while(idx < len) {
range[idx++] = start;
start += step;
}
return range;
};
// Function (ahem) Functions
// ------------------
// 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) {
if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
var args = slice.call(arguments, 2);
return function() {
return func.apply(context, args.concat(slice.call(arguments)));
};
};
// Partially apply a function by creating a version that has had some of its
// arguments pre-filled, without changing its dynamic `this` context.
_.partial = function(func) {
var args = slice.call(arguments, 1);
return function() {
return func.apply(this, args.concat(slice.call(arguments)));
};
};
// Bind all of an object's methods to that object. 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) funcs = _.functions(obj);
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.
_.throttle = function(func, wait) {
var context, args, timeout, result;
var previous = 0;
var later = function() {
previous = new Date;
timeout = null;
result = func.apply(context, args);
};
return function() {
var now = new Date;
var remaining = wait - (now - previous);
context = this;
args = arguments;
if (remaining <= 0) {
clearTimeout(timeout);
timeout = null;
previous = now;
result = func.apply(context, args);
} else if (!timeout) {
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, result;
return function() {
var context = this, args = arguments;
var later = function() {
timeout = null;
if (!immediate) result = func.apply(context, args);
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) result = func.apply(context, args);
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 function() {
var args = [func];
push.apply(args, arguments);
return wrapper.apply(this, args);
};
};
// 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) {
if (times <= 0) return 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 = nativeKeys || function(obj) {
if (obj !== Object(obj)) throw new TypeError('Invalid object');
var keys = [];
for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key;
return keys;
};
// Retrieve the values of an object's properties.
_.values = function(obj) {
var values = [];
for (var key in obj) if (_.has(obj, key)) values.push(obj[key]);
return values;
};
// Convert an object into a list of `[key, value]` pairs.
_.pairs = function(obj) {
var pairs = [];
for (var key in obj) if (_.has(obj, key)) pairs.push([key, obj[key]]);
return pairs;
};
// Invert the keys and values of an object. The values must be serializable.
_.invert = function(obj) {
var result = {};
for (var key in obj) if (_.has(obj, key)) result[obj[key]] = key;
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] == null) 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;
}
// 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 {
// 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))) {
return false;
}
// 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;
};
// Run a function **n** times.
_.times = function(n, iterator, context) {
var accum = Array(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));
};
// List of HTML entities for escaping.
var entityMap = {
escape: {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": ''',
'/': '/'
}
};
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;
// otherwise, return it.
_.result = function(object, property) {
if (object == null) return null;
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;
}
});
}).call(this);
})()
},{}],14:[function(require,module,exports){
exports.readIEEE754 = function(buffer, offset, isBE, mLen, nBytes) {
var e, m,
eLen = nBytes * 8 - mLen - 1,
eMax = (1 << eLen) - 1,
eBias = eMax >> 1,
nBits = -7,
i = isBE ? 0 : (nBytes - 1),
d = isBE ? 1 : -1,
s = buffer[offset + i];
i += d;
e = s & ((1 << (-nBits)) - 1);
s >>= (-nBits);
nBits += eLen;
for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8);
m = e & ((1 << (-nBits)) - 1);
e >>= (-nBits);
nBits += mLen;
for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8);
if (e === 0) {
e = 1 - eBias;
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity);
} else {
m = m + Math.pow(2, mLen);
e = e - eBias;
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
};
exports.writeIEEE754 = function(buffer, value, offset, isBE, mLen, nBytes) {
var e, m, c,
eLen = nBytes * 8 - mLen - 1,
eMax = (1 << eLen) - 1,
eBias = eMax >> 1,
rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
i = isBE ? (nBytes - 1) : 0,
d = isBE ? -1 : 1,
s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
value = Math.abs(value);
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0;
e = eMax;
} else {
e = Math.floor(Math.log(value) / Math.LN2);
if (value * (c = Math.pow(2, -e)) < 1) {
e--;
c *= 2;
}
if (e + eBias >= 1) {
value += rt / c;
} else {
value += rt * Math.pow(2, 1 - eBias);
}
if (value * c >= 2) {
e++;
c /= 2;
}
if (e + eBias >= eMax) {
m = 0;
e = eMax;
} else if (e + eBias >= 1) {
m = (value * c - 1) * Math.pow(2, mLen);
e = e + eBias;
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
e = 0;
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8);
e = (e << mLen) | m;
eLen += mLen;
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8);
buffer[offset + i - d] |= s * 128;
};
},{}],13:[function(require,module,exports){
(function(){function SlowBuffer (size) {
this.length = size;
};
var assert = require('assert');
exports.INSPECT_MAX_BYTES = 50;
function toHex(n) {
if (n < 16) return '0' + n.toString(16);
return n.toString(16);
}
function utf8ToBytes(str) {
var byteArray = [];
for (var i = 0; i < str.length; i++)
if (str.charCodeAt(i) <= 0x7F)
byteArray.push(str.charCodeAt(i));
else {
var h = encodeURIComponent(str.charAt(i)).substr(1).split('%');
for (var j = 0; j < h.length; j++)
byteArray.push(parseInt(h[j], 16));
}
return byteArray;
}
function asciiToBytes(str) {
var byteArray = []
for (var i = 0; i < str.length; i++ )
// Node's code seems to be doing this and not & 0x7F..
byteArray.push( str.charCodeAt(i) & 0xFF );
return byteArray;
}
function base64ToBytes(str) {
return require("base64-js").toByteArray(str);
}
SlowBuffer.byteLength = function (str, encoding) {
switch (encoding || "utf8") {
case 'hex':
return str.length / 2;
case 'utf8':
case 'utf-8':
return utf8ToBytes(str).length;
case 'ascii':
case 'binary':
return str.length;
case 'base64':
return base64ToBytes(str).length;
default:
throw new Error('Unknown encoding');
}
};
function blitBuffer(src, dst, offset, length) {
var pos, i = 0;
while (i < length) {
if ((i+offset >= dst.length) || (i >= src.length))
break;
dst[i + offset] = src[i];
i++;
}
return i;
}
SlowBuffer.prototype.utf8Write = function (string, offset, length) {
var bytes, pos;
return SlowBuffer._charsWritten = blitBuffer(utf8ToBytes(string), this, offset, length);
};
SlowBuffer.prototype.asciiWrite = function (string, offset, length) {
var bytes, pos;
return SlowBuffer._charsWritten = blitBuffer(asciiToBytes(string), this, offset, length);
};
SlowBuffer.prototype.binaryWrite = SlowBuffer.prototype.asciiWrite;
SlowBuffer.prototype.base64Write = function (string, offset, length) {
var bytes, pos;
return SlowBuffer._charsWritten = blitBuffer(base64ToBytes(string), this, offset, length);
};
SlowBuffer.prototype.base64Slice = function (start, end) {
var bytes = Array.prototype.slice.apply(this, arguments)
return require("base64-js").fromByteArray(bytes);
}
function decodeUtf8Char(str) {
try {
return decodeURIComponent(str);
} catch (err) {
return String.fromCharCode(0xFFFD); // UTF 8 invalid char
}
}
SlowBuffer.prototype.utf8Slice = function () {
var bytes = Array.prototype.slice.apply(this, arguments);
var res = "";
var tmp = "";
var i = 0;
while (i < bytes.length) {
if (bytes[i] <= 0x7F) {
res += decodeUtf8Char(tmp) + String.fromCharCode(bytes[i]);
tmp = "";
} else
tmp += "%" + bytes[i].toString(16);
i++;
}
return res + decodeUtf8Char(tmp);
}
SlowBuffer.prototype.asciiSlice = function () {
var bytes = Array.prototype.slice.apply(this, arguments);
var ret = "";
for (var i = 0; i < bytes.length; i++)
ret += String.fromCharCode(bytes[i]);
return ret;
}
SlowBuffer.prototype.binarySlice = SlowBuffer.prototype.asciiSlice;
SlowBuffer.prototype.inspect = function() {
var out = [],
len = this.length;
for (var i = 0; i < len; i++) {
out[i] = toHex(this[i]);
if (i == exports.INSPECT_MAX_BYTES) {
out[i + 1] = '...';
break;
}
}
return '';
};
SlowBuffer.prototype.hexSlice = function(start, end) {
var len = this.length;
if (!start || start < 0) start = 0;
if (!end || end < 0 || end > len) end = len;
var out = '';
for (var i = start; i < end; i++) {
out += toHex(this[i]);
}
return out;
};
SlowBuffer.prototype.toString = function(encoding, start, end) {
encoding = String(encoding || 'utf8').toLowerCase();
start = +start || 0;
if (typeof end == 'undefined') end = this.length;
// Fastpath empty strings
if (+end == start) {
return '';
}
switch (encoding) {
case 'hex':
return this.hexSlice(start, end);
case 'utf8':
case 'utf-8':
return this.utf8Slice(start, end);
case 'ascii':
return this.asciiSlice(start, end);
case 'binary':
return this.binarySlice(start, end);
case 'base64':
return this.base64Slice(start, end);
case 'ucs2':
case 'ucs-2':
return this.ucs2Slice(start, end);
default:
throw new Error('Unknown encoding');
}
};
SlowBuffer.prototype.hexWrite = function(string, offset, length) {
offset = +offset || 0;
var remaining = this.length - offset;
if (!length) {
length = remaining;
} else {
length = +length;
if (length > remaining) {
length = remaining;
}
}
// must be an even number of digits
var strLen = string.length;
if (strLen % 2) {
throw new Error('Invalid hex string');
}
if (length > strLen / 2) {
length = strLen / 2;
}
for (var i = 0; i < length; i++) {
var byte = parseInt(string.substr(i * 2, 2), 16);
if (isNaN(byte)) throw new Error('Invalid hex string');
this[offset + i] = byte;
}
SlowBuffer._charsWritten = i * 2;
return i;
};
SlowBuffer.prototype.write = function(string, offset, length, encoding) {
// Support both (string, offset, length, encoding)
// and the legacy (string, encoding, offset, length)
if (isFinite(offset)) {
if (!isFinite(length)) {
encoding = length;
length = undefined;
}
} else { // legacy
var swap = encoding;
encoding = offset;
offset = length;
length = swap;
}
offset = +offset || 0;
var remaining = this.length - offset;
if (!length) {
length = remaining;
} else {
length = +length;
if (length > remaining) {
length = remaining;
}
}
encoding = String(encoding || 'utf8').toLowerCase();
switch (encoding) {
case 'hex':
return this.hexWrite(string, offset, length);
case 'utf8':
case 'utf-8':
return this.utf8Write(string, offset, length);
case 'ascii':
return this.asciiWrite(string, offset, length);
case 'binary':
return this.binaryWrite(string, offset, length);
case 'base64':
return this.base64Write(string, offset, length);
case 'ucs2':
case 'ucs-2':
return this.ucs2Write(string, offset, length);
default:
throw new Error('Unknown encoding');
}
};
// slice(start, end)
SlowBuffer.prototype.slice = function(start, end) {
if (end === undefined) end = this.length;
if (end > this.length) {
throw new Error('oob');
}
if (start > end) {
throw new Error('oob');
}
return new Buffer(this, end - start, +start);
};
SlowBuffer.prototype.copy = function(target, targetstart, sourcestart, sourceend) {
var temp = [];
for (var i=sourcestart; i this.length) {
throw new Error('oob');
}
if (start > end) {
throw new Error('oob');
}
for (var i = start; i < end; i++) {
this[i] = value;
}
}
function coerce(length) {
// Coerce length to a number (possibly NaN), round up
// in case it's fractional (e.g. 123.456) then do a
// double negate to coerce a NaN to 0. Easy, right?
length = ~~Math.ceil(+length);
return length < 0 ? 0 : length;
}
// Buffer
function Buffer(subject, encoding, offset) {
if (!(this instanceof Buffer)) {
return new Buffer(subject, encoding, offset);
}
var type;
// Are we slicing?
if (typeof offset === 'number') {
this.length = coerce(encoding);
this.parent = subject;
this.offset = offset;
} else {
// Find the length
switch (type = typeof subject) {
case 'number':
this.length = coerce(subject);
break;
case 'string':
this.length = Buffer.byteLength(subject, encoding);
break;
case 'object': // Assume object is an array
this.length = coerce(subject.length);
break;
default:
throw new Error('First argument needs to be a number, ' +
'array or string.');
}
if (this.length > Buffer.poolSize) {
// Big buffer, just alloc one.
this.parent = new SlowBuffer(this.length);
this.offset = 0;
} else {
// Small buffer.
if (!pool || pool.length - pool.used < this.length) allocPool();
this.parent = pool;
this.offset = pool.used;
pool.used += this.length;
}
// Treat array-ish objects as a byte array.
if (isArrayIsh(subject)) {
for (var i = 0; i < this.length; i++) {
if (subject instanceof Buffer) {
this.parent[i + this.offset] = subject.readUInt8(i);
}
else {
this.parent[i + this.offset] = subject[i];
}
}
} else if (type == 'string') {
// We are a string
this.length = this.write(subject, 0, encoding);
}
}
}
function isArrayIsh(subject) {
return Array.isArray(subject) || Buffer.isBuffer(subject) ||
subject && typeof subject === 'object' &&
typeof subject.length === 'number';
}
exports.SlowBuffer = SlowBuffer;
exports.Buffer = Buffer;
Buffer.poolSize = 8 * 1024;
var pool;
function allocPool() {
pool = new SlowBuffer(Buffer.poolSize);
pool.used = 0;
}
// Static methods
Buffer.isBuffer = function isBuffer(b) {
return b instanceof Buffer || b instanceof SlowBuffer;
};
Buffer.concat = function (list, totalLength) {
if (!Array.isArray(list)) {
throw new Error("Usage: Buffer.concat(list, [totalLength])\n \
list should be an Array.");
}
if (list.length === 0) {
return new Buffer(0);
} else if (list.length === 1) {
return list[0];
}
if (typeof totalLength !== 'number') {
totalLength = 0;
for (var i = 0; i < list.length; i++) {
var buf = list[i];
totalLength += buf.length;
}
}
var buffer = new Buffer(totalLength);
var pos = 0;
for (var i = 0; i < list.length; i++) {
var buf = list[i];
buf.copy(buffer, pos);
pos += buf.length;
}
return buffer;
};
// Inspect
Buffer.prototype.inspect = function inspect() {
var out = [],
len = this.length;
for (var i = 0; i < len; i++) {
out[i] = toHex(this.parent[i + this.offset]);
if (i == exports.INSPECT_MAX_BYTES) {
out[i + 1] = '...';
break;
}
}
return '';
};
Buffer.prototype.get = function get(i) {
if (i < 0 || i >= this.length) throw new Error('oob');
return this.parent[this.offset + i];
};
Buffer.prototype.set = function set(i, v) {
if (i < 0 || i >= this.length) throw new Error('oob');
return this.parent[this.offset + i] = v;
};
// write(string, offset = 0, length = buffer.length-offset, encoding = 'utf8')
Buffer.prototype.write = function(string, offset, length, encoding) {
// Support both (string, offset, length, encoding)
// and the legacy (string, encoding, offset, length)
if (isFinite(offset)) {
if (!isFinite(length)) {
encoding = length;
length = undefined;
}
} else { // legacy
var swap = encoding;
encoding = offset;
offset = length;
length = swap;
}
offset = +offset || 0;
var remaining = this.length - offset;
if (!length) {
length = remaining;
} else {
length = +length;
if (length > remaining) {
length = remaining;
}
}
encoding = String(encoding || 'utf8').toLowerCase();
var ret;
switch (encoding) {
case 'hex':
ret = this.parent.hexWrite(string, this.offset + offset, length);
break;
case 'utf8':
case 'utf-8':
ret = this.parent.utf8Write(string, this.offset + offset, length);
break;
case 'ascii':
ret = this.parent.asciiWrite(string, this.offset + offset, length);
break;
case 'binary':
ret = this.parent.binaryWrite(string, this.offset + offset, length);
break;
case 'base64':
// Warning: maxLength not taken into account in base64Write
ret = this.parent.base64Write(string, this.offset + offset, length);
break;
case 'ucs2':
case 'ucs-2':
ret = this.parent.ucs2Write(string, this.offset + offset, length);
break;
default:
throw new Error('Unknown encoding');
}
Buffer._charsWritten = SlowBuffer._charsWritten;
return ret;
};
// toString(encoding, start=0, end=buffer.length)
Buffer.prototype.toString = function(encoding, start, end) {
encoding = String(encoding || 'utf8').toLowerCase();
if (typeof start == 'undefined' || start < 0) {
start = 0;
} else if (start > this.length) {
start = this.length;
}
if (typeof end == 'undefined' || end > this.length) {
end = this.length;
} else if (end < 0) {
end = 0;
}
start = start + this.offset;
end = end + this.offset;
switch (encoding) {
case 'hex':
return this.parent.hexSlice(start, end);
case 'utf8':
case 'utf-8':
return this.parent.utf8Slice(start, end);
case 'ascii':
return this.parent.asciiSlice(start, end);
case 'binary':
return this.parent.binarySlice(start, end);
case 'base64':
return this.parent.base64Slice(start, end);
case 'ucs2':
case 'ucs-2':
return this.parent.ucs2Slice(start, end);
default:
throw new Error('Unknown encoding');
}
};
// byteLength
Buffer.byteLength = SlowBuffer.byteLength;
// fill(value, start=0, end=buffer.length)
Buffer.prototype.fill = function fill(value, start, end) {
value || (value = 0);
start || (start = 0);
end || (end = this.length);
if (typeof value === 'string') {
value = value.charCodeAt(0);
}
if (!(typeof value === 'number') || isNaN(value)) {
throw new Error('value is not a number');
}
if (end < start) throw new Error('end < start');
// Fill 0 bytes; we're done
if (end === start) return 0;
if (this.length == 0) return 0;
if (start < 0 || start >= this.length) {
throw new Error('start out of bounds');
}
if (end < 0 || end > this.length) {
throw new Error('end out of bounds');
}
return this.parent.fill(value,
start + this.offset,
end + this.offset);
};
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function(target, target_start, start, end) {
var source = this;
start || (start = 0);
end || (end = this.length);
target_start || (target_start = 0);
if (end < start) throw new Error('sourceEnd < sourceStart');
// Copy 0 bytes; we're done
if (end === start) return 0;
if (target.length == 0 || source.length == 0) return 0;
if (target_start < 0 || target_start >= target.length) {
throw new Error('targetStart out of bounds');
}
if (start < 0 || start >= source.length) {
throw new Error('sourceStart out of bounds');
}
if (end < 0 || end > source.length) {
throw new Error('sourceEnd out of bounds');
}
// Are we oob?
if (end > this.length) {
end = this.length;
}
if (target.length - target_start < end - start) {
end = target.length - target_start + start;
}
return this.parent.copy(target.parent,
target_start + target.offset,
start + this.offset,
end + this.offset);
};
// slice(start, end)
Buffer.prototype.slice = function(start, end) {
if (end === undefined) end = this.length;
if (end > this.length) throw new Error('oob');
if (start > end) throw new Error('oob');
return new Buffer(this.parent, end - start, +start + this.offset);
};
// Legacy methods for backwards compatibility.
Buffer.prototype.utf8Slice = function(start, end) {
return this.toString('utf8', start, end);
};
Buffer.prototype.binarySlice = function(start, end) {
return this.toString('binary', start, end);
};
Buffer.prototype.asciiSlice = function(start, end) {
return this.toString('ascii', start, end);
};
Buffer.prototype.utf8Write = function(string, offset) {
return this.write(string, offset, 'utf8');
};
Buffer.prototype.binaryWrite = function(string, offset) {
return this.write(string, offset, 'binary');
};
Buffer.prototype.asciiWrite = function(string, offset) {
return this.write(string, offset, 'ascii');
};
Buffer.prototype.readUInt8 = function(offset, noAssert) {
var buffer = this;
if (!noAssert) {
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset < buffer.length,
'Trying to read beyond buffer length');
}
if (offset >= buffer.length) return;
return buffer.parent[buffer.offset + offset];
};
function readUInt16(buffer, offset, isBigEndian, noAssert) {
var val = 0;
if (!noAssert) {
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 1 < buffer.length,
'Trying to read beyond buffer length');
}
if (offset >= buffer.length) return 0;
if (isBigEndian) {
val = buffer.parent[buffer.offset + offset] << 8;
if (offset + 1 < buffer.length) {
val |= buffer.parent[buffer.offset + offset + 1];
}
} else {
val = buffer.parent[buffer.offset + offset];
if (offset + 1 < buffer.length) {
val |= buffer.parent[buffer.offset + offset + 1] << 8;
}
}
return val;
}
Buffer.prototype.readUInt16LE = function(offset, noAssert) {
return readUInt16(this, offset, false, noAssert);
};
Buffer.prototype.readUInt16BE = function(offset, noAssert) {
return readUInt16(this, offset, true, noAssert);
};
function readUInt32(buffer, offset, isBigEndian, noAssert) {
var val = 0;
if (!noAssert) {
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 3 < buffer.length,
'Trying to read beyond buffer length');
}
if (offset >= buffer.length) return 0;
if (isBigEndian) {
if (offset + 1 < buffer.length)
val = buffer.parent[buffer.offset + offset + 1] << 16;
if (offset + 2 < buffer.length)
val |= buffer.parent[buffer.offset + offset + 2] << 8;
if (offset + 3 < buffer.length)
val |= buffer.parent[buffer.offset + offset + 3];
val = val + (buffer.parent[buffer.offset + offset] << 24 >>> 0);
} else {
if (offset + 2 < buffer.length)
val = buffer.parent[buffer.offset + offset + 2] << 16;
if (offset + 1 < buffer.length)
val |= buffer.parent[buffer.offset + offset + 1] << 8;
val |= buffer.parent[buffer.offset + offset];
if (offset + 3 < buffer.length)
val = val + (buffer.parent[buffer.offset + offset + 3] << 24 >>> 0);
}
return val;
}
Buffer.prototype.readUInt32LE = function(offset, noAssert) {
return readUInt32(this, offset, false, noAssert);
};
Buffer.prototype.readUInt32BE = function(offset, noAssert) {
return readUInt32(this, offset, true, noAssert);
};
/*
* Signed integer types, yay team! A reminder on how two's complement actually
* works. The first bit is the signed bit, i.e. tells us whether or not the
* number should be positive or negative. If the two's complement value is
* positive, then we're done, as it's equivalent to the unsigned representation.
*
* Now if the number is positive, you're pretty much done, you can just leverage
* the unsigned translations and return those. Unfortunately, negative numbers
* aren't quite that straightforward.
*
* At first glance, one might be inclined to use the traditional formula to
* translate binary numbers between the positive and negative values in two's
* complement. (Though it doesn't quite work for the most negative value)
* Mainly:
* - invert all the bits
* - add one to the result
*
* Of course, this doesn't quite work in Javascript. Take for example the value
* of -128. This could be represented in 16 bits (big-endian) as 0xff80. But of
* course, Javascript will do the following:
*
* > ~0xff80
* -65409
*
* Whoh there, Javascript, that's not quite right. But wait, according to
* Javascript that's perfectly correct. When Javascript ends up seeing the
* constant 0xff80, it has no notion that it is actually a signed number. It
* assumes that we've input the unsigned value 0xff80. Thus, when it does the
* binary negation, it casts it into a signed value, (positive 0xff80). Then
* when you perform binary negation on that, it turns it into a negative number.
*
* Instead, we're going to have to use the following general formula, that works
* in a rather Javascript friendly way. I'm glad we don't support this kind of
* weird numbering scheme in the kernel.
*
* (BIT-MAX - (unsigned)val + 1) * -1
*
* The astute observer, may think that this doesn't make sense for 8-bit numbers
* (really it isn't necessary for them). However, when you get 16-bit numbers,
* you do. Let's go back to our prior example and see how this will look:
*
* (0xffff - 0xff80 + 1) * -1
* (0x007f + 1) * -1
* (0x0080) * -1
*/
Buffer.prototype.readInt8 = function(offset, noAssert) {
var buffer = this;
var neg;
if (!noAssert) {
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset < buffer.length,
'Trying to read beyond buffer length');
}
if (offset >= buffer.length) return;
neg = buffer.parent[buffer.offset + offset] & 0x80;
if (!neg) {
return (buffer.parent[buffer.offset + offset]);
}
return ((0xff - buffer.parent[buffer.offset + offset] + 1) * -1);
};
function readInt16(buffer, offset, isBigEndian, noAssert) {
var neg, val;
if (!noAssert) {
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 1 < buffer.length,
'Trying to read beyond buffer length');
}
val = readUInt16(buffer, offset, isBigEndian, noAssert);
neg = val & 0x8000;
if (!neg) {
return val;
}
return (0xffff - val + 1) * -1;
}
Buffer.prototype.readInt16LE = function(offset, noAssert) {
return readInt16(this, offset, false, noAssert);
};
Buffer.prototype.readInt16BE = function(offset, noAssert) {
return readInt16(this, offset, true, noAssert);
};
function readInt32(buffer, offset, isBigEndian, noAssert) {
var neg, val;
if (!noAssert) {
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 3 < buffer.length,
'Trying to read beyond buffer length');
}
val = readUInt32(buffer, offset, isBigEndian, noAssert);
neg = val & 0x80000000;
if (!neg) {
return (val);
}
return (0xffffffff - val + 1) * -1;
}
Buffer.prototype.readInt32LE = function(offset, noAssert) {
return readInt32(this, offset, false, noAssert);
};
Buffer.prototype.readInt32BE = function(offset, noAssert) {
return readInt32(this, offset, true, noAssert);
};
function readFloat(buffer, offset, isBigEndian, noAssert) {
if (!noAssert) {
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset + 3 < buffer.length,
'Trying to read beyond buffer length');
}
return require('./buffer_ieee754').readIEEE754(buffer, offset, isBigEndian,
23, 4);
}
Buffer.prototype.readFloatLE = function(offset, noAssert) {
return readFloat(this, offset, false, noAssert);
};
Buffer.prototype.readFloatBE = function(offset, noAssert) {
return readFloat(this, offset, true, noAssert);
};
function readDouble(buffer, offset, isBigEndian, noAssert) {
if (!noAssert) {
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset + 7 < buffer.length,
'Trying to read beyond buffer length');
}
return require('./buffer_ieee754').readIEEE754(buffer, offset, isBigEndian,
52, 8);
}
Buffer.prototype.readDoubleLE = function(offset, noAssert) {
return readDouble(this, offset, false, noAssert);
};
Buffer.prototype.readDoubleBE = function(offset, noAssert) {
return readDouble(this, offset, true, noAssert);
};
/*
* We have to make sure that the value is a valid integer. This means that it is
* non-negative. It has no fractional component and that it does not exceed the
* maximum allowed value.
*
* value The number to check for validity
*
* max The maximum value
*/
function verifuint(value, max) {
assert.ok(typeof (value) == 'number',
'cannot write a non-number as a number');
assert.ok(value >= 0,
'specified a negative value for writing an unsigned value');
assert.ok(value <= max, 'value is larger than maximum value for type');
assert.ok(Math.floor(value) === value, 'value has a fractional component');
}
Buffer.prototype.writeUInt8 = function(value, offset, noAssert) {
var buffer = this;
if (!noAssert) {
assert.ok(value !== undefined && value !== null,
'missing value');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset < buffer.length,
'trying to write beyond buffer length');
verifuint(value, 0xff);
}
if (offset < buffer.length) {
buffer.parent[buffer.offset + offset] = value;
}
};
function writeUInt16(buffer, value, offset, isBigEndian, noAssert) {
if (!noAssert) {
assert.ok(value !== undefined && value !== null,
'missing value');
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 1 < buffer.length,
'trying to write beyond buffer length');
verifuint(value, 0xffff);
}
for (var i = 0; i < Math.min(buffer.length - offset, 2); i++) {
buffer.parent[buffer.offset + offset + i] =
(value & (0xff << (8 * (isBigEndian ? 1 - i : i)))) >>>
(isBigEndian ? 1 - i : i) * 8;
}
}
Buffer.prototype.writeUInt16LE = function(value, offset, noAssert) {
writeUInt16(this, value, offset, false, noAssert);
};
Buffer.prototype.writeUInt16BE = function(value, offset, noAssert) {
writeUInt16(this, value, offset, true, noAssert);
};
function writeUInt32(buffer, value, offset, isBigEndian, noAssert) {
if (!noAssert) {
assert.ok(value !== undefined && value !== null,
'missing value');
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 3 < buffer.length,
'trying to write beyond buffer length');
verifuint(value, 0xffffffff);
}
for (var i = 0; i < Math.min(buffer.length - offset, 4); i++) {
buffer.parent[buffer.offset + offset + i] =
(value >>> (isBigEndian ? 3 - i : i) * 8) & 0xff;
}
}
Buffer.prototype.writeUInt32LE = function(value, offset, noAssert) {
writeUInt32(this, value, offset, false, noAssert);
};
Buffer.prototype.writeUInt32BE = function(value, offset, noAssert) {
writeUInt32(this, value, offset, true, noAssert);
};
/*
* We now move onto our friends in the signed number category. Unlike unsigned
* numbers, we're going to have to worry a bit more about how we put values into
* arrays. Since we are only worrying about signed 32-bit values, we're in
* slightly better shape. Unfortunately, we really can't do our favorite binary
* & in this system. It really seems to do the wrong thing. For example:
*
* > -32 & 0xff
* 224
*
* What's happening above is really: 0xe0 & 0xff = 0xe0. However, the results of
* this aren't treated as a signed number. Ultimately a bad thing.
*
* What we're going to want to do is basically create the unsigned equivalent of
* our representation and pass that off to the wuint* functions. To do that
* we're going to do the following:
*
* - if the value is positive
* we can pass it directly off to the equivalent wuint
* - if the value is negative
* we do the following computation:
* mb + val + 1, where
* mb is the maximum unsigned value in that byte size
* val is the Javascript negative integer
*
*
* As a concrete value, take -128. In signed 16 bits this would be 0xff80. If
* you do out the computations:
*
* 0xffff - 128 + 1
* 0xffff - 127
* 0xff80
*
* You can then encode this value as the signed version. This is really rather
* hacky, but it should work and get the job done which is our goal here.
*/
/*
* A series of checks to make sure we actually have a signed 32-bit number
*/
function verifsint(value, max, min) {
assert.ok(typeof (value) == 'number',
'cannot write a non-number as a number');
assert.ok(value <= max, 'value larger than maximum allowed value');
assert.ok(value >= min, 'value smaller than minimum allowed value');
assert.ok(Math.floor(value) === value, 'value has a fractional component');
}
function verifIEEE754(value, max, min) {
assert.ok(typeof (value) == 'number',
'cannot write a non-number as a number');
assert.ok(value <= max, 'value larger than maximum allowed value');
assert.ok(value >= min, 'value smaller than minimum allowed value');
}
Buffer.prototype.writeInt8 = function(value, offset, noAssert) {
var buffer = this;
if (!noAssert) {
assert.ok(value !== undefined && value !== null,
'missing value');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset < buffer.length,
'Trying to write beyond buffer length');
verifsint(value, 0x7f, -0x80);
}
if (value >= 0) {
buffer.writeUInt8(value, offset, noAssert);
} else {
buffer.writeUInt8(0xff + value + 1, offset, noAssert);
}
};
function writeInt16(buffer, value, offset, isBigEndian, noAssert) {
if (!noAssert) {
assert.ok(value !== undefined && value !== null,
'missing value');
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 1 < buffer.length,
'Trying to write beyond buffer length');
verifsint(value, 0x7fff, -0x8000);
}
if (value >= 0) {
writeUInt16(buffer, value, offset, isBigEndian, noAssert);
} else {
writeUInt16(buffer, 0xffff + value + 1, offset, isBigEndian, noAssert);
}
}
Buffer.prototype.writeInt16LE = function(value, offset, noAssert) {
writeInt16(this, value, offset, false, noAssert);
};
Buffer.prototype.writeInt16BE = function(value, offset, noAssert) {
writeInt16(this, value, offset, true, noAssert);
};
function writeInt32(buffer, value, offset, isBigEndian, noAssert) {
if (!noAssert) {
assert.ok(value !== undefined && value !== null,
'missing value');
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 3 < buffer.length,
'Trying to write beyond buffer length');
verifsint(value, 0x7fffffff, -0x80000000);
}
if (value >= 0) {
writeUInt32(buffer, value, offset, isBigEndian, noAssert);
} else {
writeUInt32(buffer, 0xffffffff + value + 1, offset, isBigEndian, noAssert);
}
}
Buffer.prototype.writeInt32LE = function(value, offset, noAssert) {
writeInt32(this, value, offset, false, noAssert);
};
Buffer.prototype.writeInt32BE = function(value, offset, noAssert) {
writeInt32(this, value, offset, true, noAssert);
};
function writeFloat(buffer, value, offset, isBigEndian, noAssert) {
if (!noAssert) {
assert.ok(value !== undefined && value !== null,
'missing value');
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 3 < buffer.length,
'Trying to write beyond buffer length');
verifIEEE754(value, 3.4028234663852886e+38, -3.4028234663852886e+38);
}
require('./buffer_ieee754').writeIEEE754(buffer, value, offset, isBigEndian,
23, 4);
}
Buffer.prototype.writeFloatLE = function(value, offset, noAssert) {
writeFloat(this, value, offset, false, noAssert);
};
Buffer.prototype.writeFloatBE = function(value, offset, noAssert) {
writeFloat(this, value, offset, true, noAssert);
};
function writeDouble(buffer, value, offset, isBigEndian, noAssert) {
if (!noAssert) {
assert.ok(value !== undefined && value !== null,
'missing value');
assert.ok(typeof (isBigEndian) === 'boolean',
'missing or invalid endian');
assert.ok(offset !== undefined && offset !== null,
'missing offset');
assert.ok(offset + 7 < buffer.length,
'Trying to write beyond buffer length');
verifIEEE754(value, 1.7976931348623157E+308, -1.7976931348623157E+308);
}
require('./buffer_ieee754').writeIEEE754(buffer, value, offset, isBigEndian,
52, 8);
}
Buffer.prototype.writeDoubleLE = function(value, offset, noAssert) {
writeDouble(this, value, offset, false, noAssert);
};
Buffer.prototype.writeDoubleBE = function(value, offset, noAssert) {
writeDouble(this, value, offset, true, noAssert);
};
SlowBuffer.prototype.readUInt8 = Buffer.prototype.readUInt8;
SlowBuffer.prototype.readUInt16LE = Buffer.prototype.readUInt16LE;
SlowBuffer.prototype.readUInt16BE = Buffer.prototype.readUInt16BE;
SlowBuffer.prototype.readUInt32LE = Buffer.prototype.readUInt32LE;
SlowBuffer.prototype.readUInt32BE = Buffer.prototype.readUInt32BE;
SlowBuffer.prototype.readInt8 = Buffer.prototype.readInt8;
SlowBuffer.prototype.readInt16LE = Buffer.prototype.readInt16LE;
SlowBuffer.prototype.readInt16BE = Buffer.prototype.readInt16BE;
SlowBuffer.prototype.readInt32LE = Buffer.prototype.readInt32LE;
SlowBuffer.prototype.readInt32BE = Buffer.prototype.readInt32BE;
SlowBuffer.prototype.readFloatLE = Buffer.prototype.readFloatLE;
SlowBuffer.prototype.readFloatBE = Buffer.prototype.readFloatBE;
SlowBuffer.prototype.readDoubleLE = Buffer.prototype.readDoubleLE;
SlowBuffer.prototype.readDoubleBE = Buffer.prototype.readDoubleBE;
SlowBuffer.prototype.writeUInt8 = Buffer.prototype.writeUInt8;
SlowBuffer.prototype.writeUInt16LE = Buffer.prototype.writeUInt16LE;
SlowBuffer.prototype.writeUInt16BE = Buffer.prototype.writeUInt16BE;
SlowBuffer.prototype.writeUInt32LE = Buffer.prototype.writeUInt32LE;
SlowBuffer.prototype.writeUInt32BE = Buffer.prototype.writeUInt32BE;
SlowBuffer.prototype.writeInt8 = Buffer.prototype.writeInt8;
SlowBuffer.prototype.writeInt16LE = Buffer.prototype.writeInt16LE;
SlowBuffer.prototype.writeInt16BE = Buffer.prototype.writeInt16BE;
SlowBuffer.prototype.writeInt32LE = Buffer.prototype.writeInt32LE;
SlowBuffer.prototype.writeInt32BE = Buffer.prototype.writeInt32BE;
SlowBuffer.prototype.writeFloatLE = Buffer.prototype.writeFloatLE;
SlowBuffer.prototype.writeFloatBE = Buffer.prototype.writeFloatBE;
SlowBuffer.prototype.writeDoubleLE = Buffer.prototype.writeDoubleLE;
SlowBuffer.prototype.writeDoubleBE = Buffer.prototype.writeDoubleBE;
})()
},{"assert":9,"./buffer_ieee754":14,"base64-js":15}],15:[function(require,module,exports){
(function (exports) {
'use strict';
var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
function b64ToByteArray(b64) {
var i, j, l, tmp, placeHolders, arr;
if (b64.length % 4 > 0) {
throw 'Invalid string. Length must be a multiple of 4';
}
// the number of equal signs (place holders)
// if there are two placeholders, than the two characters before it
// represent one byte
// if there is only one, then the three characters before it represent 2 bytes
// this is just a cheap hack to not do indexOf twice
placeHolders = b64.indexOf('=');
placeHolders = placeHolders > 0 ? b64.length - placeHolders : 0;
// base64 is 4/3 + up to two characters of the original data
arr = [];//new Uint8Array(b64.length * 3 / 4 - placeHolders);
// if there are placeholders, only get up to the last complete 4 chars
l = placeHolders > 0 ? b64.length - 4 : b64.length;
for (i = 0, j = 0; i < l; i += 4, j += 3) {
tmp = (lookup.indexOf(b64[i]) << 18) | (lookup.indexOf(b64[i + 1]) << 12) | (lookup.indexOf(b64[i + 2]) << 6) | lookup.indexOf(b64[i + 3]);
arr.push((tmp & 0xFF0000) >> 16);
arr.push((tmp & 0xFF00) >> 8);
arr.push(tmp & 0xFF);
}
if (placeHolders === 2) {
tmp = (lookup.indexOf(b64[i]) << 2) | (lookup.indexOf(b64[i + 1]) >> 4);
arr.push(tmp & 0xFF);
} else if (placeHolders === 1) {
tmp = (lookup.indexOf(b64[i]) << 10) | (lookup.indexOf(b64[i + 1]) << 4) | (lookup.indexOf(b64[i + 2]) >> 2);
arr.push((tmp >> 8) & 0xFF);
arr.push(tmp & 0xFF);
}
return arr;
}
function uint8ToBase64(uint8) {
var i,
extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
output = "",
temp, length;
function tripletToBase64 (num) {
return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F];
};
// go through the array every three bytes, we'll deal with trailing stuff later
for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]);
output += tripletToBase64(temp);
}
// pad the end with zeros, but make sure to not forget the extra bytes
switch (extraBytes) {
case 1:
temp = uint8[uint8.length - 1];
output += lookup[temp >> 2];
output += lookup[(temp << 4) & 0x3F];
output += '==';
break;
case 2:
temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1]);
output += lookup[temp >> 10];
output += lookup[(temp >> 4) & 0x3F];
output += lookup[(temp << 2) & 0x3F];
output += '=';
break;
}
return output;
}
module.exports.toByteArray = b64ToByteArray;
module.exports.fromByteArray = uint8ToBase64;
}());
},{}]},{},["E/GbHF"])
;
JSHINT = require('jshint').JSHINT;
}());