380 lines
10 KiB
JavaScript
380 lines
10 KiB
JavaScript
|
"use strict";
|
||
|
|
var es5 = require("./es5");
|
||
|
|
var canEvaluate = typeof navigator == "undefined";
|
||
|
|
|
||
|
|
var errorObj = {e: {}};
|
||
|
|
var tryCatchTarget;
|
||
|
|
var globalObject = typeof self !== "undefined" ? self :
|
||
|
|
typeof window !== "undefined" ? window :
|
||
|
|
typeof global !== "undefined" ? global :
|
||
|
|
this !== undefined ? this : null;
|
||
|
|
|
||
|
|
function tryCatcher() {
|
||
|
|
try {
|
||
|
|
var target = tryCatchTarget;
|
||
|
|
tryCatchTarget = null;
|
||
|
|
return target.apply(this, arguments);
|
||
|
|
} catch (e) {
|
||
|
|
errorObj.e = e;
|
||
|
|
return errorObj;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function tryCatch(fn) {
|
||
|
|
tryCatchTarget = fn;
|
||
|
|
return tryCatcher;
|
||
|
|
}
|
||
|
|
|
||
|
|
var inherits = function(Child, Parent) {
|
||
|
|
var hasProp = {}.hasOwnProperty;
|
||
|
|
|
||
|
|
function T() {
|
||
|
|
this.constructor = Child;
|
||
|
|
this.constructor$ = Parent;
|
||
|
|
for (var propertyName in Parent.prototype) {
|
||
|
|
if (hasProp.call(Parent.prototype, propertyName) &&
|
||
|
|
propertyName.charAt(propertyName.length-1) !== "$"
|
||
|
|
) {
|
||
|
|
this[propertyName + "$"] = Parent.prototype[propertyName];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
T.prototype = Parent.prototype;
|
||
|
|
Child.prototype = new T();
|
||
|
|
return Child.prototype;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
function isPrimitive(val) {
|
||
|
|
return val == null || val === true || val === false ||
|
||
|
|
typeof val === "string" || typeof val === "number";
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function isObject(value) {
|
||
|
|
return typeof value === "function" ||
|
||
|
|
typeof value === "object" && value !== null;
|
||
|
|
}
|
||
|
|
|
||
|
|
function maybeWrapAsError(maybeError) {
|
||
|
|
if (!isPrimitive(maybeError)) return maybeError;
|
||
|
|
|
||
|
|
return new Error(safeToString(maybeError));
|
||
|
|
}
|
||
|
|
|
||
|
|
function withAppended(target, appendee) {
|
||
|
|
var len = target.length;
|
||
|
|
var ret = new Array(len + 1);
|
||
|
|
var i;
|
||
|
|
for (i = 0; i < len; ++i) {
|
||
|
|
ret[i] = target[i];
|
||
|
|
}
|
||
|
|
ret[i] = appendee;
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
function getDataPropertyOrDefault(obj, key, defaultValue) {
|
||
|
|
if (es5.isES5) {
|
||
|
|
var desc = Object.getOwnPropertyDescriptor(obj, key);
|
||
|
|
|
||
|
|
if (desc != null) {
|
||
|
|
return desc.get == null && desc.set == null
|
||
|
|
? desc.value
|
||
|
|
: defaultValue;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return {}.hasOwnProperty.call(obj, key) ? obj[key] : undefined;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function notEnumerableProp(obj, name, value) {
|
||
|
|
if (isPrimitive(obj)) return obj;
|
||
|
|
var descriptor = {
|
||
|
|
value: value,
|
||
|
|
configurable: true,
|
||
|
|
enumerable: false,
|
||
|
|
writable: true
|
||
|
|
};
|
||
|
|
es5.defineProperty(obj, name, descriptor);
|
||
|
|
return obj;
|
||
|
|
}
|
||
|
|
|
||
|
|
function thrower(r) {
|
||
|
|
throw r;
|
||
|
|
}
|
||
|
|
|
||
|
|
var inheritedDataKeys = (function() {
|
||
|
|
var excludedPrototypes = [
|
||
|
|
Array.prototype,
|
||
|
|
Object.prototype,
|
||
|
|
Function.prototype
|
||
|
|
];
|
||
|
|
|
||
|
|
var isExcludedProto = function(val) {
|
||
|
|
for (var i = 0; i < excludedPrototypes.length; ++i) {
|
||
|
|
if (excludedPrototypes[i] === val) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
|
||
|
|
if (es5.isES5) {
|
||
|
|
var getKeys = Object.getOwnPropertyNames;
|
||
|
|
return function(obj) {
|
||
|
|
var ret = [];
|
||
|
|
var visitedKeys = Object.create(null);
|
||
|
|
while (obj != null && !isExcludedProto(obj)) {
|
||
|
|
var keys;
|
||
|
|
try {
|
||
|
|
keys = getKeys(obj);
|
||
|
|
} catch (e) {
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
for (var i = 0; i < keys.length; ++i) {
|
||
|
|
var key = keys[i];
|
||
|
|
if (visitedKeys[key]) continue;
|
||
|
|
visitedKeys[key] = true;
|
||
|
|
var desc = Object.getOwnPropertyDescriptor(obj, key);
|
||
|
|
if (desc != null && desc.get == null && desc.set == null) {
|
||
|
|
ret.push(key);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
obj = es5.getPrototypeOf(obj);
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
} else {
|
||
|
|
var hasProp = {}.hasOwnProperty;
|
||
|
|
return function(obj) {
|
||
|
|
if (isExcludedProto(obj)) return [];
|
||
|
|
var ret = [];
|
||
|
|
|
||
|
|
/*jshint forin:false */
|
||
|
|
enumeration: for (var key in obj) {
|
||
|
|
if (hasProp.call(obj, key)) {
|
||
|
|
ret.push(key);
|
||
|
|
} else {
|
||
|
|
for (var i = 0; i < excludedPrototypes.length; ++i) {
|
||
|
|
if (hasProp.call(excludedPrototypes[i], key)) {
|
||
|
|
continue enumeration;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ret.push(key);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
})();
|
||
|
|
|
||
|
|
var thisAssignmentPattern = /this\s*\.\s*\S+\s*=/;
|
||
|
|
function isClass(fn) {
|
||
|
|
try {
|
||
|
|
if (typeof fn === "function") {
|
||
|
|
var keys = es5.names(fn.prototype);
|
||
|
|
|
||
|
|
var hasMethods = es5.isES5 && keys.length > 1;
|
||
|
|
var hasMethodsOtherThanConstructor = keys.length > 0 &&
|
||
|
|
!(keys.length === 1 && keys[0] === "constructor");
|
||
|
|
var hasThisAssignmentAndStaticMethods =
|
||
|
|
thisAssignmentPattern.test(fn + "") && es5.names(fn).length > 0;
|
||
|
|
|
||
|
|
if (hasMethods || hasMethodsOtherThanConstructor ||
|
||
|
|
hasThisAssignmentAndStaticMethods) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
} catch (e) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function toFastProperties(obj) {
|
||
|
|
/*jshint -W027,-W055,-W031*/
|
||
|
|
function FakeConstructor() {}
|
||
|
|
FakeConstructor.prototype = obj;
|
||
|
|
var l = 8;
|
||
|
|
while (l--) new FakeConstructor();
|
||
|
|
return obj;
|
||
|
|
eval(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
var rident = /^[a-z$_][a-z$_0-9]*$/i;
|
||
|
|
function isIdentifier(str) {
|
||
|
|
return rident.test(str);
|
||
|
|
}
|
||
|
|
|
||
|
|
function filledRange(count, prefix, suffix) {
|
||
|
|
var ret = new Array(count);
|
||
|
|
for(var i = 0; i < count; ++i) {
|
||
|
|
ret[i] = prefix + i + suffix;
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
function safeToString(obj) {
|
||
|
|
try {
|
||
|
|
return obj + "";
|
||
|
|
} catch (e) {
|
||
|
|
return "[no string representation]";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function isError(obj) {
|
||
|
|
return obj !== null &&
|
||
|
|
typeof obj === "object" &&
|
||
|
|
typeof obj.message === "string" &&
|
||
|
|
typeof obj.name === "string";
|
||
|
|
}
|
||
|
|
|
||
|
|
function markAsOriginatingFromRejection(e) {
|
||
|
|
try {
|
||
|
|
notEnumerableProp(e, "isOperational", true);
|
||
|
|
}
|
||
|
|
catch(ignore) {}
|
||
|
|
}
|
||
|
|
|
||
|
|
function originatesFromRejection(e) {
|
||
|
|
if (e == null) return false;
|
||
|
|
return ((e instanceof Error["__BluebirdErrorTypes__"].OperationalError) ||
|
||
|
|
e["isOperational"] === true);
|
||
|
|
}
|
||
|
|
|
||
|
|
function canAttachTrace(obj) {
|
||
|
|
return isError(obj) && es5.propertyIsWritable(obj, "stack");
|
||
|
|
}
|
||
|
|
|
||
|
|
var ensureErrorObject = (function() {
|
||
|
|
if (!("stack" in new Error())) {
|
||
|
|
return function(value) {
|
||
|
|
if (canAttachTrace(value)) return value;
|
||
|
|
try {throw new Error(safeToString(value));}
|
||
|
|
catch(err) {return err;}
|
||
|
|
};
|
||
|
|
} else {
|
||
|
|
return function(value) {
|
||
|
|
if (canAttachTrace(value)) return value;
|
||
|
|
return new Error(safeToString(value));
|
||
|
|
};
|
||
|
|
}
|
||
|
|
})();
|
||
|
|
|
||
|
|
function classString(obj) {
|
||
|
|
return {}.toString.call(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
function copyDescriptors(from, to, filter) {
|
||
|
|
var keys = es5.names(from);
|
||
|
|
for (var i = 0; i < keys.length; ++i) {
|
||
|
|
var key = keys[i];
|
||
|
|
if (filter(key)) {
|
||
|
|
try {
|
||
|
|
es5.defineProperty(to, key, es5.getDescriptor(from, key));
|
||
|
|
} catch (ignore) {}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var asArray = function(v) {
|
||
|
|
if (es5.isArray(v)) {
|
||
|
|
return v;
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
};
|
||
|
|
|
||
|
|
if (typeof Symbol !== "undefined" && Symbol.iterator) {
|
||
|
|
var ArrayFrom = typeof Array.from === "function" ? function(v) {
|
||
|
|
return Array.from(v);
|
||
|
|
} : function(v) {
|
||
|
|
var ret = [];
|
||
|
|
var it = v[Symbol.iterator]();
|
||
|
|
var itResult;
|
||
|
|
while (!((itResult = it.next()).done)) {
|
||
|
|
ret.push(itResult.value);
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
|
||
|
|
asArray = function(v) {
|
||
|
|
if (es5.isArray(v)) {
|
||
|
|
return v;
|
||
|
|
} else if (v != null && typeof v[Symbol.iterator] === "function") {
|
||
|
|
return ArrayFrom(v);
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
var isNode = typeof process !== "undefined" &&
|
||
|
|
classString(process).toLowerCase() === "[object process]";
|
||
|
|
|
||
|
|
var hasEnvVariables = typeof process !== "undefined" &&
|
||
|
|
typeof process.env !== "undefined";
|
||
|
|
|
||
|
|
function env(key) {
|
||
|
|
return hasEnvVariables ? process.env[key] : undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
function getNativePromise() {
|
||
|
|
if (typeof Promise === "function") {
|
||
|
|
try {
|
||
|
|
var promise = new Promise(function(){});
|
||
|
|
if ({}.toString.call(promise) === "[object Promise]") {
|
||
|
|
return Promise;
|
||
|
|
}
|
||
|
|
} catch (e) {}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function domainBind(self, cb) {
|
||
|
|
return self.bind(cb);
|
||
|
|
}
|
||
|
|
|
||
|
|
var ret = {
|
||
|
|
isClass: isClass,
|
||
|
|
isIdentifier: isIdentifier,
|
||
|
|
inheritedDataKeys: inheritedDataKeys,
|
||
|
|
getDataPropertyOrDefault: getDataPropertyOrDefault,
|
||
|
|
thrower: thrower,
|
||
|
|
isArray: es5.isArray,
|
||
|
|
asArray: asArray,
|
||
|
|
notEnumerableProp: notEnumerableProp,
|
||
|
|
isPrimitive: isPrimitive,
|
||
|
|
isObject: isObject,
|
||
|
|
isError: isError,
|
||
|
|
canEvaluate: canEvaluate,
|
||
|
|
errorObj: errorObj,
|
||
|
|
tryCatch: tryCatch,
|
||
|
|
inherits: inherits,
|
||
|
|
withAppended: withAppended,
|
||
|
|
maybeWrapAsError: maybeWrapAsError,
|
||
|
|
toFastProperties: toFastProperties,
|
||
|
|
filledRange: filledRange,
|
||
|
|
toString: safeToString,
|
||
|
|
canAttachTrace: canAttachTrace,
|
||
|
|
ensureErrorObject: ensureErrorObject,
|
||
|
|
originatesFromRejection: originatesFromRejection,
|
||
|
|
markAsOriginatingFromRejection: markAsOriginatingFromRejection,
|
||
|
|
classString: classString,
|
||
|
|
copyDescriptors: copyDescriptors,
|
||
|
|
hasDevTools: typeof chrome !== "undefined" && chrome &&
|
||
|
|
typeof chrome.loadTimes === "function",
|
||
|
|
isNode: isNode,
|
||
|
|
hasEnvVariables: hasEnvVariables,
|
||
|
|
env: env,
|
||
|
|
global: globalObject,
|
||
|
|
getNativePromise: getNativePromise,
|
||
|
|
domainBind: domainBind
|
||
|
|
};
|
||
|
|
ret.isRecentNode = ret.isNode && (function() {
|
||
|
|
var version = process.versions.node.split(".").map(Number);
|
||
|
|
return (version[0] === 0 && version[1] > 10) || (version[0] > 0);
|
||
|
|
})();
|
||
|
|
|
||
|
|
if (ret.isNode) ret.toFastProperties(process);
|
||
|
|
|
||
|
|
try {throw new Error(); } catch (e) {ret.lastLineError = e;}
|
||
|
|
module.exports = ret;
|