diff options
Diffstat (limited to 'node_modules/bluebird/js/main/util.js')
| -rw-r--r-- | node_modules/bluebird/js/main/util.js | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/node_modules/bluebird/js/main/util.js b/node_modules/bluebird/js/main/util.js new file mode 100644 index 000000000..fdb7416f9 --- /dev/null +++ b/node_modules/bluebird/js/main/util.js @@ -0,0 +1,296 @@ +"use strict"; +var es5 = require("./es5.js"); +var canEvaluate = typeof navigator == "undefined"; +var haveGetters = (function(){ + try { + var o = {}; + es5.defineProperty(o, "f", { + get: function () { + return 3; + } + }); + return o.f === 3; + } + catch (e) { + return false; + } + +})(); + +var errorObj = {e: {}}; +var tryCatchTarget; +function tryCatcher() { + try { + return tryCatchTarget.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 !isPrimitive(value); +} + +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; +} + + +var wrapsPrimitiveReceiver = (function() { + return this !== "string"; +}).call("string"); + +function thrower(r) { + throw r; +} + +var inheritedDataKeys = (function() { + if (es5.isES5) { + var oProto = Object.prototype; + var getKeys = Object.getOwnPropertyNames; + return function(obj) { + var ret = []; + var visitedKeys = Object.create(null); + while (obj != null && obj !== oProto) { + 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 { + return function(obj) { + var ret = []; + /*jshint forin:false */ + for (var key in obj) { + 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); + if (((es5.isES5 && keys.length > 1) || + (keys.length > 0 && + !(keys.length === 1 && keys[0] === "constructor"))) || + thisAssignmentPattern.test(fn + "")) { + return true; + } + } + return false; + } catch (e) { + return false; + } +} + +function toFastProperties(obj) { + /*jshint -W027,-W055,-W031*/ + function f() {} + f.prototype = obj; + var l = 8; + while (l--) new f(); + 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 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 obj instanceof Error && 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)) { + es5.defineProperty(to, key, es5.getDescriptor(from, key)); + } + } +} + +function isNativeFunctionMethod(fn) { + return fn === fn.call || + fn === fn.toString || + fn === fn.bind || + fn === fn.apply; +} + +var ret = { + isClass: isClass, + isIdentifier: isIdentifier, + inheritedDataKeys: inheritedDataKeys, + getDataPropertyOrDefault: getDataPropertyOrDefault, + thrower: thrower, + isArray: es5.isArray, + haveGetters: haveGetters, + notEnumerableProp: notEnumerableProp, + isPrimitive: isPrimitive, + isObject: isObject, + canEvaluate: canEvaluate, + errorObj: errorObj, + tryCatch: tryCatch, + inherits: inherits, + withAppended: withAppended, + maybeWrapAsError: maybeWrapAsError, + wrapsPrimitiveReceiver: wrapsPrimitiveReceiver, + 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: typeof process !== "undefined" && + classString(process).toLowerCase() === "[object process]", + isNativeFunctionMethod: isNativeFunctionMethod +}; +ret.isRecentNode = ret.isNode && (function() { + var version = process.versions.node.split(".").map(Number); + return (version[0] === 0 && version[1] > 10) || (version[0] > 0); +})(); +try {throw new Error(); } catch (e) {ret.lastLineError = e;} +module.exports = ret; |