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Diffstat (limited to 'node_modules/bluebird/js/main/props.js')
-rw-r--r-- | node_modules/bluebird/js/main/props.js | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/node_modules/bluebird/js/main/props.js b/node_modules/bluebird/js/main/props.js new file mode 100644 index 000000000..d6f9e64b0 --- /dev/null +++ b/node_modules/bluebird/js/main/props.js @@ -0,0 +1,79 @@ +"use strict"; +module.exports = function( + Promise, PromiseArray, tryConvertToPromise, apiRejection) { +var util = require("./util.js"); +var isObject = util.isObject; +var es5 = require("./es5.js"); + +function PropertiesPromiseArray(obj) { + var keys = es5.keys(obj); + var len = keys.length; + var values = new Array(len * 2); + for (var i = 0; i < len; ++i) { + var key = keys[i]; + values[i] = obj[key]; + values[i + len] = key; + } + this.constructor$(values); +} +util.inherits(PropertiesPromiseArray, PromiseArray); + +PropertiesPromiseArray.prototype._init = function () { + this._init$(undefined, -3) ; +}; + +PropertiesPromiseArray.prototype._promiseFulfilled = function (value, index) { + this._values[index] = value; + var totalResolved = ++this._totalResolved; + if (totalResolved >= this._length) { + var val = {}; + var keyOffset = this.length(); + for (var i = 0, len = this.length(); i < len; ++i) { + val[this._values[i + keyOffset]] = this._values[i]; + } + this._resolve(val); + } +}; + +PropertiesPromiseArray.prototype._promiseProgressed = function (value, index) { + this._promise._progress({ + key: this._values[index + this.length()], + value: value + }); +}; + +PropertiesPromiseArray.prototype.shouldCopyValues = function () { + return false; +}; + +PropertiesPromiseArray.prototype.getActualLength = function (len) { + return len >> 1; +}; + +function props(promises) { + var ret; + var castValue = tryConvertToPromise(promises); + + if (!isObject(castValue)) { + return apiRejection("cannot await properties of a non-object\u000a\u000a See http://goo.gl/OsFKC8\u000a"); + } else if (castValue instanceof Promise) { + ret = castValue._then( + Promise.props, undefined, undefined, undefined, undefined); + } else { + ret = new PropertiesPromiseArray(castValue).promise(); + } + + if (castValue instanceof Promise) { + ret._propagateFrom(castValue, 4); + } + return ret; +} + +Promise.prototype.props = function () { + return props(this); +}; + +Promise.props = function (promises) { + return props(promises); +}; +}; |