diff options
Diffstat (limited to 'node_modules/bluebird/js/main/join.js')
-rw-r--r-- | node_modules/bluebird/js/main/join.js | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/node_modules/bluebird/js/main/join.js b/node_modules/bluebird/js/main/join.js new file mode 100644 index 000000000..cf33eb1d0 --- /dev/null +++ b/node_modules/bluebird/js/main/join.js @@ -0,0 +1,107 @@ +"use strict"; +module.exports = +function(Promise, PromiseArray, tryConvertToPromise, INTERNAL) { +var util = require("./util.js"); +var canEvaluate = util.canEvaluate; +var tryCatch = util.tryCatch; +var errorObj = util.errorObj; +var reject; + +if (!false) { +if (canEvaluate) { + var thenCallback = function(i) { + return new Function("value", "holder", " \n\ + 'use strict'; \n\ + holder.pIndex = value; \n\ + holder.checkFulfillment(this); \n\ + ".replace(/Index/g, i)); + }; + + var caller = function(count) { + var values = []; + for (var i = 1; i <= count; ++i) values.push("holder.p" + i); + return new Function("holder", " \n\ + 'use strict'; \n\ + var callback = holder.fn; \n\ + return callback(values); \n\ + ".replace(/values/g, values.join(", "))); + }; + var thenCallbacks = []; + var callers = [undefined]; + for (var i = 1; i <= 5; ++i) { + thenCallbacks.push(thenCallback(i)); + callers.push(caller(i)); + } + + var Holder = function(total, fn) { + this.p1 = this.p2 = this.p3 = this.p4 = this.p5 = null; + this.fn = fn; + this.total = total; + this.now = 0; + }; + + Holder.prototype.callers = callers; + Holder.prototype.checkFulfillment = function(promise) { + var now = this.now; + now++; + var total = this.total; + if (now >= total) { + var handler = this.callers[total]; + promise._pushContext(); + var ret = tryCatch(handler)(this); + promise._popContext(); + if (ret === errorObj) { + promise._rejectCallback(ret.e, false, true); + } else { + promise._resolveCallback(ret); + } + } else { + this.now = now; + } + }; + + var reject = function (reason) { + this._reject(reason); + }; +} +} + +Promise.join = function () { + var last = arguments.length - 1; + var fn; + if (last > 0 && typeof arguments[last] === "function") { + fn = arguments[last]; + if (!false) { + if (last < 6 && canEvaluate) { + var ret = new Promise(INTERNAL); + ret._captureStackTrace(); + var holder = new Holder(last, fn); + var callbacks = thenCallbacks; + for (var i = 0; i < last; ++i) { + var maybePromise = tryConvertToPromise(arguments[i], ret); + if (maybePromise instanceof Promise) { + maybePromise = maybePromise._target(); + if (maybePromise._isPending()) { + maybePromise._then(callbacks[i], reject, + undefined, ret, holder); + } else if (maybePromise._isFulfilled()) { + callbacks[i].call(ret, + maybePromise._value(), holder); + } else { + ret._reject(maybePromise._reason()); + } + } else { + callbacks[i].call(ret, maybePromise, holder); + } + } + return ret; + } + } + } + var $_len = arguments.length;var args = new Array($_len); for(var $_i = 0; $_i < $_len; ++$_i) {args[$_i] = arguments[$_i];} + if (fn) args.pop(); + var ret = new PromiseArray(args).promise(); + return fn !== undefined ? ret.spread(fn) : ret; +}; + +}; |