summaryrefslogtreecommitdiff
path: root/deps/npm/node_modules/bluebird/js/release/reduce.js
diff options
context:
space:
mode:
Diffstat (limited to 'deps/npm/node_modules/bluebird/js/release/reduce.js')
-rw-r--r--deps/npm/node_modules/bluebird/js/release/reduce.js172
1 files changed, 172 insertions, 0 deletions
diff --git a/deps/npm/node_modules/bluebird/js/release/reduce.js b/deps/npm/node_modules/bluebird/js/release/reduce.js
new file mode 100644
index 0000000000..e8b7843e55
--- /dev/null
+++ b/deps/npm/node_modules/bluebird/js/release/reduce.js
@@ -0,0 +1,172 @@
+"use strict";
+module.exports = function(Promise,
+ PromiseArray,
+ apiRejection,
+ tryConvertToPromise,
+ INTERNAL,
+ debug) {
+var getDomain = Promise._getDomain;
+var util = require("./util");
+var tryCatch = util.tryCatch;
+
+function ReductionPromiseArray(promises, fn, initialValue, _each) {
+ this.constructor$(promises);
+ var domain = getDomain();
+ this._fn = domain === null ? fn : util.domainBind(domain, fn);
+ if (initialValue !== undefined) {
+ initialValue = Promise.resolve(initialValue);
+ initialValue._attachCancellationCallback(this);
+ }
+ this._initialValue = initialValue;
+ this._currentCancellable = null;
+ if(_each === INTERNAL) {
+ this._eachValues = Array(this._length);
+ } else if (_each === 0) {
+ this._eachValues = null;
+ } else {
+ this._eachValues = undefined;
+ }
+ this._promise._captureStackTrace();
+ this._init$(undefined, -5);
+}
+util.inherits(ReductionPromiseArray, PromiseArray);
+
+ReductionPromiseArray.prototype._gotAccum = function(accum) {
+ if (this._eachValues !== undefined &&
+ this._eachValues !== null &&
+ accum !== INTERNAL) {
+ this._eachValues.push(accum);
+ }
+};
+
+ReductionPromiseArray.prototype._eachComplete = function(value) {
+ if (this._eachValues !== null) {
+ this._eachValues.push(value);
+ }
+ return this._eachValues;
+};
+
+ReductionPromiseArray.prototype._init = function() {};
+
+ReductionPromiseArray.prototype._resolveEmptyArray = function() {
+ this._resolve(this._eachValues !== undefined ? this._eachValues
+ : this._initialValue);
+};
+
+ReductionPromiseArray.prototype.shouldCopyValues = function () {
+ return false;
+};
+
+ReductionPromiseArray.prototype._resolve = function(value) {
+ this._promise._resolveCallback(value);
+ this._values = null;
+};
+
+ReductionPromiseArray.prototype._resultCancelled = function(sender) {
+ if (sender === this._initialValue) return this._cancel();
+ if (this._isResolved()) return;
+ this._resultCancelled$();
+ if (this._currentCancellable instanceof Promise) {
+ this._currentCancellable.cancel();
+ }
+ if (this._initialValue instanceof Promise) {
+ this._initialValue.cancel();
+ }
+};
+
+ReductionPromiseArray.prototype._iterate = function (values) {
+ this._values = values;
+ var value;
+ var i;
+ var length = values.length;
+ if (this._initialValue !== undefined) {
+ value = this._initialValue;
+ i = 0;
+ } else {
+ value = Promise.resolve(values[0]);
+ i = 1;
+ }
+
+ this._currentCancellable = value;
+
+ if (!value.isRejected()) {
+ for (; i < length; ++i) {
+ var ctx = {
+ accum: null,
+ value: values[i],
+ index: i,
+ length: length,
+ array: this
+ };
+ value = value._then(gotAccum, undefined, undefined, ctx, undefined);
+ }
+ }
+
+ if (this._eachValues !== undefined) {
+ value = value
+ ._then(this._eachComplete, undefined, undefined, this, undefined);
+ }
+ value._then(completed, completed, undefined, value, this);
+};
+
+Promise.prototype.reduce = function (fn, initialValue) {
+ return reduce(this, fn, initialValue, null);
+};
+
+Promise.reduce = function (promises, fn, initialValue, _each) {
+ return reduce(promises, fn, initialValue, _each);
+};
+
+function completed(valueOrReason, array) {
+ if (this.isFulfilled()) {
+ array._resolve(valueOrReason);
+ } else {
+ array._reject(valueOrReason);
+ }
+}
+
+function reduce(promises, fn, initialValue, _each) {
+ if (typeof fn !== "function") {
+ return apiRejection("expecting a function but got " + util.classString(fn));
+ }
+ var array = new ReductionPromiseArray(promises, fn, initialValue, _each);
+ return array.promise();
+}
+
+function gotAccum(accum) {
+ this.accum = accum;
+ this.array._gotAccum(accum);
+ var value = tryConvertToPromise(this.value, this.array._promise);
+ if (value instanceof Promise) {
+ this.array._currentCancellable = value;
+ return value._then(gotValue, undefined, undefined, this, undefined);
+ } else {
+ return gotValue.call(this, value);
+ }
+}
+
+function gotValue(value) {
+ var array = this.array;
+ var promise = array._promise;
+ var fn = tryCatch(array._fn);
+ promise._pushContext();
+ var ret;
+ if (array._eachValues !== undefined) {
+ ret = fn.call(promise._boundValue(), value, this.index, this.length);
+ } else {
+ ret = fn.call(promise._boundValue(),
+ this.accum, value, this.index, this.length);
+ }
+ if (ret instanceof Promise) {
+ array._currentCancellable = ret;
+ }
+ var promiseCreated = promise._popContext();
+ debug.checkForgottenReturns(
+ ret,
+ promiseCreated,
+ array._eachValues !== undefined ? "Promise.each" : "Promise.reduce",
+ promise
+ );
+ return ret;
+}
+};