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Fix Promise.reduce unhandled rejections (#1501) #1502

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Fix Promise.reduce unhandled rejections (#1501) #1502

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11 changes: 10 additions & 1 deletion src/reduce.js
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Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,15 @@ ReductionPromiseArray.prototype._iterate = function (values) {

this._currentCancellable = value;

var promise = this._promise;
var maybePromise;
for (var j = i; j < length; ++j) {
maybePromise = values[j] = tryConvertToPromise(values[j], promise);
if (maybePromise instanceof Promise) {
maybePromise.suppressUnhandledRejections();
}
}

if (!value.isRejected()) {
for (; i < length; ++i) {
var ctx = {
Expand Down Expand Up @@ -142,7 +151,7 @@ function reduce(promises, fn, initialValue, _each) {
function gotAccum(accum) {
this.accum = accum;
this.array._gotAccum(accum);
var value = tryConvertToPromise(this.value, this.array._promise);
var value = this.value;
if (value instanceof Promise) {
this.array._currentCancellable = value;
return value._then(gotValue, undefined, undefined, this, undefined);
Expand Down