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<script>
(function(window) {
'use strict';
window.Gerrit = window.Gerrit || {};
/** @polymerBehavior Gerrit.AsyncForeachBehavior */
Gerrit.AsyncForeachBehavior = {
/**
* @template T
* @param {!Array<T>} array
* @param {!Function} fn An iteratee function to be passed each element of
* the array in order. Must return a promise, and the following
* iteration will not begin until resolution of the promise returned by
* the previous iteration.
*
* An optional second argument to fn is a callback that will halt the
* loop if called.
* @return {!Promise<undefined>}
*/
asyncForeach(array, fn) {
if (!array.length) { return Promise.resolve(); }
let stop = false;
const stopCallback = () => { stop = true; };
return fn(array[0], stopCallback).then(exit => {
if (stop) { return Promise.resolve(); }
return this.asyncForeach(array.slice(1), fn);
});
},
};
})(window);
</script>