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4 years ago
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
module.exports = function forEachBail(array, iterator, callback) {
if (array.length === 0) return callback();
let currentPos = array.length;
let currentResult;
let done = [];
for (let i = 0; i < array.length; i++) {
const itCb = createIteratorCallback(i);
iterator(array[i], itCb);
if (currentPos === 0) break;
}
function createIteratorCallback(i) {
return (...args) => {
if (i >= currentPos) return; // ignore
done.push(i);
if (args.length > 0) {
currentPos = i + 1;
done = done.filter(item => {
return item <= i;
});
currentResult = args;
}
if (done.length === currentPos) {
callback.apply(null, currentResult);
currentPos = 0;
}
};
}
};
module.exports.withIndex = function forEachBailWithIndex(
array,
iterator,
callback
) {
if (array.length === 0) return callback();
let currentPos = array.length;
let currentResult;
let done = [];
for (let i = 0; i < array.length; i++) {
const itCb = createIteratorCallback(i);
iterator(array[i], i, itCb);
if (currentPos === 0) break;
}
function createIteratorCallback(i) {
return (...args) => {
if (i >= currentPos) return; // ignore
done.push(i);
if (args.length > 0) {
currentPos = i + 1;
done = done.filter(item => {
return item <= i;
});
currentResult = args;
}
if (done.length === currentPos) {
callback.apply(null, currentResult);
currentPos = 0;
}
};
}
};