data-provider-temporary
Version:
Library that helps with server-to-client synchronization of data
80 lines (47 loc) • 5.8 kB
JavaScript
;function _asyncToGenerator(fn) {return function () {var gen = fn.apply(this, arguments);return new Promise(function (resolve, reject) {function step(key, arg) {try {var info = gen[key](arg);var value = info.value;} catch (error) {reject(error);return;}if (info.done) {resolve(value);} else {return Promise.resolve(value).then(function (value) {step("next", value);}, function (err) {step("throw", err);});}}return step("next");});};} /**
* Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*
*/
function treeProcessor(options) {const
nodeComplete =
options.nodeComplete,nodeStart = options.nodeStart,queueRunnerFactory = options.queueRunnerFactory,runnableIds = options.runnableIds,tree = options.tree;
function isEnabled(node, parentEnabled) {
return parentEnabled || runnableIds.indexOf(node.id) !== -1;
}
return queueRunnerFactory({
onException: error => tree.onException(error),
queueableFns: wrapChildren(tree, isEnabled(tree, false)),
userContext: tree.sharedUserContext() });
function executeNode(node, parentEnabled) {
const enabled = isEnabled(node, parentEnabled);
if (!node.children) {
return {
fn(done) {
node.execute(done, enabled);
} };
}
return {
fn(done) {return _asyncToGenerator(function* () {
nodeStart(node);
yield queueRunnerFactory({
onException: function (error) {return node.onException(error);},
queueableFns: wrapChildren(node, enabled),
userContext: node.sharedUserContext() });
nodeComplete(node);
done();})();
} };
}
function wrapChildren(node, enabled) {
if (!node.children) {
throw new Error('`node.children` is not defined.');
}
const children = node.children.map(child => executeNode(child, enabled));
return node.beforeAllFns.concat(children).concat(node.afterAllFns);
}
}
module.exports = treeProcessor;