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/* vim:set ts=2 sw=2 sts=2 et: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
'use strict';
module.metadata = {
"stability": "stable"
};
const { search, remove, store } = require("./passwords/utils");
const { defer, delay } = require("./lang/functional");
/**
* Utility function that returns `onComplete` and `onError` callbacks form the
* given `options` objects. Also properties are removed from the passed
* `options` objects.
* @param {Object} options
* Object that is passed to the exported functions of this module.
* @returns {Function[]}
* Array with two elements `onComplete` and `onError` functions.
*/
function getCallbacks(options) {
let value = [
'onComplete' in options ? options.onComplete : null,
'onError' in options ? defer(options.onError) : console.exception
];
delete options.onComplete;
delete options.onError;
return value;
};
/**
* Creates a wrapper function that tries to call `onComplete` with a return
* value of the wrapped function or falls back to `onError` if wrapped function
* throws an exception.
*/
function createWrapperMethod(wrapped) {
return function (options) {
let [ onComplete, onError ] = getCallbacks(options);
try {
let value = wrapped(options);
if (onComplete) {
delay(function() {
try {
onComplete(value);
} catch (exception) {
onError(exception);
}
});
}
} catch (exception) {
onError(exception);
}
};
}
exports.search = createWrapperMethod(search);
exports.store = createWrapperMethod(store);
exports.remove = createWrapperMethod(remove);
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