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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* 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";
const { reportException } = require("devtools/shared/DevToolsUtils");
const { Task } = require("devtools/shared/task");
function asPaused(client, func) {
if (client.state != "paused") {
return Task.spawn(function* () {
yield client.interrupt();
let result;
try {
result = yield func();
}
catch (e) {
// Try to put the debugger back in a working state by resuming
// it
yield client.resume();
throw e;
}
yield client.resume();
return result;
});
} else {
return func();
}
}
function handleError(err) {
reportException("promise", err.toString());
}
function onReducerEvents(controller, listeners, thisContext) {
Object.keys(listeners).forEach(name => {
const listener = listeners[name];
controller.onChange(name, payload => {
listener.call(thisContext, payload);
});
});
}
function _getIn(destObj, path) {
return path.reduce(function (acc, name) {
return acc[name];
}, destObj);
}
function mergeIn(destObj, path, value) {
path = [...path];
path.reverse();
var obj = path.reduce(function (acc, name) {
return { [name]: acc };
}, value);
return destObj.merge(obj, { deep: true });
}
function setIn(destObj, path, value) {
destObj = mergeIn(destObj, path, null);
return mergeIn(destObj, path, value);
}
function updateIn(destObj, path, fn) {
return setIn(destObj, path, fn(_getIn(destObj, path)));
}
function deleteIn(destObj, path) {
const objPath = path.slice(0, -1);
const propName = path[path.length - 1];
const obj = _getIn(destObj, objPath);
return setIn(destObj, objPath, obj.without(propName));
}
module.exports = {
asPaused,
handleError,
onReducerEvents,
mergeIn,
setIn,
updateIn,
deleteIn
};
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