packages/remote-context/src/actions/LocalSetPrototypeOfAction.js
/**
* Copyright 2017 Moshe Simantov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { trimArgumentsList } from 'remote-instance';
import ReferenceAction from './ReferenceAction';
export default class LocalSetPrototypeOfAction extends ReferenceAction {
static fromRemote(session, reference, prototype) {
return new this(reference, session.dispatch(prototype));
}
constructor(reference, prototype = null) {
if (prototype !== null && !(prototype instanceof ReferenceAction)) {
throw new TypeError(`Invalid prototype: ${prototype}`);
}
super(reference);
this.prototype = prototype;
}
fetch(session) {
const target = session.get(this.reference);
if (!session.isWritable(target)) {
throw new TypeError(
`Can't set prototype of a read-only object: ${target}`
);
}
const prototype = session.fetch(this.prototype);
return Reflect.setPrototypeOf(target, prototype);
}
exec(session) {
this.fetch(session);
}
toArgumentsList() {
const argumentsList = [this.reference, this.prototype];
const defaults = [undefined, null];
return trimArgumentsList(argumentsList, defaults);
}
}