realm-js/lib/lists.js

64 lines
1.4 KiB
JavaScript

'use strict';
let rpc = require('./rpc');
let util = require('./util');
let idKey = Symbol();
let realmKey = Symbol();
let prototype = {};
exports.create = create;
[
'pop',
'shift',
'push',
'unshift',
'splice',
].forEach(function(name) {
Object.defineProperty(prototype, name, {
value: function() {
let listId = this[idKey];
let realmId = this[realmKey];
if (!listId || !realmId) {
throw new TypeError(name + ' method was not called on a List!');
}
let result = rpc.callListMethod(realmId, listId, name, Array.from(arguments));
this[util.resizeListKey]();
return result;
}
});
});
function create(realmId, info) {
let list = util.createList(prototype, getterForLength, getterForIndex, setterForIndex);
let size = info.size;
list[realmKey] = realmId;
list[idKey] = info.id;
list[util.resizeListKey](size);
return list;
}
function getterForLength() {
return rpc.getListSize(this[realmKey], this[idKey]);
}
function getterForIndex(index) {
return function() {
let realmId = this[realmKey];
return rpc.getListItem(realmId, this[idKey], index);
};
}
function setterForIndex(index) {
return function(value) {
rpc.setListItem(this[realmKey], this[idKey], index, value);
};
}