89 lines
1.9 KiB
JavaScript
89 lines
1.9 KiB
JavaScript
'use strict';
|
|
|
|
let rpc = require('./rpc');
|
|
|
|
let idKey = Symbol();
|
|
let realmKey = Symbol();
|
|
let prototype = {};
|
|
|
|
exports.create = create;
|
|
|
|
[
|
|
'pop',
|
|
'shift',
|
|
'push',
|
|
'unshift',
|
|
'splice',
|
|
].forEach(function(name, i) {
|
|
let growthMethod = (i >= 2);
|
|
|
|
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));
|
|
|
|
// Since this method might have grown the list, ensure index properties are defined.
|
|
if (growthMethod) {
|
|
defineIndexProperties(this.length);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
});
|
|
});
|
|
|
|
Object.defineProperty(prototype, 'length', {
|
|
get() {
|
|
return rpc.getListSize(this[realmKey], this[idKey]);
|
|
}
|
|
});
|
|
|
|
function create(realmId, info) {
|
|
let list = Object.create(prototype);
|
|
let size = info.size;
|
|
|
|
list[realmKey] = realmId;
|
|
list[idKey] = info.id;
|
|
|
|
defineIndexProperties(size);
|
|
}
|
|
|
|
let maxSize = 0;
|
|
function defineIndexProperties(size) {
|
|
if (size < maxSize) {
|
|
return;
|
|
}
|
|
|
|
let props = {};
|
|
for (let i = maxSize; i <= size; i++) {
|
|
props[i] = {
|
|
get: getterForIndex(i),
|
|
set: setterForIndex(i),
|
|
};
|
|
}
|
|
|
|
// TODO: Use ES6 Proxy once it's supported on Chrome!
|
|
Object.defineProperties(prototype, props);
|
|
|
|
maxSize = size + 1;
|
|
}
|
|
|
|
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);
|
|
};
|
|
}
|