99 lines
2.4 KiB
JavaScript
99 lines
2.4 KiB
JavaScript
'use strict';
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let keys = require('./keys');
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let rpc = require('./rpc');
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module.exports = {
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createList,
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createMethods,
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getterForProperty,
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setterForProperty,
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};
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function createList(prototype, realmId, info, mutable) {
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let list = Object.create(prototype);
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let size = 0;
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Object.defineProperty(list, 'length', {get: getterForProperty('length')});
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list[keys.resize] = function(length) {
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if (length == null) {
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length = this.length;
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}
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if (length == size) {
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return;
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}
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if (length > size) {
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let props = {};
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for (let i = size; i < length; i++) {
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props[i] = {
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get: getterForProperty(i),
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set: mutable ? setterForProperty(i) : undefined,
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enumerable: true,
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configurable: true,
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};
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}
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Object.defineProperties(this, props);
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}
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else if (length < size) {
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for (let i = size - 1; i >= length; i--) {
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delete this[i];
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}
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}
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size = length;
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};
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list[keys.realm] = realmId;
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list[keys.id] = info.id;
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list[keys.type] = info.type;
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list[keys.resize](info.size);
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return list;
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}
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function createMethods(prototype, type, methodNames, resize) {
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let props = {};
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for (let name of methodNames) {
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props[name] = {
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value: function() {
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let realmId = this[keys.realm];
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let id = this[keys.id];
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if (!realmId || !id) {
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throw new TypeError(name + ' method was not called a Realm object!');
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}
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if (this[keys.type] !== type) {
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throw new TypeError(name + ' method was called on an object of the wrong type!');
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}
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let result = rpc.callMethod(realmId, id, type, name, Array.from(arguments));
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if (resize) {
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this[keys.resize]();
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}
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return result;
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}
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};
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}
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Object.defineProperties(prototype, props);
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}
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function getterForProperty(name) {
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return function() {
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return rpc.getProperty(this[keys.realm], this[keys.id], name);
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};
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}
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function setterForProperty(name) {
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return function(value) {
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rpc.setProperty(this[keys.realm], this[keys.id], name, value);
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};
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}
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