@awayfl/avm2/dist/lib/nat/defineClassLoader.js

Virtual machine for executing AS3 code

import { runtimeWriter } from '../run/writers';
import { release } from '@awayfl/swf-loader';
import { assert } from '@awayjs/graphics';
/**
 * Creates a self patching getter that lazily constructs the class and memoizes
 * to the class's instance constructor.
 */
export function defineClassLoader(applicationDomain, container, mn, classAlias) {
    Object.defineProperty(container, classAlias, {
        get: function () {
            runtimeWriter && runtimeWriter.writeLn('Running Memoizer: ' + mn.name);
            var axClass = applicationDomain.getClass(mn);
            release || assert(axClass, 'Class ' + mn + ' is not found.');
            release || assert(axClass.axConstruct);
            var loader = function () {
                return axClass.axConstruct(arguments);
            };
            loader.axIsType = function (value) {
                return axClass.axIsType(value);
            };
            loader.axClass = axClass;
            Object.defineProperty(container, classAlias, {
                value: loader,
                writable: false
            });
            return loader;
        },
        configurable: true
    });
}