68 lines
4.5 KiB
JavaScript
68 lines
4.5 KiB
JavaScript
"use strict";
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require("typings-global");
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const path = require("path");
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const q = require("q");
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const lik_1 = require("lik");
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class Smartsystem {
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constructor() {
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this.lazyModules = new lik_1.Objectmap();
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}
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/**
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* add lazyModule to Smartsystem
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*/
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addLazyModule(lazyModuleArg) {
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this.lazyModules.add(lazyModuleArg);
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}
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}
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// create the internal smartsystem
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let smartsystem = new Smartsystem();
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class LazyModule {
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constructor(nameArg, cwdArg) {
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this.loader = 'npm';
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if (!cwdArg) {
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throw new Error('You must specify a directory to resolve from!');
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}
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this.name = nameArg;
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this.cwd = cwdArg;
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smartsystem.addLazyModule(this); // add module to smartsystem instance
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this.nameIsPath = /\.\//.test(this.name); // figure out if name is path
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if (this.nameIsPath) {
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this.name = path.join(this.cwd, this.name);
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}
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this.whenLoadedDeferred = q.defer();
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this.whenLoaded = this.whenLoadedDeferred.promise;
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}
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setLoader(loaderArg) {
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this.loader = loaderArg;
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}
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/**
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* loads the module
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*/
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load() {
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let done = q.defer();
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let loadedModule;
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if (this.loader === 'npm') {
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loadedModule = require(this.name);
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done.resolve(loadedModule);
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}
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else if (this.loader === 'systemjs') {
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let systemjs = require('systemjs');
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systemjs.import(this.name).then((m) => {
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loadedModule = m;
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this.whenLoadedDeferred.resolve(loadedModule);
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done.resolve(loadedModule);
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}).catch(err => { console.log(err); });
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}
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else {
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throw Error('loader not supported');
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}
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return done.promise;
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}
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/**
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* loads additional lazy modules specified as arguments and returns them in the promise for easy use
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*/
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loadAlso(...args) {
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}
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}
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exports.LazyModule = LazyModule;
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