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- function define(moduleName, deps, payload) {
- if (typeof moduleName != "string") {
- throw new TypeError('Expected string, got: ' + moduleName);
- }
- if (arguments.length == 2) {
- payload = deps;
- }
- if (moduleName in define.modules) {
- throw new Error("Module already defined: " + moduleName);
- }
- define.modules[moduleName] = payload;
- };
- define.modules = {};
- function Domain() {
- this.modules = {};
- this._currentModule = null;
- }
- (function () {
-
- Domain.prototype.require = function(deps, callback) {
- if (Array.isArray(deps)) {
- var params = deps.map(function(dep) {
- return this.lookup(dep);
- }, this);
- if (callback) {
- callback.apply(null, params);
- }
- return undefined;
- }
- else {
- return this.lookup(deps);
- }
- };
- function normalize(path) {
- var bits = path.split('/');
- var i = 1;
- while (i < bits.length) {
- if (bits[i] === '..') {
- bits.splice(i-1, 1);
- } else if (bits[i] === '.') {
- bits.splice(i, 1);
- } else {
- i++;
- }
- }
- return bits.join('/');
- }
- function join(a, b) {
- a = a.trim();
- b = b.trim();
- if (/^\//.test(b)) {
- return b;
- } else {
- return a.replace(/\/*$/, '/') + b;
- }
- }
- function dirname(path) {
- var bits = path.split('/');
- bits.pop();
- return bits.join('/');
- }
-
- Domain.prototype.lookup = function(moduleName) {
- if (/^\./.test(moduleName)) {
- moduleName = normalize(join(dirname(this._currentModule), moduleName));
- }
- if (moduleName in this.modules) {
- var module = this.modules[moduleName];
- return module;
- }
- if (!(moduleName in define.modules)) {
- throw new Error("Module not defined: " + moduleName);
- }
- var module = define.modules[moduleName];
- if (typeof module == "function") {
- var exports = {};
- var previousModule = this._currentModule;
- this._currentModule = moduleName;
- module(this.require.bind(this), exports, { id: moduleName, uri: "" });
- this._currentModule = previousModule;
- module = exports;
- }
-
- this.modules[moduleName] = module;
- return module;
- };
- }());
- define.Domain = Domain;
- define.globalDomain = new Domain();
- var require = define.globalDomain.require.bind(define.globalDomain);
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