117 lines
3.0 KiB
JavaScript
117 lines
3.0 KiB
JavaScript
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// SystemJS Loader Class and Extension helpers
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function SystemJSLoader() {
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SystemLoader.call(this);
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systemJSConstructor.call(this);
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}
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// inline Object.create-style class extension
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function SystemProto() {};
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SystemProto.prototype = SystemLoader.prototype;
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SystemJSLoader.prototype = new SystemProto();
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SystemJSLoader.prototype.constructor = SystemJSLoader;
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// remove ESML instantiate
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SystemJSLoader.prototype.instantiate = function() {};
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var systemJSConstructor;
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function hook(name, hook) {
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SystemJSLoader.prototype[name] = hook(SystemJSLoader.prototype[name] || function() {});
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}
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function hookConstructor(hook) {
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systemJSConstructor = hook(systemJSConstructor || function() {});
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}
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function dedupe(deps) {
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var newDeps = [];
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for (var i = 0, l = deps.length; i < l; i++)
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if (indexOf.call(newDeps, deps[i]) == -1)
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newDeps.push(deps[i])
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return newDeps;
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}
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function group(deps) {
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var names = [];
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var indices = [];
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for (var i = 0, l = deps.length; i < l; i++) {
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var index = indexOf.call(names, deps[i]);
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if (index === -1) {
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names.push(deps[i]);
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indices.push([i]);
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}
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else {
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indices[index].push(i);
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}
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}
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return { names: names, indices: indices };
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}
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var getOwnPropertyDescriptor = true;
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try {
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Object.getOwnPropertyDescriptor({ a: 0 }, 'a');
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}
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catch(e) {
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getOwnPropertyDescriptor = false;
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}
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// converts any module.exports object into an object ready for SystemJS.newModule
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function getESModule(exports) {
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var esModule = {};
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// don't trigger getters/setters in environments that support them
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if (typeof exports == 'object' || typeof exports == 'function') {
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if (getOwnPropertyDescriptor) {
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var d;
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for (var p in exports)
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if (d = Object.getOwnPropertyDescriptor(exports, p))
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defineProperty(esModule, p, d);
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}
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else {
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var hasOwnProperty = exports && exports.hasOwnProperty;
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for (var p in exports) {
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if (!hasOwnProperty || exports.hasOwnProperty(p))
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esModule[p] = exports[p];
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}
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}
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}
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esModule['default'] = exports;
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defineProperty(esModule, '__useDefault', {
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value: true
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});
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return esModule;
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}
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function extend(a, b, prepend) {
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for (var p in b) {
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if (!prepend || !(p in a))
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a[p] = b[p];
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}
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return a;
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}
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// package configuration options
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var packageProperties = ['main', 'format', 'defaultExtension', 'meta', 'map', 'basePath', 'depCache'];
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// meta first-level extends where:
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// array + array appends
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// object + object extends
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// other properties replace
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function extendMeta(a, b, prepend) {
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for (var p in b) {
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var val = b[p];
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if (!(p in a))
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a[p] = val;
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else if (val instanceof Array && a[p] instanceof Array)
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a[p] = [].concat(prepend ? val : a[p]).concat(prepend ? a[p] : val);
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else if (typeof val == 'object' && val !== null && typeof a[p] == 'object')
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a[p] = extend(extend({}, a[p]), val, prepend);
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else if (!prepend)
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a[p] = val;
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}
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}
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function warn(msg) {
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if (this.warnings && typeof console != 'undefined' && console.warn)
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console.warn(msg);
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}
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