74 lines
2.2 KiB
JavaScript
74 lines
2.2 KiB
JavaScript
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/*
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System bundles
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Allows a bundle module to be specified which will be dynamically
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loaded before trying to load a given module.
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For example:
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SystemJS.bundles['mybundle'] = ['jquery', 'bootstrap/js/bootstrap']
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Will result in a load to "mybundle" whenever a load to "jquery"
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or "bootstrap/js/bootstrap" is made.
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In this way, the bundle becomes the request that provides the module
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*/
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(function() {
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// bundles support (just like RequireJS)
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// bundle name is module name of bundle itself
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// bundle is array of modules defined by the bundle
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// when a module in the bundle is requested, the bundle is loaded instead
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// of the form SystemJS.bundles['mybundle'] = ['jquery', 'bootstrap/js/bootstrap']
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hookConstructor(function(constructor) {
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return function() {
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constructor.call(this);
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this.bundles = {};
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this._loader.loadedBundles = {};
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};
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});
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// assign bundle metadata for bundle loads
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hook('locate', function(locate) {
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return function(load) {
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var loader = this;
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var matched = false;
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if (!(load.name in loader.defined))
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for (var b in loader.bundles) {
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for (var i = 0; i < loader.bundles[b].length; i++) {
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var curModule = loader.bundles[b][i];
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if (curModule == load.name) {
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matched = true;
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break;
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}
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// wildcard in bundles does not include / boundaries
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if (curModule.indexOf('*') != -1) {
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var parts = curModule.split('*');
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if (parts.length != 2) {
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loader.bundles[b].splice(i--, 1);
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continue;
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}
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if (load.name.substring(0, parts[0].length) == parts[0] &&
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load.name.substr(load.name.length - parts[1].length, parts[1].length) == parts[1] &&
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load.name.substr(parts[0].length, load.name.length - parts[1].length - parts[0].length).indexOf('/') == -1) {
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matched = true;
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break;
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}
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}
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}
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if (matched)
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return loader['import'](b)
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.then(function() {
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return locate.call(loader, load);
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});
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}
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return locate.call(loader, load);
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};
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});
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})();
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