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