@angular/upgrade
Version:
Angular - the library for easing update from v1 to v2
43 lines • 6.1 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
// We have to do a little dance to get the ng1 injector into the module injector.
// We store the ng1 injector so that the provider in the module injector can access it
// Then we "get" the ng1 injector from the module injector, which triggers the provider to read
// the stored injector and release the reference to it.
let tempInjectorRef = null;
export function setTempInjectorRef(injector) {
tempInjectorRef = injector;
}
export function injectorFactory() {
if (!tempInjectorRef) {
throw new Error('Trying to get the AngularJS injector before it being set.');
}
const injector = tempInjectorRef;
tempInjectorRef = null; // clear the value to prevent memory leaks
return injector;
}
export function rootScopeFactory(i) {
return i.get('$rootScope');
}
export function compileFactory(i) {
return i.get('$compile');
}
export function parseFactory(i) {
return i.get('$parse');
}
export const angular1Providers = [
// We must use exported named functions for the ng2 factories to keep the compiler happy:
// > Metadata collected contains an error that will be reported at runtime:
// > Function calls are not supported.
// > Consider replacing the function or lambda with a reference to an exported function
{ provide: '$injector', useFactory: injectorFactory, deps: [] },
{ provide: '$rootScope', useFactory: rootScopeFactory, deps: ['$injector'] },
{ provide: '$compile', useFactory: compileFactory, deps: ['$injector'] },
{ provide: '$parse', useFactory: parseFactory, deps: ['$injector'] }
];
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