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API > @angular/core

ANALYZE_FOR_ENTRY_COMPONENTS

This token can be used to create a virtual provider that will populate the entryComponents fields of components and ng modules based on its useValue. All components that are referenced in the useValue value (either directly or in a nested array or map) will be added to the entryComponents property.

      
      const ANALYZE_FOR_ENTRY_COMPONENTS: InjectionToken<any>;

使用说明

Example

The following example shows how the router can populate the entryComponents field of an NgModule based on the router configuration which refers to components.

// helper function inside the router function provideRoutes(routes) { return [ {provide: ROUTES, useValue: routes}, {provide: ANALYZE_FOR_ENTRY_COMPONENTS, useValue: routes, multi: true} ]; } // user code let routes = [ {path: '/root', component: RootComp}, {path: '/teams', component: TeamsComp} ]; @NgModule({ providers: [provideRoutes(routes)] }) class ModuleWithRoutes {}
      
      
  1. // helper function inside the router
  2. function provideRoutes(routes) {
  3.   return [
  4.     {provide: ROUTES, useValue: routes},
  5.     {provide: ANALYZE_FOR_ENTRY_COMPONENTS, useValue: routes, multi: true}
  6.   ];
  7. }
  8.  
  9. // user code
  10. let routes = [
  11.   {path: '/root', component: RootComp},
  12.   {path: '/teams', component: TeamsComp}
  13. ];
  14.  
  15. @NgModule({
  16.   providers: [provideRoutes(routes)]
  17. })
  18. class ModuleWithRoutes {}