Standalone migration omits top level component import when pruning NgModules #63945
Description
Which @angular/* package(s) are the source of the bug?
core
Is this a regression?
No
Description
When the migration prunes NgModules, the imports are removed e.g.
This component:
import { Component } from '@angular/core';
import { OtherModule } from './other';
@Component({
selector: 'my-comp',
template: '<other-modules-component />',
imports: [OtherModule]
})
export class MyComponent {}
Is incorrectly transformed to this: (import { OtherComponent } from './other'; is missing)
import { Component } from '@angular/core';
@Component({
selector: 'my-comp',
template: '<other-modules-component />',
imports: [OtherComponent]
})
export class MyComponent {}
Here's a minimal test case that fails in packages/core/schematics/test/standalone_migration_spec.ts:
it('should convert NgModule imports to component imports', async () => {
writeFile(
'comp.ts',
`
import { Component } from '@angular/core';
import { OtherModule } from './other';
@Component({
selector: 'my-comp',
template: '<other />',
imports: [OtherModule]
})
export class MyComponent {}
`,
);
writeFile(
'other.ts',
`
import { Component, NgModule } from '@angular/core';
@Component({
selector: 'other',
template: 'other'
})
export class OtherComponent {}
@NgModule({
imports: [OtherComponent],
exports: [OtherComponent]
})
export class OtherModule {}
`,
);
await runMigration('prune-ng-modules');
expect(stripWhitespace(tree.readContent('comp.ts'))).toBe(
stripWhitespace(`
import { Component } from '@angular/core';
import { OtherComponent } from './other';
@Component({
selector: 'my-comp',
template: '<other />',
imports: [OtherComponent]
})
export class MyComponent {}
`),
);
});
Please provide a link to a minimal reproduction of the bug
No response
Please provide the exception or error you saw
Please provide the environment you discovered this bug in (run ng version)
Angular CLI: 20.3.2
Node: 22.14.0
Package Manager: npm 10.9.2
OS: darwin arm64
Angular: 20.3.1
... common, compiler, compiler-cli, core, forms
... platform-browser, router
Package Version
------------------------------------
@angular-devkit/architect 0.2003.2
@angular-devkit/core 20.3.2
@angular-devkit/schematics 20.3.2
@angular/build 20.3.2
@angular/cli 20.3.2
@schematics/angular 20.3.2
rxjs 7.8.2
typescript 5.9.2
zone.js 0.15.1
Anything else?
No response