Library compilation fails with compiler-cli v12.2.7 #43624
Description
Which @angular/* package(s) are the source of the bug?
compiler-cli
Is this a regression?
Yes
Description
Some changes in v12.2.7 of compiler-cli (type-checker fix from PR #43511, I believe), make my library compilation fail with the "Unable to write a reference to <SomeTypeName>" error.
The error occurs during compilation time and only if there is at least one usage of some component with type parameters, from another library, exists. Those type parameters are custom ones — not the built-in TS types, which seem to work fine.
Rolling back compiler-cli package to v12.2.6 makes compilation to work again.
Example:
- my-lib1
export type MyValue<T, K extends keyof T = keyof T> = T | T[K];
export type MyValueArray<T> = T | T[];
@Component({
selector: 'my-comp',
template: `
{{ value }}
`,
})
export class MyComponent<T = any, V extends MyValue<T> = any> {
@Input() data: T[];
@Input() value: V;
}
- my-lib2
@Component({
selector: 'some-comp',
template: `
<my-comp [data]="[]" [value]="null"></my-comp>
`,
})
export class SomeComponent {
// empty
}
Then compilation of my-lib2 fails with the message:
Unable to write a reference to MyValue in my-lib1/.../my-component.d.ts from my-lib/.../some-component.ngtypecheck.ts.
Please provide a link to a minimal reproduction of the bug
https://github.com/amariq/angular-pr43511-bug
Please provide the exception or error you saw
✖ Compiling with Angular sources in Ivy partial compilation mode.
Unable to write a reference to <SomeInterface> in <some-lib>/.../<some-component>.d.ts from <my-lib>/.../<my-component>.ngtypecheck.ts
Please provide the environment you discovered this bug in
Angular CLI: 12.2.7
Node: 16.10.0
Package Manager: 7.24.1
OS: Windows 10 x64
Angular: 12.2.7
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Ivy: "partial"
Package Version
---------------------------------------------------------
@angular-devkit/build-angular 12.2.7
@angular/animations 12.2.7
@angular/cli 12.2.7
@angular/common 12.2.7
@angular/compiler-cli 12.2.7
@angular/compiler 12.2.7
@angular/core 12.2.7
@angular/forms 12.2.7
@angular/platform-browser-dynamic 12.2.7
@angular/platform-browser 12.2.7
@angular/router 12.2.7
ng-packagr 12.2.2
rxjs 6.6.7
tslib 2.3.1
typescript 4.3.5
zone.js 0.11.4
Anything else?
No response