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fix(compiler-cli): remove classes in .d.ts files from provider checks (#40118) 

This commit temporarily excludes classes declared in .d.ts files from checks
regarding whether providers are actually injectable.

Such classes used to be ignored (on accident) because the
`TypeScriptReflectionHost.getConstructorParameters()` method did not return
constructor parameters from d.ts files, mostly as an oversight. This was
recently fixed, but caused more providers to be exposed to this check, which
created a breakage in g3.

This commit temporarily fixes the breakage by continuing to exclude such
providers from the check, until g3 can be patched.

PR Close #40118
This commit is contained in:
Alex Rickabaugh 2020-12-14 14:10:18 -08:00
parent 2a7443117b
commit 973bb403a5
2 changed files with 21 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
packages/compiler-cli/src/ngtsc/annotations/src/util.ts
View File

@ -516,7 +516,13 @@ export function resolveProvidersRequiringFactory(
}
}
if (tokenClass !== null && reflector.isClass(tokenClass.node)) {
// TODO(alxhub): there was a bug where `getConstructorParameters` would return `null` for a
// class in a .d.ts file, always, even if the class had a constructor. This was fixed for
// `getConstructorParameters`, but that fix causes more classes to be recognized here as needing
// provider checks, which is a breaking change in g3. Avoid this breakage for now by skipping
// classes from .d.ts files here directly, until g3 can be cleaned up.
if (tokenClass !== null && !tokenClass.node.getSourceFile().isDeclarationFile &&
reflector.isClass(tokenClass.node)) {
const constructorParameters = reflector.getConstructorParameters(tokenClass.node);
// Note that we only want to capture providers with a non-trivial constructor,

24
packages/compiler-cli/test/ngtsc/ngtsc_spec.ts
View File

@ -7493,16 +7493,20 @@ export const Foo = Foo__PRE_R3__;
expect(diags.length).toBe(0);
});
it('should error when an undecorated class with a non-trivial constructor in a declaration file is provided via useClass',
() => {
env.write('node_modules/@angular/core/testing/index.d.ts', `
// TODO(alxhub): this test never worked correctly, as it used to declare a constructor with a
// body, which real declaration files don't have. Without the body, the ReflectionHost used to
// not return any constructor data, preventing an error from showing. That bug was fixed, but
// the error for declaration files is disabled until g3 can be updated.
xit('should error when an undecorated class with a non-trivial constructor in a declaration file is provided via useClass',
() => {
env.write('node_modules/@angular/core/testing/index.d.ts', `
export declare class NgZone {}
export declare class Testability {
constructor(ngZone: NgZone) {}
constructor(ngZone: NgZone);
}
`);
env.write('test.ts', `
env.write('test.ts', `
import {NgModule, Injectable} from '@angular/core';
import {Testability} from '@angular/core/testing';
@ -7515,10 +7519,10 @@ export const Foo = Foo__PRE_R3__;
export class SomeModule {}
`);
const diags = env.driveDiagnostics();
expect(diags.length).toBe(1);
expect(diags[0].messageText).toContain('cannot be created via dependency injection');
});
const diags = env.driveDiagnostics();
expect(diags.length).toBe(1);
expect(diags[0].messageText).toContain('cannot be created via dependency injection');
});
it('should not error when an class with a factory definition and a non-trivial constructor in a declaration file is provided via useClass',
() => {
@ -7529,7 +7533,7 @@ export const Foo = Foo__PRE_R3__;
export declare class Testability {
static ɵfac: i0.ɵɵFactoryDef<Testability, never>;
constructor(ngZone: NgZone) {}
constructor(ngZone: NgZone);
}
`);
env.write('test.ts', `