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fix(ivy): allow abstract directives to have an invalid constructor (#32987)

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For abstract directives, i.e. directives without a selector, it may
happen that their constructor is called explicitly from a subclass,
hence its parameters are not required to be valid for Angular's DI
purposes. Prior to this commit however, having an abstract directive
with a constructor that has parameters that are not eligible for
Angular's DI would produce a compilation error.

A similar scenario may occur for `@Injectable`s, where an explicit
`use*` definition allows for the constructor to be irrelevant. For
example, the situation where `useFactory` is specified allows for the
constructor to be called explicitly with any value, so its constructor
parameters are not required to be valid. For `@Injectable`s this is
handled by generating a DI factory function that throws.

This commit implements the same solution for abstract directives, such
that a compilation error is avoided while still producing an error at
runtime if the type is instantiated implicitly by Angular's DI
mechanism.

Fixes #32981

PR Close #32987
This commit is contained in:
JoostK
2019-10-03 21:54:49 +02:00
committed by Andrew Kushnir
parent e4e8dbdee0
commit 8d15bfa6ee
28 changed files with 307 additions and 117 deletions
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18
packages/core/src/di/jit/injectable.ts
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@ -48,15 +48,15 @@ export function compileInjectable(type: Type<any>, srcMeta?: Injectable): void {
get: () => {
if (ngFactoryDef === null) {
const metadata = getInjectableMetadata(type, srcMeta);
ngFactoryDef =
getCompilerFacade().compileFactory(angularCoreDiEnv, `ng:///${type.name}/ɵfac.js`, {
name: metadata.name,
type: metadata.type,
typeArgumentCount: metadata.typeArgumentCount,
deps: reflectDependencies(type),
injectFn: 'inject',
isPipe: false
});
const compiler = getCompilerFacade();
ngFactoryDef = compiler.compileFactory(angularCoreDiEnv, `ng:///${type.name}/ɵfac.js`, {
name: metadata.name,
type: metadata.type,
typeArgumentCount: metadata.typeArgumentCount,
deps: reflectDependencies(type),
injectFn: 'inject',
target: compiler.R3FactoryTarget.Pipe
});
}
return ngFactoryDef;
},