Ben Lesh d7eaae6f22 refactor(ivy): Move instructions back to ɵɵ (#30546)
There is an encoding issue with using delta `Δ`, where the browser will attempt to detect the file encoding if the character set is not explicitly declared on a `<script/>` tag, and Chrome will find the `Δ` character and decide it is window-1252 encoding, which misinterprets the `Δ` character to be some other character that is not a valid JS identifier character

So back to the frog eyes we go.

```
    __
   /ɵɵ\
  ( -- ) - I am ineffable. I am forever.
 _/    \_
/  \  /  \
==  ==  ==
```

PR Close #30546
2019-05-20 16:37:47 -07:00

56 lines
2.4 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {Type} from '../interface/type';
import {ReflectionCapabilities} from '../reflection/reflection_capabilities';
import {getClosureSafeProperty} from '../util/property';
import {injectArgs, ɵɵinject} from './injector_compatibility';
import {ClassSansProvider, ConstructorSansProvider, ExistingSansProvider, FactorySansProvider, StaticClassSansProvider, ValueProvider, ValueSansProvider} from './interface/provider';
const USE_VALUE =
getClosureSafeProperty<ValueProvider>({provide: String, useValue: getClosureSafeProperty});
const EMPTY_ARRAY: any[] = [];
export function convertInjectableProviderToFactory(
type: Type<any>, provider?: ValueSansProvider | ExistingSansProvider | StaticClassSansProvider |
ConstructorSansProvider | FactorySansProvider | ClassSansProvider): () => any {
if (!provider) {
const reflectionCapabilities = new ReflectionCapabilities();
const deps = reflectionCapabilities.parameters(type);
// TODO - convert to flags.
return () => new type(...injectArgs(deps as any[]));
}
if (USE_VALUE in provider) {
const valueProvider = (provider as ValueSansProvider);
return () => valueProvider.useValue;
} else if ((provider as ExistingSansProvider).useExisting) {
const existingProvider = (provider as ExistingSansProvider);
return () => ɵɵinject(existingProvider.useExisting);
} else if ((provider as FactorySansProvider).useFactory) {
const factoryProvider = (provider as FactorySansProvider);
return () => factoryProvider.useFactory(...injectArgs(factoryProvider.deps || EMPTY_ARRAY));
} else if ((provider as StaticClassSansProvider | ClassSansProvider).useClass) {
const classProvider = (provider as StaticClassSansProvider | ClassSansProvider);
let deps = (provider as StaticClassSansProvider).deps;
if (!deps) {
const reflectionCapabilities = new ReflectionCapabilities();
deps = reflectionCapabilities.parameters(type);
}
return () => new classProvider.useClass(...injectArgs(deps));
} else {
let deps = (provider as ConstructorSansProvider).deps;
if (!deps) {
const reflectionCapabilities = new ReflectionCapabilities();
deps = reflectionCapabilities.parameters(type);
}
return () => new type(...injectArgs(deps !));
}
}