This removes top-level side effects from each of these files and drops the dependency on global `Zone`, instead allowing it to be provided to each patch as a parameter.
Most of these are pure mechanical transformations. A couple notable files which were somewhat unique:
* `async-test.ts`, `fake-async-test.ts`, and `wtf.ts` had unique IIFE usage and patch `Zone` itself. This removes the IIFE and exports the function instead.
* `jest.ts` and `jasmine.ts` have a unique `jest` global usage which needs to be declared.
PR Close#53443
Close#31684.
In some rxjs operator, such as `retryWhen`, rxjs internally will set
`Subscription._unsubscribe` method to null, and the current zone.js monkey patch
didn't handle this case correctly, even rxjs set _unsubscribe to null, zone.js
still return a function by finding the prototype chain.
This PR fix this issue and the following test will pass.
```
const errorGenerator = () => {
return throwError(new Error('error emit'));
};
const genericRetryStrategy = (finalizer: () => void) => (attempts: Observable<any>) =>
attempts.pipe(
mergeMap((error, i) => {
const retryAttempt = i + 1;
if (retryAttempt > 3) {
return throwError(error);
}
return timer(retryAttempt * 1);
}),
finalize(() => finalizer()));
errorGenerator()
.pipe(
retryWhen(genericRetryStrategy(() => {
expect(log.length).toBe(3);
done();
})),
catchError(error => of(error)))
.subscribe()
```
PR Close#37091
Close#31687, #31684
Zone.js patches rxjs internal `_subscribe` and `_unsubscribe` methods, but zone.js doesn't do null check, so in some operator such as `retryWhen`, the `_unsubscribe` will be set to null, and will cause
zone patched version throw error.
In this PR, if `_subscribe` and `_unsubscribe` is null, will not do the patch.
PR Close#35990
Joey Perrott