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refactor(common): Remove ngOnChanges from NgForOf (#23378)

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`NgForOf` used to implement `OnChanges` and than use
`ngOnChanges` callback to detect when `ngForOf` binding
changed to update the differ. We now do the checking
manually which puts less pressure on the runtime to do
the bookkeeping and should result in minor perf improvement.

PR Close #23378
This commit is contained in:
Miško Hevery
2018-04-13 17:11:21 -07:00
committed by Victor Berchet
parent 255463ed48
commit 08a18b82de
5 changed files with 16 additions and 28 deletions
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3
tools/public_api_guard/common/common.d.ts vendored
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@ -240,13 +240,12 @@ export declare class NgComponentOutlet implements OnChanges, OnDestroy {
ngOnDestroy(): void;
}
export declare class NgForOf<T> implements DoCheck, OnChanges {
export declare class NgForOf<T> implements DoCheck {
ngForOf: NgIterable<T>;
ngForTemplate: TemplateRef<NgForOfContext<T>>;
ngForTrackBy: TrackByFunction<T>;
constructor(_viewContainer: ViewContainerRef, _template: TemplateRef<NgForOfContext<T>>, _differs: IterableDiffers);
ngDoCheck(): void;
ngOnChanges(changes: SimpleChanges): void;
}
export declare class NgForOfContext<T> {