Prior to this change, the `BINDING_INDEX` of a given lView was reset after processing a template. However change detection can be triggered as a result of View queries processing, thus leading to subsequent `refreshView` call (and executing a template), which in turn operates with the binding index that is not reset after the previous `refreshView` call. This commit updates the logic to reset binding index before we execute a template, so binding index is correct for instructions inside template function.
PR Close#32201
This commit drops our custom, change-detection specific, equality comparison util
in favour of the standard Object.is which has desired semantics.
There are multiple advantages of this approach:
- less code to maintain on our end;
- avoid NaN checks if both values are equal;
- re-write NaN checks so we don't trigger V8 deoptimizations.
PR Close#32212
Angular hooks come after 2 flavours:
- init hooks (OnInit, AfterContentInit, AfterViewInit);
- check hooks (OnChanges, DoChanges, AfterContentChecked, AfterViewChecked).
We need to do more processing for init hooks to ensure that those hooks
are run once and only once for a given directive (even in case of errors).
As soon as all init hooks execute to completion we are only left with the
checks to execute.
It turns out that keeping track of the remaining init hooks to execute is
rather expensive (multiple LView flags reads, writes and checks). But we can
observe that non of this tracking is needed as soon as all init hooks are
completed.
This PR takes advantage of the above observations and splits hooks processing
functions into:
- init-specific (slower but less common);
- check-specific (faster and more common).
NOTE: there is code duplication in this PR and it is left like this intentinally:
hand-inlining this perf-critical code makes the view refresh process substentially
faster.
PR Close#32131
TypeScript downlevels `for-of` loops for ES5 targets. As a result, generated output contains extra code, including a try-catch block, which has code size and performance implications. This is especially important for runtime code where we want to keep it as small as possible. This commit changes `for-of` loops in runtime code to regular `for` loops.
PR Close#32157
In VE the `Sanitizer` is always available in `BrowserModule` because the VE retrieves it using injection.
In Ivy the injection is optional and we have instructions instead of component definition arrays. The implication of this is that in Ivy the instructions can pull in the sanitizer only when they are working with a property which is known to be unsafe. Because the Injection is optional this works even if no Sanitizer is present. So in Ivy we first use the sanitizer which is pulled in by the instruction, unless one is available through the `Injector` then we use that one instead.
This PR does few things:
1) It makes `Sanitizer` optional in Ivy.
2) It makes `DomSanitizer` tree shakable.
3) It aligns the semantics of Ivy `Sanitizer` with that of the Ivy sanitization rules.
4) It refactors `DomSanitizer` to use same functions as Ivy sanitization for consistency.
PR Close#31934
In Angular today, the following pattern works:
```typescript
export class BaseDir {
constructor(@Inject(ViewContainerRef) protected vcr: ViewContainerRef) {}
}
@Directive({
selector: '[child]',
})
export class ChildDir extends BaseDir {
// constructor inherited from BaseDir
}
```
A decorated child class can inherit a constructor from an undecorated base
class, so long as the base class has metadata of its own (for JIT mode).
This pattern works regardless of metadata in AOT.
In Angular Ivy, this pattern does not work: without the @Directive
annotation identifying the base class as a directive, information about its
constructor parameters will not be captured by the Ivy compiler. This is a
result of Ivy's locality principle, which is the basis behind a number of
compilation optimizations.
As a solution, @Directive() without a selector will be interpreted as a
"directive base class" annotation. Such a directive cannot be declared in an
NgModule, but can be inherited from. To implement this, a few changes are
made to the ngc compiler:
* the error for a selector-less directive is now generated when an NgModule
declaring it is processed, not when the directive itself is processed.
* selector-less directives are not tracked along with other directives in
the compiler, preventing other errors (like their absence in an NgModule)
from being generated from them.
PR Close#31379
In Angular today, the following pattern works:
```typescript
export class BaseDir {
constructor(@Inject(ViewContainerRef) protected vcr: ViewContainerRef) {}
}
@Directive({
selector: '[child]',
})
export class ChildDir extends BaseDir {
// constructor inherited from BaseDir
}
```
A decorated child class can inherit a constructor from an undecorated base
class, so long as the base class has metadata of its own (for JIT mode).
This pattern works regardless of metadata in AOT.
In Angular Ivy, this pattern does not work: without the @Directive
annotation identifying the base class as a directive, information about its
constructor parameters will not be captured by the Ivy compiler. This is a
result of Ivy's locality principle, which is the basis behind a number of
compilation optimizations.
As a solution, @Directive() without a selector will be interpreted as a
"directive base class" annotation. Such a directive cannot be declared in an
NgModule, but can be inherited from. To implement this, a few changes are
made to the ngc compiler:
* the error for a selector-less directive is now generated when an NgModule
declaring it is processed, not when the directive itself is processed.
* selector-less directives are not tracked along with other directives in
the compiler, preventing other errors (like their absence in an NgModule)
from being generated from them.
PR Close#31379
Fixes Ivy's directive matching not capturing attribute selectors when there is one class binding, one style binding and a regular binding that precede the attribute that would match the directive. The issue appears to come from the fact that we weren't skipping over style bindings correctly which was throwing the loop off not to go into `bindingsMode` and to skip some of the bindings when matching.
PR Close#31942
Fixes Ivy's `DebugElement.triggerEventHandler` to picking up events that have been registered through a `Renderer2`, unlike ViewEngine.
This PR resolves FW-1480.
PR Close#31845
Prior to this commit, the `schemas` configuration was applied to top-level view only. That leads to problems when using unknown props with elements inside nested views (for example generated as a result of *ngIf). This commit passes `schemas` information down to nested views to make sure that all the checks are consistent.
PR Close#31913
Currently the `DebugElement.listeners` array are retained after the node is destroyed. This means that they'll continue to fire through `triggerEventHandler` and can cause memory leaks. This has already been fixed in Ivy, but these changes fix it in ViewEngine for consistency.
PR Close#31820
In `BrowserModule` the value of `LOCALE_ID` is defined in the `APPLICATION_MODULE_PROVIDERS` after `APP_INITIALIZER` has run.
This PR ensures that `LOCALE_ID` is also set for ivy at the same moment which allows the application to fetch the locale from a backend (for example).
Fixes#31465
FW-1436 #resolve
PR Close#31566
Fixes Ivy throwing an error when something is passed in as a `forwardRef` into `@Injectable`'s `useClass` option. The error was being thrown, because we were trying to get the provider factory off of the wrapper function, rather than the value itself.
This PR resolves FW-1335.
PR Close#30532
