Support for using the `ngModel` input property and `ngModelChange`
event with reactive form directives has been deprecated in
Angular v6 and will be removed in Angular v7.
Now deprecated:
```html
<input [formControl]="control" [(ngModel)]="value">
```
```ts
this.value = 'some value';
```
This has been deprecated for a few reasons. First, developers have
found this pattern confusing. It seems like the actual `ngModel`
directive is being used, but in fact it's an input/output property
named `ngModel` on the reactive form directive that simply approximates
(some of) its behavior. Specifically, it allows getting/setting the
value and intercepting value events. However, some of `ngModel`'s other
features - like delaying updates with`ngModelOptions` or exporting the
directive - simply don't work, which has understandably caused some
confusion.
In addition, this pattern mixes template-driven and reactive forms
strategies, which we generally don't recommend because it doesn't take
advantage of the full benefits of either strategy. Setting the value in
the template violates the template-agnostic principles behind reactive
forms, whereas adding a FormControl/FormGroup layer in the class removes
the convenience of defining forms in the template.
To update your code before v7, you'll want to decide whether to stick
with reactive form directives (and get/set values using reactive forms
patterns) or switch over to template-driven directives.
After (choice 1 - use reactive forms):
```html
<input [formControl]="control">
```
```ts
this.control.setValue('some value');
```
After (choice 2 - use template-driven forms):
```html
<input [(ngModel)]="value">
```
```ts
this.value = 'some value';
```
You can also choose to silence this warning by providing a config for
`ReactiveFormsModule` at import time:
```ts
imports: [
ReactiveFormsModule.withConfig({warnOnNgModelWithFormControl: 'never'});
]
```
Alternatively, you can choose to surface a separate warning for each
instance of this pattern with a config value of `"always"`. This may
help to track down where in the code the pattern is being used as the
code is being updated.
Note: `warnOnNgModelWithFormControl` is set up as deprecated so that it
can be removed in v7 when it is no longer needed. This will not display
properly in API docs yet because dgeni doesn't yet support deprecating
properties in object literals, but we have an open issue to resolve the
discrepancy here: https://github.com/angular/angular/issues/22640.
PR Close#22633
By providing a top level sanitization methods (rather than service) the
compiler can generate calls into the methods only when needed. This makes
the methods tree shakable.
PR Close#22540
This change brings Angular largely in line with how AngularJS previously serialized URLs. This is based on RFC 3986 and resolves issues such as the above #10280 where URLs could be parsed, re-serialized, then parsed again producing a different result on the second parsing.
Adjustments to be aware of in this commit:
* URI fragments will now serialize the same as query strings
* In the URI path or segments (portion prior to query string and/or fragment), the plus sign (`+`) and ampersand (`&`) will appear decoded
* In the URL path or segments, parentheses values (`(` and `)`) will now appear percent encoded as `%28` and `%29` respectively
* In the URL path or segments, semicolons will be encoded in their percent encoding `%3B`
NOTE: Parentheses and semicolons denoting auxillary routes or matrix params will still appear in their decoded form -- only parentheses and semicolons used as values in a segment or key/value pair for matrix params will be encoded.
While these changes are not considered breaking because applications should be decoding URLs and key/value pairs, it is possible that some unit tests will break if comparing hard-coded URLs in tests since that hard coded string will represent the old encoding. Therefore we are releasing this fix in the upcoming Angular v6 rather than adding it to a patch for v5.
Fixes: #10280
PR Close#22337
Previously the injectable compiler assumed all tree-shakeable injectables
would have dependencies that were injectables or InjectionTokens. However
old code still uses string tokens (e.g. NgUpgrade and '$injector'). Using
such tokens would cause the injectable compiler to crash.
Now, the injectable compiler can properly generate a dependency on such a
string token.
PR Close#22376
"ng update" supports having multiple packages as part of a group which should be updated together, meaning that e.g. calling "ng update @angular/core" would be equivalent to updating all packages of the group (that are part of the package.json already).
In order to support the grouping feature, the package.json of the version the user is updating to needs to include an "ng-update" key that points to this metadata.
The entire specification for the update workflow can be found here: 2e8b12a4ef/docs/specifications/update.md
PR Close#22482
inject() supports the ngInjectableDef-based configuration of the injector
(otherwise known as tree-shakeable services). It was missing from the
exported API of @angular/core, this PR adds it.
The test added here is correct in theory, but may pass accidentally due
to the decorator side-effect replacing the inject() call at runtime. An
upcoming compiler PR will strip reified decorators from the output
entirely.
Fixes#22388
PR Close#22389
Previously, when a downgraded component was destroyed in a way that did
not trigger the `$destroy` event on the element (e.g. when a parent
element was removed from the DOM by Angular, not AngularJS), the
`ComponentRef` was not destroyed and unregistered.
This commit fixes it by listening for the `$destroy` event on both the
element and the scope.
Fixes#22392
PR Close#22400
* Add correct mapping from camel case to kebab case for CSS style
names
* Remove internal CSS methods in favor of native Domino APIs
Fixes#19235
PR Close#22263
The function provided by `ngUpgrade` as `parentBoundTranscludeFn` when
upgrading a component with transclusion, will break in AngularJS v1.5.8+
if no transclusion content is provided. The reason is that AngularJS
will try to destroy the transclusion scope (which would not be needed
any more). But since the transcluded content comes from Angular, not
AngularJS, there is no transclusion scope to destroy.
This commit fixes it by providing a dummy scope object with a no-op
`$destroy()` method.
Fixes#22175
PR Close#22167
Previously, having a `=` binding on an upgraded components would result
in setting the corresponding property to an EventEmitter function. This
should only happen for `&` bindings.
This commit rstrores the correct behavior.
Note:
The issue was only present in the dynamic version of `ngUpgrade`. The
static version worked as expected.
The error did not show up in tests, because in AngularJS v1.5.x a
function would be serialized to an empty string in interpolations, thus
making them indistinguishable from uninitialized properties (in the
view). The serialization behavior changed in AngularJS v1.6.x, making
the errors visible.
PR Close#22167
`packages/upgrade/static/src` is anymlink to `packages/upgrade/src`.
Still, using the correct paths (e.g. using
`@angular/upgrade/static/src/...` for `@angula/upgrade/static` specs
ensures that the module loader (e.g. SystemJS) can map the imports to
the same instances.
PR Close#22167
The utility functions `formatNumber`, `formatPercent`, `formatCurrency`, and `formatDate` used by the number, percent, currency and date pipes are now available for developers who want to use them outside of templates.
Fixes#20536
PR Close#22423
Fixes: #10280
This change brings Angular largely in line with how AngularJS previously serialized URLs. This is based on [RFC 3986](http://tools.ietf.org/html/rfc3986) and resolves issues such as the above #10280 where URLs could be parsed, re-serialized, then parsed again producing a different result on the second parsing.
Adjustments to be aware of in this commit:
* Query strings will now serialize with decoded slash (`/`) and question mark (`?`)
* URI fragments will now serialize the same as query strings, but hash sign (`#`) will also appear decoded
* In the URI path or segments (portion prior to query string and/or fragment), the plus sign (`+`) and ampersand (`&`) will appear decoded
* In the URL path or segments, parentheses values (`(` and `)`) will now appear percent encoded as `%28` and `%29` respectively
* In the URL path or segments, semicolons will be encoded in their percent encoding `%3B`
NOTE: Parentheses and semicolons denoting auxillary routes or matrix params will still appear in their decoded form -- only parentheses and semicolons used as values in a segment or key/value pair for matrix params will be encoded.
While these changes are not considered breaking because applications should be decoding URLs and key/value pairs, it is possible that some unit tests will break if comparing hard-coded URLs in tests since that hard coded string will represent the old encoding. Therefore we are releasing this fix in the upcoming Angular v6 rather than adding it to a patch for v5.
PR Close#22337
This produces a directory following the Angular Package layout spec.
Includes integration test coverage by making a minimal ng_package in integration/bazel.
Unit tests verify the content of the @angular/core and @angular/common packages.
This doesn't totally match our current output, but is good enough to unblock some
early adopters.
It re-uses logic from the rollup_bundle rule in rules_nodejs. It should also
eventually have the .pack and .publish secondary targets like npm_package rule.
PR Close#22221
This patch removes the need to include the Web Animations API Polyfill
(web-animations-js) as a dependency. Angular will now fallback to using
CSS Keyframes in the event that `element.animate` is no longer supported
by the browser.
In the event that an application does use `AnimationBuilder` then the
web-animations-js polyfill is required to enable programmatic,
position-based access to an animation.
Closes#17496
PR Close#22143
closes#17958
BREAKING CHANGE:
- `AbstractControl#statusChanges` now emits an event of `'PENDING'` when you call `AbstractControl#markAsPending`
- Previously it did not emit an event when you called `markAsPending`
- To migrate you would need to ensure that if you are filtering or checking events from `statusChanges` that you account for the new event when calling `markAsPending`
PR Close#20212
This patch ensures that if the NoopAnimationsModule is used then it will
correctly report the associated `totalTime` property within the emitted
AnimationEvent instance when an animation event trigger is fired.
BREAKING CHANGE: When animation is trigged within a disabled zone, the
associated event (which an instance of AnimationEvent) will no longer
report the totalTime as 0 (it will emit the actual time of the
animation). To detect if an animation event is reporting a disabled
animation then the `event.disabled` property can be used instead.
PR Close#22225
InjectionToken can be created with an ngInjectableDef, and previously
this allowed the full expressiveness of @Injectable. However, this
requires a runtime reflection system in order to generate factories
from expressed provider declarations.
Instead, this change requires scoped InjectionTokens to provide the
factory directly (likely using inject() for the arguments), bypassing
the need for a reflection system.
Fixes#22205
PR Close#22207
@Injectable() supports a scope parameter which specifies the target module.
However, it's still difficult to specify that a particular service belongs
in the root injector. A developer attempting to ensure that must either
also provide a module intended for placement in the root injector or target
a module known to already be in the root injector (e.g. BrowserModule).
Both of these strategies are cumbersome and brittle.
Instead, this commit adds a token APP_ROOT_SCOPE which provides a
straightforward way of targeting the root injector directly, without
requiring special knowledge of modules within it.
PR Close#22185
The AsyncPipe type signature was changed to allow
deferred creation of promises and observalbes that
is supported by the implementation by allowing
`Promise<T>|null|undefined` and by allowing
`Observable<T>|null|undefined`.
PR Close#22169
This commit bundles 3 important changes, with the goal of enabling tree-shaking
of services which are never injected. Ordinarily, this tree-shaking is prevented
by the existence of a hard dependency on the service by the module in which it
is declared.
Firstly, @Injectable() is modified to accept a 'scope' parameter, which points
to an @NgModule(). This reverses the dependency edge, permitting the module to
not depend on the service which it "provides".
Secondly, the runtime is modified to understand the new relationship created
above. When a module receives a request to inject a token, and cannot find that
token in its list of providers, it will then look at the token for a special
ngInjectableDef field which indicates which module the token is scoped to. If
that module happens to be in the injector, it will behave as if the token
itself was in the injector to begin with.
Thirdly, the compiler is modified to read the @Injectable() metadata and to
generate the special ngInjectableDef field as part of TS compilation, using the
PartialModules system.
Additionally, this commit adds several unit and integration tests of various
flavors to test this change.
PR Close#22005
All of the providers in a module get compiled into a module definition in the
factory file. Some of these providers are for the actual module types, as those
are available for injection in Angular. For tree-shakeable tokens, the runtime
needs to be able to distinguish which modules are present in an injector.
This change adds a NodeFlag which tags those module providers for later
identification.
PR Close#22005
Same fix as e70d7a2a7c
This is because the CompilerOptions needs to have directoryExists undefined in order to get the google3 behavior,
so we have to set the property outside the constructor.
Fixes#21872
PR Close#21876
Modifies validation syntax to generate back references to ensure
that identifiers are used consistently.
Introduced … to allow validating constant definition and usage.
PR Close#21877
Includes:
* display ToC for API docs
* update dgeni-packages to 0.24.1
* add floating sidebar in API docs
* add breadcrumbs and structured data for Google crawler
* improved rendering of method overloads
* properties rendered in a table
* params rendered with docs
* removal of outdated "infobox" from all API docs
PR Close#21874
Both Firefox and Safari are vulnerable to XSS if we use an inert document
created via `document.implementation.createHTMLDocument()`.
Now we check for those vulnerabilities and then use a DOMParser or XHR
strategy if needed.
Further the platform-server has its own library for parsing HTML, so we
sniff for that (by checking whether DOMParser exists) and fall back to
the standard strategy.
Thanks to @cure53 for the heads up on this issue.
PR Close#17019
The `ng_module` rule now has a factories attribute that
allows explicit specification of which files are expected
to generate factories. This allows avoiding generating
empty factory files (such as `.ngfactory.js`) begin
generated which might cause down-stream tools issues if
they have a limit on the number of files that can be
processed in a single bazel action.
PR Close#22003
Previously, the emitEvent flag was only checked when emitting on the current control.
Thus, if the control was part of a hierarchy, events were emitted on the parent and the childrens.
This fixes the issue by properly passing the emitEvent flag to both parent and childrens.
Fixes#12366
PR Close#21018
This is a customization of the rollup_bundle rule from rules_nodejs
which adds the build-optimizer as a plugin.
Add a functional test with fast round-trip that asserts the minified app
still works.
Publish the min.js artifact on circleCI so we can track its size.
PR Close#22004
- Fix the case when first dynamic values are NO_CHANGE
- Do not store the static texts (even indexes) as bindings,
- Do not diff static texts (they do not change),
- Do not stringify static texts,
- Remove superfluous values walking.
PR Close#21881
By adding attributes on the <ng-content> element template authors
can decide how content should be re-projected (or, in other words:
which selectors should match re-projected content).
PR Close#21935
Service Workers can be tricky to work with in production, and often
it becomes necessary to deactivate an existing SW. This is trickier
than one might imagine - as long as clients on the old SW may exist
it is important to serve some script at the old SW URL. This commit
adds safety-worker.js to the published NPM package, which is useful
for that purpose. On install the SW unregisters itself which safely
and gradually allows older clients to update.
PR Close#21863
Previously, an interceptor attempting to inject HttpClient directly
would receive a circular dependency error, as HttpClient was
constructed via a factory which injected the interceptor instances.
Users want to inject HttpClient into interceptors to make supporting
requests (ex: to retrieve an authentication token). Currently this is
only possible by injecting the Injector and using it to resolve
HttpClient at request time.
Either HttpClient or the user has to deal specially with the circular
dependency. This change moves that responsibility into HttpClient
itself. By utilizing a new class HttpInterceptingHandler which lazily
loads the set of interceptors at request time, it's possible to inject
HttpClient directly into interceptors as construction of HttpClient no
longer requires the interceptor chain to be constructed.
Fixes#18224.
PR Close#19809
Currently, NavigationStart there is no way to know if an navigation was triggered imperatively or via the location change. These two use cases should be handled differently for a variety of use cases (e.g., scroll position restoration). This PR adds a navigation source field and restored navigation id (passed to navigations triggered by a URL change).
PR Close#21728
The 2.6 version of TypeScript's `resolveModuleName` started to
require paths passed to be separated by '/' instead of being
able to handle '\'.
`ngc` and `ng` already do this transformation.
Fixes: #21811
PR Close#21812
This is a more defensive approach to ensure that references to
ParamInheritanceType from the published declarations do not cause
compilation errors when compiling Angular from the published packages.
Fixes#21456
PR Close#21773
Currently, NavigationStart there is no way to know if an navigation was triggered imperatively or via the location change. These two use cases should be handled differently for a variety of use cases (e.g., scroll position restoration). This PR adds a navigation source field and restored navigation id (passed to navigations triggered by a URL change).
PR Close#21728
Currently, `shimCssText` only keep `/*# sourceMappingUrl ... */` comments and strip `/*# sourceURL ... */` comments. So, Chrome can't find the source maps for component style(that's created in new `style` tags)
PR Close#16088
Folding errors passed calls prevented the static reflector from
begin able to ignore errors in annotations it doesn't know as
the call to the unknown annotation was elided from the metadata.
Fixes: #21273
PR Close#21708
Implement NgOnChangesFeature, ViewContainerRef, TemplateRef,
and the renderEmbeddedTemplate instruction, and wire together the
pieces required for the ngForOf directive to work.
PR Close#21430
To prepare for pending ngForOf work, the dep from instructions -> query
should be broken. This will enable a dep from di -> instructions while
avoiding a di -> instructions -> query -> di cycle.
Analyzing this cycle also uncovered another problem: the implementation
of query() breaks tree-shaking through a hard dependency on DI concepts
of TemplateRef, ElementRef, ViewContainerRef. This is fundamentally due
to how query() can query for those values without any configuration.
Instead, this fix introduces the concept by employing the strategy
pattern, and redefining QueryReadType to pass a function which will
return one of the above values. This strategy is then used for 'read'
instead of an enum in cases where special values should be read from
the DI system.
PR Close#21430
assertLessThan() actually does the opposite of what it advertises.
It's only through luck that existing asserts have not failed
before. This changes assertLessThan to actually assert that the
value is less than something.
PR Close#21430
The "enableIvy" compiler option is the initial implementation
of the Render3 (or Ivy) code generation. This commit enables
generation generating "Hello, World" (example in the test)
but not much else. It is currenly only useful for internal Ivy
testing as Ivy is in development.
PR Close#21427
Adding the binding name to the error message recieved by the user gives
extra context on what exactly changed. The tests are also updated to
reflect the new error message.
PR Close#20352
- Improve `WrappedValue` by adding `unwrap` symetrical to `wrap`.
- remove dead code - `ValueUnwrapper`
The property `wrapped` is an implementation details and should never be accessed
directly - use `unwrap(wrappedValue)`. Will change to protected in Angular 7.
PR Close#20997
This commit fixes a bug whereby the caches are not cleared when the
program changes. This subsequently produces the incorrect error of
'Component ... is not included in a module ...'.
PR Close#19405
PR Close#21337
This change makes the code cleaner for the user. It does mean
a little bit more work for us since we have to patch the `type` back
into the `DirectiveDef`. However since the patching happens only once
on startup it should not be significant.
PR Close#21374
This separation is no longer needed since directives are now passed into the `container` as an array rather than as child functions of the `containerStart`
PR Close#21374
This change creates a spec file which contains canonical examples
of how the template compiler will translate templates into expected
output.
PR Close#21374
We used to have a separate `directive` instruction for instantiating
directives. However, such an instruction requires that directives
are created in the correct order, which would require that template
compiler would have knowledge of all dependent directives. This
would break template compilation locality principle.
This change only changes the APIs to expected form but does
not change the semantics. The semantics will need to be corrected
in subsequent commits. The semantic change needed is to
resolve the directive instantiation error at runtime based on
injection dependencies.
PR Close#21374
Cache reference resolution for external references as finding
the declaration of a symbol is expensive and does not change
for a program once created.
This resolves a signficant performance regression in the langauge
service.
PR Close#21359
This helps ensure we use the same tsconfig.json file for all compilations.
Next steps are to make it the same tsconfig.json file used by the editor
PR Close#20964
When the SW fetches URLs listed in a manifest with hashes, it checks
the content hash against the manifest to make sure it has the correct
version of the URL. In the event of a mismatch, the SW is supposed to
consider the manifest invalid, and avoid using it. There are 3 cases
to consider by which this can happen.
Case 1: during the initial SW installation, a manifest is activated
without waiting for every URL to be fully loaded. In the background,
every prefetch URL listed by the manifest is requested and cached.
One such prefetch request could fail the hash test, and cause the
manifest to be treated as invalid. In such a case, the SW should
enter a state of EXISTING_CLIENTS_ONLY, as the latest manifest is
invalid.
This case works today.
Case 2: during the initial SW installation, as in Case 1, a manifest
is activated without waiting for each URL to fully load. However,
it's possible that the application could request a URL with a bad
hash before background initialization tries to load that URL. This
happens if, for example, the application has a broken index.html.
In this case, the SW should enter a state of EXISTING_CLIENTS_ONLY,
and serve the request from the network instead.
What happens today is that the internal error escapes the SW and
is returned as a rejected Promise to respondWith(), causing a
browser-level error that the site cannot be loaded, breaking the
site.
This change allows the SW to detect the error and enter the correct
state, falling back on the network if needed.
Case 3: during checkForUpdate(), the SW will try to fully cache the
new update before making it the latest version. Failure here is
complicated - if the page fails to load due to transient network
conditions (timeouts, 500s, etc), then it makes sense to continue
serving the existing cached version, and attempt to activate the
update on the next cycle.
If the page fails due to non-transient conditions though (400 error,
hash mismatch, etc), then the SW should consider the updated
manifest invalid, and enter a state of EXISTING_CLIENTS_ONLY.
Currently, all errors are treated as transient.
This change causes the SW to treat all errors during updates as
non-transient, which can cause the SW to unnecessarily enter a
safe mode. A future change can allow the SW to remain in normal mode
if the error is provably transient.
PR Close#21288
Chrome 63 can cause the navigationStart event for the first
run to arrive with a different pid than the start of the
benchpress run. This makes the first collected result invalid.
This workaround causes the sampler to ignore runs that have this
condition.
PR Close#21396
Bazel runs on newer version of RxJs than is installed in Yarn. The never version subclasses `EmptyError` in a different way which fails the `instanceof` check. This change makes the `instanceof` check more robust with respect to `EmptyError`.
PR Close#21053
- Add tests target for `test`, `test_node_only` and `test_web` in `core` package.
- Created a `_testing_init` pseudo package where bootstrap code for tests is kept.
- Moved `source_map_util` from `test` to `testing` so to prevent circular dependency.
- Removed `visibility:public` for testing `BUILD` packages.
PR Close#21053
`main()` function used to be needed to support dart, since dart
Does not allow top level statements. Since we no longer use dart
The need for `main()` has been removed.
In preparation for `Basel` and standardized way of running tests
we are removing `main()`
PR Close#21053
This patch fixes animations so that if multiple sub @triggers are used
and are blocked by a parent animation then the engine will not lead
itself into an infinite loop.
PR Close#21119
This PR fixes a circular dependency among those files in Renderer3:
`query` -> `di` -> `instructions` -> `query` -> ...
Looking at the above dependencies the `di` -> `instructions` import is
a problematic one. Previously `di` had an import from `instructions`
since we can known about "current node" only in `instructions`
(and we need "current node" to create node injector instances).
This commit refactors the code in the way that functions in the
`di` file don't depend on any info stored module-global variables
in `instructions`.
PR Close#20855
Closure Compiler renames all properties that are "internal" to the
program. `DOMAnimation` however is external, it is a browser API, so its
fields must not be renamed.
This change marks `DOMAnimation` as external using `declare interface`,
which will cause Closure Compiler to back off and prevent renaming of
any of its fields.
PR Close#21125
Previously, the router would merge path and matrix params, as well as
data/resolve, with special rules (only merging down when the route has
an empty path, or is component-less). This change adds an extra option
"paramsInheritanceStrategy" which, when set to 'always', makes child
routes unconditionally inherit params from parent routes.
Closes#20572.
The compiler host would force any file that is in node_modules
into the list of files that needed to be type checked which
captures .js files if `allowJs` is set to `true`. This should
have only forced .d.ts files into the project to enable
generation of factories.
Fixes: #19757
This allows examples to be found during aio's `yarn serve-and-sync`, which only
looks for examples in `packages/examples/<packageName>/**/*`, where
`packageName` is the name of the package that the modified file belonged to;
e.g. `core`, `common`, etc.).
Allows a directive to use the expression passed directly to a property
as a guard instead of filtering the type through a type expression.
This more accurately matches the intent of the ngIf usage of its template
enabling better type inference.
Moved NgIf to using this type of guard instead of a function guard.
Closes: #20967
Currently the Service Worker checks for updates only on SW startup,
an event which happens frequently but also nondeterministically. This
makes it hard for developers to observe the update process or reason
about how updates will be delivered to users. This problem is
exacerbated by the DevTools behavior of keeping the SW alive
indefinitely while opened, effectively preventing the page from
updating at all.
This change causes the SW to additionally check for updates on
navigation requests (app page reloads). This creates deterministic
update behavior, and is much easier for developers to reason about.
It does leave the old update-on-SW-startup behavior in place, as
removing that would be a breaking change.
Fixes#20877
Closure Compiler cannot infer that the swtich statement is exhaustive,
which causes it to complain that the method does not always return a
value.
Work around the problem by throwing an exception in the default case,
and using the `: never` type to ensure the code is unreachable.
Due to an overly agressive assert the compiler would generate
an internal error when referencing an enum declared in
namspace.
Fixes#18170
PR Close#20947
Previously, this code would unconditionally add a @fileoverview
comment to generated files, and only if the contained any code at all.
However often existing fileoverview comments should be copied from the
file the generated file was originally based off of. This allows users
to e.g. include Closure Compiler directives in their original
`component.ts` file, which will then automaticallly also apply to code
generated from it.
This special cases `@license` comments, as Closure disregards directives
in comments containing `@license`.
PR Close#20870
Since our version of Chromium is also pinned, a new ChromeDriver (that
drops support for our Chromium version) can cause random (and unrelated
to the corresponding changes) errors on CI.
This commit pins the version of ChromeDriver and it should now be
manually upgraded to a vrsion that is compatible with th currently used
Chromium version.
PR Close#20940
`$any()` can now be used in a binding expression to disable type
checking for the rest of the expression. This similar to `as any` in
TypeScript and allows expression that work at runtime but do not
type-check.
PR Close#20876
Structural directives can now specify a type guard that describes
what types can be inferred for an input expression inside the
directive's template.
NgIf was modified to declare an input guard on ngIf.
After this change, `fullTemplateTypeCheck` will infer that
usage of `ngIf` expression inside it's template is truthy.
For example, if a component has a property `person?: Person`
and a template of `<div *ngIf="person"> {{person.name}} </div>`
the compiler will no longer report that `person` might be null or
undefined.
The template compiler will generate code similar to,
```
if (NgIf.ngIfTypeGuard(instance.person)) {
instance.person.name
}
```
to validate the template's use of the interpolation expression.
Calling the type guard in this fashion allows TypeScript to infer
that `person` is non-null.
Fixes: #19756?
PR Close#20702
Misko Hevery
Kara Erickson
Chuck Jazdzewski
Marc Laval
Olivier Combe
Alex Eagle
Alex Eagle
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Pawel Kozlowski
Suguru Inatomi
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Matias Niemelä
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adasilva
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Benjamin Ingberg
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chembu
Siyao Li
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