Currently when the signal debug name transform sees something like `const foo = signal(0);`, it transforms the signal into `signal(0, {...(ngDevMode ? { debugName: 'foo' } : {})})`. After minification this becomes `signal(0, {})` which will allocate memory for the empty object literal.
These changes rework the logic to produce `signal(0, ...(ngDevMode ? [{ debugName: 'foo' }] : []))` which will be fully tree shaken away to `signal(0)`.
This is necessary to exclude a race condition where the MutationObserver initialized by the instruction fired before the inputs are binded.
fixes#65678
Improves the symbol linking logic to handle Angular component selectors (e.g., ngCombobox). It attempts to convert Angular selector patterns to their corresponding class names, improving navigation to Angular API documentation.
This commit implements a security fix to prevent XSS vulnerabilities where SVG animation elements (`<animate>`, `<set>`, etc.) could be used to modify the `href` or `xlink:href` attributes of other elements to `javascript:` URLs.
Escape @-prefixed template control flow constructs during doc extraction so JSDoc parsing keeps description text intact. Add regression coverage for @for snippets.
Currently when we detect a `field` binding on a native element, we treat it as a built-in native control. This might not be the case if it's a pre-existing `ControlValueAccessor` relying on the CVA interop.
These changes try to detect any CVA-like directive on the element and disable the additional type checking if there are any.
Fixes#65468.
Ignore files that fail fs.exists() rather than throw ENOENT. Some applications deliberately create "broken" symbolic links that are not relevant to compilation (e.g. emacs lock files that link to owner "user@host").
The `type_check_block.ts` file was getting quite large and difficult to navigate. These changes split up the different pieces of functionality into separate files.
Reworks the way we approach type checking of signal forms to be closer to the behavior at runtime. There are a couple of scenarios that we handle:
1. For native controls, we now produce simplified type checking code that looks as follows:
```
var t1 = null! as number | string; // Type depends on the input `type`.
t1 = someField().value();
```
2. For custom controls we generate bindings to the individual inputs, rather than checking conformance against `FormValueControl`/`FormCheckboxControl`. This is closer to the behavior at runtime and it allows us to handle generic directives properly.
Refactor .pnpmfile.cjs to use a Set for localAngularPackages for better performance.
Adjust typescript dependency handling in compiler-cli to correctly use devDependencies.
Promote rxjs and zone.js from peer dependencies to regular dependencies for local packages.
These changes streamline dependency resolution and align with pnpm's behavior for workspace dependencies.
The `fullInheritane` flag from the metadata and the `CopyDefinitionFeature` that it controls appear to no longer be used since `fullInheritance` is always false. The feature appears to have been there to support ngcc which was removed some time ago.
Currently the logic for detecting `Field` directives only works if it's imported from `@angular/forms/signals` which doesn't cover our own tests.
These changes make the check more robust.
Adds some logic that won't report the `value` or `checked` inputs as missing when the `Field` directive is present since it will bind to the inputs implicitly.
Switches to checking against `FormValueControl<any>` instead of `FormValueControl<unknown>` when checking whether custom controls conform to the interface.
Fixes#64946.
By intersecting with `object` instead of `unknown` in the primitive and
`FormControl` cases, we get TypeScript to show nicer type errors that
mention `FieldTree<...>` insetad of `() => FieldState<...>`
For each field state property, check if it has changed since the last
time it was checked before writing it the corresponding form control
property.
The `pattern` and `required` properties of the field state now return a
default value rather than `undefined` if not defined by metadata.
Currently when a required input is missing, we produce a diagnostic on the entire start tag. This can be really noisy if there are already some attributes on the element.
This change switch to only highlighting the tag name instead.
This adds a new compilation error if someone attempts to put legacy animations and `animate.enter` or `animate.leave` in the same component.
PR Close#64569
Fixes a bug in the missingStructuralDirective diagnostic where structural directives with missing imports were not reported when the element using the structural directive contained other directives
Fixes#64467
co-authored-by: Matt Lewis <npm@mattlewis.me>
PR Close#64579
Fixes a bug in the missingStructuralDirective diagnostic where structural directives with missing imports were not reported when the element using the structural directive contained other directives
Fixes#64467
PR Close#64470
This fixes a performance regression from #63754, which is almost a revert of the
prior performance fix in #57291; the latter was provided as quick fix to address
the severe performance overhead this extended diagnostic used to have, with #57337
as follow-up change to address the false negatives that were introduced in #57291.
That follow-up never landed, though, so this commit is re-applying the changes
from #57337 to fix the performance regression.
Fixes#64403
PR Close#64410
Warns when @defer blocks define unreachable or redundant triggers, such as multiple main triggers, ineffective prefetches, or timer delays not scheduled before rendering.
PR Close#64069
Renames the control directive and the input that users set to bind a
field to a UI control.
Previously users would do:
```
<input [control]="someField">
```
Now users will do:
```
<input [filed]="someField">
```
PR Close#64300
Currently if `TestBed.overrideComponent` is used on a class that uses initializer APIs (e.g. `input()`), the initializer metadata will be wiped out, because `overrideComponent` re-compiles the class with the information set by `setClassMetadata`. `setClassMetadata` only captures decorated members at the moment.
These changes introduce some logic to capture the new initializer-based APIs in `setClassMetadata` as well.
Fixes#57944.
PR Close#63957
Reworks the logic that tracks the decorator metadata for members to do so using the output AST, rather than wrapping the TypeScript AST. This makes it easier to programmatically generate new members that weren't part of the TypeScript AST before.
PR Close#63957
Move most of the implementation of the `Control` directive into core
framework instructions. This allows field state changes to be propagated
to their corresponding UI controls directly during execution of a
template update block, instead of relying on `effect()`s to synchronize
each change later during the update (and too late in the case of
required inputs).
* Define a private API in `@angular/core` for signal forms to implement:
* `ɵControl` for the `Control` directive.
* `ɵFieldState` for the control's associated `FieldState`.
* Emit specialized instructions when compiling a `[control]` binding:
* `ɵɵcontrolCreate` sets up the `ɵControl` directive if present,
determines whether it's bound to a native control element or a
custom control component, and adds the appropriate event listeners
to notify the `ɵFieldState` of UI changes.
* `ɵɵcontrol` propagates changes from `ɵFieldState` properties to their
corresponding UI control properties (in additional to binding the `control`
property itself).
PR Close#63773
* Emit a `ɵɵcontrol` instruction in place of `ɵɵproperty` for property
bindings named "control". This instruction cannot be chained, but is
otherwise functionally equivalent.
* Upcoming changes will use the `ɵɵcontrol` instruction to bind a signal
form field to a UI control (be it a native element or custom directive).
PR Close#63773
This commit updates the TypeScript configuration across the project to use `moduleResolution: "bundler"`. This modernizes our module resolution strategy to align with current TypeScript best practices and bundler behaviors.
The following changes are included:
- Updated `tsconfig.json` files to set `moduleResolution` to `"bundler"`.
- Updated the `rules_angular` bazel dependency to a version compatible with these changes.
- Adjusted related test files and golden files to reflect the new module resolution strategy.
PR Close#64125
When `noUncheckedIndexedAccess` is not enabled, indexed accesses do not include `undefined` in the type.
This makes the OptionalChainNotNullableCheck inconvenient when wanting to safe guard an indexed access (and when the typings isn't helping you).
Ideally project should enable `noUncheckedIndexedAccess` for better typesafety, but this is often inconveninent (we do not enable it by default) and often not the resort of the developer.
So more better coding convinience, `OptionalChainNotNullableCheck` will not raise an error/warning on indexed Acessed followed by an optional chaining when `noUncheckedIndexedAccess` is not enabled.
See also #63809 which will detect more cases
PR Close#64007
Fixes an error where using an alias in a defer block caused the compiler CLI to fail when parsing. The resolution logic in ComponentDecoratorHandler was updated to correctly handle deferred dependencies with aliased imports.
PR Close#63966
https://github.com/angular/angular/pull/62630 made it so that all ARIA
property bindings would write to their corresponding attribute instead.
The primary motivation for this change was to ensure that ARIA
attributes were always rendered correctly on the server, where the
emulated DOM may not correctly reflect ARIA properties as attributes.
Furthermore, this change added support for binding to ARIA attributes
using the property binding syntax (e.g. `[aria-label]`).
Unfortunately, https://github.com/angular/angular/pull/62630 relied on
the incorrect assumptions that an ARIA property name could be converted
to its attribute name (without hardcoding the conversion), and that the
value of an ARIA property matched its corresponding attribute. For
example, the `ariaLabelledByElements` property's value is an array of
DOM elements, while the corresponding `aria-labelledby` attribute's
value is a string containing the IDs of the DOM elements.
This partially reverts https://github.com/angular/angular/pull/62630 so
that only property bindings with ARIA attribute names (begin with
`aria-`) are converted to attribute bindings.
* `[ariaLabel]` will revert to binding to the `ariaLabel` property.
* `[aria-label]` will continue binding to the `aria-label` attribute.
Note the only difference between `[aria-label]` and `[attr.aria-label]`
is that the former will attempt to bind to inputs of the same name while
the latter will not.
PR Close#63925
Currently if `TestBed.overrideComponent` is used on a class that uses initializer APIs (e.g. `input()`), the initializer metadata will be wiped out, because `overrideComponent` re-compiles the class with the information set by `setClassMetadata`. `setClassMetadata` only captures decorated members at the moment.
These changes introduce some logic to capture the new initializer-based APIs in `setClassMetadata` as well.
Fixes#57944.
PR Close#63904
Reworks the logic that tracks the decorator metadata for members to do so using the output AST, rather than wrapping the TypeScript AST. This makes it easier to programmatically generate new members that weren't part of the TypeScript AST before.
PR Close#63904
Prior to this change the template type-check generator would incorrectly apply inputs
and attributes to a structural directive, where only the bindings as present in microsyntax
are actually bound to the directive. This introduced a problem where usages of template
variables could not be resolved, because the template variables are out-of-scope of the
template element itself.
Closes#49931
PR Close#52453
This option was deprecated by #55778.
BREAKING CHANGE: The `interpolation` option on Components has been removed. Only the default `{{ ... }}` is now supported.
PR Close#63474
The diagnostic will raise an error when required initializers (input, model, queries) are invoked the context of property initializers and contructors.
Docs will be provided in a follow-up
fixes#63602
PR Close#63614
The diagnostic that flags signals which haven't been invoked has some logic to skip over inputs, however it was looking at the used directives across the entire template, not the ones on the specific node.
Fixes#63739.
PR Close#63754
This updates the enter and leave logic to use the stored LView data to dispatch the enter and leave animations at the right points in the lifecycle. This should fix issues with signals not being available yet, parallel animations, and also eliminate the need for the element registry.
fixes: #63391fixes: #63388fixes: #63369
PR Close#63450
In order to point the right context, links in error messages will target the archived version of the online doc site (v*.angular.io).
See #44650
PR Close#63512
Type checking of host bindings was added in v20. We're now confident enough in it to enable it by default.
BREAKING CHANGE:
* Previously hidden type issues in host bindings may show up in your builds. Either resolve the type issues or set `"typeCheckHostBindings": false` in the `angularCompilerOptions` section of your tsconfig.
PR Close#63654
Updates the version range to drop support for TypeScript 5.8.
BREAKING CHANGE:
* TypeScript versions less than 5.9 are no longer supported.
PR Close#63589
The new animations was not correctly looking for the `.` when parsing bindings. This resulted in arbitrary event bindings creating animate.leave instruction calls.
fixes: #63466
PR Close#63470
The animate instructions were getting applied to the container comment nodes as well as the element nodes. This prevents that on the compiler level.
fixes: #63371
PR Close#63390
Change direct deps in bazel targets and import specifiers within files to maintain strict deps requirements ahead of enabling strict deps tests in the repo
PR Close#63323
Ts 5.9 introduced a regression coming from 5.8 when parenthesis aren't generated for expressions like (`(a ?? b) && c`).
This fix works around this explicitly specifying that we want to keep those parenthesis that we're aware of in this specific case;
This change can be reverted if the root issue (https://github.com/microsoft/TypeScript/issues/61369) is fixed. (but let's keep the tests in any case for the coverage)
fixes#63287
PR Close#63292
Fixes that the HMR extraction logic didn't accoubnt for expressions with type arguments (e.g. `viewChild('foo', {read: TemplateRef<unknown>})`).
Fixes#63240.
PR Close#63261
In the context of TypeScript (TS), a re-exported symbol is considered a distinct symbol.
This means that a developer can choose to import either the re-exported symbol or
the original symbol. However, in the context of Angular, the re-exported symbol
is treated as the same component because it uses the same selector.
This pull request will utilize the most recent re-export component file to
resolve the module specifier.
PR Close#62585
Host bindings for `(animate.enter)` and `(animate.leave)` were not firing properly. This fixes the compiler ingest to make sure they do fire.
fixes: #63199
PR Close#63217
Fixes that the pipeline wasn't processing the fallback content of `ng-content` for i18n which resulted in a compiler error further down the line.
Fixes#63065.
PR Close#63156
Running the Angular compiler with declaration-only emission is dangerous
because Angular does not yet support this mode as it relies on the Ivy
compilation which does not run in this mode
In the best case, everything works fine as incidentally there's no
difference in the emitted type declarations (e.g. this is the case for
TS files containing no Angular annotations or only `@Injectable`
annotations).
In the worst case, compilation silently fails in that the compilation
succeeds but the resulting type declarations are missing the Angular
type information and are therefore incomplete. This happens for all
components, directives and modules.
BREAKING CHANGE: The Angular compiler now produces an error when the
the `emitDeclarationOnly` TS compiler option is enabled as this mode is
not supported.
PR Close#61609
Fixes that the compiler was throwing an error if type checking of host bindings is enabled for a generic directive. The problem was that we were always using the `TcbNonGenericDirectiveTypeOp`.
Fixes#63052.
PR Close#63061
Deprecated diagnostics can appear on the context guard becaues the
directive itself may be deprecated.
For example, context guards look like `if (i1.NgForOf.ngTemplateContextGuard(_t8, _t9) /*331,378*/) {...}`
and typescript will report the deprecation on the whole element, from
start to end tag, because the span for that node includes it.
fixes https://github.com/angular/vscode-ng-language-service/issues/2203
PR Close#63054
This fixes an issue caused by
https://github.com/angular/angular/pull/62648 for older versions of
Angular when the newest version of the language service is used. This
prevents the TCB from attempting to use the assertType when it does not
exist.
fixes#63046
PR Close#63053
using the `getSymbol` instead of the `type.symbol`, for the primitive type,
the `type.symbol` returns the `undefined` value. The return type of `getSymbol`
includes `undefined`, while `type.symbol` does not.
For example:
```ts
class BarComponent {
/**
* @deprecated
*/
name = ""
}
```
The type of `name` is `string`, the `type.symbol` for the `string`
returns `undefined` here.
e3ef7ff50d/src/services/types.ts (L111)e3ef7ff50d/src/compiler/types.ts (L6445)
PR Close#63002
Currently the code that type checks host bindings assumes that all listeners are bound to the DOM, however that's not the case since host bindings can also bind to own outputs.
These changes update the TCB to generate the proper code for type checking such outputs.
Fixes#62783.
PR Close#62965
The diagnostic was displaying `'Function in text interpolation should be invoked: ect Object]()` instead of `'Function in text interpolation should be invoked: firstName()'.
PR Close#62842
Currently the HTML parser will stop parsing as soon as it hits an end character in the name of an attribute (e.g. `/` or `>`). This ends up being problematic with some third-party packages like Tailwind which uses a wider range of characters for its class names. While the characters are fine when inside the `class` attribute, our current parser behavior prevents users from setting those classes conditionally through `[class.]` bindings.
These changes adjust the parser to handle such cases.
Fixes#61671.
PR Close#62742
Allow binding to ARIA attributes using property binding syntax _without_
the `attr.` prefix. For example, `[aria-label]="expr"` is now valid, and
equivalent to `[ariaLabel]="expr"`. Both examples bind to either a
matching input or the `aria-label` HTML attribute, rather than the
`ariaLabel` DOM property.
Binding ARIA properties as attributes will ensure they are rendered
correctly on the server, where the emulated DOM may not correctly
reflect ARIA properties as attributes.
Reuse the DOM schema registry from the compiler to map property names in
type check blocks.
PR Close#62630
Currently we infer the target of DOM events to be `EventTarget | null` which is consistent with the built-in types for `addEventListener`. This is due to the fact that users can dispatch custom events, or the event might've bubbled. However, this typing is also inconvenient for some other common use cases like `<input (input)="query($event.target.value)">`, because we don't have the ability to type cast in a template.
These changes aim to make some of the cases simpler by inferring the type of `$event.target` if the event is bound on a void element which guarantees that it couldn't have bubbled.
PR Close#62648
In the Typescript Language Service, these diagnostics are reported as suggestion diagnostics.
This will report the deprecated `Component`, `Directive`, etc.
Fixes https://github.com/angular/angular/issues/59343
PR Close#62054
