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
Non-typed `transform` functions were stripped by the migration prior to this commit (while still logging an error).
This behavior will now only happen with `--best-effort`.
#63541
PR Close#63547
In production builds, `ngDevMode` is replaced with `false`, so the guard compiles to `return;`. However, bundlers like ESBuild still keep the remaining statements after the return as unreachable code instead of removing them. This leaves behind unnecessary dead code in the output.
Technically, the body is unreachable. But to prove that, the bundler must be 100% certain that:
- `return` cannot be removed by some transform
- there's no later transformation that changes control flow
As thus, it's always conservative.
This also allows dropping `assertDefined`, which was previously
referenced only inside `prependTokenToDependencyPath`. With the
function now fully inlined and dev-only, `assertDefined` is also
eliminated from production builds, further reducing bundle size.
PR Close#63354
The `checkNoChanges` method previously used an early-return guard:
if (!ngDevMode) return;
// dev-only code ...
In production builds, `ngDevMode` is replaced with `false`, so the
guard compiles to `return;`. However, bundlers like ESBuild
still keep the remaining statements after the return as unreachable
code instead of removing them. This leaves behind unnecessary dead
code in the output.
This commit updates the method to instead wrap the full body:
if (ngDevMode) {
// dev-only code ...
}
With this change, the method collapses to an empty function in
production builds:
checkNoChanges() {}
This ensures that the dev-only logic and its dependencies
(e.g. `checkNoChangesInternal`, `UseExhaustiveCheckNoChanges`) can be
fully tree-shaken, reducing bundle size.
PR Close#63387
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 is a pure re-organization of the animations code. No functionality changes, but it should be easier to navigate now. Utility classes have been moved to a `utils.ts` file. The related functions in the instructions have been grouped closer together.
PR Close#63775
When a user has `animate.leave` on a list of items in a `@for`, but are only showing a subset using a computed, removing the second to last item results in a move operation on the last item. There's no native atomic move API in the browser. So this results in the element being detached and attached at its new index. The detaching of the node resulted in leave animations firing.
This fix addresses this by adding a flag in the `LView[ANIMATIONS]` `AnimationLViewData` interface to allow for skipping animations. During list reconciliation, we set this flag so that the animations are skipped over. The flag is flipped back after the move operation is complete.
There is one complication that results from this. The index adjustment of elements in the list happens synchronously while the leave animation is asynchronous. This results in the leaving item getting shifted to the end of the list. This is not ideal but likely can be addressed in a future refactor.
fixes: #63544
PR Close#63745
This makes it possible to batch effects, where we can "reopen" consumers
during initial render and then finalize them after we are finally done
adding all the effects to a batch:
```
function createBatch() {
const effect = // ... create effect node
resetConsumerBeforeComputation(effect);
return effect;
}
// pseudo-code
function appendEffect(effectBatch, updater) {
if (value is a signal) {
const prevConsumer = setActiveConsumer(effectBatch.node);
const output = value();
setActiveConsumer(prevConsumer);
effectBatch.push({ signal, updater });
return output;
}
}
function finalizeBatch(effectBatch) {
if (effectBatch.length > 0) {
finalizeConsumerAfterComputation(effectBatch.node);
}
}
const effectBatch = createBatchEffectNode();
appendEffect(signal1, (newValue) => /* something */);
appendEffect(signal2, (newValue) => /* something different */);
finalizeBatch(effectBatch);
```
PR Close#62549
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#63710
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
This will allow manually subscribed animation events to still fire when using `animate.leave`. Otherwise they were being cleaned up before the animations happened.
fixes: #63391
PR Close#63414
This commit introduces a number of changes to the server bootstrapping process to make it more robust and less error-prone, especially for concurrent requests.
Previously, the server rendering process relied on a module-level global platform injector. This could lead to issues in server-side rendering environments where multiple requests are processed concurrently, as they could inadvertently share or overwrite the global injector state.
The new approach introduces a `BootstrapContext` that is passed to the `bootstrapApplication` function. This context provides a platform reference that is scoped to the individual request, ensuring that each server-side render has an isolated platform injector. This prevents state leakage between concurrent requests and makes the overall process more reliable.
BREAKING CHANGE:
The server-side bootstrapping process has been changed to eliminate the reliance on a global platform injector.
Before:
```ts
const bootstrap = () => bootstrapApplication(AppComponent, config);
```
After:
```ts
const bootstrap = (context: BootstrapContext) =>
bootstrapApplication(AppComponent, config, context);
```
A schematic is provided to automatically update `main.server.ts` files to pass the `BootstrapContext` to the `bootstrapApplication` call.
In addition, `getPlatform()` and `destroyPlatform()` will now return `null` and be a no-op respectively when running in a server environment.
(cherry picked from commit 8bf80c9d2314b4f2bcf3df83ae01552a6fc49834)
PR Close#63636
The logic to track if the transfer state has been serialized is simplified by removing the need for `APP_ID`. Instead of maintaining a `Set` of application IDs, a simple boolean flag is used.
PR Close#63525
The `TRANSFER_STATE_SERIALIZED_FOR_APPID` provider was previously configured at the platform level, causing its state to be shared across all concurrent server-side rendering requests. This created a race condition where one request could see the `appId` from a different, concurrent request, leading to false warnings about duplicate state serialization.
This commit changes the provider's scope to ensure that each application instance gets its own unique state. This correctly isolates the serialization check to each individual request, resolving the issue of false warnings in concurrent environments.
Closes#63524
PR Close#63525
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
This commit updates provider definitions that relied on the `deps` array
with `new Optional()` and `new SkipSelf()` to instead use the modern
`inject(..., { optional: true, skipSelf: true })` API.
Previously:
deps: [[KeyValueDiffers, new SkipSelf(), new Optional()]]
Now:
const parent = inject(KeyValueDiffers, { optional: true, skipSelf: true });
**Bundle size reduction**: `Optional` and `SkipSelf` are runtime values
created by `makeParamDecorator()`. Even in production builds, esbuild
and other bundlers must keep their factory code because they are
referenced with `new Optional()` / `new SkipSelf()`. With `inject()`,
those classes are no longer referenced, allowing them and the
`makeParamDecorator` scaffolding to be tree-shaken when unused.
As a result, production bundles can drop both `Optional`, `SkipSelf`, and
their supporting factory code when not used elsewhere, reducing code size
while keeping the same behavior.
PR Close#63386
When toggling visibility on an element over and over, the enter animations were supposed to be cancelled and then the classes removed. There was a race condition happening that resulted in the cancelled animation being the leave animation. Rather than using the animation.cancel functionality, it's safer to just remove the enter classes.
fixes: #63439
PR Close#63442
Annotate the `new Version(...)` call with `/* @__PURE__ */` to signal to
optimizers that the constructor is side-effect free.
Without this hint, bundlers such as Terser or ESBuild may conservatively
retain the `VERSION` instantiation even when unused. With the annotation,
the constant can be tree-shaken away in production builds if not referenced,
reducing bundle size.
PR Close#63400
This commit prevents lazy injection of the internal `ErrorHandler` from a destroyed injector, which would otherwise result in a secondary "destroyed injector" error.
The `handleUncaughtError` function is used in a wrapped event listener that invokes the `ErrorHandler` if the listener throws. A simple case in a micro-frontend application:
```ts
onNavigationToAnotherApp() {
this.appRef.destroy();
do_some_stuff_ie_loggin_that_may_throw();
}
```
If the function throws an error, Angular attempts to inject the `ErrorHandler` from a destroyed injector.
PR Close#62275
When declaring directives, the standalone flag is set to true by default in current Angular versions.
The docs for the directive decorator should correctly explain the default behavior, while still mentioning when to set it to false.
PR Close#63329
Angular Robot