In the existing implementation the `elementPropertyInternal` function (meant to
set element properties) was executed even if a bound value didn't change. The
`elementPropertyInternal` was inspecting the incoming value and after comparing it
to `NO_CHANGE` - exiting early. All in all it meant that we were unnecessarily
invoking the `elementPropertyInternal` function for cases where bound value didn't
change.
Based on my bencharks (running change detection without any model update in a tight
loop) this unnecessary function call was causing ~5% slowdown in the change detection
process.
PR Close#30255
This commit fixes a regression introduced in PR 29692 where
the interpolate symbol in View Engine was improperly prefixed
with the ɵɵ that signifies private instructions for Ivy. It
resulted in interpolations of 10+ values not working correctly
in AOT mode. This commit removes the prefix.
PR Close#30243
Previously, `R3TestBedCompiler` was dynamically defining an
`@NgModule`-decorated `CompilerModule` class inside a method call.
Since ngcc only processes top-level classes, this class was not
transformed causing failures in unit tests (see #30121 for details).
This commit fixes it by using `compileNgModuleDefs()` directly (similar
to the fix in #30037).
Fixes#30121
PR Close#28530
Ivy uses R3Injector, but we are currently pulling in both the StaticInjector
(View Engine injector) and the R3Injector when running with Ivy. This commit
adds an ivy switch so calling Injector.create() pulls in the correct
implementation of the injector depending on whether you are using VE or Ivy.
This saves us about 3KB in the bundle.
PR Close#30219
Previously, we were supporting injection flags for provider deps, but only
if they fit the format `new Optional()`. This commit fixes resolution of
provider deps to also support `Optional` (without the new). This keeps us
backwards compatible with what View Engine supported.
PR Close#30216
Stores the views that are part of a container directly on the `LContainer`, rather than maintaining a dedicated sub-array.
This PR resolves FW-1288.
PR Close#30179
Currently, we are not properly resolving forward refs when they appear
in deps for providers created with the useFactory strategy. This commit
wraps provider deps in the resolveForwardRef call so the tokens are
passed into the inject function as expected.
PR Close#30201
Fixes `HostBinding` and `HostListener` declarations not being inherited from base classes that don't have an Angular decorator.
This PR resolves FW-1275.
PR Close#30158
Currently the `static-query` migrations fails at the final step of
updating a query when the query already specifies options which
cannot be transformed easily. e.g. the options are computed through
a function call: `@ViewChild(..., getQueryOpts());` or `@ViewChild(..., myOptionsVar)`.
In these cases we technically could add additionally logic to update
the query options, but given that this is an edge-case and it's
potentially over-engineering the migration schematic, we just
always add a TODO for the timing and print out the determined
query timing in the console. The developer in that case just needs
to manually update the logic for the query options to contain the
printed query timing.
Potentially related to: https://github.com/angular/angular-cli/issues/14298
PR Close#30178
Introduces a new Bazel test that allows us to inspect
what source-files contribute to a given bundled file
and how much bytes they contribute to the bundle size.
Additionally the size-tracking rule groups the size
data by directories. This allows us to compare size
changes in the scope of directories. e.g. a lot of
files in a directory could increase slightly in size, but
in the directory scope the size change could be significant
and needs to be reported by the test target.
Resolves FW-1278
PR Close#30070
Disables the injectable pipe migration until we can decide whether this is the right solution for Ivy. Rolling it out properly will involve a more detailed plan and more changes like updating the styleguide, scaffolding schematics etc.
Context for the new `test-migrations.json`: since we use the `migrations.json` both for the real migrations and for tests, it doesn't allow us to disable a schematic, but continue running its tests. This change adds the test-specific file so that we can continue running the `injectable-pipe` tests, even though the schematic itself is disabled.
PR Close#30180
Currently the injectable pipe schematic generates invalid imports like `import import { Pipe, PipeTransform, Injectable } from '@angular/core'; from '@angular/core';`. The issue wasn't caught by the unit tests, because the invalid import still contains the valid one.
Fixes#30159.
PR Close#30170
Fixes Ivy reflecting properties with `undefined` values, rather than omitting them. Also fixes that Ivy doesn't clear the reflected values when property value changes from something that is defined to undefined.
This PR resolves FW-1277.
PR Close#30103
Move tests for special tokens like `Injector`, `ElementRef`, `TemplateRef`, `ViewContainerRef`, `ChangeDectetorRef` and custom string tokens.
PR Close#29299
- Extracts and documents code that will be common to interpolation instructions
- Ensures that binding indices are updated at the proper time during compilation
- Adds additional tests
Related #30011
PR Close#30129
The proposed ES dynamic import() is now supported by the Angular CLI and the
larger toolchain. This renders the `loadChildren: string` API largely
redundant, as import() is far more natural, is less error-prone, and is
standards compliant. This commit deprecates the `string` form of
`loadChildren` in favor of dynamic import().
DEPRECATION:
When defining lazy-loaded route, Angular previously offered two options for
configuring the module to be loaded, both via the `loadChildren` parameter
of the route. Most Angular developers are familiar withthe `string` form of
this API. For example, the following route definition configures Angular to
load a `LazyModule` NgModule from `lazy-route/lazy.module.ts`:
```
[{
path: 'lazy',
loadChildren: 'lazy-route/lazy.module#LazyModule',
}]
```
This "magic string" configuration was previously necessary as there was
no dynamic module loading standard on the web. This has changed with the
pending standardization of dynamic `import()` expressions, which are now
supported in the Angular CLI and in web tooling in general. `import()`
offers a more natural and robust solution to dynamic module loading. The
above example can be rewritten to use dynamic `import()`:
```
[{
path: 'lazy',
loadChildren: () => import('./lazy-route/lazy.module').then(mod => mod.LazyModule),
}]
```
This form of lazy loading offers significant advantages in terms of:
* type checking via TypeScript
* simplicity of generated code
* future potential to run natively in supporting browsers
(see: [caniuse: dynamic import()](https://caniuse.com/#feat=es6-module-dynamic-import))
As a result, Angular is deprecating the `loadChildren: string` syntax in
favor of ES dynamic `import()`. An automatic migration will run during
`ng upgrade` to convert your existing Angular code to the new syntax.
PR Close#30073
The `renderStringify` function is used in a lot of performance-sensitive places, however it contains a megamorphic read which is used primarily for error messages. These changes introduce a new function that can be used to stringify output for errors and removes the megamorphic read from `renderStringify`.
This PR resolves FW-1286.
PR Close#30082
Fixes view and content queries not being inherited in Ivy, if the base class hasn't been annotated with an Angular decorator (e.g. `Component` or `Directive`).
Also reworks the way the `ngBaseDef` is created so that it is added at the same point as the queries, rather than inside of the `Input` and `Output` decorators.
This PR partially resolves FW-1275. Support for host bindings will be added in a follow-up, because this PR is somewhat large as it is.
PR Close#30015
Currently when someone runs `ng update` with the static-query migration,
the migration can fail with an error saying that the `AOT` compiler could not
be created. This can happen if the CLI project contains a test `tsconfig.json`
that is picked up by the schematic.
Due to the fact that spec tsconfig files cannot be ran with NGC (e.g. test
components are not part of a module; not all source files are guaranteed to
be included), test `tsconfig` projects will now use a new `test` migration
strategy where all queries within tests are left untouched and a TODO is added.
PR Close#30034
This commit unifies the way auxillary RootScopeModule and DynamicTestModule are compiled in R3TestBed by calling `compileNgModuleDefs` explicitly for RootScopeModule. This change also resolves the problem where TestBed's code was used from the @angular/core NPM package: due to the "jit" flag, the @NgModule decorator on the RootScopeModule was transformed to RootScopeModule.decorators = [...], but actual ngModuleDef was never defined.
PR Close#30037
Fixes Ivy throwing an error because it tries to generate styling instructions for empty `style` and `class` bindings.
This PR resolves FW-1274.
PR Close#30024
Currently the `template-var-assignment` migration incorrectly warns if
the template writes to a property in the component that has the same
`ast.PropertyWrite´ name as a template input variable but different
receiver. e.g.
```html
<!-- "someProp.element" will be incorrectly reported as template variable assignment -->
<button *ngFor="let element of list" (click)="someProp.element = null">Reset</button>
```
Similarly if an output writes to a component property with the same name as a
template input variable, but the expression is within a different template scope,
the schematic currently incorrectly warns. e.g.
```html
<button *ngFor="let element of list">{{element}}</button>
<!-- The "element = null" expression does not refer to the "element" template input variable -->
<button (click)="element = null"></button>
```
PR Close#30026
Previously, we had a bug where directive matching could fail if the directive
attribute was bound and followed a certain number of classes. This is because
in the matching logic, we were treating classes like normal attributes. We
should instead be skipping classes in the attribute matching logic. Otherwise
classes will match for directives with attribute selectors, and as we are
iterating through them in twos (when they are stored as name-only, not in
name-value pairs), it may throw off directive matching for any bound attributes
that come after. This commit changes the directive matching logic to skip
classes altogether.
PR Close#30002
We only set ng-reflect properties on directive input bindings.
This PR ensures that we also add ng-reflect properties on unbound inputs for backwards compatibility.
FW-1266 #resolve
PR Close#29973
This commit adds registration of AOT compiled NgModules that have 'id'
properties set in their metadata. Such modules have a call to
registerNgModuleType() emitted as part of compilation.
The JIT behavior of this code is already in place.
This is required for module loading systems (such as g3) which rely on
getModuleFactory().
PR Close#29980
Previous to this change, we assumed embedded views could only be created after
their parent template node had completed processing. As a result, we only set
up query logic for containers after directives on the node were created.
However, this assumption didn't take into account the case where a directive
on a template node could create views in its constructor.
This commit fixes query logic to work with views created in constructors.
In that case, we need to create a query container before the new view is
rendered so query results in the view aren't lost. But since the query container
is created before directives have completed processing, we also have to ensure
that query results gathered later on the template node are inserted before that
query container. Otherwise, query results in embedded views will clobber query
results on template nodes.
This splice mode may be slightly slower than the normal matching for queries on
containers, but we should only fall back to this strategy in the edge case where
views are created in constructors. (We should encourage developers to create
views in ngOnInit instead).
PR Close#29983
Prior to this change, components created via TestBed.createComponent in the same test were placed into the same root context, which caused problems in conjunction with fixture.autoDetectChanges usage in the same test. Specifically, change detection was triggered immediately for created component (starting from the 2nd one) even if it was not required/desired. This commit makes Ivy and VE behavior consistent: now every component created via TestBed.createComponent is isolated from each other. Current solution uses host element id naming convention, which is not ideal, but helps avoid public API surface changes at this point (we might revisit this approach later).
Note: this commit also adds extra tests to verify bootstrap and change detection behavior in case of multiple components in `bootstrap` array in @NgModule, to make sure this behavior is aligned between Ivy and VE.
PR Close#29981
Currently the `template-strategy` for the static query migration uses the
Angular compiler in order to determine the query timing. This is problematic
as the AngularCompilerProgram also collects metadata for referenced
component stylesheets which aren't necessarily present. e.g. in a CLI
project the component can reference a Sass file. It's not guaranteed
that the standalone Angular compiler plugin supports Sass without
custom logic that is brought in by the Angular CLI webpack plugin.
In order to avoid any failures for invalid stylesheets, we just disable
normalizing of all referenced stylesheets.
PR Close#29876
Currently there are two available migration strategies for the `static-query`
schematic. Both have benefits and negatives which depend on what the
developer prefers. Since we can't decide which migration strategy is the
best for a given project, the developer should be able to select a specific
strategy through a simple choice prompt.
In order to be able to use prompts in a migration schematic, we need to
take advantage of the "inquirer" package which is also used by the CLI
schematic prompts (schematic prompts are usually only statically defined
in the schema). Additionally the schematic needs to be made "async"
because with prompts the schematic can no longer execute synchronously
without implementing some logic that blocks the execution.
PR Close#29876
With dts bundles, `core.d.ts` will include an `EventListener` class as it's used in 303eae918d/packages/core/src/debug/debug_node.ts (L32)
This will conflict with the DOM EventListener, as anything in `core.d.ts` which is using the DOM EventListener will fallback in using the one defined in the same module and hence build will fail because their implementation is different.
With this change, we rename the local `EventListener` to `DebugEventListener`, the later one is non exported.
Fixes#29806
PR Close#29809
When compiling Angular classes, the compiler may decide to append statements with specific metadata that's only required for JIT. This includes things like decorator metadata as well as NgModule scope data.
When the compiler generates such calls, the call sites are marked with Uglify's PURE annotation, so the optimizer will remove them in production builds. However, Closure does not have the PURE (or similar) annotation. We have a utility function `noSideEffects` in the runtime for this purpose. This commit wraps `setClassMetadata` and `setNgModuleScope` function bodies in `noSideEffect` closures to allow Closure remove them.
PR Close#29947
The `TNode.cleanup` data structure can contain sequences of 4-element
sequence of entries (event handlers, directive outputs) mixed with
2-element sequence of entries (QueryList cleanup). Before this fix
we would always skip 4 elements in the `TNode.cleanup` while looking
up event handler cleanups. 4-element skips are not correct in case
of query cleanup presence and this commit corrects the algorithm to
jump 4 or 2 elements depending on a type of cleanup encountered.
PR Close#29957
If a component has its definition set by defineComponent (as opposed to
JIT getter), then it will generate a factory that uses directiveInject()
to retrieve its dependencies. This can be problematic in test code because
tests could use the injection utility before bootstrapping the component,
and directiveInject() relies on the view having been created.
This commit tweaks directiveInject() to fall back to inject() if the view
has not been created. This will allow injection to work in tests even if
it is called before the component is bootstrapped.
PR Close#29948
Previous to this commit, providing a component or directive in a test
module without @Injectable() would throw because the injectable factory
would not be found. Providing components in tests in addition to declaring
or importing them is not necessary, but it should not throw an error.
This commit ensures factory data is saved when component defs and directive
defs are created, which allows them to be processed by the module injector.
Note that bootstrapping is still required for this setup to work because
directiveInject() does not support cases where the view has not been
created. This case will be handled in a future commit.
PR Close#29945
We had a bug where event.preventDefault() was not always called if listeners
were coalesced. This is because we were overwriting the previous listener's
result every time we called the next listener, so listeners early in the chain
that returned false would be ignored and preventDefault would not be called.
This commit fixes that issue, so now preventDefault() is called if any listener
in a coalesced chain returns false. This brings us in line with View Engine
behavior.
PR Close#29934
Overriding multi provider values (providers with `multi: true` flag) via TestBed require additional handling: all existing multi-provider values for the same token should be removed from the override list, so that they are not included into the final value of a given provider. This commit adds this logic to make sure we handle multi providers correctly.
PR Close#29919
Because the styling context may be stored in a different location
and be apart of a sub array, reading the styling context each time
a host binding is evaluated is costly. This patch ensures that the
active styling context is cached so that multiple interactions with
styling bindings can easily retrieve the styling context efficiently.
PR Close#29818
Currently if there are multiple source files within a given
TypeScript source file, only the last template in the source
file is checked as we store templates in a `Map` with the
source file paths as keys.
This is problematic as multiple templates can live within the
same source file and we therefore accidentally overwrite
existing entries in the resolved templates map.
PR Close#29841
Introduces a new strategy for the `static-query` schematic that
is enabled by default. In order to provide a migration that works
for the most Angular applications and makes the upgrade as easy
as possible, the template strategy leverages the view engine
Angular compiler logic in order to determine the query timing
that is currently used within applications using view engine.
PR Close#29815
In order to support multiple strategies for detecting the query timing, the
query usage logic has been moved into a query usage strategy.
PR Close#29815
Plural ICU expressions depend on the locale (different languages have different plural forms). Until now the locale was hard coded as `en-US`.
For compatibility reasons, if you use ivy with AOT and bootstrap your app with `bootstrapModule` then the `LOCALE_ID` token will be set automatically for ivy, which is then used to get the correct plural form.
If you use JIT, you need to define the `LOCALE_ID` provider on the module that you bootstrap.
For `TestBed` you can use either `configureTestingModule` or `overrideProvider` to define that provider.
If you don't use the compat mode and start your app with `renderComponent` you need to call `ɵsetLocaleId` manually to define the `LOCALE_ID` before bootstrap. We expect this to change once we start adding the new i18n APIs, so don't rely on this function (there's a reason why it's a private export).
PR Close#29249
Prior to this change, element attributes annotated with i18n- prefix were removed from element attribute list and processed separately by i18n-specific logic. This behavior is causing issues with directive matching, since attributes are not present in the list of attrs for matching purposes. This commit updates i18n logic to retain attributes in the main attribute list, thus allowing directive matching logic to work correctly.
PR Close#29856
In order to be backwards compatible with View Engine, Ivy should log
errors by default in the TestBed error handler rather than re-throwing
them. Re-throwing the errors is a breaking change that causes issues with
libraries like ngrx that have async behavior and custom error handling.
This logging approach has issues (for both VE and Ivy) because it can allow
tests to pass inappropriately if errors are thrown inside listeners. However,
since re-throwing would be breaking and requires a larger redesign, we should
wait until post-Ivy.
PR Close#29853
Previously, this check was done with bracket property access on the
global object: global['goog']
This will not be minified when Closure compiles this code, which:
1) breaks, because 'goog' will have been minified but the check won't have
taken that into consideration
2) causes build failures in g3, because the actual property 'goog' is
forbidden in some published JS code (to ensure obfuscation).
A TODO is added to validate that this logic is correct, as it's difficult to
test within the Angular repo.
PR Close#29873
The `Δ` caused issue with other infrastructure, and we are temporarily
changing it to `ɵɵ`.
This commit also patches ts_api_guardian_test and AIO to understand `ɵɵ`.
PR Close#29850
The code failed presubmit in google3 because the original ts config was not as strict
as the one used elsewhere in angular/angular and google3.
PR Close#29843
So far using runtime i18n with ivy meant that you needed to use Closure and `goog.getMsg` (or a polyfill). This PR changes the compiler to output both closure & non-closure code, while the unused option will be tree-shaken by minifiers.
This means that if you use the Angular CLI with ivy and load a translations file, you can use i18n and the application will not throw at runtime.
For now it will not translate your application, but at least you can try ivy without having to remove all of your i18n code and configuration.
PR Close#28689
Queries can technically be also accessed within component templates
e.g.
```html
<my-comp [binding]="myQuery"></my-comp>
```
In that case the query with the property "myQuery" is accessed
statically and needs to be marked with `static: true`. There are
other edge cases that need to be handled as the template property
read doesn't necessarily resolve to the actual query property.
For example:
```html
<foo #myQuery></foo>
<my-comp [binding]="myQuery"></my-comp>
```
In this scenario the binding doesn't refer to the actual query
because the template reference variable takes precedence. The
query doesn't need to be marked with "static: true" this time.
This commit ensures that the `static-query` migration schematic
now handles this cases properly. Also template property reads
that access queries from within a `<ng-template>` are ignored
as these can't access the query before the view has been initialized.
Resolves FW-1216
PR Close#29713
- Removes `@publicApi` annotation from ivy instructions
- Adds new `@codeGenApi` annotation to ivy instructions
- Updates ts_api_guardian to support the new annotation properly
PR Close#29820
Currently in Ivy we pass both the raw and parsed selectors to the projectionDef instruction, because the parsed selectors are used to match most nodes, whereas the raw ones are used to match against nodes with the ngProjectAs attribute. The raw selectors add a fair bit of code that won't be used in most cases, because ngProjectAs is somewhat rare.
These changes rework the compiler not to output the raw selectors in the projectionDef, but to parse the selector in ngProjectAs and to store it on the TAttributes. The logic for matching has also been changed so that it matches the pre-parsed ngProjectAs selector against the list of projection selectors.
PR Close#29578
- Adds the instructions
- Adds tests for all instructions
- Adds TODO to remove all tests when we are able to test this with TestBed after the compiler is updated
PR Close#29576
- moves the property instruction to its own file
- moves shared functions that should not be public to the existing `shared.ts` file.
- adds the export of `property.ts` to `all.ts`
PR Close#29576
While investigating styling performance regressions, it was discovered
that a single `fn(...args)` operation was causing a performance hit
because the generated es5 `__spread` operation uses `[].concat` and
reads from the `arguments` values (which are not very efficient). This
patch changes that around to use `fn.apply` instead.
PR Close#29795
Currently the `static-query` and `template-var-assignment` schematic only runs
for `8.0.0` which does not include any betas or release candidates. We want to
run the schematic in the beta's and RC in order to get early feedback about the
schematics. Enabling it promptly with V8 stable release can result in accidental
breakages that we would like to fix/identify before.
PR Close#29735
Queries can not only be accessed within derived classes, but also in
the super class through abstract methods. e.g.
```
abstract class BaseClass {
abstract getEmbeddedForm(): NgForm {}
ngOnInit() {
this.getEmbeddedForm().doSomething();
}
}
class Subclass extends BaseClass {
@ViewChild(NgForm) form: NgForm;
getEmbeddedForm() { return this.form; }
}
```
Same applies for abstract properties which are implemented in the base class
through accessors. This case is also now handled by the schematic.
Resolves FW-1213
PR Close#29688
Currently the static-query schematic is not able to properly handle
call expressions that pass function declarations that access a given
query. e.g.
```ts
ngOnInit() {
this._callFunction(() => this.myQuery.doSomething());
}
_callFunction(cb: any) { cb(); }
```
In that case the passed function is executed synchronously in
the "ngOnInit" lifecycle and therefore the query needs to be
detected as "static".
We can fix this by keeping track of the current function context
and using it to resolve identifiers to the passed arguments.
PR Close#29663
Currently we only check getters for property access expressions. This is wrong
because property access expressions do not always cause the "getter" to be
triggered. e.g.
```ts
set a() {...}
get a() {...}
ngOnInit() {
this.a = true;
}
```
In that case the schematic currently incorrectly checks the "getter", while this is a binary
expression and the property access is used as left-side of the binary expression. In that
case we need to check the setter declaration of the property and not the "getter". In order
to fix this, we need to also check `ts.BinaryExpression` nodes and check getters/setters
based on the used operator token. There are three types of binary expressions:
1) Value assignment (using `=`). In that case only the setter is triggered.
2) Compound assignment (e.g. using `+=`). In that case `getter` and `setter` are triggered.
3) Comparison (e.g. using `===`). In that case only the getter is triggered.
PR Close#29663
Fixes the creation mode block not being run on components which have been detached from change detection.
This PR resolves FW-1217.
Fixes#29645.
PR Close#29741
Fixes Ivy not throwing an error if it runs into an invalid property binding on a container node (e.g. `<div *ngFor="let row of rows">` instead of `<div *ngFor="let row if rows">`).
This PR resolves FW-1219.
PR Close#29691
In order to optimize performance for styling-related operations in
Angular, debug counters need to be introduced. This patch adds various
counters to ngDevMode which are fired each time a styling-related
binding is updated.
PR Close#29579
The `template-var-assignment` schematic currently complains if someone
assigns a value to a template variable. This will no longer work with Ivy, but
it should be totally fine to update a property of the template variable if it refers
to an object. This commit adds a test that ensures that we don't incorrectly report
any failure for such property writes in bound events.
PR Close#29708
Improves the failure messages for the `template-var-assignment` schematic. After manual
testing of the schematic it's not quite clear for developers what the failure message means
without any context. The schematic now also references a short markdown file mentioning
what needs to be changed, but eventually this document needs to be expanded with more
information and context of the reasoning behind this change within Ivy.
PR Close#29708
The new styling algorithm in angular is designed to evaluate host
bindings stylinh priority in order of directive evaluation order. This,
however, does not work with respect to parent/sub-class directives
because sub-class host bindings are run after the parent host bindings
but still have priority. This patch ensures that the host styling bindings
for parent and sub-class components/directives are executed with respect
to the styling algorithm prioritization.
Jira Issue: FW-1132
PR Close#29602
Prior to this change, any provider that was independently resolved using
its InjectableDef would not be considered when destroying the module it
was requested from. This commit provides a fix for this issue by storing
the resolved provider in the module's list of provider definitions.
Fixes#28927
PR Close#28943
Adds an overload to TestBed.get making parameters strongly typed and
deprecated previous signature that accepted types `any`. The function
still returns `any` to prevent build breakages, but eventually stronger
type checks will be added so a future Angular version will break builds
due to additional type checks.
See previous breaking change - #13785
Issue #26491
PR Close#29290
Pawel Kozlowski
Kara Erickson
George Kalpakas
crisbeto
Paul Gschwendtner
cexbrayat
Marc Laval
Ben Lesh
Martin Mädler
Alex Rickabaugh
Andrew Kushnir
Adam Plumer
Olivier Combe
Filipe Silva
Alan Agius
Greg Magolan
Matias Niemelä
Igor Minar
Peter Johan Salomonsen
Bowen Ni
Brandon
JoostK
Carlos Ortiz García