58 Commits

Author SHA1 Message Date
Ramesh Thiruchelvam 3797d1022d refactor(core): make the error messages tree shakable (#44359)
Long error messages can be tree-shaken in the production build and replaced with error codes.

See: https://github.com/angular/angular/pull/44219#issuecomment-983216374

PR Close #44359
2022-01-18 17:38:10 -08:00
Ramesh Thiruchelvam cab81ba13a refactor(common): make the error messages tree shakable (#44663)
Make Long error messages tree-shakable in the production build with error codes.

fixes #40096

PR Close #44663
2022-01-18 10:31:44 -08:00
Paul Gschwendtner ef0d161d3a build: switch all instances from ng_rollup_bundle to app_bundle (#44490)
The `ng_rollup_bundle` rule has been replaced with a new rule called
`app_bundle`. This rule replicates the Angular v13 optimization
pipeline in the CLI, so that we can get better benchmarking results.
Also the rule is much simpler to maintain as it relies on ESbuild.

The old `ng_rollup_bundle` rule did rely on e.g. build-optimizer that no
longer has an effect on v13 Angular packages, so technically size
tests/symbol tests were no longer as correct as they were before. This
commit fixes that.

A couple of different changes and their explanation:

* Language-service will no longer use the benchmark rule for creating
  its NPM bundles! It will use plain `rollup_bundle`. ESBuild would have
  been nice but the language-service relies on AMD that ESBuild cannot
  generate (yet?)

* Service-worker ngsw-worker.js file was generated using the benchmark
  bundle rule. This is wrong. We will use a simple ESbuild rule in the
  future. The output is more predictable that way, and we can have a
  clear use of the benchmark bundle rule..

* A couple of benchmarks in `modules/` had to be updated to use e.g.
  `initTableUtils` calls. This is done because with the new rule, all
  files except for the entry-point are considered side-effect free. The
  utilities for benchmarks relied on side-effects in some
  transitively-loaded file (bad practice anyway IMO). We are now
  initializing the utilities using a proper init function that is
  exported...

PR Close #44490
2022-01-04 12:14:15 -08:00
Alex Rickabaugh 8c71b9fc42 refactor: delete the View Engine runtime (#43884)
This commit removes the View Engine runtime. Itself, this change is
relatively straightforward, but it represents the final step in a multi-year
journey. It's only possible due to the hard work of many current and former
team members and collaborators, who are too numerous to list here.

Co-authored-by: Alan Agius <alan.agius4@gmail.com>
Co-authored-by: Andrew Kushnir <akushnir@google.com>
Co-authored-by: Andrew Scott <atscott01@gmail.com>
Co-authored-by: Andrew Seguin <andrewjs@google.com>
Co-authored-by: Cédric Exbrayat <cedric@ninja-squad.com>
Co-authored-by: Charles Lyding <19598772+clydin@users.noreply.github.com>
Co-authored-by: Dave Shevitz <dshevitz@google.com>
Co-authored-by: Doug Parker <dgp1130@users.noreply.github.com>
Co-authored-by: Dylan Hunn <dylhunn@gmail.com>
Co-authored-by: Emma Twersky <emmatwersky@google.com>
Co-authored-by: George Kalpakas <kalpakas.g@gmail.com>
Co-authored-by: Igor Minar <iminar@google.com>
Co-authored-by: Jeremy Elbourn <jelbourn@google.com>
Co-authored-by: Jessica Janiuk <jessicajaniuk@google.com>
Co-authored-by: JiaLiPassion <JiaLi.Passion@gmail.com>
Co-authored-by: Joey Perrott <josephperrott@gmail.com>
Co-authored-by: Joost Koehoorn <joost.koehoorn@gmail.com>
Co-authored-by: Kristiyan Kostadinov <crisbeto@abv.bg>
Co-authored-by: Madleina Scheidegger <mscheid@google.com>
Co-authored-by: Mark Thompson <2554588+MarkTechson@users.noreply.github.com>
Co-authored-by: Minko Gechev <mgechev@gmail.com>
Co-authored-by: Paul Gschwendtner <paulgschwendtner@gmail.com>
Co-authored-by: Pawel Kozlowski <pkozlowski.opensource@gmail.com>
Co-authored-by: Pete Bacon Darwin <pete@bacondarwin.com>
Co-authored-by: Wagner Maciel <wagnermaciel@google.com>
Co-authored-by: Zach Arend <zachzach@google.com>

PR Close #43884
2021-11-23 21:10:06 +00:00
Pete Bacon Darwin c315878910 refactor: simplify the LOCALE_ID provider (#43913)
Other parts of the intialization process are responsible for passing the locale id to ivy, so it does not need to happen in the provider factory. E.g. `PlatformRef.bootstrapModule()` and `R3TestBedCompiler.finalize()`.

PR Close #43913
2021-10-28 11:19:12 -07:00
Pete Bacon Darwin 70d3805fd6 refactor: remove ɵloc and related code (#43913)
This code is not used in ivy - and probably was not being used
in View Engine either.

PR Close #43913
2021-10-28 11:19:12 -07:00
krzysztof-grzybek 45e4e60fd6 fix(router): reuse route strategy fix (#43791)
Currently, it's impossible to cache (detach/attach) parent route without caching child routes.
This produces a bug, when navigating from a/b to c, then to a/d, where a route is cached.
On the last navigation, we incorrectly restore a/b route instead of a/d.
This change introduces new behavior: if the route should be detached/attached,
we do so, but we check also child routes recursively.

Fixes #17333

PR Close #43791
2021-10-21 16:28:03 +00:00
Joey Perrott 78e52b4799 build: remove ivy-aot bazel tag (#43862)
Remove the ivy-aot bazel tag from usage as it served a duplicate purpose as ivy-only which is now removed as both are
unneeded with Ivy as the default compiler used.

PR Close #43862
2021-10-19 10:06:55 -07:00
Joey Perrott aef63e7ae5 build: remove "ivy-only" bazel tag (#43862)
Because all actions are assumed to be running on Ivy, things which only work on Ivy should not be marked as
Ivy only.

PR Close #43862
2021-10-19 10:06:55 -07:00
Andrew Scott 892158f769 Revert "refactor(router): clean up internal hooks (#43804)" (#43845)
This reverts commit 5cc51880db.

PR Close #43845
2021-10-14 14:43:41 -07:00
Andrew Scott 5cc51880db refactor(router): clean up internal hooks (#43804)
* beforePreactivation hook is unused
* The only place that uses afterPreactivation does not use the arguments

Not to say we won't want to provide hooks similar to this in the future,
but the current state is over-engineered for what it's being used for.

PR Close #43804
2021-10-14 10:04:01 -07:00
Paul Gschwendtner 6e7ef195a5 test: update size goldens to reflect new ES2020 terser v5 output (#43431)
For APF v13, terser has been updated to v5, and the prodmode output
has changed from ES2015 to ES2020. This results in some changes in
the symbol extractor test. Here are the two causes of changes:

* As said in the previous commit, Terser drops the initializer for
  variables which are set to `undefined`. We have updated the symbol
  extractor to always capture such declarations w/o initializer now.

  This means that a couple of declarations that a couple of new
  symbols are captured now. These previously didn't have an initializer
  even without Terser, and just didn't show up before.

* Terser changed its inline mechanism for functions that recursively
  call themselves. Such functions are no longer inlined and therefore
  show up in goldens now.

PR Close #43431
2021-10-01 18:28:42 +00:00
JoostK 361273fad5 refactor(router): remove support for loadChildren string syntax (#43591)
This commit removes the ability to configure lazy routes using a string
for `loadChildren`, together with the supporting classes to load an
`NgModuleFactory` at runtime.

BREAKING CHANGE:

It is no longer possible to use `Route.loadChildren` using a string
value. The following supporting classes were removed from
`@angular/core`:

- `NgModuleFactoryLoader`
- `SystemJsNgModuleFactoryLoader`

The `@angular/router` package no longer exports these symbols:

- `SpyNgModuleFactoryLoader`
- `DeprecatedLoadChildren`

The signature of the `setupTestingRouter` function from
`@angular/core/testing` has been changed to drop its `NgModuleFactoryLoader`
parameter, as an argument for that parameter can no longer be created.

PR Close #43591
2021-09-29 14:45:18 -07:00
Andrew Scott ccb09b4558 fix(router): null/undefined routerLink should disable navigation (#43087)
The current behavior of `routerLink` for `null` and `undefined` inputs is to treat
the input the same as `[]`. This creates several unresolvable issues with
correctly disabling the links because `commands = []` does _not_ behave the same
as disabling a link. Instead, it navigates to the current page, but will also
clear any fragment and/or query params.

The new behavior of the `routerLink` input will be to completely disable navigation
for `null` and `undefined` inputs. For HTML Anchor elements, this will also mean
removing the `href` attribute.

Fixes #21457
Fixes #13980
Fixes #31154

BREAKING CHANGE:
Previously `null` and `undefined` inputs for `routerLink` were
equaivalent to empty string and there was no way to disable the link's
navigation.
In addition, the `href` is changed from a property `HostBinding()` to an
attribute binding (`HostBinding('attr.href')`). The effect of this
change is that `DebugElement.properties['href']` will now return the
`href` value returned by the native element which will be the full URL
rather than the internal value of the `RouterLink` `href` property.

PR Close #43087
2021-08-20 12:51:09 -07:00
Andrew Scott 286b2807de fix(router): eagerly update internal state on browser-triggered navigations (#43102)
The management of `browserUrlTree` currently has several problems with
correctly tracking the actual state of the browser.

This change makes the Router eagerly update the `browserUrlTree` when
handling navigations triggered by browser events (i.e., not 'imperative'). This
is because with those types of navigations, the browser URL bar is
_already_ updated. If we do not update the internal tracking of the
`browserUrlTree`, we will be out of sync with the real URL if the
navigation is rejected.

It would be best if we could remove `browserUrlTree` completely, but doing that
would require a lot more investigation and is blocked by #27059 because
the SpyLocation used in tests does not emulate real browser behavior.

fixes #43101

PR Close #43102
2021-08-16 09:33:23 -07:00
Arthur Ming 1067be7ab8 build: update all symbol extractor (#42581)
update all symbol extractor by running 'yarn symbol-extractor:update' script

PR Close #42581
2021-07-12 12:00:19 -07:00
JoostK 96624b71a7 fix(platform-browser): prevent memory leak of style nodes if shadow DOM encapsulation is used (#42005)
Prior to this change, any inserted `<style>` nodes into shadow dom trees would be retained
in memory, even after the shadow dom tree has been removed. This commit fixes the memory
leak by tracking the inserted `<style>` nodes per host element, such that removal of the
host element also releases the style nodes.

Fixes #36655

PR Close #42005
2021-05-10 16:12:19 -04:00
Kristiyan Kostadinov 2dd96e08ae Revert "perf(core): avoid storing LView in __ngContext__ (#41358)" (#41901)
This reverts commit 18b33e79d3.

PR Close #41901
2021-04-30 14:12:52 -07:00
Kristiyan Kostadinov 18b33e79d3 perf(core): avoid storing LView in __ngContext__ (#41358)
Currently we save a reference to an `LView` on most DOM nodes created by Angular either by saving
the `LView` directly in the `__ngContext__` or by saving the `LContext` which has a reference to
the `LView`. This can be a problem if the DOM node is retained in memory, because the `LView` has
references to all of the child nodes of the view, as well as other internal data structures.

Previously we tried to resolve the issue by clearing the `__ngContext__` when a node is removed
(see https://github.com/angular/angular/pull/36011), but we decided not to proceeed, because it can
slow down destruction due to a megamorphic write.

These changes aim to address the issue while reducing the performance impact by assigning a unique
ID when an `LView` is created and adding it to `__ngContext__`. All active views are tracked in
a map where their unique ID is used as the key. We don't need to worry about leaks within that map,
because `LView`s are an internal data structure and we have complete control over when they are
created and destroyed.

Fixes #41047.

PR Close #41358
2021-04-26 09:31:41 -07:00
Alan Agius ed7d288364 build: update several dependencies (#41434)
With this change we update several dependencies to avoid Renovate creating a lot of PRs during onboarding. We also remove yarn workspaces as after further analysis these are not needed.

Certain dependencies such as `@octokit/rest`, `remark` and `@babel/*` have not been updated as they require a decent amount of work to update, and it's best to leave them for a seperate PR.

PR Close #41434
2021-04-12 16:46:29 -07:00
Kristiyan Kostadinov d641542587 refactor(core): remove deprecated rxjs signature usage in event emitter and make more minifier-friendly (#41450)
* We had a usage of `Observable.subscribe` that uses the deprecated signature with 3 arguments. These changes switch to the non-deprecated version that passes in an `Observer`.
* Avoids always creating a `complete` callback since it isn't required.
* We were repeating all of the internal callbacks twice: once for sync and once for async. These changes move them out into variables so that they're more minifier-friendly. The savings aren't huge (~100 bytes minified), but it doesn't add any maintenance effort on our end so I decided to add it.

PR Close #41450
2021-04-07 11:53:09 -07:00
Alan Agius e0028e5741 fix(platform-browser): configure XhrFactory to use BrowserXhr (#41313)
With this change we move `XhrFactory` to the root entrypoint of `@angular/commmon`, this is needed so that we can configure `XhrFactory` DI token at a platform level, and not add a dependency  between `@angular/platform-browser` and `@angular/common/http`.

Currently, when using `HttpClientModule` in a child module on the server, `ReferenceError: XMLHttpRequest is not defined` is being thrown because the child module has its own Injector and causes `XhrFactory` provider to be configured to use `BrowserXhr`.
Therefore, we should configure the `XhrFactory` at a platform level similar to other Browser specific providers.

BREAKING CHANGE:

`XhrFactory` has been moved from `@angular/common/http` to `@angular/common`.

**Before**
```ts
import {XhrFactory} from '@angular/common/http';
```

**After**
```ts
import {XhrFactory} from '@angular/common';
```

Closes #41311

PR Close #41313
2021-03-29 15:14:16 -07:00
cexbrayat e12d9dec64 fix(core): remove duplicated EMPTY_ARRAY constant (#40991)
The codebase currently contains several `EMPTY_ARRAY` constants,
and they can end up in the bundle of an application.
A recent commit 6fbe219 tipped us off
as it introduced several `noop` occurrences in the golden symbol files.
After investigating with @petebacondarwin,
we decided to remove the duplicated symbols.

This probably shaves only a few bytes,
but this commit removes the duplicated functions,
by always using the one in `core/src/utils/empty`.

PR Close #40991
2021-03-01 09:00:43 -08:00
Andrew Scott 6c05c80f19 feat(router): Add more find-tuned control in routerLinkActiveOptions (#40303)
This commit adds more configurability to the `Router#isActive` method
and `RouterLinkActive#routerLinkActiveOptions`.
It allows tuning individual match options for query params and the url
tree, which were either both partial or both exact matches in the past.
Additionally, it also allows matching against the fragment and matrix
parameters.

fixes #13205

BREAKING CHANGE:
The type of the `RouterLinkActive.routerLinkActiveOptions` input was
expanded to allow more fine-tuned control. Code that previously read
this property may need to be updated to account for the new type.

PR Close #40303
2021-02-24 15:32:05 -08:00
vthinkxie ca17ac523c feat(core): support APP_INITIALIZER work with observable (#33222)
This commit adds support for Observables that now can be used as a part of APP_INITIALIZER. Previously, only
Primises were supported.

Closes #15088.

PR Close #33222
2021-02-22 08:41:49 -08:00
stsogoo 0654c05c41 fix(core): properly move embedded views of dynamic component's projectable nodes (#37167)
This commit fixes the issue of the ASSERTION ERROR issue when
a projected node(RNode) inside an array is checked against the types
of TNodeType.Element, TNodeType.Container, TNodeType.ElementContainer,
TNodeType.IcuContainer, TNodeType.Projection. As it's inside an array,
it doesn't fall into any of those types, as a result, it throws
the ASSERTION ERROR.

PR Close #37120

PR Close #37167
2021-02-10 11:03:06 -08:00
Misko Hevery 88f8ddd3d3 Revert "fix(core): remove duplicated EMPTY_ARRAY constant (#40587)"
This reverts commit 34aa9c3531.
2021-01-28 14:35:03 -08:00
cexbrayat 34aa9c3531 fix(core): remove duplicated EMPTY_ARRAY constant (#40587)
The codebase currently contains several `EMPTY_ARRAY` constants,
and they can end up in the bundle of an application.
A recent commit 6fbe219 tipped us off
as it introduced several `noop` occurrences in the golden symbol files.
After investigating with @petebacondarwin,
we decided to remove the duplicated symbols.

This probably shaves only a few bytes,
but this commit removes the duplicated functions,
by always using the one in `core/src/utils/empty`.

PR Close #40587
2021-01-28 08:55:53 -08:00
Misko Hevery e32b6256ce fix(core): QueryList should not fire changes if the underlying list did not change. (#40091)
Previous implementation would fire changes `QueryList.changes.subscribe`
whenever the `QueryList` was recomputed. This resulted in artificially
high number of change notifications, as it is possible that recomputing
`QueryList` results in the same list. When the `QueryList` gets recomputed
is an implementation detail and it should not be the thing which determines
how often change event should fire.

This change introduces a new `emitDistinctChangesOnly` option for
`ContentChildren` and `ViewChildren`.

```
export class QueryCompWithStrictChangeEmitParent {
  @ContentChildren('foo', {
    // This option will become the default in the future
    emitDistinctChangesOnly: true,
  })
  foos!: QueryList<any>;
}
```

PR Close #40091
2021-01-14 13:55:02 -08:00
Andrew Kushnir 6cff877f4f perf(core): make DI decorators tree-shakable when used for useFactory deps config (#40145)
This commit updates the logic that calculates `useFactory` function arguments to avoid relying on `instanceof`
checks (thus always retaining symbols) and relies on flags that DI decorators contain (as a monkey-patched property).

Another perf benefit is having less megamorphic reads while calculating args for the `useFactory` call: we used to
check whether a token has `ngMetadataName` property 4 times (in worst case), now we have just 1 megamorphic read in
all cases.

Closes #40143.

PR Close #40145
2021-01-13 14:08:45 -08:00
Martin Sikora 9105005192 refactor(router): refactor and simplify router RxJS chains (#40290)
Refactor and simplifiy RxJS usage in the router package
in order to reduce its size and increase performance.

PR Close #40290
2021-01-11 15:30:55 -08:00
Andrew Scott e43f7e26fe fix(router): apply redirects should match named outlets with empty path parents (#40029)
There are two parts to this commit:
1. Revert the changes from #38379. This change had an incomplete view of
how things worked and also diverged the implementations of
`applyRedirects` and `recognize` even more.
2. Apply the fixes from the `recognize` algorithm to ensure that named
outlets with empty path parents can be matched. This change also passes
all the tests that were added in #38379 with the added benefit of being
a more complete fix that stays in-line with the `recognize` algorithm.
This was made possible by using the same approach for `split` by
always creating segments for empty path matches (previously, this was
only done in `applyRedirects` if there was a `redirectTo` value). At the
end of the expansions, we need to squash all empty segments so that
serializing the final `UrlTree` returns the same result as before.

Fixes #39952
Fixes #10726
Closes #30410

PR Close #40029
2021-01-05 12:43:47 -08:00
Andrew Kushnir 3735633bb0 fix(core): take @Host into account while processing useFactory arguments (#40122)
DI providers can be defined via `useFactory` function, which may have arguments configured via `deps` array.
The `deps` array may contain DI flags represented by DI decorators (such as `@Self`, `@SkipSelf`, etc). Prior to this
commit, having the `@Host` decorator in `deps` array resulted in runtime error in Ivy. The problem was that the `@Host`
decorator was not taken into account while `useFactory` argument list was constructed, the `@Host` decorator was
treated as a token that should be looked up.

This commit updates the logic which prepares `useFactory` arguments to recognize the `@Host` decorator.

PR Close #40122
2021-01-05 10:14:25 -08:00
Misko Hevery fc1cd07eb0 fix(core): Call onDestroy in production mode as well (#40120)
PR #39876 introduced an error where the `onDestroy` of `ComponentRef`
would only get called if `ngDevMode` was set to true. This was because
in dev mode we would freeze `TCleanup` to verify that no more
static cleanup would get added to `TCleanup` array. This ensured
that `TCleanup` was always present in dev mode. In production the
`TCleanup` would get created only when needed. The resulting cleanup
code was incorrectly indented and would only run if `TCleanup` was
present causing this issue.

Fix #40105

PR Close #40120
2020-12-22 08:02:27 -08:00
Misko Hevery 5fc45082ca fix(core): Support extending differs from root NgModule (#39981)
Differs tries to inject parent differ in order to support extending.
This does not work in the 'root' injector as the provider overrides the
default injector. The fix is to just assume standard set of providers
and extend those instead.

PR close #25015
Issue close #11309 `Can't extend IterableDiffers`
Issue close #18554 `IterableDiffers.extend is not AOT compatible`
  (This is fixed because we no longer have an arrow function in the
  factory but a proper function which can be imported.)

PR Close #39981
2020-12-07 09:51:27 -08:00
arturovt df27027ecb fix(core): remove application from the testability registry when the root view is removed (#39876)
In the new behavior Angular removes applications from the testability registry when the
root view gets destroyed. This eliminates a memory leak, because before that the
TestabilityRegistry holds references to HTML elements, thus they cannot be GCed.

PR Close #22106

PR Close #39876
2020-12-02 12:56:04 -08:00
cexbrayat 5fa767363d fix(router): remove duplicated getOutlet function (#39764)
The codebase currently contains two `getOutlet` functions,
and they can end up in the bundle of an application.
A recent commit 6fbe21941d tipped us off
as it introduced several `noop` occurrences in the golden symbol files.
After investigating with @petebacondarwin,
we decided to remove the duplicated functions.

This probably shaves only a few bytes,
but this commit removes the duplicated functions,
by always using the one in `router/src/utils/config`.

PR Close #39764
2020-11-20 08:31:14 -08:00
cexbrayat 066126ae2f fix(core): remove duplicated noop function (#39761)
The codebase currently contains several `noop` functions,
and they can end up in the bundle of an application.
A recent commit 6fbe21941d tipped us off
as it introduced several `noop` occurrences in the golden symbol files.
After investigating with @petebacondarwin,
we decided to remove the duplicated functions.

This probably shaves only a few bytes,
but this commit removes the duplicated functions,
by always using the one in `core/src/utils/noop`.

PR Close #39761
2020-11-19 12:14:12 -08:00
Egor 6fbe21941d refactor(core): Replace non-null assertion operator with property initialization (#39730)
Reuse the `noop` function from the common utilities

PR Close #39730
2020-11-18 09:14:41 -08:00
Misko Hevery e6ae0c5349 refactor(core): Remove circular dependency between LContainer and ViewRef. (#39621)
`LContainer` stores `ViewRef`s this is not quite right as it creates
circular dependency between the two types. Also `LContainer` should not
be aware of `ViewRef` which iv ViewEngine specific construct.

PR Close #39621
2020-11-16 09:12:46 -08:00
Misko Hevery 8574c3000e refactor(core): Cleanup non-standard Injector handling. (#39621)
Due to historical reasons `Injector.__NG_ELEMENT_ID__` was set to `-1`.
This changes it to be consistent with other `*Ref.__NG_ELEMENT_ID__`
constructs.

PR Close #39621
2020-11-16 09:12:46 -08:00
Misko Hevery 739d745eb5 refactor(core): Cleanup circular dependency between ViewEngine and Ivy ViewContainerRef. (#39621)
`ViewContainerRef` is declared in ViewEngine but it sub-classed in Ivy. This creates a circular
dependency between ViewEngine `ViewContainerRef` which needs to declare `__NG_ELEMENT_ID__` and
ivy factory which needs to create it. The workaround used to be to pass the `ViewContainerRef`
through stack but that created a very convoluted code. This refactoring simply bundles the
two files together and removes the stack workaround making the code simpler to follow.

PR Close #39621
2020-11-16 09:12:46 -08:00
Misko Hevery 453f196c4d refactor(core): Cleanup circular dependency between ViewEngine and Ivy TemplateRef. (#39621)
`TemplateRef` is declared in ViewEngine but it sub-classed in Ivy. This creates a circular
dependency between ViewEngine `TemplateRef` which needs to declare `__NG_ELEMENT_ID__` and
ivy factory which needs to create it. The workaround used to be to pass the `TemplateRef`
through stack but that created a very convoluted code. This refactoring simply bundles the
two files together and removes the stack workaround making the code simpler to follow.

PR Close #39621
2020-11-16 09:12:45 -08:00
Kristiyan Kostadinov b015d3e950 fix(core): not inserting ViewContainerRef nodes when inside root of a component (#39599)
When a `ViewContainerRef` is injected, we dynamically create a comment node next to the host
so that it can be used as an anchor point for inserting views. The comment node is inserted
through the `appendChild` helper from `node_manipulation.ts` in most cases.

The problem with using `appendChild` here is that it has some extra logic which doesn't return
a parent `RNode` if an element is at the root of a component. I __think__ that this is a performance
optimization which is used to avoid inserting an element in one place in the DOM and then
moving it a bit later when it is projected. This can break down in some cases when creating
a `ViewContainerRef` for a non-component node at the root of another component like the following:

```
<root>
  <div #viewContainerRef></div>
</root>
```

In this case the `#viewContainerRef` node is at the root of a component so we intentionally don't
insert it, but since its anchor element was created manually, it'll never be projected. This will
prevent any views added through the `ViewContainerRef` from being inserted into the DOM.

These changes resolve the issue by not going through `appendChild` at all when creating a comment
node for `ViewContainerRef`. This should work identically since `appendChild` doesn't really do
anything with the T structures anyway, it only uses them to reach the relevant DOM nodes.

Fixes #39556.

PR Close #39599
2020-11-12 11:37:00 -08:00
Jessica Janiuk 290ea57a93 fix(core): Access injected parent values using SelfSkip (#39464)
In ViewEngine, SelfSkip would navigate up the tree to get tokens from
the parent node, skipping the child. This restores that functionality in
Ivy. In ViewEngine, if a special token (e.g. ElementRef) was not found
in the NodeInjector tree, the ModuleInjector was also used to lookup
that token. While special tokens like ElementRef make sense only in a
context of a NodeInjector, we preserved ViewEngine logic for now to
avoid breaking changes.

We identified 4 scenarios related to @SkipSelf and special tokens where
ViewEngine behavior was incorrect and is likely due to bugs. In Ivy this
is implemented to provide a more intuitive API. The list of scenarios
can be found below.

1. When Injector is used in combination with @Host and @SkipSelf on the
first Component within a module and the injector is defined in the
module, ViewEngine will get the injector from the module. In Ivy, it
does not do this and throws instead.

2. When retrieving a @ViewContainerRef while @SkipSelf and @Host are
present, in ViewEngine, it throws an exception. In Ivy it returns the
host ViewContainerRef.

3. When retrieving a @ViewContainerRef on an embedded view and @SkipSelf
is present, in ViewEngine, the ref is null. In Ivy it returns the parent
ViewContainerRef.

4. When utilizing viewProviders and providers, a child component that is
nested within a parent component that has @SkipSelf on a viewProvider
value, if that provider is provided by the parent component's
viewProviders and providers, ViewEngine will return that parent's
viewProviders value, which violates how viewProviders' visibility should
work. In Ivy, it retrieves the value from providers, as it should.

These discrepancies all behave as they should in Ivy and are likely bugs
in ViewEngine.

PR Close #39464
2020-11-06 09:23:45 -08:00
Andrew Scott ff7a62ee21 refactor(router): Small refactor of createUrlTree and extra tests (#39456)
This commit has a small refactor of some methods in create_url_tree.ts
and adds some test cases, including two that will fail at the moment but
should pass. A follow-up commit will make use of the refactorings to fix
the test with minimal changes.

PR Close #39456
2020-10-30 16:23:03 -07:00
twerske e6ca3d3841 refactor(core): add top 10 runtime error codes (#39188)
adds RuntimeError and code enum to improve debugging experience
refactor ExpressionChangedAfterItHasBeenCheckedError to code NG0100
refactor CyclicDependency to code NG0200
refactor No Provider to code NG0201
refactor MultipleComponentsMatch to code NG0300
refactor ExportNotFound to code NG0301
refactor PipeNotFound to code NG0302
refactor BindingNotKnown to code NG0303
refactor NotKnownElement to code NG0304

PR Close #39188
2020-10-28 10:05:01 -07:00
twerske dcafac1b8f refactor(core): group provider and circular errors (#39251)
group together similar error messages as part of error code efforts
ProviderNotFound & NodeInjector grouped into throwProviderNotFoundError
Cyclic dependency errors grouped into throwCyclicDependencyError

PR Close #39251
2020-10-22 13:42:34 -07:00
Misko Hevery 68d4de6770 refactor(core): Replace ExpandoInstructions with HostBindingOpCodes (#39301)
The `ExpandoInstructions` was unnecessarily convoluted way to solve the
problem of calling the `HostBindingFunction`s on components and
directives. The code was complicated and hard to fallow.

The replacement is a simplified way to achieve the same thing, which
is also more efficient in space and speed.

PR Close #39301
2020-10-22 09:35:48 -07:00
Misko Hevery ca11ef2376 fix(core): Store ICU state in LView rather than in TView (#39233)
Before this refactoring/fix the ICU would store the current selected
index in `TView`. This is incorrect, since if ICU is in `ngFor` it will
cause issues in some circumstances. This refactoring properly moves the
state to `LView`.

closes #37021
closes #38144
closes #38073

PR Close #39233
2020-10-21 18:33:00 -07:00