Commit Graph

7573 Commits

Author SHA1 Message Date
Alex Rickabaugh 4538bd6c96 refactor(compiler-cli): extract xi18n utility functions to a separate file (#42485)
This commit moves some xi18n-related functions in the View Engine
ng.Program into a new file. This is necessary in order to depend on them
from the Ivy ng.Program while avoiding a cycle.

PR Close #42485
2021-06-21 16:50:28 +00:00
Paul Gschwendtner d77f560403 build: update to typescript 4.3.4 (#42600)
Updates to TypeScript 4.3.4 which contains a fix for a printer
regression that caused unexpected JavaScript output with our
compiler transforms.

See: https://github.com/microsoft/TypeScript/pull/44070.
Updates to TypeScript 4.3.4 which contains a fix for a printer

PR Close #42600
2021-06-21 16:42:49 +00:00
Paul Gschwendtner b8eb24e0fb Revert "test: update compiler-cli compliance goldens due to TS 4.3 emit format regression (#42022)" (#42600)
This reverts commit 71e14a71f5.

PR Close #42600
2021-06-21 16:42:48 +00:00
Pete Bacon Darwin 983c540191 docs: fix pipe params (#42593)
The addition of overloads to some of the number pipes caused
the documentation to lose the parameter descriptions.

This change fixes that by moving the JSDOC block in from of the
primary method signature, rather than the first overload.

Fixes #42590

PR Close #42593
2021-06-17 23:03:08 +00:00
Kristiyan Kostadinov 07c1ddc487 fix(router): error if module is destroyed before location is initialized (#42560)
This is something I ran into while working on a fix for the `TestBed` module teardown behavior for #18831. In the `RouterInitializer.appInitializer` we have a callback to the `LOCATION_INITIALIZED` which has to do some DI lookups. The problem is that if the module is destroyed before the location promise resolves, the `Injector.get` calls will fail. This is unlikely to happen in a real app, but it'll show up in unit tests once the test module teardown behavior is fixed.

PR Close #42560
2021-06-17 18:11:53 +00:00
Kristiyan Kostadinov 873229f24b feat(core): add opt-in test module teardown configuration (#42566)
We currently have two long-standing issues related to how `TestBed` tests are torn down:
1. The dynamically-created test module isn't going to be destroyed, preventing the `ngOnDestroy` hooks on providers from running and keeping the component `style` nodes in the DOM.
2. The test root elements aren't going to be removed from the DOM. Instead, they will be removed whenever another test component is created.

By themselves, these issues are easy to resolve, but given how long they've been around, there are a lot of unit tests out there that depend on the broken behavior.

These changes address the issues by introducing APIs that allow users to opt into the correct test teardown behavior either at the application level via `TestBed.initTestEnvironment` or the test suite level via `TestBed.configureTestingModule`.

At the moment, the new teardown behavior is opt-in, but the idea is that we'll eventually make it opt-out before removing the configuration altogether.

Fixes #18831.

PR Close #42566
2021-06-17 18:03:47 +00:00
Marius Bethge f3a79878af docs(forms): correct sample code for FormArray.reset (#42477)
Remove unexpected this, correct output comment for arr.value and correct parameter type for FormArray.get().

PR Close #42477
2021-06-16 14:01:55 -07:00
Alex Rickabaugh 2d1347b2ce Revert "refactor: remove checked-in locale files (#42230)" (#42583)
This reverts commit 5822771946.

PR Close #42583
2021-06-16 09:49:38 -07:00
Alex Rickabaugh ec6dc78f1d Revert "build: convert CLDR locale extraction from Gulp to Bazel tool (#42230)" (#42583)
This reverts commit 1eaeb23c75.

PR Close #42583
2021-06-16 09:49:37 -07:00
Alex Rickabaugh 877cde8897 Revert "build: wire up new CLDR generation tool within Bazel (#42230)" (#42583)
This reverts commit 4957da82d3.

PR Close #42583
2021-06-16 09:49:37 -07:00
Alex Rickabaugh 76484f95c3 Revert "build: add documentation for `generate-locales-tool` (#42230)" (#42583)
This reverts commit d4c880b467.

PR Close #42583
2021-06-16 09:49:37 -07:00
Alex Rickabaugh 2cd1c6c2bd Revert "build: simplify generation of closure locale file (#42230)" (#42583)
This reverts commit 8f24d71142.

PR Close #42583
2021-06-16 09:49:37 -07:00
Alex Rickabaugh d6cca3cf9d Revert "build: generate alias locale data for closure locale (#42230)" (#42583)
This reverts commit 044e0229bd.

PR Close #42583
2021-06-16 09:49:37 -07:00
Andrew Scott 4001e9d808 fix(language-service): 'go to defininition' for objects defined in template (#42559)
Previously, the "go to definition" action did no account for the
possibility that something may actually be defined in a template. This
change updates the logic in the definition builder to convert any
results that are locations in template typecheck files to their
corresponding locations in the template.

PR Close #42559
2021-06-14 14:13:48 -07:00
Andrew Scott 228beeabd1 fix(language-service): Use last child end span for parent without close tag (#42554)
Unclosed element tags are not assigned an `endSourceSpan` by the parser.
As a result, the visitor which determines the target node at a position
for the language service was unable to determine that a given position
was inside an unclosed parent. This happens because we update the
`endSourceSpan` of template/element nodes to be the end tag (and there
is not one for unclosed tags). Consequently, the visitor then cannot
match a position to any child node location.

This change updates the visitor logic to check if there are any
`children` of a template/element node and updates the end span to be the
end span of the last child. This allows our `isWithin` logic to identify
that a child position is within the unclosed parent.

Addresses one of the issues found during investigation of https://github.com/angular/vscode-ng-language-service/issues/1399

PR Close #42554
2021-06-14 14:10:46 -07:00
Andrew Scott 8c1e0e6ad0 fix(compiler): always match close tag to the nearest open element (#42554)
This commit updates the parser logic to continue to try to match an end
tag to an unclosed open tag on the stack. Previously, it would only
push an error to the list and stop looking at unclosed elements.

For example, the invalid HTML of `<li><div></li>`, has an unclosed
element stack of [`li`, `div`] when it encounters the close `li` tag.
We compare against the previously unclosed tag `div` and see that this is
unexpected. Instead of simply giving up here, we continue to move up the
unclosed tags until we find a match (if there is one).

PR Close #42554
2021-06-14 14:10:46 -07:00
Paul Gschwendtner 044e0229bd build: generate alias locale data for closure locale (#42230)
Within Google, closure compiler is used for dealing with translations.
We generate a closure-compatible locale file that allows for
registration within Angular, so that Closure i18n works well together
with Angular applications. Closure compiler does not limit its
locales to BCP47-canonical locale identifiers. This commit updates
the generation logic so that we also support deprecated (but aliased)
locale identifiers, or other aliases which are likely used within
Closure. We use CLDR's alias supplemental data for this. It instructs
us to alias `iw` to `he` for example. `iw` is still supported in Closure.

Note that we do not manually extract all locales supported in Closure;
instead we only support the CLDR canonical locales (as done before) +
common aliases that CLDR provides data for. We are not aware of other
locale aliases within Closure that wouldn't be part of the CLDR aliases.
If there would be, then Angular/Closure would fail accordingly.

PR Close #42230
2021-06-14 09:59:46 -07:00
Paul Gschwendtner 8f24d71142 build: simplify generation of closure locale file (#42230)
In the past, the closure file has been generated so that all individual
locale files were imported individually. This resulted in a huge
slow-down in g3 due to the large amount of imports.

With 90bd984ff7 this changed so that we
inline the locale data for the g3 closure locale file. Also the file
only contained data for locales being supported by Closure. For this a
list of locales has been extracted from Closure Compiler, as well as a
list of locale aliases.

This logic is prone to CLDR version updates, and also broke as part of
the Gulp -> Bazel migration where this logic has been slightly modified
but caused issues in G3. e.g. a locale `zh-Hant` was requested in g3,
but the locale data had the name of the alias locale that provided the
data at index zero (which represents the locale name). Note that the
locale names at index zero always could differentiate from the requested
`goog.LOCALE` due to the aliasing logic. This just didn't come up before.

We simplify this logic by generating a `goog.LOCALE` case for all
locales CLDR provides data for. We don't need to bother about aliasing
because with the refactorings to the CLDR generation tool, all locales
are built (which also captures the aliases), and we can generate the locale
file on the fly (which has not been done before).

PR Close #42230
2021-06-14 09:59:46 -07:00
Paul Gschwendtner d4c880b467 build: add documentation for `generate-locales-tool` (#42230)
The CLDR extraction tool has been reworked to run as part of Bazel.
This adds a initial readme explaining what the tool generates. It's
far from a detailed description but it can serve as foundation for more
detailed explanations.

PR Close #42230
2021-06-14 09:59:46 -07:00
Paul Gschwendtner 4957da82d3 build: wire up new CLDR generation tool within Bazel (#42230)
Introduces a few Starlark macros for running the new Bazel
CLDR generation tool. Wires up the new tool so that locales
are generated properly. Also updates the existing
`closure-locale` file to match the new output generated by the Bazel tool.

This commit also re-adds a few locale files that aren't
generated by CLDR 37, but have been accidentally left in
the repository as the Gulp script never removed old locales
from previous CLDR versions. This problem is solved with the
Bazel generation of locale files, but for now we re-add these
old CLDR 33 locale files to not break developers relying on these
(even though the locale data indicies are incorrect; but there might
be users accessing the data directly)

PR Close #42230
2021-06-14 09:59:46 -07:00
Paul Gschwendtner 1eaeb23c75 build: convert CLDR locale extraction from Gulp to Bazel tool (#42230)
Converts the CLDR locale extraction script to a Bazel tool.
This allows us to generate locale files within Bazel, so that
locales don't need to live as sources within the repo. Also
it allows us to get rid of the legacy Gulp tooling.

The migration of the Gulp script to a Bazel tool involved the
following things:

  1. Basic conversion of the `extract.js` script to TypeScript.
     This mostly was about adding explicit types. e.g. adding `locale:
     string` or `localeData: CldrStatic`.

  2. Split-up into separate files. Instead of keeping the large
     `extract.js` file, the tool has been split into separate files.
     The logic remains the same, just that code is more readable and
     maintainable.

  3. Introduction of a new `index.ts` file that is the entry-point
     for the Bazel tool. Previously the Gulp tool just generated
     all locale files, the default locale and base currency files
     at once. The new entry-point accepts a mode to be passed as
     first process argument. based on that argument, either locales
     are generated into a specified directory, or the default locale,
     base currencies or closure file is generated.

     This allows us to generate files with a Bazel genrule where
     we simply run the tool and specify the outputs. Note: It's
     necessary to have multiple modes because files live in separate
     locations. e.g. the default locale in `@angular/core`, but the
     rest in `@angular/common`.

  4. Removal of the `cldr-data-downloader` and custom CLDR resolution
     logic. Within Bazel we cannot run a downloader using network.

     We switch this to something more Bazel idiomatic with better
     caching. For this a new repository rule is introduced that
     downloads the CLDR JSON repository and extracts it. Within
     that rule we determine the supported locales so that they
     can be used to pre-declare outputs (for the locales) within
     Bazel analysis phase. This allows us to add the generated locale
     files to a `ts_library` (which we want to have for better testing,
     and consistent JS transpilation).

     Note that the removal of `cldr-data-downloader` also requires us to
     add logic for detecting locales without data. The CLDR data
     downloader overwrote the `availableLocales.json` file with a file
     that only lists locales that CLDR provides data for. We use the
     official `availableLocales` file CLDR provides, but filter out
     locales for which no data is available. This is needed until we
     update to CLDR 39 where data is available for all such locales
     listed in `availableLocales.json`.

PR Close #42230
2021-06-14 09:59:46 -07:00
Paul Gschwendtner 5822771946 refactor: remove checked-in locale files (#42230)
This is a pre-refactor commit allowing us to move
the CLDR locale generation to Bazel where files would
no longer be checked-in, except for the `closure-locale`
file that is synced into Google3.

PR Close #42230
2021-06-14 09:59:46 -07:00
Dylan Hunn 7180ec9e7c fix(forms): changes to status not always being emitted to statusChanges observable for async validators. (#42553)
When a FormControl, FormArray, or FormGroup is first constructed, if an async validator is attached, the `statusChanges` observable should receive a message when the validator complete (i.e. pending -> valid/invalid). If the validator was provided as part of the constructor options, it was not fired at construction time, which is fixed in this PR.

Fixes #35309.

PR Close #42553
2021-06-14 09:57:57 -07:00
Ahmed Ayed efb440eb2f refactor(router): compute correct history restoration when navigation is cancelled (#38884)
We can’t determine whether the user actually meant the `back` or
the `forward` using the popstate event (triggered by a browser
back/forward)
so we instead need to store information on the state and compute the
distance the user is traveling withing the browser history.
So by using the `History#go` method,
we can bring the user back to the page where he is supposed to be after
performing the action.

implementation for #13586

PR Close #38884
2021-06-10 14:09:21 -07:00
JiaLiPassion 299f92c3b6 fix(zone.js): only one listener should also re-throw an error correctly (#41868)
Close #41867

In the previous commit https://github.com/angular/angular/pull/41562#issuecomment-822696973,
the error thrown in the event listener will be caught and re-thrown, but there is a bug
in the commit, if there is only one listener for the specified event name, the error
will not be re-thrown, so this commit fixes the issue and make sure the error is re-thrown.

PR Close #41868
2021-06-10 09:24:03 -07:00
JoostK 22bda2226b fix(compiler-cli): prevent prior compilations from being retained in watch builds (#42537)
In watch builds, the compiler attempts to reuse as much information from
a prior compilation as possible. To accomplish this, it keeps a
reference to the most recently succeeded `TraitCompiler`, which contains
all analysis data for the program. However, `TraitCompiler` has an
internal reference to an `IncrementalBuild`, which is itself built on
top of its prior state. Consequently, all prior compilations continued
to be referenced, preventing garbage collection from cleaning up these
instances.

This commit changes the `AnalyzedIncrementalState` to no longer retain
a `TraitCompiler` instance, but only the analysis data it contains. This
breaks the retainer path to the prior incremental state, allowing it to
be garbage collected.

PR Close #42537
2021-06-09 16:10:04 -07:00
Igor Minar 3961b3c360 fix(core): ensure that autoRegisterModuleById registration in ɵɵdefineNgModule is not DCE-ed by closure (#42529)
Previously the autoRegisterModuleById registration was marked with noSideEffects wrapper to ensure that we don't end up retaining all NgModules.

However the return value was not referenced by anything, so closure compiler removed it because it determined that this code has no side effects and is not referenced by anyone.

This issue affects apps that use Closure Compiler and also rely on https://angular.io/api/core/getModuleFactory to retrieve factories by ID. This combination is used heavily in google3, especially in Pantheon.

Fixes b/188453434

PR Close #42529
2021-06-09 12:13:23 -07:00
Andrew Scott 536c3738ba docs: clarify onSameUrlNavigation behavior (#42275)
`onSameUrlNavigation` only affects whether the Angular Router
processes the URL and runs it through the navigation pipeline,
retriggering redirects, guards, and resolvers. The name `reload` is a
little confusing because it does _not_ reload the component. Developers
_also_ need to implement a custom `RouteReuseStrategy` to trigger a
component reload on same URL navigation.

Fixes #21115

PR Close #42275
2021-06-09 09:45:25 -07:00
Renovate Bot e1a80d4b24 build: update dependency mocha to v9 (#42514)
PR Close #42514
2021-06-08 15:26:44 -07:00
Renovate Bot 230f0c41b7 build: lock file maintenance (#42499)
PR Close #42499
2021-06-08 15:25:59 -07:00
Dylan Hunn 34ce635e3a feat(forms): undo revert and add ng-submitted class to forms that have been submitted. (#42132) (#42132)
As previously discussed in pull/31070 and issues/30486, this would be useful because it is often desirable to apply styles to fields that are both `ng-invalid` and `ng-pristine` after the first attempt at form submission, but Angular does not provide any simple way to do this (although evidently Angularjs did). This will now be possible with a descendant selector such as `.ng-submitted .ng-invalid`.

In this implementation, the directive that sets control status classes on forms and formGroups has its set of statuses widened to include `ng-submitted`. Then, in the event that `is('submitted')` is invoked, the `submitted` property of the control container is returned iff it exists. This is preferred over checking whether the container is a `Form` or `FormGroup` directly to avoid reflecting on those classes.

Closes #30486.

PR Close #42132.

This reverts commit 00b1444d12, undoing the rollback of this change.

PR Close #42132
2021-06-08 14:02:29 -07:00
anups1 5c0541f351 docs: fix issue 24571 in ngOnChanges (#42517)
fix issue #24571 in ngOnChanges doc

PR Close #42517
2021-06-08 12:44:30 -07:00
Sam Severance c44ab4f6da fix(router): fix `serializeQueryParams` logic (#42481)
corrects a bug that resulted in query params such as
`[queryParams]={a: 1, b:[]}` being serialized as 'a=1&'
instead of 'a=1'

resolves #42445

PR Close #42481
2021-06-08 10:43:00 -07:00
Andrew Scott 171428ec98 docs: add selector documentation for `ViewChildren`, `ContentChildren`, and `ContentChild` (#42366)
These notes are copied from `ViewChild`. In addition, `ContentChildren` and `ViewChildren`
can specify multiple string selectors by separating each selector by a
comma.

fixes #21734

PR Close #42366
2021-06-08 10:42:21 -07:00
MrJithil 4cf442c879 docs: add links to examples for ComponentFactoryResolver (#42496)
Fixes #21705

PR Close #42496
2021-06-08 10:41:33 -07:00
Jessica Janiuk 66f49c2497 Revert "refactor: remove checked-in locale files" (#42521)
This reverts commit 3a83ec8020f96c293fdc316854e199281d329111.

PR Close #42521
2021-06-08 10:06:24 -07:00
Jessica Janiuk e3b709314f Revert "build: convert CLDR locale extraction from Gulp to Bazel tool" (#42521)
This reverts commit b9759522260cd57392e44fe63c5b17a9f102c101.

PR Close #42521
2021-06-08 10:06:24 -07:00
Jessica Janiuk cb59bdfebd Revert "build: wire up new CLDR generation tool within Bazel" (#42521)
This reverts commit 40bf84c89decea1de08e43936c9886a391b02173.

PR Close #42521
2021-06-08 10:06:24 -07:00
Jessica Janiuk cc55fd6e11 Revert "build: add documentation for `generate-locales-tool`" (#42521)
This reverts commit 12d84d041a2b27bec77f18d7e433b01f105ac784.

PR Close #42521
2021-06-08 10:06:24 -07:00
Jessica Janiuk fa4b0b31c0 Revert "build: simplify generation of closure locale file" (#42521)
This reverts commit 5fca35de0de8da24b8a046616404e74ecb4547b4.

PR Close #42521
2021-06-08 10:06:24 -07:00
Paul Gschwendtner b762820485 build: simplify generation of closure locale file (#42230)
In the past, the closure file has been generated so that all individual
locale files were imported individually. This resulted in a huge
slow-down in g3 due to the large amount of imports.

With 90bd984ff7 this changed so that we
inline the locale data for the g3 closure locale file. Also the file
only contained data for locales being supported by Closure. For this a
list of locales has been extracted from Closure Compiler, as well as a
list of locale aliases.

This logic is prone to CLDR version updates, and also broke as part of
the Gulp -> Bazel migration where this logic has been slightly modified
but caused issues in G3. e.g. a locale `zh-Hant` was requested in g3,
but the locale data had the name of the alias locale that provided the
data at index zero (which represents the locale name). Note that the
locale names at index zero always could differentiate from the requested
`goog.LOCALE` due to the aliasing logic. This just didn't come up before.

We simplify this logic by generating a `goog.LOCALE` case for all
locales CLDR provides data for. We don't need to bother about aliasing
because with the refactorings to the CLDR generation tool, all locales
are built (which also captures the aliases), and we can generate the locale
file on the fly (which has not been done before).

PR Close #42230
2021-06-07 15:34:39 -07:00
Paul Gschwendtner 7b288471bf build: add documentation for `generate-locales-tool` (#42230)
The CLDR extraction tool has been reworked to run as part of Bazel.
This adds a initial readme explaining what the tool generates. It's
far from a detailed description but it can serve as foundation for more
detailed explanations.

PR Close #42230
2021-06-07 15:34:39 -07:00
Paul Gschwendtner 4641fc71a2 build: wire up new CLDR generation tool within Bazel (#42230)
Introduces a few Starlark macros for running the new Bazel
CLDR generation tool. Wires up the new tool so that locales
are generated properly. Also updates the existing
`closure-locale` file to match the new output generated by the Bazel tool.

This commit also re-adds a few locale files that aren't
generated by CLDR 37, but have been accidentally left in
the repository as the Gulp script never removed old locales
from previous CLDR versions. This problem is solved with the
Bazel generation of locale files, but for now we re-add these
old CLDR 33 locale files to not break developers relying on these
(even though the locale data indicies are incorrect; but there might
be users accessing the data directly)

PR Close #42230
2021-06-07 15:34:38 -07:00
Paul Gschwendtner 1f75a657a8 build: convert CLDR locale extraction from Gulp to Bazel tool (#42230)
Converts the CLDR locale extraction script to a Bazel tool.
This allows us to generate locale files within Bazel, so that
locales don't need to live as sources within the repo. Also
it allows us to get rid of the legacy Gulp tooling.

The migration of the Gulp script to a Bazel tool involved the
following things:

  1. Basic conversion of the `extract.js` script to TypeScript.
     This mostly was about adding explicit types. e.g. adding `locale:
     string` or `localeData: CldrStatic`.

  2. Split-up into separate files. Instead of keeping the large
     `extract.js` file, the tool has been split into separate files.
     The logic remains the same, just that code is more readable and
     maintainable.

  3. Introduction of a new `index.ts` file that is the entry-point
     for the Bazel tool. Previously the Gulp tool just generated
     all locale files, the default locale and base currency files
     at once. The new entry-point accepts a mode to be passed as
     first process argument. based on that argument, either locales
     are generated into a specified directory, or the default locale,
     base currencies or closure file is generated.

     This allows us to generate files with a Bazel genrule where
     we simply run the tool and specify the outputs. Note: It's
     necessary to have multiple modes because files live in separate
     locations. e.g. the default locale in `@angular/core`, but the
     rest in `@angular/common`.

  4. Removal of the `cldr-data-downloader` and custom CLDR resolution
     logic. Within Bazel we cannot run a downloader using network.

     We switch this to something more Bazel idiomatic with better
     caching. For this a new repository rule is introduced that
     downloads the CLDR JSON repository and extracts it. Within
     that rule we determine the supported locales so that they
     can be used to pre-declare outputs (for the locales) within
     Bazel analysis phase. This allows us to add the generated locale
     files to a `ts_library` (which we want to have for better testing,
     and consistent JS transpilation).

     Note that the removal of `cldr-data-downloader` also requires us to
     add logic for detecting locales without data. The CLDR data
     downloader overwrote the `availableLocales.json` file with a file
     that only lists locales that CLDR provides data for. We use the
     official `availableLocales` file CLDR provides, but filter out
     locales for which no data is available. This is needed until we
     update to CLDR 39 where data is available for all such locales
     listed in `availableLocales.json`.

PR Close #42230
2021-06-07 15:34:38 -07:00
Paul Gschwendtner 9421bcd978 refactor: remove checked-in locale files (#42230)
This is a pre-refactor commit allowing us to move
the CLDR locale generation to Bazel where files would
no longer be checked-in, except for the `closure-locale`
file that is synced into Google3.

PR Close #42230
2021-06-07 15:34:38 -07:00
Andrew Scott a493ea9bcb fix(language-service): fix autocomplete info display for some cases (#42472)
Before this commit, attribute completion display parts were retrieved
but not assigned. In addition, the switch case was non-exhaustive
because it did not include `StructuralDirectiveAttribute`.

PR Close #42472
2021-06-07 12:25:53 -07:00
Paul Gschwendtner 38c592ea0a build: remove unused no-strict tsconfig file (#42506)
In the past, when we enabled `--strict` in the repository, we added
another tsconfig for code not being migrated to be `--strict`
compatible. This was done for the deprecated http and webworker
packages. Since these are now removed, we can rmeove the logic.

PR Close #42506
2021-06-07 10:47:47 -07:00
Andrew Kushnir f4c55e464a docs: provide more info on the `NO_ERRORS_SCHEMA` schema (#42327)
The `NO_ERRORS_SCHEMA` schema can be used to ignore errors related to unknown elements or properties, but since it suppresses these errors it may also hide real problems in a template. This commit updates the `NO_ERRORS_SCHEMA` docs to mention that.

Closes #39454.

PR Close #42327
2021-06-07 10:46:34 -07:00
Kristiyan Kostadinov afd68e5674 feat(compiler): emit diagnostic for shadow dom components with an invalid selector (#42245)
This is based on a discussion we had a few weeks ago. Currently if a component uses `ViewEncapsulation.ShadowDom` and its selector doesn't meet the requirements for a custom element tag name, a vague error will be thrown at runtime saying something like "Element does not support attachShadowRoot".

These changes add a new diagnostic to the compiler that validates the component selector and gives a better error message during compilation.

PR Close #42245
2021-06-07 10:44:57 -07:00
Pete Bacon Darwin cc904b5226 docs(core): clarify deprecation of `entryComponents` (#42248)
These may still be needed in View Engine libraries.

Closes #39958

PR Close #42248
2021-06-07 10:02:01 -07:00