This commit implements partial code generation for directives, which
will be transformed by the linker plugin to fully AOT compiled code in
follow-up work.
PR Close#39518
In PR #38938 an additional Bazel target was introduced for the compliance
tests, as preparation to run the compliance tests in partial compilation
mode and then apply the linker transform. The linker plugin itself was
not available at the time but has since been implemented, so this commit
updates the prelink target of the compliance tests to apply the linker
transform using the Babel plugin.
Actually emitting partial compilations to be transformed will be done in
follow-up work.
PR Close#39518
This introduces `AstObject.toMap` as an alternative to `AstObject
.toLiteral`, and adds `AstValue.getSymbolName` to query the symbol name
of a value using the encapsulated AST host.
PR Close#39518
When a class with a custom decorator is transpiled to ES5, it looks something like this:
```
var SomeClass = (function() {
function SomeClass() {...};
var SomeClass_1 = __decorate([Decorator()], SomeClass);
SomeClass = SomeClass_1;
return SomeClass;
})();
```
The problem is that if the class also has an Angular decorator that refers to the class itself
(e.g. `{provide: someToken, useClass: SomeClass}`), the generated `setClassMetadata` code will
be emitted after the IIFE, but will still refer to the intermediate `SomeClass_1` variable from
inside the IIFE. This happens, because we generate the `setClassMetadata` call directly from
the source AST which contains identifiers that TS will rename when it emits the ES5 code.
These changes resolve the issue by looking through the metadata AST and cloning any `Identifier`
that is referring to the class. Since TS doesn't have references to the clone, it won't rename
it when transpiling to ES5.
Fixes#39509.
PR Close#39527
Alex Eagle wrote an external article on our decision to move Bazel out of
Angular repo, and it's useful for users who want to know more about what's next.
PR Close#39507
This commit takes the `HybridVisitor` in the language service and gives it
the ability to return not just a node but the template context in which it
appears. In the future, more context regarding where a node appears in the
template might become necessary (ex: the microsyntax container for binding
nodes), and this refactoring enables that.
In the process, `HybridVisitor` is renamed and the concept of a
`TemplateTarget` interface is introduced to contain the results of this
operation.
PR Close#39505
This commit refactors the QuickInfo abstraction shared between the VE and
Ivy services and used to implement hover tooltips (quick info), which was
extracted from the VE code in commit faa81dc. The new DisplayParts
abstraction is more general and can be used to extract information needed by
various LS functions (e.g. autocompletion).
This commit effectively reverts faa81dc, returning the original code to the
VE implementation as the Ivy code is now diverged.
PR Close#39505
When registering an NgModule based on its id, all transitively imported
NgModules are also registered. This commit introduces a visited set to
avoid traversing into NgModules that are reachable from multiple import
paths multiple times.
Fixes#39487
PR Close#39514
The variable declaration for a template context is only needed when it
is referenced from somewhere, so the TCB operation to generate the
declaration is marked as optional.
PR Close#39321
When there is a primary outlet present in the outlets map and the object is also prefixed
with some other commands, the current logic only uses the primary outlet and ignores
the others. This change ensures that all outlets are respected at the
segment level when prefixed with other commands.
PR Close#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
Currently expressions `$event.foo()` and `this.$event.foo()`, as well as `$any(foo)` and
`this.$any(foo)`, are treated as the same expression by the compiler, because `this` is considered
the same implicit receiver as when the receiver is omitted. This introduces the following issues:
1. Any time something called `$any` is used, it'll be stripped away, leaving only the first parameter.
2. If something called `$event` is used anywhere in a template, it'll be preserved as `$event`,
rather than being rewritten to `ctx.$event`, causing the value to undefined at runtime. This
applies to listener, property and text bindings.
These changes resolve the first issue and part of the second one by preserving anything that
is accessed through `this`, even if it's one of the "special" ones like `$any` or `$event`.
Furthermore, these changes only expose the `$event` global variable inside event listeners,
whereas previously it was available everywhere.
Fixes#30278.
PR Close#39323
This commit updates the week-numbering year format from `r` -> `Y` based on the description in
http://www.unicode.org/reports/tr35/tr35-dates.html#dfst-year.
Note: this is not a breaking change, since the week-numbering year format was introduced in
v11.0.0-next.3 (984ed39195)
and the major version that contains that change was not released yet.
PR Close#39495
The Language Service is not only interested in external resources, but
also inline styles and templates. By storing the expression of the
inline resources, we can more easily determine if a given position is
part of the inline template/style expression.
PR Close#39482
To support recovery of malformed binding property names like `([a)`,
`[a`, or `()`, the binding parser needs to be more permissive w.r.t. the
kinds of bindings it can detect. This is difficult to do maintainably
with a regex, but is trivial with a "hand-rolled" string parser. This
commit refactors render3's binding attribute parsing to use this method
for multi-delimited bindings (namely via the `()`, `[]`, and `[()]`)
syntax, making the way recovery of malformed bindings in a future patch.
Note that we can keep using a regex for prefix-only binding syntax
(e.g. `bind-`, `ref-`) because validation of the binding is complete
once we have matched the prefix, and the only thing left to do is check
that the binding identifier is non-empty, which is trivial.
Part of #38596
PR Close#39375
This commit updates the docs for the `tView.preOrderHooks` and `tView.preOrderCheckHooks` TView
fields. Current docs are not up-to-date as it was pointed out in #39439.
Closes#39439.
PR Close#39497
This is follow-up from [an earlier discussion](https://github.com/angular/angular/pull/39408#discussion_r511908358).
After some testing, it looks like the type of `Element.attributes` was correct in specifying that it
only has `TextAttribute` instances. This means that the extra checks that filter out `BoundAttribute`
instances from the array isn't necessary. There is another loop a bit further down that actually
extracts the bound i18n attributes.
PR Close#39498
Close#39296
Fix an issue that `markDirty()` will not trigger change detection.
The case is for example we have the following component.
```
export class AppComponent implements OnInit {
constructor(private router: Router) {}
ngOnInit() {
this.router.events
.pipe(filter((e) => e instanceof NavigationEnd))
.subscribe(() => ɵmarkDirty(this));
}
}
export class CounterComponent implements OnInit, OnDestroy {
ngOnInit() {
this.countSubject.pipe(takeUntil(this.destroy)).subscribe((count) => {
this.count = count;
ɵmarkDirty(this);
});
}
```
Then the app navigate from `AppComponent` to `CounterComponent`,
so there are 2 `markDirty()` call at in a row.
The `1st` call is from `AppComponent` when router changed, the
`2nd` call is from `CounterComponent.ngOnInit()`.
And the `markDirty()->scheduleTick()` code look like this
```
function scheduleTick(rootContext, flags) {
const nothingScheduled = rootContext.flags === 0 /* Empty */;
rootContext.flags |= flags;
if (nothingScheduled && rootContext.clean == _CLEAN_PROMISE) {
rootContext.schedule(() => {
...
if (rootContext.flags & RootContextFlags.DetectChanges)
rootContext.flags &= ~RootContextFlags.DetectChanges;
tickContext();
rootContext.clean = _CLEAN_PROMISE;
...
});
```
So in this case, the `1st` markDirty() will
1. set rootContext.flags = 1
2. before `tickContext()`, reset rootContext.flags = 0
3. inside `tickContext()`, it will call `CounterComponent.ngOnint()`,
so the `2nd` markDirty() is called.
4. and the `2nd` scheduleTick is called, `nothingScheduled` is true,
but rootContext.clean is not `_CLEAN_PROMISE` yet, since the `1st` markDirty tick
is still running.
5. So nowhere will reset the `rootContext.flags`.
6. then in the future, any other `markDirty()` call will not trigger the tick, since
`nothingScheduled` is always false.
So `nothingScheduled` means no tick is scheduled, `rootContext.clean === _CLEAN_PROMISE`
means no tick is running.
So we should set the flags to `rootContext` only when `no tick is scheudled or running`.
PR Close#39316
This commit handles the following cases:
- incomplete pipes in a pipe chain
- incomplete arguments in a pipe chain
- incomplete arguments provided to a pipe
- nested pipes
The idea is to unconditionally recover on the presence of a pipe, which
should be okay because expression parsing can be independently between
pipes.
PR Close#39437
Angular-internal type definitions for Trusted Types were added in #39211.
When compiled using the Closure compiler with certain optimization
flags, identifiers from these type definitions (such as createPolicy)
are currently uglified and renamed to shorter strings. This causes
Angular applications compiled in this way to fail to create a Trusted
Types policy, and fall bock to using strings.
To fix this, mark the internal Trusted Types definitions as declarations
using the "declare" keyword. Also convert types to interfaces, for
the reasons explained in https://ncjamieson.com/prefer-interfaces/
PR Close#39471
This commit improves the ngModel docs, specifically:
- clarifies purpose of the name attribute in ngModelOptions
- clarifies on the interaction with a parent form or lack thereof
- fix inconsistency with analogy for two-way binding
- cleans up some typos and extra wordiness
- clarifies language around common properties
- adds missing preposition to commit message format origins
PR Close#39481
In the current release doc, we are using some shortcut of `git` command
such as `git ci` `git co`, so in this PR we are updating them
to the normal command, so these commands will work event without
these shortcuts.
PR Close#39442
In addition to the template mapping that already existed, we want to also track the mapping for external
style files. We also store the `ts.Expression` in the registry so external tools can look up a resource
on a component by expression and avoid reading the value.
PR Close#39373
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
This commit refactors validators-related logic that is common across most of the directives.
A couple notes on this refactoring:
* common logic was moved to the `AbstractControlDirective` class (including `validator` and
`asyncValidator` getters)
* sync/async validators are now composed in `AbstractControlDirective` class eagerly when validators
are set with `_setValidators` and `_setAsyncValidators` calls and the result is stored in directive
instance (thus getters return cached versions of validator fn). This is needed to make sure composed
validator function remains the same (retains its identity) for a given directive instance, so that
this function can be added and later removed from an instance of an AbstractControl-based class
(like `FormControl`). Preserving validator function is required to perform proper cleanup (in followup
PRs) of the AbstractControl-based classes when a directive is destroyed.
PR Close#38280
Currently render3's `parseTemplate` throws away the parsed AST and
returns an empty list of HTML nodes if HTML->R3 translation failed. This
is not preferrable in some contexts like that of a language service,
where we would like a well-formed AST even if it is has errors.
PR Close#39413
This reverts commit 561c0f81a0.
The original commit provided a quick escape from an already terminal
situation by killing the process if the PID in the lockfile was not
found in the list of processes running on the current machine.
But this broke use-cases where the node_modules was being shared between
multiple machines (or more commonly Docker containers on the same actual
machine).
Fixes#38875
PR Close#39435
Currently `i18n` attributes are treated the same no matter if they have data bindings or not. This
both generates more code since they have to go through the `ɵɵi18nAttributes` instruction and
prevents the translated attributes from being injected using the `@Attribute` decorator.
These changes makes it so that static translated attributes are treated in the same way as regular
static attributes and all other `i18n` attributes go through the old code path.
Fixes#38231.
PR Close#39408
This commit introduces two new methods to the TemplateTypeChecker, which
retrieve the directives and pipes that are "in scope" for a given component
template. The metadata returned by this API is minimal, but enough to power
autocompletion of selectors and attributes in templates.
PR Close#39278
This commit introduces caching of `Symbol`s produced by the template type-
checking infrastructure, in the same way that autocompletion results are
now cached.
PR Close#39278
This commit refactors the previously introduced `getGlobalCompletions()` API
for the template type-checker in a couple ways:
* The return type is adjusted to use a `Map` instead of an array, and
separate out the component context completion position. This allows for a
cleaner integration in the language service.
* A new `CompletionEngine` class is introduced which powers autocompletion
for a single component, and can cache completion results.
* The `CompletionEngine` for each component is itself cached on the
`TemplateTypeCheckerImpl` and is invalidated when the component template
is overridden or reset.
This refactoring simplifies the `TemplateTypeCheckerImpl` class by
extracting the autocompletion logic, enables caching for better performance,
and prepares for the introduction of other autocompletion APIs.
PR Close#39278
This commit removes a workaround to calculate the `expandoStartIndex` value. That workaround was needed
because the `expandoStartIndex` was updated previously, so it pointed at the wrong location. The problem
was fixed in PR #39301 and the workaround is no longer needed.
PR Close#39416
In production mode, the `ngDevMode` global may not have been declared.
This is typically not a problem, as optimizers should have removed all
usages of the `ngDevMode` variables. This does however require the
bundler/optimizer to have been configured in a certain way, as to allow
for `ngDevMode` guarded code to be removed.
As an example, Terser can be configured to remove the `ngDevMode`
guarded code using the following configuration:
```js
const terserOptions = {
// ...
compress: {
// ...
global_defs: require('@angular/compiler-cli').GLOBAL_DEFS_FOR_TERSER,
}
}
```
(Taken from https://github.com/angular/angular/issues/31595#issuecomment-519129090)
If this is not done, however, the bundle should still work (albeit with
larger code size due to missed tree-shaking opportunities). This commit
adds a check for whether `ngDevMode` has been declared, as it is a
top-level statement that executes before `ngDevMode` has been initialized.
Fixes#31595
PR Close#39415
The previous ViewEngine extraction tooling added `ctype` and `type`
attributes to XLIFF 1.2 and 2.0 translation files, respectively.
This commit adds this to the new $localize based extraction tooling.
Since the new extraction tooling works from the compiled output rather
than having direct access to the template content, the placeholder types
must be inferred from the name of the placeholder. This is considered
reasonable, since it already does this to compute opening and closing
tag placeholders.
Fixes#38791
PR Close#39398
Runtime i18n logic doesn't distinguish `<ng-content>` tag placeholders and regular element tag
placeholders in i18n messages, so there is no need to have a special marker for projection-based
placeholders and element markers can be used instead.
PR Close#39172
Due to how the global and sticky flag make RegExp objects stateful,
adds section detailing how it is not recommended
to use these flags for control validations.
PR Close#39055
Previously only the first message, for each id, was serialized
which meant that additional message location information
was lost.
Now all the message locations are included in the serialized
messages.
Fixes#39330
PR Close#39411
This commit improves the DefaultValueAccessor directive docs by:
- adding the `ngDefaultControl` as a search keyword to the description
- adding an example of the `ngDefaultControl` usage
Closes#35375.
PR Close#39404
Close#37531
Remove `global` declaration in `zone.ts` to avoid compile error when
upgrade to `@types/node` v12.12.68. Since the new type of global become
`NodeJS.global & typeof globalThis` and not compatible with `zone.ts` declaration.
PR Close#37861
Previously the volatile status file was always provided to the ng_rollup
action which prevented it from being cacheable remotely. This change to
only provide this file as an input when the --stamp flag is used will allow
for the action to be remotely cached and prevent needing to run the action
on every CI run.
PR Close#39392
The compiler uses a `Reference` abstraction to refer to TS nodes
that it needs to refer to from other parts of the source. Such
references keep track of any identifiers that represent the referenced
node.
Prior to this commit, the compiler (and specifically `ReferenceEmitter`
classes) assumed that the reference identifiers are always free standing.
In other words a reference identifier would be an expression like
`FooDirective` in the expression `class FooDirective {}`.
But in UMD/CommonJS source, a reference can actually refer to an "exports"
declaration of the form `exports.FooDirective = ...`.
In such cases the `FooDirective` identifier is not free-standing
since it is part of a property access, so the `ReferenceEmitter`
should take this into account when emitting an expression that
refers to such a `Reference`.
This commit changes the `LocalIdentifierStrategy` reference emitter
so that if the `node` being referenced is not a declaration itself and
is in the current file, then it should be used directly, rather than
trying to use one of its identifiers.
PR Close#39346
Previously, UMD/CommonJS class inline declarations of the form:
```ts
exports.Foo = (function() { function Foo(); return Foo; })();
```
were capturing the whole IIFE as the implementation, rather than
the inner class (i.e. `function Foo() {}` in this case). This caused
the interpreter to break when it was trying to access such an export,
since it would try to evaluate the IIFE rather than treating it as a class
declaration.
PR Close#39346
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
There is no actionable change in this commit other than to pretty-print
EOF tokens. Actual parsing of unterminated pipes is already supported,
this just adds a test for it.
Part of #38596
PR Close#39113
Add back the zone.js externs file test for google closure compiler.
The test compiles a test program with and without `zone_externs`.
1. With `zone_externs`, the code should keep the APIs defined in the `zone_externs`.
2. Without `zone_externs`, the code will not keep these APIs.
PR Close#39108
`TNode.insertBeforeIndex` is only populated when i18n is present. This
change puts all code which reads `insertBeforeIndex` behind a
dynamically loaded functions which are set only when i18n code executes.
PR Close#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
`expandoInstructions` uses negative numbers by `-x`. This has lead to
issues in the paste as `-0` is processed as float rather than integer
leading to de-optimization.
PR Close#39233
IMPORTANT: `HEADER_OFFSET` should only be refereed to the in the `ɵɵ*` instructions to translate
instruction index into `LView` index. All other indexes should be in the `LView` index space and
there should be no need to refer to `HEADER_OFFSET` anywhere else.
PR Close#39233
- Made `*OpCodes` array branded for safer type checking.
- Simplify `I18NRemoveOpCodes` encoding.
- Broke out `IcuCreateOpCodes` from `I18nMutableOpCodes`.
PR Close#39233
`COMMENT_MARKER` is a generic name which does not make it obvious that
it is used for ICU use case. `ICU_MARKER` is more explicit as it is used
exclusively with ICUs.
PR Close#39233
When looking at `TView` debug template only Element nodes were displayed
as `TNode.Element` was used for both `RElement` and `RText`.
Additionally no text was stored in `TNode.value`. The result was that
the whole template could not be reconstructed. This refactoring creates
`TNodeType.Text` and store the text value in `TNode.value`.
The refactoring also changes `TNodeType` into flag-like structure make
it more efficient to check many different types at once.
PR Close#39233
Remove casting where we stored `TIcu` in `TNode.tagName` which was of
type `string` rather than `TIcu'. (renamed to `TNode.value` in previous
commit.)
PR Close#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#37021closes#38144closes#38073
PR Close#39233
`TemplateFixture` used to have positional parameters and many tests got
hard to read as number of parameters reach 10+ with many of them `null`.
This refactoring changes `TemplateFixture` to take named parameters
which improves usability and readability in tests.
PR Close#39233
This commit fixes a bug when `useAbsoluteUrl` is set to true and
`ServerPlatformLocation` infers the base url from the supplied
`url`. User should explicitly set the `baseUrl` when they turn on
`useAbsoluteUrl`.
Breaking change:
If you use `useAbsoluteUrl` to setup `platform-server`, you now need to
also specify `baseUrl`.
We are intentionally making this a breaking change in a minor release,
because if `useAbsoluteUrl` is set to `true` then the behavior of the
application could be unpredictable, resulting in issues that are hard to
discover but could be affecting production environments.
PR Close#39334
The type of the `navigationExtras` param was accidetally changed to the wrong symbol
in 783a5bd7bb.
These changes revert it to the correct one.
PR Close#39347
This commit adds the basic building blocks for linking partial declarations.
In particular it provides a generic `FileLinker` class that delegates to
a set of (not yet implemented) `PartialLinker` classes.
The Babel plugin makes use of this `FileLinker` providing concrete classes
for `AstHost` and `AstFactory` that work with Babel AST. It can be created
with the following code:
```ts
const plugin = createEs2015LinkerPlugin({ /* options */ });
```
PR Close#39116
Constructing a project service is expensive. Making it a singleton could
speed up tests considerably.
On my MacBook Pro, test execution went from 24.4s to 14.5s (~40% improvement).
PR Close#39308
Test harness `setup()` is expensive, in the order of ~2.5 seconds.
We could speed up `fit()` tests considerably if `setup()` is wrapped
in `beforeAll()` to avoid running it unnecessarily.
PR Close#39305
This commit enables the Ivy Language Service to 'go to definition' of a
templateUrl or styleUrl, which would jump to the template/style file
itself.
PR Close#39202
These functions will be useful to the Ivy language service as well to
provide 'go to definition' functionality for template and style urls.
PR Close#39202
Use the bypass-specific Trusted Types policy for automatically upgrade
any values from custom sanitizers or the bypassSecurityTrust functions
to a Trusted Type. Update tests to reflect the new behavior.
PR Close#39218
When an application uses a custom sanitizer or one of the
bypassSecurityTrust functions, Angular has no way of knowing whether
they are implemented in a secure way. (It doesn't even know if they're
introduced by the application or by a shady third-party dependency.)
Thus using Angular's main Trusted Types policy to bless values coming
from these two sources would undermine the security that Trusted Types
brings.
Instead, introduce a Trusted Types policy called angular#unsafe-bypass
specifically for blessing values from these sources. This allows an
application to enforce Trusted Types even if their application uses a
custom sanitizer or the bypassSecurityTrust functions, knowing that
compromises to either of these two sources may lead to arbitrary script
execution. In the future Angular will provide a way to implement
custom sanitizers in a manner that makes better use of Trusted Types.
PR Close#39218
Make Angular's HTML sanitizer return a TrustedHTML, as its output is
trusted not to cause XSS vulnerabilities when used in a context where a
browser may parse and evaluate HTML. Also update tests to reflect the
new behaviour.
PR Close#39218
Sanitizers in Angular currently return strings, which will then
eventually make their way down to the DOM, e.g. as the value of an
attribute or property. This may cause a Trusted Types violation. As a
step towards fixing that, make it possible to return Trusted Types from
the SanitizerFn interface, which represents the internal sanitization
pipeline. DOM renderer interfaces are also updated to reflect the fact
that setAttribute and setAttributeNS must be able to accept Trusted
Types.
PR Close#39218
The JIT compiler uses the Function constructor to compile arbitrary
strings into executable code at runtime, which causes Trusted Types
violations. To address this, JitEvaluator is instead made to use the
Trusted Types compatible Function constructor introduced by Angular's
Trusted Types policy for JIT.
PR Close#39210
Introduce a Trusted Types policy for use by Angular's JIT compiler named
angular#unsafe-jit. As the compiler turns arbitrary untrusted strings
into executable code at runtime, using Angular's main Trusted Types
policy does not seem appropriate, unless it can be ensured that the
provided strings are indeed trusted. Until then, this JIT policy can be
allowed by applications that rely on the JIT compiler but want to
enforce Trusted Types, knowing that a compromise of the JIT compiler can
lead to arbitrary script execution. In particular, this is required for
enabling Trusted Types in Angular unit tests, since they make use of the
JIT compiler.
Also export the internal Trusted Types definitions from the core package
so that they can be used in the compiler package.
PR Close#39210
When reading globals such as `ngDevMode` the read should be guarded by `typeof ngDevMode` otherwise it will throw if not
defined in `"use strict"` mode.
PR Close#36055
getCheckNoChangesMode was discovered to be unclear as to the purpose of
it. This refactor is a simple renaming to make it much clearer what that
method and property does.
PR Close#39277
When an input name is part of the directive selector, it would be good to return the directive as well
when performing 'go to definition' or 'go to type definition'. As an example, this would allow
'go to type definition' for ngIf to take the user to the NgIf directive.
'Go to type definition' would otherwise return no results because the
input is a generic type. This would also be the case for all primitive
input types.
PR Close#39243
Angular treats constant values of attributes and properties in templates
as secure. This means that these values are not sanitized, and are
instead passed directly to the corresponding setAttribute or setProperty
function. In cases where the given attribute or property is
security-sensitive, this causes a Trusted Types violation.
To address this, functions for promoting constant strings to each of the
three Trusted Types are introduced to Angular's private codegen API. The
compiler is updated to wrap constant strings with calls to these
functions as appropriate when constructing the `consts` array. This is
only done for security-sensitive attributes and properties, as
classified by Angular's dom_security_schema.
PR Close#39211
The @types/trusted-types type definitions are currently imported in
types.d.ts, which causes them to eventually be imported in core.d.ts.
This forces anyone compiling against @angular/core to provide the
@types/trusted-types package in their compilation unit, which we don't
want.
To address this, get rid of the @types/trusted-types and instead import
a minimal version of the Trusted Types type definitions directly into
Angular's codebase.
Update the existing references to Trusted Types to point to the new
definitions.
PR Close#39211
Zone.js support `Angular package format` since `0.11`, but the `fesm2015` bundles
are not `esm` format, it still use `umd` bundle which is not correct, in this PR,
a new `esm` bundle output is added in `rollup_bundle` rule under `tools`, so
zone.js can use the new rule to generate `esm` bundles.
PR Close#39203
Previously, inline exports of the form `exports.foo = <implementation>;` were
being interpreted (by the ngtsc `PartialInterpeter`) as `Reference` objects.
This is not what is desired since it prevents the value of the export
from being unpacked, such as when analyzing `NgModule` declarations:
```
exports.directives = [Directive1, Directive2];
@NgImport({declarations: [exports.directives]})
class AppModule {}
```
In this example the interpreter would think that `exports.directives`
was a reference rather than an array that needs to be unpacked.
This bug was picked up by the ngcc-validation repository. See
https://github.com/angular/ngcc-validation/pull/1990 and
https://circleci.com/gh/angular/ngcc-validation/17130
PR Close#39267
Some inline declarations are of the form:
```
exports.<name> = <implementation>;
```
In this case the declaration `node` is `exports.<name>`.
When interpreting such inline declarations we actually want
to visit the `implementation` expression rather than visiting
the declaration `node`.
This commit adds `implementation?: ts.Expression` to the
`InlineDeclaration` type and updates the interpreter to visit
these expressions as described above.
PR Close#39267
Support for IE<11 is being removed in v11. PR #39090 removed some code
that was no longer needed.
Now that there are no longer multiple code-paths (which was previously
needed for IE<11 support), this commit simplifies the code further (for
example, to avoid unnecessary functions calls and to avoid iterating
over a component's inputs multiple times).
PR Close#39265
This commit fixes a bug in which a new Ivy Compiler is created every time
language service receives a new request. This is not needed if the
`ts.Program` has not changed.
A new class `CompilerFactory` is created to manage Compiler lifecycle and
keep track of template changes so that it knows when to override them.
With this change, we no longer need the method `getModifiedResourceFile()`
on the adapter. Instead, we call `overrideComponentTemplate` on the
template type checker.
This commit also changes the incremental build strategy from
`PatchedIncrementalBuildStrategy` to `TrackedIncrementalBuildStrategy`.
PR Close#39231
This commit updates micro benchmarks to use relative path to Ivy runtime code. Keeping absolute
locations caused issues with build optimizer that retained certain symbols and they appeared in the
output twice.
PR Close#39142
This commit adds micro benchmarks to run micro benchmarks for i18n-related logic in the
following scenarios:
- i18n static attributes
- i18n attributes with interpolations
- i18n blocks of static text
- i18n blocks of text + interpolations
- simple ICUs
- nested ICUs
First 4 scenarios also have baseline scenarios (non-i18n) so that we can compare i18n perf with
non-i18n logic.
PR Close#39142
Add a schematic to update users to the new v11 `initialNavigation`
options for `RouterModule`. This replaces the deprecated/removed
`true`, `false`, `legacy_disabled`, and `legacy_enabled` options
with the newer `enabledBlocking` and `enabledNonBlocking` options.
PR Close#36926
As of Angular v4, four of the options for
`ExtraOptions#initialNavigation` have been deprecated. We intend
to remove them in v11. The final state for these options is:
`enabledBlocking`, `enabledNonBlocking`, and `disabled`. We plan
to remove and deprecate the remaining option in the next two
major releases.
New options:
- `enabledNonBlocking`: same as legacy_enabled
- `enabledBlocking`: same as enabled
BREAKING CHANGE:
* The `initialNavigation` property for the options in
`RouterModule.forRoot` no longer supports `legacy_disabled`,
`legacy_enabled`, `true`, or `false` as valid values.
`legacy_enabled` (the old default) is instead `enabledNonBlocking`
* `enabled` is deprecated as a valid value for the
`RouterModule.forRoot` `initialNavigation` option. `enabledBlocking`
has been introduced to replace it
PR Close#37480
Remove preserveQueryParams as it was deprecated for removal in v4, use
queryParamsHandling="preserve" instead.
BREAKING CHANGE: preserveQueryParams has been removed, use
queryParamsHandling="preserve" instead
PR Close#38762
When ngcc is configured to run with the `--use-program-dependencies`
flag, as is the case in the CLI's asynchronous processing, it will scan
all source files in the program, starting from the program's root files
as configured in the tsconfig. Each individual root file could
potentially rescan files that had already been scanned for an earlier
root file, causing a severe performance penalty if the number of root
files is large. This would be the case if glob patterns are used in the
"include" specification of a tsconfig file.
This commit avoids the performance penalty by keeping track of the files
that have been scanned across all root files, such that no source file
is scanned multiple times.
Fixes#39240
PR Close#39254
Address a Trusted Types violation that occurs in createNamedArrayType
during development mode. Instead of passing strings directly to "new
Function", use the Trusted Types compatible function constructor exposed
by the Trusted Types policy.
PR Close#39209
Chrome currently does not support passing TrustedScript to the Function
constructor, and instead fails with a Trusted Types violation when
called. As the Function constructor is used in a handful of places
within Angular, such as in the JIT compiler and named_array_type, the
workaround proposed on the following page is implemented:
https://github.com/w3c/webappsec-trusted-types/wiki/Trusted-Types-for-function-constructor
To be precise, it constructs a string representing an anonymous function
in a way that is equivalent to what the Function constructor does,
promotes it to a TrustedScript and then calls eval.
To facilitate backwards compatibility, new Function is used directly in
environments that do not support Trusted Types.
PR Close#39209
In `FakeAsyncZoneSpec`, there are several variables and APIs to identify
different times, and the names are confusing, in this commit, they are
renamed for more clear understandings.
1. currentTickTime, the tick millis advanced.
2. getFakeBaseSystemTime(), return the fake base system time.
3. setFakeBaseSystemTime(), set the fake base system time.
4. getRealSystemTime(), get the underlying native system time.
PR Close#39127
`jest.getRealSystemTime()` should return native `Date.now()`, the
current implemenation return the wrong value which is the fixed
number.
PR Close#39127
This commit removes a workaround previously used for IE 9 and 10 to identify whether InjectableDef
was defined on a given class instance. Since support for IE 9 and 10 is removed, this fallback is
no longer needed.
PR Close#39090
This commit removes IE 9 and IE 10 checks from the browser detection spec.
Also unblocks tests that were previously disabled due to issues in IE10.
PR Close#39090
This commit updates core tests and removes the code needed to support IE 9 and IE 10 only.
The code is no longer needed since IE 9 and IE 10 support is removed in v11.
PR Close#39090
When Angular is used in an environment that enforces Trusted Types, the
inert DOM builder raises a Trusted Types violation due to its use of
DOMParser and element.innerHTML with plain strings. Since it is only
used internally (in the HTML sanitizer and for i18n ICU parsing), we
update it to use Angular's Trusted Types policy to promote the provided
HTML to TrustedHTML.
PR Close#39208
Since we are merged https://github.com/angular/angular/issues/38851 PR
about integration of jest.useFakeTimers with fakeAsync, so the
new release should also include this feature, this PR updated the zone.js
0.11.2 changelog.
PR Close#39126
Add a module that provides a Trusted Types policy for use internally by
Angular. The policy is created lazily and stored in a module-local
variable. For now the module does not allow configuring custom policies
or policy names, and instead creates its own policy with 'angular' as a
fixed policy name. This is to more easily support tree-shakability.
Helper functions for unsafely converting strings to each of the three
Trusted Types are also introduced, with documentation that make it clear
that their use requires a security review. When Trusted Types are not
available, these helper functions fall back to returning strings.
PR Close#39207
To facilitate the upcoming Trusted Types support being added to Angular,
add the TypeScript type definitions for the Trusted Types browser API as
a dependency in the root package.json and types.d.ts since they're
needed for compiling the Angular packages.
PR Close#39207
Adds a migration that finds all imports and calls to the deprecated `async` function from
`@angular/core/testing` and replaces them with `waitForAsync`.
These changes also move a bit of code out of the `Renderer2` migration so that it can be reused.
PR Close#39212
For directives/components, it would be generally more appropriate for
"go to type definition" to be the function which navigates to the class
definition. However, for a better user experience, we should do this
for "go to definition" as well.
PR Close#39228
This make it coherent with typing of Router.createUrlTree to which
those inputs are directly forwarded to. And hence it allow to pass
`undefined`, `null` or a value to the routerLink directive.
BREAKING CHANGE: in most cases this should not break, but if you were
accessing the values of `queryParams`, `fragment` or `queryParamsHandling`
you might need to relax the typing to also accept `undefined` and `null`.
Signed-off-by: Adrien Crivelli <adrien.crivelli@gmail.com>
PR Close#39151
This should not change behavior, but it prevents false-positive warnings in various static analysis
tools, including tools used internally at Google.
PR Close#37397
Previously the `node.name` property was only checked to ensure it was
defined. But that meant that it was a `ts.BindingName`, which also includes
`ts.BindingPattern`, which we do not support. But these helper methods were
forcefully casting the value to `ts.Identifier.
Now we also check that the `node.name` is actually an `ts.Identifier`.
PR Close#38959
Previously directive "queries" that relied upon a namespaced type
```ts
queries: {
'mcontent': new core.ContentChild('test2'),
}
```
caused an error to be thrown. This is now supported.
PR Close#38959
Previously, any declarations that were defined "inline" were not
recognised by the `UmdReflectionHost`.
For example, the following syntax was completely unrecognized:
```ts
var Foo_1;
exports.Foo = Foo_1 = (function() {
function Foo() {}
return Foo;
})();
exports.Foo = Foo_1 = __decorate(SomeDecorator, Foo);
```
Such inline classes were ignored and not processed by ngcc.
This lack of processing led to failures in Ivy applications that relied
on UMD formats of libraries such as `syncfusion/ej2-angular-ui-components`.
Now all known inline UMD exports are recognized and processed accordingly.
Fixes#38947
PR Close#38959
Previously these tests were checking multiple specific expression
types. The new helper function is more general and will also support
`PropertyAccessExpression` nodes for `InlineDeclaration` types.
PR Close#38959
Previously the `ConcreteDeclaration` and `InlineDeclaration` had
different properties for the underlying node type. And the `InlineDeclaration`
did not store a value that represented its declaration.
It turns out that a natural declaration node for an inline type is the
expression. For example in UMD/CommonJS this would be the `exports.<name>`
property access node.
So this expression is now used for the `node` of `InlineDeclaration` types
and the `expression` property is dropped.
To support this the codebase has been refactored to use a new `DeclarationNode`
type which is a union of `ts.Declaration|ts.Expression` instead of `ts.Declaration`
throughout.
PR Close#38959
This makes these tests more resilient to changes in the test code
structure. For example switching from
```
var SomeClass = <implementation>;
exports.SomeClass = SomeClass;
```
to
```
exports.SomeClass = <implementation>;
```
PR Close#38959
Previously `getDeclaration()` would only return the first node that matched
the name passed in and then assert the predicate on this single node.
It also only considered a subset of possible declaration types that we might
care about.
Now the function will parse the whole tree collecting an array of all the
nodes that match the name. It then filters this array based on the predicate
and only errors if the filtered array is empty.
This makes this function much more resilient to more esoteric code formats
such as UMD.
PR Close#38959
The new function does not try to restrict the kind of AST node that it
finds, leaving that to the caller. This will make it more resuable in the
UMD reflection host.
PR Close#38959
Sometimes UMD exports appear in the following form:
```
exports.MyClass = alias1 = alias2 = <<declaration>>
```
Previously the declaration of the export would have been captured
as `alias1 = alias2 = <<declaration>>`, which the `PartialInterpreter`
would have failed on, since it cannot handle assignments.
Now we skip over these aliases capturing only the `<<declaration>>`
expression.
Fixes#38947
PR Close#38959
UMD files export values by assigning them to an `exports` variable.
When evaluating expressions ngcc was failing to cope with expressions
like `exports.MyComponent`.
This commit fixes the `UmdReflectionHost.getDeclarationOfIdentifier()`
method to map the `exports` variable to the current source file.
PR Close#38959
The `SIMPLE_CLASS_FILE` contained a `ChildClass` that had an
internal aliases implementation and extended a `SuperClass` base
class. The call to `__extends` was using the wrong argument for
the child class.
PR Close#38959
This clarifies that this is specifically about statements of the form
`exports.<name> = <declaration>`, rather than a general export
statement such as `export class <ClassName> { ... }`.
PR Close#38959
There is no need to check that the `ref.node` is of any particular type
because immediately after this check the entry is tested to see if it passes
`isClassDeclarationReference()`.
The only difference is that the error that is reported is slightly different
in the case that it is a `ref` but not one of the TS node types.
Previously:
```
`Value at position ${idx} in the NgModule.${arrayName} of ${
className} is not a reference`
```
now
```
`Value at position ${idx} in the NgModule.${arrayName} of ${
className} is not a class`
```
Arguably the previous message was wrong, since this entry IS a reference
but is not a class.
PR Close#38959
Since IE 9 and IE 10 were deprecated and support is removed in v11, this commit updates ZoneJs
configs to avoid running tests in these browsers.
PR Close#39189
Although in SSR we patch the global prototypes with DOM globals
like Element and Node, this patch does not occur before the
matches function is called in Angular Elements. This is similar
to the behavior in @angular/upgrade.
Fixes#24551
PR Close#37799
At a high level, the current shadow DOM shim logic works by escaping the content of a CSS rule
(e.g. `div {color: red;}` becomes `div {%BLOCK%}`), using a regex to parse out things like the
selector and the rule body, and then re-adding the content after the selector has been modified.
The problem is that the regex has to be very broad in order capture all of the different use cases,
which can cause it to match strings suffixed with a semi-colon in some places where it shouldn't,
like this URL from Google Fonts `https://fonts.googleapis.com/css2?family=Roboto:wght@400;500&display=swap`.
Most of the time this is fine, because the logic that escapes the rule content to `%BLOCK%` will
have converted it to something that won't be matched by the regex. However, it breaks down for rules
like `@import` which don't have a body, but can still have quoted content with characters that can
match the regex.
These changes resolve the issue by making a second pass over the escaped string and replacing all
of the remaining quoted content with `%QUOTED%` before parsing it with the regex. Once everything
has been processed, we make a final pass where we restore the quoted content.
In a previous iteration of this PR, I went with a shorter approach which narrowed down the
regex so that it doesn't capture rules without a body. It fixed the issue, but it also ended
up breaking some of the more contrived unit test cases. I decided not to pursue it further, because
we would've ended up with a very long and brittle regex that likely would've broken in even weirder
ways.
Fixes#38587.
PR Close#38716
Removes `ViewEncapsulation.Native` which has been deprecated for several major versions.
BREAKING CHANGES:
* `ViewEncapsulation.Native` has been removed. Use `ViewEncapsulation.ShadowDom` instead. Existing
usages will be updated automatically by `ng update`.
PR Close#38882
Expressions within ICU expressions in templates were not previously
type-checked, as they were skipped while traversing the elements
within a template. This commit enables type checking of these
expressions by actually visiting the expressions.
BREAKING CHANGE:
Expressions within ICUs are now type-checked again, fixing a regression
in Ivy. This may cause compilation failures if errors are found in
expressions that appear within an ICU. Please correct these expressions
to resolve the type-check errors.
Fixes#39064
PR Close#39072
Prior to this change, expressions within ICUs would have a source span
corresponding with the whole ICU. This commit narrows down the source
spans of these expressions to the exact location in the source file, as
a prerequisite for reporting type check errors within these expressions.
PR Close#39072
Updates to rules_nodejs 2.2.0. This is the first major release in 7 months and includes a number of features as well
as breaking changes.
Release notes: https://github.com/bazelbuild/rules_nodejs/releases/tag/2.0.0
Features of note for angular/angular:
* stdout/stderr/exit code capture; this could be potentially be useful
* TypeScript (ts_project); a simpler tsc rule that ts_library that can be used in the repo where ts_library is too
heavy weight
Breaking changes of note for angular/angular:
* loading custom rules from npm packages: `ts_library` is no longer loaded from `@npm_bazel_typescript//:index.bzl`
(which no longer exists) but is now loaded from `@npm//@bazel/typescript:index.bzl`
* with the loading changes above, `load("@npm//:install_bazel_dependencies.bzl", "install_bazel_dependencies")` is
no longer needed in the WORKSPACE which also means that yarn_install does not need to run unless building/testing
a target that depends on @npm. In angular/angular this is a minor improvement as almost everything depends on @npm.
* @angular/bazel package is also updated in this PR to support the new load location; Angular + Bazel users that
require it for ng_package (ng_module is no longer needed in OSS with Angular 10) will need to load from
`@npm//@angular/bazel:index.bzl`. I investigated if it was possible to maintain backward compatability for the old
load location `@npm_angular_bazel` but it is not since the package itself needs to be updated to load from
`@npm//@bazel/typescript:index.bzl` instead of `@npm_bazel_typescript//:index.bzl` as it depends on ts_library
internals for ng_module.
* runfiles.resolve will now throw instead of returning undefined to match behavior of node require
Other changes in angular/angular:
* integration/bazel has been updated to use both ng_module and ts_libary with use_angular_plugin=true.
The latter is the recommended way for rules_nodejs users to compile Angular 10 with Ivy. Bazel + Angular ViewEngine is
supported with @angular/bazel <= 9.0.5 and Angular <= 8. There is still Angular ViewEngine example on rules_nodejs
https://github.com/bazelbuild/rules_nodejs/tree/stable/examples/angular_view_engine on these older versions but users
that want to update to Angular 10 and are on Bazel must switch to Ivy and at that point ts_library with
use_angular_plugin=true is more performant that ng_module. Angular example in rules_nodejs is configured this way
as well: https://github.com/bazelbuild/rules_nodejs/tree/stable/examples/angular. As an aside, we also have an
example of building Angular 10 with architect() rule directly instead of using ts_library with angular plugin:
https://github.com/bazelbuild/rules_nodejs/tree/stable/examples/angular_bazel_architect.
NB: ng_module is still required for angular/angular repository as it still builds ViewEngine & @angular/bazel
also provides the ng_package rule. ng_module can be removed in the future if ViewEngine is no longer needed in
angular repo.
* JSModuleInfo provider added to ng_module. this is for forward compat for future rules_nodejs versions.
PR Close#39182
This is a roll forward of #39082, using `ts.createIdentifier(`'legacy'`)` as a cross-version compatible way of making
a single quoted string literal.
Migrated code now uses single quotes, which is in line with the default linting options, so there is no lint error after
migration.
PR Close#39102
This PR enables `getSemanticDiagnostics()` to be called on external templates.
Several changes are needed to land this feature:
1. The adapter needs to implement two additional methods:
a. `readResource()`
Load the template from snapshot instead of reading from disk
b. `getModifiedResourceFiles()`
Inform the compiler that external templates have changed so that the
loader could invalidate its internal cache.
2. Create `ScriptInfo` for external templates in MockHost.
Prior to this, MockHost only track changes in TypeScript files. Now it
needs to create `ScriptInfo` for external templates as well.
For (1), in order to make sure we don't reload the template if it hasn't
changed, we need to keep track of its version. Since the complexity has
increased, the adapter is refactored into its own class.
PR Close#39065
Temporarily disable the //packages/compiler-cli/integrationtest:integrationtest
target while continuing to investigate its unknown failures
PR Close#39168
The right needs to be wrapped in parens or we cannot accurately match its
span to just the RHS. For example, the span in `e = $event /*0,10*/` is ambiguous.
It could refer to either the whole binary expression or just the RHS.
We should instead generate `e = ($event /*0,10*/)` so we know the span 0,10 matches RHS.
This is specifically needed for the TemplateTypeChecker/Language Service
when mapping template positions to items in the TCB.
PR Close#39143
As of #32671, the type of `AbstractControl.parent` can be null which can cause
compilation errors in existing apps. These changes add a migration that will append
non-null assertions to existing unsafe accesses.
````
// Before
console.log(control.parent.value);
// After
console.log(control.parent!.value);
```
The migration also tries its best to avoid cases where the non-null assertions aren't
necessary (e.g. if the `parent` was null checked already).
PR Close#39009
This commit introduces a new API for the `TemplateTypeChecker` which allows
for autocompletion in a global expression context (for example, in a new
interpolation expression such as `{{|}}`). This API returns instances of the
type `GlobalCompletion`, which can represent either a completion result from
the template's component context or a declaration such as a local reference
or template variable. The Language Service will use this API to implement
autocompletion within templates.
PR Close#39048
The template binding API in @angular/compiler exposes information about a
template that is synthesized from the template structure and its scope
(associated directives and pipes).
This commit introduces a new API, `getEntitiesInTemplateScope`, which
accepts a `Template` object (or `null` to indicate the root template) and
returns all `Reference` and `Variable` nodes that are visible at that level
of the template, including those declared in parent templates.
This API is needed by the template type-checker to support autocompletion
APIs for the Language Service.
PR Close#39048
Previously the value passed to `AstFactory.attachComments()` could be
`undefined` which is counterintuitive, since why attach something that
doesn't exist? Now it expects there to be a defined array. Further it no
longer returns a statement. Both these aspects of the interface were designed
to make the usage simpler but has the result of complicating the implemenation.
The `ExpressionTranslatorVisitor` now has a helper function (`attachComments()`)
to handle `leadingComments` being undefined and also returning the statement.
This keeps the usage in the translator simple, while ensuring that the `AstFactory`
API is not influenced by how it is used.
PR Close#39076
Fixed a boolean logic error that prevented hybrid visitor from returning
undefined when a variable does not have value and cursor is not in the
key span.
PR Close#39061
Prior to this change, the `validators` and `asyncValidators` fields of a few Forms directives
were typed as `any[]`. This commit updates the types and makes them consistent for all directives
in the Forms package.
BREAKING CHANGE:
Directives in the `@angular/forms` package used to have `any[]` as a type of `validators` and
`asyncValidators` arguments in constructors. Now these arguments are properly typed, so if your
code relies on directive constructor types it may require some updates to improve type safety.
PR Close#38944
In the `packages/examples/common/ngif/module.ts` file, the field `show` is given an explicit
boolean type. Since typescript infers boolean type, it is redundant and this commit removes it.
PR Close#39081
Previously, RouterTestingModule only assigned two of the options within ExtraOptions to the Router.
Now, it assigns the same options as RouterModule does (with the exception of enableTracing) via a
new shared function assignExtraOptionsToRouter.
Fixes#23347
PR Close#39096
Rather than having the Ivy implementation add the VE code to the deps
list, create a new common package that both Ivy and VE depend on. This
will make it more straightforward in the future to remove the VE code
completely.
PR Close#39098
This is needed so that the Language Service can provide the module name
in the quick info for a directive/component.
To accomplish this, the compiler's `LocalModuleScope` is provided to the
`TemplateTypeCheckerImpl`. This will also allow the `TemplateTypeChecker` to
provide more completions in the future, giving it a way to determine all the
directives/pipes/etc. available to a template.
PR Close#39099
The expression parser already has support for recovering on malformed
property reads, but did not have tests describing the recovered ast in
such cases. This commit adds tests to demonstrate such cases; in
particular, the recovered ast is a full PropertyRead but with an empty
property name. This is likely the most preferred option, as it does not
constrain consumers of the AST to what the property name should look
like. Furthermore, we cannot mark the property name as empty in any
other way (e.g. an EmptyExpr) because the property name, as of present,
is a string field rather than an AST itself.
Note that tokens past a malformed property read are not preserved in the
AST (for example in `foo.1234`, `1234` is not preserved in the AST).
This is because the extra tokens do not belong to the singular
expression created by the property read, and there is not a meaningful
way to interpret a secondary expression in a single parsed expression.
Part of #38596
PR Close#38998
Close#38851, support `jest` fakeTimers APIs' integration with `fakeAsync()`.
After enable this feature, calling `jest.useFakeTimers()` will make all test
run into `fakeAsync()` automatically.
```
beforeEach(() => {
jest.useFakeTimers('modern');
});
afterEach(() => {
jest.useRealTimers();
});
test('should run into fakeAsync() automatically', () => {
const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
expect(fakeAsyncZoneSpec).toBeTruthy();
});
```
Also there are mappings between `jest` and `zone` APIs.
- `jest.runAllTicks()` will call `flushMicrotasks()`.
- `jest.runAllTimers()` will call `flush()`.
- `jest.advanceTimersByTime()` will call `tick()`
- `jest.runOnlyPendingTimers()` will call `flushOnlyPendingTimers()`
- `jest.advanceTimersToNextTimer()` will call `tickToNext()`
- `jest.clearAllTimers()` will call `removeAllTimers()`
- `jest.getTimerCount()` will call `getTimerCount()`
PR Close#39016
It's perfectly valid for an abstract control not to have a defined parent; yet previously the
types were asserting that AbstractControl#parent is not a null value. This changes correctly
reflects the run-time behavior through the types.
BREAKING CHANGE: Type of AbstractFormControl.parent now includes null
`null` is now included in the types of .parent. If you don't already have a check for this case,
the TypeScript compiler might compain. A v11 migration exists which adds the not-null assertion
operator where necessary.
In an unlikely case your code was testing the parnet against undefined with sitrct equality,
you'll need to change this to `=== null` instead, since the parent is not explicily initialized
with `null` instead of being left `undefined`.
Fixes#16999
PR Close#32671
This patch refactors the interpolation parser to do so iteratively
rather than using a regex. Doing so prepares us for supporting granular
recovery on poorly-formed interpolations, for example when an
interpolation does not terminate (`{{ 1 + 2`) or is not terminated
properly (`{{ 1 + 2 {{ 2 + 3 }}`).
Part of #38596
PR Close#38977
The compiler maintains an internal dependency graph of all resource
dependencies for application source files. This information can be useful
for tools that integrate the compiler and need to support file watching.
This change adds a `getResourceDependencies` method to the
`NgCompiler` class that allows compiler integrations to access resource
dependencies of files within the compilation.
PR Close#38048
This patch adds support for recovering well-formed (and near-complete)
ASTs for semantically malformed keyed reads and keyed writes. See the
added tests for details on the types of semantics we can now recover;
in particular, notice that some assumptions are made about the form of
a keyed read/write intended by a user. For example, in the malformed
expression `a[1 + = 2`, we assume that the user meant to write a binary
expression for the key of `a`, and assign that key the value `2`. In
particular, we now parse this as `a[1 + <empty expression>] = 2`. There
are some different interpretations that can be made here, but I think
this is reasonable.
The actual changes in the parser code are fairly minimal (a nice
surprise!); the biggest addition is a `writeContext` that marks whether
the `=` operator can serve as a recovery point after error detection.
Part of #38596
PR Close#39004
Updates to rules_nodejs 2.2.0. This is the first major release in 7 months and includes a number of features as well
as breaking changes.
Release notes: https://github.com/bazelbuild/rules_nodejs/releases/tag/2.0.0
Features of note for angular/angular:
* stdout/stderr/exit code capture; this could be potentially be useful
* TypeScript (ts_project); a simpler tsc rule that ts_library that can be used in the repo where ts_library is too
heavy weight
Breaking changes of note for angular/angular:
* loading custom rules from npm packages: `ts_library` is no longer loaded from `@npm_bazel_typescript//:index.bzl`
(which no longer exists) but is now loaded from `@npm//@bazel/typescript:index.bzl`
* with the loading changes above, `load("@npm//:install_bazel_dependencies.bzl", "install_bazel_dependencies")` is
no longer needed in the WORKSPACE which also means that yarn_install does not need to run unless building/testing
a target that depends on @npm. In angular/angular this is a minor improvement as almost everything depends on @npm.
* @angular/bazel package is also updated in this PR to support the new load location; Angular + Bazel users that
require it for ng_package (ng_module is no longer needed in OSS with Angular 10) will need to load from
`@npm//@angular/bazel:index.bzl`. I investigated if it was possible to maintain backward compatability for the old
load location `@npm_angular_bazel` but it is not since the package itself needs to be updated to load from
`@npm//@bazel/typescript:index.bzl` instead of `@npm_bazel_typescript//:index.bzl` as it depends on ts_library
internals for ng_module.
* runfiles.resolve will now throw instead of returning undefined to match behavior of node require
Other changes in angular/angular:
* integration/bazel has been updated to use both ng_module and ts_libary with use_angular_plugin=true.
The latter is the recommended way for rules_nodejs users to compile Angular 10 with Ivy. Bazel + Angular ViewEngine is
supported with @angular/bazel <= 9.0.5 and Angular <= 8. There is still Angular ViewEngine example on rules_nodejs
https://github.com/bazelbuild/rules_nodejs/tree/stable/examples/angular_view_engine on these older versions but users
that want to update to Angular 10 and are on Bazel must switch to Ivy and at that point ts_library with
use_angular_plugin=true is more performant that ng_module. Angular example in rules_nodejs is configured this way
as well: https://github.com/bazelbuild/rules_nodejs/tree/stable/examples/angular. As an aside, we also have an
example of building Angular 10 with architect() rule directly instead of using ts_library with angular plugin:
https://github.com/bazelbuild/rules_nodejs/tree/stable/examples/angular_bazel_architect.
NB: ng_module is still required for angular/angular repository as it still builds ViewEngine & @angular/bazel
also provides the ng_package rule. ng_module can be removed in the future if ViewEngine is no longer needed in
angular repo.
* JSModuleInfo provider added to ng_module. this is for forward compat for future rules_nodejs versions.
@josephperrott, this touches `packages/bazel/src/external.bzl` which will make the sync to g3 non-trivial.
PR Close#37727
This updates the migration to align with the style guide and work with default lint rules. It avoids a lint error on
newly migrated projects and fixes a test in the CLI repo.
PR Close#39070
This commit adds the `AstHost` interface, along with implementations for
both Babel and TS.
It also implements the Babel vesion of the `AstFactory` interface, along
with a linker specific implementation of the `ImportGenerator` interface.
These classes will be used by the new "ng-linker" to transform prelinked
library code using a Babel plugin.
PR Close#38866
The `AstFactory.createFunctionDeclaration()` was allowing `null` to be
passed as the function `name` value. This is not actually possible, since
function declarations must always have a name.
PR Close#38866
The tests were assuming that newlines were `\n` characters but this is not
the case on Windows. This was fixed in #38925, but a better solution is to
configure the TS printer to always use `\n` characters for newlines.
PR Close#38866
In certain circumstances (errors during component constructor) the router outlet may not be activated before
redirecting to a new route. If the new route requires running guards and resolvers the current logic will throw
when accessing outlet.component due to an isActivated check within the property getter. This update brings the
logic inline with deactivateRouterAndItsChildren, namely checking outlet.isActivated before trying to access
outlet.component.
Fixes#39030
PR Close#39049
These free standing functions rely upon the "current" `FileSystem`,
but it is safer to explicitly pass the `FileSystem` into functions or
classes that need it.
Fixes#38711
PR Close#39006
These free standing functions rely upon the "current" `FileSystem`,
but it is safer to explicitly pass the `FileSystem` into functions or
classes that need it.
PR Close#39006
To verify the correctness of the linker output, we leverage the existing
compliance tests. The plan is to test the linker by running all compliance
tests using a full round trip of pre-linking and subsequently post-linking,
where the generated code should be identical to a full AOT compile.
This commit adds an additional Bazel target that runs the compliance
tests in partial mode. Follow-up work is required to implement the logic
for running the linker round trip.
PR Close#38938
This is a precursor to introducing the Angular linker. As an initial
step, a compiler option to configure the compilation mode is introduced.
This option is initially internal until the linker is considered ready.
PR Close#38938
It used to be the case that all microsyntax bindings share the same source
span, so the second bound attribute would overwrite the first.
This has been fixed in #39036, this case is added to prevent regression.
PR Close#39062
Create stubs for getTypeDefinitionAtPosition for both VE and Ivy Language Service implementations.
This will prevent failed requests when it is implemented on the vscode plugin side
PR Close#39050
* Add `templateNode` to `ElementSymbol` and `TemplateSymbol` so callers
can use the information about the attributes on the
`TmplAstElement`/`TmplAstTemplate` for directive matching
* Remove helper function `getSymbolOfVariableDeclaration` and favor
more specific handling for scenarios. The generic function did not
easily handle different scenarios for all types of variable declarations
in the TCB
PR Close#39047
Currently it is impossible to determine the source of a binding that
generates `BoundAttribute` because all bound attributes generated from a
microsyntax expression share the same source span.
For example, in
```html
<div *ngFor="let item of items; trackBy: trackByFn"></div>
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
source span for all `BoundAttribute`s generated from microsyntax
```
the `BoundAttribute` for both `ngForOf` and `ngForTrackBy`
share the same source span.
A lot of hacks were necessary in View Engine language service to work
around this limitation. It was done by inspecting the whole source span
then figuring out the relative position of the cursor.
With this change, we introduce a flag to set the binding span as the
source span of the `ParsedProperty` in Ivy AST.
This flag is needed so that we don't have to change VE ASTs.
Note that in the binding parser, we already set `bindingSpan` as the
source span for a `ParsedVariable`, and `keySpan` as the source span for
a literal attribute. This change makes the Ivy AST more consistent by
propagating the binding span to `ParsedProperty` as well.
PR Close#39036
In preparation for the Ivy Language service, add the same properties to AppComponent that appear in
TemplateReference so the inline template can be tested thoroughly.
PR Close#39033
This commit adds an API to `NgCompiler`, a method called
`getComponentsWithTemplateFile`. Given a filesystem path to an external
template file, it retrieves a `Set` (actually a `ReadonlySet`) of component
declarations which are using this template. In most cases, this will only be
a single component.
This information is easily determined by the compiler during analysis, but
is hard for a lot of Angular tooling (e.g. the language service) to infer
independently. Therefore, it makes sense to expose this as a compiler API.
PR Close#39002
Instead of doing all sorts of checks in the `visit()` method, move checks
that are specific to `BoundEvent` to the `visitBoundEvent()` method.
PR Close#38985
Remove @angular/platform-webworker and @angular/platform-webworker-dynamic
as they were deprecated in v8
BREAKING CHANGE: @angular/platform-webworker and @angular/platform-webworker-dynamic
have been removed as they were deprecated in v8
PR Close#38846
With the introduction of incremental type checking in #36211, an
intermediate `ts.Program` for type checking is only created if there are
any templates to check. This rendered some tests ineffective at avoiding
regressions, as the intermediate `ts.Program` was required for the tests
to fail if the scenario under test would not be accounted for. This
commit adds a single component to these tests, to ensure the
intermediate `ts.Program` is in fact created.
PR Close#39011
Prior to this fix, incremental rebuilds could fail to type check due to
missing ambient types from auto-discovered declaration files in @types
directories, or type roots in general. This was caused by the
intermediary `ts.Program` that is created for template type checking,
for which a `ts.CompilerHost` was used which did not implement the
optional `directoryExists` methods. As a result, auto-discovery of types
would not be working correctly, and this would retain into the
`ts.Program` that would be created for an incremental rebuild.
This commit fixes the issue by forcing the custom `ts.CompilerHost` used
for type checking to properly delegate into the original
`ts.CompilerHost`, even for optional methods. This is accomplished using
a base class `DelegatingCompilerHost` which is typed in such a way that
newly introduced `ts.CompilerHost` methods must be accounted for.
Fixes#38979
PR Close#39011
We weren't resolving a path correctly which resulted in an error on Windows.
For reference, here's the error. Note the extra slash before `C:`:
```
Error: ENOENT: no such file or directory, scandir '/C:/bazel_output_root/yxvwd24o/external/npm/node_modules/typescript'
at Object.readdirSync (fs.js:854:3)
```
PR Close#39005
BlacklistedStackFrames to InternalZoneJsStackFrames along with other related
symbols renamed with the same changes (with appropriate casing style).
PR Close#38978
This commit updates the symbols in the TemplateTypeCheck API and methods
for retrieving them:
* Include `isComponent` and `selector` for directives so callers can determine which
attributes on an element map to the matched directives.
* Add a new `TextAttributeSymbol` and return this when requesting a symbol for a `TextAttribute`.
* When requesting a symbol for `PropertyWrite` and `MethodCall`, use the
`nameSpan` to retrieve symbols.
* Add fix to retrieve generic directives attached to elements/templates.
PR Close#38844
`NodeInjector` is store in expando as a list of values in an array. The
offset constant into the array have been brought together into a single
`NodeInjectorOffset` enum with better documentation explaining their usage.
PR Close#38707
This change makes `getPreviousOrParentTNode` return `TNode|null` (rather
than just `TNode`) which is more reflective of the reality. The
`getPreviousOrParentTNode` can be `null` upon entering the `LView`.
PR Close#38707
`TNodeType.View` was created to support inline views. That feature did
not materialize and we have since removed the instructions for it, leave
an unneeded `TNodeType.View` which was still used in a very
inconsistent way. This change no longer created `TNodeType.View` (and
there will be a follow up chang to completely remove it.)
Also simplified the mental model so that `LView[HOST]`/`LView[T_HOST]`
always point to the insertion location of the `LView`.
PR Close#38707
Host `TNode` was passed into `getOrCreateTNode` just so that we can
compute weather or not we are a root node. This was needed because
`previousOrParentTNode` could have `TNode` from `TView` other then
current `TView`. This is confusing mental model. Previous change
ensured that `previousOrParentTNode` must always be part of `TView`,
which enabled this change to remove the unneeded argument.
PR Close#38707
`previousOrParentTNode` stores current `TNode`. Due to inconsistent
implementation the value stored would sometimes belong to the current
`TView` and sometimes to the parent. We have extra logic which accounts
for it. A better solution is to just ensure that `previousOrParentTNode`
always belongs to current `TNode`. This simplifies the mental model
and cleans up some code.
PR Close#38707
Even in the overloads, state that it can accept `null` and
`undefined`, in order to ensure easy composition with `async`.
Additionally, change the implementation to return `null` on an
`undefined` input, for consistency with other pipes.
BREAKING CHANGE:
The `slice` pipe now returns `null` for the `undefined` input value,
which is consistent with the behavior of most pipes. If you rely on
`undefined` being the result in that case, you now need to check for it
explicitly.
PR Close#37447
As shown in the tests, `KeyValuePipe.transform` can accept
`undefined`, in which case it always returns `null`.
Additionally, the typing for `string` keys can be made generic, so the
comparison function is only required to accept the relevant cases.
Finally, the typing for `number` records now shows that the comparison
function and the result entries will actually receive the string version
of the numeric keys, just as shown in the tests.
BREAKING CHANGE:
The typing of the `keyvalue` pipe has been fixed to report that for
input objects that have `number` keys, the result will contain the
string representation of the keys. This was already the case and the
code has simply been updated to reflect this. Please update the
consumers of the pipe output if they were relying on the incorrect
types. Note that this does not affect use cases where the input values
are `Map`s, so if you need to preserve `number`s, this is an effective
way.
PR Close#37447
I18nPluralPipe can actually accept `null` and `undefined` (which are
convenient for composing it with the async pipe), but it is currently
typed to only accept `number`.
PR Close#37447
Make typing of number pipes stricter to catch some misuses (such as
passing an Observable or an array) at compile time.
BREAKING CHANGE:
The signatures of the number pipes now explicitly state which types are
accepted. This should only cause issues in corner cases, as any other
values would result in runtime exceptions.
PR Close#37447
Make typing of DatePipe stricter to catch some misuses (such as passing
an Observable or an array) at compile time.
BREAKING CHANGE:
The signature of the `date` pipe now explicitly states which types are
accepted. This should only cause issues in corner cases, as any other
values would result in runtime exceptions.
PR Close#37447
`AsyncPipe.transform` will never return `undefined`, even when passed
`undefined` in input, in contrast with what was declared in the
overloads.
Additionally the "actual" method signature can be updated to match the
most generic case, since the implementation does not rely on wrappers
anymore.
BREAKING CHANGE:
The async pipe no longer claims to return `undefined` for an input that
was typed as `undefined`. Note that the code actually returned `null` on
`undefined` inputs. In the unlikely case you were relying on this,
please fix the typing of the consumers of the pipe output.
PR Close#37447
The old implementation of case conversion types can handle several
values which are not strings, but the signature did not reflect this.
The new one reports errors when falsy non-string inputs are given to
the pipe (such as `false` or `0`) and has a new signature which
instead reflects the behaviour on `null` and `undefined`.
Fixes#36259
BREAKING CHANGE:
The case conversion pipes no longer let falsy values through. They now
map both `null` and `undefined` to `null` and raise an exception on
invalid input (`0`, `false`, `NaN`) just like most "common pipes". If
your code required falsy values to pass through, you need to handle them
explicitly.
PR Close#37447
For the following example, the cursor is between `keySpan` and `valueSpan`
of the `BoundAttribute`.
```html
<test-cmp [foo]¦="bar"></test-cmp>
```
Our hybrid visitor will return `Element`in this case, which is the parent
node of the `BoundAttribute`.
This is because we only look at the `keySpan` and `valueSpan`, and not
the source span. The last element in the AST path is `Element`, so it gets
returned.
In this PR, I propose fixing this by adding a sentinel value `undefined`
to the AST path to signal that we've found a source span but the cursor is
neither in the key span nor the value span.
PR Close#38995
Now that we have `keySpan` for `BoundAttribute` (implemented in
https://github.com/angular/angular/pull/38898) we could do the same
for `Variable`.
This would allow us to distinguish the LHS and RHS from the whole source
span.
PR Close#38965
Prior to this change, each invocation of `loadStandardTestFiles` would
load the necessary files from disk. This function is typically called
at the top-level of a test module in order to share the result across
tests. The `//packages/compiler-cli/test/ngtsc` target has 8 modules
where this call occurs, each loading their own copy of
`node_modules/typescript` which is ~60MB in size, so the memory overhead
used to be significant. This commit loads the individual packages into
a standalone `Folder` and mounts this folder into the filesystem of
standard test files, such that all file contents are no longer
duplicated in memory.
PR Close#38909
Some compiler tests take a long time to run, even using multiple
executors. A profiling session revealed that most time is spent in
parsing source files, especially the default libraries are expensive to
parse.
The default library files are constant across all tests, so this commit
introduces a shared cache of parsed source files of the default
libraries. This achieves a significant improvement for several targets
on my machine:
//packages/compiler-cli/test/compliance: from 23s to 5s.
//packages/compiler-cli/test/ngtsc: from 115s to 11s.
Note that the number of shards for the compliance tests has been halved,
as the extra shards no longer provide any speedup.
PR Close#38909
`router.navigateByUrl` and `router.createUrlTree` only use a subset of the `NavigationExtras`. This commit
changes the parameter type to use new interfaces that only specify the properties used by
those function implementations. `NavigationExtras` extends both of those interfaces.
Fixes#18798
BREAKING CHANGE: While the new parameter types allow a variable of type
`NavigationExtras` to be passed in, they will not allow object literals,
as they may only specify known properties. They will also not accept
types that do not have properties in common with the ones in the `Pick`.
To fix this error, only specify properties from the `NavigationExtras` which are
actually used in the respective function calls or use a type assertion
on the object or variable: `as NavigationExtras`.
PR Close#38227
We are changing the default value from 'legacy' to 'corrected' so that new
applications are automatically opted-in to the corrected behavior from #22394.
BREAKING CHANGE: This commit changes the default value of
`relativeLinkResolution` from `'legacy'` to `'default'`. If your
application previously used the default by not specifying a value in the
`ExtraOptions` and uses relative links when navigating from children of
empty path routes, you will need to update your `RouterModule` to
specifically specify `'legacy'` for `relativeLinkResolution`.
See https://angular.io/api/router/ExtraOptions#relativeLinkResolution
for more details.
PR Close#25609
The keySpan in bound attributes provides more fine-grained location information and can be used
to disambiguate multiple bound attributes in a single microsyntax binding. Previously,
this case could not distinguish between the two different attributes because
the sourceSpans were identical and valueSpans would not match if the cursor
was located in a key.
PR Close#38955
Close#38334.
zone.js provides a flag DISABLE_WRAPPING_UNCAUGHT_PROMISE_REJECTION to let zone.js
throw the original error instead of wrap it when uncaught promise rejection found.
But the rejection value could be anything includes primitive value such as number.
In that case, we should not attach any additional properties to the value.
PR Close#38476
In Ivy, template type-checking has 3 modes: basic, full, and strict. The
primary difference between basic and full modes is that basic mode only
checks the top-level template, whereas full mode descends into nested
templates (embedded views like ngIfs and ngFors). Ivy applies this approach
to all of its template type-checking, including the DOM schema checks which
validate whether an element is a valid component/directive or not.
View Engine has both the basic and the full mode, with the same distinction.
However in View Engine, DOM schema checks happen for the full template even
in the basic mode.
Ivy's behavior here is technically a "fix" as it does not make sense for
some checks to apply to the full template and others only to the top-level
view. However, since g3 relies exclusively on the basic mode of checking and
developers there are used to DOM checks applying throughout their template,
this commit re-enables the nested schema checks even in basic mode only in
g3. This is done by enabling the checks only when Closure Compiler
annotations are requested.
Outside of g3, it's recommended that applications use at least the full mode
of checking (controlled by the `fullTemplateTypeCheck` flag), and ideally
the strict mode (`strictTemplates`).
PR Close#38943
The default value for `relativeLinkResolution` is changing from 'legacy' to 'corrected'.
This migration updates `RouterModule` configurations that use the default value to
now specifically use 'legacy' to prevent breakages when updating.
PR Close#38698
Though we currently have the knowledge of where the `key` for an
attribute binding appears during parsing, we do not propagate this
information to the output AST. This means that once we produce the
template AST, we have no way of mapping a template position to the key
span alone. The best we can currently do is map back to the
`sourceSpan`. This presents problems downstream, specifically for the
language service, where we cannot provide correct information about a
position in a template because the AST is not granular enough.
PR Close#38898
There is an inconsistency in overrideProvider behaviour. Testing documentation says
(https://angular.io/guide/testing-components-basics#createcomponent) that all override...
methods throw error if TestBed is already instantiated. However overrideProvider doesn't throw any error, but (same as
other override... methods) doesn't replace providers if TestBed is instantiated. Add TestBed instantiation check to
overrideProvider method to make it consistent.
BREAKING CHANGE:
If you call `TestBed.overrideProvider` after TestBed initialization, provider overrides are not applied. This
behavior is consistent with other override methods (such as `TestBed.overrideDirective`, etc) but they
throw an error to indicate that, when the check was missing in the `TestBed.overrideProvider` function.
Now calling `TestBed.overrideProvider` after TestBed initialization also triggers an
error, thus there is a chance that some tests (where `TestBed.overrideProvider` is
called after TestBed initialization) will start to fail and require updates to move `TestBed.overrideProvider` calls
before TestBed initialization is completed.
Issue mentioned here: https://github.com/angular/angular/issues/13460#issuecomment-636005966
Documentation: https://angular.io/guide/testing-components-basics#createcomponent
PR Close#38717
This commit introduces a new option for the service worker, called
`navigationRequestStrategy`, which adds the possibility to force the service worker
to always create a network request for navigation requests.
This enables the server redirects while retaining the offline behavior.
Fixes#38194
PR Close#38565
This commit refactors the `ExpressionTranslatorVisitor` so that it
is not tied directly to the TypeScript AST. Instead it uses generic
`TExpression` and `TStatement` types that are then converted
to concrete types by the `TypeScriptAstFactory`.
This paves the way for a `BabelAstFactory` that can be used to
generate Babel AST nodes instead of TypeScript, which will be
part of the new linker tool.
PR Close#38775
Previously each identifier was being imported individually, which made for a
very long import statement, but also obscurred, in the code, which identifiers
came from the compiler.
PR Close#38775
This file contains a number of classes making it long and hard to work with.
This commit splits the `ImportManager`, `Context` and `TypeTranslatorVisitor`
classes, along with associated functions and types into their own files.
PR Close#38775
When the target of the compiler is ES2015 or newer then we should
be generating `let` and `const` variable declarations rather than `var`.
PR Close#38775
Using an interface makes the code cleaner and more readable.
This change also adds the `range` property to the type to be used
for source-mapping.
PR Close#38775
The cast to `ts.Identifier` was a hack that "just happened to work".
The new approach is more robust and doesn't have to undermine
the type checker.
PR Close#38775
Let's say we have a code like
```html
<div<span>123</span>
```
Currently this gets parsed into a tree with the element tag `div<span`.
This has at least two downsides:
- An incorrect diagnostic that `</span>` doesn't close an element is
emitted.
- A consumer of the parse tree using it for editor services is unable to
provide correct completions for the opening `<span>` tag.
This patch attempts to fix both issues by instead parsing the code into
the same tree that would be parsed for `<div></div><span>123</span>`.
In particular, we do this by optimistically scanning an open tag as
usual, but if we do not notice a terminating '>', we mark the tag as
"incomplete". A parser then emits an error for the incomplete tag and
adds a synthetic (recovered) element node to the tree with the
incomplete open tag's name.
What's the downside of this? For one, a breaking change.
<ol>
<li>
The first breaking change is that `<` symbols that are ambiguously text
or opening tags will be parsed as opening tags instead of text in
element bodies. Take the code
```html
<p>a<b</p>
```
Clearly we cannot have the best of both worlds, and this patch chooses
to swap the parsing strategy to support the new feature. Of course, `<`
can still be inserted as text via the `<` entity.
</li>
</ol>
Part of #38596
PR Close#38681
This commit re-enables some tests that were temporarily disabled on Windows,
as they failed on native Windows CI. The Windows filesystem emulation has
been corrected in an earlier commit, such that the original failure would
now also occur during emulation on Linux CI.
PR Close#37782
JoostK
Kristiyan Kostadinov
Keen Yee Liau
Eduard Bondarenko
Alex Rickabaugh
Andrew Scott
Andrew Kushnir
ayazhafiz
JiaLiPassion
Igor Minar
Bjarki
Michael Ziluck
Alan Agius
Thibaut ACKERMANN
twerske
Pete Bacon Darwin
Jack Reed
pmartijena
AleksanderBodurri
Joey Perrott
Misko Hevery
Keen Yee Liau
mcalmus
Jessica Janiuk
George Kalpakas
Adam Plumer
Adrien Crivelli
Taymon A. Beal
Greg Magolan
Doug Parker
Kizashi Nagata
Nihal
Ajit Singh
Zack Elliott
Benjamin Qin
lazarljubenovic
Charles Lyding
Zack Birkenbuel
Dan Russell
Andrea Canciani
Andrew Scott
Dirk Luijk
Adrian Rutkowski
klemenoslaj