`NgCompiler` is the heart of ngtsc and can be used to analyze and compile
Angular programs in a variety of environments. Most of these integrations
rely on `NgProgram` and the creation of an `NgCompilerHost` in order to
create a `ts.Program` with the right shape for `NgCompiler`.
However, certain environments (such as the Angular Language Service) have
their own mechanisms for creating `ts.Program`s that don't make use of a
`ts.CompilerHost`. In such environments, an `NgCompilerHost` does not make
sense.
This commit breaks the dependency of `NgCompiler` on `NgCompilerHost` and
extracts the specific interface of the host on which `NgCompiler` depends
into a new interface, `NgCompilerAdapter`. This interface includes methods
from `ts.CompilerHost`, the `ExtendedTsCompilerHost`, as well as APIs from
`NgCompilerHost`.
A consumer such as the language service can implement this API without
needing to jump through hoops to create an `NgCompilerHost` implementation
that somehow wraps its specific environment.
PR Close#37118
When the compiler encounters a function call within an NgModule imports
section, it attempts to resolve it to an NgModule-annotated class by
looking at the function body and evaluating the statements there. This
evaluation can only understand simple functions which have a single
return statement as their body. If the function the user writes is more
complex than that, the compiler won't be able to understand it and
previously the PartialEvaluator would return a "DynamicValue" for
that import.
With this change, in the event the function body resolution fails the
PartialEvaluator will now attempt to use its foreign function resolvers to
determine the correct result from the function's type signtaure instead. If
the function is annotated with a correct ModuleWithProviders type, the
compiler will be able to understand the import without static analysis of
the function body.
PR Close#37126
If we detect that an injectable class is inheriting from another injectable, we generate code that looks something like this:
```
const baseFactory = ɵɵgetInheritedFactory(Child);
@Injectable()
class Parent {}
@Injectable()
class Child extends Parent {
static ɵfac = (t) => baseFactory(t || Child)
}
```
This usually works fine, because the `ɵɵgetInheritedFactory` resolves to the factory of `Parent`, but the logic can break down if the `Child` class has a custom decorator. Custom decorators can return a new class that extends the original once, which means that the `ɵɵgetInheritedFactory` call will now resolve to the factory of the `Child`, causing an infinite loop.
These changes fix the issue by changing the inherited factory resolution logic so that it walks up the prototype chain class-by-class, while skipping classes that have the same factory as the class that was passed in.
Fixes#35733.
PR Close#37022
Rename bazel workspace from npm_dev_infra to npm_angular_dev_infra_private to make it clear that this package is private to angular.
Change driver-utilities module_name to match the new bazel workspace name.
Correct a comment by rewording it from "deployed version" to "published version".
Fix merge conflicts in tmpl-package.json
Make "//packages/bazel/src:esm5.bzl" replacement more generalized so that importing from "//packages/bazel" works.
Deleted "dev_infra/*" path from modules/benchmarks tsconfig.
Moved //dev-infra/benchmark/browsers to //dev-infra/browsers.
PR Close#36800
Use an explicit type guard when checking if a given object is of type AbstractControlOptions,
instead of a simple function returning a boolean value. This allows us to remove manual type
casting when using this function, relying instead on TypeScript to infer correct types.
PR Close#32541
In v9, we started showing a console warning when
instantiating a token that inherited its @Injectable
decorator rather than providing its own. This warning
said that the pattern would become an error in v10.
However, we have decided to wait until at least v11
to throw in this case, so this commit updates the
warning to be less prescriptive about the exact
version when the pattern will no longer be supported.
PR Close#37383
Currently, if an ngcc process is killed in a manner that it doesn't clean
up its lock file (or is killed too quickly) the compiler reports that it
is waiting on the PID of a process that doesn't exist, and that it will
wait up to a maximum of N seconds. This PR updates the locking code to
additionally check if the process exists, and if it does not it will
immediately bail out, and print the location of the lock file so a user
may clean it up.
PR Close#37250
Remove `looseIdentical` implementation and instead use the ES2015 `Object.is` in its place.
They behave exactly the same way except for `+0`/`-0`.
`looseIdentical(+0, -0)` => `true`
`Object.is(+0, -0)` => `false`
Other than the difference noted above, this is not be a breaking change because:
1. `looseIdentical` is a private API
2. ES2015 is listed as a mandatory polyfill in the [browser support
guide](https://angular.io/guide/browser-support#mandatory-polyfills)
3. Also note that `Ivy` already uses `Object.is` in `bindingUpdated`.
PR Close#37191
This commit disables the tests for Ivy version of language service on CI
because the compiler APIs are not yet stable, so language service should
not assert against its behavipr.
PR Close#37348
Inline source-maps in typings files can impact IDE performance
so ngcc should only add such maps if the original typings file
contains inline source-maps.
Fixes#37324
PR Close#37363
Previously there was a typo in a comment within the PropDecorator function relating to and justifying the use of Object.defineProperty. This PR clears up the wording that comment
PR Close#37369
Due to an outage with the proxy we rely on for publishing, we need
to temporarily directly publish to NPM using our own angular
credentials again.
PR Close#37378
In #37221 we disabled tsickle passes from transforming the tsc output that is used to publish all
Angular framework and components packages (@angular/*).
This change however revealed a bug in the ngc that caused __decorate and __metadata calls to still
be emitted in the JS code even though we don't depend on them.
Additionally it was these calls that caused code in @angular/material packages to fail at runtime
due to circular dependency in the emitted decorator code documeted as
https://github.com/microsoft/TypeScript/issues/27519.
This change partially rolls back #37221 by reenabling the decorator to static fields (static
properties) downleveling.
This is just a temporary workaround while we are also fixing root cause in `ngc` - tracked as
FW-2199.
Resolves FW-2198.
Related to FW-2196
PR Close#37317
This commit adds a link to the Bazel prototype for orchestrating
multiple CLI architects and also adds a link to the #angular channel in
the Bazel Slack workspace.
PR Close#37190
This commit removes the integration test for schematics in
`@angular/bazel` that is used to generate a Bazel builder. The Bazel
builder has been deprecated.
PR Close#37190
Before the introduction of the Ivy renderer, users would compile
their applications and use the resulting factories for SSR, since
these post-compilation artifacts ensured faster delivery. Thus,
using the original module as the rendering entrypoint was
considered suboptimal and was discouraged.
However, with the introduction of Ivy, this guidance is no longer
applicable since these factories are no longer generated.
Comparable speed is achieved using the factory-less module
renderer, and so we update the guiance in the docs for the method.
PR Close#37296
As of TypeScript 3.9, the tsc emit is not compatible with Closure
Compiler due to
https://github.com/microsoft/TypeScript/pull/32011.
There is some hope that this will be fixed by a solution like the one
proposed in
https://github.com/microsoft/TypeScript/issues/38374 but currently it's
unclear if / when that will
happen.
Since the Closure support has been somewhat already broken, and the
tsickle pass has been a source
of headaches for some time for Angular packages, we are removing it for
now while we rethink our
strategy to make Angular Closure compatible outside of Google.
This change has no effect on our Closure compatibility within Google
which work well because all the
code is compiled from sources and passed through tsickle.
This change only disables the tsickle pass but doesn't remove it.
A follow up PR should either remove all the traces of tscikle or
re-enable the fixed version.
BREAKING CHANGE: Angular npm packages no longer contain jsdoc comments
to support Closure Compiler's advanced optimizations
The support for Closure compiler in Angular packages has been
experimental and broken for quite some
time.
As of TS3.9 Closure is unusable with the JavaScript emit. Please follow
https://github.com/microsoft/TypeScript/issues/38374 for more
information and updates.
If you used Closure compiler with Angular in the past, you will likely
be better off consuming
Angular packages built from sources directly rather than consuming the
version we publish on npm
which is primarily optimized for Webpack/Rollup + Terser build pipeline.
As a temporary workaround you might consider using your current build
pipeline with Closure flag
`--compilation_level=SIMPLE`. This flag will ensure that your build
pipeline produces buildable and
runnable artifacts, at the cost of increased payload size due to
advanced optimizations being disabled.
If you were affected by this change, please help us understand your
needs by leaving a comment on https://github.com/angular/angular/issues/37234.
PR Close#37221
Update docs in the micro benchmarks to include:
* How to run with no turbo inlining
* Where to find the profiles in the DevTools
* Best way to debug benchmarks (using the profile_in_browser rather than --inspect-brk)
PR Close#37140
In ES2015 IIFE wrapped classes, the identifier that would reference the class
of the NgModule may be an alias variable. Previously the `Esm2015ReflectionHost`
was not able to match this alias to the original class declaration. This resulted
in failing to identify some `ModuleWithProviders` functions in such case.
These IIFE wrapped classes were introduced in TypeScript 3.9, which is why
this issue is only recently appearing. Since 9.1.x does not support TS 3.9
there is no reason to backport this commit to that branch.
Fixes#37189
PR Close#37206
To better check that the code is working, this commit gives a
distinct name (`DecoratedWrappedClass_1`) to the "adjacent"
class declaration in the tests.
PR Close#37206
Previously, the correct behavior of Angular custom elements relied on
the constructor being called (and thus the `injector` property being
initialized). However, some polyfills (e.g. `document-register-element`)
do not call the constructor of custom elements, which resulted in the
`injector` property being undefined and the `NgElementStrategy` failing
to be instantiated.
This commit fixes it by being tolerant to the `injector` property being
undefined and falling back to the injector passed to the
`createCustomElement()` config.
NOTE:
We don't have proper tests exercising the situation where the
constructor is not called. For now this is tested using a Google
internal test suite (which is how this issue was caught).
This commit also adds a rudimentary unit test to emulate this situation.
PR Close#36114
Previously, if an element started out as a regular `HTMLElement` (not a
Custom Element) and was later upgraded to a Custom Element, any
properties corresponding to component inputs that were set on the
element before upgrading it would not be captured correctly and thus not
reflected on the instantiated component.
This commit fixes it by ensuring that such properties are captured
correctly.
Jira issue: [FW-2006](https://angular-team.atlassian.net/browse/FW-2006)
Fixes#30848Closes#31416
PR Close#36114
Previously, the `TestStrategy` `NgElementStrategy` used in
`createCustomElement()` tests was created once and re-used in each test
(due to complications related to how `customElements.register()` works).
As a result, the `TestStrategy` instance's state (e.g. inputs) could be
polluted from previous tests and affect subsequent ones.
This commit ensures the strategy instance is reset before each test.
PR Close#36114
Previously, helper modules/components classes were declared even if the
tests were not run (because the environment did not support Custom
Elements for example).
This commit moves the declaration of the helpers inside the `describe()`
block, so they are not declared unnecessarily. This is in preparation of
adding more helpers that need to access variables declared inside the
`describe()` block.
PR Close#36114
Previously, we had to check whether `NgElementStrategy` had been
instantiated before accessing it. This was tedious and error prone,
since it was easy to forget to add the check in new call sites.
This commit switches to using a getter, so that the check has to be
performed in one place and is transparent to call sites (including any
future ones).
PR Close#36114
`createCustomElements()` creates some getters/setters for properties
corresponding to component inputs that delegate to the
`NgElementStrategy`. However, it is not guaranteed that the element's
`NgElementStrategy` will have been created when these getters/setters
are called, because some polyfills (e.g. `document-register-element`) do
not call the constructor.
Previously, trying to get/set input properties before connecting the
element to the DOM (via `connectedCallback()`) would fail due to
`NgElementStrategy` not being created.
This commit ensures that the `NgElementStrategy` is always created
before used inside the input property getters/setters (similar to how it
is done for other methods of `NgElement`).
Mentioned in https://github.com/angular/angular/pull/31416/files#r300326698.
PR Close#36114
Tslib version is bound to the TypeScript version used to compile the library. Thus, we shouldn't list `tslib` as a `peerDependencies`. This is because, a user can install libraries which have been compiled with older versions of TypeScript and thus require multiple `tslib` versions to be installed.
Reference: TOOL-1374 and TOOL-1375
Closes: #37188
PR Close#37198
This commit removes the `bootstrap()` function in the test project since
its presence has no effect on the behavior of language service.
Also removes the explicit cast when instantiating `CounterDirectiveContext`,
and let type inference takes care of that.
PR Close#37122
PR #13380 added support for `null` and `undefined` but the type on the parameter was not updated.
This would result in a compilation error if `fullTemplateTypeCheck` is enabled.
Fixes#36544
PR Close#37018
The work to support case-sensitivity in the `FileSystem` went too far
with the `LogicalFileSystem`, which is used to compute import paths
that will be added to files processed by ngtsc and ngcc.
Previously all logical paths were canonicalised, which meant that on
case-insensitive file-systems, the paths were all set to lower case.
This resulted in incorrect imports being added to files. For example:
```
import { Apollo } from './Apollo';
import { SelectPipe } from './SelectPipe';
import * as ɵngcc0 from '@angular/core';
import * as ɵngcc1 from './selectpipe';
```
The import from `./SelectPipe` is from the original file, while the
import from `./selectpipe` is added by ngcc. This causes the
TypeScript compiler to complain, or worse for paths not to be
matched correctly.
Now, when computing logical paths, the original absolute paths
are matched against rootDirs in a canonical manner, but the actual
logical path that is returned maintains it original casing.
Fixes#36992, #36993, #37000
PR Close#37008
With this change we drop support for TypeScript 3.8 and remove all related tests.
BREAKING CHANGE:
TypeScript 3.8 is no longer supported, please update to TypeScript 3.9.
PR Close#37129
Previously all static styling information (including the ones from component/directive host bindings) would get merged into a single value before it would be written into the `@Input('class'/'style')`. The new behavior specifically excludes host values from the `@Input` bindings.
Fix#35383
PR Close#35889
Dynamic embedded views were conceptually different from inline embedded views, but we have since
removed the inline embedded views so we now only have "embedded views".
See related refactoring work to remove inline embedded views in #34715
and #37073.
PR Close#37117
If one component Parent inherit another component Base like the following:
@Component(...)
class Base {
constructor(@Inject(InjectionToken) injector: Injector) { }
}
@Component(...)
class Parent extends Base {
// no constructor
}
When creating Component Parent, the dependency injection should work on delegating ctors like above.
The code Parent code above will be compiled into something like:
class Parent extends Base {
constructor() {
super(...arguments);
}
}
The angular core isDelegateCtor function will identify the delegation ctor to the base class.
But when the code above is minified (using terser), the minified code will compress the spaces, resulting in something like:
class Parent extends Base{constructor(){super(...arguments)}}
The regex will stop working, since it wasn't aware of this case. So this fix will allow this to work in minified code cases.
PR Close#36962
The _tViewNode field (that was marked as internal) on the ViewRef is not
necessery as a reference to a relevant TView is available as a local
variable.
PR Close#36814
Andrew Scott
Alex Rickabaugh
crisbeto
Wagner Maciel
lazarljubenovic
Kara Erickson
Terence D. Honles
Markus Ende
Keen Yee Liau
Pete Bacon Darwin
AleksanderBodurri
Joey Perrott
Igor Minar
Adam
George Kalpakas
Alan Agius
m-ahmadi
Miško Hevery
Daniel Seibel Silva
pkozlowski-opensource
Andrew Kushnir