Previously in v9, we deprecated the pattern of undecorated base classes
that rely on Angular features. We ran a migration for this in version 9
and will run the same on in version 10 again.
To ensure that projects do not regress and start using the unsupported
pattern again, we report an error in ngtsc if such undecorated classes
are discovered.
We keep the compatibility code enabled in ngcc so that libraries
can be still be consumed, even if they have not been migrated yet.
Resolves FW-2130.
PR Close#36921
As of v10, undecorated classes using Angular features are no longer
supported. In v10, we plan on removing the undecorated classes
compatibility code in ngtsc. This means that old patterns for
undecorated classes will result in compilation errors.
We had a migration for this in v9 already, but it looks like
the migration does not handle cases where classes uses lifecycle
hooks. This is handled in the ngtsc compatibility code, and we
should handle it similarly in migrations too.
This has not been outlined in the migration plan initially,
but an appendix has been added for v10 to the plan document.
https://hackmd.io/vuQfavzfRG6KUCtU7oK_EA?both.
Note: The migration is unable to determine whether a given undecorated
class that only defines `ngOnDestroy` is a directive or an actual
service. This means that in some cases the migration cannot do
more than adding a TODO and printing an failure.
Certainly there are more ways to determine the type of such classes,
but it would involve metadata and NgModule analysis. This is out of
scope for this migration.
PR Close#36921
In v9, we deprecated the use of ModuleWithProviders
without a generic. In v10, we will be requiring the
generic when using ModuleWithProviders. You can read
more about the reasoning behind this change in the
migration guide:
http://v9.angular.io/guide/migration-module-with-providers
PR Close#36892
This patch is the first of many commits to disable sanitization for
[stlye.prop] and [style] bindings in Angular.
Historically, style-based sanitization has only been required for old
IE browsers (IE6 and IE7). Since Angular does not support these old
browsers at all, there is no reason for the framework to support
style-based sanitization.
PR Close#35621
We stopped publishing @angular/http to npm a while back (v7?), so from the perspective of our
customer @angular/http has been removed a long time ago and mentioninig it now that we actually
removed the code from our repo is just confusing.
PR Close#36944
Since we no longer hardcode the `package.json` for
entry-points, a bug has appeared for `ng_package` in Ivy.
The `package.json` files are populated incorrectly with Ivy
as the flat module bundle name is not propagated from `ng_module`
to the `ng_package` rule. The rule then guesses the index file
to `index.js` and does not respect the flat module bundle shim.
PR Close#36944
As mentioned in previous commits, as of v10 the release output
does no longer contain ESM5 output due to an update to the APF.
This means that the side-effect integration test needs to be
updated as it currently expects/tests esm5 output.
PR Close#36944
As of version 10, libraries following the APF will no longer contain
ESM5 output. Hence, tests in ngcc need to be updated as they currently
rely on the release output of `@angular/core`.
Additionally, we'd need to support in ngcc that the `module`
property of entry-points no longer necessarily refers to
`esm5` output, but instead can also target `esm2015`.
We currently achieve this by checking the path the `module`
property points to. We can do this because as per APF, the
folder name is known for the esm2015 output. Long-term for
more coverage, we want to sniff the format by looking for
known ES2015 constructs in the file `module` refers to.
PR Close#36944
In the past we added support for `ts_library` to `ng_package`. For those
targets we never can determine the "index" file. Unlike `ng_module`,
there is no provider data for flat module bundles, so the `ng_package`
rule assumes that the index file is simply called `index`.
This works as expected, but we also added logic in the past that doesn't
allow `ng_package` to add format properties (e.g. `main`, `module`) to a
`package.json` if a package json is handwritten for such a `ts_library` target.
This has been done that way because we assumed that such `package.json` files
might want to set format properties explicitly to different paths due to a
faulty "index" guess.
We want to change this behavior as most of the time a `package.json`
file already exists with just the module name. In those cases, the
packager should still set the format properties. We should only warn
and skip automatic insertion of the format properties if such a
`package.json` explicitly sets format properties.
PR Close#36944
We can remove all of the entry point resolution configuration from the package.json
in our source code as ng_package rule adds the properties automatically and correctly
configures them.
This change simplifies our code base but doesn't have any impact on the package.json
in the distributed npm_packages.
PR Close#36944
esm5 and fesm5 are no longer needed and have been deprecated in the past.
https://v9.angular.io/guide/deprecations#esm5-and-fesm5-code-formats-in-angular-npm-packages
This commit modifies ng_package to no longer distribute these two formats in npm packages
built by ng_package (e.g. @angular/core).
This commit intentionally doesn't fully clean up the ng_package rule to remove all traces of esm5 and fems5
build artifacts as that is a bigger cleanup and currently we are narrowing down the scope of this change
to the MVP needed for v10, which in this case is 'do not put esm5 and fesm5' into the npm packages.
More cleanup to follow: https://angular-team.atlassian.net/browse/FW-2143
BREAKING CHANGE: esm5 and fesm5 format is no longer distributed in
Angular's npm packages e.g. @angular/core
If you are not using Angular CLI to build your application or library,
and you need to be able to build es5 artifacts, then you will need to
downlevel the distributed Angular code to es5 on your own.
Angular CLI will automatically downlevel the code to es5 if differential
loading is enabled in the Angular project, so no action is required from
Angular CLI users.
PR Close#36944
In #36892 the `ModuleWithProviders` type parameter becomes required.
This exposes a bug in ngcc, where it can only handle functions that have a
specific form:
```
function forRoot() {
return { ... };
}
```
In other words, it only accepts functions that return an object literal.
In some libraries, the function instead returns a call to another function.
For example in `angular-in-memory-web-api`:
```
InMemoryWebApiModule.forFeature = function (dbCreator, options) {
return InMemoryWebApiModule_1.forRoot(dbCreator, options);
};
```
This commit changes the parsing of such functions to use the
`PartialEvaluator`, which can evaluate these more complex function
bodies.
PR Close#36948
Previously this method was implemented on the `NgccReflectionHost`,
but really it is asking too much of the host, since it actually needs to do
some static evaluation of the code to be able to support a wider range
of function shapes. Also there was only one implementation of the method
in the `Esm2015ReflectionHost` since it has no format specific code in
in.
This commit moves the whole function (and supporting helpers) into the
`ModuleWithProvidersAnalyzer`, which is the only place it was being used.
This class will be able to do further static evaluation of the function bodies
in order to support more function shapes than the host can do on its own.
The commit removes a whole set of reflection host tests but these are
already covered by the tests of the analyzer.
PR Close#36948
The purpose of the `WrappedValue` is to allow same object instance to be treated as different for the purposes of change detection. It is currently used with `async` pipe and only with `Observables`. The use case which it covers is if the `Observable` produces the same instance of the value but it is desirable to still try to mark it as changed for the purposes of change detection.
We believe tha the above use case is too rare to warrant special handling in the framework. (Having special handling causes application slowdown for the users and mental load for the developers.) No replacement is planned for this deprecation.
PR Close#36819
This optimization builds on a lot of prior work to finally make type-
checking of templates incremental.
Incrementality requires two main components:
- the ability to reuse work from a prior compilation.
- the ability to know when changes in the current program invalidate that
prior work.
Prior to this commit, on every type-checking pass the compiler would
generate new .ngtypecheck files for each original input file in the program.
1. (Build #1 main program): empty .ngtypecheck files generated for each
original input file.
2. (Build #1 type-check program): .ngtypecheck contents overridden for those
which have corresponding components that need type-checked.
3. (Build #2 main program): throw away old .ngtypecheck files and generate
new empty ones.
4. (Build #2 type-check program): same as step 2.
With this commit, the `IncrementalDriver` now tracks template type-checking
_metadata_ for each input file. The metadata contains information about
source mappings for generated type-checking code, as well as some
diagnostics which were discovered at type-check analysis time. The actual
type-checking code is stored in the TypeScript AST for type-checking files,
which is now re-used between programs as follows:
1. (Build #1 main program): empty .ngtypecheck files generated for each
original input file.
2. (Build #1 type-check program): .ngtypecheck contents overridden for those
which have corresponding components that need type-checked, and the
metadata registered in the `IncrementalDriver`.
3. (Build #2 main program): The `TypeCheckShimGenerator` now reuses _all_
.ngtypecheck `ts.SourceFile` shims from build #1's type-check program in
the construction of build #2's main program. Some of the contents of
these files might be stale (if a component's template changed, for
example), but wholesale reuse here prevents unnecessary changes in the
contents of the program at this point and makes TypeScript's job a lot
easier.
4. (Build #2 type-check program): For those input files which have not
"logically changed" (meaning components within are semantically the same
as they were before), the compiler will re-use the type-check file
metadata from build #1, and _not_ generate a new .ngtypecheck shim.
For components which have logically changed or where the previous
.ngtypecheck contents cannot otherwise be reused, code generation happens
as before.
PR Close#36211
As a performance optimization, this commit splits the single
__ngtypecheck__.ts file which was previously added to the user's program as
a container for all template type-checking code into multiple .ngtypecheck
shim files, one for each original file in the user's program.
In larger applications, the generation, parsing, and checking of this single
type-checking file was a huge performance bottleneck, with the file often
exceeding 1 MB in text content. Particularly in incremental builds,
regenerating this single file for the entire application proved especially
expensive.
This commit introduces a new strategy for template type-checking code which
makes use of a new interface, the `TypeCheckingProgramStrategy`. This
interface abstracts the process of creating a new `ts.Program` to type-check
a particular compilation, and allows the mechanism there to be kept separate
from the more complex logic around dealing with multiple .ngtypecheck files.
A new `TemplateTypeChecker` hosts that logic and interacts with the
`TypeCheckingProgramStrategy` to actually generate and return diagnostics.
The `TypeCheckContext` class, previously the workhorse of template type-
checking, is now solely focused on collecting and generating type-checking
file contents.
A side effect of implementing the new `TypeCheckingProgramStrategy` in this
way is that the API is designed to be suitable for use by the Angular
Language Service as well. The LS also needs to type-check components, but
has its own method for constructing a `ts.Program` with type-checking code.
Note that this commit does not make the actual checking of templates at all
_incremental_ just yet. That will happen in a future commit.
PR Close#36211
Shim generation was built on a lie.
Shims are files added to the program which aren't original files authored by
the user, but files authored effectively by the compiler. These fall into
two categories: files which will be generated (like the .ngfactory shims we
generate for View Engine compatibility) as well as files used internally in
compilation (like the __ng_typecheck__.ts file).
Previously, shim generation was driven by the `rootFiles` passed to the
compiler as input. These are effectively the `files` listed in the
`tsconfig.json`. Each shim generator (e.g. the `FactoryGenerator`) would
examine the `rootFiles` and produce a list of shim file names which it would
be responsible for generating. These names would then be added to the
`rootFiles` when the program was created.
The fatal flaw here is that `rootFiles` does not always account for all of
the files in the program. In fact, it's quite rare that it does. Users don't
typically specify every file directly in `files`. Instead, they rely on
TypeScript, during program creation, starting with a few root files and
transitively discovering all of the files in the program.
This happens, however, during `ts.createProgram`, which is too late to add
new files to the `rootFiles` list.
As a result, shim generation was only including shims for files actually
listed in the `tsconfig.json` file, and not for the transitive set of files
in the user's program as it should.
This commit completely rewrites shim generation to use a different technique
for adding files to the program, inspired by View Engine's shim generator.
In this new technique, as the program is being created and `ts.SourceFile`s
are being requested from the `NgCompilerHost`, shims for those files are
generated and a reference to them is patched onto the original file's
`ts.SourceFile.referencedFiles`. This causes TS to think that the original
file references the shim, and causes the shim to be included in the program.
The original `referencedFiles` array is saved and restored after program
creation, hiding this little hack from the rest of the system.
The new shim generation engine differentiates between two kinds of shims:
top-level shims (such as the flat module entrypoint file and
__ng_typecheck__.ts) and per-file shims such as ngfactory or ngsummary
files. The former are included via `rootFiles` as before, the latter are
included via the `referencedFiles` of their corresponding original files.
As a result of this change, shims are now correctly generated for all files
in the program, not just the ones named in `tsconfig.json`.
A few mitigating factors prevented this bug from being realized until now:
* in g3, `files` does include the transitive closure of files in the program
* in CLI apps, shims are not really used
This change also makes use of a novel technique for associating information
with source files: the use of an `NgExtension` `Symbol` to patch the
information directly onto the AST object. This is used in several
circumstances:
* For shims, metadata about a `ts.SourceFile`'s status as a shim and its
origins are held in the extension data.
* For original files, the original `referencedFiles` are stashed in the
extension data for later restoration.
The main benefit of this technique is a lot less bookkeeping around `Map`s
of `ts.SourceFile`s to various kinds of data, which need to be tracked/
invalidated as part of incremental builds.
This technique is based on designs used internally in the TypeScript
compiler and is serving as a prototype of this design in ngtsc. If it works
well, it could have benefits across the rest of the compiler.
PR Close#36211
The compiler needs to track the dependencies of a component, including any
NgModules which happen to be present in a component's scope. If an upstream
NgModule changes, any downstream components need to have their templates
re-compiled and re-typechecked.
Previously, the compiler handled this well for the A -> B -> C case where
module A imports module B which re-exports module C. However, it fell apart
in the A -> B -> C -> D case, because previously tracking focused on changes
to components/directives in the scope, and not NgModules specifically.
This commit introduces logic to track which NgModules contributed to a given
scope, and treat them as dependencies of any components within.
This logic also contains a bug, which is intentional for now. It
purposefully does not track transitive dependencies of the NgModules which
contribute to a scope. If it did, using the current dependency system, this
would treat all components and directives (even those not exported into the
scope) as dependencies, causing a major performance bottleneck. Only those
dependencies which contributed to the module's export scope should be
considered, but the current system is incapable of making this distinction.
This will be fixed at a later date.
PR Close#36211
Add a mechanism to replace file contents for a specific file. This
allows us to write custom test scenarios in code without modifying the
test project.
Since we are no longer mocking the language service host, the file
overwrite needs to happen via the project service.
Project service manages a set of script infos, and overwriting the files
is a matter of updating the relevant script infos.
Note that the actual project service is wrapped inside a Mock Service.
Tests should not have direct access to the project service. All
manipulations should take place via the Mock Service.
The MockService provides a `reset()` method to undo temporary overwrites
after each test.
PR Close#36923
Previously, some preview server tests were only running for public
builds. In the past, these tests were run for both public and non-public
builds. The non-public builds tests were disabled in #23576, probably
during debugging some failure.
This commit fixes it by ensuring the tests are run for both public and
non-public builds.
PR Close#36837
The test was introduced in #23576, but the behavior the test was
verifying does not match the actual behavior of
`BuildCleaner#getOpenPrNumbers()`.
The reason that the test did not fail is that the verification happened
asynchronously, but the test completed synchronously (by accident).
PR Close#36837
Previously, when the preview server `build-cleanup` script failed, the
error was logged but not reflected to the commands exit code. This seems
to have been accidentally broken in #23576.
This commit fixes it by ensuring the error is re-thrown from the
`BuildCleaner#cleanUp()` method to allow the process to exit with an
error exit code.
PR Close#36837
Previously, the `dev` npm script in `aio/aio-builds-setup/scripts-js/`
(the PR preview server implementation) would run both linting and unit
tests. This was slow and delayed the feedback loop on each change.
Since the `dev` script should be run during development and give
feedback as fast as possible, this commit removes the linting from the
`dev` script and only keeps the unit tests. Linting is still run in the
`test` npm script (which is more comprehensive). Also, in most cases the
developer's IDE will show linting errors in real time in the editor.
PR Close#36837
Update the order in which the `update-preview-server.sh` script expects
its arguments (and the associated docs) to be consistent with the order
of arguments in other commands/docs (such as
`vm-setup--start-docker-container.md`).
PR Close#36837
I recently went through the process of setting up a preview server VM
again and updated the instructions and references based on the latest
docs for Debian, Docker, Google Compute Engine, etc.
PR Close#36837
Previously, in order to remain as deterministic as possible, the
Dockerfile for the preview server Docker image had all dependencies
pinned to specific versions. It turns out that some packages (such as
`nginx`, `nodejs`, and `openssl` - potentially others too) make older
versions unavailable on the repositories once a newer version is
available.
See for example:
- https://github.com/nodesource/distributions/issues/33
- https://askubuntu.com/questions/715104/how-can-i-downgrade-openssl-via-apt-get
This commit, therefore, removes the exact versions for these packages.
The latest versions will be installed everytime the Docker image is
built (subject to Docker caching).
PR Close#36837
In order to ease local development, self-signed SSL/TLS certificates are
created when building the preview server Docker image. These
certificates are valid for 365 days. Thus, it is possible for an old
certificate to be re-used past its expiration date due to Docker's
caching intermediate layers.
Previously, this would lead to hard-to-debug failures in the
`aio-health-check` and `aio-verify-setup` checks. Even after finding out
that the failures were caused by an expired certificate, it was not
obvious why that would be the case.
This commit adds an additional check to the `aio-health-check` command
that checks the certificates' expiration dates. This helps surface such
errors. It also prints a more helpful message, prompting the user to
build the Docker image with the `--no-cache` option to fix the problem
with self-signed certificates.
PR Close#36837
Previously, the preview server Docker image was based on Debian 9
(stretch).
This commit upgrades the preview server Docker image to Debian 10
(buster) and also upgrades all dependencies to latest versions
(including upgrading Node.js from v10 to v12).
(The GCE VM running the preview server Docker container was also
upgraded from Debian 9 to 10 on 2020-04-27.)
---
Other changes:
- Pinned the installed version of `curl` to make the `aio-health-check`
and `aio-verify-setup` checks (which use `curl`) more deterministic.
- Dropped the `*-backports` Debian repositories, since they are no
longer needed. The `*-backports` repositories were introduced in
593fe5ed25 to install `nginx` from, but
became obsolete in 2f1a862b83, which
switched to installing `nginx` from the regular repositories again.
- Added `vim` to the list of installed dependencies (for convenience
during debugging).
PR Close#36837
This commit upgrades all dependencies in `scripts-js/` to latest
versions and also includes all necessary code changes to ensure the
tests are passing with the new dependency versions.
PR Close#36837
The legacy HTTP package was deprecated in v5 with the launch of
@angular/common/http. The legacy package hasn't been published
since v7, and will therefore not include a migration.
PR Close#27038
Remove TypeScript 3.6 and 3.7 support from Angular along with tests that
ensure those TS versions work.
BREAKING CHANGE: typescript 3.6 and 3.7 are no longer supported, please
update to typescript 3.8
PR Close#36329
The current benchmark for transplanted views only exercises the path
when the declaration location is dirty and the insertion is not. This
test adds a benchmark for when both insertion and declaration are dirty.
PR Close#36722
This commit fixes 2 separate issues related to root nodes retrieval from
embedded views with `<ng-content>`:
1) we did not account for the case where there were no projectable nodes
for a given `<ng-content>`;
2) we did not account for the case where projectable nodes for a given
`<ng-content>` were represented as an array of native nodes (happens in
the case of dynamically created components with projectable nodes);
Fixes#35967
PR Close#36051
A caching mechanism was put in place to prevent repeated calls to
the Github API. As the CI setup no longer relies on calls to the
Github API, this caching is no longer necessary.
It was discovered that this caching was causing a contention issue
for saucelabs testing as the same tunnel was being reused for
multiple jobs simultaneously. With this caching mechanism removed
the jobs will once again run via separate tunnels.
PR Close#36936
The `elements` tests were disabled on Saucelabs, because they were failing on IE10. The problem was that we were loading an es2015 file from npm directly, causing a syntax error. These changes transpile the file to es5.
PR Close#36929
Parse Angular compiler options in Angular language service.
In View Engine, only TypeScript compiler options are read, Angular
compiler options are not. With Ivy, there could be different modes of
compilation, most notably how strict the templates should be checked.
This commit makes the behavior of language service consistent with the
Ivy compiler.
PR Close#36922
Disables Bazel runfile tree creation. Only if a given
execution strategy relies on runfile tree creation, the
runfile tree is created lazily. This helps as currently
Bazel spends unnecessary time on CI building runfile trees
for tests which are cached and aren't re-run.
The goal is to spend less time on CI for cached test/build
targets. We can't measure impact yet as there are targets
for the integration tests that hide the potential benefits.
on the components repo a 80% time reduction could be observed.
PR Close#36914
Previously we were passing a string form of the value to pluralize
to the `getLocalePluralCase()` function that is extracted from the
locale data. But some locales have functions that rely upon this
value being a number not a string.
Now we convert the value to a number before passing it to the
locale data function.
Fixes#36888
PR Close#36901
Previously, using undecorated base classes and using
ModuleWithProviders without a generic were listed
as deprecated features.
In v10, these features will be removed and an error
will be thrown instead. This commit updates the
deprecation guide to reflect this change.
PR Close#36891
The index of the deprecation guide contains a list
of deprecated APIs and when they can be removed.
This commit updates the likely removal version for
APIs that were previously listed as v10, as we are
not removing them in this version.
PR Close#36891
Add documentation in the deprecations markdown file about the deprecation of IE 9 and 10.
Additionally, add note in browser support document about deprecation.
PR Close#36887
The `getLocation()` method was not working as there were typos in the
properties it was reading. This was not picked up because there were
neither typings for these properties nor unit tests to check it worked.
PR Close#36853
Paul Gschwendtner
Kara Erickson
Matias Niemelä
Igor Minar
Pete Bacon Darwin
Misko Hevery
Alex Rickabaugh
Keen Yee Liau
George Kalpakas
Adam Plumer
Andrew Scott
Pawel Kozlowski
Joey Perrott
crisbeto
Walter Werner SCHNEIDER
David Shevitz 🔵