The Angular compiler has to actively keep default import statements
alive if they were only used in type-only positions, but have been
emitted as value expressions for DI purposes. A problem occurred in
incremental recompilations, where the relationship between an identifier
usage and its corresponding default import would not be considered. This
could result in the removal of the default import statement and caused
a `ReferenceError` at runtime.
This commit fixes the issue by storing the association from an
identifier to its default import declaration on the source file itself,
instead of within the `DefaultImportTracker` instance. The
`DefaultImportTracker` instance is only valid for a single compilation,
whereas the association from an identifier to a default import
declaration is valid as long as the `ts.SourceFile` is the same
instance.
A subsequent commit refactor the `DefaultImportTracker` to no longer
be responsible for registering the association, as its lifetime is
conceptually too short to do so.
Fixes#41377
PR Close#41586
The `emitDecoratorMetadata` compiler option does not have to be enabled
as Angular decorators are transformed by the AOT compiler. Having the
option enabled in our tests can hide issues around import preservation,
as with `emitDecoratorMetadata` enabled the TypeScript compiler itself
does not elide imports even if they are only used in type-positions.
This is unlike having `emitDecoratorMetadata` disabled, however; in that
case the Angular compiler has to actively trick TypeScript into
retaining default imports when an identifier in a type-only position has
been reified into a value position for DI purposes.
A subsequent commit addresses a bug in default import preservation
that relies on this flag being `false`.
PR Close#41586
When multiple occurrences of the same package exist within a single
TypeScript compilation unit, TypeScript deduplicates the source files
by introducing redirected source file proxies. Such proxies are
recreated during an incremental compilation even if the original
declaration file did not change, which caused the compiler not to reuse
any work from the prior compilation.
This commit changes the incremental driver to recognize a redirected
source file and treat them as their unredirected source file.
PR Close#41587
When an Ivy NgModule is imported into a View Engine build, it doesn't have
metadata.json files that describe it as an NgModule, so it appears to VE
builds as a plain, undecorated class. The error message shown in this
situation generic and confusing, since it recommends adding an @NgModule
annotation to a class from a library.
This commit adds special detection into the View Engine compiler to give a
more specific error message when an Ivy NgModule is imported.
PR Close#41534
Fix unexpected error when following the tutorial (when going through it with stricter type checking enforced). While (+) converts a string to an integer, it does not account for the possibility that `this.route.snapshot.paramMap.get('id')` could return null (type: string | null). Since this null case is not a practical outcome, it is a matter of types; switching from (+) to the `Number` function eliminates this issue, making the tutorial more robust.
PR Close#41570
Creates a singleton class for GitClient rather than relying on creating an instance to
require being passed around throughout its usages.
PR Close#41589
In environments such as the Language Service where inline type-checking code
is not supported, the compiler would previously produce a diagnostic when a
template would require inlining to check. This happened whenever its
component class had generic parameters with bounds that could not be safely
reproduced in an external TCB. However, this created a bad user experience
for the Language Service, as its features would then not function with such
templates.
Instead, this commit changes the compiler to use the same strategy for
inline TCBs as it does for inline type constructors - falling back to `any`
for generic types when inlining isn't available. This allows the LS to
support such templates with slightly weaker type-checking semantics, which
a test verifies. There is still a case where components that aren't
exported require an inline TCB, and the compiler will still generate a
diagnostic if so.
Fixes#41395
PR Close#41513
Fixes an error that will be thrown if `DebugRenderer2.destroyNode` is called with a node that has already been destroyed. The error happened, because we had a non-null assertion, even though the value can be null.
Note that this fix applies only to ViewEngine, because Ivy doesn't provide the `DebugRenderer2`. I decided to resolve it, because it fix is straightforward and this error has been showing up in our logs for a long time now, making actual errors harder to find.
PR Close#41565
During merging with `ng-dev pr merge` tooling will ensure that pull requests are
properly labeled for breaking changes. Pull requests with commits noting breaking
changes must also be labeled as such, additionally pull requests with breaking
change labels must contain commits noting breaking changes.
Fixes#38776
PR Close#41546
This commit removes the line to set `currentNavigation` to `null` in the
navigation transitions subscription of the router. This logic is
already handled in the `finalize` stage of the transition pipe and has
been found to cause issues if a new navigation is triggered from a
subscription to the `NavigationEnd` event.
fixes#37460
PR Close#41262
PR Close#41511
After updating to use the v4 graphql api in the merge tooling, the githubTargetBranch
was set to be the sha of the latest commit rather than the branch name of the target
branch. This caused our tooling to mismatch which branches were actually being targeted
with the effect that if a PR targeted only the patch branch (i.e. labeled `target: patch`
and targeting `11.2.x` in github)it would still expect to merge into both `11.2.x` and
`master`. This is now corrected to once again use the branch name, restoring to the
previous functionality.
PR Close#41523
When we deactivate a child route, we deactivate its outlet as well as
its children. We also need to clear the stored information about the
route and the associated component.
If we do not, the context will keep these references and can result in
reactivating an outlet that was deactivated by the previous navigation.
Fixes#41379
PR Close#41381
Previously, the search index info file contained an array of strings that is
the dictionary of terms in the corpus.
Storing this as a space separated string reduces the size of the file.
PR Close#41447
Rather than relying on a preinstall script, set `engine-strict` to `true` in a
project `.npmrc` file, relying on the `engines` having `npm` set to note that
yarn should be used instead.
---
Output from `npm install` changes from:
```
$ npm install
> angular-srcs@12.0.0-next.7 preinstall /usr/local/account/js/angular
> node tools/yarn/check-yarn.js
/usr/local/account/js/angular/tools/yarn/check-yarn.js:12
throw new Error(
^
Error: Please use Yarn instead of NPM to install dependencies. See: https://yarnpkg.com/lang/en/docs/install/
at Object.<anonymous> (/usr/local/account/js/angular/tools/yarn/check-yarn.js:12:9)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! angular-srcs@12.0.0-next.7 preinstall: `node tools/yarn/check-yarn.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the angular-srcs@12.0.0-next.7 preinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /usr/local/account/.npm/_logs/2021-04-06T22_54_02_292Z-debug.log
```
to
```
$ npm install
npm ERR! code ENOTSUP
npm ERR! notsup Unsupported engine for angular-srcs@12.0.0-next.7: wanted: {"node":">=10.19.0 <13.0.0","yarn":">=1.22.4 <2","npm":"Plesae use yarn instead of NPM to install dependencies"} (current: {"node":"10.20.1","npm":"6.14.4"})
npm ERR! notsup Not compatible with your version of node/npm: angular-srcs@12.0.0-next.7
npm ERR! notsup Not compatible with your version of node/npm: angular-srcs@12.0.0-next.7
npm ERR! notsup Required: {"node":">=10.19.0 <13.0.0","yarn":">=1.22.4 <2","npm":"Plesae use yarn instead of NPM to install dependencies"}
npm ERR! notsup Actual: {"npm":"6.14.4","node":"10.20.1"}
npm ERR! A complete log of this run can be found in:
npm ERR! /usr/local/account/.npm/_logs/2021-04-06T22_53_23_912Z-debug.log
```
PR Close#41477
* We had a usage of `Observable.subscribe` that uses the deprecated signature with 3 arguments. These changes switch to the non-deprecated version that passes in an `Observer`.
* Avoids always creating a `complete` callback since it isn't required.
* We were repeating all of the internal callbacks twice: once for sync and once for async. These changes move them out into variables so that they're more minifier-friendly. The savings aren't huge (~100 bytes minified), but it doesn't add any maintenance effort on our end so I decided to add it.
PR Close#41450
Add a property, `targetLabelExemptScopes`, to the merge configuration allowing certain
scopes to be exempted from requirements for features and breaking changes only included
in PRs targetting certain labels.
PR Close#41459
Check commits in pull requests to ensure the pr can be merged into the target branch. Confirms
that prs targeting minor do not contain breaking changes, and prs targeting patch or lts do not
contain breaking changes or `feat` commits.
PR Close#41459
Currently, we throw a FatalDiagnosticError when we fail to load a resource
(`templateUrl` or `styleUrl`) at various stages in the compiler. This prevents
analysis of the component from completing. This will result in in users not being
able to get any information in the component template when there is a missing
`styleUrl`, for example.
This commit simply tracks the diagnostic, marks the component as poisoned, and
continues merrily along. Environments configured to use poisoned data
(like the language service) will then be able to use other information from the analysis.
Fixes https://github.com/angular/vscode-ng-language-service/issues/1241
PR Close#41403
PR Close#41489
As the `test` and `refactor` commit types are not used in release notes and there
are solid use cases for having multiple scopes/scopeless uses of these types, they
are made to be optional instead of required on commits.
PR Close#41486
Previously, the `angular-in-memory-web-api` package was built in
`dist/packages-dist/misc/angular-in-memory-web-api/`. This was different
from other Angular packages, which were placed directly in
`dist/packages-dist/`. This caused the `create-package-archives.sh`
script to create an invalid `misc.tgz` archive (i.e. treating the
`misc/` subdirectory as a package).
See, for example, the artifacts [here][1].
This commit changes the build scripts to have the
`angular-in-memory-web-api` package built in
`dist/angular-in-memory-web-api-dist/`, similar to how the `zone.js`
package is handled. It also updates the CircleCI config to correctly
publish the `angular-in-memory-web-api` package to CI build artifacts.
[1]: https://circleci.com/gh/angular/angular/951491
PR Close#41429
PR Close#41471
This commit updates the `build-ivy-npm-packages.js` script to also build
the `angular-in-memory-web-api` package. This could be used if someone
wanted to test the Ivy packages in docs examples or an integration test.
PR Close#41429
PR Close#41471
This commit makes the build scripts for the various packages (framework,
`@angular/dev-infra-private`, `angular-in-memory-web-api`, `zone.js`)
consistent. This makes it easier to maintain them (e.g. make similar
changes across all build scripts).
PR Close#41429
PR Close#41471
This commit enables linting for the scripts in
`aio/tools/ng-packages-installer/`. It also makes the necessary changes
to the files to make linting pass.
PR Close#41429
PR Close#41471
This commit updates the `eslint` and `eslint-plugin-jasmine` packages to
latest versions to take advantage of latest fixes and improvements.
PR Close#41429
PR Close#41471
In some cases, we want to test the AIO app or docs examples against the locally built `angular-in-memory-web-api` for example to ensure that the changes in a commit do not introduce a breaking changes.
PR Close#41313
PR Close#41471
JoostK