Move a view only if it would end up at a different place.
Otherwise we would do unnecessary processing like DOM manipulation, query notifications etc.
Thanks to @pkozlowski-opensource for the change.
PR Close#34052
When inserting a `viewRef` it is possible to not provide
an `index`, which is regarded as appending to the end of
the container.
If the `viewRef` already exists in the container, then
this results in a move. But there was a fault in the logic
that computed where to insert the `viewRef` that did not
account for the fact that the `viewRef` was already in
the container, so the insertion `index` was outside the
bounds of the array.
Fixes#33924
PR Close#34052
Prior to this commit, all styles extracted from Component's template (defined using <style> tags) were ignored by JIT compiler, so only `styles` array values defined in @Component decorator were used. This change updates JIT compiler to take styles extracted from the template into account. It also ensures correct order where `styles` array values are applied first and template styles are applied second.
PR Close#34017
Previously if a type was returning itself it would cause an infinite loop in tsickle. We worked around it with a type that alises to `any`. Now that the issue has been resolved in tsickle, we can clean up the workaround.
PR Close#34019
When performing diagnostic checks or completions, we should take into
account members and properties in the base class, if any. Otherwise, the
language service will produce a false error.
PR closes https://github.com/angular/vscode-ng-language-service/issues/93
PR Close#34041
This commit fixes a compatibility bug where pre-order lifecycle
hooks (onInit, doCheck, OnChanges) for directives on the same
host node were executed based on the order the directives were
matched, rather than the order the directives were instantiated
(i.e. injection order).
This discrepancy can cause issues with forms, where it is common
to inject NgControl and try to extract its control property in
ngOnInit. As the NgControl directive is injected, it should be
instantiated before the control value accessor directive (and
thus its hooks should run first). This ensures that the NgControl
ngOnInit can set up the form control before the ngOnInit
for the control value accessor tries to access it.
Closes#32522
PR Close#34026
These apis have been deprecated in v8, so they should stick around till v10,
but since they are defunct we are removing them early so that they don't take up payload size.
PR Close#33949
In ViewEngine we were only generating code for exported classes, however with Ivy we do it no matter whether the class has been exported or not. These changes add an extra flag that allows consumers to opt into the ViewEngine behavior. The flag works by treating non-exported classes as if they're set to `jit: true`.
Fixes#33724.
PR Close#33921
Micro-benchmarks were broken after we've introduced concept of
DECLARATION_COMPONENT_VIEW on LView (after this change embedded
views must have a pointer to a parent LView).
PR Close#34031
The root view case is already covered by the existing code in the
getRenderParent function so no need to have an explicit checks
(and associated memory reads) again.
PR Close#33988
We need to make is_ivy_enabled public to allow the internal i18n
build rule to rely on it rather than relying on compile_strategy.
After we move the internal i18n rule to rely on is_ivy_enabled,
compile_strategy can then be removed.
PR Close#33992
Previously, our incremental build system kept track of the changes between
the current compilation and the previous one, and used its knowledge of
inter-file dependencies to evaluate the impact of each change and emit the
right set of output files.
However, a problem arose if the compiler was not able to extract a
dependency graph successfully. This typically happens if the input program
contains errors. In this case the Angular analysis part of compilation is
never executed.
If a file changed in one of these failed builds, in the next build it
appears unchanged. This means that the compiler "forgets" to emit it!
To fix this problem, the compiler needs to know the set of changes made
_since the last successful build_, not simply since the last invocation.
This commit changes the incremental state system to much more explicitly
pass information from the previous to the next compilation, and in the
process to keep track of changes across multiple failed builds, until the
program can be analyzed successfully and the results of those changes
incorporated into the emit plan.
Fixes#32214
PR Close#33971
Previously the visible compiler name during the ng_module build action was
ngc/ngtsc. These names however are only really known to the compiler team.
Instead we should use more general terms for which compiler is used to match
how we speak about compiler choices.
PR Close#33995
This PR brings a couple of changes;
- Removes undeed dependencies in bazel targets such as `//packages/common` & `//packages/core`
- Removes RxJs usage
- Adds `document-register-element` to architect test targets
- Use @schematics/angular helpers
- Uses the standard `$source": "projectName"` to get the projectName, which is defined in the `schema.json`
- Use workspace writer to update the workspace config
PR Close#33723
Under bazel and Ivy we don't need the shim files to be emmited by default.
We still need to the shims for blaze however because google3 code imports them.
This improves build latency by 1-2 seconds per ng_module target.
PR Close#33765
Before creating a mutating http request, service-worker
invalidates lru cache entry and writes to cache storage.
Therefore, cache storage failure can prevent making post requests.
Fix this by catching and logging cache error, add a test case.
Fixes#33793
PR Close#33930
In a package.json file, the "typings" or "types" field could be an array
of typings files. ngcc would previously crash unexpectedly for such
packages, as it assumed that the typings field would be a string. This
commit lets ngcc skip over such packages, as having multiple typing
entry-points is not supported for Angular packages so it is safe to
ignore them.
Fixes#33646
PR Close#33973
The url_tree equalQueryParams and containsQueryParam methods did not handle query params that has arrays, which resulted in the routerLinkActive to not behave as expected, change was made to ensure query params with arrays are handled correctly
fixes#22223
PR Close#22666
This introduces a second possible define flag for informing bazel to build with ivy, but
does not remove the old `compile=aot` flag for configuration.
This is the first step in migrating away from using the `compile=aot` define flag.
PR Close#33975
The assertion that we have in the `directiveInject` instruction is too restrictive and we came across some pattern where it throws unnecessarily. This commit removes that assertion for now and more detailed investigation is needed to decide is we need to restrict the set of TNodeType again.
This commit also adds a test which triggered the TNodeType.View to come up in the `directiveInject` instruction, so it might be useful to avoid regressions during further refactoring.
PR Close#33948
In 5d5c94d83, the deprecated `versionedFiles` option from the SW
asset-group configuration in `ngsw-config.json`. As a result, the
option would be silently ignored and the runtime behavior of the SW
would change (i.e. some files might not be cached and available offline
any more). This change could be easily go unnoticed by the developer.
This commit ensures this does not happen by throwing a build-time error,
when detecting the unsupported `versionedFiles` option with an error
message prompting the user to use the `files` option instead.
Jira issue: [FW-1727](https://angular-team.atlassian.net/browse/FW-1727)
PR Close#33903
Recently the ngtsc translator was modified to be more `ScriptTarget`
aware, which basically means that it will not generate non-ES5 code
when the output format is ES5 or similar.
This commit enhances that change by also "downleveling" localized
messages. In ES2015 the messages use tagged template literals, which
are not available in ES5.
PR Close#33857
Due to the fact that Tsickle runs between analyze and transform phases in Angular, Tsickle may transform nodes (add comments with type annotations for Closure) that we captured during the analyze phase. As a result, some patterns where a function is returned from another function may trigger automatic semicolon insertion, which breaks the code (makes functions return `undefined` instead of a function). In order to avoid the problem, this commit updates the code to wrap all functions in some expression ("privders" and "viewProviders") in parentheses. More info can be found in Tsickle source code here: d797426257/src/jsdoc_transformer.ts (L1021)
PR Close#33609
When ngtsc comes across a source file during partial evaluation, it
would determine all exported symbols from that module and evaluate their
values greedily. This greedy evaluation strategy introduces unnecessary
work and can fall into infinite recursion when the evaluation result of
an exported expression would circularly depend on the source file. This
would primarily occur in CommonJS code, where the `exports` variable can
be used to refer to an exported variable. This variable would be
resolved to the source file itself, thereby greedily evaluating all
exported symbols and thus ending up evaluating the `exports` variable
again. This variable would be resolved to the source file itself,
thereby greedily evaluating all exported symbols and thus ending u
evaluating the `exports` variable again. This variable would be
resolved to the source file itself, thereby greedily evaluating all
exported symbols and thus ending up evaluating the `exports` variable
again. This variable would be resolved to the source file itself,
thereby greedily evaluating all exported symbols and thus ending up
evaluating the `exports` variable again. This went on for some time
until all stack frames were exhausted.
This commit introduces a `ResolvedModule` that delays the evaluation of
its exports until they are actually requested. This avoids the circular
dependency when evaluating `exports`, thereby fixing the issue.
Fix#33734
PR Close#33772
The template type checker generates code to check directive inputs and
outputs, whose name may contain characters that can not be used as
identifier in TypeScript. Prior to this change, such names would be
emitted into the generated code as is, resulting in invalid code and
unexpected template type check errors.
This commit fixes the bug by representing the potentially invalid names
as string literal instead of raw identifier.
Fixes#33590
PR Close#33741
NgModule compilation in JIT mode (that is also used in TestBed) caches module scopes on NgModule defs (using `transitiveCompileScopes` field). Module overrides (defined via TestBed.overrideModule) may invalidate this data by adding/removing items in `declarations` list. This commit forces TestBed to recalculate transitive scopes in case module overrides are present, so TestBed always gets the most up-to-date information.
PR Close#33787
This change enables "var(--my-var)" to pass through the style sanitizer.
After consulation with our security team, allowing these doesn't create
new attack vectors, so the sanitizer doesn't need to strip them.
Fixes parts of #23485 related to the sanitizer, other use cases discussed
there related to binding have been addressed via other changes to the
class and style handling in the runtime.
Closes#23485
PR Close#33841
This commit transforms the setClassMetadata calls generated by ngtsc from:
```typescript
/*@__PURE__*/ setClassMetadata(...);
```
to:
```typescript
/*@__PURE__*/ (function() {
setClassMetadata(...);
})();
```
Without the IIFE, terser won't remove these function calls because the
function calls have arguments that themselves are function calls or other
impure expressions. In order to make the whole block be DCE-ed by terser,
we wrap it into IIFE and mark the IIFE as pure.
It should be noted that this change doesn't have any impact on CLI* with
build-optimizer, which removes the whole setClassMetadata block within
the webpack loader, so terser or webpack itself don't get to see it at
all. This is done to prevent cross-chunk retention issues caused by
webpack's internal module registry.
* actually we do expect a short-term size regression while
https://github.com/angular/angular-cli/pull/16228
is merged and released in the next rc of the CLI. But long term this
change does nothing to CLI + build-optimizer configuration and is done
primarly to correct the seemingly correct but non-function PURE annotation
that builds not using build-optimizer could rely on.
PR Close#33337
NgModules in Ivy have a definition which contains various different bits
of metadata about the module. In particular, this metadata falls into two
categories:
* metadata required to use the module at runtime (for bootstrapping, etc)
in AOT-only applications.
* metadata required to depend on the module from a JIT-compiled app.
The latter metadata consists of the module's declarations, imports, and
exports. To support JIT usage, this metadata must be included in the
generated code, especially if that code is shipped to NPM. However, because
this metadata preserves the entire NgModule graph (references to all
directives and components in the app), it needs to be removed during
optimization for AOT-only builds.
Previously, this was done with a clever design:
1. The extra metadata was added by a function called `setNgModuleScope`.
A call to this function was generated after each NgModule.
2. This function call was marked as "pure" with a comment and used
`noSideEffects` internally, which causes optimizers to remove it.
The effect was that in dev mode or test mode (which use JIT), no optimizer
runs and the full NgModule metadata was available at runtime. But in
production (presumably AOT) builds, the optimizer runs and removes the JIT-
specific metadata.
However, there are cases where apps that want to use JIT in production, and
still make an optimized build. In this case, the JIT-specific metadata would
be erroneously removed. This commit solves that problem by adding an
`ngJitMode` global variable which guards all `setNgModuleScope` calls. An
optimizer can be configured to statically define this global to be `false`
for AOT-only builds, causing the extra metadata to be stripped.
A configuration for Terser used by the CLI is provided in `tooling.ts` which
sets `ngJitMode` to `false` when building AOT apps.
PR Close#33671
The Ivy template type-checker is capable of inferring the type of a
structural directive (such as NgForOf<T>). Previously, this was done with
fullTemplateTypeCheck: true, even if strictTemplates was false. View Engine
previously did not do this inference, and so this causes breakages if the
type of the template context is not what the user expected.
In particular, consider the template:
```html
<div *ngFor="let user of users as all">
{{user.index}} out of {{all.length}}
</div>
```
As long as `users` is an array, this seems reasonable, because it appears
that `all` is an alias for the `users` array. However, this is misleading.
In reality, `NgForOf` is rendered with a template context that contains
both a `$implicit` value (for the loop variable `user`) as well as a
`ngForOf` value, which is the actual value assigned to `all`. The type of
`NgForOf`'s template context is `NgForContext<T>`, which declares `ngForOf`'s
type to be `NgIterable<T>`, which does not have a `length` property (due to
its incorporation of the `Iterable` type).
This commit stops the template type-checker from inferring template context
types unless strictTemplates is set (and strictInputTypes is not disabled).
Fixes#33527.
PR Close#33537
This commit changes the reporting of watch mode diagnostics for ngtsc to use
the same formatting as non-watch mode diagnostics. This prints rich and
contextual errors even in watch mode, which previously was not the case.
Fixes#32213
PR Close#33862
Previously, the ngtsc compiler attempted to reuse analysis work from the
previous program during an incremental build. To do this, it had to prove
that the work was safe to reuse - that no changes made to the new program
would invalidate the previous analysis.
The implementation of this had a significant design flaw: if the previous
program had errors, the previous analysis would be missing significant
information, and the dependency graph extracted from it would not be
sufficient to determine which files should be re-analyzed to fill in the
gaps. This often meant that the build output after an error was resolved
would be wholly incorrect.
This commit switches ngtsc to take a simpler approach to incremental
rebuilds. Instead of attempting to reuse prior analysis work, the entire
program is re-analyzed with each compilation. This is actually not as
expensive as one might imagine - analysis is a fairly small part of overall
compilation time.
Based on the dependency graph extracted during this analysis, the compiler
then can make accurate decisions on whether to emit specific files. A new
suite of tests is added to validate behavior in the presence of source code
level errors.
This new approach is dramatically simpler than the previous algorithm, and
should always produce correct results for a semantically correct program.s
Fixes#32388Fixes#32214
PR Close#33862
Originally, QueryList implemented Iterable and provided a Symbol.iterator
on its prototype. This caused issues with tree-shaking, so QueryList was
refactored and the Symbol.iterator added in its constructor instead. As
part of this change, QueryList no longer implemented Iterable directly.
Unfortunately, this meant that QueryList was no longer assignable to
Iterable or, consequently, NgIterable. NgIterable is used for NgFor's input,
so this meant that QueryList was not usable (in a type sense) for NgFor
iteration. View Engine's template type checking would not catch this, but
Ivy's did.
As a fix, this commit adds the declaration (but not the implementation) of
the Symbol.iterator function back to QueryList. This has no runtime effect,
so it doesn't affect tree-shaking of QueryList, but it ensures that
QueryList is assignable to NgIterable and thus usable with NgFor.
Fixes#29842
PR Close#33536
Previously, the compiler assumed that all TS files logically within a
project existed under one or more "root directories". If the TS compiler
option `rootDir` or `rootDirs` was set, they would dictate the root
directories in use, otherwise the current directory was used.
Unfortunately this assumption was unfounded - it's common for projects
without explicit `rootDirs` to import from files outside the current
working directory. In such cases the `LogicalProjectStrategy` would attempt
to generate imports into those files, and fail. This would lead to no
`ReferenceEmitStrategy` being able to generate an import, and end in a
compiler assertion failure.
This commit introduces a new strategy to use when there are no `rootDirs`
explicitly present, the `RelativePathStrategy`. It uses simpler, filesystem-
relative paths to generate imports, even to files above the current working
directory.
Fixes#33659Fixes#33562
PR Close#33828
Pete Bacon Darwin
Andrew Kushnir
crisbeto
Keen Yee Liau
Kara Erickson
Igor Minar
arturovt
Pawel Kozlowski
Joey Perrott
Alex Rickabaugh
Alan Agius
Denis Omelkov
JoostK
Zaid Al-Omari
George Kalpakas
Judy Bogart
Andrew Scott
horn