A class that is provided as Angular service is required to have an
`@Injectable()` decorator so that the compiler generates its injectable
definition for the runtime. Applications are automatically migrated
using the "missing-injectable" schematic, however libraries built for
older version of Angular may not yet satisfy this requirement.
This commit ports the "missing-injectable" schematic to a migration that
is ran when ngcc is processing a library. This ensures that any service
that is provided from an NgModule or Directive/Component will have an
`@Injectable()` decorator.
PR Close#33362
ngcc has an internal cache of computed decorator information for
reflected classes, which could previously be mutated by consumers of the
reflection host. With the ability to inject synthesized decorators, such
decorators would inadvertently be added into the array of decorators
that was owned by the internal cache of the reflection host, incorrectly
resulting in synthesized decorators to be considered real decorators on
a class. This commit fixes the issue by cloning the cached array before
returning it.
PR Close#33362
This patch ensures that the `[style]` and `[class]` based bindings
are directly applied to an element's style and className attributes.
This patch optimizes the algorithm so that it...
- Doesn't construct an update an instance of `StylingMapArray` for
`[style]` and `[class]` bindings
- Doesn't apply `[style]` and `[class]` based entries using
`classList` and `style` (direct attributes are used instead)
- Doesn't split or iterate over all string-based tokens in a
string value obtained from a `[class]` binding.
This patch speeds up the following cases:
- `<div [class]>` and `<div class="..." [class]>`
- `<div [style]>` and `<div style="..." [style]>`
The overall speec increase is by over 5x.
PR Close#33336
Moves to using the absolute span of an expression AST (relative to an
entire template) rather than a relative span (relative to the start
of the expression) to find an expression AST given a position in a
template.
This is part of the changes needed to support text replacement in
templates (#33091).
PR Close#33387
The template type checking abilities of the Ivy compiler are far more
advanced than the level of template type checking that was previously
done for Angular templates. Up until now, a single compiler option
called "fullTemplateTypeCheck" was available to configure the level
of template type checking. However, now that more advanced type checking
is being done, new errors may surface that were previously not reported,
in which case it may not be feasible to fix all new errors at once.
Having only a single option to disable a large number of template type
checking capabilities does not allow for incrementally addressing newly
reported types of errors. As a solution, this commit introduces some new
compiler options to be able to enable/disable certain kinds of template
type checks on a fine-grained basis.
PR Close#33365
View Engine correctly infers the type of local refs to directives or to
<ng-template>s, just not to DOM nodes. This commit splits the
checkTypeOfReferences flag into two separate halves, allowing the compiler
to align with this behavior.
PR Close#33365
For elements that have a text attribute, it may happen that the element
is matched by a directive that consumes the attribute as an input. In
that case, the template type checker will validate the correctness of
the attribute with respect to the directive's declared type of the
input, which would typically be `boolean` for the `disabled` input.
Since empty attributes are assigned the empty string at runtime, the
template type checker would report an error for this template.
This commit introduces a strictness flag to help alleviate this
particular situation, effectively ignoring text attributes that happen
to be consumed by a directive.
PR Close#33365
During the creation of an Angular program in the compiler, a check is
done to verify whether the version of TypeScript is considered
supported, producing an error if it is not. This check was missing in
the Ivy compiler, so users may have ended up running an unsupported
TypeScript version inadvertently.
Resolves FW-1643
PR Close#33377
`LFrame` stores information specifice to the current `LView` As the code
enters and leaves `LView`s we use `enterView()` and `leaveView()`
respectively to build a a stack of `LFrame`s. This allows us to easily
restore the previous `LView` instruction state.
PR Close#33178
It is messy to keep casting `CompletionEntry.kind` from
`ng.CompletionKind` to `ts.ScriptElementKind`.
Instead, create a new type `ng.CompletionEntry` that is exactly the same
as `ts.CompletionEntry`, but with the `kind` type overridden to
`ng.CompletionKind`.
This way, we only have to cast it once, and can do so in a safe manner.
PR Close#33379
Recently it was made possible to have a directive without selector,
which are referred to as abstract directives. Such directives should not
be registered in an NgModule, but can still contain decorators for
inputs, outputs, queries, etc. The information from these decorators and
the `@Directive()` decorator itself needs to be registered with the
central `MetadataRegistry` so that other areas of the compiler can
request information about a given directive, an example of which is the
template type checker that needs to know about the inputs and outputs of
directives.
Prior to this change, however, abstract directives would only register
themselves with the `MetadataRegistry` as being an abstract directive,
without all of its other metadata like inputs and outputs. This meant
that the template type checker was unable to resolve the inputs and
outputs of these abstract directives, therefore failing to check them
correctly. The typical error would be that some property does not exist
on a DOM element, whereas said property should have been bound to the
abstract directive's input.
This commit fixes the problem by always registering the metadata of a
directive or component with the `MetadataRegistry`. Tests have been
added to ensure abstract directives are handled correctly in the
template type checker, together with tests to verify the form of
abstract directives in declaration files.
Fixes#30080
PR Close#33131
During compile-time translation inlining, the `$localize.locale`
expression will now be replaced with a string literal containing the
current locale of the translations.
PR Close#33314
In the post-$localize world the current locale value is defined by setting
`$localize.locale` which is then read at runtime by Angular in the provider
for the `LOCALE_ID` token and also passed to the ivy machinery via`setLocaleId()`.
The $localize compile-time inlining tooling can replace occurrences of
`$localize.locale` with a string literal, similar to how translations
are inlined.
// FW-1639
See https://github.com/angular/angular-cli/issues/15896
PR Close#33314
Previously, we had tested that expressions parsed in a Render3 AST
had correctly-defined absolute spans (spans relative to the entire
template, not the local expression). Sometimes we use Template ASTs
rather than Render3 ASTs, and it's desirable to test for correct
expression spans in the template parser as well.
Adding these tests resolved one bug, similar to the one fixed in
fd4fed14d8, where expressions in the value
of a template attribute were not given an absolute span corresponding to
the start of the attribute name rather than the start of the attribute
value.
The diff on this commit is large, partially because it involves some
structural changes of the template parser testing layout. In particular,
the following is done:
1. Move `createMeta*`-like functions from `template_parser_spec.ts` to
be exported from a new test utility file.
2. Create an `ExpressionSourceHumanizer`, similar to the one created in
b04488d692, to allow convenient testing
of expressions' locations.
3. Create `template_parser_absolute_span_spec.ts`, testing the spans of
expressions parsed by the template parser. This is very similar to
the `r3_ast_absolute_span_spec`.
PR Close#33253
Often the types of an `@Input`'s field don't fully reflect the types of
assignable values. This can happen when an input has a getter/setter pair
where the getter always returns a narrow type, and the setter coerces a
wider value down to the narrow type.
For example, you could imagine an input of the form:
```typescript
@Input() get value(): string {
return this._value;
}
set value(v: {toString(): string}) {
this._value = v.toString();
}
```
Here, the getter always returns a `string`, but the setter accepts any value
that can be `toString()`'d, and coerces it to a string.
Unfortunately TypeScript does not actually support this syntax, and so
Angular users are forced to type their setters as narrowly as the getters,
even though at runtime the coercion works just fine.
To support these kinds of patterns (e.g. as used by Material), this commit
adds a compiler feature called "input coercion". When a binding is made to
the 'value' input of a directive like MatInput, the compiler will look for a
static field with the name ngAcceptInputType_value. If such a field is found
the type-checking expression for the input will use the static field's type
instead of the type for the @Input field,allowing for the expression of a
type conversion between the binding expression and the value being written
to the input's field.
To solve the case above, for example, MatInput might write:
```typescript
class MatInput {
// rest of the directive...
static ngAcceptInputType_value: {toString(): string};
}
```
FW-1475 #resolve
PR Close#33243
Decrease `MIN_SAMPLE_DURATION` to make it more likely that we cane fit into single time slice.
Increase `MIN_SAMPLE_COUNT_NO_IMPROVEMENT` to make it more likely to find the best
PR Close#33341
change the existing implementation from using
```
string.split(/\s+/);
```
to a char scan which performers the same thing.
The reason why `split(/\s+/)` is slow is that:
- `/\s+/` allocates new `RegExp` every time this code executes.
- `RegExp` scans are a lot more expensive because they are more powerful.
PR Close#33326
Prior to this change, a method call of a local template variable would
incorrectly be considered a call to a method on the component class.
For example, this pattern would produce an error:
```
<ng-template let-method>{{ method(1) }}</ng-template>
```
Here, the method call should be targeting the `$implicit` variable on
the template context, not the component class. This commit corrects the
behavior by first resolving methods in the template before falling back
on the component class.
Fixes#32900
PR Close#33132
In View Engine, with fullTemplateTypeCheck mode disabled, the type of any
inferred based on the entity being referenced. This is a bug, since the
goal with fullTemplateTypeCheck: false is for Ivy and VE to be aligned in
terms of type inference.
This commit adds a 'checkTypeOfReference' flag in the TypeCheckingConfig
to control this inference, and sets it to false when fullTemplateTypeCheck
is disabled.
PR Close#33261
Libraries can expose directive/component base classes that will be
used by consumer applications. Using such a base class from another
compilation unit works fine with "ngtsc", but when using "ngc", the
compiler will thrown an error saying that the base class is not
part of a NgModule. e.g.
```
Cannot determine the module for class X in Y! Add X to the NgModule to fix it.
```
This seems to be because the logic for distinguishing directives from
abstract directives is scoped to the current compilation unit within
ngc. This causes abstract directives from other compilation units to
be considered as actual directives (causing the exception).
PR Close#33347
This should be removed before for 9.0.0 rc
BREAKING CHANGE:
@angular/bazel ng_setup_workspace() is no longer needed and has been removed.
We assume you will fetch rules_nodejs in your WORKSPACE file, and no other dependencies remain here.
Simply remove any calls to this function and the corresponding load statement.
PR Close#33330
Prior to this commit, we always invoked second i18n pass (in case whitespace removal is on, which is a default), even if a given template doesn't contain i18n information. Now we store a flag (that indicates presence of i18n information in a template) during first i18n pass and use it to check whether second pass is needed.
PR Close#33284
When computing i18n messages for templates there are two passes.
This is because messages must be computed before any whitespace
is removed. Then on a second pass, the messages must be recreated
but reusing the message ids from the first pass.
Previously ICUs were losing their legacy ids that had been computed
via the first pass. This commit fixes that by keeping track of the
message from the first pass (`previousMessage`) for ICU placeholder
nodes.
// FW-1637
PR Close#33318
Previously the parameter was `id` which is ambigous because it
could be a computed value rather than a developer specified custom
value.
PR Close#33318
This commit cleans up the I18MetaVisitor code by moving all the
state of the visitor into a `context` object that gets passed along
as the nodes are being visited. This is in keeping with how visitors
are designed but also makes it easy to remove the
[definite assignment assertions](https://mariusschulz.com/blog/strict-property-initialization-in-typescript#solution-4-definite-assignment-assertion)
from the class properties.
Also, a `I18nMessageFactory` named type is exported to make it
clearer to consumers of the `createI18nMessageFactory()` function.
PR Close#33318
This is a potential fix for https://github.com/angular/vscode-ng-language-service/issues/235
suggested by @andrius-pra in
47696136e3.
Currently, CRLF line endings are converted to LFs and this causes the
diagnostics span to be off in templates that use CRLF. The line endings
must be preserved in order to maintain correct span offset. The solution
is to add an option to the Tokenizer to indicate such preservation.
PR Close#33241
This commit adapts the private NgModule re-export system (using aliasing) to
ngcc. Not all ngcc compilations are compatible with these re-exports, as
they assume a 1:1 correspondence between .js and .d.ts files. The primary
concern here is supporting them for commonjs-only packages.
PR Close#33177
This commit refactors the aliasing system to support multiple different
AliasingHost implementations, which control specific aliasing behavior
in ngtsc (see the README.md).
A new host is introduced, the `PrivateExportAliasingHost`. This solves a
longstanding problem in ngtsc regarding support for "monorepo" style private
libraries. These are libraries which are compiled separately from the main
application, and depended upon through TypeScript path mappings. Such
libraries are frequently not in the Angular Package Format and do not have
entrypoints, but rather make use of deep import style module specifiers.
This can cause issues with ngtsc's ability to import a directive given the
module specifier of its NgModule.
For example, if the application uses a directive `Foo` from such a library
`foo`, the user might write:
```typescript
import {FooModule} from 'foo/module';
```
In this case, foo/module.d.ts is path-mapped into the program. Ordinarily
the compiler would see this as an absolute module specifier, and assume that
the `Foo` directive can be imported from the same specifier. For such non-
APF libraries, this assumption fails. Really `Foo` should be imported from
the file which declares it, but there are two problems with this:
1. The compiler would have to reverse the path mapping in order to determine
a path-mapped path to the file (maybe foo/dir.d.ts).
2. There is no guarantee that the file containing the directive is path-
mapped in the program at all.
The compiler would effectively have to "guess" 'foo/dir' as a module
specifier, which may or may not be accurate depending on how the library and
path mapping are set up.
It's strongly desirable that the compiler not break its current invariant
that the module specifier given by the user for the NgModule is always the
module specifier from which directives/pipes are imported. Thus, for any
given NgModule from a particular module specifier, it must always be
possible to import any directives/pipes from the same specifier, no matter
how it's packaged.
To make this possible, when compiling a file containing an NgModule, ngtsc
will automatically add re-exports for any directives/pipes not yet exported
by the user, with a name of the form: ɵngExportɵModuleNameɵDirectiveName
This has several effects:
1. It guarantees anyone depending on the NgModule will be able to import its
directives/pipes from the same specifier.
2. It maintains a stable name for the exported symbol that is safe to depend
on from code on NPM. Effectively, this private exported name will be a
part of the package's .d.ts API, and cannot be changed in a non-breaking
fashion.
Fixes#29361
FW-1610 #resolve
PR Close#33177
Changed `setValue` documentation for throwing an error as it contained a grammar
mistake and also may have caused ambiguity around when exactly the
method would throw.
PR Close#33126
Static methods that return a type of ModuleWithProviders currently
do not have to specify a type because the generic falls back to any.
This is problematic because the type of the actual module being
returned is not present in the type information.
Since Ivy uses d.ts files exclusively for downstream packages
(rather than metadata.json files, for example), we no longer have
the type of the actual module being created.
For this reason, a generic type should be added for
ModuleWithProviders that specifies the module type. This will be
required for all users in v10, but will only be necessary for
users of Ivy in v9.
PR Close#33217
Previously, the `FileSystem` abstraction featured a `mkdir()` method. In
`NodeJSFileSystem` (the default `FileSystem` implementation used in
actual code), the method behaved similar to Node.js' `fs.mkdirSync()`
(i.e. failing if any parent directory is missing or the directory exists
already). In contrast, `MockFileSystem` (which is the basis or mock
`FileSystem` implementations used in tests) implemented `mkdir()` as an
alias to `ensureDir()`, which behaved more like Node.js'
`fs.mkdirSync()` with the `recursive` option set to `true` (i.e.
creating any missing parent directories and succeeding if the directory
exists already).
This commit fixes this inconsistency by removing the `mkdir()` method,
which was not used anyway and only keeping `ensureDir()` (which is
consistent across our different `FileSystem` implementations).
PR Close#33237
When `ngcc` is running in parallel mode (usually when run from the
command line) and the `createNewEntryPointFormats` option is set to true
(e.g. via the `--create-ivy-entry-points` command line option), it can
happen that two workers end up trying to create the same directory at
the same time. This can lead to a race condition, where both check for
the directory existence, see that the directory does not exist and both
try to create it, with the second failing due the directory's having
already been created by the first one. Note that this only affects
directories and not files, because `ngcc` tasks operate on different
sets of files.
This commit avoids this race condition by allowing `FileSystem`'s
`ensureDir()` method to not fail if one of the directories it is trying
to create already exists (and is indeed a directory). This is fine for
the `ensureDir()` method, since it's purpose is to ensure that the
specified directory exists. So, even if the `mkdir()` call failed
(because the directory exists), `ensureDir()` has still completed its
mission.
Related discussion: https://github.com/angular/angular/pull/33049#issuecomment-540485703
FW-1635 #resolve
PR Close#33237
Often the types of an `@Input`'s field don't fully reflect the types of
assignable values. This can happen when an input has a getter/setter pair
where the getter always returns a narrow type, and the setter coerces a
wider value down to the narrow type.
For example, you could imagine an input of the form:
```typescript
@Input() get value(): string {
return this._value;
}
set value(v: {toString(): string}) {
this._value = v.toString();
}
```
Here, the getter always returns a `string`, but the setter accepts any value
that can be `toString()`'d, and coerces it to a string.
Unfortunately TypeScript does not actually support this syntax, and so
Angular users are forced to type their setters as narrowly as the getters,
even though at runtime the coercion works just fine.
To support these kinds of patterns (e.g. as used by Material), this commit
adds a compiler feature called "input coercion". When a binding is made to
the 'value' input of a directive like MatInput, the compiler will look for a
static function with the name ngCoerceInput_value. If such a function is
found, the type-checking expression for the input will be wrapped in a call
to the function, allowing for the expression of a type conversion between
the binding expression and the value being written to the input's field.
To solve the case above, for example, MatInput might write:
```typescript
class MatInput {
// rest of the directive...
static ngCoerceInput_value(value: {toString(): string}): string {
return null!;
}
}
```
FW-1475 #resolve
PR Close#33243
As a hack to get the Ivy compiler ngtsc off the ground, the existing
'allowEmptyCodegenFiles' option was used to control generation of ngfactory
and ngsummary shims during compilation. This option was selected since it's
enabled in google3 but never enabled in external projects.
As ngtsc is now mature and the role shims play in compilation is now better
understood across the ecosystem, this commit introduces two new compiler
options to control shim generation:
* generateNgFactoryShims controls the generation of .ngfactory shims.
* generateNgSummaryShims controls the generation of .ngsummary shims.
The 'allowEmptyCodegenFiles' option is still honored if either of the above
flags are not set explicitly.
PR Close#33256
Angular v9 schematics should print out a link to the migration
guide associated with each schematic. This way, users have an
easy way to find more information about the automatic code
transformations they will see with `ng update`.
PR Close#33258
With Ivy the `entryComponents` array isn't necessary anymore. These changes mark it as deprecated so that it can be removed in a future version.
PR Close#33205
Currently if a `ModuleWithProviders` is missng its generic type, we throw a cryptic error like:
```
error TS-991010: Value at position 3 in the NgModule.imports of TodosModule is not a reference: [object Object]
```
These changes add a better error to make it easier to debug.
PR Close#33187
Resubmit #31168 now that google3 tests can pass. This requires http://cl/272696717 to be patched.
Original description from jasonaden:
Without this change when using UrlTree redirects in urlUpdateStrategy="eager", the URL would get
updated to the target location, then redirected. This resulted in having an additional entry in the
history and thus the back button would be broken (going back would land on the URL causing a new
redirect).
Additionally, there was a bug where the redirect, even without urlUpdateStrategy="eager", could
create a history with too many entries. This was due to kicking off a new navigation within the
navigation cancelling logic. With this PR the new navigation is pushed to the next tick with a
setTimeout, allowing the page being redirected from to be cancelled before starting a new
navigation.
Related to #27148
fix(router): adjust UrlTree redirect to replace URL if in eager update
Fix lint errors
PR Close#32988
Until now, the template type checker has not checked any of the event
bindings that could be present on an element, for example
```
<my-cmp
(changed)="handleChange($event)"
(click)="handleClick($event)"></my-cmp>
```
has two event bindings: the `change` event corresponding with an
`@Output()` on the `my-cmp` component and the `click` DOM event.
This commit adds functionality to the template type checker in order to
type check both kind of event bindings. This means that the correctness
of the bindings expressions, as well as the type of the `$event`
variable will now be taken into account during template type checking.
Resolves FW-1598
PR Close#33125
In ES5 modules, the class declarations consist of an IIFE with inner
and outer declarations that represent the class. The `EsmReflectionHost`
has logic to ensure that `getDeclarationOfIdentifier()` always returns the
outer declaration.
Before this commit, if an identifier referred to an alias of the inner
declaration, then `getDeclarationOfIdentifier()` was failing to find
the outer declaration - instead returning the inner declaration.
Now the identifier is correctly resolved up to the outer declaration
as expected.
This should fix some of the failing 3rd party packages discussed in
https://github.com/angular/ngcc-validation/issues/57.
PR Close#33252
This commit removes `@angular-devkit/build-angular` from package.json
for a project that opts into Bazel. This is because the package adds a
dependency on node-sass, which is rejected by Bazel due to its absense.
This commit also appends to `scripts.postinstall` if it already exists.
This is needed because `ng new` in CLI v9 now automatically adds a
postinstall step for `ngcc`.
PR Close#32946
BREAKING CHANGE:
In v5, we deprecated support for the intl API in order to improve the browser support. We are now removing these deprecated APIs for v9. See the original change here for more info on why: #18284.
PR Close#29250
This commit fixes ngtsc's import generator to use the ReflectionHost when
looking through the exports of an ES module to find the export of a
particular declaration that's being imported. This is necessary because
some module formats like CommonJS have unusual export mechanics, and the
normal TypeScript ts.TypeChecker does not understand them.
This fixes an issue with ngcc + CommonJS where exports were not being
enumerated correctly.
FW-1630 #resolve
PR Close#33192
Normally, when ngcc encounters a package with missing dependencies while
attempting to determine a compilation ordering, it will ignore that package.
This commit adds a configuration for a flag to tell ngcc to compile the
package anyway, regardless of any missing dependencies.
FW-1931 #resolve
PR Close#33192
In the ReflectionHost API, a 'viaModule' indicates that a particular value
originated in another absolute module. It should always be 'null' for values
originating in relatively-imported modules.
This commit fixes a bug in the CommonJsReflectionHost where viaModule would
be reported even for relatively-imported values, which causes invalid import
statements to be generated during compilation.
A test is added to verify the correct behavior.
FW-1628 #resolve
PR Close#33192
This allows disabling parallelism in ngcc if desired, which is mainly useful
for debugging. The implementation creates the flag and passes its value to
mainNgcc.
No tests are added since the feature mainly exists already - ngcc supports
both parallel and serial execution. This commit only allows switching the
flag via the commandline.
PR Close#33192
Prior to this commit, the absolute spans (relative to template source
file rather than the start of an expression) of expressions in a
template attribute like `*ngIf` were generated incorrectly, equating to
the relative spans.
This fixes the bug by passing an `absoluteOffset` parameter when parsing
template bindings.
Through some levels of indirection, this is required for the Language
Service to support text replacement in
https://github.com/angular/angular/pull/33091.
PR Close#33189
These were getting included in the @angular/localize package.
Instead, patch the upstream files to work with TS typeRoots option
See bazelbuild/rules_nodejs#1033
PR Close#33226
Prior to this fix if a map-based class or style binding wrote
its values onto an elemenent, the internal styling context would
not register the binding if the initial value as a `NO_CHANGE`
value. This situation occurs if a directive takes control of the
`class` or `style` input values and then returns a `NO_CHANGE` value
if the initial value is empty.
This patch ensures that all bindings are always registered with the
`TStylingContext` data-structure even if their initial value is
an instance of `NO_CHANGE`.
PR Close#33236
Prior to this fix, all style/class bindings (e.g. `[style]` and
`[class.foo]`) would quietly update a binding value if and when the
current binding value changes during checkNoChanges.
With this patch, all styling instructions will properly check to see
if the value has changed during the second pass of detectChanges()
if checkNoChanges is active.
PR Close#33103
Prior to this commit, metadata defined on ICU container element was not inherited by the ICU if the whole message is a single ICU (for example: `<ng-container i18n="meaning|description@@id">{count, select, ...}</ng-container>). This commit updates the logic to use parent container i18n meta information for the cases when a message consists of a single ICU.
Fixes#33171
PR Close#33191
LocaleID defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngLocaleIdDef to loc. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
PR Close#33212
Previously, when `ngcc` was reflecting on class members it did not
account for the fact that a member could be of the kind
`IndexSignature`. This can happen, for example, on abstract classes (as
is the case for [JsonCallbackContext][1]).
Trying to reflect on such members (and failing to recognize their kind),
resulted in warnings, such as:
```
Warning: Unknown member type: "[key: string]: (data: any) => void;
```
While these warnings are harmless, they can be confusing and worrisome
for users.
This commit avoids such warnings by detecting class members of the
`IndexSignature` kind and ignoring them.
[1]: https://github.com/angular/angular/blob/4659cc26e/packages/common/http/src/jsonp.ts#L39
PR Close#33198
Turns out that writing to global state is more expensive than writing to
a property on an object.
Slower:
````
let count = 0;
function increment() {
count++;
}
```
Faster:
````
const state = {
count: 0
};
function increment() {
state.count++;
}
```
This change moves all of the instruction state into a single state object.
`noop_change_detection` benchmark
Pre refactoring: 16.7 us
Post refactoring: 14.523 us (-13.3%)
PR Close#33093
Prior to this commit, all `className` inputs were not set because the runtime code assumed that the `classMap` instruction is only generated for `[class]` bindings. However the `[className]` binding also produces the same `classMap`, thus the code needs to distinguish between `class` and `className`. This commit adds extra logic to select the right input name and also throws an error in case `[class]` and `[className]` bindings are used on the same element simultaneously.
PR Close#33188
Prior to this change, the template type checker would incorrectly bind
non-property bindings such as `[class.strong]`, `[style.color]` and
`[attr.enabled]` to directive inputs of the same name. This is
undesirable, as those bindings are never actually bound to the inputs at
runtime.
Fixes#32099Fixes#32496
Resolves FW-1596
PR Close#33130
This patch introduces the `printTable()` and `printSources()`
methods to `DebugStylingContext` which can be used via the
`window.ng.getDebugNode` helpers when debugging an application.
PR Close#33179
This commit speeds up the tests by calling `MockHost.reset()` in
`beforeEach()` instead of destroying the entire language service and
creating a new one. The creation of a new language service instance is
expensive due to the need to initialize many core Symbols when creating
a new program.
This speeds ups the test (on my local machine) from 35 secs to 15 secs.
PR Close#33200
Injectable defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngInjectableDef to "prov" (for "provider", since injector defs
are known as "inj"). This is because property names cannot
be minified by Uglify without turning on property mangling
(which most apps have turned off) and are thus size-sensitive.
PR Close#33151
Injector defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngInjectorDef to inj. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
PR Close#33151
This change assures that data structures related to initial inputs
(ones set from static attributes) are created only once (during the
first template pass) and no additional runtime checks are done for
subsequent passes.
Additionally this commit changes the data structure used by initial inputs
on TNode - previously initial inputs for a directive were stored at the
directive index in LView. This meant that an array holding initial inputs
was relativelly big and had many null elements (as placeholders for elements,
directives, injector etc.). After the change we only create an array of a size
equal to a number of directives matched on a given TNode.
For the `directive_instantiate` benchmark it boils to allocating a 1-element
array vs. 100-element array previously.
PR Close#33195
These were getting included in the @angular/localize package.
Instead, patch the upstream files to work with TS typeRoots option
See bazelbuild/rules_nodejs#1033
PR Close#33176
There are many specs in `ts_plugin_spec.ts` that exercise the behavior
of completions. These specs should belong in `completions_spec` instead.
In addition,
1. Tests for `getExternalFiles()` added in `ts_plugin_spec.ts`
2. Fixed bug in MockHost.reset() to remove overriden script names
3. Add test for TS diagnostics when `angularOnly = true` is not set
PR Close#33159
The `legacyMessageIdFormat` is taken from the `i18nInFormat` property but we were only considering
`xmb`, `xlf` and `xlf2` values.
The CLI also supports `xliff` and `xliff2` values for the
`i18nInFormat`.
This commit adds support for those aliases.
PR Close#33160
Prior to this commit, Ivy runtime asserted that a given element is an instance of a DOM node. These asserts may not be correct in case custom renderer is used, which operates objects with a shape different than DOM nodes. This commit updates the code to avoid the mentioned checks in case procedural renderer is used.
PR Close#33156
Prior to this patch, if a map-class binding is applied directly then
that value will be incorrectly provided a sanitizer even if there is no
sanitization present for an element.
PR Close#33154
Now, hovering over an attribute on an element will provide information
about the directive that attribute matches in the element, if any.
(More generally, we return information about directive symbols
matched on an element attribute.)
I believe this is similar to how the indexer provides this kind of
information, though more precise in the sense that this commit provides
directive information only if the directive selector exactly matches the
attribute selector. In another sense, this is a limitation.
In fact, there are the limitations of:
- Directives matched on the element, but with a selector of anything
more than the attribute (e.g. `div[string-model]` or
`[string-model][other-attr]`) will not be returned as symbols matching
on the attribute.
- Only one symbol can be returned currently. If the attribute matches
multiple directives, only one directive symbol will be returned.
Furthermore, we cannot say that the directive symbol returned is
determinstic.
Resolution of these limitations can be discussed in the future. At least
the second limitation should be very easy to fixup in a future commit.
This relies solely on the template compiler and is agnostic to any Ivy
changes, so this is strictly a feature enhancement that will not have to
be refactored when we migrate the language service to Ivy.
PR Close#33127
This PR adds es2015 lib to the `tsconfig.json` of the test project so
that `Promise` could be used. Note this only affects diagnostics in the
IDE. The tsconfig in Language Service Mock Host is the actual config
values used, and it already has es2015 lib.
- Other minor cleanup: Rename imports in `main.ts`.
- Add more cases to `parsing-cases.ts`, which are tested in later PRs
PR Close#33157
Module defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngModuleDef to mod. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
PR Close#33142
Pipe defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngPipeDef to pipe. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
PR Close#33142
Add a new flag to `localize-translate` that allows the
source locale to be specified. When this locale is
provided an extra copy of the files is made for this
locale where the is no translation but all the calls to
`$localize` are stripped out.
Resolves FW-1623
PR Close#33101
Enables providing information about the NgModule a component is in when
its selector is hovered on in a template. Also enables differentiation
of a component and a directive when a directive class name is hovered
over in a TypeScript file.
Next step is to enable hover information for directives.
Part of #32565.
PR Close#33118
Factory defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngFactoryDef to fac. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
Note that the other "defs" (ngPipeDef, etc) will be
prefixed and shortened in follow-up PRs, in an attempt to
limit how large and conflict-y this change is.
PR Close#33116
Some changes in rules_nodejs providers folded into @angular/bazel package:
* `NodeModuleSources` renamed to `NpmPackageInfo` and now loaded from `//internal/common:npm_package_info.bzl`
* `collect_node_modules_aspect` renamed to `node_modules_aspect`
* new JS provider `JSNamedModuleInfo` now available and ng_module provides it using the `js_named_module_info` factory function
* sources_aspect has also been removed so the use of the `node_sources` legacy provider has been replaced with `JSNamedModuleInfo`.
PR Close#33073
Prior to this change, a static attribute that corresponds with a
directive's input would not be type-checked against the type of the
input. This is unfortunate, as a static value always has type `string`,
whereas the directive's input type might be something different. This
typically occurs when a developer forgets to enclose the attribute name
in brackets to make it a property binding.
This commit lets static attributes be considered as bindings with string
values, so that they will be properly type-checked.
PR Close#33066
This commit introduces an internal config option of the template type
checker that allows to disable strict null checks of input bindings to
directives. This may be particularly useful when a directive is from a
library that is not compiled with `strictNullChecks` enabled.
Right now, strict null checks are enabled when `fullTemplateTypeCheck`
is turned on, and disabled when it's off. In the near future, several of
the internal configuration options will be added as public Angular
compiler options so that users can have fine-grained control over which
areas of the template type checker to enable, allowing for a more
incremental migration strategy.
PR Close#33066
Prior to this change, the template type checker would always allow a
value of type `undefined` to be passed into a directive's inputs, even
if the input's type did not allow for it. This was due to how the type
constructor for a directive was generated, where a `Partial` mapped
type was used to allow for inputs to be unset. This essentially
introduces the `undefined` type as acceptable type for all inputs.
This commit removes the `Partial` type from the type constructor, which
means that we can no longer omit any properties that were unset.
Instead, any properties that are not set will still be included in the
type constructor call, having their value assigned to `any`.
Before:
```typescript
class NgForOf<T> {
static ngTypeCtor<T>(init: Partial<Pick<NgForOf<T>,
'ngForOf'|'ngForTrackBy'|'ngForTemplate'>>): NgForOf<T>;
}
NgForOf.ngTypeCtor(init: {ngForOf: ['foo', 'bar']});
```
After:
```typescript
class NgForOf<T> {
static ngTypeCtor<T>(init: Pick<NgForOf<T>,
'ngForOf'|'ngForTrackBy'|'ngForTemplate'>): NgForOf<T>;
}
NgForOf.ngTypeCtor(init: {
ngForOf: ['foo', 'bar'],
ngForTrackBy: null as any,
ngForTemplate: null as any,
});
```
This change only affects generated type check code, the generated
runtime code is not affected.
Fixes#32690
Resolves FW-1606
PR Close#33066
Currently, method `getVarDeclarations()` does not try to resolve the type of
exported variable from *ngIf directive. It always returns `any` type.
By resolving the real type of exported variable, it is now possible to use this
type information in language service and provide completions, go to definition
and quick info functionality in expressions that use exported variable.
Also language service will provide more accurate diagnostic errors during
development.
PR Close#33016
Currenly the `missing-injectable` migration only migrates providers referenced from
`@NgModule` definitions. The schematic currently does not cover the migration for
providers referenced in `@Directive` or `@Component` definitions.
We need to handle the following keys for directives/components:
- `@Directive` -> `providers`
- `@Component` -> `providers` and `viewProviders`.
This commit ensures that the migration handles providers for these
definitions.
PR Close#33011
When responses are cached ok during sw initialization,
but caching throws an error when handling api response,
this response never gets to client. Fix response
delivery by catching errors, add logging and 2 test cases.
Fixes#21412
PR Close#32996
Make safe caching and unsafe caching methods compatible so they can be
swapped. Gives more flexibility when writing http response processing
code.
PR Close#32996
Currently, the spans of expressions are recorded only relative to the
template node that they reside in, not their source file.
Introduce a `sourceSpan` property on expression ASTs that records the
location of an expression relative to the entire source code file that
it is in. This may allow for reducing duplication of effort in
ngtsc/typecheck/src/diagnostics later on as well.
Child of #31898
PR Close#31897
BREAKING CHANGE:
We no longer directly have a direct depedency on `tslib`. Instead it is now listed a `peerDependency`.
Users not using the CLI will need to manually install `tslib` via;
```
yarn add tslib
```
or
```
npm install tslib --save
```
PR Close#32167
There are numerous approaches to downlevelling backticked
template strings to ES5.
This commit handles yet another one that Babel applies.
PR Close#33097
In Babel `NodePath` objects have more useful information available than
simple AST nodes. But they are more difficult to create, especially for testing.
This commit prepares the way for parsing more complex code downlevelling
scenarios.
PR Close#33097
Previously, the list of missing dependencies was not explicitly joined,
which resulted in the default `,` joiner being used during
stringification.
This commit explicitly joins the missing dependency lines to avoid
unnecessary commas.
Before:
```
The target entry-point "some-entry-point" has missing dependencies:
- dependency 1
, - dependency 2
, - dependency 3
```
After:
```
The target entry-point "some-entry-point" has missing dependencies:
- dependency 1
- dependency 2
- dependency 3
```
PR Close#33139
Previously, the executable for the Angular Compatibility Compiler
(`ngcc`) was called `ivy-ngcc`. This would be confusing for users not
familiar with our internal terminology, especially given that we call it
`ngcc` in all our docs and presentations.
This commit renames the executable to `ngcc` and replaces `ivy-ngcc`
with a script that errors with an informative message (prompting the
user to use `ngcc` instead).
Jira issue: [FW-1624](https://angular-team.atlassian.net/browse/FW-1624)
PR Close#33140
A few specs in `completions_spec.ts` are non-deterministic and do not provide much value to test a specific behavior of language service.
Besides that, they are also slow to run.
PR Close#33120
Remove the following methods from MockHost:
1. `getMarkerLocations`: Replaced with `getLocationMarkerFor()`
2. `getReferenceMarkers`: Replaced with `getReferenceMarkerFor()`
PR Close#33115
Directive defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
ngDirectiveDef to dir. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
Note that the other "defs" (ngFactoryDef, etc) will be
prefixed and shortened in follow-up PRs, in an attempt to
limit how large and conflict-y this change is.
PR Close#33110
For elements in a template that look like custom elements, i.e.
containing a dash in their name, the template type checker will now
issue an error with instructions on how the resolve the issue.
Additionally, a property binding to a non-existent property will also
produce a more descriptive error message.
Resolves FW-1597
PR Close#33064
Component defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.
This commit adds the prefix and shortens the name from
`ngComponentDef` to `cmp`. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.
Note that the other "defs" (ngDirectiveDef, etc) will be
prefixed and shortened in follow-up PRs, in an attempt to
limit how large and conflict-y this change is.
PR Close#33088
Based on the results of the `directive_instantiate` executing host
bindings logic (in creation mode) account for ~23% of time spent in
the directive instantiation, even if a directive doesn't have host
bindings! This is clearly wastful hence a new flag.
PR Close#33102
Removes the deprecated `ngForm` element selector and all of the code related to it.
BREAKING CHANGES:
* `<ngForm></ngForm>` can no longer be used as a selector. Use `<ng-form></ng-form>` instead.
* The `NgFromSelectorWarning` directive has been removed.
* `FormsModule.withConfig` has been removed. Use the `FormsModule` directly.
PR Close#33058
JoostK
Matias Niemelä
ayazhafiz
Miško Hevery
Kara Erickson
Alex Rickabaugh
Keen Yee Liau
Greg Magolan
Pete Bacon Darwin
Paul Gschwendtner
Kapunahele Wong
Andrew Kushnir
Colum Ferry
Adam Plumer
George Kalpakas
crisbeto
Suguru Inatomi
Alison Gale
Igor Minar
Sahan Serasinghe
Olivier Combe
vikerman
Alex Eagle
Evan Martin
Pawel Kozlowski
JiaLiPassion
Gabriel Medeiros Coelho
Filipe Silva
Judy Bogart
Nikita Potapenko
Andrius
Denis Omelkov
Alan Agius
Keen Yee Liau