This commit introduces a new subscription in the `routerLinkActive` directive which triggers an update
when any of its associated routerLinks have changes. `RouterLinkActive` not only needs to know when
links are added or removed, but it also needs to know about if a link it already knows about
changes in some way.
Quick note that `from...mergeAll` is used instead of just a simple
`merge` (or `scheduled...mergeAll`) to avoid introducing new rxjs
operators in order to keep bundle size down.
Fixes#18469
PR Close#38511
This commit introduces a new subscription in the `routerLinkActive` directive which triggers an update
when any of its associated routerLinks have changes. `RouterLinkActive` not only needs to know when
links are added or removed, but it also needs to know about if a link it already knows about
changes in some way.
Quick note that `from...mergeAll` is used instead of just a simple
`merge` (or `scheduled...mergeAll`) to avoid introducing new rxjs
operators in order to keep bundle size down.
Fixes#18469
PR Close#38349
Now that Ivy compiler has a proper `TemplateTypeChecker` interface
(see https://github.com/angular/angular/pull/38105) we no longer need to
keep the temporary compiler implementation.
The temporary compiler was created to enable testing infrastructure to
be developed for the Ivy language service.
This commit removes the whole `ivy/compiler` directory and moves two
functions `createTypeCheckingProgramStrategy` and
`getOrCreateTypeCheckScriptInfo` to the `LanguageService` class.
Also re-enable the Ivy LS test since it's no longer blocking development.
PR Close#38310
Similarly to the change we landed in the `@angular/core` reflection
capabilities, we need to make sure that ngcc can detect pass-through
delegate constructors for classes using downleveled ES2015 output.
More details can be found in the preceding commit, and in the issue
outlining the problem: #38453.
Fixes#38453.
PR Close#38463
In the Angular Package Format, we always shipped UMD bundles and previously even ES5 module output.
With V10, we removed the ES5 module output but kept the UMD ES5 output.
For this, we were able to remove our second TypeScript transpilation. Instead we started only
building ES2015 output and then downleveled it to ES5 UMD for the NPM packages. This worked
as expected but unveiled an issue in the `@angular/core` reflection capabilities.
In JIT mode, Angular determines constructor parameters (for DI) using the `ReflectionCapabilities`. The
reflection capabilities basically read runtime metadata of classes to determine the DI parameters. Such
metadata can be either stored in static class properties like `ctorParameters` or within TypeScript's `design:params`.
If Angular comes across a class that does not have any parameter metadata, it tries to detect if the
given class is actually delegating to an inherited class. It does this naively in JIT by checking if the
stringified class (function in ES5) matches a certain pattern. e.g.
```js
function MatTable() {
var _this = _super.apply(this, arguments) || this;
```
These patterns are reluctant to changes of the class output. If a class is not recognized properly, the
DI parameters will be assumed empty and the class is **incorrectly** constructed without arguments.
This actually happened as part of v10 now. Since we downlevel ES2015 to ES5 (instead of previously
compiling sources directly to ES5), the class output changed slightly so that Angular no longer detects
it. e.g.
```js
var _this = _super.apply(this, __spread(arguments)) || this;
```
This happens because the ES2015 output will receive an auto-generated constructor if the class
defines class properties. This constructor is then already containing an explicit `super` call.
```js
export class MatTable extends CdkTable {
constructor() {
super(...arguments);
this.disabled = true;
}
}
```
If we then downlevel this file to ES5 with `--downlevelIteration`, TypeScript adjusts the `super` call so that
the spread operator is no longer used (not supported in ES5). The resulting super call is different to the
super call that would have been emitted if we would directly transpile to ES5. Ultimately, Angular no
longer detects such classes as having an delegate constructor -> and DI breaks.
We fix this by expanding the rather naive RegExp patterns used for the reflection capabilities
so that downleveled pass-through/delegate constructors are properly detected. There is a risk
of a false-positive as we cannot detect whether `__spread` is actually the TypeScript spread
helper, but given the reflection patterns already make lots of assumptions (e.g. that `super` is
actually the superclass, we should be fine making this assumption too. The false-positive would
not result in a broken app, but rather in unnecessary providers being injected (as a noop).
Fixes#38453
PR Close#38463
Previously placeholders were only rendered for dynamic interpolation
expressons in `$localize` tagged strings. But there are also potentially
dynamic values in ICU expressions too, so we need to render these as
placeholders when extracting i18n messages into translation files.
PR Close#38484
This commit updates the code to move generated i18n statements into the `consts` field of
ComponentDef to avoid invoking `$localize` function before component initialization (to better
support runtime translations) and also avoid problems with lazy-loading when i18n defs may not
be present in a chunk where it's referenced.
Prior to this change the i18n statements were generated at the top leve:
```
var I18N_0;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
var MSG_X = goog.getMsg(“…”);
I18N_0 = MSG_X;
} else {
I18N_0 = $localize('...');
}
defineComponent({
// ...
template: function App_Template(rf, ctx) {
i0.ɵɵi18n(2, I18N_0);
}
});
```
This commit updates the logic to generate the following code instead:
```
defineComponent({
// ...
consts: function() {
var I18N_0;
if (typeof ngI18nClosureMode !== "undefined" && ngI18nClosureMode) {
var MSG_X = goog.getMsg(“…”);
I18N_0 = MSG_X;
} else {
I18N_0 = $localize('...');
}
return [
I18N_0
];
},
template: function App_Template(rf, ctx) {
i0.ɵɵi18n(2, 0);
}
});
```
Also note that i18n template instructions now refer to the `consts` array using an index
(similar to other template instructions).
PR Close#38404
This commit fixes a regression from "fix(common): ensure
scrollRestoration is writable (#30630)" that caused scrolling to not
happen at all in browsers that do not support scroll restoration. The
issue was that `supportScrollRestoration` was updated to return `false`
if a browser did not have a writable `scrollRestoration`. However, the
previous behavior was that the function would return `true` if
`window.scrollTo` was defined. Every scrolling function in the
`ViewportScroller` used `supportScrollRestoration` and, with the update
in bb88c9fa3d, no scrolling would be
performed if a browser did not have writable `scrollRestoration` but
_did_ have `window.scrollTo`.
Note, that this failure was detected in the saucelabs tests. IE does not
support scroll restoration so IE tests were failing.
PR Close#38468
When removal of one view causes removal of another one from the same
ViewContainerRef it triggers an error with views length calculation. This commit
fixes this bug by removing a view from the list of available views before invoking
actual view removal (which might be recursive and relies on the length of the list
of available views).
Fixes#38201.
PR Close#38317
For a template that contains for example `<span *ngIf="first"></span>`
there's no need to render the `NgIf` guard expression, as the child
scope does not have any type-checking statements, so any narrowing
effect of the guard is not applicable.
This seems like a minor improvement, however it reduces the number of
flow-node antecedents that TypeScript needs to keep into account for
such cases, resulting in an overall reduction of type-checking time.
PR Close#38418
The template type-checker would always generate a directive declaration
even if its type was never used. For example, directives without any
input nor output bindings nor exportAs references don't need the
directive to be declared, as its type would never be used.
This commit makes the `TcbOp`s that are responsible for declaring a
directive as optional, such that they are only executed when requested
from another operation.
PR Close#38418
The template type-checker would generate a statement with a call
expression for all DOM elements in a template of the form:
```
const _t1 = document.createElement("div");
```
Profiling has shown that this is a particularly expensive call to
perform type inference on, as TypeScript needs to perform signature
selection of `Document.createElement` and resolve the exact type from
the `HTMLElementTagNameMap`. However, it can be observed that the
statement by itself does not contribute anything to the type-checking
result if `_t1` is not actually used anywhere, which is only rarely the
case---it requires that the element is referenced by its name from
somewhere else in the template. Consequently, the type-checker can skip
generating this statement altogether for most DOM elements.
The effect of this optimization is significant in several phases:
1. Less type-check code to generate
2. Less type-check code to emit and parse again
3. No expensive type inference to perform for the call expression
The effect on phase 3 is the most significant here, as type-checking is
not currently incremental in the sense that only phases 1 and 2 can
be reused from a prior compilation. The actual type-checking of all
templates in phase 3 needs to be repeated on each incremental
compilation, so any performance gains we achieve here are very
beneficial.
PR Close#38418
This commit replaces the old and slow `ReflectiveInjector` that was
deprecated in v5 with the new `Injector`. Note: This change was only
done in the spec files inside the `aio` folder.
While changing this, it was not possible to directly use `Injector.get`
to get the correct typing for the mocked classes. For example:
```typescript
locationService = injector.get<TestLocationService>(LocationService);
```
Fails with:
> Argument of type 'typeof LocationService' is not assignable to parameter
of type 'Type<TestLocationService> | InjectionToken<TestLocationService> |
AbstractType<TestLocationService>'.
Type 'typeof LocationService' is not assignable to type 'Type<TestLocationService>'.
Property 'searchResult' is missing in type 'LocationService' but required in type
'TestLocationService'.
Therefore, it was necessary to first convert to `unknown` and then to
`TestLocationService`.
```typescript
locationService = injector.get(LocationService) as unknown as TestLocationService;
```
PR Close#38408
We should define ngDevMode to false in Closure, but --define only works in the global scope.
With ngDevMode not being set to false, this size tracking test provides little value but a lot of
headache to continue updating the size.
PR Close#38449
The `@HostListener` functions and lifecycle hooks aren't intended to be public API but
do need to appear in the `.d.ts` files or type checking will break. Adding the
nodoc annotation will correctly hide this function on the docs site.
Again, note that `@internal` cannot be used because the result would be
that the functions then do not appear in the `.d.ts` files. This would
break lifecycle hooks because the class would be seen as not
implementing the interface correctly. This would also break
`HostListener` because the compiled templates would attempt to call the
`onClick` functions, but those would also not appear in the `d.ts` and
would produce errors like "Property 'onClick' does not exist on type 'RouterLinkWithHref'".
PR Close#38448
Fixes an error if a CSS custom property, used inside a host binding, has a
number in its name. The error is thrown because the styling parser only
expects characters from A to Z,dashes, underscores and a handful of other
characters.
Fixes#37292.
PR Close#38432
Previously we added a browser target for `firefox` into the
dev-infra package. It looks like as part of this change, we
accidentally switched the local web testing target to `firefox`.
Web tests are not commonly run locally as we use Domino and
NodeJS tests for primary development. Sometimes though we intend
to run tests in a browser. This would currently work with Firefox
but not on Windows (as Firefox is a noop there in Bazel).
This commit switches the primary browser back to `chromium`. Also
Firefox has been added as a second browser to web testing targets.
This allows us to reduce browsers in the legacy Saucelabs job. i.e.
not running Chrome and Firefox there. This should increase stability
and speed up the legacy job (+ reduced rate limit for Saucelabs).
PR Close#38435
Previously commit message types were provided as part of the ng-dev config in the repository
using the ng-dev toolset. This change removes this configuration expectation and instead
predefines the valid types for commit messages.
Additionally, with this new unified set of types requirements around providing a scope have
been put in place. Scopes are either required, optional or forbidden for a given commit
type.
PR Close#38430
We recently updated the benchpress package to have a more loose
Angular core peer dependency, and less other unused dependencies.
We should make sure to use that in the dev-infra package so that
peer dependencies can be satisified in consumer projects, and so
that less unused dependencies are brought into projects.
PR Close#38440
When a commit message fails validation, rather than throwing out the commit message entirely
the commit message is saved into a draft file and restored on the next commit attempt.
PR Close#38304
Runs the `ng-dev format changed` command whenever the `git commit` command is
run. As all changes which are checked by CI will require this check passing, this
change can prevent needless roundtrips to correct lint/formatting errors. This
automatic formatting can be bypassed with the `--no-verify` flag on the `git commit`
command.
PR Close#38402
Adds an ng-dev formatter option to format all of the staged files. This will can
be used to format only the staged files during the pre-commit hook.
PR Close#38402
Currently the Closure-related tests are not tree-shaking the dev-mode-only content, thus payload
size checks are failing even if dev-mode-only content is added.
The 2e9fdbde9e commit
added some logic to JIT compiler, which is likely triggered the payload size increase. This commit
updates the payload size limits for Closure-related test to get master and patch branches back to
the "green" state.
PR Close#38411
The compiler does not currently report errors when there's an `@Input()`
for a `private`, `protected`, or `readonly` directive/component class member.
This change adds an option to enable reporting errors when a template
attempts to bind to one of these restricted input fields.
PR Close#38249
Prior to this change, the template type checker would always use a
type-constructor to instantiate a directive. This type-constructor call
serves two purposes:
1. Infer any generic types for the directive instance from the inputs
that are passed in.
2. Type check the inputs that are passed into the directive's inputs.
The first purpose is only relevant when the directive actually has any
generic types and using a type-constructor for these cases inhibits
a type-check performance penalty, as a type-constructor's signature is
quite complex and needs to be generated for each directive.
This commit refactors the generated type-check blocks to only generate
a type-constructor call for directives that have generic types. Type
checking of inputs is achieved by generating individual statements for
all inputs, using assignments into the directive's fields.
Even if a type-constructor is used for type-inference of generic types
will the input checking also be achieved using the individual assignment
statements. This is done to support the rework of the language service,
which will start to extract symbol information from the type-check
blocks.
As a future optimization, it may be possible to reduce the number of
inputs passed into a type-constructor to only those inputs that
contribute the the type-inference of the generics. As this is not a
necessity at the moment this is left as follow-up work.
Closes#38185
PR Close#38249
"Quote expressions" are expressions that start with an identifier followed by a
comma, allowing arbitrary syntax to follow. These kinds of expressions would
throw a an error in the template type checker, which would make them hard to
track down. As quote expressions are not generally used at all, the error would
typically occur for URLs that would inadvertently occur in a binding:
```html
<a [href]="https://example.com"></a>
```
This commit lets such bindings be inferred as the `any` type.
Fixes#36568
Resolves FW-2051
PR Close#37917
In TypeScript 3.8 support was added for type-only imports, which only brings in
the symbol as a type, not their value. The Angular compiler did not yet take
the type-only keyword into account when representing symbols in type positions
as value expressions. The class metadata that the compiler emits would include
the value expression for its parameter types, generating actual imports as
necessary. For type-only imports this should not be done, as it introduces an
actual import of the module that was originally just a type-only import.
This commit lets the compiler deal with type-only imports specially, preventing
a value expression from being created.
Fixes#37900
PR Close#37912
When using the safe navigation operator in a binding expression, a temporary
variable may be used for storing the result of a side-effectful call.
For example, the following template uses a pipe and a safe property access:
```html
<app-person-view [enabled]="enabled" [firstName]="(person$ | async)?.name"></app-person-view>
```
The result of the pipe evaluation is stored in a temporary to be able to check
whether it is present. The temporary variable needs to be declared in a separate
statement and this would also cause the full expression itself to be pulled out
into a separate statement. This would compile into the following
pseudo-code instructions:
```js
var temp = null;
var firstName = (temp = pipe('async', ctx.person$)) == null ? null : temp.name;
property('enabled', ctx.enabled)('firstName', firstName);
```
Notice that the pipe evaluation happens before evaluating the `enabled` binding,
such that the runtime's internal binding index would correspond with `enabled`,
not `firstName`. This introduces a problem when the pipe uses `WrappedValue` to
force a change to be detected, as the runtime would then mark the binding slot
corresponding with `enabled` as dirty, instead of `firstName`. This results
in the `enabled` binding to be updated, triggering setters and affecting how
`OnChanges` is called.
In the pseudo-code above, the intermediate `firstName` variable is not strictly
necessary---it only improved readability a bit---and emitting it inline with
the binding itself avoids the out-of-order execution of the pipe:
```js
var temp = null;
property('enabled', ctx.enabled)
('firstName', (temp = pipe('async', ctx.person$)) == null ? null : temp.name);
```
This commit introduces a new `BindingForm` that results in the above code to be
generated and adds compiler and acceptance tests to verify the proper behavior.
Fixes#37194
PR Close#37911
In JIT compiled apps, component definitions are compiled upon first
access. For a component class `A` that extends component class `B`, the
`B` component is also compiled when the `InheritDefinitionFeature` runs
during the compilation of `A` before it has finalized. A problem arises
when the compilation of `B` would flush the NgModule scoping queue,
where the NgModule declaring `A` is still pending. The scope information
would be applied to the definition of `A`, but its compilation is still
in progress so requesting the component definition would compile `A`
again from scratch. This "inner compilation" is correctly assigned the
NgModule scope, but once the "outer compilation" of `A` finishes it
would overwrite the inner compilation's definition, losing the NgModule
scope information.
In summary, flushing the NgModule scope queue could trigger a reentrant
compilation, where JIT compilation is non-reentrant. To avoid the
reentrant compilation, a compilation depth counter is introduced to
avoid flushing the NgModule scope during nested compilations.
Fixes#37105
PR Close#37795
When navigations coming from Angular router we may have a payload stored in state property. When this
exists, set extras's state to the payload.
PR Close#28176
The changes in https://github.com/angular/angular/pull/38368 split `render3/i18n.ts` files into
smaller scripts, but the PullApprove config was not updated to reflect that. This commit updates
the PullApprove config to reflect the recent changes in i18n-related files.
PR Close#38403
Queries weren't matching directives that provide themselves via string
injection tokens, because the assumption was that any string passed to
a query decorator refers to a template reference.
These changes make it so we match both template references and
providers while giving precedence to the template references.
Fixes#38313.
Fixes#38315.
PR Close#38321
When we were outputting class members for `setClassMetadata` calls,
we were using the string representation of the member name. This can
lead to us generating invalid code when the name contains dashes and
is quoted (e.g. `@Output() 'has-dashes' = new EventEmitter()`), because
the quotes will be stripped for the string representation.
These changes fix the issue by using the original name AST node that was
used for the declaration and which knows whether it's supposed to be
quoted or not.
Fixes#38311.
PR Close#38387
This commit contains no changes to code. It only breaks `i18n.ts` file
into `i18n.ts` + `i18n_apply.ts` + `i18n_parse.ts` +
`i18n_postprocess.ts` for easier maintenance.
PR Close#38368
Defer loading the wildcard module so that it is not loaded until
subscribed to. This fixes an issue where it was being eagerly loaded.
As an example, wildcard module loading should only occur after all other potential
matches have been exhausted. A test case for this was also added to
demonstrate the fix.
Fixes#25494
PR Close#38348
When a ServerStylesHost instance is destroyed, all of the shared styles added to the DOM
head element by that instance should be removed. Without this removal, over time a large
number of style rules will build up and cause extra memory pressure. This brings the
ServerStylesHost in line with the DomStylesHost used by the platform browser, which
performs this same cleanup.
PR Close#38367
The currently selected ICU was incorrectly being stored it `TNode`
rather than in `LView`.
Remove: `TIcuContainerNode.activeCaseIndex`
Add: `LView[TIcu.currentCaseIndex]`
PR Close#38345
This commit performs minor refactoring in Forms package to get rid of duplicate functions.
It looks like the functions were duplicated due to a slightly different type signatures, but
their logic is completely identical. The logic in retained functions remains the same and now
these function also accept a generic type to achieve the same level of type safety.
PR Close#38371
This commit uses getElementById and getElementsByName when an anchor scroll happens,
to avoid escaping the anchor and wrapping the code in a try/catch block.
Related to #28960
PR Close#30143
This change provides better typing for the `LView.debug` property which
is intended to be used by humans while debugging the application with
`ngDevMode` turned on.
In addition this chang also adds jasmine matchers for better asserting
that `LView` is in the correct state.
PR Close#38359
The Chrome debugger is not able to render the syntax properly when the
code contains backticks. This is a known issue in Chrome and they have an
open [issue](https://bugs.chromium.org/p/chromium/issues/detail?id=659515) for that.
This commit adds the work-around to use double backslash with one
backtick ``\\` `` at the end of the line.
This can be reproduced by running the following command:
`yarn bazel test //packages/forms/test --config=debug`
When opening the chrome debugger tools, you should see the correct
code highlighting syntax.
PR Close#38332
For attribute bindings that target a directive's input, the template
type checker is able to verify that the type of the input expression is
compatible with the directive's declaration for said input. This
checking adheres to the `strictNullChecks` flag as configured in the
TypeScript compilation, such that errors are reported for expressions
that include `undefined` or `null` in their type if the input's
declaration does not include those types.
There was a bug with this level of type-checking for directives that
also declare coercion members, where binding an expression that includes
the `undefined` type to a directive's input that does not include the
`undefined` type would not be reported as error.
This commit fixes the bug by changing the type-constructor in type-check
code to use an intersection type of regular inputs and coerced inputs,
instead of a union type. The union type would inadvertently allow
`undefined` types to be assigned into the regular inputs, as that would
still satisfy the characteristics of a union type.
As a result of this change, you may start to see build failures if
`strictTemplates` is enabled and `strictInputTypes` is not disabled.
These errors are legitimate and some action is required to achieve a
successful build:
1. Update the templates for which an error is reported and introduce the
non-null assertion operator at the end of the expression. This
removes the `undefined` type from the expression's type, making it
appear as a valid assignment.
2. Disable `strictNullInputTypes` in the compiler options. This will
implicitly add the non-null assertion operators similar to option 1,
but all templates in the compilation are affected.
3. Update the directive's input declaration to include the `undefined`
type, if the directive is not implemented in an external library.
PR Close#38273
I18n code breaks up internationalization into opCodes which are then stored
in arrays. To make it easier to debug the codebase this PR adds `debug`
property to the arrays which presents the data in human readable format.
PR Close#38154
The order of asset- and data-groups in `ngsw-config.json` affects how a
request is handled by the ServiceWorker. Previously, this was not
clearly documented.
This commit describes how the order of asset-/data-groups affects
request handling.
Closes#21189
PR Close#38364
Previously, the [processCliCommands][1] dgeni processor, which is used
to generate the docs pages for the CLI commands, expected the CLI
commands overview page (with a URL of `cli`) to exist as a child of a
top-level navigation section (`CLI Commands`). If one tried to move the
`CLI Commands` section inside another section, `processCliCommnads`
would fail to find it and thus fail to generate the CLI commands docs.
This problem came up in #38353.
This commit updates the `processCliCommands` processor to be able to
find it regardless of the position of the `CLI Commands` section inside
the navigation doc.
[1]:
dca4443a8e/aio/tools/transforms/cli-docs-package/processors/processCliCommands.js (L7-L9)
PR Close#38365
Roll forward of #38147.
This allows Closure compiler to tree shake unused constructor calls to `NgModuleFactory`, which is otherwise considered
side-effectful. The Angular compiler generates factory objects which are exported but typically not used, as they are
only needed for compatibility with View Engine. This results in top-level constructor calls, such as:
```typescript
export const FooNgFactory = new NgModuleFactory(Foo);
```
`NgModuleFactory` has a side-effecting constructor, so this statement cannot be tree shaken, even if `FooNgFactory` is
never imported. The `NgModuleFactory` continues to reference its associated `NgModule` and prevents the module and all
its unused dependencies from being tree shaken, making Closure builds significantly larger than necessary.
The fix here is to wrap `NgModuleFactory` constructor with `noSideEffects(() => /* ... */)`, which tricks the Closure
compiler into assuming that the invoked function has no side effects. This allows it to tree-shake unused
`NgModuleFactory()` constructors when they aren't imported. Since the factory can be removed, the module can also be
removed (if nothing else references it), thus tree shaking unused dependencies as expected.
The one notable edge case is for lazy loaded modules. Internally, lazy loading is done as a side effect when the lazy
script is evaluated. For Angular, this side effect is registering the `NgModule`. In Ivy this is done by the
`NgModuleFactory` constructor, so lazy loaded modules **cannot** have their top-level `NgModuleFactory` constructor
call tree shaken. We handle this case by looking for the `id` field on `@NgModule` annotations. All lazy loaded modules
include an `id`. When this `id` is found, the `NgModuleFactory` is generated **without** with `noSideEffects()` call,
so Closure will not tree shake it and the module will lazy-load correctly.
PR Close#38320
This introduces a new `ModuleInfo` interface to represent some of the statically analyzed data from an `NgModule`. This
gets passed into transforms to give them more context around a given `NgModule` in the compilation.
PR Close#38320
PR #36601 introduces icons on all links if the link contains
https:// or http:// but there were some internal links left
which contained https://angular.io. Removed https://angular.io
from all these links.
PR Close#38360
This commit refactors the argument of the `parseEventName` function
to use an object with named properties instead of using an object indexer.
PR Close#38089
Some specialised browsers that do not support scroll restoration
(e.g. some web crawlers) do not allow `scrollRestoration` to be
writable.
We already sniff the browser to see if it has the `window.scrollTo`
method, so now we also check whether `window.history.scrollRestoration`
is writable too.
Fixes#30629
PR Close#30630
Previously, the `ngOnDestroy` method called `unsubscribe` regardless of if `subscription` had
been initialized. This can lead to an error attempting to call `unsubscribe` of undefined.
This change prevents this error, and instead only attempts `unsubscribe` when the subscription
has been defined.
PR Close#38344
The `TscPlugin` interface using a type of `ts.CompilerHost&Partial<UnifiedModulesHost>` for the `host` parameter
of the `wrapHost` method. However, prior to this change, the interface implementing `NgTscPlugin` class used a
type of `ts.CompilerHost&UnifiedModulesHost` for the parameter. This change corrects the inconsistency and
allows `UnifiedModulesHost` members to be optional when using the `NgtscPlugin`.
PR Close#38004
Previously, each Angular repository had its own strategy/configuration
for merging pull requests and cherry-picking. We worked out a new
strategy for labeling/branching/versioning that should be the canonical
strategy for all actively maintained projects in the Angular organization.
This PR provides a `ng-dev` merge configuration that implements the
labeling/branching/merging as per the approved proposal.
See the following document for the proposal this commit is based on
for the merge script labeling/branching: https://docs.google.com/document/d/197kVillDwx-RZtSVOBtPb4BBIAw0E9RT3q3v6DZkykU
The merge tool label configuration can be conveniently accesed
within each `.ng-dev` configuration, and can also be extended
if there are special labels on individual projects. This is one
of the reasons why the labels are not directly built into the
merge script. The script should remain unopinionated and flexible.
The configuration is conceptually powerful enough to achieve the
procedures as outlined in the versioning/branching/labeling proposal.
PR Close#38223
The merge tool provides a way for configurations to determine the branches
for a label lazily. This is supported because it allows labels to respect
the currently selected base branch through the Github UI. e.g. if `target: label`
is applied on a PR and the PR is based on the patch branch, then the change
could only go into the selected target branch, while if it would be based on
`master`, the change would be cherry-picked to `master` too. This allows for
convenient back-porting of changes if they did not apply cleanly to the primary
development branch (`master`).
We want to expand this function so that it is possible to report failures if an
invalid target label is appplied (e.g. `target: major` not allowed in
some situations), or if the Github base branch is not valid for the given target
label (e.g. if `target: lts` is used, but it's not based on a LTS branch).
PR Close#38223
The merge script currently accepts a configuration function that will
be invoked _only_ when the `ng-dev merge` command is executed. This
has been done that way because the merge tooling usually relies on
external requests to Git or NPM for constructing the branch configurations.
We do not want to perform these slow external queries on any `ng-dev` command
though, so this became a lazily invoked function.
This commit adds support for these configuration functions to run
asynchronously (by returning a Promise that will be awaited), so that
requests could also be made to the Github API. This is benefical as it
could avoid dependence on the local Git state and the HTTP requests
are more powerful/faster.
Additionally, in order to be able to perform Github API requests
with an authenticated instance, the merge tool will pass through
a `GithubClient` instance that uses the specified `--github-token`
(or from the environment). This ensures that all API requests use
the same `GithubClient` instance and can be authenticated (mitigating
potential rate limits).
PR Close#38223
@angular/core/testing provide `async` test utility, but the name `async` is
confusing with the javascript keyword `async`. And in some test case, if you
want to use both the `async` from `@angular/core/testing` and `async/await`,
you may have to write the code like this.
```typescript
it('test async operations', async(async() => {
const result = await asyncMethod();
expect(result).toEqual('expected');
}));
```
So in this PR, the `async` is renamed to `waitForAsync` and also deprecate `async`.
PR Close#37583
This reverts commit b4449e35bf.
The example given from the previous change was for a component selector and not a provider selector.
This change fixes it.
Fixes#38323.
PR Close#38325
Within an angular template, when a character entity is unable to be parsed, previously a generic
unexpected character error was thrown. This does not properly express the issue that was discovered
as the issue is actually caused by the discovered character making the whole of the entity unparsable.
The compiler will now instead inform via the error message what string was attempted to be parsed
and what it was attempted to be parsed as.
Example, for this template:
```
<p>
ģp
</p>
```
Before this change:
`Unexpected character "p"`
After this change:
`Unable to parse entity "ģp" - hexadecimal character reference entities must end with ";"`
Fixes#26067
PR Close#38319
This commit updates the `tslint.json` configuration file, that is used
to lint the docs examples, to match the one generated for new Angular
CLI apps. There are some minimal differences (marked with `TODO`
comments) for things, such as component selector prefix, that would
require extensive and/or difficult to validate changes in guides.
This commit also includes the final adjustments to make the docs
examples code compatible with the new tslint rules. (The bulk of the
work has been done in previous commits.)
PR Close#38143
This commit updates the docs examples to be compatible with the
following Angular-specific tslint rules:
- `component-selector`
- `directive-selector`
- `no-conflicting-lifecycle`
- `no-host-metadata-property`
- `no-input-rename`
- `no-output-native`
- `no-output-rename`
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`prefer-const` tslint rule.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`variable-name` tslint rule without requiring the
`allow-leading-underscore` and `allow-trailing-underscore` options.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`no-shadowed-variable` and `variable-name` tslint rules.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`member-ordering` tslint rule.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`no-angle-bracket-type-assertion` tslint rule.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`no-string-literal`, `object-literal-key-quotes` and
`object-literal-shorthand` tslint rules.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`only-arrow-functions` tslint rule.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`jsdoc-format` tslint rule.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`semicolon` tslint rule.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the `align`,
`space-before-function-paren` and `typedef-whitespace` tslint rules.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
This commit updates the docs examples to be compatible with the
`import-spacing` tslint rule.
This is in preparation of updating the docs examples `tslint.json` to
match the one generated for new Angular CLI apps in a future commit.
PR Close#38143
The `03-*` code style rule have been removed from the style guide in
be0bc799f3.
This commit removes the corresponding files and related unused code from
the`styleguide` example project.
PR Close#38143
This commit removes compiler instantiation at startup.
This is because the constructor is invoked during the plugin loading phase,
in which the project has not been completely loaded.
Retrieving `ts.Program` at startup will trigger an `updateGraph` operation,
which could only be called after the Project has loaded completely.
Without this change, the Ivy LS cannot be loaded as a tsserver plugin.
Note that the whole `Compiler` class is temporary, so changes made there are
only for development. Once we have proper integration with ngtsc the
`Compiler` class would be removed.
PR Close#38120
Currently the `getInheritedFactory` function is implemented to allow
closure to remove the call if the base factory is unused. However, this
method does not work with terser. By adding the PURE annotation,
terser will also be able to remove the call when unused.
PR Close#38291
This commit fixes a bug in View Engine whereby the compiler errorneously
thinks that a method of a component has decorator metadata when that
method is one of those in `Object.prototype`, for example `toString`.
This bug is discovered in v10.0.4 of `@angular/language-service` after
the default bundle format was switched from ES5 to ES2015.
ES5 output:
```js
if (propMetadata[propName]) {
decorators.push.apply(decorators, __spread(propMetadata[propName]));
}
```
ES2015 output:
```js
if (propMetadata[propName]) {
decorators.push(...propMetadata[propName]);
}
```
The bug was not discovered in ES5 because the polyfill for the spread
operator happily accepts parameters that do not have the `iterable`
symbol:
```js
function __spread() {
for (var ar = [], i = 0; i < arguments.length; i++)
ar = ar.concat(__read(arguments[i]));
return ar;
}
```
whereas in es2015 it’ll fail since the iterable symbol is not present in
`propMetadata['toString']` which evaluates to a function.
Fixes https://github.com/angular/vscode-ng-language-service/issues/859
PR Close#38292
This reverts commit 7f8c2225f2.
This commit caused test failures internally, which were traced back to the
optimizer removing NgModuleFactory constructor calls when those calls caused
side-effectful registration of NgModules by their ids.
PR Close#38303
This commit disables one TypeChecker test (added as a part of
https://github.com/angular/angular/pull/38105) which make assertions about the filename while
running on Windows.
Such assertions are currently suffering from a case sensitivity issue.
PR Close#38294
The documentation is not clear on how the base href and APP_BASE_HREF are used. This commit
should help clarify more complicated use-cases beyond the most common one of just a '/'
PR Close#38123
This allows Closure compiler to tree shake unused constructor calls to `NgModuleFactory`, which is otherwise considered
side-effectful. The Angular compiler generates factory objects which are exported but typically not used, as they are
only needed for compatibility with View Engine. This results in top-level constructor calls, such as:
```typescript
export const FooNgFactory = new NgModuleFactory(Foo);
```
`NgModuleFactory` has a side-effecting constructor, so this statement cannot be tree shaken, even if `FooNgFactory` is
never imported. The `NgModuleFactory` continues to reference its associated `NgModule` and prevents the module and all
its unused dependencies from being tree shaken. This effectively prevents all components from being tree shaken, making
Closure builds significantly larger than they should be.
The fix here is to wrap `NgModuleFactory` constructor with `noSideEffects(() => /* ... */)`, which tricks the Closure
compiler into assuming that the invoked function has no side effects. This allows it to tree-shake unused
`NgModuleFactory()` constructors when they aren't imported. Since the factory can be removed, the module can also be
removed (if nothing else references it), thus tree shaking unused components as expected.
PR Close#38147
Large strings constants are now wrapped in a function which is called whenever used. This works around a unique
limitation of Closure, where it will **always** inline string literals at **every** usage, regardless of how large the
string literal is or how many times it is used.The workaround is to use a function rather than a string literal.
Closure has differently inlining semantics for functions, where it will check the length of the function and the number
of times it is used before choosing to inline it. By using a function, `ngtsc` makes Closure more conservative about
inlining large strings, and avoids blowing up the bundle size.This optimization is only used if the constant is a large
string. A wrapping function is not included for other use cases, since it would just increase the bundle size and add
unnecessary runtime performance overhead.
PR Close#38253
Prior to this commit, SVG icons were all loaded in the constructor
of the `CustomIconRegistry`. This commit avoids that, and loads SVG
icons on demand.
PR Close#38268
This commit simplifies the creation of the temporary, hidden
`<textarea>` element used by `CopierService` by switching from absolute
to fixed positioning and not requiring page's scroll offset.
It also makes the following minor improvements:
- Make the element invisible (via `opacity: 0`).
- Instruct screen-readers to ignore the element (via
`aria-hidden: true`).
NOTE: These improvements are based on Angular CDK's [PendingCopy][1]
class and the changes proposed in PR angular/components#20073.
[1]: https://github.com/angular/components/blob/89b5fa89d1437c3054c5/src/cdk/clipboard/pending-copy.ts
PR Close#38244
The `CopierService` is used for copying text to the user's clipboard. It
is, for example, used in `CodeComponent` to copy example code snippets.
This is implemented by creating a temporary, hidden `<textarea>`
elements, setting its value to the text that needs to be copied,
executing the `copy` command and finally removing the element from the
DOM.
Previously, as a result of `CopierService`'s implementation, the focused
element would lose focus, while the temporary `<textarea>` element would
implicitly gain focus when selecting its contents. This had an even
worse side-effect on IE11, which seems to scroll to the bottom of the
containing element (here `<body>`) when the focused element is removed.
This commit fixes these issues by keeping track of the previously
focused element and restoring its focus after the copy operation.
NOTE: This fix is inspired by Angular CDK's [PendingCopy][1] class.
[1]: https://github.com/angular/components/blob/89b5fa89d1437c3054c5/src/cdk/clipboard/pending-copy.tsFixes#37796
PR Close#38244
This commit improves the code readability of the `CopierService` by:
- Adding/Improving JSDoc comments for methods.
- Avoiding unnecessary instance-wide properties.
- Fixing indentation to be consistent (at two spaces).
- Clearly separating the logic for creating and populating a
`<textarea>` from the logic for selecting and copying its contents.
PR Close#38244
This commit adds a method `getDiagnosticsForComponent` to the
`TemplateTypeChecker`, which does the minimum amount of work to retrieve
diagnostics for a single component.
With the normal `ReusedProgramStrategy` this offers virtually no improvement
over the standard `getDiagnosticsForFile` operation, but if the
`TypeCheckingProgramStrategy` supports separate shims for each component,
this operation can yield a faster turnaround for components that are
declared in files with many other components.
PR Close#38105
Previously, a stable template id was implemented for each component in a
file. This commit adds this id to each `TemplateDiagnostic` generated from
the template type-checker, so it can potentially be used for filtration.
PR Close#38105
This commit adds an `overrideComponentTemplate` operation to the template
type-checker. This operation changes the template used during template
type-checking operations.
Overriding a template causes any previous work for it to be discarded, and
the template type-checking engine will regenerate the TCB for that template
on the next request.
This operation can be used by a consumer such as the language service to
get rapid feedback or diagnostics as the user is editing a template file,
without the need for a full incremental build iteration.
Closes#38058
PR Close#38105
Previously, the `TemplateTypeChecker` abstraction allowed fetching
diagnostics for a single file, but under the hood would generate type
checking code for the entire program to satisfy the request.
With this commit, an `OptimizeFor` hint is passed to `getDiagnosticsForFile`
which indicates whether the user intends to request diagnostics for the
whole program or is truly interested in just the single file. If the latter,
the `TemplateTypeChecker` can perform only the work needed to produce
diagnostics for just that file, thus returning answers more efficiently.
PR Close#38105
The template type-checking engine relies on the abstraction interface
`TypeCheckingProgramStrategy` to create updated `ts.Program`s for
template type-checking. The basic API is that the type-checking engine
requests changes to certain files in the program, and the strategy provides
an updated `ts.Program`.
Typically, such changes are made to 'ngtypecheck' shim files, but certain
conditions can cause template type-checking to require "inline" operations,
which change user .ts files instead. The strategy used by 'ngc' (the
`ReusedProgramStrategy`) supports these kinds of updates, but other clients
such as the language service might not always support modifying user files.
To accommodate this, the `TypeCheckingProgramStrategy` interface was
modified to include a `supportsInlineOperations` flag. If an implementation
specifies `false` for inline support, the template type-checking system will
return diagnostics on components which would otherwise require inline
operations.
Closes#38059
PR Close#38105
This commit significantly refactors the 'typecheck' package to introduce a
new abstraction, the `TemplateTypeChecker`. To achieve this:
* a 'typecheck:api' package is introduced, containing common interfaces that
consumers of the template type-checking infrastructure can depend on
without incurring a dependency on the template type-checking machinery as
a whole.
* interfaces for `TemplateTypeChecker` and `TypeCheckContext` are introduced
which contain the abstract operations supported by the implementation
classes `TemplateTypeCheckerImpl` and `TypeCheckContextImpl` respectively.
* the `TemplateTypeChecker` interface supports diagnostics on a whole
program basis to start with, but the implementation is purposefully
designed to support incremental diagnostics at a per-file or per-component
level.
* `TemplateTypeChecker` supports direct access to the type check block of a
component.
* the testing utility is refactored to be a lot more useful, and new tests
are added for the new abstraction.
PR Close#38105
Previously in the template type-checking engine, it was assumed that every
input file would have an associated type-checking shim. The type check block
code for all components in the input file would be generated into this shim.
This is fine for whole-program type checking operations, but to support the
language service's requirements for low latency, it would be ideal to be
able to check a single component in isolation, especially if the component
is declared along with many others in a single file.
This commit removes the assumption that the file/shim mapping is 1:1, and
introduces the concept of component-to-shim mapping. Any
`TypeCheckingProgramStrategy` must provide such a mapping.
To achieve this:
* type checking record information is now split into file-level data as
well as per-shim data.
* components are now assigned a stable `TemplateId` which is unique to the
file in which they're declared.
PR Close#38105
When the `NgIf` directive is used in a template, its context variables
can be used to capture the bound value. This is sometimes used in
complex expressions, where the resulting value is captured in a
context variable. There's two syntax forms available:
1. Binding to `NgIfContext.ngIf` using the `as` syntax:
```html
<span *ngIf="enabled && user as u">{{u.name}}</span>
```
2. Binding to `NgIfContext.$implicit` using the `let` syntax:
```html
<span *ngIf="enabled && user; let u">{{u.name}}</span>
```
Because of the semantics of `ngIf`, it is known that the captured
context variable is truthy, however the template type checker
would not consider them as such and still report errors when
`strict` is enabled.
This commit updates `NgIf`'s context guard to make the types of the
context variables truthy, avoiding the issue.
Based on https://github.com/angular/angular/pull/35125
PR Close#36627
```
export const __core_private_testing_placeholder__ = '';
```
This API should be removed. But doing so seems to break `google3` and
so it requires a bit of investigation. A work around is to mark it as
`@codeGenApi` for now and investigate later.
PR Close#38274
Since PullApprove starts all inactive groups as a pending state, to properly
assess if any groups we care about are pending we must only check the active
groups. We additionally do this with rejected because the intention of the
reusable checks is around checking active rules only.
PR Close#38259
`Attribute` decorator has defined `attributeName` as optional but actually its
mandatory and compiler throws an error if `attributeName` is undefined. Made
`attributeName` mandatory in the `Attribute` decorator to reflect this functionality
Fixes#32658
PR Close#38131
It was determined that the list of 'pending' groups also included inactive groups.
That means that the 'no-groups-above-this-pending' would generally fail because
there's almost always some inactive group above it.
This commit removes the conditions for phased review while we
investigate if the inactive groups can be excluded.
PR Close#38257
Project DOCS-736 to rewrite headings to focus on user tasks,
verify that the content is up-to-date and complete, and
add relevant links to other NgModule topics to improve readability.
Also addresses one of many issues in GitHub issue 21531.
PR Close#38206
* Add alxhub, atscott, and AndrewKushnir to code owners
* Add atscott & AndrewKushnir to public-api and size-tracking
Follow-up to #37994
PR Close#38170
Project DOCS-734 to rewrite headings to focus on user tasks,
verify that the content is up-to-date and complete, and
add relevant links to other NgModule topics to improve readability.
Also addresses one of many issues in GitHub issue 21531.
PR Close#38148
Now we have two implementations of Zone in Angular, one is NgZone, the other is NoopZone.
They should have the same signatures, includes
1. properties
2. methods
In this PR, unify the signatures of the two implementations, and remove the unnecessary cast.
PR Close#37581
The current implementation of the TypeScriptReflectionHost does not account for members that
are string literals, i.e. `class A { 'string-literal-prop': string; }`
PR Close#38226
This commit refactors the argument of the `parseEventName` function
to use an object with named properties instead of using an object indexer.
PR Close#38089
Previously the instructions were included in the golden files to monitor the frequency and rate of
the instruction API changes for the purpose of understanding the stability of this API (as it was
considered for becoming a public API and deployed to npm via generated code).
This experiment has confirmed that the instruction API is not stable enough to be used as public
API. We've since also came up with an alternative plan to compile libraries with the Ivy compiler
for npm deployment and this plan does not rely on making Ivy instructions public.
For these reasons, I'm removing the instructions from the golden files as it's no longer important
to track them.
The are three instructions that are still being included: `ɵɵdefineInjectable`, `ɵɵinject`, and
`ɵɵInjectableDef`.
These instructions are already generated by the VE compiler to support tree-shakable providers, and
code depending on these instructions is already deployed to npm. For this reason we need to treat
them as public api.
This change also reduces the code review overhead, because changes to public api golden files now
require multiple approvals.
PR Close#38224
Close#31684.
In some rxjs operator, such as `retryWhen`, rxjs internally will set
`Subscription._unsubscribe` method to null, and the current zone.js monkey patch
didn't handle this case correctly, even rxjs set _unsubscribe to null, zone.js
still return a function by finding the prototype chain.
This PR fix this issue and the following test will pass.
```
const errorGenerator = () => {
return throwError(new Error('error emit'));
};
const genericRetryStrategy = (finalizer: () => void) => (attempts: Observable<any>) =>
attempts.pipe(
mergeMap((error, i) => {
const retryAttempt = i + 1;
if (retryAttempt > 3) {
return throwError(error);
}
return timer(retryAttempt * 1);
}),
finalize(() => finalizer()));
errorGenerator()
.pipe(
retryWhen(genericRetryStrategy(() => {
expect(log.length).toBe(3);
done();
})),
catchError(error => of(error)))
.subscribe()
```
PR Close#37091
This commit clarifies some of the language regarding pipes in the pipes guide.
This commit also specifies the term transforming rather than formatting.
PR Close#37950
Prior to this commit, duplicated styles defined in multiple components in the same file were not
shared between components, thus causing extra payload size. This commit updates compiler logic to
use `ConstantPool` for the styles (while generating the `styles` array on component def), which
enables styles sharing when needed (when duplicates styles are present).
Resolves#38204.
PR Close#38213
Prior to this commit, the `ConstantPool` ignored all primitive values. It turned out that it's
beneficial to include strings above certain length to the pool as well. This commit updates the
`ConstantPool` logic to allow such strings to be shared across multiple instances if needed.
For instance, this is helpful for component styles that might be reused across multiple components
in the same file.
PR Close#38213
This commit splits the transformation into 2 separate steps: Ivy compilation and actual transformation
of corresponding TS nodes. This is needed to have all `o.Expression`s generated before any TS transforms
happen. This allows `ConstantPool` to properly identify expressions that can be shared across multiple
components declared in the same file.
Resolves#38203.
PR Close#38213
This commit refactors Router package to move config utils to a separate file for better
organization and to resolve the problem with circular dependency issue.
Resolves#38212.
PR Close#38229
There are a few changes in this PR to ensure conditions that are based
on groups (i.e. `- groups.pending.length == 0`) do not fail the verify
task:
* Remove the warning when a condition is encountered that depends on the
`groups` state. The warning will otherwise be printed once for every
file that triggers the execution of the condition (400,000+ times)
* Add an `unverifiable` flag to `GroupCondition` interface and set it to
true when an error is encountered due to attempting to get the state of
`groups` in a condition
* Ignore any unverifiable conditions when gathering unmatched
conditions. These should not be considered `unmatched` for verification
purposes.
* Print the unverifiable conditions by group in the results
Sample output:
```
┌──────────────────────────────────────────────────────────────────────────────┐
│ PullApprove results by group │
└──────────────────────────────────────────────────────────────────────────────┘
Groups skipped (4 groups)
Matched conditions by Group (37 groups)
Unmatched conditions by Group (0 groups)
Unverifiable conditions by Group (3 groups)
[public-api]
len(groups.pending.exclude("required-minimum-review")...
len(groups.rejected.exclude("required-minimum-review")...
[size-tracking]
len(groups.pending.exclude("required-minimum-review")...
len(groups.rejected.exclude("required-minimum-review")...
[circular-dependencies]
len(groups.pending.exclude("required-minimum-review")...
len(groups.rejected.exclude("required-minimum-review")...
```
PR Close#37798
The size-tracking, public-api, and circular-dependencies groups can get a lot of
PRs to review. In addition, the members of these groups do not always
have the necessary context to fully review the PR in question. This
change ensures that the owners in the groups where the changes are being
made have approve the changes (ie, the aren't pending or rejected)
before requesting final sign-off from these three critical groups.
PR Close#37798
global-approvers, global-docs-approvers, and required-minimum-review groups are always active. It's useful
to have aliases for getting groups that are active/pending/rejected while excluding these few.
PR Close#37798
Since the PR #36540 change the zone.js bundles to Angular Package Format, the
bundle name/location are changed, so this PR updated the `README.md` doc for the
zone bundles.
Also add the recent added new bundles `zone-patch-message-port` doc.
PR Close#37919
Close#35473
zone.js nodejs patch should also patch `EventEmitter.prototype.off` as `removeListener`.
So `off` can correctly remove the listeners added by `EventEmitter.prototype.addListener`
PR Close#37863
Close#37333
`clearTimeout` is patched by `zone.js`, and it finally calls the native delegate of `clearTimeout`,
the current implemention only call `clearNative(id)`, but it should call on object `global` like
`clearNative.call(global, id)`. Otherwise in some env, it will throw error
`clearTimeout called on an object that does not implement interface Window`
PR Close#37858
Separate `EventTarget`, `FileReader`, `MutationObserver` and `IntersectionObserver` patches into different module.
So the user can disable those modules separately.
PR Close#31657
Previously, `ExampleZipper` (the tool used for creating ZIP archives
from our docs examples) used the `PackageJsonCustomizer` to generate
`package.json` files for each example type. This had the following
drawbacks:
- The generated files had to be kept up-to-date with the corresponding
boilerplate files in `aio/tools/examples/shared/boilerplate/` and
there was no easy way to find out when the files got out-of-sync.
- The `PackageJsonCustomizer` logic was non-trivial and difficult to
reason about.
- The same information was duplicated in the boilerplate files and the
customizer configuration files.
This setup was useful when we used a single `package.json` file for all
docs examples. Now, however, each example type can have its own
boilerplate `package.json` file, including scripts and dependencies
relevant to the example type. Therefore, it is no longer necessary to
generate `package.json` files for ZIP archives.
This commit eliminates the drawbacks mentioned above and simplifies the
`ExampleZipper` tool by removing `PackageJsonCustomizer` and re-using
the boilerplate `package.json` files for ZIP archives.
The changes in this commit also fix some ZIP archives that were
previously broken (for example due to missing dependencies).
PR Close#38192
Conditions can refer to the groups array that is a list of the preceding groups.
This commit adds support to the verification for those conditions.
This commit also adds some tests to the parsing and condition matching
to ensure everything works as expected.
PR Close#38164
This commit creates a sample forms test application to introduce the symbol
tests. It serves as a guard to ensure that any future work on the
forms package does not unintentionally increase the payload size.
PR Close#38044
A util file is added to forms test package:
- it exposes simpleAsyncValidator, asyncValidator and asyncValidatorReturningObservable validators
- it refactors simpleAsyncValidator and asyncValidator to use common promise creation code
- it exposes currentStateOf allowing to get the validation state of a list of AbstractControl
Closes#37831
PR Close#38020
Default change detection fails in some cases for @angular/elements where
component events are called from the wrong zone.
This fixes the issue by running all ComponentNgElementStrategy methods
in the same zone it was created in.
Fixes#24181
PR Close#37814
Create initial document for Angular framework coding standards. This
document will evolve over time. This version contains all
non-controversial rules as discussed in a recent team meeting. Some text
and examples were copied from angular/components.
PR Close#37700
To avoid unnecessary code duplication in docs examples, we have some
boilerplate files for various example types (in
`aio/tools/examples/shared/boilerplate/`). These files are copied to
each example project in `aio/content/examples/` (according to the
example's type, as specified in its `example-config.json` file).
Previously, the `example-boilerplate.js`, which is responsible for
copying the boilerplate files, had lists for files to be copied for each
project type and only copied the listed files from the boilerplate
directory to the example directory. This approach had some drawbacks:
- Files need to be updated in two separate locations: in the boilerplate
directory that includes the files and the file list in
`example-boilerplate.js`.
- It is easy to add a file in the boilerplate directory but forget to
add it in `example-boilerplate.js` and not realize that it is not
being included in the example project (including the generated
StackBlitz project and ZIP archive).
This commit changes the approach by removing the boilerplate file
listings from `example-boilerplate.js` and copying all files from a
boilerplate directory to example directories. This addresses the above
drawbacks and simplifies the `example-boilerplate.js` script.
I have verified that the resulting code example doc regions as well as
the generated StackBlitz projects and ZIP archives are identical to the
ones generated before this commit.
PR Close#38173
Previously, the `.gitignore` file that is part of the boilerplate files
for CLI-based docs examples (located in
`aio/tools/examples/shared/boilerplate/cli/`) was not added to the
example projects, because it was not included in the boilerplate file
list in `example-boilerplate.js`.
This commit fixes it by adding the `.gitignore` file to the list. This
ensures that docs examples more closely match CLI-generated projects.
PR Close#38173
Docs examples of type `i18n` need a slightly modified version of
`polyfills.ts` that imports `@angular/localize/init`. Previously, this
file was not included in `i18n` example projects for two reasons:
- While the file was included in the `i18n` boilerplate files (at
`aio/tools/examples/shared/boilerplate/i18n/`), it was not included in
the boilerplate file list in `example-boilerplate.js`.
- The file was in the wrong location: It was located at the project root
instead of inside the `src/` directory.
This commit addresses the above issues (i.e. adds the file to the
boilerplate file list for `i18n` projects and moves the file inside the
`src/` directory).
PR Close#38173
There were some `systemjs.config.web[.build].js` files in the `systemjs`
boilerplate directory that are not used any more. In the past, these
files were used in the Plunker-based live examples, but we no longer use
Plunker for live examples.
This commit removes these obsolete files.
PR Close#38173
There were two `typings.d.ts` files with SystemJS module definitions in
`aio/src/` and `aio/tools/examples/shared/boilerplate/cli/`. These are
remnants from old CLI versions that used SystemJS and are no longer
needed. For docs examples specifically, these files were never copied
over to example projects and thus not included in StackBlitz projects
and ZIP archives.
This commit removes these obsolete files.
PR Close#38173
Developer docs previously stated to use `yarn bazel test //packages/...` which attempts to test all packages with View
Engine (the default), even though not all support View Engine. This updates the doc to use `yarn test-ivy-aot` and
`yarn test-non-ivy` which tests both Ivy and View Engine while filtering out tests which are not compatible with each
renderer.
PR Close#38149
This commit fixes the spelling of the singular form
of the word function to the plural spelling in
packages/core/src/application_init.ts
PR Close#36586
* **core:** detect DI parameters in JIT mode for downleveled ES2015 classes ([#38463](https://github.com/angular/angular/issues/38463)) ([ca07da4](https://github.com/angular/angular/commit/ca07da4)), closes [#38453](https://github.com/angular/angular/issues/38453)
* **core:** move generated i18n statements to the `consts` field of ComponentDef ([#38404](https://github.com/angular/angular/issues/38404)) ([cb05c01](https://github.com/angular/angular/commit/cb05c01))
* **compiler-cli:** don't emit template guards when child scope is empty ([#38418](https://github.com/angular/angular/issues/38418)) ([1388c17](https://github.com/angular/angular/commit/1388c17))
* **compiler-cli:** only generate directive declarations when used ([#38418](https://github.com/angular/angular/issues/38418)) ([fb8f4b4](https://github.com/angular/angular/commit/fb8f4b4))
* **compiler-cli:** only generate type-check code for referenced DOM elements ([#38418](https://github.com/angular/angular/issues/38418)) ([f42e6ce](https://github.com/angular/angular/commit/f42e6ce))
### Code Refactoring
* **router:** export DefaultRouteReuseStrategy to Router public_api ([#31575](https://github.com/angular/angular/issues/31575)) ([ca79880](https://github.com/angular/angular/commit/ca79880))
* **core:** detect DI parameters in JIT mode for downleveled ES2015 classes ([#38500](https://github.com/angular/angular/issues/38500)) ([863acb6](https://github.com/angular/angular/commit/863acb6)), closes [#38453](https://github.com/angular/angular/issues/38453)
* **core:** error if CSS custom property in host binding has number in name ([#38432](https://github.com/angular/angular/issues/38432)) ([cb83b8a](https://github.com/angular/angular/commit/cb83b8a)), closes [#37292](https://github.com/angular/angular/issues/37292)
* **compiler-cli:** avoid creating value expressions for symbols from type-only imports ([#37912](https://github.com/angular/angular/issues/37912)) ([18098d3](https://github.com/angular/angular/commit/18098d3)), closes [#37900](https://github.com/angular/angular/issues/37900)
* **compiler-cli:** type-check inputs that include undefined when there's coercion members ([#38273](https://github.com/angular/angular/issues/38273)) ([7525f3a](https://github.com/angular/angular/commit/7525f3a))
* **router:** defer loading of wildcard module until needed ([#38348](https://github.com/angular/angular/issues/38348)) ([8f708b5](https://github.com/angular/angular/commit/8f708b5)), closes [#25494](https://github.com/angular/angular/issues/25494)
* **router:** restore 'history.state' object for navigations coming from Angular router ([#28108](https://github.com/angular/angular/issues/28108)) ([#28176](https://github.com/angular/angular/issues/28176)) ([df76a20](https://github.com/angular/angular/commit/df76a20))
### Features
* **compiler-cli:** Add compiler option to report errors when assigning to restricted input fields ([#38249](https://github.com/angular/angular/issues/38249)) ([71138f6](https://github.com/angular/angular/commit/71138f6))
* **router:** better warning message when a router outlet has not been instantiated ([#30246](https://github.com/angular/angular/issues/30246)) ([1609815](https://github.com/angular/angular/commit/1609815))
* **compiler:** evaluate safe navigation expressions in correct binding order ([#37911](https://github.com/angular/angular/issues/37911)) ([f5b9d87](https://github.com/angular/angular/commit/f5b9d87)), closes [#37194](https://github.com/angular/angular/issues/37194)
* **compiler-cli:** avoid creating value expressions for symbols from type-only imports ([#38415](https://github.com/angular/angular/issues/38415)) ([ca2b4bc](https://github.com/angular/angular/commit/ca2b4bc)), closes [#37912](https://github.com/angular/angular/issues/37912)
* **compiler-cli:** infer quote expressions as any type in type checker ([#37917](https://github.com/angular/angular/issues/37917)) ([5b87c67](https://github.com/angular/angular/commit/5b87c67)), closes [#36568](https://github.com/angular/angular/issues/36568)
* **compiler-cli:** mark eager `NgModuleFactory` construction as not side effectful ([#38320](https://github.com/angular/angular/issues/38320)) ([016a41b](https://github.com/angular/angular/commit/016a41b)), closes [#38147](https://github.com/angular/angular/issues/38147)
* **compiler-cli:** match wrapHost parameter types within plugin interface ([#38004](https://github.com/angular/angular/issues/38004)) ([df01a82](https://github.com/angular/angular/commit/df01a82))
* **compiler-cli:** preserve quotes in class member names ([#38387](https://github.com/angular/angular/issues/38387)) ([c9acb7b](https://github.com/angular/angular/commit/c9acb7b)), closes [#38311](https://github.com/angular/angular/issues/38311)
* **core:** prevent NgModule scope being overwritten in JIT compiler ([#37795](https://github.com/angular/angular/issues/37795)) ([3acebdc](https://github.com/angular/angular/commit/3acebdc)), closes [#37105](https://github.com/angular/angular/issues/37105)
* **core:** Store the currently selected ICU in `LView` ([#38345](https://github.com/angular/angular/issues/38345)) ([ee5123f](https://github.com/angular/angular/commit/ee5123f))
* **platform-server:** remove styles added by ServerStylesHost on destruction ([#38367](https://github.com/angular/angular/issues/38367)) ([7f11149](https://github.com/angular/angular/commit/7f11149))
* **router:** prevent calling unsubscribe on undefined subscription in RouterPreloader ([#38344](https://github.com/angular/angular/issues/38344)) ([4151314](https://github.com/angular/angular/commit/4151314))
* **service-worker:** fix the chrome debugger syntax highlighter ([#38332](https://github.com/angular/angular/issues/38332)) ([f5d5bac](https://github.com/angular/angular/commit/f5d5bac))
<aname="10.1.0-next.4"></a>
# 10.1.0-next.4 (2020-08-04)
### Bug Fixes
* **common:** narrow `NgIf` context variables in template type checker ([#36627](https://github.com/angular/angular/issues/36627)) ([9c8bc4a](https://github.com/angular/angular/commit/9c8bc4a))
* **compiler:** mark `NgModuleFactory` construction as not side effectful ([#38147](https://github.com/angular/angular/issues/38147)) ([7f8c222](https://github.com/angular/angular/commit/7f8c222))
### Features
* **core:** rename async to waitForAsync to avoid confusing ([#37583](https://github.com/angular/angular/issues/37583)) ([8f07429](https://github.com/angular/angular/commit/8f07429))
* **core:** update reference and doc to change `async` to `waitAsync`. ([#37583](https://github.com/angular/angular/issues/37583)) ([8fbf40b](https://github.com/angular/angular/commit/8fbf40b))
<aname="10.0.8"></a>
## 10.0.8 (2020-08-04)
### Bug Fixes
* **compiler:** add PURE annotation to getInheritedFactory calls ([#38291](https://github.com/angular/angular/issues/38291)) ([03d8e31](https://github.com/angular/angular/commit/03d8e31))
* **compiler:** Metadata should not include methods on Object.prototype ([#38292](https://github.com/angular/angular/issues/38292)) ([879ff08](https://github.com/angular/angular/commit/879ff08))
<aname="10.1.0-next.3"></a>
# 10.1.0-next.3 (2020-07-28)
### Bug Fixes
* **elements:** run strategy methods in correct zone ([#37814](https://github.com/angular/angular/issues/37814)) ([8df888d](https://github.com/angular/angular/commit/8df888d)), closes [#24181](https://github.com/angular/angular/issues/24181)
<aname="10.0.6"></a>
## 10.0.6 (2020-07-28)
### Bug Fixes
* **compiler:** share identical stylesheets between components in the same file ([#38213](https://github.com/angular/angular/issues/38213)) ([264950b](https://github.com/angular/angular/commit/264950b)), closes [#38204](https://github.com/angular/angular/issues/38204)
* **compiler-cli:** Add support for string literal class members ([#38226](https://github.com/angular/angular/issues/38226)) ([b1e7775](https://github.com/angular/angular/commit/b1e7775))
* **core:** unify the signature between ngZone and noopZone ([#37581](https://github.com/angular/angular/issues/37581)) ([d5264f5](https://github.com/angular/angular/commit/d5264f5))
<aname="10.1.0-next.2"></a>
# 10.1.0-next.2 (2020-07-22)
### Bug Fixes
* **core:** Allow modification of lifecycle hooks any time before bootstrap ([#35464](https://github.com/angular/angular/issues/35464)) ([737506e](https://github.com/angular/angular/commit/737506e)), closes [#30497](https://github.com/angular/angular/issues/30497)
### Features
* **common:** add ReadonlyMap in place of Map in keyValuePipe ([#37311](https://github.com/angular/angular/issues/37311)) ([3373453](https://github.com/angular/angular/commit/3373453)), closes [#37308](https://github.com/angular/angular/issues/37308)
* **forms:** AbstractControl to store raw validators in addition to combined validators function ([#37881](https://github.com/angular/angular/issues/37881)) ([ad7046b](https://github.com/angular/angular/commit/ad7046b))
* **localize:** allow duplicate messages to be handled during extraction ([#38082](https://github.com/angular/angular/issues/38082)) ([cf9a47b](https://github.com/angular/angular/commit/cf9a47b)), closes [#38077](https://github.com/angular/angular/issues/38077)
<aname="10.0.5"></a>
## 10.0.5 (2020-07-22)
### Bug Fixes
* **compiler:** properly associate source spans for implicitly closed elements ([#38126](https://github.com/angular/angular/issues/38126)) ([e80278c](https://github.com/angular/angular/commit/e80278c)), closes [#36118](https://github.com/angular/angular/issues/36118)
* **core:** Allow modification of lifecycle hooks any time before bootstrap ([#38119](https://github.com/angular/angular/issues/38119)) ([14b4718](https://github.com/angular/angular/commit/14b4718)), closes [#30497](https://github.com/angular/angular/issues/30497)
* **core:** error due to integer overflow when there are too many host bindings ([#38014](https://github.com/angular/angular/issues/38014)) ([7b6e73c](https://github.com/angular/angular/commit/7b6e73c)), closes [#37876](https://github.com/angular/angular/issues/37876) [#37876](https://github.com/angular/angular/issues/37876)
* **core:** incorrectly validating properties on ng-content and ng-container ([#37773](https://github.com/angular/angular/issues/37773)) ([17ddab9](https://github.com/angular/angular/commit/17ddab9))
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