Though we currently have the knowledge of where the `key` for an
attribute binding appears during parsing, we do not propagate this
information to the output AST. This means that once we produce the
template AST, we have no way of mapping a template position to the key
span alone. The best we can currently do is map back to the
`sourceSpan`. This presents problems downstream, specifically for the
language service, where we cannot provide correct information about a
position in a template because the AST is not granular enough.
PR Close#38898
There is an inconsistency in overrideProvider behaviour. Testing documentation says
(https://angular.io/guide/testing-components-basics#createcomponent) that all override...
methods throw error if TestBed is already instantiated. However overrideProvider doesn't throw any error, but (same as
other override... methods) doesn't replace providers if TestBed is instantiated. Add TestBed instantiation check to
overrideProvider method to make it consistent.
BREAKING CHANGE:
If you call `TestBed.overrideProvider` after TestBed initialization, provider overrides are not applied. This
behavior is consistent with other override methods (such as `TestBed.overrideDirective`, etc) but they
throw an error to indicate that, when the check was missing in the `TestBed.overrideProvider` function.
Now calling `TestBed.overrideProvider` after TestBed initialization also triggers an
error, thus there is a chance that some tests (where `TestBed.overrideProvider` is
called after TestBed initialization) will start to fail and require updates to move `TestBed.overrideProvider` calls
before TestBed initialization is completed.
Issue mentioned here: https://github.com/angular/angular/issues/13460#issuecomment-636005966
Documentation: https://angular.io/guide/testing-components-basics#createcomponent
PR Close#38717
This commit introduces a new option for the service worker, called
`navigationRequestStrategy`, which adds the possibility to force the service worker
to always create a network request for navigation requests.
This enables the server redirects while retaining the offline behavior.
Fixes#38194
PR Close#38565
This commit refactors the `ExpressionTranslatorVisitor` so that it
is not tied directly to the TypeScript AST. Instead it uses generic
`TExpression` and `TStatement` types that are then converted
to concrete types by the `TypeScriptAstFactory`.
This paves the way for a `BabelAstFactory` that can be used to
generate Babel AST nodes instead of TypeScript, which will be
part of the new linker tool.
PR Close#38775
Previously each identifier was being imported individually, which made for a
very long import statement, but also obscurred, in the code, which identifiers
came from the compiler.
PR Close#38775
This file contains a number of classes making it long and hard to work with.
This commit splits the `ImportManager`, `Context` and `TypeTranslatorVisitor`
classes, along with associated functions and types into their own files.
PR Close#38775
When the target of the compiler is ES2015 or newer then we should
be generating `let` and `const` variable declarations rather than `var`.
PR Close#38775
Using an interface makes the code cleaner and more readable.
This change also adds the `range` property to the type to be used
for source-mapping.
PR Close#38775
The cast to `ts.Identifier` was a hack that "just happened to work".
The new approach is more robust and doesn't have to undermine
the type checker.
PR Close#38775
Let's say we have a code like
```html
<div<span>123</span>
```
Currently this gets parsed into a tree with the element tag `div<span`.
This has at least two downsides:
- An incorrect diagnostic that `</span>` doesn't close an element is
emitted.
- A consumer of the parse tree using it for editor services is unable to
provide correct completions for the opening `<span>` tag.
This patch attempts to fix both issues by instead parsing the code into
the same tree that would be parsed for `<div></div><span>123</span>`.
In particular, we do this by optimistically scanning an open tag as
usual, but if we do not notice a terminating '>', we mark the tag as
"incomplete". A parser then emits an error for the incomplete tag and
adds a synthetic (recovered) element node to the tree with the
incomplete open tag's name.
What's the downside of this? For one, a breaking change.
<ol>
<li>
The first breaking change is that `<` symbols that are ambiguously text
or opening tags will be parsed as opening tags instead of text in
element bodies. Take the code
```html
<p>a<b</p>
```
Clearly we cannot have the best of both worlds, and this patch chooses
to swap the parsing strategy to support the new feature. Of course, `<`
can still be inserted as text via the `<` entity.
</li>
</ol>
Part of #38596
PR Close#38681
This commit re-enables some tests that were temporarily disabled on Windows,
as they failed on native Windows CI. The Windows filesystem emulation has
been corrected in an earlier commit, such that the original failure would
now also occur during emulation on Linux CI.
PR Close#37782
In native windows, the drive letter is a capital letter, while our Windows
filesystem emulation would use lowercase drive letters. This difference may
introduce tests to behave differently in native Windows versus emulated
Windows, potentially causing unexpected CI failures on Windows CI after a PR
has been merged.
Resolves FW-2267
PR Close#37782
NG_VALUE_ACCESSOR is a multi injection token, users can and
should expect more than one ControlValueAccessor to be
available (and this is how it is used in @angular/forms).
This is now reflected in the definition of the injection token
by typing it as an array of ControlValueAccessor. The motivating
reason is that using the programmatic Injector api will now
type Injector#get correspondingly.
fixes#29351
BREAKING CHANGES
NG_VALUE_ACCESSOR is now typed as a readonly array rather than
a mutable scalar. It is used as a multi injection token and as
such it should always be expected that more than one accessor
may be returned.
PR Close#29723
The logic for computing identifiers, specifically for bound attributes
can be simplified by using the value span of the binding rather than the
source span.
PR Close#38899
The current tests print out the span numbers, which are really difficult to verify
since it requires manually going to the template string and looking at what
characters appear within those indexes. The better humanization would be
to use the toString method of the spans, which prints the span text itself
PR Close#38902
Currently, when we call jsonp method without importing HttpClientJsonpModule, an error message appears saying
'Attempted to construct Jsonp request without JsonpClientModule installed.' instance of 'Attempted to
construct Jsonp request without HttpClientJsonpModule installed.'
PR Close#38756
This commit updates several import statements in the core package to decrease the number of
cycles detected by the dependency checker tool.
PR Close#38805
Close#38795
in the XMLHttpRequest patch, when get `readystatechange` event, zone.js try to
invoke `load` event listener first, then call `invokeTask` to finish the
`XMLHttpRequest::send` macroTask, but if the request failed because the
server can not be reached, the `load` event listener will not be invoked,
so the `invokeTask` of the `XMLHttpRequest::send` will not be triggered either,
so we will have a non finished macroTask there which will make the Zone
not stable, also memory leak.
So in this PR, if the `XMLHttpRequest.status = 0` when we get the `readystatechange`
event, that means something wents wrong before we reached the server, we need to
invoke the task to finish the macroTask.
PR Close#38836
In #38666 we changed how ngcc deals with type expressions, where it
would now always emit the original type expression into the generated
code as a "local" type value reference instead of synthesizing new
imports using an "imported" type value reference. This was done as a fix
to properly deal with renamed symbols, however it turns out that the
compiler has special handling for certain imported symbols, e.g.
`ChangeDetectorRef` from `@angular/core`. The "local" type value
reference prevented this special logic from being hit, resulting in
incorrect compilation of pipe factories.
This commit fixes the issue by manually inspecting the import of the
type expression, in order to return an "imported" type value reference.
By manually inspecting the import we continue to handle renamed symbols.
Fixes#38883
PR Close#38892
Common AST formats such as TS and Babel do not use a separate
node for comments, but instead attach comments to other AST nodes.
Previously this was worked around in TS by creating a `NotEmittedStatement`
AST node to attach the comment to. But Babel does not have this facility,
so it will not be a viable approach for the linker.
This commit refactors the output AST, to remove the `CommentStmt` and
`JSDocCommentStmt` nodes. Instead statements have a collection of
`leadingComments` that are rendered/attached to the final AST nodes
when being translated or printed.
PR Close#38811
Close#38561, #38669
zone.js 0.11.1 introduces a breaking change to adpat Angular package format,
and it breaks the module loading order, before 0.11, in IE11, the `zone.js` es5
format bundle will be imported, but after 0.11, the `fesm2015` format bundle will
be imported, which causes error.
And since the only purpose of the `dist` folder of zone.js bundles is to keep backward
compatibility, in the original commit, I use package redirect to implement that, but
it is not fully backward compatible, we should keep the same dist structure as `0.10.3`.
PR Close#38797
When the response type is JSON, the `put()` overload signature did not have `reportProgress`
and `params` options. This makes it difficult to type-check this overload.
This commit adds them to the overload signature.
Fixes#23600
PR Close#37873
This change prevents comments from a resolved node from appearing at
each location the resolved expression is used and also prevents callers
of `Scope#resolve` from accidentally modifying / adding comments to the
declaration site.
PR Close#38857
Before Zone.js `v0.11.1`, Zone.js provides two format of bundles under `dist` folder,
`ES5` bundle `zone.js` and `ES2015` bundle `zone-evergreen.js`, these bundles are used
for `differential loading` of Angular. By default, the following code
```
import 'zone.js';
```
loads the `ES5` bundle `zone.js`.
From `v0.11.1`, Zone.js follows the [Angular Package Format]
(https://docs.google.com/document/d/1CZC2rcpxffTDfRDs6p1cfbmKNLA6x5O-NtkJglDaBVs),
so the folder structure of the Zone.js bundles is updated to match `Angular Package Format`.
So the same code
```
import 'zone.js';
```
loads the `ES2015` bundle.
This is a breaking change, so if the apps import zone.js in this way,
the apps will not work in legacy browsers such as `IE11`.
Zone.js still provides the same bundles under `dist` folder to keep backward
compatibility after `v0.11.1`. So the following code in `polyfills.ts` generated
by `Angular CLI` still works.
```
import 'zone.js/dist/zone';
```
For details, please refer the [changelog](./CHANGELOG.md) and
the [PR](https://github.com/angular/angular/pull/36540).
PR Close#38821
In #38227 the signatures of `navigateByUrl` and `createUrlTree` were updated to exclude unsupported
properties from their `extras` parameter. This migration looks for the relevant method calls that
pass in an `extras` parameter and drops the unsupported properties.
**Before:**
```
this._router.navigateByUrl('/', {skipLocationChange: false, fragment: 'foo'});
```
**After:**
```
this._router.navigateByUrl('/', {
/* Removed unsupported properties by Angular migration: fragment. */
skipLocationChange: false
});
```
These changes also move the method call detection logic out of the `Renderer2` migration and into
a common place so that it can be reused in other migrations.
PR Close#38825
The `createOrReuseChildren` function calls shouldReuseRoute with the
previous child values use as the future and the future child value used
as the current argument. This is incosistent with the argument order in
`createNode`. This inconsistent order can make it difficult/impossible
to correctly implement the `shouldReuseRoute` function. Usually this
order doesn't matter because simple equality checks are made on the
args and it doesn't matter which is which.
More detail can be found in the bug report: #16192.
Fix#16192
BREAKING CHANGE: This change corrects the argument order when calling
RouteReuseStrategy#shouldReuseRoute. Previously, when evaluating child
routes, they would be called with the future and current arguments would
be swapped. If your RouteReuseStrategy relies specifically on only the future
or current snapshot state, you may need to update the shouldReuseRoute
implementation's use of "future" and "current" ActivateRouteSnapshots.
PR Close#26949
In the integration test suite of ngcc, we load a set of files from
`node_modules` into memory. This includes the `typescript` package and
`@angular` scoped packages, which account for a large number of large
files that needs to be loaded from disk. This commit moves this work
to the top-level, such that it doesn't have to be repeated in all tests.
PR Close#38840
Recent optimizations to ngcc have significantly reduced the total time
it takes to process `node_modules`, to such extend that sharding across
multiple processes has become less effective. Previously, running
ngcc asynchronously would allow for up to 8 workers to be allocated,
however these workers have to repeat work that could otherwise be shared.
Because ngcc is now able to reuse more shared computations, the overhead
of multiple workers is increased and therefore becomes less effective.
As an additional benefit, having fewer workers requires less memory and
less startup time.
To give an idea, using the following test setup:
```bash
npx @angular/cli new perf-test
cd perf-test
yarn ng add @angular/material
./node_modules/.bin/ngcc --properties es2015 module main \
--first-only --create-ivy-entry-points
```
We observe the following figures on CI:
| | 10.1.1 | PR #38840 |
| ----------------- | --------- | --------- |
| Sync | 85s | 25s |
| Async (8 workers) | 22s | 16s |
| Async (4 workers) | - | 11s |
In addition to changing the default number of workers, ngcc will now
use the environment variable `NGCC_MAX_WORKERS` that may be configured
to either reduce or increase the number of workers.
PR Close#38840
ngcc creates typically two `ts.Program` instances for each entry-point,
one for processing sources and another one for processing the typings.
The creation of these programs is somewhat expensive, as it concerns
module resolution and parsing of source files.
This commit implements several layers of caching to optimize the
creation of programs:
1. A shared module resolution cache across all entry-points within a
single invocation of ngcc. Both the sources and typings program
benefit from this cache.
2. Sharing the parsed `ts.SourceFile` for a single entry-point between
the sources and typings program.
3. Sharing parsed `ts.SourceFile`s of TypeScript's default libraries
across all entry-points within a single invocation. Some of these
default library typings are large and therefore expensive to parse,
so sharing the parsed source files across all entry-points offers
a significant performance improvement.
Using a bare CLI app created using `ng new` + `ng add @angular/material`,
the above changes offer a 3-4x improvement in ngcc's processing time
when running synchronously and ~2x improvement for asynchronous runs.
PR Close#38840
When type-checking a component, the declaring NgModule scope is used
to create a directive matcher that contains flattened directive metadata,
i.e. the metadata of a directive and its base classes. This computation
is done for all components, whereas the type-check scope is constant per
NgModule. Additionally, the flattening of metadata is constant per
directive instance so doesn't necessarily have to be recomputed for
each component.
This commit introduces a `TypeCheckScopes` class that is responsible
for flattening directives and computing the scope per NgModule. It
caches the computed results as appropriate to avoid repeated computation.
PR Close#38539
For the compilation of a component, the compiler has to prepare some
information about the directives and pipes that are used in the template.
This information includes an expression for directives/pipes, for usage
within the compilation output. For large NgModule compilation scopes
this has shown to introduce a performance hotspot, as the generation of
expressions is quite expensive. This commit reduces the performance
overhead by only generating expressions for the directives/pipes that
are actually used within the template, significantly cutting down on
the compiler's resolve phase.
PR Close#38539
This commit creates a sample router test application to introduce the
symbol tests. It serves as a guard to ensure that any future work on the
router package does not unintentionally increase the payload size.
PR Close#38714
Recent work on compiler internals in #38539 led to an unexpected failure,
where a pipe used exclusively inside of an ICU would no longer be
emitted into the compilation output. This caused runtime errors due to
missing pipes.
The issue occurred because the change in #38539 would determine the set
of used pipes up-front, independent from the template compilation using
the `R3TargetBinder`. However, `R3TargetBinder` did not consider
expressions within ICUs, so any pipe usages within those expressions
would not be detected. This fix unblocks #38539 and also concerns
upcoming linker work, given that prelink compilations would not go
through full template compilation but only `R3TargetBinder`.
PR Close#38810
Close#38584
In zone.js 0.11.1, the `types` field is missing in the `package.json`,
the reason is in zone.js 0.11.0, the `files` field is used to specify the
types, but it cause the npm package not contain any bundles issue, so zone.js
0.11.1 remove the `files` field, which cause the `type` definition gone.
This PR concat the `zone.js.d.ts`, `zone.configurations.api.ts`, `zone.api.extensions.ts`
types into a single `zone.d.ts` file.
PR Close#38585
To discourage developers from mutating the arrays returned
from the following methods, their return types have been marked
as readonly.
* `getLocaleDayPeriods()`
* `getLocaleDayNames()`
* `getLocaleMonthNames()`
* `getLocaleEraNames()`
Fixes#27003
BREAKING CHANGE:
The locale data API has been marked as returning readonly arrays, rather
than mutable arrays, since these arrays are shared across calls to the
API. If you were mutating them (e.g. calling `sort()`, `push()`, `splice()`, etc)
then your code will not longer compile. If you need to mutate the array, you
should now take a copy (e.g. by calling `slice()`) and mutate the copy.
PR Close#30397
In a microsyntax expressions, some attributes are not bound after
desugaring. For example,
```html
<div *ngFor="let item of items">
</div>
```
gets desugared to
```html
<ng-template ngFor let-items [ngForOf]="items">
</ngtemplate>
```
In this case, `ngFor` should be a literal attribute with no RHS value.
Therefore, its source span should be just the `keySpan` and not the
source span of the original template node.
This allows language service to precisely pinpoint different spans in a
microsyntax to provide accurate information.
PR Close#38766
Adds `TemplateTypeChecker` operation to retrieve the `Symbol` of a
`TmplAstVariable` or `TmplAstReference` in a template.
Sometimes we need to traverse an intermediate variable declaration to arrive at
the correct `ts.Symbol`. For example, loop variables are declared using an intermediate:
```
<div *ngFor="let user of users">
{{user.name}}
</div>
```
Getting the symbol of user here (from the expression) is tricky, because the TCB looks like:
```
var _t0 = ...; // type of NgForOf
var _t1: any; // context of embedded view for NgForOf structural directive
if (NgForOf.ngTemplateContextGuard(_t0, _t1)) {
// _t1 is now NgForOfContext<...>
var _t2 = _t1.$implicit; // let user = '$implicit'
_t2.name; // user.name expression
}
```
Just getting the `ts.Expression` for the `AST` node `PropRead(ImplicitReceiver, 'user')`
via the sourcemaps will yield the `_t2` expression. This function recognizes that `_t2`
is a variable declared locally in the TCB, and actually fetch the `ts.Symbol` of its initializer.
These special handlings show the versatility of the `Symbol`
interface defined in the API. With this, when we encounter a template variable,
we can provide the declaration node, as well as specific information
about the variable instance, such as the `ts.Type` and `ts.Symbol`.
PR Close#38618
Adds support to the `TemplateTypeChecker` to get a `Symbol` of an AST
expression in a component template.
Not all expressions will have `ts.Symbol`s (e.g. there is no `ts.Symbol`
associated with the expression `a + b`, but there are for both the a and b
nodes individually).
PR Close#38618
Adds support to the `TemplateTypeChecker` for retrieving a `Symbol` for
`TmplAstTemplate` and `TmplAstElement` nodes in a component template.
PR Close#38618
Specifically, this commit adds support for retrieving a `Symbol` from a
`TmplAstBoundEvent` or `TmplAstBoundAttribute`. Other template nodes
will be supported in following commits.
PR Close#38618
The statements generated in the TCB are optimized for performance and producing diagnostics.
These optimizations can result in generating a TCB that does not have all the information
needed by the `TemplateTypeChecker` for retrieving `Symbol`s. For example, as an optimization,
the TCB will not generate variable declaration statements for directives that have no
references, inputs, or outputs. However, the `TemplateTypeChecker` always needs these
statements to be present in order to provide `ts.Symbol`s and `ts.Type`s for the directives.
This commit adds logic to the TCB generation to ensure the required
information is available in a form that the `TemplateTypeChecker` can
consume. It also adds an option to the `NgCompiler` that makes this
generation configurable.
PR Close#38618
This commit defines the interfaces which outline the information the
`TemplateTypeChecker` can return when requesting a Symbol for an item in the
`TemplateAst`.
Rather than providing the `ts.Symbol`, `ts.Type`, etc.
information in several separate functions, the `TemplateTypeChecker` can
instead provide all the useful information it knows about a particular
node in the `TemplateAst` and allow the callers to determine what to do
with it.
PR Close#38618
Currently, the `DatePipe` (via `formatDate()`) rounds fractions of a millisecond to the
nearest millisecond. This can cause dates that are less than a millisecond before midnight
to be incremented to the following day.
The [ECMAScript specification](https://www.ecma-international.org/ecma-262/5.1/#sec-15.9.1.11)
defines that `DateTime` milliseconds should always be rounded down, so that `999.9ms`
becomes `999ms`.
This change brings `formatDate()` and so `DatePipe` inline with the ECMAScript
specification.
Fixes#37989
BREAKING CHANGE:
When passing a date-time formatted string to the `DatePipe` in a format that contains
fractions of a millisecond, the milliseconds will now always be rounded down rather than
to the nearest millisecond.
Most applications will not be affected by this change. If this is not the desired behaviour
then consider pre-processing the string to round the millisecond part before passing
it to the `DatePipe`.
PR Close#38009
Some lower level APIs are used by CLI, and requiring
the `formatOpions` argument at that level is a
breaking change. This commit makes it optional
at every level to avoid the breaking change.
PR Close#38787
The `RefreshTransplantedView` flag is used to indicate that the view or one of its children
is transplanted and dirty, so it should still be refreshed as part of change detection.
This flag is set on the transplanted view itself as well setting a
counter on as its parents.
When a transplanted view is detached and still has this flag, it means
it got detached before it was refreshed. This can happen for "backwards
references" or transplanted views that are inserted at a location that
was already checked. In this case, we should decrement the parent
counters _and_ clear the flag on the detached view so it's not seen as
"transplanted" anymore (it is detached and has no parent counters to
adjust).
fixes#38619
PR Close#38768
This commit adds `ngDevMode` guard to throw some errors only in dev mode
The ngDevMode flag helps to tree-shake these error messages from production
builds (in dev mode everything will work as it works right now) to decrease
production bundle size.
PR Close#38674
This change contains the test from #38780 and also removes `defer` from
the `apply_redirects` logic because the change that introduced
`concatMap` instead of `map`...`concatAll` makes `defer` unnecessary.
PR Close#38781
This commit improves the error thrown by the downgrade module with a more
descriptive message on why the downgrade is failing.
Closes#37579
PR Close#38671
In the test project there are no longer reference markers and location
markers, so there's no need to "pre-process" the source files to remove
them. This will make the Ivy tests cleaner and faster.
PR Close#38777
When type-checking a component, the declaring NgModule scope is used
to create a directive matcher that contains flattened directive metadata,
i.e. the metadata of a directive and its base classes. This computation
is done for all components, whereas the type-check scope is constant per
NgModule. Additionally, the flattening of metadata is constant per
directive instance so doesn't necessarily have to be recomputed for
each component.
This commit introduces a `TypeCheckScopes` class that is responsible
for flattening directives and computing the scope per NgModule. It
caches the computed results as appropriate to avoid repeated computation.
PR Close#38539
For the compilation of a component, the compiler has to prepare some
information about the directives and pipes that are used in the template.
This information includes an expression for directives/pipes, for usage
within the compilation output. For large NgModule compilation scopes
this has shown to introduce a performance hotspot, as the generation of
expressions is quite expensive. This commit reduces the performance
overhead by only generating expressions for the directives/pipes that
are actually used within the template, significantly cutting down on
the compiler's resolve phase.
PR Close#38539
Whitespace can be relevant in extracted XLIFF translation files.
Some i18n tools - e.g. CAT tool (OmegaT) - will reformat
the file to collapse whitespace if there is no indication to tell it
not to.
This commit adds the ability to specify "format options" that are passed
to the translation file serializer. The XLIFF 1.2 and 2.0 seralizers have
been updated to accept `{"xml:space":"preserve"}` format option which will
by added to the `<file>` element in the serialized translation file during
extraction.
Fixes#38679
PR Close#38737
In most browsers, clicking links with the Alt key has a special behavior, for example, Chrome
downloads the target resource. As with other modifier keys, the router should stop the original
navigation to avoid preventing the browser’s default behavior.
When users click a link while holding the Alt key together, the browsers behave as follows.
Windows 10:
| Browser | Behavior |
|:-----------|:--------------------------------------------|
| Chrome 84 | Download the target resource |
| Firefox 79 | Prevent navigation and therefore do nothing |
| Edge 84 | Download the target resource |
| IE 11 | No impact |
macOS Catalina:
| Browser | Behavior |
|:-----------|:--------------------------------------------|
| Chrome 84 | Download the target resource |
| Firefox 79 | Prevent navigation and therefore do nothing |
| Safari 13 | Download the target resource |
PR Close#38375
The type-to-value conversion could previously crash if a symbol was
resolved that does not have any declarations, e.g. because it's imported
from a missing module. This would typically result in a semantic
TypeScript diagnostic and halt further compilation, therefore not
reaching the type-to-value conversion logic. In Bazel however, it turns
out that Angular semantic diagnostics are requested even if there are
semantic TypeScript errors in the program, so it would then reach the
type-to-value conversation and crash.
This commit fixes the unsafe access and adds a test that ignores the
TypeScript semantic error, effectively replicating the situation as
experienced under Bazel.
Fixes#38670
PR Close#38684
Previously, localized strings had very limited or incorrect source-mapping
information available.
Now the i18n AST nodes and related output AST nodes include source-span
information about message-parts and placeholders - including closing tag
placeholders.
This information is then used when generating the final localized string
ASTs to ensure that the correct source-mapping is rendered.
See #38588 (comment)
PR Close#38645
The `MessagePiece` and derived classes, `LiteralPiece` and `PlaceholderPiece`
need to be referenced in the `LocalizedString` output AST class, so that we
can render the source-spans of each piece.
PR Close#38645
The `TagPlaceholder` can contain children, in which case there are two source
spans of interest: the opening tag and the closing tag. This commit now allows
the closing tag source-span to be tracked, so that it can be used later in
source-mapping.
PR Close#38645
The expression parser will split the expression up at the interpolation markers
into expressions and static strings. This commit also captures the positions of
these strings in the expression to be used in source-mapping later.
PR Close#38645
Since the `defineProperty` not swallow error any longer, now the tests compile
source code in `commonjs` mode, and the code generated includes the code like this
```
Object.defineProperty(exports, "__esModule", {value: true});
```
And the `exports` is undefined in some browsers, but the error is swallowed before
this PR, and all tests run successfully, but it is not correct behavior. After this PR,
the code above failed. So we need to compile the source code in `umd` mode.
PR Close#37582
Close#37432
zone.js monkey patches the `Object.defineProperty` API long time ago
angular/zone.js@383b479
to resolve issues in very old version of Chrome web which override the
property of `CustomElements`, and this is not an issue any longer, so
we want to remove this monkey patch, since it may swallow the errors when the user
want to define property on unconfigurable or frozen object properties.
But currently there are several apps and tests depends on this patch, since
it also change the `configurable` property to `true` by default, so
in this PR we update the logic to not to swallow error any longer unless the property
is the callbacks of `document.registerElements`.
BREAKING CHANGE:
ZoneJS no longer swallows errors produced by `Object.defineProperty` calls.
Prior to this change, ZoneJS monkey patched `Object.defineProperty` and if there is an error
(such as the property is not configurable or not writable) the patched logic swallowed it
and only console.log was produced. This behavior used to hide real errors,
so the logic is now updated to trigger original errors (if any). One exception
where the patch remains in place is `document.registerElement`
(to allow smooth transition for code/polyfills that rely on old behavior in legacy browsers).
If your code relies on the old behavior (where errors were not thrown before),
you may need to update the logic to handle the errors that are no longer masked by ZoneJS patch.
PR Close#37582
Previously this interface was mostly stored in compiler-cli, but it
contains some properties that would be useful for compiling the
"declare component" prelink code.
This commit moves some of the interface over to the compiler
package so that it can be referenced there without creating a
circular dependency between the compiler and compiler-cli.
PR Close#38594
The `R3TargetBinder` accepts an interface for directive metadata which
declares types for `input` and `output` objects. These types convey the
mapping between the property names for an input or output and the
corresponding property name on the component class. Due to
`R3TargetBinder`'s requirements, this mapping was specified with property
names as keys and field names as values.
However, because of duck typing, this interface was accidentally satisifed
by the opposite mapping, of field names to property names, that was produced
in other parts of the compiler. This form more naturally represents the data
model for inputs.
Rather than accept the field -> property mapping and invert it, this commit
introduces a new abstraction for such mappings which is bidirectional,
eliminating the ambiguous plain object type. This mapping uses new,
unambiguous terminology ("class property name" and "binding property name")
and can be used to satisfy both the needs of the binder as well as those of
the template type-checker (field -> property).
A new test ensures that the input/output metadata produced by the compiler
during analysis is directly compatible with the binder via this unambiguous
new interface.
PR Close#38685
This commit adds `ngDevMode` guard to throw some errors only in dev mode
(similar to how things work in other parts of Ivy runtime code). The
`ngDevMode` flag helps to tree-shake these error messages from production
builds (in dev mode everything will work as it works right now) to decrease
production bundle size.
PR Close#38612
If a type has been renamed when it was exported, we need to
reference the external public alias name rather than the internal
original name for the type. Otherwise we will try to import the
type by its internal name, which is not publicly accessible.
Fixes#38238
PR Close#38666
A recent change to `@angular/localize` brought in the `AbsoluteFsPath` type
from the `@angular/compiler-cli`. But this brought along with it a reference
to NodeJS typings - specifically the `FileSystem` interface refers to the
`Buffer` type from NodeJS.
This affects compilation of `@angular/localize` code that will be run in
the browser - for example projects that reference `loadTranslations()`.
The compilation breaks if the NodeJS typings are not included in the build.
Clearly it is not desirable to have these typings included when the project
is not targeting NodeJS.
This commit replaces references to the NodeJS `Buffer` type with `Uint8Array`,
which is available across all platforms and is actually the super-class of
`Buffer`.
Fixes#38692
PR Close#38700
Previously, the location of a translation message, in XLIFF 2, was only
rendered if there were also notes for meaning or description. Now the
location will be rendered even if the other metadata is not provided.
Fixes#38705
PR Close#38713
In general, the router only matches and loads a single Route config tree. However,
named outlets with empty paths are a special case where the router can
and should actually match two different `Route`s and ensure that the
modules are loaded for each match.
This change updates the "ApplyRedirects" stage to ensure that named
outlets with empty paths finish loading their configs before proceeding
to the next stage in the routing pipe. This is necessary because if the
named outlet has `loadChildren` but the associated lazy config is not loaded
before following stages attempt to match and activate relevant `Route`s,
an error will occur.
fixes#12842
PR Close#38379
Previously, the compiler was not able to display template parsing errors as
true `ts.Diagnostic`s that point inside the template. Instead, it would
throw an actual `Error`, and "crash" with a stack trace containing the
template errors.
Not only is this a poor user experience, but it causes the Language Service
to also crash as the user is editing a template (in actuality the LS has to
work around this bug).
With this commit, such parsing errors are converted to true template
diagnostics with appropriate span information to be displayed contextually
along with all other diagnostics. This majorly improves the user experience
and unblocks the Language Service from having to deal with the compiler
"crashing" to report errors.
PR Close#38576
The template type-checking engine includes utilities for creating
`ts.Diagnostic`s for component templates. Previously only the template type-
checker itself created such diagnostics. However, the template parser also
produces errors which should be represented as template diagnostics.
This commit prepares for that conversion by extracting the machinery for
producing template diagnostics into its own sub-package, so that other parts
of the compiler can depend on it without depending on the entire template
type-checker.
PR Close#38576
`tView` that is stored on a component def contains information about directives and pipes
that are available in the scope of this component. Patching component scope causes `tView` to be
updated. Prior to this commit, the `tView` information was not restored/reset in case component
class is not declared in the `declarations` field while calling `TestBed.configureTestingModule`,
thus causing `tView` to be reused between tests (thus preserving scopes information between tests).
This commit updates TestBed logic to preserve `tView` value before applying scope changes and
reset it back to the previous state between tests.
Closes#38600.
PR Close#38659
Previously this package was installed in the default `dependencies` section
of `package.json`, but this meant that its own dependencies are treated as
dependencies of the main project: Babel, for example.
Generally, $localize` is not used at runtime - it is compiled out by the
translation tooling, so there is no need for it to be a full dependency.
In fact, even if it is used at runtime, the package itself is only used
at dev-time since the runtime bits will be bundled into a distributable.
So putting this package in `devDependencies` would only prevent libraries
from bringing the package into application projects that used them. This
is probably good in itself, since it should be up to the downstream project
to decide if it wants to include `@angular/localize` at runtime.
This commit changes the default location of the package to be the
`devDependencies` section, but gives an option `useAtRuntime` to choose
otherwise.
Fixes#38329
PR Close#38680
Remove CollectionChangeRecord as it was deprecated for removal in v4, use
IterableChangeRecord instead.
BREAKING CHANGE: CollectionChangeRecord has been removed, use IterableChangeRecord
instead
PR Close#38668
Previously, the `sourceSpan` and `startSourceSpan` were the same
object, which meant that you had the following situation:
```
element = <div>some content</div>
sourceSpan = <div>
startSourceSpan = <div>
endSourceSpan = </div>
```
This made `sourceSpan` redundant and meant that if you
wanted a span for the whole element including its content
and closing tag, it had to be computed.
Now `sourceSpan` is separated from `startSourceSpan`
resulting in:
```
element = <div>some content</div>
sourceSpan = <div>some content</div>
startSourceSpan = <div>
endSourceSpan = </div>
```
PR Close#38581
Previously, the `startSourceSpan` property could be null
but in reality it is always well defined - except for a legacy
case in the old i18n extraction/merging code, where the
typings for source-spans are already being undermined.
Making this property non-null, simplifies code elsewhere
in the project.
PR Close#38581
Previously the lexer was responsible for deciding whether an "inline"
template should also have its line-endings normalized.
Now this decision is made higher up in the call stack to allow more
flexibility in the parser/lexer.
PR Close#38581
Previously the position of the error in a translation file when parsing
it was not displayed. Just the error message.
Now the position (line and column) and some context is displayed
along with the error messages.
Fixes#38377
PR Close#38673
This commit ensures that the `updateValueAndValidity` method takes the
`asyncValidator` into consideration to emit on the `statusChanges` observables.
This is necessary so that any subsequent changes are emitted properly to any
subscribers.
Closes#20424Closes#14542
BREAKING CHANGE:
Previously if FormControl, FormGroup and FormArray class instances had async validators
defined at initialization time, the status change event was not emitted once async validator
completed. After this change the status event is emitted into the `statusChanges` observable.
If your code relies on the old behavior, you can filter/ignore this additional status change
event.
PR Close#38354
The HTML parser gets an element's namespace either from the tag name
(e.g. `<svg:rect>`) or from its parent element `<svg><rect></svg>`) which
breaks down when an element is inside of an SVG `foreignElement`,
because foreign elements allow nodes from a different namespace to be
inserted into an SVG.
These changes add another flag to the tag definitions which tells child
nodes whether to try to inherit their namespaces from their parents.
It also adds a definition for `foreignObject` with the new flag,
allowing elements placed inside it to infer their namespaces instead.
Fixes#37218.
PR Close#38477
In several occasions it has been observed when the browser has evicted
eagerly cached assets from the cache and which can also not be found on the
server anymore. This can lead to broken state where only parts of the application
will load and others will fail.
This commit fixes this issue by checking for the missing asset in the cache
and on the server. If this condition is true, the broken client will be
notified about the current state through the `UnrecoverableStateError`.
Closes#36539
PR Close#36847
Previously, the condition to make the cache busted was executing although
the network request was successful. However, this is not valid. The cache
should only be marked as busted when the request failed. This commit fixes
the invalid condition.
PR Close#36847
Joey Perrott
Andrew Scott
Adrian Rutkowski
klemenoslaj
Pete Bacon Darwin
Ayaz Hafiz
JoostK
Ingo Bürk
Prashant Tholia
Marley Powell
William Koza
Andrew Kushnir
JiaLiPassion
Sonu Kapoor
Ajit Singh
Oscar Rosner
pmartijena
Kristiyan Kostadinov
Mathieu Lemoine
Artem Halas
Keen Yee Liau
gilboom
Popov Max
Yuhei Yasuda
Alex Rickabaugh
Andrew Scott
Wassim Chegham