In View Engine, we used to generate empty QueryLists for content queries on root
components (though we did not actually support populating these lists). We need
to keep this behavior in Ivy for backwards compatibility. Otherwise, components
that are sometimes used as root will fail if they are relying on content query
results to always be defined.
PR Close#29514
In some cases ivy expects projectable nodes to be passed in a different order
to ViewEngine. Specifically, ivy expects the catch-all ("*") to be at index
0, whereas ViewEngine expects it to be at its position at which it was parsed
in the template.
This commit adds one test that breaks under ivy and others that just describe
more accurately what happens in corner cases.
PR Close#27791
ivy's bindingUpdated instruction is using the assertNotEqual check to make
sure that NO_CHANGE value (of type Object) is not passed as a value to be
dirty-checked. In practice it means that any value passed as a binding
value would be compared to the NO_CHANGE object.
It turns out that the assertNotEqual is using == and given
that binding values are of different type and we always compare it to the
NO_CHANGE object we were doing lots of type coercion. It resulted in calls
to expensive types conversions and calls to Object.toString().
A profiler reported ~15% of the self time spent in the assertNotEqual
but it turns out that removing type coercion speeds up Material Chips with
input scenario much more (~40ms down to ~20ms).
This PR introduces new assert method `assertNotSame` that uses strict equality
check. The new assertion is used in binding instructions to compare to
NO_CHANGE object reference.
PR Close#29470
Queries can be also used statically within the "ngDoCheck" and "ngOnChanges" lifecylce hook.
In order to properly detect all queries, we need to also respect these lifecycle hooks.
Resolves FW-1192
PR Close#29492
In ReflectionCapabilities, when checking for own parameters of a type, inherit the types properly for classes that do have a constructor, but the constructor takes no declared parameters and just delegates to super(...arguments). This removes the need to declare trivial constructors in such classes to make them work properly in JIT mode. Without this, DI fails and injectables are undefined.
PR Close#29232
This fix corrects a bug where we were passing a binding _value_
in place of an expected binding index. This reulted in the binding
value being compared to an array length and buggy type coercion.
Fixing this bug speeds up test scenario by ~10-15%.
PR Close#29476
Previously, only directives and services with generic type parameters
would emit `any` as generic type when emitting Ivy metadata into .d.ts
files. Pipes can also have generic type parameters but did not emit
`any` for all type parameters, resulting in the omission of those
parameters which causes compilation errors.
This commit adds support for pipes with generic type arguments and emits
`any` as generic type in the Ivy metadata.
Fixes#29400
PR Close#29403
Previously, the transitive scope calculation could lead into re-compiling
the same module multiple times. This fix ensures we cannot get into this loop.
It should be fixed more completely (e.g. more cases) once FW-1178 is resolved.
PR Close#29402
This patch is the first of a few patches which separates the
styling logic between template bindings (e.g. <div [style])
from host bindings (e.g. @HostBinding('style')). This patch
in particular introduces a series of host-specific styling
instructions and changes the existing set of template styling
instructions not to accept directives. The underyling code (which
communicates with the styling algorithm) still works as it did
before.
This PR also separates the styling instruction code into a separate
file and moves over all other instructions into an dedicated
instructions directory.
PR Close#29292
Prior to this change, we always recompile all Components/Directives/Pipes even if they were AOT-compiled and had no overrides. This is causing problems in case we try to recompile a Component with "templateUrl" or "styleUrls" (which were already resolved in case of AOT) and generally this unnecessary work that TestBed was doing is not required. This commit adds extra logic to check whether a Component/Directive/Pipe already have compiled NG def (like ngComponentDef) and whether there are no overrides present - in this case recompilation is skipped. Recompilation is also skipped in case a Component/Directive has only Provider overrides - in this situation providers resolver function is patched to reflect overrides. Provider overrides are very common in g3, thus this code path ensures no full recompilation.
PR Close#29294
Fixes the incorrect failure message or the TSLint rule that
is used within Google. The TSLint rule is not part of the
public schematic code.
Additionally in order to make it easier to understand what
action the developer needs to take, we rather print out the
expected "static: true/false" statement instead of saying that
a query needs to be static or dynamic. Dynamic is ambiguous, as
there is no `dynamic: true` option.
PR Close#29320
Just updating comments in query-related things to make it easier for the next person that has to grok this for the first time.
Also adds a demo from @mhevery to one of the query specs
Related #29031
PR Close#29342
Just updating comments in query-related things to make it easier for the next person that has to grok this for the first time.
Also adds a demo from @mhevery to one of the query specs
Related #29031
PR Close#29342
Fixes host listeners being inherited twice, if the sub class has its own `propMetadata`. This is related to #29170 which fixed something similar, however all of the test cases there had a super class with some metadata and a sub class that didn't have any. The issue manifested itself in the `MatTreeToggle` which inherits a listener from the `CdkTreeToggle` and adds an extra `Input` of its own, causing the listener to be added twice.
PR Close#29353
- Remove an extra type `ViewOrElement`, which even had the same numeric value as `View`.
- Updates comment to remove part about alleged bit-masking that we could be doing here.
We aren't using this with bitmasks, and if we were, everything would be a `NodeType.Container`,
because it's value was `0`.
- Updates the number values to be simple, human-readable integers, since we're not using these
with any kind of bit-manipulation.
- Add comments about each type.
PR Close#29343
HACK: This is NOT the correct implementation for deprecatedOverrideProvider.
We do not plan to implement this at all since the API is deprecated and
scheduled for removal in V8. This hack is here temporarily for Ivy testing
until we transition apps inside Google to the overrideProvider API. At that
point, we will be able to remove this method entirely. In the meantime, we
can use overrideProvider here to test apps with Ivy that don't care about
eager instantiation. This fixes 97% of cases in our blueprint.
PR Close#29324
Angular Ivy interprets inline static style/class attribute values as instructions that
are processed whilst an element gets created. Because these inline style values are
referenced by style/class bindings, their inline style values are applied at a later
stage. Despite them being eventually applied, their values should be applied earlier
before any directives are instantiated so that directive code can rely on any inline
style/class changes.
This patch ensures that all static style/class attribute values are applied (rendered)
on the element before directives are instantiated.
Jira Issue: FW-1133
PR Close#29269
Following my previous change for placeholders removal, some special code that was used to find the last created node was no longer needed and had wrong interactions with the *ngFor directive.
Removing it fixed the issue.
PR Close#29308
Improves the failure message for the `explicit-query` timing TSLint rule
that is used within Google. Currently it's not very clear what action
developers need to take in order to resolve the lint failure manually.
PR Close#29258
In order to be able to use the static-query migration logic within
Google, we need to provide a TSLint rule entry-point that wires up
the schematic logic and provides reporting and automatic fixes.
PR Close#29258
When injecting with `@Attribute`, namespaced attributes should not match (in order to have feature parity with View Engine).
This PR resolves FW-1137
PR Close#29257
BREAKING CHANGE:
Certain elements (like `<tr>` or `<col>`) require parent elements to be of a certain type by the HTML specification
(ex. <tr> can only be inside <tbody> / <thead>). Before this change Angular template parser was auto-correcting
"invalid" HTML using the following rules:
- `<tr>` would be wrapped in `<tbody>` if not inside `<tbody>`, `<tfoot>` or `<thead>`;
- `<col>` would be wrapped in `<colgroup>` if not inside `<colgroup>`.
This meachanism of automatic wrapping / auto-correcting was problematic for several reasons:
- it is non-obvious and arbitrary (ex. there are more HTML elements that has rules for parent type);
- it is incorrect for cases where `<tr>` / `<col>` are at the root of a component's content, ex.:
```html
<projecting-tr-inside-tbody>
<tr>...</tr>
</projecting-tr-inside-tbody>
```
In the above example the `<projecting-tr-inside-tbody>` component culd be "surprised" to see additional
`<tbody>` elements inserted by Angular HTML parser.
PR Close#29219
Previously, ngtsc would resolve forward references while evaluating the
bootstrap, declaration, imports, and exports fields of NgModule types.
However, when generating the resulting ngModuleDef, the forward nature of
these references was not taken into consideration, and so the generated JS
code would incorrectly reference types not yet declared.
This commit fixes this issue by introducing function closures in the
NgModuleDef type, similarly to how NgComponentDef uses them for forward
declarations of its directives and pipes arrays. ngtsc will then generate
closures when required, and the runtime will unwrap them if present.
PR Close#29198
Prior to this change default selector for Components was not applied in case selector is missing or defined as an empty string. This update aligns this behavior between Ivy and VE: now default selector is used for Components when it's needed. Directives with empty selector are not allowed and trigger a compile-time error in both Ivy and VE.
PR Close#29239
With 6215799, we introduced a schematic for the new static-query timing.
Currently when someone runs the update schematic manually within his
CLI project (the schematic does not run automatically yet), he might have
noticed that the migration is executed for the same `tsconfig` file multiple
times. This can happen because the `getProjectTsConfigPaths` function
can incorrectly return the same tsconfig multiple times. The paths are not
properly deduped as we don't normalize the determined project tsconfig paths
PR Close#29133
Currently the static-query migration does not properly handle functions which
are declared externally. This is because we don't resolve the symbol of the
call-expression through its type. Currently we just determine the symbol of the
call-expression through the given call expression node, which doesn't necessarily
refer to the *value declaration* of the call expression. e.g. the symbol refers to the
import declaration which imports the external function. This means that we currently
can't check the external function as we couldn't find the actual value declaration.
We can fix this by resolving the type of the call expression and using the type in order
to retrieve the symbol containing the *value declaration*
PR Close#29133
Currently when the static-query runs for a project with multiple TypeScript
configuration files (e.g. a usual CLI project), the migration incorrectly
applies the code transformation multiple times. This is because the migration
is currently based on the source file contents in the file system, while the
actual source file contents could have already changed in the devkit schematic
tree.
PR Close#29133
With 6215799055, we introduced a schematic
for the Angular core package that automatically migrates unexplicit
query definitions to the explicit query timing (static <-> dynamic).
As the initial foundation was already big enough, it was planned
to come up with a follow-up that handles asynchronous query
usages properly. e.g. queries could be used in Promises,
`setTimeout`, `setInterval`, `requestAnimationFrame` and more, but
the schematic would incorrectly declare these queries as static.
This commit ensures that we properly handle these micro/macro
tasks and don't incorrectly consider queries as static.
The declaration usage visitor should only check the synchronous
control flow and completely ignore any statements within function
like expressions which aren't explicitly executed in a synchronous
way. e.g. IIFE's still work as the function expression is
synchronously invoked.
PR Close#29133
Currently with ViewEngine, if someone runs the platform's
`bootstrapModule` method in order to boostrap a module in
JIT mode, external component resources are properly resolved
*automatically*.
Currently with Ivy, the developer would need to manually call
`resolveComponentResources` in order to asynchronously fetch
the determined external component resources. In order to make
this backwards compatible with ViewEngine, and also since
platforms can already specify a `ResourceLoader` compiler
provider, we need to automatically resolve all external
component resources on module bootstrap.
--
Since the `ResourceLoader` is part of the `@angular/compiler`,
because ViewEngine performed the factory creation in the compiler,
we can't access the `ResourceLoader` token from within core.
In order to workaround this without introducing a breaking change,
we just proxy the `ResourceLoader` token to `core` through the
compiler facade. In the future, we should be able to move the
`ResourceLoader` to core when ViewEngine code no longer exists in
the `@angular/compiler`.
PR Close#29083
Dynamic nodes are created at the end of the view stack, but we were removing all the placeholders between `i18nStart` and the last created node index, instead of removing everything between `i18nStart` and `i18nEnd`. This caused errors when dynamic nodes where created in multiple i18n blocks because we would remove all of the dynamic nodes created in the previous i18n blocks.
PR Close#29252
`ng_module` will now include an `src/r3_symbol.d.ts` when compiling the core package under `ngc` togather with `dts bundling`, This is due that `ngcc` relies on this file to be present, but the `r3_symbols` file which is not part of our public api.
With this change, we can now ship an addition dts file which is flattened.
PR Close#28884
Prior to this commit, i18n instructions (i18n, i18nStart) were generated before listener instructions. As a result, event listeners were attached to the wrong element (text node, not the parent element). This change updates the order of instructions and puts i18n ones after listeners, to make sure listeners are attached to the right elements.
PR Close#29173
The content projection mechanism is static, in that it only looks at the static
template nodes before directives are matched and change detection is run.
When you have a selector-based content projection the selection is based
on nodes that are available in the template.
For example:
```
<ng-content selector="[some-attr]"></ng-content>
```
would match
```
<div some-attr="..."></div>
```
If you have an inline-template in your projected nodes. For example:
```
<div *ngIf="..." some-attr="..."></div>
```
This gets pre-parsed and converted to a canonical form.
For example:
```
<ng-template [ngIf]="...">
<div some-attr=".."></div>
</ng-template>
```
Note that only structural attributes (e.g. `*ngIf`) stay with the `<ng-template>`
node. The other attributes move to the contained element inside the template.
When this happens in ivy, the ng-template content is removed
from the component template function and is compiled into its own
template function. But this means that the information about the
attributes that were on the content are lost and the projection
selection mechanism is unable to match the original
`<div *ngIf="..." some-attr>`.
This commit adds support for this in ivy. Attributes are separated into three
groups (Bindings, Templates and "other"). For inline-templates the Bindings
and "other" types are hoisted back from the contained node to the `template()`
instruction, so that they can be used in content projection matching.
PR Close#29041
This commit adds a new `AttributeMarker` type that will be used, in a
future commit, to mark attributes as coming from an inline-template
expansion, rather than the element that is being contained in the template.
PR Close#29041
Some tests in exports spec rely on the exact output of innerHTML. In IE11 the order of attributes might change, thus causing tests to fail (in case an element contains more than one attribute). This commit avoids innerHTML usage and performs the necessary checks via element properties.
PR Close#29127
Some of the export tests had assertions that relied on capitalization
of attributes in the DOM. IE treats capitalization somewhat differently,
so our SauceLabs tests were failing.
This commit tweaks the tests so that the assertions do not rely on
attributes to be capitalized or not.
PR Close#29125
Introduces an update schematic for the "@angular/core" package
that automatically migrates pre-V8 "ViewChild" and "ContentChild"
queries to the new explicit timing syntax. This is not required
yet, but with Ivy, queries will be "dynamic" by default. Therefore
specifying an explicit query timing ensures that developers can
smoothly migrate to Ivy (once it's the default).
Read more about the explicit timing API here:
https://github.com/angular/angular/pull/28810
PR Close#28983
Angular supports having a component extend off of a parent component.
When this happens, all annotation-level data is inherited including styles
and classes. Up until now, Ivy only paid attention to static styling
values on the parent component and not the child component. This patch
ensures that both the parent's component and child component's styling
data is merged and rendered accordingly.
Jira Issue: FW-1081
PR Close#29015
Currently we only reset the `Attached` flag of a view if it is detached through its parent, however this means that if a root view is destroyed, its flag will never be reset. This manifested itself in one of the Material tests where we were destroying the root view.
This PR resolves FW-1130.
PR Close#29064
Currently if a user accidentally calls ViewContainerRef.insert() with
a view that has already been attached, we do not clean up the references
properly, so we create a view tree with a cycle. This causes an infinite
loop when the view is destroyed.
This PR ensures that we fall back to ViewContainerRef.move() behavior
if we try to insert a view that is already attached. This fixes the
cycle and honors the user intention.
PR Close#29047
This change helps highlight certain misoptimizations with Closure
compiler. It is also stylistically preferable to consistently use index
access on index sig types.
Roughly, when one sees '.foo' they know it is always checked for typos
in the prop name by the type system (unless 'any'), while "['foo']" is
always not.
Once all angular repos are conforming this will become a tsetse.info
check, enforced by bazel.
PR Close#28937
This commit removes code duplication around projectables nodes insertion.
It also simplfy the overall logic by using recursive function calls instead
of hand-unrolled stack (we can always optimise this part if needed).
PR Close#29008
When web-animations and/or CSS keyframes are used for animations certain
CSS style values (such as `display` and `position`) may be ignored by a
keyframe-based animation. Angular should special-case these styles to
ensure that they get applied as inline styles throughout the duration of
the animation.
Closes#24923Closes#25635
Jira Issue: FW-1091
Jira Issue: FW-1092
PR Close#28911
Prior to this change i18n block bindings were converted to Expressions right away (once we first access them), when in non-i18n cases we processed them differently: the actual conversion happens at instructions generation. Because of this discrepancy, the output for bindings in i18n blocks was generated incorrectly (with invalid indicies in pipeBindN fns and invalid references to non-existent local variables). Now the bindings processing is unified and i18nExp instructions should contain right bind expressions.
PR Close#28969
Karma is not configured to retrieve the imported scripts using those
absolute deep paths. Using relative paths instead.
See [here][1] for an example failing job.
[1]: https://circleci.com/gh/angular/angular/220751
PR Close#29009
In the past, the sanitizer would remove unsafe elements, but still
traverse and sanitize (and potentially preserve) their content. This was
problematic in the case of `<style></style>` tags, whose content would
be converted to HTML text nodes.
In order to fix this, the sanitizer's behavior was changed in #25879 to
ignore the content of _all_ unsafe elements. While this fixed the
problem with `<style></style>` tags, it unnecessarily removed the
contents for _any_ unsafe element. This was an unneeded breaking change.
This commit partially restores the old sanitizer behavior (namely
traversing content of unsafe elements), but introduces a list of
elements whose content should not be traversed if the elements
themselves are considered unsafe. Currently, this list contains `style`,
`script` and `template`.
Related to #25879 and #26007.
Fixes#28427
PR Close#28804
Currently if an embedded view contains projected nodes, its `rootNodes` array will include `null` instead of the root nodes inside the projection slot. This manifested itself in one of the Material unit tests where we stamp out a template and then move its `rootNodes` into the overlay container.
This PR is related to FW-1087.
PR Close#28951
For efficiency reasons we often put several different data types (`RNode`, `LView`, `LContainer`,
`StylingContext`) in same location in `LView`. This is because we don't want to pre-allocate
space
for it because the storage is sparse. This file contains utilities for dealing with such data
types.
How do we know what is stored at a given location in `LView`.
- `Array.isArray(value) === false` => `RNode` (The normal storage value)
- `Array.isArray(value) === true` => than the `value[0]` represents the wrapped value.
- `typeof value[TYPE] === 'object'` => `LView`
- This happens when we have a component at a given location
- `typeof value[TYPE] === 'number'` => `StylingContext`
- This happens when we have style/class binding at a given location.
- `typeof value[TYPE] === true` => `LContainer`
- This happens when we have `LContainer` binding at a given location.
NOTE: it is assumed that `Array.isArray` and `typeof` operations are very efficient.
PR Close#28947
`LView`, `LContainer`, `StylingContext` are all arrays which wrap either
an `HTMLElement`, `LView`, `LContainer`, `StylingContext`. It is often
necessary to retrieve the correct type of element from the location
which means that we often have to wrap the arrays. Logically it makes
more sense if the thing which we are wrapping is at `0` location. Also
it may be more performant since data is more local which may result in
more L2 cache hits in CPU.
PR Close#28947
This change contains conditionally attached classes which provide human readable (debug) level
information for `LView`, `LContainer` and other internal data structures. These data structures
are stored internally as array which makes it very difficult during debugging to reason about the
current state of the system.
Patching the array with extra property does change the array's hidden class' but it does not
change the cost of access, therefore this patching should not have significant if any impact in
`ngDevMode` mode. (see: https://jsperf.com/array-vs-monkey-patch-array)
So instead of seeing:
```
Array(30) [Object, 659, null, …]
```
```
LViewDebug {
views: [...],
flags: {attached: true, ...}
nodes: [
{html: '<div id="123">', ..., nodes: [
{html: '<span>', ..., nodes: null}
]}
]
}
```
PR Close#28945
If an interface is not exported publicly from its package, then the doc-gen
does not see it, and so cannot include it in the generated documentation.
This was the case for a number of `...Decorator` interfaces, such as
`PipeDecorator` and `InputDecorator.
This commit adds these interfaces to the public export to fix this problem.
PR Close#28836
Google3 detected circular references here, so splitting up this rather hodge-podge list of functions into slightly better organizational units.
PR Close#28382
- TView no longer stores childIndex
- LView now as CHILD_HEAD and CHILD_TAIL
TView used to store the head of the list, therefor all LViews had to have the same head, which is incorrect.
PR Close#28382
- Removes CONTAINER_INDEX
- LView[PARENT] now contains LContainer when necessary
- Removes now unused arguments to methods after refactor
PR Close#28382
Marc Laval
Kara Erickson
Kristiyan Kostadinov
Pete Bacon Darwin
Pawel Kozlowski
Paul Gschwendtner
Bolek Szewczyk
Cameron Steffen
Greg Magolan
JoostK
Ben Lesh
Matias Niemelä
Rob Gregorius
Andrew Kushnir
Alex Eagle
Olivier Combe
Adam Plumer
cexbrayat
Alex Rickabaugh
Riley Littlefield
Ivan Tham
Alan
Judy Bogart
Misko Hevery
Rado Kirov
George Kalpakas
Wassim Chegham
Brandon