This commit fixes a compatibility bug where pre-order lifecycle
hooks (onInit, doCheck, OnChanges) for directives on the same
host node were executed based on the order the directives were
matched, rather than the order the directives were instantiated
(i.e. injection order).
This discrepancy can cause issues with forms, where it is common
to inject NgControl and try to extract its control property in
ngOnInit. As the NgControl directive is injected, it should be
instantiated before the control value accessor directive (and
thus its hooks should run first). This ensures that the NgControl
ngOnInit can set up the form control before the ngOnInit
for the control value accessor tries to access it.
Closes#32522
PR Close#34026
The root view case is already covered by the existing code in the
getRenderParent function so no need to have an explicit checks
(and associated memory reads) again.
PR Close#33988
The assertion that we have in the `directiveInject` instruction is too restrictive and we came across some pattern where it throws unnecessarily. This commit removes that assertion for now and more detailed investigation is needed to decide is we need to restrict the set of TNodeType again.
This commit also adds a test which triggered the TNodeType.View to come up in the `directiveInject` instruction, so it might be useful to avoid regressions during further refactoring.
PR Close#33948
NgModule compilation in JIT mode (that is also used in TestBed) caches module scopes on NgModule defs (using `transitiveCompileScopes` field). Module overrides (defined via TestBed.overrideModule) may invalidate this data by adding/removing items in `declarations` list. This commit forces TestBed to recalculate transitive scopes in case module overrides are present, so TestBed always gets the most up-to-date information.
PR Close#33787
NgModules in Ivy have a definition which contains various different bits
of metadata about the module. In particular, this metadata falls into two
categories:
* metadata required to use the module at runtime (for bootstrapping, etc)
in AOT-only applications.
* metadata required to depend on the module from a JIT-compiled app.
The latter metadata consists of the module's declarations, imports, and
exports. To support JIT usage, this metadata must be included in the
generated code, especially if that code is shipped to NPM. However, because
this metadata preserves the entire NgModule graph (references to all
directives and components in the app), it needs to be removed during
optimization for AOT-only builds.
Previously, this was done with a clever design:
1. The extra metadata was added by a function called `setNgModuleScope`.
A call to this function was generated after each NgModule.
2. This function call was marked as "pure" with a comment and used
`noSideEffects` internally, which causes optimizers to remove it.
The effect was that in dev mode or test mode (which use JIT), no optimizer
runs and the full NgModule metadata was available at runtime. But in
production (presumably AOT) builds, the optimizer runs and removes the JIT-
specific metadata.
However, there are cases where apps that want to use JIT in production, and
still make an optimized build. In this case, the JIT-specific metadata would
be erroneously removed. This commit solves that problem by adding an
`ngJitMode` global variable which guards all `setNgModuleScope` calls. An
optimizer can be configured to statically define this global to be `false`
for AOT-only builds, causing the extra metadata to be stripped.
A configuration for Terser used by the CLI is provided in `tooling.ts` which
sets `ngJitMode` to `false` when building AOT apps.
PR Close#33671
TNode.inputs are initialised during directives resolution now so we know early
if a node has directives with inputs or no. We don't need to use undefined value
as an indicator that inputs were not resolved yet.
PR Close#33798
Before this change a public name of a directive's input
was stored in 2 places:
- as a key of an object on TNode.index;
- as a value of PropertyAliasValue at the index 1
This PR changes the data structure so the public name is stored
only once as a key on TNode.index. This saves one array entry
for each and every directive input.
PR Close#33798
Adds support for chaining of `styleProp`, `classProp` and `stylePropInterpolateX` instructions whenever possible which should help generate less code. Note that one complication here is for `stylePropInterpolateX` instructions where we have to break into multiple chains if there are other styling instructions inbetween the interpolations which helps maintain the execution order.
PR Close#33837
This refactorings clearly separates the first and subsequent creation execution
of the `template` instruction. This approach has the following benefits:
- it is clear what happens during the first vs. subsequent executions;
- we can avoid several memory reads and checks after the first creation pass
(there is measurable performance improvement on various benchmarks);
- the template instructions becomes smaller and should become a candidate
for optimisations / inlining faster;
PR Close#33856
When asking for a ViewContainerRef on <ng-container> we do reuse <ng-container> comment
node as a LContainer's anachor. Before this fix the act of re-using a <ng-container>'s
comment node would result in this comment node being re-appended to the DOM in the wrong
place. With the fix in this PR we make sure that re-using <ng-container>'s comment node
doesn't result in unwanted DOM manipulation (ng-gontainer's comment node is already part
of the DOM and doesn't have to be re-created / re-appended).
PR Close#33816
Prior to this commit the assert that we have in `directiveInject` (assert introduced recently) didn't include IcuContainer TNode type and as a result, the error is thrown in case pipes with dependencies are used inside ICUs. This commit extends the assert to allow for IcuContainer TNode types.
PR Close#33832
This commit moves the `setLContainerActiveIndex` and `getLContainerActiveIndex` functions used in a few files to a common `util/view_util.ts` lib to avoid cyclical dependency while importing `instructions/container.ts` where these functions located originally.
PR Close#33831
Currently if a consumer does something like the following, the object literal will be shared across the two elements and any instances of the component template. The same applies to array literals:
```
<div [someDirective]="{}"></div>
<div [someDirective]="{}"></div>
```
These changes make it so that we generate a pure function even if an object is constant so that each instance gets its own object.
Note that the original design for this fix included moving the pure function factories into the `consts` array. In the process of doing so I realized that pure function are also used inside of directive host bindings which means that we don't have access to the `consts`.
These changes also:
* Fix an issue that meant that the `pureFunction0` instruction could only be run during creation mode.
* Make the `getConstant` utility slightly more convenient to use. This isn't strictly required for these changes to work, but I had made it as a part of a larger refactor that I ended up reverting.
PR Close#33705
Prior to this change, setting style prop value to undefined or empty string would not result in resetting prop value in case the style prop is defined using [style.prop.px] syntax. The problem is that the check for empty value (and thus reseting the value) considered successful only in case of `null` value. This commit updates the check to use `isStylingValueDefined` function that also checks for undefined and empty string.
PR Close#33780
Prior to this change, ComponentFactory.create function invocation in Ivy retained the content of the host element (in case host element reference or CSS seelctor is provided as an argument). This behavior is different in View Engine, where the content of the host element was cleared, except for the case when ShadowDom encapsulation is used (to make sure native slot projection works). This commit aligns Ivy and View Engine and makes sure the host element is cleared before component content insertion.
PR Close#33487
Chains multiple listener instructions on a particular element into a single call which results in less generated code. Also handles listeners on templates, host listeners and synthetic host listeners.
PR Close#33720
Most of the use of `document` in the framework is within
the DI so they just inject the `DOCUMENT` token and are done.
Ivy is special because it does not rely upon the DI and must
get hold of the document some other way. There are a limited
number of places relevant to ivy that currently consume a global
document object.
The solution is modelled on the `LOCALE_ID` approach, which has
`getLocaleId()` and `setLocaleId()` top-level functions for ivy (see
`core/src/render3/i18n.ts`). In the rest of Angular (i.e. using DI) the
`LOCALE_ID` token has a provider that also calls setLocaleId() to
ensure that ivy has the same value.
This commit defines `getDocument()` and `setDocument() `top-level
functions for ivy. Wherever ivy needs the global `document`, it calls
`getDocument()` instead. Each of the platforms (e.g. Browser, Server,
WebWorker) have providers for `DOCUMENT`. In each of those providers
they also call `setDocument()` accordingly.
Fixes#33651
PR Close#33712
When debugging `LView`s it is easy to get lost since all of them have
the same name. This change does three things:
1. It makes `TView` have an explicit type:
- `Host`: for the top level `TView` for bootstrap
- `Component`: for the `TView` which represents components template
- `Embedded`: for the `TView` which represents an embedded template
2. It changes the name of `LView` to `LHostView`, `LComponentView`, and
`LEmbeddedView` depending on the `TView` type.
3. For `LComponentView` and `LEmbeddedView` we also append the name of
of the `context` constructor. The result is that we have `LView`s which
are name as: `LComponentView_MyComponent` and `LEmbeddedView_NgIfContext`.
The above changes will make it easier to understand the structure of the
application when debugging.
NOTE: All of these are behind `ngDevMode` and will get removed in
production application.
PR Close#33449
Prior to this commit, i18n runtime logic used `elementAttributeInternal` function (that uses `setAttribute` function under the hood) for all elements where i18n attributes are present. However the `<ng-container>` elements in a template may also have i18n attributes and calling `setAttribute` fails, since they are represented as comment nodes in DOM. This commit ensures that we call `setAttribute` on nodes with TNodeType.Element type (that support that operation) only.
PR Close#33599
This patch gets rid of the configuration settings present in the
`TStylingContext` array that is used within the styling algorithm
for `[style]`, `[style.prop]`, `[class]` and `[class.name]` bindings.
These configurations now all live inside of the `TNodeFlags`.
PR Close#33540
This patch removes the need to lock the style and class context
instances to track when bindings can be added. What happens now is
that the `tNode.firstUpdatePass` is used to track when bindings are
registered on the context instances.
PR Close#33521
This patch introduces a `firstUpdatePass` flag which can be used inside
of instruction code to determine if this is the first time each
instruction is running inside of the update block of a template or
a hostBindings function.
PR Close#31270
We already store a reference to a native host of a component
view so we can drop the getHostNative utility function (that
was getting the same reference from another data structure).
PR Close#33554
In ViewEngine we used to throw an error if we encountered an unknown element while rendering. We have this already for Ivy in AoT, but we didn't in JiT. These changes implement the error for JiT mode.
PR Close#33419
Before this change instantiating multiple directives on the same
host node would result in repeated RNode retrieval and patching.
This commint re-organises code around directive instance creation
so the host node processing (common to all directives) happens
once and only once.
As the additional benefit the directive instantiation logic gets
centralised in one function (at the expense of patching logic
duplication for root node).
PR Close#33322
