When using `platformBrowserDynamic().bootstrapModule()`, it is possible
to set `defaultEncapsulation` and `preserveWhitespaces` as default
configuration to influence how components are compiled. When compiling
components in JIT with Ivy, these options were not taken into account.
This commit publishes the options to be globally available, so that the
lazy compilation of JIT components has access to the configured
bootstrap options. Note that this approach does not allow changing the
options once they have been set, as Ivy's compilation model does not
allow for multiple compilations to exist at the same time.
For applications that bootstrap multiple modules, it is now required
to provide the exact same bootstrap options. An error is logged if
incompatible bootstrap options are provided, in which case the updated
options will be ignored.
Fixes#35230
Resolved FW-1838
PR Close#35534
This commit performs a few updates to internal functions that would be required in upcoming changes to support synthetic host bindings in Directives.
* the `elementPropertyInternal` function was refactored to accept renderer as an argument (prior to that, there was a function that loads the renderer in some specific way for animation bindings)
* `elementPropertyInternal`, `elementAttributeInternal` and `listenerInternal` functions were updated to have a fixed set of arguments (for better performance)
* `elementPropertyInternal` and `elementAttributeInternal` functions were updated to take `tNode` as an argument instead of passing node index (that was used to retrieve `tNode` internally), in some cases we already have `tNode` available or we can retrieve it from the state
The refactoring was triggered by the need to pass different renderers to the `elementPropertyInternal` to support synthetic host bindings in Directives (see this comment for additional context: https://github.com/angular/angular/pull/35568/files#r388034584).
PR Close#35884
Prior to this commit, Ivy compiler didn't handle directive inputs with interpolations located on `<ng-template>` elements (e.g. `<ng-template dir="{{ field }}">`). That was the case for regular inputs as well as inputs that should be processed via i18n subsystem (e.g. `<ng-template i18n-dir dir="Hello {{ name }}">`). This commit adds support for such expressions for explicit `<ng-template>`s as well as a number of tests to confirm the behavior.
Fixes#35752.
PR Close#35984
Prior to this commit, i18n runtime logic relied on the assumption that provided translation is syntactically correct, specifically around ICU syntax. However provided translations might contain some errors that lead to parsing failure. Specifically when translation contains curly braces, runtime i18n logic tries to parse them as an ICU expression and fails. This commit validates ICU parsing result (making sure it was parsed correctly) and throws an error if parsing error happens. The error that is thrown also contains translated message text for easier debugging.
Note: the check and the error message introduced in this PR is a safeguard against the problem that led to unhandled i18n runtime logic crash. So the framework behavior remains the same, we just improve the error message and it should be safe to merge to the patch branch.
Resolves#35689.
PR Close#35923
ts-api-guardian uses `require.resolve` to resolve the actual and golden files under bazel. In Windows for these files to be resolved correct the full path including the workspace name as per the MANIFEST entries is required.
This used to be the case until the recent changes done to use npm_integration tests
83c74ceacf/tools/public_api_guard/public_api_guard.bzl (L19)83c74ceacf/tools/public_api_guard/public_api_guard.bzl (L28)
```
bazel test //packages/... --test_tag_filters=api_guard
//packages/animations:animations_api (cached) PASSED in 18.4s
//packages/common:common_api (cached) PASSED in 25.5s
//packages/compiler-cli:compiler_options_api (cached) PASSED in 12.4s
//packages/compiler-cli:error_code_api (cached) PASSED in 11.6s
//packages/core:core_api (cached) PASSED in 20.6s
//packages/core:ng_global_utils_api (cached) PASSED in 13.5s
//packages/elements:elements_api (cached) PASSED in 11.9s
//packages/forms:forms_api (cached) PASSED in 13.9s
//packages/http:http_api (cached) PASSED in 14.8s
//packages/localize:localize_api (cached) PASSED in 6.3s
//packages/platform-browser:platform-browser_api (cached) PASSED in 18.1s
//packages/platform-browser-dynamic:platform-browser-dynamic_api (cached) PASSED in 14.0s
//packages/platform-server:platform-server_api (cached) PASSED in 13.9s
//packages/platform-webworker:platform-webworker_api (cached) PASSED in 13.7s
//packages/platform-webworker-dynamic:platform-webworker-dynamic_api (cached) PASSED in 11.7s
//packages/router:router_api (cached) PASSED in 19.9s
//packages/service-worker:service-worker_api (cached) PASSED in 18.1s
//packages/upgrade:upgrade_api (cached) PASSED in 13.5s
```
Reference: DEV-71
PR Close#36034
Moves the public api .d.ts files from tools/public_api_guard to
goldens/public-api.
Additionally, provides a README in the goldens directory and a script
assist in testing the current state of the repo against the goldens as
well as a command for accepting all changes to the goldens in a single
command.
PR Close#35768
Pure pipes are not invoked again until their arguments are modified. The same
rule should apply to pure pipes that throw an exception. This fix ensures that
a pure pipe is not re-invoked if it throws an exception and arguments are not
changed.
PR Close#35827
This commit adds support in the Angular monorepo and in the Angular
compiler(s) for TypeScript 3.8. All packages can now compile with
TS 3.8.
For most of the repo, only a handful few typings adjustments were needed:
* TS 3.8 has a new `CustomElementConstructor` DOM type, which enforces a
zero-argument constructor. The `NgElementConstructor` type previously
declared a required `injector` argument despite the fact that its
implementation allowed `injector` to be optional. The interface type was
updated to reflect the optionality of the argument.
* Certain error messages were changed, and expectations in tests were
updated as a result.
* tsserver (part of language server) now returns performance information in
responses, so test expectations were changed to only assert on the actual
body content of responses.
For compiler-cli and schematics (which use the TypeScript AST) a major
breaking change was the introduction of the export form:
```typescript
export * as foo from 'bar';
```
This is a `ts.NamespaceExport`, and the `exportClause` of a
`ts.ExportDeclaration` can now take this type as well as `ts.NamedExports`.
This broke a lot of places where `exportClause` was assumed to be
`ts.NamedExports`.
For the most part these breakages were in cases where it is not necessary
to handle the new `ts.NamedExports` anyway. ngtsc's design uses the
`ts.TypeChecker` APIs to understand syntax and so automatically supports the
new form of exports.
The View Engine compiler on the other hand extracts TS structures into
metadata.json files, and that format was not designed for namespaced
exports. As a result it will take a nontrivial amount of work if we want to
support such exports in View Engine. For now, these new exports are not
accounted for in metadata.json, and so using them in "folded" Angular
expressions will result in errors (probably claiming that the referenced
exported namespace doesn't exist).
Care was taken to only use TS APIs which are present in 3.7/3.6, as Angular
needs to remain compatible with these for the time being.
This commit does not update angular.io.
PR Close#35864
Prior to this commit, while calculating the scope for a module, Ivy compiler processed `declarations` field first and `imports` after that. That results in a couple issues:
* for Pipes with the same `name` and present in `declarations` and in an imported module, Pipe from imported module was selected. In View Engine the logic is opposite: Pipes from `declarations` field receive higher priority.
* for Directives with the same selector and present in `declarations` and in an imported module, we first invoked the logic of a Directive from `declarations` field and after that - imported Directive logic. In View Engine, it was the opposite and the logic of a Directive from the `declarations` field was invoked last.
In order to align Ivy and View Engine behavior, this commit updates the logic in which we populate module scope: we first process all imports and after that handle `declarations` field. As a result, in Ivy both use-cases listed above work similar to View Engine.
Resolves#35502.
PR Close#35850
The options for `flatModuleId` and `flatModuleOutFile` had been removed in the CLI
from generated libraries with 718ee15b9a.
This has been done because `ng-packagr` (which is used to build the
libraries) automatically set these options in-memory when it compiles the library.
No migration has been created for this because there was no actual need to get rid of
this. Keeping the options in the library `tsconfig` does not cause any problems unless
the `tsconfig` is used outside of `ng-packagr`. This was not anticipated, but is now
commonly done in `ng update` migrations.
The `ng update` migrations try to create an instance of the `AngularCompilerProgram` by
simply parsing the `tsconfig`. The migrations make the valid assumption that `tsconfig` files
are not incomplete/invalid. They _definitely_ are in the file system though. It just works for
libraries because `ng-packagr` in-memory completes the invalid `tsconfig` files, so that they
can be passed to the `@angular/compiler-cli`.
We can't have this logic in the `ng update` migrations because it's
out-of-scope for individual migrations to distinguish between libraries
and applications. Also it would be out-of-scope to parse the
`ng-packagr` configuration and handle the tsconfig in-memory completion.
As a workaround though, we can remove the flat-module bundle options
in-memory when creating the compiler program. This is acceptable since
we don't emit the program and the flat module bundles are not needed.
Fixes#34985.
PR Close#35824
This reverts commit 00f3c58bb9.
Rolling back because it could be breaking e2e tests that assert that
there are no errors in the console after the assertions have run. We can
re-add this in v10.
PR Close#35845
Changes the Ivy unknown element/property messages from being logged with `console.warn` to `console.error`. This should make them a bit more visible without breaking existing apps. Furthermore, a lot of folks filter out warning messages in the dev tools' console, whereas errors are usually still shown.
Fixes#35699.
PR Close#35798
This is a follow up to #35637 which resolved a similar issue for `ComponentFactoryResolver`, but not the root cause. When a `NgModuleRef` is created, it instantiates an `Injector` internally which in turn resolves all of injector types. This can result in a circular call that results in an error, because the module is one of the injector types being resolved.
These changes work around the issue by allowing the constructor to run before resolving the injector types.
Fixes#35677.
Fixes#35639.
PR Close#35731
Switches our tslint setup to the standard `tslint.json` linter excludes.
The set of files that need to be linted is specified through a Yarn script.
For IDEs, open files are linted with the closest tslint configuration, if the
tslint IDE extension is set up, and the source file is not excluded.
We cannot use the language service plugin for tslint as we have multiple nested
tsconfig files, and we don't want to add the plugin to each tsconfig. We
could reduce that bloat by just extending from a top-level tsconfig that
defines the language service plugin, but unfortunately the tslint plugin does
not allow the use of tslint configs which are not part of the tsconfig project.
This is problematic since the tslint configuration is at the project root, and we
don't want to copy tslint configurations next to each tsconfig file.
Additionally, linting of `d.ts` files has been re-enabled. This has been
disabled in the past and a TODO has been left. This commit fixes the
lint issues and re-enables linting.
PR Close#35800
`ɵɵgetInheritedFactory()` is called from generated code for a component which extends another class. This function is detected by Closure to have a side effect and is not able to tree shake the component as a result. Marking it with `noSideEffects()` tells Closure it can remove this function under the relevant tree shaking conditions.
PR Close#35769
`ɵɵNgOnChangesFeature()` would set `ngInherit`, which is a side effect and also not necessary. This was pulled out to module scope so the function itself can be pure. Since it only curries another function, the call is entirely unnecessary. Updated the compiler to only generate a reference to this function, rather than a call to it, and removed the extra curry indirection.
PR Close#35769
This marks the function are "pure" and eligible to be tree shaken by Closure. Without this, initializing `ngDevMode` is considered a side effect which prevents this function from being tree shaken and also any component which calls it.
PR Close#35769
This is useful for propagating return values without them being converted to a string. It still provides the same guarantees to Closure, which will assume that the function invoked is pure and can be tree-shaken accordingly.
PR Close#35769
Before this change ngIvy implementation of queries would throw upon
encountering null / undefined query result collected from an embedded
view. It turns out that we might have a provider that explicitly provides
a null / undefined value in a place of a token queried for.
This commit removes a check from the ngIvy query implementation that was
asserting on a query result to be defined.
Fixes#35673
PR Close#35796
Before this change `[class]` and `[className]` were both converted into `ɵɵclassMap`. The implication of this is that at runtime we could not differentiate between the two and as a result we treated `@Input('class')` and `@Input('className)` as equivalent.
This change makes `[class]` and `[className]` distinct. The implication of this is that `[class]` becomes `ɵɵclassMap` instruction but `[className]` becomes `ɵɵproperty' instruction. This means that `[className]` will no longer participate in styling and will overwrite the DOM `class` value.
Fix#35577
PR Close#35668
Prior to this commit, i18n attributes defined on `<ng-template>` tags were not processed by the compiler. This commit adds the necessary logic to handle i18n attributes in the same way how these attrs are processed for regular elements.
PR Close#35681
This commit updates the host bindings micro benchmark to run tests with mutliple directives (where each directive contains host bindings). The number of directives is configurable as a constant in the micro benchmark file. This change is needed to have an ability to measure/compare perf in different scenarios.
PR Close#35736
This commit extends the range of tNode types that may have local refs to include `TNodeType.Container` to account for `<ng-template>`s. Original changes in https://github.com/angular/angular/pull/33415 didn't include that type and as a result, an error is thrown at runtime in case an i18n block contains an `<ng-template>` with local refs.
PR Close#35758
Prior to this change, the logic that compiles Injectable in JIT mode used incorrect configuration that triggers a problem when `ChangeDetectorRef` is used as a dependency. This commit updates the logic to generate correct inject instruction to add the `ChangeDetectorRef` dependency in case it's requested in @Injectable class.
PR Close#35706
This commit adds micro benchmark for host bindings, so that we can assess the impact of changes related to host bindings (for example PR #35568).
PR Close#35705
If an injectable has a `useClass`, Ivy injects the token in `useClass`, rather than the original injectable, if the injectable is re-provided under a different token. The correct behavior is that it should inject the re-provided token, no matter whether it has `useClass`.
Fixes#34110.
PR Close#34574
When binding to `[style]` we correctly sanitized/unwrapped properties but we did not do it for the object itself.
```
@HostBinding("style")
style: SafeStyle = this.sanitizer.bypassSecurityTrustStyle(
"background: red; color: white; display: block;"
);
```
Above code would fail since the `[style]` would not unwrap the `SafeValue` and would treat it as object resulting in incorrect behavior.
Fix#35476 (FW-1875)
PR Close#35564
Currently we resolve the `NgModuleRef.componentFactoryResolver` by going through the injector, but the problem is that `ComponentFactoryResolver` has a dependency on `NgModuleRef`, which means that if the module that's attached to the ref tries to inject `ComponentFactoryResolver` in its constructor, we'll create a circular dependency which throws at runtime.
These changes resolve the issue by creating the `ComponentFactoryResolver` manually ahead of time without going through the injector. We can do this safely, because the only dependency for the resolver is the current module ref which is providing it.
Aside from fixing the issue, another advantage to this approach is that it should reduce the amount of generated JS, because it removes a getter and a provider definitio.
Fixes#35580.
PR Close#35637
Currently if TestBed detects that TestBed.overrideModule was used for module X, transitive scopes are recalculated recursively for all modules that X imports and previously calculated data (stored in cache) is ignored. This behavior was introduced in https://github.com/angular/angular/pull/33787 to fix stale transitive scopes issue (cache was not updated if module overrides are present).
The perf issue comes from a "diamond" problem, where module X is overridden which imports modules A and B, which both import module C. Under previous logic, module C gets its transitive deps recomputed multiple times, during the recompute for both A and B. For deep graphs and big common/shared modules this can be super costly.
This commit updates the logic to recalculate ransitive scopes for the overridden module, while keeping previously calculated scopes of other modules untouched.
PR Close#35454
* it's tricky to get out of the runfiles tree with `bazel test` as `BUILD_WORKSPACE_DIRECTORY` is not set but I employed a trick to read the `DO_NOT_BUILD_HERE` file that is one level up from `execroot` and that contains the workspace directory. This is experimental and if `bazel test //:test.debug` fails than `bazel run` is still guaranteed to work as `BUILD_WORKSPACE_DIRECTORY` will be set in that context
* test //integration:bazel_test and //integration:bazel-schematics_test exclusively
* run "exclusive" and "manual" bazel-in-bazel integration tests in their own CI job as they take 8m+ to execute
```
//integration:bazel-schematics_test PASSED in 317.2s
//integration:bazel_test PASSED in 167.8s
```
* Skip all integration tests that are now handled by angular_integration_test except the tests that are tracked for payload size; these are:
- cli-hello-world*
- hello_world__closure
* add & pin @babel deps as newer versions of babel break //packages/localize/src/tools/test:test
@babel/core dep had to be pinned to 7.6.4 or else //packages/localize/src/tools/test:test failed. Also //packages/localize uses @babel/generator, @babel/template, @babel/traverse & @babel/types so these deps were added to package.json as they were not being hoisted anymore from @babel/core transitive.
NB: integration/hello_world__systemjs_umd test must run with systemjs 0.20.0
NB: systemjs must be at 0.18.10 for legacy saucelabs job to pass
NB: With Bazel 2.0, the glob for the files to test `"integration/bazel/**"` is empty if integation/bazel is in .bazelignore. This glob worked under these conditions with 1.1.0. I did not bother testing with 1.2.x as not having integration/bazel in .bazelignore is correct.
PR Close#33927
When a pipe inherits its constructor, and as a result its factory, from an injectable in AOT mode, it can end up throwing an error, because the inject implementation hasn't been set yet. These changes ensure that the implementation is set before the pipe's factory is invoked.
Note that this isn't a problem in JIT mode, because the factory inheritance works slightly differently, hence why this test isn't going through `TestBed`.
Fixes#35277.
PR Close#35468
In #33705 we made it so that we generate pure functions for object/array literals in order to avoid having them be shared across elements/views. The problem this introduced is that further down the line the `ContantPool` uses the generated literal in order to figure out whether to share an existing factory or to create a new one. `ConstantPool` determines whether to share a factory by creating a key from the AST node and using it to look it up in the factory cache, however the key generation function didn't handle function invocations and replaced them with `null`. This means that the key for `{foo: pureFunction0(...)}` and `{foo: null}` are the same.
These changes rework the logic so that instead of generating a `null` key
for function invocations, we generate a variable called `<unknown>` which
shouldn't be able to collide with anything.
Fixes#35298.
PR Close#35481
In View Engine, host element of dynamically created component received attributes and classes extracted from component's selector. For example, if component selector is `[attr] .class`, the `attr` attribute and `.class` class will be add to host element. This commit adds similar logic to Ivy, to make sure this behavior is aligned with View Engine.
PR Close#34481
Before this change content queries with the `descendants: false` option, as implemented in ivy,
would not descendinto `<ng-container>` elements. This behaviour was different from the way the
View Engine worked. This change alligns ngIvy and VE behaviours when it comes to queries and the
`<ng-container>` elements and fixes a common bugs where a query target was placed inside the
`<ng-container>` element with a * directive on it.
Before:
```html
<needs-target>
<ng-container *ngIf="condition">
<div #target>...</div> <!-- this node would NOT match -->
</ng-container>
</needs-target>
```
After:
```html
<needs-target>
<ng-container *ngIf="condition">
<div #target>...</div> <!-- this node WILL match -->
</ng-container>
</needs-target>
```
Fixes#34768
PR Close#35384
When the same provider is resolved multiple times on the same node, the first invocation had the correct context, but all subsequent ones were incorrect because we were registering the hook multiple times under different indexes in `destroyHooks`.
Fixes#35167.
PR Close#35249
Currently the logic that handles ICUs located outside of i18n blocks may throw exceptions at runtime. The problem is caused by the fact that we store incorrect TNode index for previous TNode (index that includes HEADER_OFFSET) and do not store a flag whether this TNode is a parent or a sibling node. As a result, the logic that assembles the final output uses incorrect TNodes and in some cases throws exceptions (when incompatible structure is extracted from tView.data due to the incorrect index). This commit adjusts the index and captures whether TNode is a parent to make sure underlying logic manipulates correct TNode.
PR Close#35347
Given:
```
<div class="s1" [class]="null" [ngClass]="exp">
```
Notice that `[class]` binding is not a `string`. As a result the existing logic would not concatenate `[class]` with `class="s1"`. The resulting falsy value would than be sent to `ngClass` which would promptly clear all styles on the `<div>`
The new logic correctly handles falsy values for `[class]` bindings.
Fix#35335
PR Close#35350
Root cause is that for perf reasons we cache `LFrame` so that we don't have to allocate it all the time. To be extra fast we clear the `LFrame` on `enterView()` rather that on `leaveView()`. The implication of this strategy is that the deepest `LFrame` will retain objects until the `LFrame` allocation depth matches the deepest object.
The fix is to simply clear the `LFrame` on `leaveView()` rather then on `enterView()`
Fix#35148
PR Close#35156
In the `loadRenderer` we make an assumption that the value will always be an `LView`, but if there's a directive on the same node which injects `ViewContainerRef` the `LView` will be wrapped in an `LContainer`. These changes add a call to unwrap the value before we try to read the value off of it.
Fixes#35342.
PR Close#35343
Prior to this change, element namespace was not set for host elements of dynamically created components that resulted in incorrect rendering in a browser. This commit adds the logic to pick and set correct namespace for host element when component is created dynamically.
PR Close#35136
- Adds `TView` into `LFrame`, read the `TView` from `LView` on `enterView`.
- Before this change the `TView` was ofter looked up from `LView` as `lView[TVIEW]`. This is suboptimal since reading from an Array, requires that the read checks array size before the read. This means that such a read has a much higher cost than reading from the property directly. By passing in the `TView` explicitly it makes the code more explicit and faster.
- Some rearrangements of arguments so that `TView` would come before `LView` for consistency.
PR Close#35069
Inside `*ngFor` the second run of the styling instructions can get into situation where it tries to read a value from a binding which has not yet executed. As a result the read is `NO_CHANGE` value and subsequent property read cause an exception as it is of wrong type.
Fix#35118
PR Close#35133
`TNode.directives` was introduced in https://github.com/angular/angular/pull/34938. Turns out that it is unnecessary because the information is already present it `TData` when combining with `TNode.directiveStart` and `TNode.directiveEnd`
Mainly this is true (conceptually):
```
expect(tNode.directives).toEqual(
tData.slice(
tNode.directivesStart,
tNode.directivesEnd - tNode.DirectivesStart -1
)
);
```
The refactoring removes `TNode.directives` and adds `TNode.directiveStyling` as we still need to keep location in the directive in `TNode`
PR Close#35050
These tests are used for perf testing and don't run as part of CI, as a result they bit-rotted. This fixes that. Long term these tests should be run as part of CI.
PR Close#35071
This change changes the priority order of static styling.
Current priority:
```
(least priority)
- Static
- Component
- Directives
- Template
- Dynamic Binding
- Component
- Map/Interpolation
- Property
- Directives
- Map/Interpolation
- Property
- Template
- Map/Interpolation
- Property
(highest priority)
```
The issue with the above priority is this use case:
```
<div style="color: red;" directive-which-sets-color-blue>
```
In the above case the directive will win and the resulting color will be `blue`. However a small change of adding interpolation to the example like so. (Style interpolation is coming in https://github.com/angular/angular/pull/34202)
```
<div style="color: red; width: {{exp}}px" directive-which-sets-color-blue>
```
Changes the priority from static binding to interpolated binding which means now the resulting color is `red`. It is very surprising that adding an unrelated interpolation and style can change the `color` which was not changed. To fix that we need to make sure that the static values are associated with priority of the source (directive or template) where they were declared. The new resulting priority is:
```
(least priority)
- Component
- Static
- Map/Interpolation
- Property
- Directives
- Static
- Map/Interpolation
- Property
- Template
- Static
- Map/Interpolation
- Property
(highest priority)
```
PR Close#34938
The current logic pulls multiproviders up to the parent module's
provider list. The result is that the multi provider being defined both in
the imported ModuleWithProviders and the parent and getting an extra
item in the multi provided array of values. This PR fixes that problem
by not pulling providers in ModuleWithProviders up to the parent module.
PR Close#34914
There are different `DebugNode`/`DebugElement` implementations (and
associated helper functions) for ViewEngine and Ivy. Additionally, these
classes/functions, which are defined inside the `core` package, are
imported by the `platform-browser` package.
Previously, this code was not tree-shaken as expected in Ivy. #30130
partially addressed the issue, but only for the case where `core` and
`platform-browser` end up in the same closure after webpack's scope
hoisting. In cases where this is not the case, our webpack/terser based
tooling is not capable of tree-shaking it.
This commit fixes the problem, by ensuring that the code retained in Ivy
mode (due to the cross-package import) does not unnecessarily reference
`DebugNode`/`DebugElement`, allowing the code to be tree-shaken away.
This results in a 7.6KB reduction in the size of the main angular.io
bundle.
Jira issue: [FW-1802](https://angular-team.atlassian.net/browse/FW-1802)
PR Close#35003
We had some logic for generating and passing in the `elIndex` parameter into the `hostBindings` function, but it wasn't actually being used for anything. The only place left that had a reference to it was the `StylingBuilder` and it only stored it without referencing it again.
PR Close#34969
Previously we would write to class/style as strings `element.className` and `element.style.cssText`. Turns out that approach is good for initial render but not good for updates. Updates using this approach are problematic because we have to check to see if there was an out of bound write to style and than perform reconciliation. This also requires the browser to bring up CSS parser which is expensive.
Another problem with old approach is that we had to queue the DOM writes and flush them twice. Once on element advance instruction and once in `hostBindings`. The double flushing is expensive but it also means that a directive can observe that styles are not yet written (they are written after directive executes.)
The new approach uses `element.classList.add/remove` and `element.style.setProperty/removeProperty` API for updates only (it continues to use `element.className` and `element.style.cssText` for initial render as it is cheaper.) The other change is that the styling changes are applied immediately (no queueing). This means that it is the instruction which computes priority. In some circumstances it may result in intermediate writes which are than overwritten with new value. (This should be rare)
Overall this change deletes most of the previous code and replaces it with new simplified implement. The simplification results in code savings.
PR Close#34804
This change introduces several functions for manipulating items in an array in an efficient (binary search) way.
- `arraySplice` a faster version of `Array.splice()`.
- `arrayInsert` a faster version of `Array.splice(index, 0, value)`.
- `arrayInsert2` a faster version of `Array.splice(index, 0, value1, value2)`.
- `arrayInsertSorted` a way to insert a value into sorted list.
- `arrayRemoveSorted` a way to remove a value from a sorted list.
- `arrayIndexOfSorted` a way to find a value in a sorted list.
- `ArrayMap` Efficient implementation of `Map` as an `Array`.
- `arrayMapSet`, `arrayMapGet`, `arrayMapIndexOf`, and `arrayMapDelete` for manipulating `ArrayMap`s.
PR Close#34804
NOTE: This change must be reverted with previous deletes so that it code remains in build-able state.
This change deletes old styling code and replaces it with a simplified styling algorithm.
The mental model for the new algorithm is:
- Create a linked list of styling bindings in the order of priority. All styling bindings ere executed in compiled order and than a linked list of bindings is created in priority order.
- Flush the style bindings at the end of `advance()` instruction. This implies that there are two flush events. One at the end of template `advance` instruction in the template. Second one at the end of `hostBindings` `advance` instruction when processing host bindings (if any).
- Each binding instructions effectively updates the string to represent the string at that location. Because most of the bindings are additive, this is a cheap strategy in most cases. In rare cases the strategy requires removing tokens from the styling up to this point. (We expect that to be rare case)S Because, the bindings are presorted in the order of priority, it is safe to resume the processing of the concatenated string from the last change binding.
PR Close#34616
NOTE: This change deletes code and creates a BROKEN SHA. If reverting this SHA needs to be reverted with the next SHA to get back into a valid state.
PR Close#34616
This change reverts https://github.com/angular/angular/pull/28711
NOTE: This change deletes code and creates a BROKEN SHA. If reverting this SHA needs to be reverted with the next SHA to get back into a valid state.
The change removes the fact that `NgStyle`/`NgClass` is special and colaborates with the `[style]`/`[class]` to merge its styles. By reverting to old behavior we have better backwards compatiblity since it is no longer treated special and simply overwrites the styles (same as VE)
PR Close#34616
The `computeStaticStyling` will be used for computing static styling value during `firstCreatePass`.
The function takes into account static styling from the template as well as from the host bindings. The host bindings need to be merged in front of the template so that they have the correct priority.
PR Closes#34418
Parsing styling is now simplified to be used like so:
```
for (let i = parseStyle(text); i <= 0; i = parseStyleNext(text, i)) {
const key = getLastParsedKey();
const value = getLastParsedValue();
...
}
```
This change makes it easier to invoke the parser from other locations in the system without paying the cost of creating and iterating over `Map` of styles.
PR Closes#34418
This change moves information from instructions to declarative position:
- `ɵɵallocHostVars(vars)` => `DirectiveDef.hostVars`
- `ɵɵelementHostAttrs(attrs)` => `DirectiveDef.hostAttrs`
When merging directives it is necessary to know about `hostVars` and `hostAttrs`. Before this change the information was stored in the `hostBindings` function. This was problematic, because in order to get to the information the `hostBindings` would have to be executed. In order for `hostBindings` to be executed the directives would have to be instantiated. This means that the directive instantiation would happen before we had knowledge about the `hostAttrs` and as a result the directive could observe in the constructor that not all of the `hostAttrs` have been applied. This further complicates the runtime as we have to apply `hostAttrs` in parts over many invocations.
`ɵɵallocHostVars` was unnecessarily complicated because it would have to update the `LView` (and Blueprint) while existing directives are already executing. By moving it out of `hostBindings` function we can access it statically and we can create correct `LView` (and Blueprint) in a single pass.
This change only changes how the instructions are generated, but does not change the runtime much. (We cheat by emulating the old behavior by calling `ɵɵallocHostVars` and `ɵɵelementHostAttrs`) Subsequent change will refactor the runtime to take advantage of the static information.
PR Close#34683
This adds `insertTStyleValue` but does not hook it up to anything yet.
The purpose of this function is to create a linked-list of styling
related bindings. The bindings can be traversed during flush.
The linked list also keeps track of duplicates. This is important
for binding to know if it needs to check other styles for reconciliation.
PR Close#34004
This change introduces class/style reconciliation algorithm for DOM elements.
NOTE: The code is not yet hooked up, it will be used by future style algorithm.
Background:
Styling algorithm currently has [two paths](https://hackmd.io/@5zDGNGArSxiHhgvxRGrg-g/rycZk3N5S)
when computing how the style should be rendered.
1. A direct path which concatenates styling and uses `elemnent.className`/`element.style.cssText` and
2. A merge path which uses internal data structures and uses `element.classList.add/remove`/`element.style[property]`.
The situation is confusing and hard to follow/maintain. So a future PR will remove the merge-path and do everything with
direct-path. This however breaks when some other code adds class or style to the element without Angular's knowledge.
If this happens instead of switching from direct-path to merge-path algorithm, this change provides a different mental model
whereby we always do `direct-path` but the code which writes to the DOM detects the situation and reconciles the out of bound write.
The reconciliation process is as follows:
1. Detect that no one has modified `className`/`cssText` and if so just write directly (fast path).
2. If out of bounds write did occur, switch from writing using `className`/`cssText` to `element.classList.add/remove`/`element.style[property]`.
This does require that the write function computes the difference between the previous Angular expected state and current Angular state.
(This requires a parser. The advantage of having a parser is that we can support `style="width: {{exp}}px" kind of bindings.`)
Compute the diff and apply it in non destructive way using `element.classList.add/remove`/`element.style[property]`
Properties of approach:
- If no out of bounds style modification:
- Very fast code path: Just concatenate string in right order and write them to DOM.
- Class list order is preserved
- If out of bounds style modification detected:
- Penalty for parsing
- Switch to non destructive modification: `element.classList.add/remove`/`element.style[property]`
- Switch to alphabetical way of setting classes.
PR Close#34004
Fixes Ivy detecting changes inside child embedded views, even though they're detached.
Note that there's on subtlety here: I made the changes inside `refreshDynamicEmbeddedViews` rather than `refreshView`, because we support detecting changes on a detached view (evidenced by a couple of unit tests), but only if it's triggered directly from the view's `ChangeDetectorRef`, however we shouldn't be detecting changes in the detached child view when something happens in the parent.
Fixes#34816.
PR Close#34846
It was previously defined in core without being exposed publicly, whereas `getLocaleCurrencyName` and `getLocaleCurrencySymbol` were defined in common, and publicly exposed.
This commit now privately exposes `ɵgetLocaleCurrencyCode` from core, and reexports it publicly from common.
PR Close#34810
by DebugElement.triggerEventHandler. ZoneJS tracks the eventListeners on
a node but we need to be able to differentiate between those added by
Angular and those that were added outside the Angular context. This fix
aligns with the behavior that was present in View Engine (not calling
those listeners). If we decide later that we want to call those
listeners, we still need a way to differentiate between those that
we have wrapped in dom_renderer and those that were not (because they
were added outside the Angular context).
PR Close#34514
Fixes Ivy throwing an error when trying to access the `DebugNode.classes` of an SVG element. The problem is that the `className` of an SVG element is an `SVGAnimatedString`, rather than a plain string.
Fixes#34868.
PR Close#34872
This patch removes the need for the styleSanitizer() instruction in
favor of passing the sanitizer into directly into the styleProp
instruction.
This patch also increases the binding index size for all style/class bindings in preparation for #34418
PR Close#34480
In #28162 we introduced an extra `removeNode` call for host elements which can cause the parent element to be removed before all child animations have finished. The issue is only in Ivy, because that the only place where we pass in the `isHostElement` flag. These changes fix the issue by not re-triggering the removal logic if the element has in-progress animations.
Fixes#33597.
PR Close#34702
Before ivy it was possible to configure a mutable service value
in an application initializer (by providing an `APP_INITIALIZER`)
that could be read in the provider of `LOCALE_ID`. This is a common
scenario if you wanted to load the locale id asynchronously from
an HTTP request for instance.
When using the ivy, the runtime needs to be told what the current
locale is, which is done by calling the `setLocaleId()` function with
the value injected by the `LOCALE_ID` token. Previously this was
being done before the application initializers were run, which meant
that the `LOCALE_ID` provider was being executed before the
app initializers had a chance to get a new value for it.
Now this initalization of the locale for the ivy runtime is done after the
application initializers have been run.
Closes#34701
PR Close#34830
remove unnecessary underscore suffix and the corresponding TODO comments,
because the rollup bug was fixed: github.com/rollup/rollup/issues/2047
PR Close#34757
Typescript 3.7 now emits d.ts files for getters differently than prior versions,
and there seems to be a bug in how it strips private types without replacing them
with explicit 'any' type. This then leads to compilation failures in projects compiled
against our packages that don't have skipLibCheck turned on but do have strict or
noImplicitAny check on.
I'm working around this by marking the affected getters as @internal and
adding a test to prevent future regressions.
I believe this is a TypeScript bug, and I filed a bug report:
https://github.com/microsoft/TypeScript/issues/36216
PR Close#34798
JoostK
Andrew Kushnir
Alan Agius
Misko Hevery
Joey Perrott
Pawel Kozlowski
Alex Rickabaugh
Paul Gschwendtner
Andrew Scott
crisbeto
Doug Parker
KostyaTretyak
Zac
Felix Becker
Greg Magolan
JiaLiPassion
zhuyujie
Stephen Fluin
Sonu Kapoor
George Kalpakas
cexbrayat
Matias Niemelä
Pete Bacon Darwin
Mike Casebolt
Igor Minar