This commit bundles 3 important changes, with the goal of enabling tree-shaking
of services which are never injected. Ordinarily, this tree-shaking is prevented
by the existence of a hard dependency on the service by the module in which it
is declared.
Firstly, @Injectable() is modified to accept a 'scope' parameter, which points
to an @NgModule(). This reverses the dependency edge, permitting the module to
not depend on the service which it "provides".
Secondly, the runtime is modified to understand the new relationship created
above. When a module receives a request to inject a token, and cannot find that
token in its list of providers, it will then look at the token for a special
ngInjectableDef field which indicates which module the token is scoped to. If
that module happens to be in the injector, it will behave as if the token
itself was in the injector to begin with.
Thirdly, the compiler is modified to read the @Injectable() metadata and to
generate the special ngInjectableDef field as part of TS compilation, using the
PartialModules system.
Additionally, this commit adds several unit and integration tests of various
flavors to test this change.
PR Close#22005
All of the providers in a module get compiled into a module definition in the
factory file. Some of these providers are for the actual module types, as those
are available for injection in Angular. For tree-shakeable tokens, the runtime
needs to be able to distinguish which modules are present in an injector.
This change adds a NodeFlag which tags those module providers for later
identification.
PR Close#22005
This is a customization of the rollup_bundle rule from rules_nodejs
which adds the build-optimizer as a plugin.
Add a functional test with fast round-trip that asserts the minified app
still works.
Publish the min.js artifact on circleCI so we can track its size.
PR Close#22004
- Fix the case when first dynamic values are NO_CHANGE
- Do not store the static texts (even indexes) as bindings,
- Do not diff static texts (they do not change),
- Do not stringify static texts,
- Remove superfluous values walking.
PR Close#21881
By adding attributes on the <ng-content> element template authors
can decide how content should be re-projected (or, in other words:
which selectors should match re-projected content).
PR Close#21935
Implement NgOnChangesFeature, ViewContainerRef, TemplateRef,
and the renderEmbeddedTemplate instruction, and wire together the
pieces required for the ngForOf directive to work.
PR Close#21430
To prepare for pending ngForOf work, the dep from instructions -> query
should be broken. This will enable a dep from di -> instructions while
avoiding a di -> instructions -> query -> di cycle.
Analyzing this cycle also uncovered another problem: the implementation
of query() breaks tree-shaking through a hard dependency on DI concepts
of TemplateRef, ElementRef, ViewContainerRef. This is fundamentally due
to how query() can query for those values without any configuration.
Instead, this fix introduces the concept by employing the strategy
pattern, and redefining QueryReadType to pass a function which will
return one of the above values. This strategy is then used for 'read'
instead of an enum in cases where special values should be read from
the DI system.
PR Close#21430
assertLessThan() actually does the opposite of what it advertises.
It's only through luck that existing asserts have not failed
before. This changes assertLessThan to actually assert that the
value is less than something.
PR Close#21430
Adding the binding name to the error message recieved by the user gives
extra context on what exactly changed. The tests are also updated to
reflect the new error message.
PR Close#20352
- Improve `WrappedValue` by adding `unwrap` symetrical to `wrap`.
- remove dead code - `ValueUnwrapper`
The property `wrapped` is an implementation details and should never be accessed
directly - use `unwrap(wrappedValue)`. Will change to protected in Angular 7.
PR Close#20997
This change makes the code cleaner for the user. It does mean
a little bit more work for us since we have to patch the `type` back
into the `DirectiveDef`. However since the patching happens only once
on startup it should not be significant.
PR Close#21374
This separation is no longer needed since directives are now passed into the `container` as an array rather than as child functions of the `containerStart`
PR Close#21374
This change creates a spec file which contains canonical examples
of how the template compiler will translate templates into expected
output.
PR Close#21374
We used to have a separate `directive` instruction for instantiating
directives. However, such an instruction requires that directives
are created in the correct order, which would require that template
compiler would have knowledge of all dependent directives. This
would break template compilation locality principle.
This change only changes the APIs to expected form but does
not change the semantics. The semantics will need to be corrected
in subsequent commits. The semantic change needed is to
resolve the directive instantiation error at runtime based on
injection dependencies.
PR Close#21374
This helps ensure we use the same tsconfig.json file for all compilations.
Next steps are to make it the same tsconfig.json file used by the editor
PR Close#20964
- Add tests target for `test`, `test_node_only` and `test_web` in `core` package.
- Created a `_testing_init` pseudo package where bootstrap code for tests is kept.
- Moved `source_map_util` from `test` to `testing` so to prevent circular dependency.
- Removed `visibility:public` for testing `BUILD` packages.
PR Close#21053
`main()` function used to be needed to support dart, since dart
Does not allow top level statements. Since we no longer use dart
The need for `main()` has been removed.
In preparation for `Basel` and standardized way of running tests
we are removing `main()`
PR Close#21053
This patch fixes animations so that if multiple sub @triggers are used
and are blocked by a parent animation then the engine will not lead
itself into an infinite loop.
PR Close#21119
This PR fixes a circular dependency among those files in Renderer3:
`query` -> `di` -> `instructions` -> `query` -> ...
Looking at the above dependencies the `di` -> `instructions` import is
a problematic one. Previously `di` had an import from `instructions`
since we can known about "current node" only in `instructions`
(and we need "current node" to create node injector instances).
This commit refactors the code in the way that functions in the
`di` file don't depend on any info stored module-global variables
in `instructions`.
PR Close#20855
This allows examples to be found during aio's `yarn serve-and-sync`, which only
looks for examples in `packages/examples/<packageName>/**/*`, where
`packageName` is the name of the package that the modified file belonged to;
e.g. `core`, `common`, etc.).
Structural directives can now specify a type guard that describes
what types can be inferred for an input expression inside the
directive's template.
NgIf was modified to declare an input guard on ngIf.
After this change, `fullTemplateTypeCheck` will infer that
usage of `ngIf` expression inside it's template is truthy.
For example, if a component has a property `person?: Person`
and a template of `<div *ngIf="person"> {{person.name}} </div>`
the compiler will no longer report that `person` might be null or
undefined.
The template compiler will generate code similar to,
```
if (NgIf.ngIfTypeGuard(instance.person)) {
instance.person.name
}
```
to validate the template's use of the interpolation expression.
Calling the type guard in this fashion allows TypeScript to infer
that `person` is non-null.
Fixes: #19756?
PR Close#20702
Add enough BUILD files to make it possible to
`bazel build packages/core/test`
Also re-format BUILD.bazel files with Buildifier.
Add a CI lint check that they stay formatted.
PR Close#20768
Throwing an exception in a lifecycle event will delay but not
prevent an Init method, such as `ngOnInit`, `ngAfterContentInit`,
or `ngAfterViewInit`, from being called. Also, calling `detectChanges()`
in a way that causes duplicate change detection (such as a
child component causing a parent to call `detectChanges()` on its
own `ChangeDetectorRef`, will no longer prevent change `ngOnInit`,
`ngAfterContentInit` and `ngAfterViewInit` from being called.
With this change lifecycle methods are still not guarenteed to be
called but the Init methods will be called if at least one change
detection pass on its view is completed.
Fixes: #17035
PR Close#20258
This allows to overwrite templates for JIT and AOT components alike.
In contrast to `TestBed.overrideTemplate`, the template is compiled
in the context of the testing module, allowing to use other testing
directives.
Closes#19815
Before, as soon as a user called `TestBed.overrideProvider` for a provider
of a `NgModule` that was imported via `TestBed.configureTestingModule`,
that `NgModule` became lazy.
This commit changes this behavior to keep the `NgModule` eager,
with or without a call to `TestBed.overrideProvider`.
PR Close#19624
This allows use to fix `TestBed.overrideProvider` to keep imported `NgModule`s eager,
while allowing our users to still keep the old semantics until they have fixed their
tests.
PR Close#19558
Each node now has two index: nodeIndex and checkIndex.
nodeIndex is the index in both the view definition and the view data.
checkIndex is the index in in the update function (update directives and update
renderer).
While nodeIndex and checkIndex have the same value for now, having both of them
will allow changing the structure of view definition after compilation (ie for
runtime translations).
This is needed as:
- closure declares globals itself for minified names, which sometimes clobber our `ng` global
- we can't declare a closure extern as the namespace `ng` is already used within Google for typings for angularJS (via `goog.provide('ng....')`).
The new expression lowering lowers everything after `useValue` / `useFactory`
into a separate exported variable. If the value was a `forwardRef`, this
was passed to the runtime and resulted in errors.
This change unwraps `forwardRef`s during runtime again.
Note: we can’t unwrap the `forwardRef` into an exported variable
during compile time, as this would defeat the purpose of the
`forwardRef` in referring to something that can’t be referred to
at this position.
With this commit `ngc` is used instead of `tsc-wrapped` for
collecting metadata and tsickle rewriting and `tsc-wrapped`
is removed from the repository.
`@angular/tsc-wrapped@5` is now deprecated and is no longer
used, updated, or maintained as part as of Angular 5.x.x.
`@angular/tsc-wrapped@4` is still maintained and required by
Angular 4.x.x and will be maintained as long as 4.x.x is in
LTS.
PR Close#19298
- optimize the way node flags are propagated in `viewDef()`,
- fix `elementDef()` signature to make `namespaceAndName` nullable,
- move render parent computation with the parent computation
PR Close#19272
The private classes `ApplicationRef_`, `PlatformRef_`, `JSONPConnection_`, `JSONPBackend_`, `ClientMessageBrokerFactory_`, `ServiceMessageBroker_`, `ClientMessageBroker_` and `ServiceMessageBrokerFactory_` have been removed and merged into their public equivalents.
The size of the minified umd bundles have been slightly decreased:
| package | before | after |
| -------------------|------------|------------|
| core | 217.791 kb | 217.144 kb |
| http | 33.260 kb | 32.838 kb |
| platform-webworker | 56.015 kb | 54.933 kb |
PR Close#19143
Add testability hook to downgraded component so that protractor can wait for asynchronous call to complete.
Add unregisterApplication() and unregisterAllApplications() to testability registry for cleaning up testability and unit test.
BREAKING CHANGE: the compiler option `enableLegacyTemplate` is now disabled by default as the `<template>` element has been deprecated since v4. Use `<ng-template>` instead. The option `enableLegacyTemplate` and the `<template>` element will both be removed in Angular v6.
PR Close#18756
* Remove now unnecessary portions of build.
* Add a compilePackageES5 method to build ES5 from sources
* Rework all package.json and rollup config files to new format
* Remove "extends" from tsconfig-build.json files and fixup compilation roots
PR Close#18541
BREAKING CHANGE: `NgFor` has been removed as it was deprecated since v4. Use `NgForOf` instead. This does not impact the use of`*ngFor` in your templates.
PR Close#18758
Prior to this fix if @parent and @child animations ran at the same
time within a disabled region then there was a chance that a @child
sub animation would never complete. This would cause *directives to
never close a removal when a @child trigger was placed on them. This
patch fixes this issue.
PR Close#18715
Prior to fix this fix, @.disabled would only work to disable child
animations. Now it will also disable animations for the element that has
the @.disabled flag (which makes more sense).
PR Close#18714
BREAKING CHANGE: `DifferFactory.create` no longer takes ChangeDetectionRef as a first argument as it was not used and deprecated since v4.
PR Close#18757
After this, neither @angular/compiler nor @angular/comnpiler-cli depend
on @angular/core.
This add a duplication of some interfaces and enums which is stored
in @angular/compiler/src/core.ts
BREAKING CHANGE:
- `@angular/platform-server` now additionally depends on
`@angular/platform-browser-dynamic` as a peer dependency.
PR Close#18683
This change allows users to specify multiple exportAs names for a
directive by giving a comma-delimited list inside the string.
The primary motivation for this change is to allow these names to be
changed in a backwards compatible way.
toString() from DefaultIterableDiffer is only used in tests and should not
be part of the production code. toString() methods from differs add
~ 0.3KB (min+gzip) to the production bundle size.
BREAKING CHANGE
It is no longer possible to declare classes in this format.
```
Component({...}).
Class({
constructor: function() {...}
})
```
This format would only work with JIT and with ES5. This mode doesn’t
allow build tools like Webpack to process and optimize the code, which
results in prohibitively large bundles. We are removing this API
because we are trying to ensure that everyone is on the fast path by
default, and it is not possible to get on the fast path using the ES5
DSL. The replacement is to use TypeScript and `@Decorator` format.
```
@Component({...})
class {
constructor() {...}
}
```
This change allows ReflectiveInjector to be tree shaken resulting
in not needed Reflect polyfil and smaller bundles.
Code savings for HelloWorld using Closure:
Reflective: bundle.js: 105,864(34,190 gzip)
Static: bundle.js: 154,889(33,555 gzip)
645( 2%)
BREAKING CHANGE:
`platformXXXX()` no longer accepts providers which depend on reflection.
Specifically the method signature when from `Provider[]` to
`StaticProvider[]`.
Example:
Before:
```
[
MyClass,
{provide: ClassA, useClass: SubClassA}
]
```
After:
```
[
{provide: MyClass, deps: [Dep1,...]},
{provide: ClassA, useClass: SubClassA, deps: [Dep1,...]}
]
```
NOTE: This only applies to platform creation and providers for the JIT
compiler. It does not apply to `@Compotent` or `@NgModule` provides
declarations.
Benchpress note: Previously Benchpress also supported reflective
provides, which now require static providers.
DEPRECATION:
- `ReflectiveInjector` is now deprecated as it will be remove. Use
`Injector.create` as a replacement.
closes#18496
Angular can make many assumptions about its event handlers. As a result
the bookkeeping for native addEventListener is significantly cheaper
than Zone's addEventLister which can't make such assumptions.
This change bypasses the Zone's addEventListener if present and always
uses the native addEventHandler. As a result registering event listeners
is about 3 times faster.
PR Close#18107
In previous version of tsickle abstract class methods were materialized.
The change resulted in 6Kb savings in angular.io bundle.
This change also required the removal of `@private` and `@return` type
annotation as it is explicitly dissalowed by tsickle.
NOTE: removed casts in front of `makeDecorator` due to:
https://github.com/angular/devkit/issues/45
```
14938 Jul 19 13:16 0.b19e913fbdd6507d346b.chunk.js
1535 Jul 19 13:16 inline.d8e019ea3cfdd86c2bd0.bundle.js
589178 Jul 19 13:16 main.54c97bcb6f254776b678.bundle.js
34333 Jul 19 13:16 polyfills.4a3c9ca9481d53803157.bundle.js
14938 Jul 18 16:55 0.b19e913fbdd6507d346b.chunk.js
1535 Jul 18 16:55 inline.0c83abb44fad9a2768a7.bundle.js
582786 Jul 18 16:55 main.ea290db71b051813e156.bundle.js
34333 Jul 18 16:55 polyfills.4a3c9ca9481d53803157.bundle.js
main savings: 589178 - 582786 = 6,392
```
PR Close#18236
In Node.JS console.log/error/warn functions actually resuls in a socket
write which in turn is considered by Zone.js as an async task.
This means that if there is any exception during change detection in a platform-server
application the error handler will make the Angular Zone unstable which
in turn will cause change detection to run on next tick and cause an
infinite loop.
It is also better to run the error handler outside of the Angular Zone
in general on all platforms so that an error in the error handler itself doesn't cause an
infinite loop.
Fixes#17073, #7774.
PR Close#18269
Note 4.3 only!
Prior to this fix when [@.disabled] was used in a component that
contained zero animation code it wouldn't register properly because the
renderer associated with that component was not an animation renderer.
This patch ensures that it gets registered even when there are no
animations set.
Alex Eagle
Victor Berchet
Matias Niemelä
Kara Erickson
Miško Hevery
guillaumebarranco
Kara
Alex Rickabaugh
Emilio
Martin Sikora
JiaLi.Passion
Chuck Jazdzewski
Pawel Kozlowski
Jason Aden
David-Emmanuel Divernois
Marc Laval
harunurhan
Xander Garbett
Benjamin Ingberg
Brian Douglas
George Kalpakas
Olivier Combe
Yuan Gao
Juri Strumpflohner
Martin Hobert
Fabian Wiles
Tobias Bosch
Hans Larsen
Alex Eagle
Yi Qi
Vikram Subramanian
Jeremy Elbourn
Daniel Kucal
Trotyl