Refactoring the compiler to use transformers moves the code generation
after type-checking which suppresses the errors TypeScript would
generate in the user code.
`TypeChecker` currently produces the same factory code that was
generated prior the switch to transfomers, getting back the same
diagnostics as before. The refactoring will allow the code to
diverge from the factory code and allow better diagnostic error
messages than was previously possible by type-checking the factories.
These files are needed so that:
- user code can compile even without real codegen
- as tsc transformers cannot create but only change existing files
in the transformation pipeline.
This is required as e.g. `token` from `@Inject` is
accessed in string form via makeParamDecorator
but as a property in the `ReflectiveInjector`.
Closes#16889 as this is a more general fix.
Add source location as a note tag as `<note category="location">path/to/file.ts:start_line[,end_line]</note>`.
`[,end_line]` part is optional and specified only if the end line is different from the start line.
Fixes #16531
* refactor(core): provide error message in stack for reflective DI
Fixes#16355
* fix(compiler): make AOT work with `noUnusedParameters`
Fixes#15532
* refactor: use view engine also for `NgModuleFactory`s
This is a prerequisite for being able to mock providers
in AOTed code later on.
Template expressions can now use a post-fix `!` operator
that asserts the target of the operator is not null. This is
similar to the TypeScript non-null assert operator. Expressions
generated in factories will be generated with the non-null assert
operator.
Closes: #10855
This code only runs in ES5 mode in the test suite, so this is difficult to test.
However `updateFromTemplate` is being called with a spread operator, as
`...updateFromTemplate(...)`. The spread operator should fail on `null` values.
This change avoids the problem by always returning a (possibly empty) array.
PR Close#16547
This commit adds a new parameter to ngc named `missingTranslation` to set the MissingTranslationStrategy for AoT, it takes the value `error`, `warning` or `ignore`.
Fixes#15808
PR Close#15987
This only shows up in the language service. Calls to symbols
that are not resolve resulted in null instead of being resolved
causing the language service to see exceptions when the null
was not expected such as in the animations array.
Fixes#15969
- Ensure that the result passes OASIS XLIFF 2.0 schema validation
- Use <ph/> for self-closing placeholder tags
- Use <pc></pc> for other placeholder tags
- Check for the correct XLIFF file version
- Add ICU support
fixes#11735
This only shows up in the language service. Calls to symbols
that are not resolve resulted in null instead of being resolved
causing the language service to see exceptions when the null
was not expected such as in the animations array.
Fixes#15969
Allows to inherit ctor args, lifecycle hooks and statics from a class
in another compilation unit.
Will error if trying to inherit from a class in another compilation unit
that has an `@Component` / `@Directive` / `@Pipe` / `@NgModule`.
This has the side effect of allowing `@Input` and `@ContentChild`
on the same property if the query is static (see the bug description
for details).
Fixes#15417
`ngc` would look for flat module resources relative to the flat module index.
`ngc` now looks for flat module resources relative to the `.d.ts` file that declarates
the component.
Fixes#15221
PR Close#15367
This change reduces the amount of generated code by only adding `log`
calls for elements and text nodes.
We need the `log` calls to allow users to jump to the right place
in the template via source maps. However, we only need it for element
and text nodes, but not for directives, queries, … as for them we
first locate the corresponding element or text node.
Related to #15239
PR Close#15350
We extracted ids from i18n attributes but forgot to use them when merging the translations, resulting in an error about missing translations even when they were correctly defined.
Fixes#15234
PR Close#15302
If a directive has not bindings nor has a `ngDoCheck` / `ngOnInit`
lifecycle hook, don’t generate a `check` call.
This does not have an impact on the behavior, but produces
less code.
PR Close#15322
This reverts commit 8b5c6b2732.
This feature is not compatible with the `Injector.get` which now only
takes `Type` or `InjectableToken`. `Symbol` is not a valid type.
Closes#15183
PR Close#15319
Previously, a pipe that returned a `WrappedValue` would force the change
of the next bound property, independent of the binding in which the pipe
was used.
Now only the binding in which the `WrappedValue` is used will be assumed
as changed.
Fixes#15116
PR Close#15257
Closure compiler is very sensitive to top level function calls.
This commit makes the function calls `createComponentFactory`
and `createRendererTypeV2` logic-less.
Fixes#15181
PR Close#15214
DEPRECATION:
- the arguments `inputs` / `outputs` / `ngContentSelectors` of `downgradeComponent`
are no longer used as Angular calculates these automatically now.
- Compiler.getNgContentSelectors is deprecated. Use
ComponentFactory.ngContentSelectors instead.
E.g. for a component like this:
```
@Component({
template: ‘<ng-content select=“child”></ng-content>’
})
class MyComp {
@Input(‘aInputName’)
aInputProp: string;
@Output(‘aEventName’)
aOuputProp: EventEmitter<any>;
}
```
the `ComponentFactory` will now contain the following:
- `inputs = {aInputProp: ‘aInputName’}`
- `outputs = {aOutputProp: ‘aOutputName’}`
- `ngContentSelectors = [‘child’]`
Fixes:
- In G3, filePaths don’t start with a `/` and therefore became relative.
- Always using the `ng://` prefix groups angular resources in the same
way for AOT and JIT.
Inlcuded fixes:
- include preamble in generated source map
- always add a mapping for line/col 0 so that the
generated sourcemap is not sparse
- use a uniue sourceUrl for inline templates even
in the AOT case
DEPRECATION:
- the arguments `inputs` / `outputs` / `ngContentSelectors` of `downgradeComponent`
are no longer used as Angular calculates these automatically now.
- Compiler.getNgContentSelectors is deprecated. Use
ComponentFactory.ngContentSelectors instead.
E.g. for a component like this:
```
@Component({
template: ‘<ng-content select=“child”></ng-content>’
})
class MyComp {
@Input(‘aInputName’)
aInputProp: string;
@Output(‘aEventName’)
aOuputProp: EventEmitter<any>;
}
```
the `ComponentFactory` will now contain the following:
- `inputs = {aInputProp: ‘aInputName’}`
- `outputs = {aOutputProp: ‘aOutputName’}`
- `ngContentSelectors = [‘child’]`
* feat(common): support `as` syntax in template/* bindings
Closes#15020
Showing the new and the equivalent old syntax.
- `*ngIf="exp as var1”`
=> `*ngIf="exp; let var1 = ngIf”`
- `*ngFor="var item of itemsStream |async as items”`
=> `*ngFor="var item of itemsStream |async; let items = ngForOf”`
* feat(common): convert ngIf to use `*ngIf="exp as local“` syntax
* feat(common): convert ngForOf to use `*ngFor=“let i of exp as local“` syntax
* feat(common): expose NgForOfContext and NgIfContext
In v2.x, users had to annotate classes that they intended to use as tokens with `@Injectable`. This is no longer required in v4.x for tokens,
and we now require the constructor parameters of classes annotated
with `@Injectable` to be statically analyzable by ngc.
This commit reduces the error into a warning
if the constructor parameters do not meet this condition.
DEPRECATION:
- Classes annotated with `@Injectable` but whose constructor’s parameter types
are not statically analyzable by ngc will produce a warning.
Closes#15003
Currently, it says:
Unexpected value 'FuzzyTimePipe in
javascript/angular2/example/search/fuzzy_time.ts' declared by the module
'SearchModule in javascript/angular2/example/search/search_module.ts'
The new error message also suggests: 'Please add a @Pipe/@Directive/@Component annotation.'
fixes#12869fixes#12889fixes#13885fixes#13870
Before this change there was a single injector tree.
Now we have 2 injector trees, one for the modules and one for the components.
This fixes lazy loading modules.
See the design docs for details:
https://docs.google.com/document/d/1OEUIwc-s69l1o97K0wBd_-Lth5BBxir1KuCRWklTlI4
BREAKING CHANGES
`ComponentFactory.create()` takes an extra optional `NgModuleRef` parameter.
No change should be required in user code as the correct module will be used
when none is provided
DEPRECATIONS
The following methods were used internally and are no more required:
- `RouterOutlet.locationFactoryResolver`
- `RouterOutlet.locationInjector`
BREAKING CHANGE:
Perviously, any provider that had an ngOnDestroy lifecycle hook would be created eagerly.
Now, only classes that are annotated with @Component, @Directive, @Pipe, @NgModule are eager. Providers only become eager if they are either directly or transitively injected into one of the above.
This also makes all `useValue` providers eager, which
should have no observable impact other than code size.
EXPECTED IMPACT:
Making providers eager was an incorrect behavior and never documented.
Also, providers that are used by a directive / pipe / ngModule stay eager.
So the impact should be rather small.
Fixes#14552
The main use case for the generated source maps is to give
errors a meaningful context in terms of the original source
that the user wrote.
Related changes that are included in this commit:
* renamed virtual folders used for jit:
* ng://<module type>/module.ngfactory.js
* ng://<module type>/<comp type>.ngfactory.js
* ng://<module type>/<comp type>.html (for inline templates)
* error logging:
* all errors that happen in templates are logged
from the place of the nearest element.
* instead of logging error messages and stacks separately,
we log the actual error. This is needed so that browsers apply
source maps to the stack correctly.
* error type and error is logged as one log entry.
Note that long-stack-trace zone has a bug that
disables source maps for stack traces,
see https://github.com/angular/zone.js/issues/661.
BREAKING CHANGE:
- DebugNode.source no more returns the source location of a node.
Closes 14013
Tobias Bosch
Georgios Kalpakas
Alex Eagle
Chuck Jazdzewski
Andrew Mitchell
Jason Aden
Olivier Combe
Martin Probst
David
Miško Hevery
Randall Koutnik
Victor Berchet
Panuruj Khambanonda (PK)
Dzmitry Shylovich
Marc Laval
Aliaksei Kuncevic
Rob Wormald
Aliaksei Kuncevič
Filipe Silva
Jason Aden
Bowen Ni