Previously, it wasn't possible to compile template that contains pipe in context of ternary operator `{{ 1 ? 2 : 0 | myPipe }}` due to the error `Error: Illegal state: Pipes should have been converted into functions. Pipe: async`.
This PR fixes a typo in expression parser so that pipes are correctly converted into functions.
PR Close#28635
Prior to this change in Ivy we had strict check that disabled non-unique #localRefs usage within a given template. While this limitation was technically present in View Engine, in many cases View Engine neglected this restriction and as a result, some apps relied on a fact that multiple non-unique #localRefs can be defined and utilized to query elements via @ViewChild(ren) and @ContentChild(ren). In order to provide better compatibility with View Engine, this commit removes existing restriction.
As a part of this commit, are few tests were added to verify VE and Ivy compatibility in most common use-cases where multiple non-unique #localRefs were used.
PR Close#28627
Prior to this change there was no i18n id sanitization before we output goog.getMsg calls. Due to the fact that message ids are used as a part of const names, some characters were bcausing issues while executing generated code. This commit adds sanitization to i18n ids used to generate i18n-related consts.
PR Close#28522
Note that this fixes `compiler-cli` tests within `compiler-cli/test`,
but there seem to be remaining `ngcc` tests within `compiler-cli/src`
which aren't working on Windows. This is out-of-scope for this commit.
PR Close#28352
Currently the "ngtsc` testing helpers resolve the `fake_core` NPM
package using the `TEST_SRCDIR` variable. This is problematic on Windows
where Bazel runfiles are not symlinked into the runfiles directory.
In order to properly resolve the NPM Bazel tree artifact, we use the
`resolveTreeNpmArtifact` runfile helper that properly resolves the artifact
properly on all platforms.
PR Close#28352
In order to support running "compiler-cli" tests that use the "test_support.ts"
utilities on Windows with Bazel, we need to imporve the logic that resolves NPM
packages and symlinks them into a temporary directory.
A more Bazel idiomatic and windows compatible way of resolving Bazel runfiles
is to use the "RUNFILES_MANIFEST" if present. This ensures that the NPM
packages can be also symlinked on Windows, and tests can execute properly
on Windows. Read more about why this is needed here:
* https://github.com/bazelbuild/bazel/issues/3726#issue-257062364
PR Close#28352
Since we recently removed the `test.sh` script, and now run
all tests with Bazel, we can remove the unused logic that makes
compiler-cli tests pass in non-Bazel.
This cleans up the tests, and also makes it easier to write tests
without worrying about two ways of the Angular package output
(Bazel `ng_package` rules vs. old `build.sh` logic of building)
PR Close#28352
In View Engine, we supported @Input and @ContentChild annotations
on the same property. This feature was somewhat brittle because
it would only work for static queries, so it would break if a
content child was passed in wrapped in an *ngIf. Due to the
inconsistent behavior and low usage both internally and externally,
we will likely be deprecating it in the next version, and it does
not make sense to perpetuate it in Ivy.
This commit ensures that we now throw in Ivy if we encounter the
two annotations on the same property.
PR Close#28415
Prior to this change we may encounter some errors (like pipes being used where they should not be used) while compiling Host Bindings and Listeners. With this update we move validation logic to the analyze phase and throw an error if something is wrong. This also aligns error messages between Ivy and VE.
PR Close#28356
The TypeTranslatorVisitor visitor returned strings because before it wasn't possible to transform declaration files directly through the TypeScript custom transformer API.
Now that's possible though, so it should return nodes instead.
PR Close#28342
The current DtsFileTransformer works by intercepting file writes and editing the source string directly.
This PR refactors it as a afterDeclaration transform in order to fit better in the TypeScript API.
This is part of a greater effort of converting ngtsc to be usable as a TS transform plugin.
PR Close#28342
Prior to this change contentQueriesRefresh functions that represent refresh logic for @ContentQuery list were not composable, which caused problems in case one Directive inherits another one and both of them contain Content Queries. Due to the fact that we used indices to reference queries in refresh function, results were placed into wrong Queries. In order to avoid that we no longer use indices to reference queries and instead maintain current content query index while iterating through them. This allows us to compose contentQueriesRefresh functions and make inheritance feature work with Content Queries.
PR Close#28324
Currently `compileNgModule` generates an empty array for optional fields that are omitted from an `NgModule` declaration (e.g. `bootstrap`, `exports`). This isn't necessary, because `defineNgModule` has some code to default these fields to empty arrays at runtime if they aren't defined. The following changes will only output code if there are values for the particular field.
PR Close#28387
By its nature, Ivy alters the import graph of a TS program, adding imports
where template dependencies exist. For example, if ComponentA uses PipeB
in its template, Ivy will insert an import of PipeB into the file in which
ComponentA is declared.
Any insertion of an import into a program has the potential to introduce a
cycle into the import graph. If for some reason the file in which PipeB is
declared imports the file in which ComponentA is declared (maybe it makes
use of a service or utility function that happens to be in the same file as
ComponentA) then this could create an import cycle. This turns out to
happen quite regularly in larger Angular codebases.
TypeScript and the Ivy runtime have no issues with such cycles. However,
other tools are not so accepting. In particular the Closure Compiler is
very anti-cycle.
To mitigate this problem, it's necessary to detect when the insertion of
an import would create a cycle. ngtsc can then use a different strategy,
known as "remote scoping", instead of directly writing a reference from
one component to another. Under remote scoping, a function
'setComponentScope' is called after the declaration of the component's
module, which does not require the addition of new imports.
FW-647 #resolve
PR Close#28169
Prior to this change the postprocess step relied on the order of placeholders combined in one group (e.g. [�#1�|�*1:1�]). The order is not guaranteed in case we have nested templates (since we use BFS to process templates) and some tags are represented using same placeholders. This change performs postprocessing more accurate by keeping track of currently active template and searching for matching placeholder.
PR Close#28209
Prior to this change `viewQuery` functions that represent @ViewQuery list were not composable, which caused problems in case one Component/Directive inherits another one and both of them contain View Queries. Due to the fact that we used indices to reference queries, resulting query set was corrupted (child component queries were overridden by super class ones). In order to avoid that we no longer use indices assigned at compile time and instead maintain current view query index while iterating through them. This allows us to compose `viewQuery` functions and make inheritance feature work with View Queries.
PR Close#28309
- Wraps the NgOnChangesFeature in a factory such that no side effects occur in the module root
- Adds comments to ngInherit property on feature definition interface to help guide others not to make the same mistake
- Updates compiler to generate the feature properly after the change to it being a factory
- Updates appropriate tests
PR Close#28187
Fixes the template generation function generating an incorrect tag name when the element has a namespace (e.g. `:svg:circle` gets generated rather than `circle`).
PR Close#28298
This commit uses the NgModuleRouteAnalyzer introduced previously to
implement listLazyRoutes() for NgtscProgram. Currently this implementation
is limited to listing routes globally and cannot list routes for a given lazy
module. Testing seems to indicate that the CLI uses the global form, but this
should be verified.
Jira issue: FW-629
PR Close#27697
This commit introduces a new mode for the NgtscTestEnvironment which
builds the NgtscProgram and then asks for the list of lazy routes,
instead of running the TS emit phase.
PR Close#27697
This commit introduces the NgModuleRouteAnalyzer & friends, which given
metadata about the NgModules in a program can extract the list of lazy
routes in the same format that the ngtools API uses.
PR Close#27697
`ngtsc` currently fails building a flat module out file on Windows because it generates an invalid flat module TypeScript source file. e.g:
```ts
5 export * from './C:\Users\Paul\Desktop\test\src\export';
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
This is because `path.posix.relative` does not properly with non-posix paths, and only expects posix paths in order to work.
PR Close#27993
Users might have run the CSS Preprocessor tool *before* the Angular
compiler. For example, we do it that way under Bazel. This means that
the design-time reference is different from the compile-time one - the
input to the Angular compiler is a plain .css file.
We assume that the preprocessor does a trivial 1:1 mapping using the same
basename with a different extension.
PR Close#28166
Due to the fact that animations in Angular are defined in the component metadata,
all animation trigger definitions are localized to the component and are
inaccessible outside of it. Animation host listeners in Ivy are
rendered in the context of the parent component, but the VE renders them
differently. This patch ensures that animation host listeners are
always registered in the sub component's renderer
Jira issue: FW-943
Jira issue: FW-958
PR Close#28210
In Ivy when elements are created a series of static attribute names are provided
over to the construction instruction of that element. Static attribute names
include non-binding attribues (like `<div selected>`) as well as animation bindings
that do not have a RHS value (like `<div @foo>`). Because of this distinction,
value-less animation triggers are rendered first before value-full animation
bindings are and this improper ordering has caused various existing tests to fail.
This patch ensures that animation bindings are evaluated in the order that they
exist within the HTML template code (or host binding code).
PR Close#28165
With the refactoring or how styles/classes are implmented in Ivy,
interpolation has caused the binding code to mess up since interpolation
itself takes up its own slot in Ivy's memory management code. This patch
makes sure that interpolation works as expected with class and style
bindings.
Jira issue: FW-944
PR Close#28190
Prior to this change element's i18n attributes like "i18n-title" were processed after "i18n" ones that placed "i18n" and "i18nAttributes" instructions in wrong order, thus "i18nAttributes" failed to target its host element at runtime. This change updates processing order and puts "i18nAttributes" instructions in front of "i18n" ones to resolve the problem.
PR Close#28163
This code was throwing if the `deps` array of a provider has several elements, but at the next line it resolves them... With this check `ngtsc` couldn’t compile `ng-bootstrap` for example.
PR Close#28076
Up until this point, all static attribute values (things like `title` and `id`)
defined within the `host` are of a Component/Directive definition were
generated into a `def.attributes` array and then processed at runtime.
This design decision does not lend itself well to tree-shaking and is
inconsistent with other static values such as styles and classes.
This fix ensures that all static attribute values (attributes, classes,
and styles) that exist within a host definition for components and
directives are all assigned via the `elementHostAttrs` instruction.
```
// before
defineDirective({
...
attributes: ['title', 'my title']
...
})
//now
defineDirective({
...
hostBindings: function() {
if (create) {
elementHostAttrs(..., ['title', 'my-title']);
}
...
}
...
})
```
PR Close#28089
This update aligns Ivy behavior with ViewEngine related to empty bindings (for example <div [someProp]></div>): empty bindings are ignored.
PR Close#28059
ngtsc has a hack to add @nocollapse jsdoc annotations to generated static
fields. This hack is currently broken (likely due to a TypeScript change
in the way writeFile() works).
This commit fixes the hack and introduces an ngtsc_spec test to ensure it
does not regress again.
PR Close#28050
Libraries that create components dynamically using component factories,
such as `@angular/upgrade` need to pass blocks of projected content
through to the `ComponentFactory.create()` method. These blocks
are extracted from the content by matching CSS selectors defined in
`<ng-content select="..">` tags found in the component's template.
The Angular compiler collects these CSS selectors when compiling a component's
template, and exposes them via the `ComponentFactory.ngContentSelectors`
property.
This change ensures that this property is filled correctly when the
component factory is created by compiling a component with the Ivy engine.
PR Close#27867
Prior to this change Component decorator was resolving `encapsulation` value a bit incorrectly, which resulted in `encapsulation: NaN` in compiled code. Now we resolve the value as Enum memeber and throw if it's not the case. As a part of this update, the `changeDetection` field handling is also added, the resolution logic is the same as the one used for `encapsulation` field.
PR Close#27971
Generated factory shims can import from @angular/core. However, we have
special logic in place to rewrite self-imports when generating code for
@angular/core.
This commit leverages the new standalone ImportRewriter interface to
properly rewrite imports in generated factory shims. Before this fix,
a generated factory file for core would look like:
```typescript
import * as i0 from './r3_symbols';
export var ApplicationModuleNgFactory = new ɵNgModuleFactory(...);
```
This is invalid, as ɵNgModuleFactory is just NgModuleFactory when imported
via r3_symbols.
FW-881 #resolve
PR Close#27998
This commit adds sanitization for `elementProperty` and `elementAttribute` instructions used in `hostBindings` function, similar to what we already have in the `template` function. Main difference is the fact that for some attributes (like "href" and "src") we can't define which SecurityContext they belong to (URL vs RESOURCE_URL) in Compiler, since information in Directive selector may not be enough to calculate it. In order to resolve the problem, Compiler injects slightly different sanitization function which detects proper Security Context at runtime.
PR Close#27939
Previously, ngtsc would assume that a given directive/pipe being imported
from an external package was importable using the same name by which it
was declared. This isn't always true; sometimes a package will export a
directive under a different name. For example, Angular frequently prefixes
directive names with the 'ɵ' character to indicate that they're part of
the package's private API, and not for public consumption.
This commit introduces the TsReferenceResolver class which, given a
declaration to import and a module name to import it from, can determine
the exported name of the declared class within the module. This allows
ngtsc to pick the correct name by which to import the class instead of
making assumptions about how it was exported.
This resolver is used to select a correct symbol name when creating an
AbsoluteReference.
FW-517 #resolve
FW-536 #resolve
PR Close#27743
This commit adds tracking of modules, directives, and pipes which are made
visible to consumers through NgModules exported from the package entrypoint.
ngtsc will now produce a diagnostic if such classes are not themselves
exported via the entrypoint (as this is a requirement for downstream
consumers to use them with Ivy).
To accomplish this, a graph of references is created and populated via the
ReferencesRegistry. Symbols exported via the package entrypoint are compared
against the graph to determine if any publicly visible symbols are not
properly exported. Diagnostics are produced for each one which also show the
path by which they become visible.
This commit also introduces a diagnostic (instead of a hard compiler crash)
if an entrypoint file cannot be correctly determined.
PR Close#27743
This update introduces support for global object (window, document, body) listeners, that can be defined via host listeners on Components and Directives.
PR Close#27772
Previously, there could be identical template/listener function names
for a component's template, if it had multiple similarly structured
nested sub-templates or listeners.
This resulted in build errors:
`Identifier '<SOME_IDENTIFIER>' has already been declared`
This commit fixes this by ensuring that the template index is included
in the `contextName` passed to the `TemplateDefinitionBuilder`
responsible for processing nested sub-templates.
Similarly, the template or element index is included in the listener
names.
PR Close#27766
Alexey Zuev
Andrew Kushnir
Paul Gschwendtner
Kara Erickson
cexbrayat
Filipe Silva
Kristiyan Kostadinov
Alex Rickabaugh
Ben Lesh
Alex Eagle
Matias Niemelä
Pete Bacon Darwin
Marc Laval
George Kalpakas