Previously the ngtsc ShimGenerator interface expected that all shims would
be generated using the contents of existing ts.SourceFiles. This assumption
was true for ngfactory and ngsummary files, but breaks down for flat module
index files, which are standalone.
This commit prepares for flat module index generation by enabling shim
generators which don't require an existing file.
PR Close#27497
While generating attributes for `projection` instruction, we checked whether attribute name is equal to 'select' in lower case. However in other cases we treat 'select' attribute name as case-insensitive. This PR makes 'select' attribute consistently case-insensitive.
PR Close#27500
Prior to this change, animation properties were defined as element attributes, which caused errors at runtime. Now all animation-related attributes are defined as element properties.
Also as a part of this update, we start to account for bindings used in animations, which was previously missing.
PR Close#27496
Analogously to directives, the `ngInjectableDef` field in .d.ts files is
annotated with the type of service that it represents. If the service
contains required generic type arguments, these must be included in
the .d.ts file.
PR Close#27037
Common insensitive platforms are `win32/win64` (see:
[here](3e4c5c95ab/src/compiler/sys.ts (L681-L682)))
Currently when running `bazel build packages/core --define=compile=aot`, the `compiler-cli` will throw because it cannot find the `index.ngfactory.ts` file in the compiler host. This is because the shim host wrapper is not properly generating the requested `ngfactory` file.
This happens because we call `getCanonicalFileName` that returns a path that is different to the actual program filenames that are used to construct a map of generated files. Since the generators always use the paths which are not "canonical" and pases them internally like that, we can just stop manually calling `getCanonicalFileName`.
PR Close#27466
ngfactory files have a ɵNonEmptyModule constant included if there are no
other exported factory symbols. Previously this extra export was added
dynamically in a TS transformer.
However, synthetically constructed exports don't get properly downleveled
during JS emit, and this generated constant caused issues with downstream
tests.
Instead, this commit configures the shim to always have this export to
begin with, and to filter it out if it's not required.
Testing strategy: covered by existing ngtsc_spec tests which verify the
presence of the ɵNonEmptyModule symbol.
PR Close#27483
In ngtsc, files loaded into the ts.Program have a "module name", set via
ts.SourceFile.moduleName, which ends up being written into an AMD module
name triple-slash directive in the generated .js file.
For generated shim files (ngfactories, ngsummaries) that are constructed
synthetically, there was previously no moduleName set, which caused some
issues with downstream tests.
This commit adds logic to compute and set moduleNames for both generated
ngfactory and ngsummary shims.
PR Close#27483
A previous fix to ngtsc opened the door for duplicate directives in
the 'directives' array of a component. This would happen if the directive
was declared in a module which was imported more than once within the
component's module.
This commit adds deduplication when the component's scope is materialized,
so declarations which arrive via more than one module import are coalesced.
PR Close#27462
The method `ts.CompilerHost.directoryExists` is optional, and was not
previously handled by our ts.CompilerHost wrapper for factory and
summary shims (GeneratedShimsHostWrapper).
TypeScript checks for the existence of this method and silently ignores
things like typeRoots if it's not found. This commit adds proper handling
of directoryExists() to the shim.
A test is also added which verifies typeRoots behavior works when shims
are enabled.
PR Close#27470
Previously the ngfactory shim generator in ngtsc would always write two
imports in the factory file shims:
1) an import to @angular/core
2) an import to the base file
If the base file has no exports, import #2 would be empty. This turns out
to cause issues downstream.
This commit changes the generated shim so if there are no exports in the
base file, the generated shim is empty too.
PR Close#27470
PR #27404 introduced additional test case to make sure we generate `elementStyling` instructions with proper set of arguments (first argument was missing in some cases). It looks like that PR was created before we updated host vars count calculation and the `allocHostVars` becomes unnecessary in the test cases introduced in PR #27404. This commit actualizes this test to get rid of unnecessary `allocHostVars` instruction.
PR Close#27473
The logic that generates first argument for the `elementStyling` instruction was missing the check that directive expression is specified. As a result, in some cases first argument was not added, thus making function invocation incorrect. Now the presence of directive expression is taken into account and the `null` expression is generated as needed.
PR Close#27404
Prior to this change `projectDef` instructions were placed to root templates only, thus the necessary information (selectors) in nested templates was missing. This update adds the logic to insert `projectDef` instructions to all templates where <ng-content> is present.
PR Close#27384
Previously ngtsc assumed resource files (templateUrl, styleUrls) would be
physically present in the file system relative to the .ts file which
referenced them. However, ngc previously resolved such references in the
context of ts.CompilerOptions.rootDirs. Material depends on this
functionality in its build.
This commit introduces resolution of resources by leveraging the TypeScript
module resolver, ts.resolveModuleName(). This resolver is used in a way
which will never succeed, but on failure will return a list of locations
checked. This list is then filtered to obtain the correct potential
locations of the resource.
PR Close#27357
This commit adds support for resolution of styleUrls to ngtsc. Previously
this field was never read, and so components with styleUrls would appear
unstyled after compilation.
PR Close#27357
When a single resource is preloaded twice in ngtsc, the second request
would be recognized as in-flight in which case `undefined` would
be returned, which signals to the compilation that is can resume
synchronously. The compilation would then proceed immediately and call
`load`, only to find out that the request is still in-flight which is
not allowed.
This commit caches the Promise of the in-flight fetch requests, such
that subsequent preload requests can return the corresponding Promise
instance.
PR Close#27357
* Currently when building a `ng_module` with Bazel and having the flat module id option set, the flat module files are not being generated because `@angular/compiler-cli` does not properly determine the entry-point file.
Note that this logic is not necessarily specific to Bazel and the same problem can happen without Bazel if multiple TypeScript input files are specified while the `flatModuleIndex` option has been enabled.
PR Close#27200
For ngcc's processing of ES5 bundles, the spread syntax has been
downleveled from `[...ARRAY]` to become `ARRAY.slice()`. This commit
adds basic support for static resolution of such call.
PR Close#27158
The problem was caused by missing `allocateBindingSlots` that led to incorrect # of vars defined for components and as a result, causing errors at runtime. Now all `bind` operation are accounted for and the number of `vars` is correct.
PR Close#27338
The problem was caused by the self-closing i18n instruction that was generated in case we have styling instructions defined for a component. As a result, that caused problems at runtime. This update adds extra check to avoid creating self-closing i18n instructions (create i18nStart and i18nEnd instructions instead) when styling instructions are present.
PR Close#27330
Ngcc will now render additional exports for classes that are referenced in
`NgModule` decorated classes, but which were not publicly exported
from an entry-point of the package.
This is important because when ngtsc compiles libraries processed by ngcc
it needs to be able to publcly access decorated classes that are referenced
by `NgModule` decorated classes in order to build templates that use these
classes.
Doing this re-exporting is not without its risks. There are chances that
the class is not exported correctly: there may already be similarly named
exports from the entry-point or the class may be being aliased. But there
is not much more we can do from the point of view of ngcc to workaround
such scenarios. Generally, packages should have been built so that this
approach works.
PR Close#26906
There are a number of variables that need to be passed around
the program, in particular to the renderers, which benefit from being
stored in well defined objects.
The new `EntryPointBundle` structure is a specific format of an entry-point
and contains the compiled `BundleProgram` objects for the source and typings,
if appropriate.
This change helps with future refactoring, where we may need to add new
properties to this object. It allows us to maintain more stable APIs between
the constituent parts of ngcc, rather than passing lots of primitive values
around throughout the program.
PR Close#26906
The `NgModuleDecoratorHandler` can now register all the references that
it finds in the `NgModule` metadata, such as `declarations`, `imports`,
`exports` etc.
This information can then be used by ngcc to work out if any of these
references are internal only and need to be manually exported from a
library's entry-point.
PR Close#26906
By inverting the relationship between `EntryPointPaths` and
`EntryPointFormat` we can have interfaces rather than types.
Thanks to @gkalpak for this idea.
PR Close#26906
If a decorated class is not publicly exported via an entry-point then the
previous approach to finding the associated typings file failed.
Now we ensure that we extract all the class declarations from the
dtsTypings program, even if they are not exported from the entry-point.
This is achieved by also parsing statements of each source file, rather
than just parsing classes that are exported from the entry-point.
Because we now look at all the files, it is possible for there to be multiple
class declarations with the same local name. In this case, only the first
declaration with a given name is added to the map; subsequent classes are
ignored.
We are most interested in classes that are publicly exported from the
entry-point, so these are added to the map first, to ensure that they are
not ignored.
PR Close#26906
Previously the concept of multiple directives with the same selector was
not supported by ngtsc. This is due to the treatment of directives for a
component as a Map from selector to the directive, which is an erroneous
representation.
Now the directives for a component are stored as an array which supports
multiple directives with the same selector.
Testing strategy: a new ngtsc_spec test asserts that multiple directives
with the same selector are matched on an element.
PR Close#27298
These tests are not relevant to Ivy:
//packages/compiler-cli/test/diagnostics:check_types
//packages/compiler-cli/test/diagnostics:expression_diagnostics
//packages/compiler-cli/test/transformers:test
//packages/compiler-cli/test:extract_i18n
The //packages/compiler-cli/test:ngtools_api test has 2 specs, one of
which passes and the other of which depends on ngtsc supporting lazy
routes. It's now disabled with fixmeIvy().
PR Close#27301
These paths are no longer needed / used.
I had to disable one jit mode spec because it fails now that we actually run it.
I root caused the jit test failure as missing forwardRef support. See FW-645.
PR Close#27278
When ngtsc compiles @angular/core, it rewrites core imports to the
r3_symbols.ts file that exposes all internal symbols under their
external name. When creating the FESM bundle, the r3_symbols.ts file
causes the external symbol names to be rewritten to their internal name.
Under ngcc compilations of FESM bundles, the indirection of
r3_symbols.ts is no longer in place such that the external names are
retained in the bundle. Previously, the external name `ɵdefineNgModule`
was explicitly declared internally to resolve this issue, but the
recently added `setClassMetadata` was not declared as such, causing
runtime errors.
Instead of relying on the r3_symbols.ts file to perform the rewrite of
the external modules to their internal variants, the translation is
moved into the `ImportManager` during the compilation itself. This
avoids the need for providing the external name manually.
PR Close#27055
Now that the Ivy switch transform uses ts.getMutableClone() to copy
statements, there's no need to set .parent pointers on the resulting
updated nodes. Doing this was causing assertion failures deep in
TypeScript in some cases.
PR Close#27170
Alex Rickabaugh
Andrew Kushnir
JoostK
Kara Erickson
Paul Gschwendtner
Ben Lesh
Misko Hevery
Pete Bacon Darwin
Igor Minar
Marc Laval
Olivier Combe