MT stands for "modularized tests"
^KT-64166 Fixed
Review: https://jetbrains.team/p/kt/reviews/13517/timeline
This commit fixes:
java.lang.IllegalArgumentException: Local <local>/<anonymous> should never be used to find its corresponding classifier
at org.jetbrains.kotlin.fir.resolve.providers.impl.FirProviderImpl.getFirClassifierByFqName(FirProviderImpl.kt:252)
at org.jetbrains.kotlin.fir.resolve.providers.impl.FirProviderImpl$SymbolProvider.getClassLikeSymbolByClassId(FirProviderImpl.kt:60)
at org.jetbrains.kotlin.fir.resolve.providers.impl.FirCachingCompositeSymbolProvider.computeClass(FirCachingCompositeSymbolProvider.kt:131)
at org.jetbrains.kotlin.fir.resolve.providers.impl.FirCachingCompositeSymbolProvider.access$computeClass(FirCachingCompositeSymbolProvider.kt:27)
at org.jetbrains.kotlin.fir.resolve.providers.impl.FirCachingCompositeSymbolProvider$special$$inlined$createCache$1.invoke(FirCachesFactory.kt:75)
at org.jetbrains.kotlin.fir.resolve.providers.impl.FirCachingCompositeSymbolProvider$special$$inlined$createCache$1.invoke(FirCachesFactory.kt:69)
at org.jetbrains.kotlin.fir.caches.FirThreadUnsafeCache.getValue(FirThreadUnsafeCachesFactory.kt:40)
at org.jetbrains.kotlin.fir.resolve.providers.impl.FirCachingCompositeSymbolProvider.getClassLikeSymbolByClassId(FirCachingCompositeSymbolProvider.kt:158)
at org.jetbrains.kotlin.fir.resolve.transformers.mpp.FirExpectActualResolver.findExpectForActual(FirExpectActualResolver.kt:41)
Static scope is checked first during resolution
(scopes are in reverse order).
This fixes a difference between how K1 and K2 resolve annotations.
#KT-63249 Fixed
With the directory structure similar to one of a multiplatform library,
where each source set sources are placed into the directory
named after this source set.
Do not use legacy projects for building relative paths
Gradle copies capabilities from the variants of the root artifacts
to the variants of leaf artifacts which leads to capability conflict
when both root and leaf artifacts are present in a configuration during
variant-based dependency resolution
With capabilities in variants it is possible to depend on multiple variants of
an artifact in the same target compilation. These variants can implement
different common source sets which all should be visible from that target.
Instead of intersecting single variant source sets visible from different
targets, first union source sets from all target variant dependencies
and only then intersect these union results from different targets.
Previously when unsigned arrays were passed as vararg in a named form the necessary spread element wasn't generated, which resulted in a compilation error.
^KT-63514 fixed
This commit solves a stub type inconsistency problem.
As a part of KT-59369 fix we decided (see commit 299d2799),
that ConeStubTypeForChainInference has a scope of Any,
so we can safely resolve only to equals/hashCode/toString.
However, later we can replace a stub type with some inferred type,
which can have its own equals/hashCode/toString implementation,
while the call still refers Any member.
In this situation FIR2IR decides that we are calling a fake override,
which is not true, in fact we are calling an overriding method.
This leads to a crash in Native backend.
To solve this situation, we provide an explicit cast of a dispatch
receiver with a stub type (ConeStubTypeForChainInference) to Any,
thus confirming directly we are calling Any method and nothing else.
#KT-63932 Fixed
- The symbol provider may additionally provide function types, so we
have to compose its symbol names provider with the synthetic function
type symbol names provider.
- The null symbol names provider knows nothing about the names provided
by its symbol provider, so it also has to assume that the symbol
provider can provide a synthetic function type.
- This inconsistency has not caused an issue so far because
`mayHaveTopLevelClassifier` is also overridden, and
`mayHaveSyntheticFunctionType` is not used outside that context.
- Previously, only callable package name sets were implemented, because
the compiler cannot economically compute classifier package sets for
libraries. This has not changed. However, the K2 IntelliJ plugin and
standalone Analysis API can very easily compute classifier package
sets. Hence, this commit adds support to `FirSymbolNamesProvider` for
such sets.
- Similar to callable package sets, classifier package sets (1) improve
the memory usage of symbol names providers and (2) improve the
performance of `mayHaveTopLevelClassifier`, which is a significant
bottleneck in the IDE.
- In many cases, the package sets for callables and classifiers are the
same. For example, the IDE Kotlin declaration provider computes the
set of packages that contain any classifier and/or callable, for the
following reasons: (1) indexing package names without filtering for
declarations is much faster, (2) computing separate sets is not free
both in time and memory, and (3) the performance impact of having a
more narrow set for callables is expected to be negligible. For this
reason, `FirSymbolNamesProvider.getPackageNames` exists to provide a
shared package set.
- The `hasSpecific*PackageNamesComputation` properties are required to
avoid caching the same package set in cached symbol names providers
twice. Because these properties are constant, they can be checked very
quickly, and no time has to be wasted trying a specific package set
computation to find out whether it's supported.
### IDE Performance Results
Package set construction performance improved in the IDE in multiple
benchmarks. This improves the performance of symbol providers overall,
which has a direct impact on completion, code analysis, and Find Usages.
In a local manual run of the `intellij_commit/setUp` Find Usages
performance test, the total time spent in `getClassLikeSymbolByClassId`
improved from ~18.7s to ~11.2s. Due to parallel resolve, this does not
translate to a wall clock improvement of 7 seconds, but rather of a few
seconds.
Some performance tests improved markedly in warmup, with for example
`toolbox_enterprise/genUuid` Find Usages having an improvement in
`StubBasedFirDeserializedSymbolProvider.getClassLikeSymbolByClassId`
from 2.4s to 0.2s. This has a direct impact on the first-run performance
of the tested Find Usages command.
So far, classifier package sets in the IDE are only implemented for
libraries, and library sessions are cached after the first warmup.
Because the biggest impact of classifier package sets is avoiding
computation of "class names in package" sets, the impact of this
optimization is not accurately reflected in the timings reported by our
performance tests. `toolbox_enterprise/genUuid` above is a good example,
as the warmup timings are great, but after warmup,
`StubBasedFirDeserializedSymbolProvider.getClassLikeSymbolByClassId`
improved only from 150ms to 70ms.
`toolbox_enterprise/genUuid` is another example, as we can confidently
say that the first-run Find Usages performance has improved (which makes
a difference for the user), but it is unclear by how much, as warmup is
not measured in performance tests.
The same optimization for source sessions will be easier to measure, as
source sessions are invalidated after each performance test run. This
commit lays the groundwork for that as well, because source session
support only requires the requisite package set computation in the
IDE declaration provider to be implemented.
^KT-62553 fixed
Nikita Bobko