See doNotCaptureSupertype test for clarification:
When resolving b.collect(toList()) we're building a common system with
two variables T and R.
The problem was that when introducing the constraint
C<T, Inv<T>> <: C<in String, R> we then were seeing the constraint
T <= in String, and add the constaint T=Captured(in String)
That lead to R=Inv<T>=Inv<Captured(in String)>, and after approximation
R=Inv<in String>, that is not the desirable result (Inv<String> suits here)
But the root problem was that we add captured constaint when projection was from supertype,
that seems to be wrong, and for example Java doesn't do that in the similar situation.
#KT-11259 Fixed
Inferred type of receiver of orElse is Optional<T & Any>
Generic descriptor is orElse(E!): E!
Substituted descriptor is orElse(T): T , and that is the problem.
Seems that E! => (T & Any)! gets expanded to just T or T & Any , however it should be expanded to
(T & Any) .. (T & Any)? => T & Any .. T & Any
T & Any is NotNullTypeParameter(T)
The problem is that (T & Any)? is expanded to T & Any,
that is seems to be wrong.
#KT-15236 Fixed
- In tests on built-ins with no sources, just call
JvmResolve.analyze(environment) and inspect the resulting module
- In AbstractLocalClassProtoTest, create container via
TDAForJVM.createContainer
- Inline single module container creation into AbstractDiagnosticsTest
- Document what exactly should findPackageParts return
- Make EMPTY a named object instead of a val in the companion
- Do not use JvmPackagePartProvider in tests where Empty works fine
- Add a couple default values to arguments of setupResolverForProject
Do not treat members with already changed signature as a reason
to create a hidden copy
See tests for clarification:
- There are `charAt` method in B that has different name in Kotlin - `get`,
i.e. relevant descriptor has initialSignatureDescriptor != null
- When collecting methods from supertypes, `charAt` from A is also get
transformed to `get`
- So it has effectively the same signature as B.get (already declared)
- If by an accident B.get had been declared with Kotlin signature
we would have add A.charAt (after transformation) with special flag:
HiddenToOvercomeSignatureClash (hides it from resolution)
- But here B.charAt was artificially changed to `get`, so no signature clash
actually happened
#KT-13730 Fixed
- First parameter should have type of K instead of Any
- Special bridge should return second parameter if a key has wrong type
- Special bridge may throw an exception if defaultValue has wrong type
#KT-13209 Fixed
Introduce LanguageFeatureSettings, instance of which should be injected by the
container and be accessible everywhere during the compilation (front-end and
back-end).
Parameters of LanguageFeatureSettings are unused in this commit, will be used
later
- White list: can be used as common built-in declaration
- Black list: can be used only for overrides and super-calls-
- Not considered members: ones that is not in black or white list.
Such members can be used in any context, but they usages marked as deprecated
Third kind is needed to make possible use declarations added in future JDK versions.
Deprecation is necessary because they may get into black list in next Kotlin compiler version
