It's necessary to have the sane logic that FirMemberDeclaration is a subtype of FirDeclaration
The only kind of controversial change here is making FirAnonymousObject
also be FirMemberDeclaration, thus having its own declaration status
Those modules are:
- :compiler:fir:providers, which contains Fir and Symbol providers,
scopes, and different utilities used by them
- :compiler:fir:semantics, which contains different abstractions and
entities which are used in resolution and in checkers
- :compiler:fir:resolve, which contains all stuff related to resolution
and inference
There are two pros of this change:
1. It may increase gradle build, because it allows to compile :fir:resolve
and :fir:checkers modules in parallel
2. Logic of working FIR (scopes, providers, DFA logic system, etc) is
now separated from logic of resolution phases, so for example checkers,
which are depend on scopes physically will not be able to run resolve
in any way
These two fields references the parent of the import rather than the
classes that are imported. For example
```
import java.util.Map // resolvedClassId -> null
import java.util.Map.Entry // resolvedClassId -> java.util.Map
import java.util.Map.* // resolvedClassId -> java.util.Map
import java.util.Map.someStaticMethod // resolvedClassId -> java.util.Map
import kotlin.package.someTopLevelFuntion // resolvedClassId -> null
import kotlin.package.MyObject.someObjectFuntion // resolvedClassId -> kotlin.package.MyObject
```
Previously if an unsafe call is to an overloaded function, FIR checkers
report NONE_APPLICABLE. This change instead report them as UNSAFE_CALL
or its variants.
This commit introduces several different things, in particular:
- check type arguments in expressions
- new TypeArgumentList node to deal with diagnostic source
- ConeDiagnostic was moved to fir:cones
- ConeIntermediateDiagnostic to use in inference (?) without reporting
- detailed diagnostics on error type
Before that commit we desugared `a ?: b` as
when (val elvis = a) {
null -> b
else -> elvis
}
It was incorrect, because `a` should be resolved in dependent mode,
but when it was `elvis` initializer it was resolved in independent
mode, so we can't infer type for `a` in some complex cases
Victor Petukhov