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[FIR] Handle erroneous situation with type projection in supertype

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This commit is contained in:
Dmitriy Novozhilov
2020-07-16 19:03:57 +03:00
parent c94d583e2e
commit 94ff457e43
1 changed files with 5 additions and 1 deletions
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compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/FirAbstractTreeTransformerWithSuperTypes.kt
+5 -1
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@@ -19,6 +19,7 @@ import org.jetbrains.kotlin.fir.resolve.toSymbol
import org.jetbrains.kotlin.fir.scopes.FirCompositeScope
import org.jetbrains.kotlin.fir.scopes.FirScope
import org.jetbrains.kotlin.fir.scopes.impl.*
import org.jetbrains.kotlin.fir.types.ConeClassErrorType
import org.jetbrains.kotlin.fir.types.ConeKotlinType
import org.jetbrains.kotlin.fir.types.ConeLookupTagBasedType
import org.jetbrains.kotlin.fir.visitors.CompositeTransformResult
@@ -82,6 +83,9 @@ abstract class FirAbstractTreeTransformerWithSuperTypes(
fun createSubstitutionForSupertype(superType: ConeLookupTagBasedType, session: FirSession): ConeSubstitutor {
val klass = superType.lookupTag.toSymbol(session)?.fir as? FirRegularClass ?: return ConeSubstitutor.Empty
val mapping = klass.typeParameters.map { it.symbol }.zip(superType.typeArguments.map { it as ConeKotlinType }).toMap()
val arguments = superType.typeArguments.map {
it as? ConeKotlinType ?: ConeClassErrorType("illegal projection usage")
}
val mapping = klass.typeParameters.map { it.symbol }.zip(arguments).toMap()
return ConeSubstitutorByMap(mapping)
}