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FIR: report SMARTCAST_IMPOSSIBLE on inherited alien properties [KT-48101]

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This commit is contained in:
Tianyu Geng
2021-08-12 16:00:25 -07:00
committed by TeamCityServer
parent 0a6e51e47f
commit fb1eac0985
11 changed files with 120 additions and 12 deletions
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compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/VariableStorage.kt
+3 -1
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@@ -15,6 +15,8 @@ import org.jetbrains.kotlin.fir.declarations.impl.FirDefaultPropertyAccessor
import org.jetbrains.kotlin.fir.declarations.utils.modality
import org.jetbrains.kotlin.fir.expressions.*
import org.jetbrains.kotlin.fir.expressions.impl.FirNoReceiverExpression
import org.jetbrains.kotlin.fir.originalIfFakeOverride
import org.jetbrains.kotlin.fir.originalOrSelf
import org.jetbrains.kotlin.fir.references.FirThisReference
import org.jetbrains.kotlin.fir.resolve.fullyExpandedType
import org.jetbrains.kotlin.fir.resolve.toSymbol
@@ -184,7 +186,7 @@ class VariableStorage(private val session: FirSession) {
property.isVar -> PropertyStability.MUTABLE_PROPERTY
property.receiverTypeRef != null -> PropertyStability.PROPERTY_WITH_GETTER
property.getter.let { it != null && it !is FirDefaultPropertyAccessor } -> PropertyStability.PROPERTY_WITH_GETTER
property.moduleData.session != session -> PropertyStability.ALIEN_PUBLIC_PROPERTY
property.originalOrSelf().moduleData.session != session -> PropertyStability.ALIEN_PUBLIC_PROPERTY
property.modality != Modality.FINAL -> {
val dispatchReceiver = (originalFir.unwrapElement() as? FirQualifiedAccess)?.dispatchReceiver ?: return null
val receiverType = dispatchReceiver.typeRef.coneTypeSafe<ConeClassLikeType>()?.fullyExpandedType(session) ?: return null