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[FIR] Support determining emptiness of an intersection type with type parameters' types

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This commit is contained in:
Victor Petukhov
2022-04-05 17:19:06 +03:00
committed by teamcity
parent 313da6f41e
commit 47d6236a2d
97 changed files with 1970 additions and 106 deletions
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compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/components/ResolutionParts.kt
+3 -5
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@@ -26,9 +26,7 @@ import org.jetbrains.kotlin.resolve.scopes.receivers.ReceiverValueWithSmartCastI
import org.jetbrains.kotlin.resolve.scopes.utils.parentsWithSelf
import org.jetbrains.kotlin.types.*
import org.jetbrains.kotlin.types.error.ErrorUtils
import org.jetbrains.kotlin.types.model.KotlinTypeMarker
import org.jetbrains.kotlin.types.model.TypeConstructorMarker
import org.jetbrains.kotlin.types.model.typeConstructor
import org.jetbrains.kotlin.types.model.*
import org.jetbrains.kotlin.types.typeUtil.*
import org.jetbrains.kotlin.utils.SmartList
import org.jetbrains.kotlin.utils.addToStdlib.cast
@@ -903,12 +901,12 @@ internal object CheckContextReceiversResolutionPart : ResolutionPart() {
internal object CheckIncompatibleTypeVariableUpperBounds : ResolutionPart() {
override fun ResolutionCandidate.process(workIndex: Int) = with(getSystem().asConstraintSystemCompleterContext()) {
val typeVariables = getSystem().getBuilder().currentStorage().notFixedTypeVariables.values
val typeVariables = getSystem().getBuilder().currentStorage().notFixedTypeVariables.values.takeIf { it.isNotEmpty() } ?: return
for (variableWithConstraints in typeVariables) {
val upperTypes = variableWithConstraints.constraints.extractUpperTypes()
if (upperTypes.isEmptyIntersection()) {
if (upperTypes.computeEmptyIntersectionTypeKind().isDefinitelyEmpty()) {
val isInferredEmptyIntersectionForbidden =
callComponents.languageVersionSettings.supportsFeature(LanguageFeature.ForbidInferringTypeVariablesIntoEmptyIntersection)