org.jetbrains.kotlin.resolve.checkers.SealedInheritorInSameModuleChecker.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.resolve.checkers
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
import org.jetbrains.kotlin.descriptors.isSealed
import org.jetbrains.kotlin.diagnostics.Errors
import org.jetbrains.kotlin.psi.KtClassOrObject
import org.jetbrains.kotlin.psi.KtDeclaration
import org.jetbrains.kotlin.resolve.bindingContextUtil.getAbbreviatedTypeOrType
import org.jetbrains.kotlin.resolve.descriptorUtil.module
object SealedInheritorInSameModuleChecker : DeclarationChecker {
override fun check(declaration: KtDeclaration, descriptor: DeclarationDescriptor, context: DeclarationCheckerContext) {
if (descriptor !is ClassDescriptor || declaration !is KtClassOrObject) return
val currentModule = descriptor.module
for (superTypeListEntry in declaration.superTypeListEntries) {
val typeReference = superTypeListEntry.typeReference ?: continue
val superType = typeReference.getAbbreviatedTypeOrType(context.trace.bindingContext)?.unwrap() ?: continue
val superClass = superType.constructor.declarationDescriptor ?: continue
if (superClass.isSealed() && superClass.module != currentModule) {
context.trace.report(Errors.SEALED_INHERITOR_IN_DIFFERENT_MODULE.on(typeReference))
}
}
}
}