org.jetbrains.kotlin.fir.analysis.checkers.declaration.FirDelegationInInterfaceChecker.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.fir.analysis.checkers.declaration
import org.jetbrains.kotlin.KtNodeTypes
import org.jetbrains.kotlin.descriptors.ClassKind
import org.jetbrains.kotlin.fir.FirSourceElement
import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
import org.jetbrains.kotlin.fir.analysis.diagnostics.DiagnosticReporter
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
import org.jetbrains.kotlin.fir.declarations.FirClass
import org.jetbrains.kotlin.fir.declarations.FirMemberDeclaration
object FirDelegationInInterfaceChecker : FirMemberDeclarationChecker() {
override fun check(declaration: FirMemberDeclaration, context: CheckerContext, reporter: DiagnosticReporter) {
if (declaration !is FirClass<*> || declaration.classKind != ClassKind.INTERFACE) {
return
}
for (superTypeRef in declaration.superTypeRefs) {
val source = superTypeRef.source ?: continue
if (source.treeStructure.getParent(source.lighterASTNode)?.tokenType == KtNodeTypes.DELEGATED_SUPER_TYPE_ENTRY) {
reporter.report(source)
}
}
}
private fun DiagnosticReporter.report(source: FirSourceElement?) {
source?.let { report(FirErrors.DELEGATION_IN_INTERFACE.on(it)) }
}
}