org.jetbrains.kotlin.fir.analysis.checkers.declaration.FirEnumClassSimpleChecker.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.descriptors.ClassKind
import org.jetbrains.kotlin.fir.FirSourceElement
import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
import org.jetbrains.kotlin.fir.analysis.checkers.findNonInterfaceSupertype
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 FirEnumClassSimpleChecker : FirMemberDeclarationChecker() {
override fun check(declaration: FirMemberDeclaration, context: CheckerContext, reporter: DiagnosticReporter) {
if (declaration !is FirClass<*> || declaration.classKind != ClassKind.ENUM_CLASS) {
return
}
declaration.findNonInterfaceSupertype(context)?.let {
reporter.reportClassInSupertypeForEnum(it.source)
}
if (declaration.typeParameters.isNotEmpty()) {
reporter.reportTypeParametersInEnum(declaration.typeParameters.firstOrNull()?.source)
}
}
private fun DiagnosticReporter.reportClassInSupertypeForEnum(source: FirSourceElement?) {
source?.let { report(FirErrors.CLASS_IN_SUPERTYPE_FOR_ENUM.on(it)) }
}
private fun DiagnosticReporter.reportTypeParametersInEnum(source: FirSourceElement?) {
source?.let { report(FirErrors.TYPE_PARAMETERS_IN_ENUM.on(it)) }
}
}