org.jetbrains.kotlin.fir.analysis.checkers.declaration.FirOpenMemberChecker.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2021 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.KtFakeSourceElementKind
import org.jetbrains.kotlin.KtRealSourceElementKind
import org.jetbrains.kotlin.KtSourceElement
import org.jetbrains.kotlin.descriptors.ClassKind
import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
import org.jetbrains.kotlin.fir.analysis.checkers.hasModifier
import org.jetbrains.kotlin.diagnostics.DiagnosticReporter
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
import org.jetbrains.kotlin.diagnostics.reportOn
import org.jetbrains.kotlin.fir.declarations.FirCallableDeclaration
import org.jetbrains.kotlin.fir.declarations.FirClass
import org.jetbrains.kotlin.fir.declarations.FirConstructor
import org.jetbrains.kotlin.fir.declarations.utils.isOpen
import org.jetbrains.kotlin.lexer.KtTokens
object FirOpenMemberChecker : FirClassChecker() {
override fun check(declaration: FirClass, context: CheckerContext, reporter: DiagnosticReporter) {
if (declaration.canHaveOpenMembers) return
for (memberDeclaration in declaration.declarations) {
if (memberDeclaration !is FirCallableDeclaration ||
// Marking a constructor `open` is an error covered by diagnostic code WRONG_MODIFIER_TARGET
memberDeclaration is FirConstructor
) continue
val source = memberDeclaration.source ?: continue
if (memberDeclaration.isOpen || memberDeclaration.hasModifier(KtTokens.OPEN_KEYWORD) && source.shouldReportOpenFromSource) {
if (declaration.classKind == ClassKind.OBJECT) {
reporter.reportOn(source, FirErrors.NON_FINAL_MEMBER_IN_OBJECT, context)
} else {
reporter.reportOn(source, FirErrors.NON_FINAL_MEMBER_IN_FINAL_CLASS, context)
}
}
}
}
private val KtSourceElement.shouldReportOpenFromSource: Boolean
get() = when (kind) {
KtRealSourceElementKind,
KtFakeSourceElementKind.PropertyFromParameter -> true
else -> false
}
}