org.jetbrains.kotlin.fir.java.scopes.JavaOverridabilityRules.kt Maven / Gradle / Ivy

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/*
 * Copyright 2010-2022 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.java.scopes

import org.jetbrains.kotlin.fir.FirSession
import org.jetbrains.kotlin.fir.declarations.FirCallableDeclaration
import org.jetbrains.kotlin.fir.declarations.FirDeclarationOrigin
import org.jetbrains.kotlin.fir.declarations.FirProperty
import org.jetbrains.kotlin.fir.declarations.FirSimpleFunction
import org.jetbrains.kotlin.fir.java.JavaTypeParameterStack
import org.jetbrains.kotlin.fir.scopes.PlatformSpecificOverridabilityRules
import org.jetbrains.kotlin.fir.unwrapFakeOverrides

class JavaOverridabilityRules(session: FirSession) : PlatformSpecificOverridabilityRules {
    private val javaOverrideChecker =
        JavaOverrideChecker(session, JavaTypeParameterStack.EMPTY, baseScopes = null, considerReturnTypeKinds = true)

    override fun isOverriddenFunction(overrideCandidate: FirSimpleFunction, baseDeclaration: FirSimpleFunction): Boolean? {
        if (!overrideCandidate.isFromJava() || !baseDeclaration.isFromJava()) return null

        return javaOverrideChecker.isOverriddenFunction(overrideCandidate, baseDeclaration)
    }

    override fun isOverriddenProperty(overrideCandidate: FirCallableDeclaration, baseDeclaration: FirProperty): Boolean? {
        if (!overrideCandidate.isFromJava() || !baseDeclaration.isFromJava()) return null

        return javaOverrideChecker.isOverriddenProperty(overrideCandidate, baseDeclaration)
    }

    private fun FirCallableDeclaration.isFromJava(): Boolean = unwrapFakeOverrides().origin == FirDeclarationOrigin.Enhancement
}