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• IrVisibilityUtil.kt

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org.jetbrains.kotlin.ir.overrides.IrVisibilityUtil.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.ir.overrides

import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
import org.jetbrains.kotlin.ir.declarations.IrDeclarationWithVisibility
import org.jetbrains.kotlin.ir.declarations.IrOverridableDeclaration
import org.jetbrains.kotlin.ir.util.parentClassOrNull

val IrDeclarationWithVisibility.isNonPrivate: Boolean
    get() = visibility == DescriptorVisibilities.PUBLIC
            || visibility == DescriptorVisibilities.PROTECTED
            || visibility == DescriptorVisibilities.INTERNAL

fun IrDeclarationWithVisibility.isEffectivelyPrivate(): Boolean {
    return when {
        isNonPrivate -> parentClassOrNull?.isEffectivelyPrivate() ?: false

        visibility == DescriptorVisibilities.INVISIBLE_FAKE -> {
            val overridesOnlyPrivateDeclarations = (this as? IrOverridableDeclaration<*>)
                ?.overriddenSymbols
                ?.all { (it.owner as? IrDeclarationWithVisibility)?.isEffectivelyPrivate() == true }
                ?: false

            overridesOnlyPrivateDeclarations || (parentClassOrNull?.isEffectivelyPrivate() ?: false)
        }

        else -> true
    }
}