org.jetbrains.kotlin.descriptors.Modality.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.descriptors
import org.jetbrains.kotlin.resolve.DescriptorUtils
// For sealed classes, isOverridable is false but isOverridableByMembers is true
enum class Modality {
// THE ORDER OF ENTRIES MATTERS HERE
FINAL,
// NB: class can be sealed but not function or property
SEALED,
OPEN,
ABSTRACT;
companion object {
// NB: never returns SEALED
fun convertFromFlags(abstract: Boolean, open: Boolean): Modality {
if (abstract) return ABSTRACT
if (open) return OPEN
return FINAL
}
}
}
val CallableMemberDescriptor.isOverridable: Boolean
get() = modality != Modality.FINAL && (containingDeclaration as? ClassDescriptor)?.isFinalClass != true
val CallableMemberDescriptor.isOverridableOrOverrides: Boolean
get() = isOverridable || DescriptorUtils.isOverride(this)
val ClassDescriptor.isFinalClass: Boolean
get() = modality == Modality.FINAL && kind != ClassKind.ENUM_CLASS
val ClassDescriptor.isFinalOrEnum: Boolean
get() = modality == Modality.FINAL