org.jetbrains.kotlin.resolve.jvm.JvmDelegationFilter.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2016 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.resolve.jvm
import org.jetbrains.kotlin.builtins.KotlinBuiltIns
import org.jetbrains.kotlin.config.LanguageFeature
import org.jetbrains.kotlin.config.LanguageVersionSettings
import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
import org.jetbrains.kotlin.descriptors.Modality
import org.jetbrains.kotlin.descriptors.deserialization.PLATFORM_DEPENDENT_ANNOTATION_FQ_NAME
import org.jetbrains.kotlin.load.java.descriptors.JavaMethodDescriptor
import org.jetbrains.kotlin.resolve.DescriptorUtils
import org.jetbrains.kotlin.resolve.jvm.annotations.hasJvmDefaultAnnotation
import org.jetbrains.kotlin.resolve.lazy.DelegationFilter
object JvmDelegationFilter : DelegationFilter {
override fun filter(interfaceMember: CallableMemberDescriptor, languageVersionSettings: LanguageVersionSettings): Boolean {
if (!languageVersionSettings.supportsFeature(LanguageFeature.NoDelegationToJavaDefaultInterfaceMembers)) return true
//We always have only one implementation otherwise it's an error in kotlin and java
val realMember = DescriptorUtils.unwrapFakeOverride(interfaceMember)
return !isJavaDefaultMethod(realMember) &&
!realMember.hasJvmDefaultAnnotation() &&
!isBuiltInMemberMappedToJavaDefault(realMember)
}
private fun isJavaDefaultMethod(interfaceMember: CallableMemberDescriptor): Boolean {
return interfaceMember is JavaMethodDescriptor && interfaceMember.modality != Modality.ABSTRACT
}
private fun isBuiltInMemberMappedToJavaDefault(interfaceMember: CallableMemberDescriptor): Boolean {
return interfaceMember.modality != Modality.ABSTRACT &&
KotlinBuiltIns.isBuiltIn(interfaceMember) &&
interfaceMember.annotations.hasAnnotation(PLATFORM_DEPENDENT_ANNOTATION_FQ_NAME)
}
}