kotlin.reflect.jvm.internal.impl.load.java.ErasedOverridabilityCondition.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2015 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.
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package kotlin.reflect.jvm.internal.impl.load.java
import kotlin.reflect.jvm.internal.impl.descriptors.CallableDescriptor
import kotlin.reflect.jvm.internal.impl.descriptors.ClassDescriptor
import kotlin.reflect.jvm.internal.impl.descriptors.SimpleFunctionDescriptor
import kotlin.reflect.jvm.internal.impl.load.java.descriptors.JavaMethodDescriptor
import kotlin.reflect.jvm.internal.impl.load.java.lazy.types.RawSubstitution
import kotlin.reflect.jvm.internal.impl.resolve.ExternalOverridabilityCondition
import kotlin.reflect.jvm.internal.impl.resolve.ExternalOverridabilityCondition.Result
import kotlin.reflect.jvm.internal.impl.resolve.OverridingUtil
class ErasedOverridabilityCondition : ExternalOverridabilityCondition {
override fun isOverridable(superDescriptor: CallableDescriptor, subDescriptor: CallableDescriptor, subClassDescriptor: ClassDescriptor?): Result {
if (subDescriptor !is JavaMethodDescriptor) return Result.UNKNOWN
var erasedSuper = superDescriptor.substitute(RawSubstitution.buildSubstitutor()) ?: return Result.UNKNOWN
if (erasedSuper is SimpleFunctionDescriptor && erasedSuper.typeParameters.isNotEmpty()) {
// Only simple functions are supported now for erased overrides
erasedSuper = erasedSuper.createCopyWithNewTypeParameters(emptyList())
}
val overridabilityResult =
OverridingUtil.DEFAULT.isOverridableByWithoutExternalConditions(erasedSuper, subDescriptor, false).result
return when (overridabilityResult) {
OverridingUtil.OverrideCompatibilityInfo.Result.OVERRIDABLE -> Result.OVERRIDABLE
else -> Result.UNKNOWN
}
}
}