kotlin.reflect.jvm.internal.KTypeParameterImpl.kt Maven / Gradle / Ivy
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Kotlin Full Reflection Library
/*
* 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 kotlin.reflect.jvm.internal
import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
import org.jetbrains.kotlin.descriptors.runtime.components.ReflectKotlinClass
import org.jetbrains.kotlin.load.kotlin.JvmPackagePartSource
import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedMemberDescriptor
import org.jetbrains.kotlin.types.Variance
import org.jetbrains.kotlin.utils.addToStdlib.safeAs
import kotlin.jvm.internal.TypeParameterReference
import kotlin.reflect.KType
import kotlin.reflect.KTypeParameter
import kotlin.reflect.KVariance
internal class KTypeParameterImpl(
container: KTypeParameterOwnerImpl?,
override val descriptor: TypeParameterDescriptor,
) : KTypeParameter, KClassifierImpl {
override val name: String
get() = descriptor.name.asString()
override val upperBounds: List by ReflectProperties.lazySoft { descriptor.upperBounds.map(::KTypeImpl) }
override val variance: KVariance
get() = when (descriptor.variance) {
Variance.INVARIANT -> KVariance.INVARIANT
Variance.IN_VARIANCE -> KVariance.IN
Variance.OUT_VARIANCE -> KVariance.OUT
}
override val isReified: Boolean
get() = descriptor.isReified
private val container: KTypeParameterOwnerImpl = container ?: run {
when (val declaration = descriptor.containingDeclaration) {
is ClassDescriptor -> {
declaration.toKClassImpl()
}
is CallableMemberDescriptor -> {
val callableContainerClass = when (val callableContainer = declaration.containingDeclaration) {
is ClassDescriptor -> {
callableContainer.toKClassImpl()
}
else -> {
val deserializedMember = declaration as? DeserializedMemberDescriptor
?: throw KotlinReflectionInternalError("Non-class callable descriptor must be deserialized: $declaration")
deserializedMember.getContainerClass().kotlin as KClassImpl<*>
}
}
declaration.accept(CreateKCallableVisitor(callableContainerClass), Unit)
}
else -> throw KotlinReflectionInternalError("Unknown type parameter container: $declaration")
}
}
private fun ClassDescriptor.toKClassImpl(): KClassImpl<*> =
toJavaClass()?.kotlin as KClassImpl<*>?
?: throw KotlinReflectionInternalError("Type parameter container is not resolved: $containingDeclaration")
private fun DeserializedMemberDescriptor.getContainerClass(): Class<*> =
containerSource.safeAs()?.knownJvmBinaryClass.safeAs()?.klass
?: throw KotlinReflectionInternalError("Container of deserialized member is not resolved: $this")
override fun equals(other: Any?) =
other is KTypeParameterImpl && container == other.container && name == other.name
override fun hashCode() =
container.hashCode() * 31 + name.hashCode()
override fun toString() =
TypeParameterReference.toString(this)
}