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/*
* Copyright 2020 Google LLC
* Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
*
* 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 com.google.devtools.ksp.symbol.impl.binary
import com.google.devtools.ksp.ExceptionMessage
import com.google.devtools.ksp.KSObjectCache
import com.google.devtools.ksp.processing.impl.KSNameImpl
import com.google.devtools.ksp.symbol.*
import com.google.devtools.ksp.symbol.impl.kotlin.KSExpectActualNoImpl
import com.google.devtools.ksp.toKSVariance
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.descriptors.PropertyDescriptor
import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
class KSTypeParameterDescriptorImpl private constructor(val descriptor: TypeParameterDescriptor) :
KSTypeParameter,
KSDeclarationDescriptorImpl(descriptor),
KSExpectActual by KSExpectActualNoImpl() {
companion object : KSObjectCache<TypeParameterDescriptor, KSTypeParameterDescriptorImpl>() {
fun getCached(descriptor: TypeParameterDescriptor) = cache.getOrPut(descriptor) {
KSTypeParameterDescriptorImpl(descriptor)
}
}
override val bounds: Sequence<KSTypeReference> by lazy {
descriptor.upperBounds.asSequence().map { KSTypeReferenceDescriptorImpl.getCached(it, origin, this) }
}
override val typeParameters: List<KSTypeParameter> = emptyList()
override val parentDeclaration: KSDeclaration? by lazy {
when (val parent = descriptor.containingDeclaration) {
is ClassDescriptor -> KSClassDeclarationDescriptorImpl.getCached(parent)
is FunctionDescriptor -> KSFunctionDeclarationDescriptorImpl.getCached(parent)
is PropertyDescriptor -> KSPropertyDeclarationDescriptorImpl.getCached(parent)
else -> throw IllegalStateException(
"Unexpected containing declaration for ${descriptor.fqNameSafe}, $ExceptionMessage"
)
}
}
override val modifiers: Set<Modifier> = emptySet()
override val isReified: Boolean by lazy {
descriptor.isReified
}
override val name: KSName by lazy {
KSNameImpl.getCached(descriptor.name.asString())
}
override val variance: Variance = descriptor.variance.toKSVariance()
override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
return visitor.visitTypeParameter(this, data)
}
}
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