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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.KSObjectCache
import com.google.devtools.ksp.memoized
import com.google.devtools.ksp.symbol.KSAnnotation
import com.google.devtools.ksp.symbol.KSNode
import com.google.devtools.ksp.symbol.KSReferenceElement
import com.google.devtools.ksp.symbol.KSType
import com.google.devtools.ksp.symbol.KSTypeReference
import com.google.devtools.ksp.symbol.KSVisitor
import com.google.devtools.ksp.symbol.Location
import com.google.devtools.ksp.symbol.Modifier
import com.google.devtools.ksp.symbol.NonExistLocation
import com.google.devtools.ksp.symbol.Origin
import com.google.devtools.ksp.symbol.impl.kotlin.IdKeyTriple
import com.google.devtools.ksp.symbol.impl.kotlin.getKSTypeCached
import org.jetbrains.kotlin.builtins.isSuspendFunctionTypeOrSubtype
import org.jetbrains.kotlin.types.AbbreviatedType
import org.jetbrains.kotlin.types.KotlinType
class KSTypeReferenceDescriptorImpl private constructor(
val kotlinType: KotlinType,
override val origin: Origin,
override val parent: KSNode?
) : KSTypeReference {
companion object : KSObjectCache<IdKeyTriple<KotlinType, Origin, KSNode?>, KSTypeReferenceDescriptorImpl>() {
fun getCached(kotlinType: KotlinType, origin: Origin, parent: KSNode?) = cache
.getOrPut(IdKeyTriple(kotlinType, origin, parent)) {
KSTypeReferenceDescriptorImpl(kotlinType, origin, parent)
}
}
private fun KotlinType.findAlias(): KotlinType =
(kotlinType as? AbbreviatedType)?.abbreviation ?: this
override val location: Location = NonExistLocation
override val element: KSReferenceElement by lazy {
KSClassifierReferenceDescriptorImpl.getCached(kotlinType.findAlias(), origin, this)
}
override val annotations: Sequence<KSAnnotation> by lazy {
kotlinType.annotations.asSequence().map { KSAnnotationDescriptorImpl.getCached(it, this) }.memoized()
}
override val modifiers: Set<Modifier> by lazy {
if (kotlinType.isSuspendFunctionTypeOrSubtype) {
setOf(Modifier.SUSPEND)
} else {
emptySet<Modifier>()
}
}
override fun resolve(): KSType {
return getKSTypeCached(kotlinType)
}
override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
return visitor.visitTypeReference(this, data)
}
override fun toString(): String {
return element.toString()
}
}
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