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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.kotlin
import com.google.devtools.ksp.KSObjectCache
import com.google.devtools.ksp.symbol.KSAnnotation
import com.google.devtools.ksp.symbol.KSDeclaration
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.getInstanceForCurrentRound
class KSTypeReferenceDeferredImpl private constructor(
private val resolver: () -> KSType,
override val parent: KSNode?
) : KSTypeReference {
companion object : KSObjectCache<KSDeclaration, KSTypeReferenceDeferredImpl>() {
fun getCached(parent: KSDeclaration, resolver: () -> KSType): KSTypeReferenceDeferredImpl {
val currentParent = parent.getInstanceForCurrentRound() as KSDeclaration
return cache
.getOrPut(currentParent) { KSTypeReferenceDeferredImpl(resolver, currentParent) }
}
}
override val origin = Origin.KOTLIN
override val location: Location = NonExistLocation
override val annotations: Sequence<KSAnnotation> = emptySequence()
override val element: KSReferenceElement? = null
override val modifiers: Set<Modifier> = emptySet()
private val resolved: KSType by lazy {
resolver()
}
override fun resolve(): KSType = resolved
override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
return visitor.visitTypeReference(this, data)
}
override fun toString(): String {
return resolved.toString()
}
}
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