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package com.google.devtools.ksp.symbol.impl.synthetic
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.processing.impl.findAnnotationFromUseSiteTarget
import com.google.devtools.ksp.symbol.KSAnnotated
import com.google.devtools.ksp.symbol.KSAnnotation
import com.google.devtools.ksp.symbol.KSName
import com.google.devtools.ksp.symbol.KSNode
import com.google.devtools.ksp.symbol.KSTypeReference
import com.google.devtools.ksp.symbol.KSValueParameter
import com.google.devtools.ksp.symbol.KSVisitor
import com.google.devtools.ksp.symbol.Location
import com.google.devtools.ksp.symbol.NonExistLocation
import com.google.devtools.ksp.symbol.Origin
import com.google.devtools.ksp.symbol.impl.binary.KSAnnotationDescriptorImpl
import com.google.devtools.ksp.symbol.impl.binary.KSTypeReferenceDescriptorImpl
import org.jetbrains.kotlin.descriptors.ValueParameterDescriptor
import org.jetbrains.kotlin.resolve.calls.components.hasDefaultValue
import org.jetbrains.kotlin.resolve.calls.components.isVararg
class KSValueParameterSyntheticImpl(val owner: KSAnnotated?, resolve: () -> ValueParameterDescriptor?) :
KSValueParameter {
companion object :
KSObjectCache<Pair<KSAnnotated?, () -> ValueParameterDescriptor?>, KSValueParameterSyntheticImpl>() {
fun getCached(owner: KSAnnotated? = null, resolve: () -> ValueParameterDescriptor?) =
KSValueParameterSyntheticImpl.cache.getOrPut(Pair(owner, resolve)) {
KSValueParameterSyntheticImpl(owner, resolve)
}
}
private val descriptor by lazy {
resolve() ?: throw IllegalStateException("Failed to resolve for synthetic value parameter, $ExceptionMessage")
}
override val name: KSName? by lazy {
KSNameImpl.getCached(descriptor.name.asString())
}
override val type: KSTypeReference by lazy {
KSTypeReferenceDescriptorImpl.getCached(descriptor.type, origin, this)
}
override val isVararg: Boolean = descriptor.isVararg
override val isNoInline: Boolean = descriptor.isNoinline
override val isCrossInline: Boolean = descriptor.isCrossinline
override val isVal: Boolean = !descriptor.isVar
override val isVar: Boolean = descriptor.isVar
override val hasDefault: Boolean = descriptor.hasDefaultValue()
override val annotations: Sequence<KSAnnotation> by lazy {
descriptor.annotations.asSequence()
.map { KSAnnotationDescriptorImpl.getCached(it, this) }.plus(this.findAnnotationFromUseSiteTarget())
}
override val origin: Origin = Origin.SYNTHETIC
override val location: Location = NonExistLocation
override val parent: KSNode? = owner
override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
return visitor.visitValueParameter(this, data)
}
override fun toString(): String {
return name?.asString() ?: "_"
}
}
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