org.jetbrains.kotlin.library.metadata.KlibMetadataClassDataFinder.kt Maven / Gradle / Ivy
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Common klib metadata reader and writer
/*
* Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.library.metadata
import org.jetbrains.kotlin.descriptors.SourceElement
import org.jetbrains.kotlin.metadata.ProtoBuf.PackageFragment
import org.jetbrains.kotlin.metadata.deserialization.NameResolver
import org.jetbrains.kotlin.name.ClassId
import org.jetbrains.kotlin.serialization.deserialization.ClassData
import org.jetbrains.kotlin.serialization.deserialization.ClassDataFinder
import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedContainerSource
import org.jetbrains.kotlin.serialization.deserialization.getClassId
class KlibMetadataClassDataFinder(
private val fragment: PackageFragment,
private val nameResolver: NameResolver,
private val containerSource: DeserializedContainerSource? = null
) : ClassDataFinder {
val nameList = fragment.getExtension(KlibMetadataProtoBuf.className).orEmpty()
override fun findClassData(classId: ClassId): ClassData? {
val index = nameList.indexOfFirst { nameResolver.getClassId(it) == classId }
if (index == -1) {
return null
}
val foundClass = fragment.getClass_(index) ?: error("Could not find data for serialized class $classId")
/* TODO: binary version supposed to be read from protobuf. */
return ClassData(nameResolver, foundClass, KlibMetadataVersion.INSTANCE, containerSource ?: SourceElement.NO_SOURCE)
}
}