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/*
* Copyright 2010-2018 JetBrains s.r.o. 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.metadata.jvm.deserialization
import org.jetbrains.kotlin.metadata.deserialization.BinaryVersion
import org.jetbrains.kotlin.metadata.deserialization.NameResolverImpl
import org.jetbrains.kotlin.metadata.deserialization.isKotlin1Dot4OrLater
import org.jetbrains.kotlin.metadata.jvm.JvmModuleProtoBuf
import java.io.*
class ModuleMapping private constructor(
val packageFqName2Parts: Map,
val moduleData: BinaryModuleData,
private val debugName: String
) {
fun findPackageParts(packageFqName: String): PackageParts? {
return packageFqName2Parts[packageFqName]
}
override fun toString() = debugName
companion object {
const val MAPPING_FILE_EXT: String = "kotlin_module"
@JvmField
val EMPTY: ModuleMapping = ModuleMapping(emptyMap(), BinaryModuleData(emptyList()), "EMPTY")
@JvmField
val CORRUPTED: ModuleMapping = ModuleMapping(emptyMap(), BinaryModuleData(emptyList()), "CORRUPTED")
const val STRICT_METADATA_VERSION_SEMANTICS_FLAG = 1 shl 0
fun loadModuleMapping(
bytes: ByteArray?,
debugName: String,
skipMetadataVersionCheck: Boolean,
isJvmPackageNameSupported: Boolean,
reportIncompatibleVersionError: (JvmMetadataVersion) -> Unit
): ModuleMapping {
if (bytes == null) {
return EMPTY
}
val stream = DataInputStream(ByteArrayInputStream(bytes))
val versionNumber = try {
IntArray(stream.readInt()) { stream.readInt() }
} catch (e: IOException) {
return CORRUPTED
}
val preVersion = JvmMetadataVersion(*versionNumber)
if (!skipMetadataVersionCheck && !preVersion.isCompatible()) {
reportIncompatibleVersionError(preVersion)
return EMPTY
}
// Since Kotlin 1.4, we write integer flags between the version and the proto
val flags = if (isKotlin1Dot4OrLater(preVersion)) stream.readInt() else 0
val version = JvmMetadataVersion(versionNumber, (flags and STRICT_METADATA_VERSION_SEMANTICS_FLAG) != 0)
if (!skipMetadataVersionCheck && !version.isCompatible()) {
reportIncompatibleVersionError(version)
return EMPTY
}
val moduleProto = JvmModuleProtoBuf.Module.parseFrom(stream) ?: return EMPTY
val result = linkedMapOf()
for (proto in moduleProto.packagePartsList) {
val packageFqName = proto.packageFqName
val packageParts = result.getOrPut(packageFqName) { PackageParts(packageFqName) }
for ((index, partShortName) in proto.shortClassNameList.withIndex()) {
val multifileFacadeId = proto.multifileFacadeShortNameIdList.getOrNull(index)?.minus(1)
val facadeShortName = multifileFacadeId?.let(proto.multifileFacadeShortNameList::getOrNull)
val facadeInternalName = facadeShortName?.let { internalNameOf(packageFqName, it) }
packageParts.addPart(internalNameOf(packageFqName, partShortName), facadeInternalName)
}
if (isJvmPackageNameSupported) {
for ((index, partShortName) in proto.classWithJvmPackageNameShortNameList.withIndex()) {
val packageId = proto.classWithJvmPackageNamePackageIdList.getOrNull(index)
?: proto.classWithJvmPackageNamePackageIdList.lastOrNull()
?: continue
val jvmPackageName = moduleProto.jvmPackageNameList.getOrNull(packageId) ?: continue
packageParts.addPart(internalNameOf(jvmPackageName, partShortName), null)
}
}
}
for (proto in moduleProto.metadataPartsList) {
val packageParts = result.getOrPut(proto.packageFqName) { PackageParts(proto.packageFqName) }
proto.shortClassNameList.forEach(packageParts::addMetadataPart)
}
// TODO: read arguments of module annotations
val nameResolver = NameResolverImpl(moduleProto.stringTable, moduleProto.qualifiedNameTable)
val annotations = moduleProto.annotationList.map { proto -> nameResolver.getQualifiedClassName(proto.id) }
return ModuleMapping(result, BinaryModuleData(annotations), debugName)
}
}
}
private fun internalNameOf(packageFqName: String, className: String): String =
if (packageFqName.isEmpty()) className
else packageFqName.replace('.', '/') + "/" + className
class PackageParts(val packageFqName: String) {
// JVM internal name of package part -> JVM internal name of the corresponding multifile facade (or null, if it's not a multifile part)
private val packageParts = linkedMapOf()
val parts: Set get() = packageParts.keys
// Short names of .kotlin_metadata package parts
val metadataParts: Set = linkedSetOf()
fun addPart(partInternalName: String, facadeInternalName: String?) {
packageParts[partInternalName] = facadeInternalName
}
fun removePart(internalName: String) {
packageParts.remove(internalName)
}
fun addMetadataPart(shortName: String) {
(metadataParts as MutableSet /* see KT-14663 */).add(shortName)
}
fun addTo(builder: JvmModuleProtoBuf.Module.Builder) {
if (parts.isNotEmpty()) {
builder.addPackageParts(JvmModuleProtoBuf.PackageParts.newBuilder().apply {
packageFqName = [email protected]
val packageInternalName = packageFqName.replace('.', '/')
val (partsWithinPackage, partsOutsidePackage) = parts.partition { partInternalName ->
partInternalName.packageName == packageInternalName
}
writePartsWithinPackage(partsWithinPackage)
writePartsOutsidePackage(partsOutsidePackage, builder)
})
}
if (metadataParts.isNotEmpty()) {
builder.addMetadataParts(JvmModuleProtoBuf.PackageParts.newBuilder().apply {
packageFqName = [email protected]
addAllShortClassName(metadataParts.sorted())
})
}
}
private fun JvmModuleProtoBuf.PackageParts.Builder.writePartsWithinPackage(parts: List) {
val facadeNameToId = mutableMapOf()
for ((facadeInternalName, partInternalNames) in parts.groupBy { getMultifileFacadeName(it) }.toSortedMap(nullsLast())) {
for (partInternalName in partInternalNames.sorted()) {
addShortClassName(partInternalName.className)
if (facadeInternalName != null) {
addMultifileFacadeShortNameId(1 + facadeNameToId.getOrPut(facadeInternalName.className) { facadeNameToId.size })
}
}
}
for ((facadeId, facadeName) in facadeNameToId.values.zip(facadeNameToId.keys).sortedBy(Pair::first)) {
assert(facadeId == multifileFacadeShortNameCount) { "Multifile facades are loaded incorrectly: $facadeNameToId" }
addMultifileFacadeShortName(facadeName)
}
}
// Writes information about package parts which have a different JVM package from the Kotlin package (with the help of @JvmPackageName)
private fun JvmModuleProtoBuf.PackageParts.Builder.writePartsOutsidePackage(
parts: List,
packageTableBuilder: JvmModuleProtoBuf.Module.Builder
) {
val packageIds = mutableListOf()
for ((packageInternalName, partsInPackage) in parts.groupBy { it.packageName }.toSortedMap()) {
val packageFqName = packageInternalName.replace('/', '.')
if (packageFqName !in packageTableBuilder.jvmPackageNameList) {
packageTableBuilder.addJvmPackageName(packageFqName)
}
val packageId = packageTableBuilder.jvmPackageNameList.indexOf(packageFqName)
for (part in partsInPackage.map { it.className }.sorted()) {
addClassWithJvmPackageNameShortName(part)
packageIds.add(packageId)
}
}
// See PackageParts#class_with_jvm_package_name_package_id in jvm_module.proto for description of this optimization
while (packageIds.size > 1 && packageIds[packageIds.size - 1] == packageIds[packageIds.size - 2]) {
packageIds.removeAt(packageIds.size - 1)
}
addAllClassWithJvmPackageNamePackageId(packageIds)
}
private val String.packageName: String get() = substringBeforeLast('/', "")
private val String.className: String get() = substringAfterLast('/')
fun getMultifileFacadeName(partInternalName: String): String? = packageParts[partInternalName]
operator fun plusAssign(other: PackageParts) {
for ((partInternalName, facadeInternalName) in other.packageParts) {
addPart(partInternalName, facadeInternalName)
}
other.metadataParts.forEach(this::addMetadataPart)
}
override fun equals(other: Any?) =
other is PackageParts &&
other.packageFqName == packageFqName && other.packageParts == packageParts && other.metadataParts == metadataParts
override fun hashCode() =
(packageFqName.hashCode() * 31 + packageParts.hashCode()) * 31 + metadataParts.hashCode()
override fun toString() =
(parts + metadataParts).toString()
}
fun JvmModuleProtoBuf.Module.serializeToByteArray(version: BinaryVersion, flags: Int): ByteArray {
val moduleMapping = ByteArrayOutputStream(4096)
val out = DataOutputStream(moduleMapping)
val versionArray = version.toArray()
out.writeInt(versionArray.size)
for (number in versionArray) {
out.writeInt(number)
}
if (isKotlin1Dot4OrLater(version)) {
out.writeInt(flags)
}
writeTo(out)
out.flush()
return moduleMapping.toByteArray()
}
