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/*
* Copyright 2010-2020 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.idea.caches.project
import com.intellij.openapi.project.Project
import com.intellij.openapi.roots.OrderRootType
import com.intellij.openapi.vfs.VirtualFile
import com.intellij.psi.search.DelegatingGlobalSearchScope
import com.intellij.psi.search.GlobalSearchScope
import com.intellij.util.indexing.FileBasedIndex
import org.jetbrains.kotlin.caches.project.cacheInvalidatingOnRootModifications
import org.jetbrains.kotlin.idea.configuration.IdeBuiltInsLoadingState
import org.jetbrains.kotlin.idea.vfilefinder.KotlinStdlibIndex
import org.jetbrains.kotlin.name.FqName
import java.util.concurrent.ConcurrentHashMap
// TODO(kirpichenkov): works only for JVM (see KT-44552)
interface KotlinStdlibCache {
fun isStdlib(libraryInfo: LibraryInfo): Boolean
fun isStdlibDependency(libraryInfo: LibraryInfo): Boolean
fun findStdlibInModuleDependencies(module: IdeaModuleInfo): LibraryInfo?
companion object {
fun getInstance(project: Project): KotlinStdlibCache =
if (IdeBuiltInsLoadingState.isFromClassLoader) {
Disabled
} else {
project.getService(KotlinStdlibCache::class.java)
?: error("Failed to load service ${KotlinStdlibCache::class.java.name}")
}
val Disabled = object : KotlinStdlibCache {
override fun isStdlib(libraryInfo: LibraryInfo) = false
override fun isStdlibDependency(libraryInfo: LibraryInfo) = false
override fun findStdlibInModuleDependencies(module: IdeaModuleInfo): LibraryInfo? = null
}
}
}
class KotlinStdlibCacheImpl(val project: Project) : KotlinStdlibCache {
companion object {
private const val KOTLIN_JAVA_RUNTIME_NAME = "KotlinJavaRuntime"
}
@JvmInline
private value class StdlibDependency(val libraryInfo: LibraryInfo?)
private val isStdlibCache: MutableMap<LibraryInfo, Boolean>
get() = project.cacheInvalidatingOnRootModifications {
ConcurrentHashMap<LibraryInfo, Boolean>()
}
private val isStdlibDependencyCache: MutableMap<LibraryInfo, Boolean>
get() = project.cacheInvalidatingOnRootModifications {
ConcurrentHashMap<LibraryInfo, Boolean>()
}
private val moduleStdlibDependencyCache: MutableMap<IdeaModuleInfo, StdlibDependency>
get() = project.cacheInvalidatingOnRootModifications {
ConcurrentHashMap<IdeaModuleInfo, StdlibDependency>()
}
private class LibraryScope(
project: Project,
private val directories: Set<VirtualFile>
) : DelegatingGlobalSearchScope(GlobalSearchScope.allScope(project)) {
private val fileSystems = directories.mapTo(hashSetOf(), VirtualFile::getFileSystem)
override fun contains(file: VirtualFile): Boolean =
file.fileSystem in fileSystems && generateSequence(file, VirtualFile::getParent).any { it in directories }
override fun toString() = "All files under: $directories"
}
private fun libraryScopeContainsIndexedFilesForNames(libraryInfo: LibraryInfo, names: Collection<FqName>) =
names.any { name ->
FileBasedIndex.getInstance().getContainingFiles(
KotlinStdlibIndex.KEY,
name,
LibraryScope(project, libraryInfo.library.rootProvider.getFiles(OrderRootType.CLASSES).toSet())
).isNotEmpty()
}
private fun libraryScopeContainsIndexedFilesForName(libraryInfo: LibraryInfo, name: FqName) =
libraryScopeContainsIndexedFilesForNames(libraryInfo, listOf(name))
private fun isFatJar(libraryInfo: LibraryInfo) =
libraryInfo.getLibraryRoots().size > 1
private fun isKotlinJavaRuntime(libraryInfo: LibraryInfo) =
libraryInfo.library.name == KOTLIN_JAVA_RUNTIME_NAME
override fun isStdlib(libraryInfo: LibraryInfo): Boolean {
return isStdlibCache.getOrPut(libraryInfo) {
libraryScopeContainsIndexedFilesForName(libraryInfo, KotlinStdlibIndex.KOTLIN_STDLIB_NAME) &&
(!isFatJar(libraryInfo) || isKotlinJavaRuntime(libraryInfo))
}
}
override fun isStdlibDependency(libraryInfo: LibraryInfo): Boolean {
return isStdlibDependencyCache.getOrPut(libraryInfo) {
libraryScopeContainsIndexedFilesForNames(libraryInfo, KotlinStdlibIndex.STANDARD_LIBRARY_DEPENDENCY_NAMES) &&
(!isFatJar(libraryInfo) || isKotlinJavaRuntime(libraryInfo))
}
}
override fun findStdlibInModuleDependencies(module: IdeaModuleInfo): LibraryInfo? {
val stdlibDependency = moduleStdlibDependencyCache.getOrPut(module) {
val stdLib = module.dependencies().firstOrNull {
it is LibraryInfo && isStdlib(it)
} as LibraryInfo?
StdlibDependency(stdLib)
}
return stdlibDependency.libraryInfo
}
}
fun LibraryInfo.isCoreKotlinLibrary(project: Project): Boolean =
isKotlinStdlib(project) || isKotlinStdlibDependency(project)
fun LibraryInfo.isKotlinStdlib(project: Project): Boolean =
KotlinStdlibCache.getInstance(project).isStdlib(this)
fun LibraryInfo.isKotlinStdlibDependency(project: Project): Boolean =
KotlinStdlibCache.getInstance(project).isStdlibDependency(this)
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