Initial implementation of klib components

compiler/cli/src/org/jetbrains/kotlin/cli/metadata/K2MetadataKlibSerializer.kt

@@ -30,7 +30,7 @@ import org.jetbrains.kotlin.library.KotlinLibrary
 import org.jetbrains.kotlin.library.KotlinLibraryVersioning
 import org.jetbrains.kotlin.library.SerializedMetadata
 import org.jetbrains.kotlin.library.impl.buildKoltinLibrary
-import org.jetbrains.kotlin.library.impl.createKotlinLibrary
+import org.jetbrains.kotlin.library.impl.createKotlinLibraryComponents
 import org.jetbrains.kotlin.library.metadata.parseModuleHeader
 import org.jetbrains.kotlin.metadata.builtins.BuiltInsBinaryVersion
 import org.jetbrains.kotlin.name.Name
@@ -110,7 +110,9 @@ private class KlibMetadataDependencyContainer(
         val klibFiles = classpathFiles
             .filter { it.extension == "klib" || it.isDirectory }
 
-        klibFiles.map { createKotlinLibrary(org.jetbrains.kotlin.konan.file.File(it.absolutePath)) }
+        // TODO: need to move K2Metadata to SearchPathResolver.
+        // Otherewise there's no good way to choose between the components.
+        klibFiles.map { createKotlinLibraryComponents(org.jetbrains.kotlin.konan.file.File(it.absolutePath)).single() }
     }
 
     private val builtIns

compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/JsLibraryResolver.kt

@@ -12,6 +12,7 @@ import org.jetbrains.kotlin.library.KotlinLibrary
 import org.jetbrains.kotlin.library.KotlinLibraryProperResolverWithAttributes
 import org.jetbrains.kotlin.library.UnresolvedLibrary
 import org.jetbrains.kotlin.library.impl.createKotlinLibrary
+import org.jetbrains.kotlin.library.impl.createKotlinLibraryComponents
 import org.jetbrains.kotlin.library.resolver.KotlinLibraryResolveResult
 import org.jetbrains.kotlin.library.resolver.impl.libraryResolver
 import org.jetbrains.kotlin.util.Logger
@@ -37,7 +38,7 @@ class JsLibraryResolver(
     emptyList()
 ) {
     // Stick with the default KotlinLibrary for now.
-    override fun libraryBuilder(file: File, isDefault: Boolean) = createKotlinLibrary(file, isDefault)
+    override fun libraryComponentBuilder(file: File, isDefault: Boolean) = createKotlinLibraryComponents(file, isDefault)
 }
 
 // TODO: This is a temporary set of library resolver policies for js compiler.

compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt

@@ -43,6 +43,7 @@ import org.jetbrains.kotlin.konan.util.KlibMetadataFactories
 import org.jetbrains.kotlin.library.*
 import org.jetbrains.kotlin.library.impl.buildKoltinLibrary
 import org.jetbrains.kotlin.library.impl.createKotlinLibrary
+import org.jetbrains.kotlin.library.impl.createKotlinLibraryComponents
 import org.jetbrains.kotlin.library.resolver.KotlinLibraryResolveResult
 import org.jetbrains.kotlin.library.resolver.TopologicalLibraryOrder
 import org.jetbrains.kotlin.metadata.ProtoBuf
@@ -73,8 +74,11 @@ val KotlinLibrary.isBuiltIns: Boolean
         .propertyList(KLIB_PROPERTY_DEPENDS, escapeInQuotes = true)
         .isEmpty()
 
+// TODO: The only place loadKlib() is used now is Wasm backend.
+// Need to move it to SearchPathResolver too.
+// Otherwise there's no good way to choose between the components.
 fun loadKlib(klibPath: String) =
-    createKotlinLibrary(KFile(KFile(klibPath).absolutePath))
+    createKotlinLibraryComponents(KFile(KFile(klibPath).absolutePath)).single()
 
 val emptyLoggingContext = object : LoggingContext {
     override var inVerbosePhase = false

compiler/util-klib/src/org/jetbrains/kotlin/library/KotlinLibrary.kt

@@ -23,10 +23,12 @@ const val KLIB_PROPERTY_EXPORT_FORWARD_DECLARATIONS = "exportForwardDeclarations
 interface BaseKotlinLibrary {
     val libraryName: String
     val libraryFile: File
+    val componentList: List<String>
     val versions: KotlinLibraryVersioning
     // Whether this library is default (provided by distribution)?
     val isDefault: Boolean
     val manifestProperties: Properties
+    val has_pre_1_4_manifest: Boolean
 }
 
 interface MetadataLibrary {

compiler/util-klib/src/org/jetbrains/kotlin/library/KotlinLibraryLayout.kt

@@ -30,15 +30,20 @@ interface KotlinLibraryLayout {
     val libDir: File
     val libraryName: String
         get() = libDir.path
+    val component: String?
+    val componentDir: File
+        get() = File(libDir, component!!)
     val manifestFile
-        get() = File(libDir, KLIB_MANIFEST_FILE_NAME)
+        get() = File(componentDir, KLIB_MANIFEST_FILE_NAME)
     val resourcesDir
-        get() = File(libDir, "resources")
+        get() = File(componentDir, "resources")
+    val pre_1_4_manifest: File
+        get() = File(libDir, KLIB_MANIFEST_FILE_NAME)
 }
 
 interface MetadataKotlinLibraryLayout : KotlinLibraryLayout {
     val metadataDir
-        get() = File(libDir, "linkdata")
+        get() = File(componentDir, "linkdata")
     val moduleHeaderFile
         get() = File(metadataDir, KLIB_MODULE_METADATA_FILE_NAME)
 
@@ -51,7 +56,7 @@ interface MetadataKotlinLibraryLayout : KotlinLibraryLayout {
 
 interface IrKotlinLibraryLayout : KotlinLibraryLayout {
     val irDir
-        get() = File(libDir, KLIB_IR_FOLDER_NAME)
+        get() = File(componentDir, KLIB_IR_FOLDER_NAME)
     val irDeclarations
         get() = File(irDir, "irDeclarations.knd")
     val irSymbols

compiler/util-klib/src/org/jetbrains/kotlin/library/SearchPathResolver.kt

@@ -2,6 +2,7 @@ package org.jetbrains.kotlin.library
 
 import org.jetbrains.kotlin.konan.CompilerVersion
 import org.jetbrains.kotlin.konan.file.File
+import org.jetbrains.kotlin.library.impl.isPre_1_4_Library
 import org.jetbrains.kotlin.util.*
 
 const val KOTLIN_STDLIB_NAME = "stdlib"
@@ -21,7 +22,7 @@ interface SearchPathResolverWithAttributes<L: KotlinLibrary>: SearchPathResolver
 }
 
 // This is a simple library resolver that only cares for file names.
-abstract class KotlinLibrarySearchPathResolver<L: KotlinLibrary>(
+abstract class KotlinLibrarySearchPathResolver<L: KotlinLibrary> (
         repositories: List<String>,
         directLibs: List<String>,
         val distributionKlib: String?,
@@ -43,10 +44,10 @@ abstract class KotlinLibrarySearchPathResolver<L: KotlinLibrary>(
 
     private val repoRoots: List<File> by lazy { repositories.map { File(it) } }
 
-    abstract fun libraryBuilder(file: File, isDefault: Boolean): L
+    abstract fun libraryComponentBuilder(file: File, isDefault: Boolean): List<L>
 
     private val directLibraries: List<KotlinLibrary> by lazy {
-        directLibs.mapNotNull { found(File(it)) }.map { libraryBuilder(it, false) }
+        directLibs.mapNotNull { found(File(it)) }.flatMap { libraryComponentBuilder(it, false) }
     }
 
     // This is the place where we specify the order of library search.
@@ -55,8 +56,7 @@ abstract class KotlinLibrarySearchPathResolver<L: KotlinLibrary>(
     }
 
     private fun found(candidate: File): File? {
-        fun check(file: File): Boolean =
+        fun check(file: File): Boolean = file.exists
-                file.exists && (file.isFile || File(file, "manifest").exists)
 
         val noSuffix = File(candidate.path.removeSuffixIfPresent(KLIB_FILE_EXTENSION_WITH_DOT))
         val withSuffix = File(candidate.path.suffixIfNot(KLIB_FILE_EXTENSION_WITH_DOT))
@@ -94,11 +94,22 @@ abstract class KotlinLibrarySearchPathResolver<L: KotlinLibrary>(
         return sequence.filterNotNull()
     }
 
+    private fun Sequence<File>.filterOutPre_1_4_libraries(): Sequence<File>  = this.filter{
+            if (it.isPre_1_4_Library) {
+                logger.warning("Skipping \"$it\" as it is a pre 1.4 library")
+                false
+            } else {
+                true
+            }
+        }
+
     override fun resolve(unresolved: UnresolvedLibrary, isDefaultLink: Boolean): L {
         val givenPath = unresolved.path
         try {
             val fileSequence = resolutionSequence(givenPath)
-            val matching = fileSequence.map { libraryBuilder(it, isDefaultLink) }
+            val matching = fileSequence
+                .filterOutPre_1_4_libraries()
+                .flatMap { libraryComponentBuilder(it, isDefaultLink).asSequence() }
                 .map { it.takeIf { libraryMatch(it, unresolved) } }
                 .filterNotNull()
 

compiler/util-klib/src/org/jetbrains/kotlin/library/impl/KotlinLibraryImpl.kt

@@ -28,8 +28,21 @@ open class BaseKotlinLibraryImpl(
     override val libraryFile get() = access.klib
     override val libraryName: String by lazy { access.inPlace { it.libraryName } }
 
+    override val componentList: List<String> by lazy {
+        access.inPlace {
+            it.libDir.listFiles
+                .filter { it.isDirectory }
+                .filter { it.listFiles.map { it.name }.contains(KLIB_MANIFEST_FILE_NAME) }
+                .map { it.name }
+        }
+    }
+
     override fun toString() = "$libraryName[default=$isDefault]"
 
+    override val has_pre_1_4_manifest: Boolean by lazy {
+        access.inPlace { it.pre_1_4_manifest.exists }
+    }
+
     override val manifestProperties: Properties by lazy {
         access.inPlace { it.manifestFile.loadProperties() }
     }
@@ -221,11 +234,12 @@ open class KotlinLibraryImpl(
 
 fun createKotlinLibrary(
     libraryFile: File,
+    component: String,
     isDefault: Boolean = false
 ): KotlinLibrary {
-    val baseAccess = BaseLibraryAccess<KotlinLibraryLayout>(libraryFile)
+    val baseAccess = BaseLibraryAccess<KotlinLibraryLayout>(libraryFile, component)
-    val metadataAccess = MetadataLibraryAccess<MetadataKotlinLibraryLayout>(libraryFile)
+    val metadataAccess = MetadataLibraryAccess<MetadataKotlinLibraryLayout>(libraryFile, component)
-    val irAccess = IrLibraryAccess<IrKotlinLibraryLayout>(libraryFile)
+    val irAccess = IrLibraryAccess<IrKotlinLibraryLayout>(libraryFile, component)
 
     val base = BaseKotlinLibraryImpl(baseAccess, isDefault)
     val metadata = MetadataLibraryImpl(metadataAccess)
@@ -234,3 +248,21 @@ fun createKotlinLibrary(
 
     return KotlinLibraryImpl(base, metadata, ir)
 }
+
+fun createKotlinLibraryComponents(
+    libraryFile: File,
+    isDefault: Boolean = true
+) : List<KotlinLibrary> {
+    val baseAccess = BaseLibraryAccess<KotlinLibraryLayout>(libraryFile, null)
+    val base = BaseKotlinLibraryImpl(baseAccess, isDefault)
+    return base.componentList.map {
+        createKotlinLibrary(libraryFile, it, isDefault)
+    }
+}
+
+val File.isPre_1_4_Library: Boolean
+    get() {
+        val baseAccess = BaseLibraryAccess<KotlinLibraryLayout>(this, null)
+        val base = BaseKotlinLibraryImpl(baseAccess, false)
+        return base.has_pre_1_4_manifest
+    }

compiler/util-klib/src/org/jetbrains/kotlin/library/impl/KotlinLibraryLayoutImpl.kt

@@ -7,7 +7,7 @@ import org.jetbrains.kotlin.library.*
 import org.jetbrains.kotlin.util.removeSuffixIfPresent
 import java.nio.file.FileSystem
 
-open class KotlinLibraryLayoutImpl(val klib: File) : KotlinLibraryLayout {
+open class KotlinLibraryLayoutImpl(val klib: File, override val component: String?) : KotlinLibraryLayout {
     val isZipped = klib.isFile
 
     init {
@@ -32,7 +32,7 @@ open class KotlinLibraryLayoutImpl(val klib: File) : KotlinLibraryLayout {
 
 }
 
-class MetadataLibraryLayoutImpl(klib: File) : KotlinLibraryLayoutImpl(klib), MetadataKotlinLibraryLayout {
+class MetadataLibraryLayoutImpl(klib: File, component: String) : KotlinLibraryLayoutImpl(klib, component), MetadataKotlinLibraryLayout {
 
     override val extractingToTemp: MetadataKotlinLibraryLayout by lazy {
         ExtractingMetadataLibraryImpl(this)
@@ -42,7 +42,7 @@ class MetadataLibraryLayoutImpl(klib: File) : KotlinLibraryLayoutImpl(klib), Met
         FromZipMetadataLibraryImpl(this, zipFileSystem)
 }
 
-class IrLibraryLayoutImpl(klib: File) : KotlinLibraryLayoutImpl(klib), IrKotlinLibraryLayout {
+class IrLibraryLayoutImpl(klib: File, component: String) : KotlinLibraryLayoutImpl(klib, component), IrKotlinLibraryLayout {
 
     override val extractingToTemp: IrKotlinLibraryLayout by lazy {
         ExtractingIrLibraryImpl(this)
@@ -52,8 +52,8 @@ class IrLibraryLayoutImpl(klib: File) : KotlinLibraryLayoutImpl(klib), IrKotlinL
         FromZipIrLibraryImpl(this, zipFileSystem)
 }
 
-open class BaseLibraryAccess<L : KotlinLibraryLayout>(val klib: File) {
+open class BaseLibraryAccess<L : KotlinLibraryLayout>(val klib: File, component: String?) {
-    open val layout = KotlinLibraryLayoutImpl(klib)
+    open val layout = KotlinLibraryLayoutImpl(klib, component)
 
     fun <T> realFiles(action: (L) -> T): T =
         if (layout.isZipped)
@@ -71,12 +71,12 @@ open class BaseLibraryAccess<L : KotlinLibraryLayout>(val klib: File) {
 }
 
 
-open class MetadataLibraryAccess<L : KotlinLibraryLayout>(klib: File) : BaseLibraryAccess<L>(klib) {
+open class MetadataLibraryAccess<L : KotlinLibraryLayout>(klib: File, component: String) : BaseLibraryAccess<L>(klib, component) {
-    override val layout = MetadataLibraryLayoutImpl(klib)
+    override val layout = MetadataLibraryLayoutImpl(klib, component)
 }
 
-open class IrLibraryAccess<L : KotlinLibraryLayout>(klib: File) : BaseLibraryAccess<L>(klib) {
+open class IrLibraryAccess<L : KotlinLibraryLayout>(klib: File, component: String) : BaseLibraryAccess<L>(klib, component) {
-    override val layout = IrLibraryLayoutImpl(klib)
+    override val layout = IrLibraryLayoutImpl(klib, component)
 }
 
 open class FromZipBaseLibraryImpl(zipped: KotlinLibraryLayoutImpl, zipFileSystem: FileSystem) :
@@ -84,6 +84,7 @@ open class FromZipBaseLibraryImpl(zipped: KotlinLibraryLayoutImpl, zipFileSystem
 
     override val libraryName = zipped.libraryName
     override val libDir = zipFileSystem.file(zipped.libDir)
+    override val component = zipped.component
 }
 
 class FromZipMetadataLibraryImpl(zipped: MetadataLibraryLayoutImpl, zipFileSystem: FileSystem) :
@@ -113,6 +114,7 @@ fun KotlinLibraryLayoutImpl.extractDir(directory: File): File = this.klib.withZi
 open class ExtractingKotlinLibraryLayout(zipped: KotlinLibraryLayoutImpl) : KotlinLibraryLayout {
     override val libDir: File get() = error("Extracting layout doesn't extract its own root")
     override val libraryName = zipped.libraryName
+    override val component = zipped.component
 }
 
 open class ExtractingBaseLibraryImpl(zipped: KotlinLibraryLayoutImpl) :

compiler/util-klib/src/org/jetbrains/kotlin/library/impl/KotlinLibraryWriterImpl.kt

@@ -11,8 +11,11 @@ import org.jetbrains.kotlin.konan.properties.Properties
 import org.jetbrains.kotlin.konan.properties.saveToFile
 import org.jetbrains.kotlin.library.*
 
+const val KLIB_DEFAULT_COMPONENT_NAME = "default"
+
 open class KotlinLibraryLayoutForWriter(
-    override val libDir: File
+    override val libDir: File,
+    override val component: String = KLIB_DEFAULT_COMPONENT_NAME
 ) : KotlinLibraryLayout, MetadataKotlinLibraryLayout, IrKotlinLibraryLayout
 
 open class BaseWriterImpl(

konan/utils/src/org/jetbrains/kotlin/konan/target/Distribution.kt

@@ -68,10 +68,11 @@ class Distribution(
 
     val klib = "$konanHome/klib"
     val stdlib = "$klib/common/stdlib"
+    val stdlibDefaultComponent = "$stdlib/default"
 
     fun defaultNatives(target: KonanTarget) = "$konanHome/konan/targets/${target.visibleName}/native"
 
-    fun runtime(target: KonanTarget) = runtimeFileOverride ?: "$stdlib/targets/${target.visibleName}/native/runtime.bc"
+    fun runtime(target: KonanTarget) = runtimeFileOverride ?: "$stdlibDefaultComponent/targets/${target.visibleName}/native/runtime.bc"
 
     val launcherFiles = listOf("launcher.bc")