Minimize dependencies of ModuleMapping

Prepare it to be moved to metadata.jvm

compiler/backend/src/org/jetbrains/kotlin/codegen/ClassFileFactory.java

@@ -33,6 +33,7 @@ import org.jetbrains.kotlin.descriptors.DescriptorUtilKt;
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor;
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation;
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping;
+import org.jetbrains.kotlin.load.kotlin.ModuleMappingUtilKt;
 import org.jetbrains.kotlin.load.kotlin.PackagePartClassUtils;
 import org.jetbrains.kotlin.load.kotlin.PackageParts;
 import org.jetbrains.kotlin.metadata.ProtoBuf;
@@ -192,8 +193,9 @@ public class ClassFileFactory implements OutputFileCollection {
                     answer.append(file.asText());
                     break;
                 case "kotlin_module": {
-                    ModuleMapping mapping = ModuleMapping.Companion.create(
-                            file.asByteArray(), relativePath.getPath(), CompilerDeserializationConfiguration.Default.INSTANCE
+                    ModuleMapping mapping = ModuleMappingUtilKt.loadModuleMapping(
+                            ModuleMapping.Companion, file.asByteArray(), relativePath.getPath(),
+                            CompilerDeserializationConfiguration.Default.INSTANCE
                     );
                     for (Map.Entry<String, PackageParts> entry : mapping.getPackageFqName2Parts().entrySet()) {
                         FqName packageFqName = new FqName(entry.getKey());

compiler/backend/src/org/jetbrains/kotlin/codegen/classFileUtils.kt

@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.load.kotlin.JvmMetadataVersion
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping
 import org.jetbrains.kotlin.load.kotlin.PackageParts
+import org.jetbrains.kotlin.load.kotlin.loadModuleMapping
 import org.jetbrains.kotlin.metadata.jvm.JvmModuleProtoBuf
 import org.jetbrains.kotlin.resolve.jvm.JvmClassName
 import java.io.ByteArrayOutputStream
@@ -41,7 +42,7 @@ private fun Iterable<PackageParts>.addCompiledParts(state: GenerationState): Lis
     val incrementalCache = state.incrementalCacheForThisTarget ?: return this.toList()
     val moduleMappingData = incrementalCache.getModuleMappingData() ?: return this.toList()
 
-    val mapping = ModuleMapping.create(moduleMappingData, "<incremental>", state.deserializationConfiguration)
+    val mapping = ModuleMapping.loadModuleMapping(moduleMappingData, "<incremental>", state.deserializationConfiguration)
 
     incrementalCache.getObsoletePackageParts().forEach { internalName ->
         val qualifier = JvmClassName.byInternalName(internalName).packageFqName.asString()

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/JvmPackagePartProvider.kt

@@ -24,6 +24,7 @@ import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping
 import org.jetbrains.kotlin.load.kotlin.PackageParts
+import org.jetbrains.kotlin.load.kotlin.loadModuleMapping
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.resolve.CompilerDeserializationConfiguration
 import java.io.EOFException
@@ -71,7 +72,7 @@ class JvmPackagePartProvider(
 
     override fun getAnnotationsOnBinaryModule(moduleName: String): List<ClassId> {
         return loadedModules.mapNotNull { (_, mapping, name) ->
-            if (name == moduleName) mapping.moduleData.annotations else null
+            if (name == moduleName) mapping.moduleData.annotations.map(ClassId::fromString) else null
         }.flatten()
     }
 
@@ -85,9 +86,8 @@ class JvmPackagePartProvider(
                 if (!moduleFile.name.endsWith(ModuleMapping.MAPPING_FILE_EXT)) continue
 
                 val mapping = try {
-                    ModuleMapping.create(moduleFile.contentsToByteArray(), moduleFile.toString(), deserializationConfiguration)
-                }
-                catch (e: EOFException) {
+                    ModuleMapping.loadModuleMapping(moduleFile.contentsToByteArray(), moduleFile.toString(), deserializationConfiguration)
+                } catch (e: EOFException) {
                     throw RuntimeException("Error on reading package parts from $moduleFile in $root", e)
                 }
                 loadedModules.add(ModuleMappingInfo(root, mapping, moduleFile.nameWithoutExtension))

compiler/frontend.java/src/org/jetbrains/kotlin/load/kotlin/incremental/IncrementalPackagePartProvider.kt

@@ -19,6 +19,7 @@ package org.jetbrains.kotlin.load.kotlin.incremental
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping
 import org.jetbrains.kotlin.load.kotlin.incremental.components.IncrementalCache
+import org.jetbrains.kotlin.load.kotlin.loadModuleMapping
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.serialization.deserialization.DeserializationConfiguration
 import org.jetbrains.kotlin.storage.StorageManager
@@ -32,7 +33,7 @@ class IncrementalPackagePartProvider(
 
     private val moduleMappings = storageManager.createLazyValue {
         incrementalCaches.map { cache ->
-            ModuleMapping.create(cache.getModuleMappingData(), "<incremental>", deserializationConfiguration)
+            ModuleMapping.loadModuleMapping(cache.getModuleMappingData(), "<incremental>", deserializationConfiguration)
         }
     }
 

compiler/tests/org/jetbrains/kotlin/codegen/JvmModuleProtoBufTest.kt

@@ -21,6 +21,7 @@ import org.jetbrains.kotlin.config.ApiVersion
 import org.jetbrains.kotlin.config.LanguageVersion
 import org.jetbrains.kotlin.config.LanguageVersionSettingsImpl
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping
+import org.jetbrains.kotlin.load.kotlin.loadModuleMapping
 import org.jetbrains.kotlin.resolve.CompilerDeserializationConfiguration
 import org.jetbrains.kotlin.test.CompilerTestUtil
 import org.jetbrains.kotlin.test.KotlinTestUtils
@@ -45,7 +46,7 @@ class JvmModuleProtoBufTest : KtUsefulTestCase() {
                 "-language-version", compileWith.versionString
         ) + extraOptions)
 
-        val mapping = ModuleMapping.create(
+        val mapping = ModuleMapping.loadModuleMapping(
                 File(tmpdir, "META-INF/$moduleName.${ModuleMapping.MAPPING_FILE_EXT}").readBytes(), "test",
                 CompilerDeserializationConfiguration(
                         LanguageVersionSettingsImpl(loadWith, ApiVersion.createByLanguageVersion(loadWith))
@@ -53,7 +54,7 @@ class JvmModuleProtoBufTest : KtUsefulTestCase() {
         )
         val result = buildString {
             for (annotationClassId in mapping.moduleData.annotations) {
-                appendln("@${annotationClassId.asString()}")
+                appendln("@$annotationClassId")
             }
             for ((fqName, packageParts) in mapping.packageFqName2Parts) {
                 appendln(fqName)

core/descriptors.jvm/src/org/jetbrains/kotlin/load/kotlin/BinaryModuleData.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.load.kotlin
 
-import org.jetbrains.kotlin.name.ClassId
-
-class BinaryModuleData(val annotations: List<ClassId>)
+/**
+ * @param annotations list of module annotations, in the format: "org/foo/bar/Baz.Inner" (see [ClassId.fromString])
+ */
+class BinaryModuleData(val annotations: List<String>)

core/descriptors.jvm/src/org/jetbrains/kotlin/load/kotlin/ModuleMapping.kt

@@ -18,11 +18,6 @@ package org.jetbrains.kotlin.load.kotlin
 
 import org.jetbrains.kotlin.metadata.deserialization.NameResolverImpl
 import org.jetbrains.kotlin.metadata.jvm.JvmModuleProtoBuf
-import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.resolve.jvm.JvmClassName
-import org.jetbrains.kotlin.serialization.deserialization.DeserializationConfiguration
-import org.jetbrains.kotlin.serialization.deserialization.getClassId
 import java.io.ByteArrayInputStream
 import java.io.DataInputStream
 import java.io.IOException
@@ -48,10 +43,12 @@ class ModuleMapping private constructor(
         @JvmField
         val CORRUPTED: ModuleMapping = ModuleMapping(emptyMap(), BinaryModuleData(emptyList()), "CORRUPTED")
 
-        fun create(
-                bytes: ByteArray?,
-                debugName: String,
-                configuration: DeserializationConfiguration
+        fun loadModuleMapping(
+            bytes: ByteArray?,
+            debugName: String,
+            isVersionCompatible: (IntArray) -> Boolean,
+            skipMetadataVersionCheck: Boolean,
+            isJvmPackageNameSupported: Boolean
         ): ModuleMapping {
             if (bytes == null) {
                 return EMPTY
@@ -66,9 +63,7 @@ class ModuleMapping private constructor(
                 return CORRUPTED
             }
 
-            val version = JvmMetadataVersion(*versionNumber)
-
-            if (configuration.skipMetadataVersionCheck || version.isCompatible()) {
+            if (skipMetadataVersionCheck || isVersionCompatible(versionNumber)) {
                 val moduleProto = JvmModuleProtoBuf.Module.parseFrom(stream) ?: return EMPTY
                 val result = linkedMapOf<String, PackageParts>()
 
@@ -83,7 +78,7 @@ class ModuleMapping private constructor(
                         packageParts.addPart(internalNameOf(packageFqName, partShortName), facadeInternalName)
                     }
 
-                    if (configuration.isJvmPackageNameSupported) {
+                    if (isJvmPackageNameSupported) {
                         for ((index, partShortName) in proto.classWithJvmPackageNameShortNameList.withIndex()) {
                             val packageId = proto.classWithJvmPackageNamePackageIdList.getOrNull(index)
                                             ?: proto.classWithJvmPackageNamePackageIdList.lastOrNull()
@@ -101,7 +96,7 @@ class ModuleMapping private constructor(
 
                 // TODO: read arguments of module annotations
                 val nameResolver = NameResolverImpl(moduleProto.stringTable, moduleProto.qualifiedNameTable)
-                val annotations = moduleProto.annotationList.map { proto -> nameResolver.getClassId(proto.id) }
+                val annotations = moduleProto.annotationList.map { proto -> nameResolver.getQualifiedClassName(proto.id) }
 
                 return ModuleMapping(result, BinaryModuleData(annotations), debugName)
             } else {
@@ -114,7 +109,8 @@ class ModuleMapping private constructor(
 }
 
 private fun internalNameOf(packageFqName: String, className: String): String =
-        JvmClassName.byFqNameWithoutInnerClasses(FqName(packageFqName).child(Name.identifier(className))).internalName
+    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)

core/descriptors.jvm/src/org/jetbrains/kotlin/load/kotlin/ModuleMappingUtil.kt

@@ -0,0 +1,21 @@
+/*
+ * 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.load.kotlin
+
+import org.jetbrains.kotlin.serialization.deserialization.DeserializationConfiguration
+
+fun ModuleMapping.Companion.loadModuleMapping(
+    bytes: ByteArray?,
+    debugName: String,
+    configuration: DeserializationConfiguration
+): ModuleMapping =
+    loadModuleMapping(
+        bytes,
+        debugName,
+        { version -> JvmMetadataVersion(*version).isCompatible() },
+        configuration.skipMetadataVersionCheck,
+        configuration.isJvmPackageNameSupported
+    )

core/descriptors.runtime/src/kotlin/reflect/jvm/internal/components/RuntimePackagePartProvider.kt

@@ -18,6 +18,7 @@ package kotlin.reflect.jvm.internal.components
 
 import org.jetbrains.kotlin.descriptors.PackagePartProvider
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping
+import org.jetbrains.kotlin.load.kotlin.loadModuleMapping
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.serialization.deserialization.DeserializationConfiguration
 import java.util.concurrent.ConcurrentHashMap
@@ -29,10 +30,9 @@ class RuntimePackagePartProvider(private val classLoader: ClassLoader) : Package
         val mapping = try {
             val resourcePath = "META-INF/$moduleName.${ModuleMapping.MAPPING_FILE_EXT}"
             classLoader.getResourceAsStream(resourcePath)?.use { stream ->
-                ModuleMapping.create(stream.readBytes(), resourcePath, DeserializationConfiguration.Default)
+                ModuleMapping.loadModuleMapping(stream.readBytes(), resourcePath, DeserializationConfiguration.Default)
             }
-        }
-        catch (e: Exception) {
+        } catch (e: Exception) {
             // TODO: do not swallow this exception?
             null
         }

idea/idea-analysis/src/org/jetbrains/kotlin/idea/vfilefinder/KotlinJvmModuleAnnotationsIndex.kt

@@ -9,6 +9,7 @@ import com.intellij.util.indexing.*
 import com.intellij.util.io.DataExternalizer
 import com.intellij.util.io.IOUtil
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping
+import org.jetbrains.kotlin.load.kotlin.loadModuleMapping
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.serialization.deserialization.DeserializationConfiguration
 import java.io.DataInput
@@ -44,8 +45,8 @@ object KotlinJvmModuleAnnotationsIndex : FileBasedIndexExtension<String, List<Cl
     override fun getIndexer(): DataIndexer<String, List<ClassId>, FileContent> = DataIndexer { inputData ->
         val file = inputData.file
         try {
-            val moduleMapping = ModuleMapping.create(inputData.content, file.toString(), DeserializationConfiguration.Default)
-            return@DataIndexer mapOf(file.nameWithoutExtension to moduleMapping.moduleData.annotations)
+            val moduleMapping = ModuleMapping.loadModuleMapping(inputData.content, file.toString(), DeserializationConfiguration.Default)
+            return@DataIndexer mapOf(file.nameWithoutExtension to moduleMapping.moduleData.annotations.map(ClassId::fromString))
         } catch (e: Exception) {
             // Exceptions are already reported in KotlinModuleMappingIndex
             emptyMap()

idea/idea-analysis/src/org/jetbrains/kotlin/idea/vfilefinder/KotlinModuleMappingIndex.kt

@@ -22,6 +22,7 @@ import com.intellij.util.io.IOUtil
 import com.intellij.util.io.KeyDescriptor
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping
 import org.jetbrains.kotlin.load.kotlin.PackageParts
+import org.jetbrains.kotlin.load.kotlin.loadModuleMapping
 import org.jetbrains.kotlin.serialization.deserialization.DeserializationConfiguration
 import java.io.DataInput
 import java.io.DataOutput
@@ -77,7 +78,7 @@ object KotlinModuleMappingIndex : FileBasedIndexExtension<String, PackageParts>(
             val content = inputData.content
             val file = inputData.file
             try {
-                val moduleMapping = ModuleMapping.create(content, file.toString(), DeserializationConfiguration.Default)
+                val moduleMapping = ModuleMapping.loadModuleMapping(content, file.toString(), DeserializationConfiguration.Default)
                 if (moduleMapping === ModuleMapping.CORRUPTED) {
                     file.refresh(true, false)
                 }