Changes after code review

build.gradle.kts

@@ -732,4 +732,4 @@ allprojects {
             repositories.redirect()
         }
     }
-}
+}

compiler/ir/backend.common/src/KotlinIr.proto

@@ -74,11 +74,6 @@ message IrDeclarationOrigin {
   }
 }
 
-message Name {
-    required String name = 1;
-    required bool is_special = 2;
-}
-
 /* ------ Top Level---------------------------------------------- */
 
 message IrDeclarationContainer {
@@ -99,7 +94,7 @@ message IrFile {
 }
 
 message IrModule {
-  required Name name = 1;
+  required String name = 1;
   repeated IrFile file = 2;
   required IrSymbolTable symbol_table = 3;
   required IrTypeTable type_table = 4;
@@ -526,7 +521,7 @@ message IrFunction {
 }
 
 message IrFunctionBase {
-  required Name name = 1;
+  required String name = 1;
   required Visibility visibility = 2;
   required bool is_inline = 3;
   required bool is_external = 4;
@@ -548,7 +543,7 @@ message IrConstructor {
 message IrField {
   required IrSymbol symbol = 1;
   optional IrExpression initializer = 2;
-  required Name name = 3;
+  required String name = 3;
   required Visibility visibility = 4;
   required bool is_final = 5;
   required bool is_external = 6;
@@ -558,7 +553,7 @@ message IrField {
 
 message IrProperty {
   optional DescriptorReference descriptor_reference = 1; // IrProperty doesn't have a symbol at all. Preserve this rudiment for now.
-  required Name name = 2;
+  required String name = 2;
   required Visibility visibility = 3;
   required ModalityKind modality = 4;
   required bool is_var = 5;
@@ -572,7 +567,7 @@ message IrProperty {
 }
 
 message IrVariable {
-  required Name name = 1;
+  required String name = 1;
   required IrSymbol symbol = 2;
   required IrTypeIndex type = 3;
   required bool is_var = 4;
@@ -599,7 +594,7 @@ enum ModalityKind { // It is ModalityKind to not clash with Modality in descript
 
 message IrValueParameter {
   required IrSymbol symbol = 1;
-  required Name name = 2;
+  required String name = 2;
   required int32 index = 3;
   required IrTypeIndex type = 4;
   optional IrTypeIndex vararg_element_type = 5;
@@ -610,7 +605,7 @@ message IrValueParameter {
 
 message IrTypeParameter {
   required IrSymbol symbol = 1;
-  required Name name = 2;
+  required String name = 2;
   required int32 index = 3;
   required IrTypeVariance variance = 4;
   repeated IrTypeIndex super_type = 5;
@@ -623,7 +618,7 @@ message IrTypeParameterContainer {
 
 message IrClass {
   required IrSymbol symbol = 1;
-  required Name name = 2;
+  required String name = 2;
   required ClassKind kind = 3;
   required Visibility visibility = 4;
   required ModalityKind modality = 5;
@@ -643,7 +638,7 @@ message IrEnumEntry {
   required IrSymbol symbol = 1;
   optional IrExpression initializer = 2;
   optional IrDeclaration corresponding_class = 3;
-  required Name name = 4;
+  required String name = 4;
 }
 
 message IrAnonymousInit {

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/library/CombinedIrFileAccessor.kt

@@ -64,9 +64,7 @@ private const val INDEX_HEADER_SIZE = 4  // sizeof(Int).
 class CombinedIrFileWriter(val declarationCount: Int) {
     private var currentDeclaration = 0
     private var currentPosition = 0
-    private val file =  Files.createTempFile("ir", "").toFile().also {
-        it.deleteOnExit()
-    }
+    private val file =  Files.createTempFile("ir", "").toFile()
     private val randomAccessFile = RandomAccessFile(file.path, "rw")
 
     init {

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/AdditionalIrUtils.kt

@@ -178,7 +178,7 @@ class NaiveSourceBasedFileEntryImpl(override val name: String, val lineStartOffs
     override fun getColumnNumber(offset: Int): Int {
         assert(offset != UNDEFINED_OFFSET)
         if (offset == SYNTHETIC_OFFSET) return 0
-        var lineNumber = getLineNumber(offset)
+        val lineNumber = getLineNumber(offset)
         return offset - lineStartOffsets[lineNumber]
     }
 

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/DeclarationTable.kt

@@ -22,20 +22,17 @@ class DescriptorTable {
 abstract class DeclarationTable(val builtIns: IrBuiltIns, val descriptorTable: DescriptorTable, mangler: KotlinMangler): KotlinMangler by mangler {
 
     private val table = mutableMapOf<IrDeclaration, UniqId>()
-    val debugIndex = mutableMapOf<UniqId, String>()
     val descriptors = descriptorTable
-    abstract protected var currentIndex: Long
-    protected var initialized: Boolean = false
+    protected abstract var currentIndex: Long
 
-    open fun loadKnownBuiltins() {
+    open fun loadKnownBuiltins(): Long {
         builtIns.knownBuiltins.forEach {
             table.put(it, UniqId(currentIndex++, false))
         }
-        initialized = true
+        return currentIndex
     }
 
     fun uniqIdByDeclaration(value: IrDeclaration) = table.getOrPut(value) {
-        if (!initialized) error("DeclarationTable has not been initialized")
         computeUniqIdByDeclaration(value)
     }
 

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/DeserializeDescriptorReference.kt

@@ -28,7 +28,7 @@ abstract class DescriptorReferenceDeserializer(
     protected fun getContributedDescriptors(packageFqNameString: String, name: String): Collection<DeclarationDescriptor> {
         val packageFqName = packageFqNameString.let {
             if (it == "<root>") FqName.ROOT else FqName(it)
-        }// TODO: whould we store an empty string in the protobuf?
+        }// TODO: would we store an empty string in the protobuf?
 
         val contributedName = if (name.startsWith("<get-") || name.startsWith("<set-")) {
             name.substring(5, name.length - 1) // FIXME: rework serialization format.

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleDeserializer.kt

@@ -31,9 +31,6 @@ import org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrDeclarator.D
 import org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrType.KindCase.*
 import org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrVarargElement.VarargElementCase
 import org.jetbrains.kotlin.backend.common.serialization.KotlinIr.IrTypeArgument.KindCase.*
-
-
-
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.types.Variance
 
@@ -55,9 +52,9 @@ abstract class IrModuleDeserializer(
     abstract fun deserializeString(proto: KotlinIr.String): String
     abstract fun deserializeLoopHeader(loopIndex: Int, loopBuilder: () -> IrLoopBase): IrLoopBase
 
-    private fun deserializeName(proto: KotlinIr.Name): Name {
-        val name = deserializeString(proto.name)
-        return if (proto.isSpecial) Name.special(name) else Name.identifier(name)
+    private fun deserializeName(proto: KotlinIr.String): Name {
+        val name = deserializeString(proto)
+        return Name.guessByFirstCharacter(name)
     }
 
     private fun deserializeTypeArguments(proto: KotlinIr.TypeArguments): List<IrType> {

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/IrModuleSerializer.kt

@@ -88,12 +88,7 @@ open class IrModuleSerializer(
         return proto.build()
     }
 
-    fun serializeName(name: Name): KotlinIr.Name {
-        val proto = KotlinIr.Name.newBuilder()
-            .setName(serializeString(name.toString()))
-            .setIsSpecial(name.isSpecial)
-        return proto.build()
-    }
+    fun serializeName(name: Name): KotlinIr.String = serializeString(name.toString())
 
     /* ------- IrSymbols -------------------------------------------------------- */
 

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIrLinker.kt

@@ -27,11 +27,11 @@ import org.jetbrains.kotlin.serialization.deserialization.descriptors.Deserializ
 import java.io.File
 
 abstract class KotlinIrLinker(
-    currentModule: ModuleDescriptor,
     logger: LoggingContext,
     builtIns: IrBuiltIns,
     symbolTable: SymbolTable,
-    private val forwardModuleDescriptor: ModuleDescriptor?)
+    private val forwardModuleDescriptor: ModuleDescriptor?, 
+    val firstKnownBuiltinsIndex: Long)
         : IrModuleDeserializer(logger, builtIns, symbolTable),
           DescriptorUniqIdAware {
 
@@ -50,9 +50,18 @@ abstract class KotlinIrLinker(
 
     abstract protected val descriptorReferenceDeserializer: DescriptorReferenceDeserializer
 
-    private val descriptorToDirectoryMap = mutableMapOf<ModuleDescriptor, File>()
+    protected val indexAfterKnownBuiltins = loadKnownBuiltinSymbols()
 
-    private fun irDirectory(m: ModuleDescriptor): File = descriptorToDirectoryMap[m]!!
+    fun loadKnownBuiltinSymbols(): Long {
+        var currentIndex = firstKnownBuiltinsIndex
+        builtIns.knownBuiltins.forEach {
+            require(it is IrFunction)
+            deserializedSymbols.put(UniqIdKey(null, UniqId(currentIndex, isLocal = false)), it.symbol)
+            assert(symbolTable.referenceSimpleFunction(it.descriptor) == it.symbol)
+            currentIndex++
+        }
+        return currentIndex
+    }
 
     private fun referenceDeserializedSymbol(proto: KotlinIr.IrSymbolData, descriptor: DeclarationDescriptor?): IrSymbol = when (proto.kind) {
         KotlinIr.IrSymbolKind.ANONYMOUS_INIT_SYMBOL ->

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinMangler.kt

@@ -9,7 +9,7 @@ import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.descriptors.PropertyAccessorDescriptor
 import org.jetbrains.kotlin.descriptors.Visibilities
 import org.jetbrains.kotlin.descriptors.Visibility
-import org.jetbrains.kotlin.ir.backend.common.serialization.*
+import org.jetbrains.kotlin.backend.common.serialization.*
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.symbols.IrTypeParameterSymbol
 import org.jetbrains.kotlin.ir.types.*

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/LegacyDescriptorUtils.kt

@@ -21,7 +21,7 @@ internal val DeclarationDescriptor.isExpectMember: Boolean
 internal val DeclarationDescriptor.isSerializableExpectClass: Boolean
     get() = this is ClassDescriptor && ExpectedActualDeclarationChecker.shouldGenerateExpectClass(this)
 
-tailrec internal fun DeclarationDescriptor.findPackage(): PackageFragmentDescriptor {
+internal tailrec fun DeclarationDescriptor.findPackage(): PackageFragmentDescriptor {
     return if (this is PackageFragmentDescriptor) this
     else this.containingDeclaration!!.findPackage()
 }

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/UniqSymbolName.kt

@@ -1,10 +0,0 @@
-/*
- * Copyright 2010-2019 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.ir.backend.common.serialization
-
-import org.jetbrains.kotlin.ir.declarations.*
-import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.name.Name

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

@@ -43,7 +43,7 @@ import org.jetbrains.kotlin.resolve.CompilerDeserializationConfiguration
 import org.jetbrains.kotlin.storage.LockBasedStorageManager
 import org.jetbrains.kotlin.utils.DFS
 import java.io.File
-import java.nio.file.Files
+import java.nio.file.Files.move
 import java.nio.file.Paths
 import java.nio.file.StandardCopyOption
 
@@ -328,7 +328,7 @@ fun serializeModuleIntoKlib(
     dependencies: List<CompiledModule>,
     moduleFragment: IrModuleFragment
 ) {
-    val declarationTable = JsDeclarationTable(moduleFragment.irBuiltins, DescriptorTable()).apply { loadKnownBuiltins() }
+    val declarationTable = JsDeclarationTable(moduleFragment.irBuiltins, DescriptorTable())
 
     val serializedIr = JsIrModuleSerializer(logggg, declarationTable).serializedIrModule(moduleFragment)
     val serializer = JsKlibMetadataSerializationUtil
@@ -355,7 +355,7 @@ fun serializeModuleIntoKlib(
 
     val irDeclarationDir = File(klibDir, declarationsDirName).also { it.mkdir() }
     val irCombinedFile = File(irDeclarationDir, "irCombined.knd")
-    Files.copy(Paths.get(serializedIr.combinedDeclarationFilePath), Paths.get(irCombinedFile.path), StandardCopyOption.REPLACE_EXISTING)
+    move(Paths.get(serializedIr.combinedDeclarationFilePath), Paths.get(irCombinedFile.path), StandardCopyOption.REPLACE_EXISTING)
 
     File(klibDir, "${moduleDescription.name}.${JsKlibMetadataSerializationUtil.CLASS_METADATA_FILE_EXTENSION}").also {
         it.writeBytes(serializedData.asByteArray())

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

@@ -11,11 +11,9 @@ class JsDeclarationTable(builtIns: IrBuiltIns, descriptorTable: DescriptorTable)
 
     override var currentIndex = 0x1_0000_0000L
 
-    private /* lateinit */ var FUNCTION_INDEX_START: Long = 0xdeadbeefL
+    private val FUNCTION_INDEX_START: Long = loadKnownBuiltins()
 
-    override fun loadKnownBuiltins() {
-        super.loadKnownBuiltins()
-        FUNCTION_INDEX_START = currentIndex
+    init {
         currentIndex += BUILT_IN_UNIQ_ID_GAP
     }
 

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

@@ -18,25 +18,13 @@ class JsIrLinker(
     logger: LoggingContext,
     builtIns: IrBuiltIns,
     symbolTable: SymbolTable) :
-    KotlinIrLinker(currentModule, logger, builtIns, symbolTable, null),
+    KotlinIrLinker(logger, builtIns, symbolTable, null, 0x1_0000_0000L),
     DescriptorUniqIdAware by JsDescriptorUniqIdAware {
 
-    private val FUNCTION_INDEX_START: Long
+    private val FUNCTION_INDEX_START: Long = indexAfterKnownBuiltins
+
     val moduleToReaderMap = mutableMapOf<ModuleDescriptor, CombinedIrFileReader>()
 
-    init {
-        // TODO: think about order
-        var currentIndex = 0x1_0000_0000L
-        builtIns.knownBuiltins.forEach {
-            require(it is IrFunction)
-            deserializedSymbols.put(UniqIdKey(null, UniqId(currentIndex, isLocal = false)), it.symbol)
-            assert(symbolTable.referenceSimpleFunction(it.descriptor) == it.symbol)
-            currentIndex++
-        }
-
-        FUNCTION_INDEX_START = currentIndex
-    }
-
     override fun getPrimitiveTypeOrNull(symbol: IrClassifierSymbol, hasQuestionMark: Boolean) =
         builtIns.getPrimitiveTypeOrNullByDescriptor(symbol.descriptor, hasQuestionMark)
 

generators/tests/org/jetbrains/kotlin/generators/protobuf/GenerateProtoBuf.kt

@@ -58,7 +58,6 @@ val PROTO_PATHS: List<ProtoPath> = listOf(
         ProtoPath("core/metadata.jvm/src/jvm_metadata.proto"),
         ProtoPath("core/metadata.jvm/src/jvm_module.proto"),
         ProtoPath("build-common/src/java_descriptors.proto"),
-        //ProtoPath("compiler/ir/backend.js/src/ir.proto", false),
         ProtoPath("compiler/ir/backend.js/src/js.proto", false),
         ProtoPath("compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/serialization/KotlinIr.proto", false)
 )