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/*
* Copyright 2010-2023 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.backend.jvm
import org.jetbrains.kotlin.backend.common.extensions.FirIncompatiblePluginAPI
import org.jetbrains.kotlin.backend.common.extensions.IrGenerationExtension
import org.jetbrains.kotlin.backend.common.extensions.IrPluginContext
import org.jetbrains.kotlin.backend.common.extensions.IrPluginContextImpl
import org.jetbrains.kotlin.backend.common.linkage.issues.checkNoUnboundSymbols
import org.jetbrains.kotlin.backend.common.phaser.CompilerPhase
import org.jetbrains.kotlin.backend.common.phaser.PhaseConfig
import org.jetbrains.kotlin.backend.common.phaser.invokeToplevel
import org.jetbrains.kotlin.backend.common.serialization.DescriptorByIdSignatureFinderImpl
import org.jetbrains.kotlin.backend.jvm.codegen.EnumEntriesIntrinsicMappingsCacheImpl
import org.jetbrains.kotlin.backend.jvm.codegen.JvmIrIntrinsicExtension
import org.jetbrains.kotlin.backend.jvm.intrinsics.IrIntrinsicMethods
import org.jetbrains.kotlin.backend.jvm.ir.getIoFile
import org.jetbrains.kotlin.backend.jvm.ir.getKtFile
import org.jetbrains.kotlin.backend.jvm.serialization.DisabledIdSignatureDescriptor
import org.jetbrains.kotlin.backend.jvm.serialization.JvmIdSignatureDescriptor
import org.jetbrains.kotlin.codegen.CodegenFactory
import org.jetbrains.kotlin.codegen.addCompiledPartsAndSort
import org.jetbrains.kotlin.codegen.loadCompiledModule
import org.jetbrains.kotlin.codegen.state.GenerationState
import org.jetbrains.kotlin.config.CompilerConfiguration
import org.jetbrains.kotlin.config.JVMConfigurationKeys
import org.jetbrains.kotlin.config.JvmSerializeIrMode
import org.jetbrains.kotlin.descriptors.ModuleDescriptor
import org.jetbrains.kotlin.diagnostics.impl.BaseDiagnosticsCollector
import org.jetbrains.kotlin.idea.MainFunctionDetector
import org.jetbrains.kotlin.ir.IrBuiltIns
import org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI
import org.jetbrains.kotlin.ir.backend.jvm.serialization.JvmDescriptorMangler
import org.jetbrains.kotlin.ir.backend.jvm.serialization.JvmIrLinker
import org.jetbrains.kotlin.ir.builders.TranslationPluginContext
import org.jetbrains.kotlin.ir.declarations.IrFile
import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
import org.jetbrains.kotlin.ir.declarations.impl.IrFactoryImpl
import org.jetbrains.kotlin.ir.declarations.impl.IrModuleFragmentImpl
import org.jetbrains.kotlin.ir.linkage.IrProvider
import org.jetbrains.kotlin.ir.symbols.IrFunctionSymbol
import org.jetbrains.kotlin.ir.util.*
import org.jetbrains.kotlin.library.metadata.DeserializedKlibModuleOrigin
import org.jetbrains.kotlin.library.metadata.KlibModuleOrigin
import org.jetbrains.kotlin.metadata.jvm.JvmModuleProtoBuf
import org.jetbrains.kotlin.psi.KtFile
import org.jetbrains.kotlin.psi2ir.Psi2IrConfiguration
import org.jetbrains.kotlin.psi2ir.Psi2IrTranslator
import org.jetbrains.kotlin.psi2ir.descriptors.IrBuiltInsOverDescriptors
import org.jetbrains.kotlin.psi2ir.generators.DeclarationStubGeneratorForNotFoundClasses
import org.jetbrains.kotlin.psi2ir.generators.DeclarationStubGeneratorImpl
import org.jetbrains.kotlin.psi2ir.generators.fragments.EvaluatorFragmentInfo
import org.jetbrains.kotlin.psi2ir.generators.fragments.FragmentContext
import org.jetbrains.kotlin.psi2ir.preprocessing.SourceDeclarationsPreprocessor
import org.jetbrains.kotlin.resolve.CleanableBindingContext
import org.jetbrains.kotlin.serialization.StringTableImpl
import org.jetbrains.kotlin.utils.IDEAPlatforms
import org.jetbrains.kotlin.utils.IDEAPluginsCompatibilityAPI
open class JvmIrCodegenFactory(
configuration: CompilerConfiguration,
private val phaseConfig: PhaseConfig?,
private val externalMangler: JvmDescriptorMangler? = null,
private val externalSymbolTable: SymbolTable? = null,
private val jvmGeneratorExtensions: JvmGeneratorExtensionsImpl = JvmGeneratorExtensionsImpl(configuration),
private val evaluatorFragmentInfoForPsi2Ir: EvaluatorFragmentInfo? = null,
private val ideCodegenSettings: IdeCodegenSettings = IdeCodegenSettings(),
) : CodegenFactory {
@IDEAPluginsCompatibilityAPI(IDEAPlatforms._221, message = "Please migrate to the other constructor", plugins = "Android Studio")
constructor(
configuration: CompilerConfiguration,
phaseConfig: PhaseConfig?,
externalMangler: JvmDescriptorMangler? = null,
externalSymbolTable: SymbolTable? = null,
jvmGeneratorExtensions: JvmGeneratorExtensionsImpl = JvmGeneratorExtensionsImpl(configuration),
@Suppress("UNUSED_PARAMETER")
prefixPhases: CompilerPhase? = null,
evaluatorFragmentInfoForPsi2Ir: EvaluatorFragmentInfo? = null,
shouldStubAndNotLinkUnboundSymbols: Boolean = false,
) : this(
configuration,
phaseConfig,
externalMangler,
externalSymbolTable,
jvmGeneratorExtensions,
evaluatorFragmentInfoForPsi2Ir,
IdeCodegenSettings(shouldStubAndNotLinkUnboundSymbols = shouldStubAndNotLinkUnboundSymbols),
)
/**
* @param shouldStubAndNotLinkUnboundSymbols
* must be `true` only if current compilation is done in the context of the "Evaluate Expression"
* process in the debugger or "Android LiveEdit plugin".
* When enabled, this option disables the linkage process and generates stubs for all unbound symbols.
* @param shouldStubOrphanedExpectSymbols See [stubOrphanedExpectSymbols].
* @param shouldReferenceUndiscoveredExpectSymbols See [referenceUndiscoveredExpectSymbols].
* @param shouldDeduplicateBuiltInSymbols See [SymbolTableWithBuiltInsDeduplication].
* @param doNotLoadDependencyModuleHeaders
* must be `true` only if current compilation is done in the context of the "Evaluate Expression" process in the debugger.
* When enabled, this option disables all compiler plugins.
*/
data class IdeCodegenSettings(
val shouldStubAndNotLinkUnboundSymbols: Boolean = false,
val shouldStubOrphanedExpectSymbols: Boolean = false,
val shouldReferenceUndiscoveredExpectSymbols: Boolean = false,
val shouldDeduplicateBuiltInSymbols: Boolean = false,
val doNotLoadDependencyModuleHeaders: Boolean = false,
) {
init {
if (shouldDeduplicateBuiltInSymbols && !shouldStubAndNotLinkUnboundSymbols) {
throw IllegalStateException(
"`shouldDeduplicateBuiltInSymbols` depends on `shouldStubAndNotLinkUnboundSymbols` being enabled. Deduplication of" +
" built-in symbols hasn't been tested without stubbing and there is currently no use case for it without stubbing."
)
}
}
}
data class JvmIrBackendInput(
val irModuleFragment: IrModuleFragment,
val symbolTable: SymbolTable,
val phaseConfig: PhaseConfig?,
val irProviders: List,
val extensions: JvmGeneratorExtensions,
val backendExtension: JvmBackendExtension,
val pluginContext: IrPluginContext?,
val notifyCodegenStart: () -> Unit,
) : CodegenFactory.BackendInput
private data class JvmIrCodegenInput(
override val state: GenerationState,
val context: JvmBackendContext,
val module: IrModuleFragment,
val notifyCodegenStart: () -> Unit,
) : CodegenFactory.CodegenInput
@OptIn(ObsoleteDescriptorBasedAPI::class)
override fun convertToIr(input: CodegenFactory.IrConversionInput): JvmIrBackendInput {
val enableIdSignatures =
input.configuration.getBoolean(JVMConfigurationKeys.LINK_VIA_SIGNATURES) ||
input.configuration[JVMConfigurationKeys.SERIALIZE_IR, JvmSerializeIrMode.NONE] != JvmSerializeIrMode.NONE ||
input.configuration[JVMConfigurationKeys.KLIB_PATHS, emptyList()].isNotEmpty()
val (mangler, symbolTable) =
if (externalSymbolTable != null) externalMangler!! to externalSymbolTable
else {
val mangler = JvmDescriptorMangler(MainFunctionDetector(input.bindingContext, input.languageVersionSettings))
val signaturer =
if (enableIdSignatures) JvmIdSignatureDescriptor(mangler)
else DisabledIdSignatureDescriptor
val symbolTable = when {
ideCodegenSettings.shouldDeduplicateBuiltInSymbols -> SymbolTableWithBuiltInsDeduplication(signaturer, IrFactoryImpl)
else -> SymbolTable(signaturer, IrFactoryImpl)
}
mangler to symbolTable
}
val messageLogger = input.configuration.irMessageLogger
val psi2ir = Psi2IrTranslator(
input.languageVersionSettings,
Psi2IrConfiguration(
input.ignoreErrors,
partialLinkageEnabled = false,
input.skipBodies
),
messageLogger::checkNoUnboundSymbols
)
val psi2irContext = psi2ir.createGeneratorContext(
input.module,
input.bindingContext,
symbolTable,
jvmGeneratorExtensions,
fragmentContext = if (evaluatorFragmentInfoForPsi2Ir != null) FragmentContext() else null,
)
// Built-ins deduplication must be enabled immediately so that there is no chance for duplicate built-in symbols to occur. For
// example, the creation of `IrPluginContextImpl` might already lead to duplicate built-in symbols via `BuiltinSymbolsBase`.
if (symbolTable is SymbolTableWithBuiltInsDeduplication) {
(psi2irContext.irBuiltIns as? IrBuiltInsOverDescriptors)?.let { symbolTable.bindIrBuiltIns(it) }
}
val pluginExtensions = IrGenerationExtension.getInstances(input.project)
val stubGenerator =
DeclarationStubGeneratorImpl(
psi2irContext.moduleDescriptor, symbolTable, psi2irContext.irBuiltIns,
DescriptorByIdSignatureFinderImpl(psi2irContext.moduleDescriptor, mangler),
jvmGeneratorExtensions
)
val frontEndContext = object : TranslationPluginContext {
override val moduleDescriptor: ModuleDescriptor
get() = psi2irContext.moduleDescriptor
override val symbolTable: ReferenceSymbolTable
get() = symbolTable
override val typeTranslator: TypeTranslator
get() = psi2irContext.typeTranslator
override val irBuiltIns: IrBuiltIns
get() = psi2irContext.irBuiltIns
}
val irLinker = JvmIrLinker(
psi2irContext.moduleDescriptor,
messageLogger,
JvmIrTypeSystemContext(psi2irContext.irBuiltIns),
symbolTable,
frontEndContext,
stubGenerator,
mangler,
enableIdSignatures,
)
SourceDeclarationsPreprocessor(psi2irContext).run(input.files)
// The plugin context contains unbound symbols right after construction and has to be
// instantiated before we resolve unbound symbols and invoke any postprocessing steps.
val pluginContext = IrPluginContextImpl(
psi2irContext.moduleDescriptor,
psi2irContext.bindingContext,
psi2irContext.languageVersionSettings,
symbolTable,
psi2irContext.typeTranslator,
psi2irContext.irBuiltIns,
irLinker,
messageLogger
).takeIf { !ideCodegenSettings.doNotLoadDependencyModuleHeaders }
if (pluginExtensions.isNotEmpty() && pluginContext != null) {
for (extension in pluginExtensions) {
if (psi2irContext.configuration.generateBodies ||
@OptIn(FirIncompatiblePluginAPI::class) extension.shouldAlsoBeAppliedInKaptStubGenerationMode
) {
psi2ir.addPostprocessingStep { module ->
val old = stubGenerator.unboundSymbolGeneration
try {
stubGenerator.unboundSymbolGeneration = true
extension.generate(module, pluginContext)
} finally {
stubGenerator.unboundSymbolGeneration = old
}
}
}
}
}
val dependencies = if (ideCodegenSettings.doNotLoadDependencyModuleHeaders) {
emptyList()
} else {
psi2irContext.moduleDescriptor.collectAllDependencyModulesTransitively().map {
val kotlinLibrary = (it.getCapability(KlibModuleOrigin.CAPABILITY) as? DeserializedKlibModuleOrigin)?.library
irLinker.deserializeIrModuleHeader(it, kotlinLibrary, _moduleName = it.name.asString())
}
}
val irProviders = if (ideCodegenSettings.shouldStubAndNotLinkUnboundSymbols) {
listOf(stubGenerator)
} else {
val stubGeneratorForMissingClasses = DeclarationStubGeneratorForNotFoundClasses(stubGenerator)
listOf(irLinker, stubGeneratorForMissingClasses)
}
if (ideCodegenSettings.shouldReferenceUndiscoveredExpectSymbols) {
symbolTable.referenceUndiscoveredExpectSymbols(input.files, input.bindingContext)
}
val irModuleFragment =
psi2ir.generateModuleFragment(
psi2irContext,
input.files,
irProviders,
pluginExtensions,
fragmentInfo = evaluatorFragmentInfoForPsi2Ir
)
irLinker.postProcess(inOrAfterLinkageStep = true)
irLinker.clear()
stubGenerator.unboundSymbolGeneration = true
// We need to compile all files we reference in Klibs
irModuleFragment.files.addAll(dependencies.flatMap { it.files })
if (ideCodegenSettings.shouldStubOrphanedExpectSymbols) {
irModuleFragment.stubOrphanedExpectSymbols(stubGenerator)
}
if (!input.configuration.getBoolean(JVMConfigurationKeys.DO_NOT_CLEAR_BINDING_CONTEXT)) {
val originalBindingContext = input.bindingContext as? CleanableBindingContext
?: error("BindingContext should be cleanable in JVM IR to avoid leaking memory: ${input.bindingContext}")
originalBindingContext.clear()
}
return JvmIrBackendInput(
irModuleFragment,
symbolTable,
phaseConfig,
irProviders,
jvmGeneratorExtensions,
JvmBackendExtension.Default,
pluginContext,
) {}
}
private fun ModuleDescriptor.collectAllDependencyModulesTransitively(): List {
val result = LinkedHashSet()
fun collectImpl(descriptor: ModuleDescriptor) {
val dependencies = descriptor.allDependencyModules
dependencies.forEach { if (result.add(it)) collectImpl(it) }
}
collectImpl(this)
return result.toList()
}
override fun getModuleChunkBackendInput(
wholeBackendInput: CodegenFactory.BackendInput,
sourceFiles: Collection,
): CodegenFactory.BackendInput {
wholeBackendInput as JvmIrBackendInput
val moduleChunk = sourceFiles.toSet()
val wholeModule = wholeBackendInput.irModuleFragment
val moduleCopy = IrModuleFragmentImpl(wholeModule.descriptor, wholeModule.irBuiltins)
wholeModule.files.filterTo(moduleCopy.files) { file ->
file.getKtFile() in moduleChunk
}
return wholeBackendInput.copy(moduleCopy)
}
override fun invokeLowerings(state: GenerationState, input: CodegenFactory.BackendInput): CodegenFactory.CodegenInput {
val (irModuleFragment, symbolTable, customPhaseConfig, irProviders, extensions, backendExtension, irPluginContext, notifyCodegenStart) =
input as JvmIrBackendInput
val irSerializer = if (
state.configuration.get(JVMConfigurationKeys.SERIALIZE_IR, JvmSerializeIrMode.NONE) != JvmSerializeIrMode.NONE
)
JvmIrSerializerImpl(state.configuration)
else null
val phases = if (evaluatorFragmentInfoForPsi2Ir != null) jvmFragmentLoweringPhases else jvmLoweringPhases
val phaseConfig = customPhaseConfig ?: PhaseConfig(phases)
val context = JvmBackendContext(
state, irModuleFragment.irBuiltins, symbolTable, phaseConfig, extensions,
backendExtension, irSerializer, JvmIrDeserializerImpl(), irProviders, irPluginContext
)
if (evaluatorFragmentInfoForPsi2Ir != null) {
context.localDeclarationsLoweringData = mutableMapOf()
}
val generationExtensions = IrGenerationExtension.getInstances(state.project)
.mapNotNull { it.getPlatformIntrinsicExtension(context) as? JvmIrIntrinsicExtension }
val intrinsics by lazy { IrIntrinsicMethods(irModuleFragment.irBuiltins, context.ir.symbols) }
context.getIntrinsic = { symbol: IrFunctionSymbol ->
intrinsics.getIntrinsic(symbol) ?: generationExtensions.firstNotNullOfOrNull { it.getIntrinsic(symbol) }
}
context.enumEntriesIntrinsicMappingsCache = EnumEntriesIntrinsicMappingsCacheImpl(context)
/* JvmBackendContext creates new unbound symbols, have to resolve them. */
ExternalDependenciesGenerator(symbolTable, irProviders).generateUnboundSymbolsAsDependencies()
context.state.factory.registerSourceFiles(irModuleFragment.files.map(IrFile::getIoFile))
phases.invokeToplevel(phaseConfig, context, irModuleFragment)
return JvmIrCodegenInput(state, context, irModuleFragment, notifyCodegenStart)
}
override fun invokeCodegen(input: CodegenFactory.CodegenInput) {
val (state, context, module, notifyCodegenStart) = input as JvmIrCodegenInput
fun hasErrors() = (state.diagnosticReporter as? BaseDiagnosticsCollector)?.hasErrors == true
if (hasErrors()) return
notifyCodegenStart()
jvmCodegenPhases.invokeToplevel(PhaseConfig(jvmCodegenPhases), context, module)
if (hasErrors()) return
// TODO: split classes into groups connected by inline calls; call this after every group
// and clear `JvmBackendContext.classCodegens`
state.afterIndependentPart()
generateModuleMetadata(input)
}
private fun generateModuleMetadata(result: CodegenFactory.CodegenInput) {
val backendContext = (result as JvmIrCodegenInput).context
val builder = JvmModuleProtoBuf.Module.newBuilder()
val stringTable = StringTableImpl()
backendContext.state.loadCompiledModule()?.moduleData?.run {
// In incremental compilation scenario, we might already have some serialized optionalAnnotations from the previous run
// In this case, we first initialize string table with the serialized one
// See jps/jps-plugin/testData/incremental/multiModule/multiplatform/custom/modifyOptionalAnnotationUsage for example
val nameResolver = nameResolver
repeat(nameResolver.strings.stringCount) { stringIndex ->
stringTable.addString(nameResolver.strings.getString(stringIndex))
}
repeat(nameResolver.qualifiedNames.qualifiedNameCount) { nameIndex ->
val qualifiedName = nameResolver.qualifiedNames.getQualifiedName(nameIndex)
stringTable.addQualifiedName(qualifiedName)
}
// Then add the annotations themselves, unless they are in dirty sources, i.e. contained in backendContext.optionalAnnotations
for (proto in optionalAnnotations) {
val name = nameResolver.getQualifiedClassName(proto.fqName)
if (backendContext.optionalAnnotations.none { metadata -> metadata.name?.asString() == name }) {
builder.addOptionalAnnotationClass(proto)
}
}
}
for (part in backendContext.state.factory.packagePartRegistry.parts.values.addCompiledPartsAndSort(backendContext.state)) {
part.addTo(builder)
}
for (metadata in backendContext.optionalAnnotations) {
val serializer = backendContext.backendExtension.createModuleMetadataSerializer(backendContext)
builder.addOptionalAnnotationClass(serializer.serializeOptionalAnnotationClass(metadata, stringTable))
}
val (stringTableProto, qualifiedNameTableProto) = stringTable.buildProto()
builder.setStringTable(stringTableProto)
builder.setQualifiedNameTable(qualifiedNameTableProto)
backendContext.state.factory.setModuleMapping(builder.build())
}
fun generateModuleInFrontendIRMode(
state: GenerationState,
irModuleFragment: IrModuleFragment,
symbolTable: SymbolTable,
irProviders: List,
extensions: JvmGeneratorExtensions,
backendExtension: JvmBackendExtension,
irPluginContext: IrPluginContext,
notifyCodegenStart: () -> Unit = {},
) {
generateModule(
state,
JvmIrBackendInput(
irModuleFragment,
symbolTable,
phaseConfig,
irProviders,
extensions,
backendExtension,
irPluginContext,
notifyCodegenStart
)
)
}
}