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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.fir.serialization
import org.jetbrains.kotlin.builtins.StandardNames
import org.jetbrains.kotlin.builtins.functions.FunctionTypeKind
import org.jetbrains.kotlin.builtins.functions.isBuiltin
import org.jetbrains.kotlin.config.LanguageFeature
import org.jetbrains.kotlin.config.LanguageVersion
import org.jetbrains.kotlin.config.LanguageVersionSettings
import org.jetbrains.kotlin.constant.AnnotationValue
import org.jetbrains.kotlin.constant.EnumValue
import org.jetbrains.kotlin.constant.IntValue
import org.jetbrains.kotlin.descriptors.*
import org.jetbrains.kotlin.descriptors.annotations.AnnotationUseSiteTarget
import org.jetbrains.kotlin.fir.*
import org.jetbrains.kotlin.fir.declarations.*
import org.jetbrains.kotlin.fir.declarations.comparators.FirCallableDeclarationComparator
import org.jetbrains.kotlin.fir.declarations.comparators.FirMemberDeclarationComparator
import org.jetbrains.kotlin.fir.declarations.impl.FirDefaultPropertyAccessor
import org.jetbrains.kotlin.fir.declarations.impl.FirDefaultPropertyGetter
import org.jetbrains.kotlin.fir.declarations.impl.FirDefaultPropertySetter
import org.jetbrains.kotlin.fir.declarations.utils.*
import org.jetbrains.kotlin.fir.deserialization.projection
import org.jetbrains.kotlin.fir.expressions.*
import org.jetbrains.kotlin.fir.expressions.builder.buildAnnotation
import org.jetbrains.kotlin.fir.expressions.builder.buildAnnotationArgumentMapping
import org.jetbrains.kotlin.fir.expressions.builder.buildLiteralExpression
import org.jetbrains.kotlin.fir.expressions.impl.FirEmptyAnnotationArgumentMapping
import org.jetbrains.kotlin.fir.extensions.FirExtensionApiInternals
import org.jetbrains.kotlin.fir.extensions.extensionService
import org.jetbrains.kotlin.fir.extensions.typeAttributeExtensions
import org.jetbrains.kotlin.fir.resolve.ScopeSession
import org.jetbrains.kotlin.fir.resolve.fullyExpandedType
import org.jetbrains.kotlin.fir.resolve.providers.symbolProvider
import org.jetbrains.kotlin.fir.resolve.toSymbol
import org.jetbrains.kotlin.fir.scopes.*
import org.jetbrains.kotlin.fir.scopes.impl.FirScriptDeclarationsScope
import org.jetbrains.kotlin.fir.scopes.impl.nestedClassifierScope
import org.jetbrains.kotlin.fir.serialization.constant.hasConstantValue
import org.jetbrains.kotlin.fir.serialization.constant.toConstantValue
import org.jetbrains.kotlin.fir.symbols.impl.*
import org.jetbrains.kotlin.fir.types.*
import org.jetbrains.kotlin.fir.types.builder.buildResolvedTypeRef
import org.jetbrains.kotlin.fir.types.impl.ConeClassLikeTypeImpl
import org.jetbrains.kotlin.fir.types.impl.FirImplicitNullableAnyTypeRef
import org.jetbrains.kotlin.metadata.ProtoBuf
import org.jetbrains.kotlin.metadata.ProtoBuf.MemberKind
import org.jetbrains.kotlin.metadata.deserialization.Flags
import org.jetbrains.kotlin.metadata.deserialization.VersionRequirement
import org.jetbrains.kotlin.metadata.deserialization.isKotlin1Dot4OrLater
import org.jetbrains.kotlin.metadata.serialization.Interner
import org.jetbrains.kotlin.metadata.serialization.MutableTypeTable
import org.jetbrains.kotlin.metadata.serialization.MutableVersionRequirementTable
import org.jetbrains.kotlin.name.*
import org.jetbrains.kotlin.protobuf.GeneratedMessageLite
import org.jetbrains.kotlin.resolve.RequireKotlinConstants
import org.jetbrains.kotlin.serialization.deserialization.ProtoEnumFlags
import org.jetbrains.kotlin.types.AbstractTypeApproximator
import org.jetbrains.kotlin.types.ConstantValueKind
import org.jetbrains.kotlin.types.TypeApproximatorConfiguration
import org.jetbrains.kotlin.utils.addIfNotNull
import org.jetbrains.kotlin.utils.addToStdlib.runIf
import org.jetbrains.kotlin.utils.mapToIndex
class FirElementSerializer private constructor(
private val session: FirSession,
private val scopeSession: ScopeSession,
private val currentDeclaration: FirDeclaration?,
private val typeParameters: Interner,
private val extension: FirSerializerExtension,
val typeTable: MutableTypeTable,
private val versionRequirementTable: MutableVersionRequirementTable?,
private val serializeTypeTableToFunction: Boolean,
private val typeApproximator: AbstractTypeApproximator,
private val languageVersionSettings: LanguageVersionSettings,
private val produceHeaderKlib: Boolean,
) {
private val contractSerializer = FirContractSerializer()
private val providedDeclarationsService = session.providedDeclarationsForMetadataService
private var metDefinitelyNotNullType: Boolean = false
fun packagePartProto(file: FirFile, actualizedExpectDeclarations: Set?): ProtoBuf.Package.Builder {
val builder = ProtoBuf.Package.newBuilder()
fun addDeclaration(declaration: FirDeclaration, onUnsupportedDeclaration: (FirDeclaration) -> Unit) {
if (declaration is FirMemberDeclaration) {
if (!declaration.isNotExpectOrShouldBeSerialized(actualizedExpectDeclarations)) return
if (!declaration.isNotPrivateOrShouldBeSerialized(produceHeaderKlib)) return
when (declaration) {
is FirProperty -> propertyProto(declaration)?.let { builder.addProperty(it) }
is FirSimpleFunction -> functionProto(declaration)?.let { builder.addFunction(it) }
is FirTypeAlias -> typeAliasProto(declaration)?.let { builder.addTypeAlias(it) }
else -> onUnsupportedDeclaration(declaration)
}
} else {
onUnsupportedDeclaration(declaration)
}
}
extension.processFile(file) {
for (declaration in file.declarations) {
addDeclaration(declaration) {}
}
}
val packageFqName = file.packageFqName
// TODO: figure out how to extract all file dependent processing from `serializePackage`
extension.serializePackage(packageFqName, builder)
// Next block will process declarations from plugins.
// Such declarations don't belong to any file, so there is no need to call `extension.processFile`.
for (declaration in providedDeclarationsService.getProvidedTopLevelDeclarations(packageFqName, scopeSession)) {
addDeclaration(declaration) {
error("Unsupported top-level declaration type: ${it.render()}")
}
}
typeTable.serialize()?.let { builder.typeTable = it }
versionRequirementTable?.serialize()?.let { builder.versionRequirementTable = it }
return builder
}
fun classProto(klass: FirClass): ProtoBuf.Class.Builder = whileAnalysing(session, klass) {
val builder = ProtoBuf.Class.newBuilder()
val regularClass = klass as? FirRegularClass
val modality = regularClass?.modality ?: Modality.FINAL
val hasEnumEntries = klass.classKind == ClassKind.ENUM_CLASS && languageVersionSettings.supportsFeature(LanguageFeature.EnumEntries)
val flags = Flags.getClassFlags(
klass.nonSourceAnnotations(session).isNotEmpty() || extension.hasAdditionalAnnotations(klass),
ProtoEnumFlags.visibility(regularClass?.let { normalizeVisibility(it) } ?: Visibilities.Local),
ProtoEnumFlags.modality(modality),
ProtoEnumFlags.classKind(klass.classKind, regularClass?.isCompanion == true),
regularClass?.isInner == true,
regularClass?.isData == true,
regularClass?.isExternal == true,
regularClass?.isExpect == true,
regularClass?.isInline == true,
regularClass?.isFun == true,
hasEnumEntries,
)
if (flags != builder.flags) {
builder.flags = flags
}
builder.fqName = getClassifierId(klass)
for (typeParameter in klass.typeParameters) {
if (typeParameter !is FirTypeParameter) continue
builder.addTypeParameter(typeParameterProto(typeParameter))
}
val classSymbol = klass.symbol
val classId = classSymbol.classId
if (classId != StandardClassIds.Any && classId != StandardClassIds.Nothing) {
// Special classes (Any, Nothing) have no supertypes
for (superTypeRef in klass.superTypeRefs) {
if (useTypeTable()) {
builder.addSupertypeId(typeId(superTypeRef))
} else {
builder.addSupertype(typeProto(superTypeRef))
}
}
}
/*
* Order of constructors:
* - declared constructors in declaration order
* - generated constructors in sorted order
* - provided constructors in sorted order
*/
if (regularClass != null && regularClass.classKind != ClassKind.ENUM_ENTRY) {
for (constructor in regularClass.constructors()) {
if (!constructor.isNotPrivateOrShouldBeSerialized(produceHeaderKlib)) continue
builder.addConstructor(constructorProto(constructor))
}
val providedConstructors = providedDeclarationsService
.getProvidedConstructors(classSymbol, scopeSession)
.sortedWith(FirCallableDeclarationComparator)
for (constructor in providedConstructors) {
builder.addConstructor(constructorProto(constructor))
}
}
val providedCallables = providedDeclarationsService
.getProvidedCallables(classSymbol, scopeSession)
.sortedWith(FirCallableDeclarationComparator)
/*
* Order of callables:
* - declared callable in declaration order
* - generated callable in sorted order
* - provided callable in sorted order
*/
val callableMembers = (klass.memberDeclarations() + providedCallables)
for (declaration in callableMembers) {
if (declaration !is FirEnumEntry && declaration.isStatic) continue // ??? Miss values() & valueOf()
if (!declaration.isNotPrivateOrShouldBeSerialized(produceHeaderKlib)) continue
when (declaration) {
is FirProperty -> propertyProto(declaration)?.let { builder.addProperty(it) }
is FirSimpleFunction -> functionProto(declaration)?.let { builder.addFunction(it) }
is FirEnumEntry -> enumEntryProto(declaration).let { builder.addEnumEntry(it) }
else -> {}
}
}
val nestedClassifiers = computeNestedClassifiersForClass(classSymbol)
for (nestedClassifier in nestedClassifiers) {
if (nestedClassifier is FirTypeAliasSymbol) {
typeAliasProto(nestedClassifier.fir)?.let { builder.addTypeAlias(it) }
} else if (nestedClassifier is FirRegularClassSymbol) {
builder.addNestedClassName(getSimpleNameIndex(nestedClassifier.name))
}
}
if (klass is FirRegularClass && klass.modality == Modality.SEALED) {
val inheritors = klass.getSealedClassInheritors(session)
for (inheritorId in inheritors) {
builder.addSealedSubclassFqName(stringTable.getQualifiedClassNameIndex(inheritorId))
}
}
val companionObject = regularClass?.companionObjectSymbol?.fir
if (companionObject != null) {
builder.companionObjectName = getSimpleNameIndex(companionObject.name)
}
when (val representation = (klass as? FirRegularClass)?.valueClassRepresentation) {
is InlineClassRepresentation -> {
builder.inlineClassUnderlyingPropertyName = getSimpleNameIndex(representation.underlyingPropertyName)
val property = callableMembers.single {
it is FirProperty && it.receiverParameter == null && it.name == representation.underlyingPropertyName
}
if (!property.visibility.isPublicAPI) {
if (useTypeTable()) {
builder.inlineClassUnderlyingTypeId = typeId(representation.underlyingType)
} else {
builder.setInlineClassUnderlyingType(typeProto(representation.underlyingType))
}
}
}
is MultiFieldValueClassRepresentation -> {
val namesToTypes = representation.underlyingPropertyNamesToTypes
builder.addAllMultiFieldValueClassUnderlyingName(namesToTypes.map { (name, _) -> getSimpleNameIndex(name) })
if (useTypeTable()) {
builder.addAllMultiFieldValueClassUnderlyingTypeId(namesToTypes.map { (_, kotlinType) -> typeId(kotlinType) })
} else {
builder.addAllMultiFieldValueClassUnderlyingType(namesToTypes.map { (_, kotlinType) -> typeProto(kotlinType).build() })
}
}
null -> {}
}
if (klass is FirRegularClass) {
for (contextReceiver in klass.contextReceivers) {
val typeRef = contextReceiver.typeRef
if (useTypeTable()) {
builder.addContextReceiverTypeId(typeId(typeRef))
} else {
builder.addContextReceiverType(typeProto(contextReceiver.typeRef))
}
}
}
if (versionRequirementTable == null) error("Version requirements must be serialized for classes: ${klass.render()}")
builder.addAllVersionRequirement(versionRequirementTable.serializeVersionRequirements(klass))
extension.serializeClass(klass, builder, versionRequirementTable, this)
if (metDefinitelyNotNullType) {
builder.addVersionRequirement(
writeLanguageVersionRequirement(LanguageFeature.DefinitelyNonNullableTypes, versionRequirementTable)
)
}
typeTable.serialize()?.let { builder.typeTable = it }
versionRequirementTable.serialize()?.let { builder.versionRequirementTable = it }
if (klass is FirRegularClass) {
@OptIn(FirExtensionApiInternals::class)
for (plugin in session.extensionService.metadataSerializerPlugins) {
val protoRegistrar = object : FirMetadataSerializerPlugin.ProtoRegistrar {
override fun setExtension(
extension: GeneratedMessageLite.GeneratedExtension,
value: Type,
) {
builder.setExtension(extension, value)
}
}
plugin.registerProtoExtensions(klass.symbol, stringTable, protoRegistrar)
}
}
return builder
}
fun scriptProto(script: FirScript): ProtoBuf.Class.Builder = whileAnalysing(session, script) {
val builder = ProtoBuf.Class.newBuilder()
val flags = Flags.getClassFlags(
extension.hasAdditionalAnnotations(script),
ProtoEnumFlags.visibility(Visibilities.Public),
ProtoEnumFlags.modality(Modality.FINAL),
ProtoEnumFlags.classKind(ClassKind.CLASS, false),
/* inner = */ false,
/* isData = */ false,
/* isExternal = */ false,
/* isExpect = */ false,
/* isValue = */ false,
/* isFun = */ false,
/* hasEnumEntries = */ false,
)
if (flags != builder.flags) {
builder.flags = flags
}
val name = script.name.let {
if (it.isSpecial) {
NameUtils.getScriptNameForFile(it.asStringStripSpecialMarkers().removePrefix("script-"))
} else it
}
val classId = ClassId(script.symbol.fqName.parentOrNull() ?: FqName.ROOT, name)
builder.fqName = getClassifierId(classId)
val memberScope = FirScriptDeclarationsScope(session, script)
val callableMembers = buildList {
memberScope.processAllCallables { add(it.fir) }
}
for (declaration in callableMembers) {
when (declaration) {
is FirProperty -> propertyProto(declaration)?.let { builder.addProperty(it) }
is FirSimpleFunction -> functionProto(declaration)?.let { builder.addFunction(it) }
else -> {}
}
}
memberScope.getClassifierNames().forEach { classifierName ->
memberScope.processClassifiersByName(classifierName) { nestedClassifier ->
when (nestedClassifier) {
is FirRegularClassSymbol -> {
builder.addNestedClassName(getSimpleNameIndex(nestedClassifier.name))
}
else -> {}
}
}
}
for (contextReceiver in script.contextReceivers) {
val typeRef = contextReceiver.typeRef
if (useTypeTable()) {
builder.addContextReceiverTypeId(typeId(typeRef))
} else {
builder.addContextReceiverType(typeProto(contextReceiver.typeRef))
}
}
if (versionRequirementTable == null) error("Version requirements must be serialized for scripts: ${script.render()}")
builder.addAllVersionRequirement(versionRequirementTable.serializeVersionRequirements(script))
extension.serializeScript(script, builder, versionRequirementTable, this)
if (metDefinitelyNotNullType) {
builder.addVersionRequirement(
writeLanguageVersionRequirement(LanguageFeature.DefinitelyNonNullableTypes, versionRequirementTable)
)
}
typeTable.serialize()?.let { builder.typeTable = it }
versionRequirementTable.serialize()?.let { builder.versionRequirementTable = it }
return builder
}
/*
* Order of nested classifiers:
* - declared classifiers in declaration order
* - generated classifiers in sorted order
*/
fun computeNestedClassifiersForClass(classSymbol: FirClassSymbol<*>): List> {
val scope = session.nestedClassifierScope(classSymbol.fir) ?: return emptyList()
return buildList {
val indexByDeclaration = classSymbol.fir.declarations.filterIsInstance().mapToIndex()
val (declared, nonDeclared) = scope.getClassifierNames()
.mapNotNull { scope.getSingleClassifier(it)?.fir as FirClassLikeDeclaration? }
.partition { it in indexByDeclaration }
declared.sortedBy { indexByDeclaration.getValue(it) }.mapTo(this) { it.symbol }
nonDeclared.sortedWith(FirMemberDeclarationComparator).mapTo(this) { it.symbol }
}
}
private fun FirClass.memberDeclarations(): List {
return collectDeclarations> { memberScope, addDeclarationIfNeeded ->
memberScope.processAllFunctions { addDeclarationIfNeeded(it) }
memberScope.processAllProperties { addDeclarationIfNeeded(it) }
}
}
private fun FirClass.constructors(): List {
return collectDeclarations { memberScope, addDeclarationIfNeeded ->
memberScope.processDeclaredConstructors { addDeclarationIfNeeded(it) }
}
}
private inline fun > FirClass.collectDeclarations(
processScope: (FirTypeScope, ((S) -> Unit)) -> Unit
): List {
val foundInScope = buildList {
val memberScope = unsubstitutedScope(session, scopeSession, withForcedTypeCalculator = false, memberRequiredPhase = null)
processScope(memberScope) {
val declaration = it.fir as T
val dispatchReceiverLookupTag = declaration.dispatchReceiverClassLookupTagOrNull()
// Special case for data/value class equals/hashCode/toString, see KT-57510
val isFakeOverrideOfAnyFunctionInDataOrValueClass = this@collectDeclarations is FirRegularClass &&
([email protected] || [email protected]) &&
dispatchReceiverLookupTag?.classId == StandardClassIds.Any && !declaration.isFinal
// Related: https://youtrack.jetbrains.com/issue/KT-20427#focus=Comments-27-8652759.0-0
if (isFakeOverrideOfAnyFunctionInDataOrValueClass && [email protected] ||
!declaration.isSubstitutionOrIntersectionOverride &&
(declaration.isStatic || declaration is FirConstructor || dispatchReceiverLookupTag == [email protected]())
) {
add(declaration)
}
}
for (declaration in declarations) {
if (declaration is T && declaration.isStatic) {
add(declaration)
}
}
}
val indexByDeclaration = declarations.filterIsInstance().mapToIndex()
val (declared, nonDeclared) = foundInScope
.sortedBy { indexByDeclaration[it] ?: Int.MAX_VALUE }
.partition { it in indexByDeclaration }
return declared + nonDeclared.sortedWith(FirCallableDeclarationComparator)
}
private fun FirPropertyAccessor.nonSourceAnnotations(session: FirSession): List =
(this as FirAnnotationContainer).nonSourceAnnotations(session)
fun propertyProto(property: FirProperty): ProtoBuf.Property.Builder? = whileAnalysing(session, property) {
val builder = ProtoBuf.Property.newBuilder()
val local = createChildSerializer(property)
var hasGetter = false
var hasSetter = false
val hasAnnotations = property.nonSourceAnnotations(session).isNotEmpty()
|| property.backingField?.nonSourceAnnotations(session)?.isNotEmpty() == true
|| extension.hasAdditionalAnnotations(property)
|| property.backingField?.let { extension.hasAdditionalAnnotations(it) } == true
val modality = property.modality!!
val defaultAccessorFlags = Flags.getAccessorFlags(
hasAnnotations,
ProtoEnumFlags.visibility(normalizeVisibility(property)),
ProtoEnumFlags.modality(modality),
false, false, false
)
val getter = property.getter ?: with(property) {
if (origin == FirDeclarationOrigin.Delegated) {
// since we generate the default accessor on fir2ir anyway (Fir2IrDeclarationStorage.createIrProperty), we have to
// serialize it accordingly at least for delegates to fix issues like #KT-57373
// TODO: rewrite accordingly after fixing #KT-58233
FirDefaultPropertyGetter(source = null, moduleData, origin, returnTypeRef, visibility, symbol)
} else null
}
if (getter != null) {
hasGetter = true
val accessorFlags = getAccessorFlags(getter, property)
if (accessorFlags != defaultAccessorFlags) {
builder.getterFlags = accessorFlags
}
}
val setter = property.setter ?: with(property) {
if (origin == FirDeclarationOrigin.Delegated && isVar) {
// since we generate the default accessor on fir2ir anyway (Fir2IrDeclarationStorage.createIrProperty), we have to
// serialize it accordingly at least for delegates to fix issues like #KT-57373
// TODO: rewrite accordingly after fixing #KT-58233
FirDefaultPropertySetter(source = null, moduleData, origin, returnTypeRef, visibility, symbol)
} else null
}
if (setter != null) {
hasSetter = true
val accessorFlags = getAccessorFlags(setter, property)
if (accessorFlags != defaultAccessorFlags) {
builder.setterFlags = accessorFlags
}
val nonSourceAnnotations = setter.nonSourceAnnotations(session)
if (Flags.IS_NOT_DEFAULT.get(accessorFlags)) {
val setterLocal = local.createChildSerializer(setter)
for ((index, valueParameterDescriptor) in setter.valueParameters.withIndex()) {
val annotations = nonSourceAnnotations.filter { it.useSiteTarget == AnnotationUseSiteTarget.SETTER_PARAMETER }
builder.setSetterValueParameter(setterLocal.valueParameterProto(valueParameterDescriptor, index, setter, annotations))
}
}
}
val hasConstant = (!property.isVar
&& property.returnTypeRef.coneType.fullyExpandedType(session).canBeUsedForConstVal()
&& property.initializer.hasConstantValue(session))
|| property.isConst
val flags = Flags.getPropertyFlags(
hasAnnotations,
ProtoEnumFlags.visibility(normalizeVisibility(property)),
ProtoEnumFlags.modality(modality),
property.memberKind(),
property.isVar, hasGetter, hasSetter, hasConstant, property.isConst, property.isLateInit,
property.isExternal, property.delegateFieldSymbol != null, property.isExpect
)
if (flags != builder.flags) {
builder.flags = flags
}
builder.name = getSimpleNameIndex(property.name)
if (useTypeTable()) {
builder.returnTypeId = local.typeId(property.returnTypeRef)
} else {
builder.setReturnType(local.typeProto(property.returnTypeRef, toSuper = true))
}
for (typeParameter in property.typeParameters) {
builder.addTypeParameter(local.typeParameterProto(typeParameter))
}
for (contextReceiver in property.contextReceivers) {
val typeRef = contextReceiver.typeRef
if (useTypeTable()) {
builder.addContextReceiverTypeId(local.typeId(typeRef))
} else {
builder.addContextReceiverType(local.typeProto(contextReceiver.typeRef))
}
}
val receiverParameter = property.receiverParameter
if (receiverParameter != null) {
val receiverTypeRef = receiverParameter.typeRef
if (useTypeTable()) {
builder.receiverTypeId = local.typeId(receiverTypeRef)
} else {
builder.setReceiverType(local.typeProto(receiverTypeRef))
}
}
versionRequirementTable?.run {
builder.addAllVersionRequirement(serializeVersionRequirements(property))
if (local.metDefinitelyNotNullType) {
builder.addVersionRequirement(writeVersionRequirement(LanguageFeature.DefinitelyNonNullableTypes))
}
}
extension.serializeProperty(property, builder, versionRequirementTable, local)
return builder
}
private fun FirProperty.memberKind(): MemberKind {
return when (origin) {
FirDeclarationOrigin.Delegated -> MemberKind.DELEGATION
else -> MemberKind.DECLARATION
}
}
fun functionProto(function: FirFunction): ProtoBuf.Function.Builder? = whileAnalysing(session, function) {
val builder = ProtoBuf.Function.newBuilder()
val simpleFunction = function as? FirSimpleFunction
val local = createChildSerializer(function)
val flags = Flags.getFunctionFlags(
function.nonSourceAnnotations(session).isNotEmpty() || extension.hasAdditionalAnnotations(function),
ProtoEnumFlags.visibility(simpleFunction?.let { normalizeVisibility(it) } ?: Visibilities.Local),
ProtoEnumFlags.modality(simpleFunction?.modality ?: Modality.FINAL),
function.memberKind(),
simpleFunction?.isOperator == true,
simpleFunction?.isInfix == true,
simpleFunction?.isInline == true,
simpleFunction?.isTailRec == true,
simpleFunction?.isExternal == true,
function.isSuspend,
simpleFunction?.isExpect == true,
shouldSetStableParameterNames(function),
)
if (flags != builder.flags) {
builder.flags = flags
}
val name = when (function) {
is FirSimpleFunction -> {
function.name
}
is FirAnonymousFunction -> {
if (function.isLambda) SpecialNames.ANONYMOUS else SpecialNames.NO_NAME_PROVIDED
}
else -> throw AssertionError("Unsupported function: ${function.render()}")
}
builder.name = getSimpleNameIndex(name)
if (useTypeTable()) {
builder.returnTypeId = local.typeId(function.returnTypeRef)
} else {
builder.setReturnType(local.typeProto(function.returnTypeRef, toSuper = true))
}
for (typeParameter in function.typeParameters) {
@Suppress("USELESS_IS_CHECK") // K2 warning suppression, TODO: KT-62472
if (typeParameter !is FirTypeParameter) continue
builder.addTypeParameter(local.typeParameterProto(typeParameter))
}
for (contextReceiver in function.contextReceivers) {
val typeRef = contextReceiver.typeRef
if (useTypeTable()) {
builder.addContextReceiverTypeId(local.typeId(typeRef))
} else {
builder.addContextReceiverType(local.typeProto(contextReceiver.typeRef))
}
}
val receiverParameter = function.receiverParameter
if (receiverParameter != null) {
val receiverTypeRef = receiverParameter.typeRef
if (useTypeTable()) {
builder.receiverTypeId = local.typeId(receiverTypeRef)
} else {
builder.setReceiverType(local.typeProto(receiverTypeRef))
}
}
for ((index, valueParameter) in function.valueParameters.withIndex()) {
builder.addValueParameter(local.valueParameterProto(valueParameter, index, function))
}
contractSerializer.serializeContractOfFunctionIfAny(function, builder, this)
extension.serializeFunction(function, builder, versionRequirementTable, local)
if (serializeTypeTableToFunction) {
typeTable.serialize()?.let { builder.typeTable = it }
}
versionRequirementTable?.run {
builder.addAllVersionRequirement(serializeVersionRequirements(function))
if (local.metDefinitelyNotNullType) {
builder.addVersionRequirement(writeVersionRequirement(LanguageFeature.DefinitelyNonNullableTypes))
}
}
return builder
}
private fun FirFunction.memberKind(): MemberKind {
return when (origin) {
FirDeclarationOrigin.Delegated -> MemberKind.DELEGATION
is FirDeclarationOrigin.Synthetic -> MemberKind.SYNTHESIZED
else -> MemberKind.DECLARATION
}
}
private fun shouldSetStableParameterNames(function: FirFunction?): Boolean {
return when {
function?.hasStableParameterNames == true -> true
// for backward compatibility with K1, remove this line to fix KT-4758
function?.origin == FirDeclarationOrigin.Delegated -> true
else -> false
}
}
private fun typeAliasProto(typeAlias: FirTypeAlias): ProtoBuf.TypeAlias.Builder? = whileAnalysing(
session, typeAlias
) {
val builder = ProtoBuf.TypeAlias.newBuilder()
val local = createChildSerializer(typeAlias)
val flags = Flags.getTypeAliasFlags(
typeAlias.nonSourceAnnotations(session).isNotEmpty() || extension.hasAdditionalAnnotations(typeAlias),
ProtoEnumFlags.visibility(normalizeVisibility(typeAlias))
)
if (flags != builder.flags) {
builder.flags = flags
}
builder.name = getSimpleNameIndex(typeAlias.name)
for (typeParameter in typeAlias.typeParameters) {
builder.addTypeParameter(local.typeParameterProto(typeParameter))
}
val underlyingType = typeAlias.expandedConeType!!
if (useTypeTable()) {
builder.underlyingTypeId = local.typeId(underlyingType)
} else {
builder.setUnderlyingType(local.typeProto(underlyingType))
}
val expandedType = underlyingType.fullyExpandedType(session)
if (useTypeTable()) {
builder.expandedTypeId = local.typeId(expandedType)
} else {
builder.setExpandedType(local.typeProto(expandedType))
}
versionRequirementTable?.run {
builder.addAllVersionRequirement(serializeVersionRequirements(typeAlias))
if (local.metDefinitelyNotNullType) {
builder.addVersionRequirement(
writeLanguageVersionRequirement(LanguageFeature.DefinitelyNonNullableTypes, versionRequirementTable)
)
}
}
extension.serializeTypeAlias(typeAlias, builder)
return builder
}
private fun enumEntryProto(enumEntry: FirEnumEntry): ProtoBuf.EnumEntry.Builder = whileAnalysing(session, enumEntry) {
val builder = ProtoBuf.EnumEntry.newBuilder()
builder.name = getSimpleNameIndex(enumEntry.name)
extension.serializeEnumEntry(enumEntry, builder)
return builder
}
private fun constructorProto(constructor: FirConstructor): ProtoBuf.Constructor.Builder = whileAnalysing(session, constructor) {
val builder = ProtoBuf.Constructor.newBuilder()
val local = createChildSerializer(constructor)
val flags = Flags.getConstructorFlags(
constructor.nonSourceAnnotations(session).isNotEmpty() || extension.hasAdditionalAnnotations(constructor),
ProtoEnumFlags.visibility(normalizeVisibility(constructor)),
!constructor.isPrimary,
shouldSetStableParameterNames(constructor)
)
if (flags != builder.flags) {
builder.flags = flags
}
for ((index, valueParameter) in constructor.valueParameters.withIndex()) {
builder.addValueParameter(local.valueParameterProto(valueParameter, index, constructor))
}
versionRequirementTable?.run {
builder.addAllVersionRequirement(serializeVersionRequirements(constructor))
if (local.metDefinitelyNotNullType) {
builder.addVersionRequirement(writeVersionRequirement(LanguageFeature.DefinitelyNonNullableTypes))
}
}
extension.serializeConstructor(constructor, builder, local)
return builder
}
private fun valueParameterProto(
parameter: FirValueParameter,
index: Int,
function: FirFunction,
additionalAnnotations: List = emptyList(),
): ProtoBuf.ValueParameter.Builder = whileAnalysing(session, parameter) {
val builder = ProtoBuf.ValueParameter.newBuilder()
val declaresDefaultValue = function.itOrExpectHasDefaultParameterValue(index)
val flags = Flags.getValueParameterFlags(
additionalAnnotations.isNotEmpty()
|| parameter.nonSourceAnnotations(session).isNotEmpty()
|| extension.hasAdditionalAnnotations(parameter),
declaresDefaultValue,
parameter.isCrossinline,
parameter.isNoinline
)
if (flags != builder.flags) {
builder.flags = flags
}
builder.name = getSimpleNameIndex(parameter.name)
if (useTypeTable()) {
builder.typeId = typeId(parameter.returnTypeRef)
} else {
builder.setType(typeProto(parameter.returnTypeRef))
}
if (parameter.isVararg) {
val varargElementType = parameter.returnTypeRef.coneType.varargElementType()
.withAttributes(parameter.returnTypeRef.annotations.computeTypeAttributes(session, shouldExpandTypeAliases = false))
if (useTypeTable()) {
builder.varargElementTypeId = typeId(varargElementType)
} else {
builder.setVarargElementType(typeProto(varargElementType))
}
}
extension.serializeValueParameter(parameter, builder)
return builder
}
private fun typeParameterProto(typeParameter: FirTypeParameter): ProtoBuf.TypeParameter.Builder =
whileAnalysing(session, typeParameter) {
val builder = ProtoBuf.TypeParameter.newBuilder()
builder.id = getTypeParameterId(typeParameter)
builder.name = getSimpleNameIndex(typeParameter.name)
if (typeParameter.isReified != builder.reified) {
builder.reified = typeParameter.isReified
}
val variance = ProtoEnumFlags.variance(typeParameter.variance)
if (variance != builder.variance) {
builder.variance = variance
}
extension.serializeTypeParameter(typeParameter, builder)
val upperBounds = typeParameter.bounds
if (upperBounds.size == 1 && upperBounds.single() is FirImplicitNullableAnyTypeRef) return builder
for (upperBound in upperBounds) {
if (useTypeTable()) {
builder.addUpperBoundId(typeId(upperBound))
} else {
builder.addUpperBound(typeProto(upperBound))
}
}
return builder
}
fun typeId(typeRef: FirTypeRef): Int {
if (typeRef !is FirResolvedTypeRef) {
return -1 // TODO: serializeErrorType?
}
return typeId(typeRef.type)
}
fun typeId(type: ConeKotlinType): Int = typeTable[typeProto(type)]
private fun typeProto(typeRef: FirTypeRef, toSuper: Boolean = false): ProtoBuf.Type.Builder {
return typeProto(typeRef.coneType, toSuper, correspondingTypeRef = typeRef)
}
private fun typeProto(
type: ConeKotlinType,
toSuper: Boolean = false,
correspondingTypeRef: FirTypeRef? = null,
isDefinitelyNotNullType: Boolean = false,
): ProtoBuf.Type.Builder {
val typeProto = typeOrTypealiasProto(type, toSuper, correspondingTypeRef, isDefinitelyNotNullType)
val expanded = if (type is ConeClassLikeType) type.fullyExpandedType(session) else type
if (expanded === type) {
return typeProto
}
val expandedProto = typeOrTypealiasProto(expanded, toSuper, correspondingTypeRef, isDefinitelyNotNullType)
if (useTypeTable()) {
expandedProto.abbreviatedTypeId = typeTable[typeProto]
} else {
expandedProto.setAbbreviatedType(typeProto)
}
return expandedProto
}
private fun typeOrTypealiasProto(
type: ConeKotlinType,
toSuper: Boolean,
correspondingTypeRef: FirTypeRef?,
isDefinitelyNotNullType: Boolean,
): ProtoBuf.Type.Builder {
val builder = ProtoBuf.Type.newBuilder()
val typeAnnotations = mutableListOf()
when (type) {
is ConeDefinitelyNotNullType -> return typeProto(type.original, toSuper, correspondingTypeRef, isDefinitelyNotNullType = true)
is ConeErrorType -> {
extension.serializeErrorType(type, builder)
return builder
}
is ConeFlexibleType -> {
val lowerBound = typeProto(type.lowerBound)
val upperBound = typeProto(type.upperBound)
extension.serializeFlexibleType(type, lowerBound, upperBound)
if (useTypeTable()) {
lowerBound.flexibleUpperBoundId = typeTable[upperBound]
} else {
lowerBound.setFlexibleUpperBound(upperBound)
}
return lowerBound
}
is ConeClassLikeType -> {
val functionTypeKind = type.functionTypeKind(session)
if (functionTypeKind == FunctionTypeKind.SuspendFunction) {
val runtimeFunctionType = type.suspendFunctionTypeToFunctionTypeWithContinuation(
session, StandardClassIds.Continuation
)
val functionType = typeProto(runtimeFunctionType)
functionType.flags = Flags.getTypeFlags(true, false)
return functionType
}
if (functionTypeKind?.isBuiltin == false) {
val legacySerializationUntil =
LanguageVersion.fromVersionString(functionTypeKind.serializeAsFunctionWithAnnotationUntil)
if (legacySerializationUntil != null && languageVersionSettings.languageVersion < legacySerializationUntil) {
return typeProto(type.customFunctionTypeToSimpleFunctionType(session))
}
}
fillFromPossiblyInnerType(builder, type)
if (type.hasContextReceivers) {
typeAnnotations.addIfNotNull(
createAnnotationFromAttribute(
correspondingTypeRef?.annotations, CompilerConeAttributes.ContextFunctionTypeParams.ANNOTATION_CLASS_ID,
argumentMapping = buildAnnotationArgumentMapping {
this.mapping[StandardNames.CONTEXT_FUNCTION_TYPE_PARAMETER_COUNT_NAME] =
buildLiteralExpression(
source = null, ConstantValueKind.Int, type.contextReceiversNumberForFunctionType, setType = true
)
}
)
)
}
}
is ConeTypeParameterType -> {
val typeParameter = type.lookupTag.typeParameterSymbol.fir
if (typeParameter in ((currentDeclaration as? FirMemberDeclaration)?.typeParameters ?: emptyList())) {
builder.typeParameterName = getSimpleNameIndex(typeParameter.name)
} else {
builder.typeParameter = getTypeParameterId(typeParameter)
}
if (isDefinitelyNotNullType) {
metDefinitelyNotNullType = true
builder.flags = Flags.getTypeFlags(false, isDefinitelyNotNullType)
}
}
is ConeIntersectionType -> {
val approximatedType = if (toSuper) {
typeApproximator.approximateToSuperType(type, TypeApproximatorConfiguration.PublicDeclaration.SaveAnonymousTypes)
} else {
typeApproximator.approximateToSubType(type, TypeApproximatorConfiguration.PublicDeclaration.SaveAnonymousTypes)
}
assert(approximatedType != type && approximatedType is ConeKotlinType) {
"Approximation failed: ${type.renderForDebugging()}"
}
return typeProto(approximatedType as ConeKotlinType)
}
is ConeIntegerLiteralType -> {
throw IllegalStateException("Integer literal types should not persist up to the serializer: ${type.renderForDebugging()}")
}
is ConeCapturedType -> {
throw IllegalStateException("Captured types should not persist up to the serializer: ${type.renderForDebugging()}")
}
else -> {
throw AssertionError("Should not be here: ${type::class.java}")
}
}
if (type.isMarkedNullable != builder.nullable) {
builder.nullable = type.isMarkedNullable
}
val extensionAttributes = mutableListOf>()
for (attribute in type.attributes) {
when {
attribute is CustomAnnotationTypeAttribute -> typeAnnotations.addAll(attribute.annotations.nonSourceAnnotations(session))
attribute.key in CompilerConeAttributes.classIdByCompilerAttributeKey ->
typeAnnotations.add(createAnnotationForCompilerDefinedTypeAttribute(attribute))
else -> extensionAttributes += attribute
}
}
for (attributeExtension in session.extensionService.typeAttributeExtensions) {
for (attribute in extensionAttributes) {
typeAnnotations.addIfNotNull(attributeExtension.convertAttributeToAnnotation(attribute))
}
}
extension.serializeTypeAnnotations(typeAnnotations, builder)
// TODO: abbreviated type
// val abbreviation = type.getAbbreviatedType()?.abbreviation
// if (abbreviation != null) {
// if (useTypeTable()) {
// builder.abbreviatedTypeId = typeId(abbreviation)
// } else {
// builder.setAbbreviatedType(typeProto(abbreviation))
// }
// }
return builder
}
private fun createAnnotationForCompilerDefinedTypeAttribute(attribute: ConeAttribute<*>): FirAnnotation {
return buildAnnotation {
annotationTypeRef = buildResolvedTypeRef {
this.type = ConeClassLikeTypeImpl(
CompilerConeAttributes.classIdByCompilerAttributeKey.getValue(attribute.key).toLookupTag(),
emptyArray(),
isNullable = false
)
}
argumentMapping = FirEmptyAnnotationArgumentMapping
}
}
private fun createAnnotationFromAttribute(
existingAnnotations: List?,
classId: ClassId,
argumentMapping: FirAnnotationArgumentMapping = FirEmptyAnnotationArgumentMapping,
): FirAnnotation? {
return runIf(existingAnnotations?.any { it.annotationTypeRef.coneTypeSafe()?.classId == classId } != true) {
buildAnnotation {
annotationTypeRef = buildResolvedTypeRef {
this.type = classId.constructClassLikeType(
emptyArray(), isNullable = false
)
}
this.argumentMapping = argumentMapping
}
}
}
private fun fillFromPossiblyInnerType(
builder: ProtoBuf.Type.Builder,
symbol: FirClassLikeSymbol<*>,
typeArguments: Array,
typeArgumentIndex: Int
) {
var argumentIndex = typeArgumentIndex
val classifier = symbol.fir
val classifierId = getClassifierId(classifier)
if (classifier is FirTypeAlias) {
builder.typeAliasName = classifierId
} else {
builder.className = classifierId
}
for (i in 0 until classifier.typeParameters.size) {
// Next type parameter is not for this type but for an outer type.
if (classifier.typeParameters[i] !is FirTypeParameter) break
// No explicit type argument provided. For example: `Map.Entry` when we get to `Map`
// it has type parameters, but no explicit type arguments are provided for it.
if (argumentIndex >= typeArguments.size) return
builder.addArgument(typeArgument(typeArguments[argumentIndex++]))
}
if (!symbol.isInner) return
val outerClassId = symbol.classId.outerClassId
if (outerClassId == null || outerClassId.isLocal) return
val outerSymbol = outerClassId.toLookupTag().toSymbol(session)
if (outerSymbol != null) {
val outerBuilder = ProtoBuf.Type.newBuilder()
fillFromPossiblyInnerType(outerBuilder, outerSymbol, typeArguments, argumentIndex)
if (useTypeTable()) {
builder.outerTypeId = typeTable[outerBuilder]
} else {
builder.setOuterType(outerBuilder)
}
}
}
private fun fillFromPossiblyInnerType(builder: ProtoBuf.Type.Builder, type: ConeClassLikeType) {
val classifierSymbol = type.lookupTag.toSymbol(session)
if (classifierSymbol != null) {
fillFromPossiblyInnerType(builder, classifierSymbol, type.typeArguments, 0)
} else {
builder.className = getClassifierId(type.lookupTag.classId)
type.typeArguments.forEach { builder.addArgument(typeArgument(it)) }
}
}
private fun typeArgument(typeProjection: ConeTypeProjection): ProtoBuf.Type.Argument.Builder {
val builder = ProtoBuf.Type.Argument.newBuilder()
if (typeProjection is ConeStarProjection) {
builder.projection = ProtoBuf.Type.Argument.Projection.STAR
} else if (typeProjection is ConeKotlinTypeProjection) {
val projection = ProtoEnumFlags.projection(typeProjection.kind)
if (projection != builder.projection) {
builder.projection = projection
}
if (useTypeTable()) {
builder.typeId = typeId(typeProjection.type)
} else {
builder.setType(typeProto(typeProjection.type))
}
}
return builder
}
private fun getAccessorFlags(accessor: FirPropertyAccessor, property: FirProperty): Int {
// [FirDefaultPropertyAccessor]---a property accessor without body---can still hold other information, such as annotations,
// user-contributed visibility, and modifiers, such as `external` or `inline`.
val hasAnnotations = accessor.nonSourceAnnotations(session).isNotEmpty() || extension.hasAdditionalAnnotations(accessor)
val isDefault = property.isLocal ||
(accessor is FirDefaultPropertyAccessor &&
!hasAnnotations &&
accessor.visibility == property.visibility &&
!accessor.isExternal &&
!accessor.isInline)
return Flags.getAccessorFlags(
hasAnnotations,
ProtoEnumFlags.visibility(normalizeVisibility(accessor)),
// non-default accessor modality is always final, so we check property.modality instead
ProtoEnumFlags.modality(property.modality!!),
!isDefault,
accessor.isExternal,
accessor.isInline
)
}
private fun createChildSerializer(declaration: FirDeclaration): FirElementSerializer =
FirElementSerializer(
session, scopeSession, declaration, Interner(typeParameters), extension,
typeTable, versionRequirementTable, serializeTypeTableToFunction = false,
typeApproximator, languageVersionSettings, produceHeaderKlib
)
val stringTable: FirElementAwareStringTable
get() = extension.stringTable
private fun useTypeTable(): Boolean = extension.shouldUseTypeTable()
private fun MutableVersionRequirementTable.serializeVersionRequirements(container: FirAnnotationContainer): List =
serializeVersionRequirements(container.annotations)
private fun MutableVersionRequirementTable.serializeVersionRequirements(annotations: List): List =
annotations
.filter {
it.toAnnotationClassId(session)?.asSingleFqName() == RequireKotlinConstants.FQ_NAME
}
.mapNotNull(::serializeVersionRequirementFromRequireKotlin)
.map(::get)
private fun MutableVersionRequirementTable.writeVersionRequirement(languageFeature: LanguageFeature): Int {
return writeLanguageVersionRequirement(languageFeature, this)
}
private fun serializeVersionRequirementFromRequireKotlin(annotation: FirAnnotation): ProtoBuf.VersionRequirement.Builder? {
val convertedAnnotation = annotation.toConstantValue(session, scopeSession, extension.constValueProvider) ?: return null
val argumentMapping = convertedAnnotation.value.argumentsMapping
val versionString = argumentMapping[RequireKotlinConstants.VERSION]?.value as String? ?: return null
val matchResult = RequireKotlinConstants.VERSION_REGEX.matchEntire(versionString) ?: return null
val major = matchResult.groupValues.getOrNull(1)?.toIntOrNull() ?: return null
val minor = matchResult.groupValues.getOrNull(2)?.toIntOrNull() ?: 0
val patch = matchResult.groupValues.getOrNull(4)?.toIntOrNull() ?: 0
val proto = ProtoBuf.VersionRequirement.newBuilder()
VersionRequirement.Version(major, minor, patch).encode(
writeVersion = { proto.version = it },
writeVersionFull = { proto.versionFull = it }
)
val message = argumentMapping[RequireKotlinConstants.MESSAGE]?.value as String?
if (message != null) {
proto.message = stringTable.getStringIndex(message)
}
when ((argumentMapping[RequireKotlinConstants.LEVEL] as EnumValue?)?.enumEntryName?.asString()) {
DeprecationLevel.ERROR.name -> {
// ERROR is the default level
}
DeprecationLevel.WARNING.name -> proto.level = ProtoBuf.VersionRequirement.Level.WARNING
DeprecationLevel.HIDDEN.name -> proto.level = ProtoBuf.VersionRequirement.Level.HIDDEN
}
when ((argumentMapping[RequireKotlinConstants.VERSION_KIND] as EnumValue?)?.enumEntryName?.asString()) {
ProtoBuf.VersionRequirement.VersionKind.LANGUAGE_VERSION.name -> {
// LANGUAGE_VERSION is the default kind
}
ProtoBuf.VersionRequirement.VersionKind.COMPILER_VERSION.name ->
proto.versionKind = ProtoBuf.VersionRequirement.VersionKind.COMPILER_VERSION
ProtoBuf.VersionRequirement.VersionKind.API_VERSION.name ->
proto.versionKind = ProtoBuf.VersionRequirement.VersionKind.API_VERSION
}
val errorCode = (argumentMapping[RequireKotlinConstants.ERROR_CODE] as? IntValue)?.value
if (errorCode != null && errorCode != -1) {
proto.errorCode = errorCode
}
return proto
}
private fun normalizeVisibility(declaration: FirMemberDeclaration): Visibility {
return declaration.visibility.normalize()
}
private fun normalizeVisibility(declaration: FirPropertyAccessor): Visibility {
return declaration.visibility.normalize()
}
private fun getClassifierId(declaration: FirClassLikeDeclaration): Int =
stringTable.getFqNameIndex(declaration)
private fun getClassifierId(classId: ClassId): Int =
stringTable.getQualifiedClassNameIndex(classId)
private fun getSimpleNameIndex(name: Name): Int =
stringTable.getStringIndex(name.asString())
private fun getTypeParameterId(typeParameter: FirTypeParameter): Int =
typeParameters.intern(typeParameter)
companion object {
@JvmStatic
fun createTopLevel(
session: FirSession,
scopeSession: ScopeSession,
extension: FirSerializerExtension,
typeApproximator: AbstractTypeApproximator,
languageVersionSettings: LanguageVersionSettings,
produceHeaderKlib: Boolean = false,
): FirElementSerializer =
FirElementSerializer(
session, scopeSession, null,
Interner(), extension, MutableTypeTable(), MutableVersionRequirementTable(),
serializeTypeTableToFunction = false,
typeApproximator,
languageVersionSettings,
produceHeaderKlib,
)
@JvmStatic
fun createForLambda(
session: FirSession,
scopeSession: ScopeSession,
extension: FirSerializerExtension,
typeApproximator: AbstractTypeApproximator,
languageVersionSettings: LanguageVersionSettings,
): FirElementSerializer =
FirElementSerializer(
session, scopeSession, null,
Interner(), extension, MutableTypeTable(),
versionRequirementTable = null, serializeTypeTableToFunction = true,
typeApproximator,
languageVersionSettings,
produceHeaderKlib = false,
)
@JvmStatic
fun create(
session: FirSession,
scopeSession: ScopeSession,
klass: FirClass,
extension: FirSerializerExtension,
parentSerializer: FirElementSerializer?,
typeApproximator: AbstractTypeApproximator,
languageVersionSettings: LanguageVersionSettings,
produceHeaderKlib: Boolean = false,
): FirElementSerializer {
val parentClassId = klass.symbol.classId.outerClassId
val parent = if (parentClassId != null && !parentClassId.isLocal) {
val parentClass = session.symbolProvider.getClassLikeSymbolByClassId(parentClassId)!!.fir as FirRegularClass
parentSerializer ?: create(
session, scopeSession, parentClass, extension, null, typeApproximator,
languageVersionSettings, produceHeaderKlib
)
} else {
createTopLevel(session, scopeSession, extension, typeApproximator, languageVersionSettings, produceHeaderKlib)
}
// Calculate type parameter ids for the outer class beforehand, as it would've had happened if we were always
// serializing outer classes before nested classes.
// Otherwise our interner can get wrong ids because we may serialize classes in any order.
val serializer = FirElementSerializer(
session,
scopeSession,
klass,
Interner(parent.typeParameters),
extension,
MutableTypeTable(),
if (parentClassId != null && !isKotlin1Dot4OrLater(extension.metadataVersion)) {
parent.versionRequirementTable
} else {
MutableVersionRequirementTable()
},
serializeTypeTableToFunction = false,
typeApproximator,
languageVersionSettings,
produceHeaderKlib,
)
for (typeParameter in klass.typeParameters) {
if (typeParameter !is FirTypeParameter) continue
serializer.typeParameters.intern(typeParameter)
}
return serializer
}
@JvmStatic
fun createForScript(
session: FirSession,
scopeSession: ScopeSession,
script: FirScript,
extension: FirSerializerExtension,
typeApproximator: AbstractTypeApproximator,
languageVersionSettings: LanguageVersionSettings,
produceHeaderKlib: Boolean = false,
): FirElementSerializer =
FirElementSerializer(
session, scopeSession, script,
Interner(), extension, MutableTypeTable(), MutableVersionRequirementTable(),
serializeTypeTableToFunction = false,
typeApproximator,
languageVersionSettings,
produceHeaderKlib,
)
private fun writeLanguageVersionRequirement(
languageFeature: LanguageFeature,
versionRequirementTable: MutableVersionRequirementTable
): Int {
val languageVersion = languageFeature.sinceVersion!!
return writeVersionRequirement(
languageVersion.major, languageVersion.minor, 0,
ProtoBuf.VersionRequirement.VersionKind.LANGUAGE_VERSION,
versionRequirementTable
)
}
private fun writeVersionRequirement(
major: Int,
minor: Int,
patch: Int,
versionKind: ProtoBuf.VersionRequirement.VersionKind,
versionRequirementTable: MutableVersionRequirementTable
): Int {
val requirement = ProtoBuf.VersionRequirement.newBuilder().apply {
VersionRequirement.Version(major, minor, patch).encode(
writeVersion = { version = it },
writeVersionFull = { versionFull = it }
)
if (versionKind != defaultInstanceForType.versionKind) {
this.versionKind = versionKind
}
}
return versionRequirementTable[requirement]
}
}
}