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org.jetbrains.kotlin.codegen.MultifileClassCodegen.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.codegen
import com.intellij.openapi.application.ApplicationManager
import com.intellij.openapi.progress.ProcessCanceledException
import com.intellij.util.ArrayUtil
import com.intellij.util.SmartList
import org.jetbrains.kotlin.codegen.context.FieldOwnerContext
import org.jetbrains.kotlin.codegen.context.MethodContext
import org.jetbrains.kotlin.codegen.state.GenerationState
import org.jetbrains.kotlin.config.IncrementalCompilation
import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor
import org.jetbrains.kotlin.descriptors.Visibilities
import org.jetbrains.kotlin.diagnostics.DiagnosticUtils
import org.jetbrains.kotlin.fileClasses.JvmFileClassUtil
import org.jetbrains.kotlin.load.java.JvmAnnotationNames
import org.jetbrains.kotlin.load.kotlin.PackageParts
import org.jetbrains.kotlin.load.kotlin.header.KotlinClassHeader
import org.jetbrains.kotlin.load.kotlin.incremental.IncrementalPackageFragmentProvider
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.progress.ProgressIndicatorAndCompilationCanceledStatus
import org.jetbrains.kotlin.psi.*
import org.jetbrains.kotlin.resolve.BindingContext
import org.jetbrains.kotlin.resolve.MemberComparator
import org.jetbrains.kotlin.resolve.jvm.JvmClassName
import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOrigin
import org.jetbrains.kotlin.resolve.jvm.diagnostics.MultifileClass
import org.jetbrains.kotlin.resolve.jvm.diagnostics.MultifileClassPart
import org.jetbrains.kotlin.resolve.jvm.diagnostics.OtherOrigin
import org.jetbrains.kotlin.resolve.jvm.jvmSignature.JvmMethodSignature
import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
import org.jetbrains.kotlin.resolve.scopes.MemberScope
import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedCallableMemberDescriptor
import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedPropertyDescriptor
import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedSimpleFunctionDescriptor
import org.jetbrains.org.objectweb.asm.MethodVisitor
import org.jetbrains.org.objectweb.asm.Opcodes
import org.jetbrains.org.objectweb.asm.Type
import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter
import java.util.*
class MultifileClassCodegen(
private val state: GenerationState,
val files: Collection,
private val facadeFqName: FqName
) {
private val facadeClassType = AsmUtil.asmTypeByFqNameWithoutInnerClasses(facadeFqName)
private val packageFragment = getOnlyPackageFragment(facadeFqName.parent(), files, state.bindingContext)
private val compiledPackageFragment = getCompiledPackageFragment(facadeFqName, state)
private val previouslyCompiledCallables =
if (compiledPackageFragment == null)
emptyList()
else
getDeserializedCallables(compiledPackageFragment)
private fun getDeserializedCallables(compiledPackageFragment: PackageFragmentDescriptor) =
compiledPackageFragment.getMemberScope().getContributedDescriptors(DescriptorKindFilter.CALLABLES, MemberScope.ALL_NAME_FILTER).filterIsInstance()
val packageParts = PackageParts(facadeFqName.parent().asString())
private val classBuilder = ClassBuilderOnDemand {
val originFile = files.firstOrNull()
val actualPackageFragment = packageFragment ?:
compiledPackageFragment ?:
throw AssertionError("No package fragment for multifile facade $facadeFqName; files: $files")
val declarationOrigin = MultifileClass(originFile, actualPackageFragment, facadeFqName)
val classBuilder = state.factory.newVisitor(declarationOrigin, facadeClassType, files)
val filesWithCallables = files.filter { it.declarations.any { it is KtNamedFunction || it is KtProperty } }
val singleSourceFile = if (previouslyCompiledCallables.isNotEmpty()) null else filesWithCallables.singleOrNull()
classBuilder.defineClass(singleSourceFile, Opcodes.V1_6,
if (state.generateOpenMultifileClasses) OPEN_FACADE_CLASS_ATTRIBUTES else FACADE_CLASS_ATTRIBUTES,
facadeClassType.internalName,
null, "java/lang/Object", ArrayUtil.EMPTY_STRING_ARRAY)
if (singleSourceFile != null) {
classBuilder.visitSource(singleSourceFile.name, null)
}
if (state.generateOpenMultifileClasses) {
generateMultifileFacadeClassConstructor(classBuilder, originFile)
}
classBuilder
}
fun generate(errorHandler: CompilationErrorHandler) {
val generateCallableMemberTasks = HashMap Unit>()
val partFqNames = arrayListOf()
generateCodeForSourceFiles(errorHandler, generateCallableMemberTasks, partFqNames)
generateDelegatesToPreviouslyCompiledParts(generateCallableMemberTasks, partFqNames)
if (!partFqNames.isEmpty()) {
generateMultifileFacadeClass(generateCallableMemberTasks, partFqNames)
}
}
private fun generateCodeForSourceFiles(
errorHandler: CompilationErrorHandler,
generateCallableMemberTasks: MutableMap Unit>,
partFqNames: MutableList
) {
for (file in files) {
ProgressIndicatorAndCompilationCanceledStatus.checkCanceled()
try {
generatePart(file, generateCallableMemberTasks, partFqNames)
}
catch (e: ProcessCanceledException) {
throw e
}
catch (e: Throwable) {
val vFile = file.virtualFile
errorHandler.reportException(e, if (vFile == null) "no file" else vFile.url)
DiagnosticUtils.throwIfRunningOnServer(e)
if (ApplicationManager.getApplication().isInternal) {
//noinspection CallToPrintStackTrace
e.printStackTrace()
}
}
}
}
private fun generateMultifileFacadeClass(
tasks: Map Unit>,
partFqNames: List
) {
for (member in tasks.keys.sortedWith(MemberComparator.INSTANCE)) {
tasks[member]!!()
}
writeKotlinMultifileFacadeAnnotationIfNeeded(partFqNames)
}
fun generateClassOrObject(classOrObject: KtClassOrObject, packagePartContext: FieldOwnerContext) {
MemberCodegen.genClassOrObject(packagePartContext, classOrObject, state, null)
}
private fun generateMultifileFacadeClassConstructor(classBuilder: ClassBuilder, originFile: KtFile?) {
val mv = classBuilder.newMethod(JvmDeclarationOrigin.NO_ORIGIN, Opcodes.ACC_PUBLIC, "", "()V", null, null)
val v = InstructionAdapter(mv)
v.load(0, facadeClassType)
v.invokespecial("java/lang/Object", "", "()V", false)
v.visitInsn(Opcodes.RETURN)
FunctionCodegen.endVisit(v, "multifile class constructor", originFile)
}
private fun generatePart(
file: KtFile,
generateCallableMemberTasks: MutableMap Unit>,
partFqNames: MutableList
) {
val packageFragment = this.packageFragment ?:
throw AssertionError("File part $file of $facadeFqName: no package fragment")
var generatePart = false
val partClassInfo = state.fileClassesProvider.getFileClassInfo(file)
val partType = AsmUtil.asmTypeByFqNameWithoutInnerClasses(partClassInfo.fileClassFqName)
val partContext = state.rootContext.intoMultifileClassPart(packageFragment, facadeClassType, partType, file)
for (declaration in file.declarations) {
when (declaration) {
is KtProperty, is KtNamedFunction -> {
generatePart = true
}
is KtClassOrObject -> if (state.generateDeclaredClassFilter.shouldGenerateClass(declaration)) {
generateClassOrObject(declaration, partContext)
}
is KtScript -> if (state.generateDeclaredClassFilter.shouldGenerateScript(declaration)) {
ScriptCodegen.createScriptCodegen(declaration, state, partContext).generate()
}
}
}
if (!generatePart || !state.generateDeclaredClassFilter.shouldGeneratePackagePart(file)) return
partFqNames.add(partClassInfo.fileClassFqName)
val name = partType.internalName
packageParts.parts.add(name.substring(name.lastIndexOf('/') + 1))
val builder = state.factory.newVisitor(MultifileClassPart(file, packageFragment, facadeFqName), partType, file)
MultifileClassPartCodegen(builder, file, partType, facadeClassType, partContext, state).generate()
val facadeContext = state.rootContext.intoMultifileClass(packageFragment, facadeClassType, partType)
val memberCodegen = createCodegenForPartOfMultifileFacade(facadeContext)
for (declaration in file.declarations) {
if (declaration is KtNamedFunction || declaration is KtProperty) {
val descriptor = state.bindingContext.get(BindingContext.DECLARATION_TO_DESCRIPTOR, declaration)
assert(descriptor is CallableMemberDescriptor) { "Expected callable member, was " + descriptor + " for " + declaration.text }
if (!Visibilities.isPrivate((descriptor as CallableMemberDescriptor).visibility)
&& AsmUtil.getVisibilityAccessFlag(descriptor) != Opcodes.ACC_PRIVATE) {
generateCallableMemberTasks.put(descriptor, { memberCodegen.genFunctionOrProperty(declaration) })
}
}
}
}
private fun generateDelegatesToPreviouslyCompiledParts(
generateCallableMemberTasks: MutableMap Unit>,
partFqNames: MutableList
) {
if (compiledPackageFragment == null) return
partFqNames.addAll(compiledPackageFragment.partsNames.map { JvmClassName.byInternalName(it).fqNameForClassNameWithoutDollars })
for (callable in previouslyCompiledCallables) {
val partFqName = JvmFileClassUtil.getPartFqNameForDeserializedCallable(callable)
val partType = AsmUtil.asmTypeByFqNameWithoutInnerClasses(partFqName)
generateCallableMemberTasks[callable] = { generateDelegateToCompiledMember(callable, compiledPackageFragment, partType) }
}
}
private fun generateDelegateToCompiledMember(
member: CallableMemberDescriptor,
compiledPackageFragment: PackageFragmentDescriptor,
partType: Type
) {
val context = state.rootContext.intoMultifileClass(compiledPackageFragment, facadeClassType, partType)
val memberCodegen = createCodegenForPartOfMultifileFacade(context)
when (member) {
is DeserializedSimpleFunctionDescriptor -> {
memberCodegen.functionCodegen.generateMethod(OtherOrigin(member), member, DelegateToCompiledMemberGenerationStrategy)
memberCodegen.functionCodegen.generateDefaultIfNeeded(
context.intoFunction(member), member, OwnerKind.PACKAGE, DefaultParameterValueLoader.DEFAULT, null)
memberCodegen.functionCodegen.generateOverloadsWithDefaultValues(null, member, member)
}
is DeserializedPropertyDescriptor -> {
memberCodegen.propertyCodegen.generateInPackageFacade(member)
}
else -> {
throw IllegalStateException("Unexpected member: " + member)
}
}
}
object DelegateToCompiledMemberGenerationStrategy : FunctionGenerationStrategy() {
override fun generateBody(mv: MethodVisitor, frameMap: FrameMap, signature: JvmMethodSignature, context: MethodContext, parentCodegen: MemberCodegen<*>) {
throw IllegalStateException("shouldn't be called")
}
}
private fun writeKotlinMultifileFacadeAnnotationIfNeeded(partFqNames: List) {
if (state.classBuilderMode != ClassBuilderMode.FULL) return
if (files.any { it.isScript }) return
writeKotlinMetadata(classBuilder, KotlinClassHeader.Kind.MULTIFILE_CLASS) { av ->
val arv = av.visitArray(JvmAnnotationNames.METADATA_DATA_FIELD_NAME)
for (internalName in partFqNames.map(AsmUtil::internalNameByFqNameWithoutInnerClasses).sorted()) {
arv.visit(null, internalName)
}
arv.visitEnd()
}
}
private fun createCodegenForPartOfMultifileFacade(facadeContext: FieldOwnerContext<*>): MemberCodegen =
object : MemberCodegen(state, null, facadeContext, null, classBuilder) {
override fun generateDeclaration() = throw UnsupportedOperationException()
override fun generateBody() = throw UnsupportedOperationException()
override fun generateKotlinMetadataAnnotation() = throw UnsupportedOperationException()
}
fun done() {
classBuilder.done()
}
companion object {
private val FACADE_CLASS_ATTRIBUTES = Opcodes.ACC_PUBLIC or Opcodes.ACC_FINAL or Opcodes.ACC_SUPER
private val OPEN_FACADE_CLASS_ATTRIBUTES = Opcodes.ACC_PUBLIC or Opcodes.ACC_SUPER
private fun getOnlyPackageFragment(packageFqName: FqName, files: Collection, bindingContext: BindingContext): PackageFragmentDescriptor? {
val fragments = SmartList()
for (file in files) {
val fragment = bindingContext.get(BindingContext.FILE_TO_PACKAGE_FRAGMENT, file)
assert(fragment != null) { "package fragment is null for " + file + "\n" + file.text }
assert(packageFqName == fragment!!.fqName) { "expected package fq name: " + packageFqName + ", actual: " + fragment.fqName }
if (!fragments.contains(fragment)) {
fragments.add(fragment)
}
}
if (fragments.size > 1) {
throw IllegalStateException("More than one package fragment, files: $files | fragments: $fragments")
}
return fragments.firstOrNull()
}
private fun getCompiledPackageFragment(facadeFqName: FqName, state: GenerationState):
IncrementalPackageFragmentProvider.IncrementalPackageFragment.IncrementalMultifileClassPackageFragment? {
if (!IncrementalCompilation.isEnabled()) return null
val packageFqName = facadeFqName.parent()
val incrementalPackageFragment = state.module.getPackage(packageFqName).fragments.firstOrNull { fragment ->
fragment is IncrementalPackageFragmentProvider.IncrementalPackageFragment &&
fragment.target == state.targetId
} as IncrementalPackageFragmentProvider.IncrementalPackageFragment?
return incrementalPackageFragment?.getPackageFragmentForMultifileClass(facadeFqName)
}
}
}
