.kotlin.kotlin-compiler.1.2.71.source-code.LazyJavaAnnotationDescriptor.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2016 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.load.java.lazy.descriptors
import org.jetbrains.kotlin.builtins.jvm.JavaToKotlinClassMap
import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
import org.jetbrains.kotlin.descriptors.annotations.Annotations
import org.jetbrains.kotlin.descriptors.findNonGenericClassAcrossDependencies
import org.jetbrains.kotlin.incremental.components.NoLookupLocation
import org.jetbrains.kotlin.load.java.JvmAnnotationNames.DEFAULT_ANNOTATION_MEMBER_NAME
import org.jetbrains.kotlin.load.java.components.DescriptorResolverUtils
import org.jetbrains.kotlin.load.java.components.TypeUsage
import org.jetbrains.kotlin.load.java.lazy.LazyJavaResolverContext
import org.jetbrains.kotlin.load.java.lazy.types.toAttributes
import org.jetbrains.kotlin.load.java.structure.*
import org.jetbrains.kotlin.name.ClassId
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.renderer.DescriptorRenderer
import org.jetbrains.kotlin.resolve.constants.*
import org.jetbrains.kotlin.resolve.descriptorUtil.annotationClass
import org.jetbrains.kotlin.resolve.descriptorUtil.resolveTopLevelClass
import org.jetbrains.kotlin.storage.getValue
import org.jetbrains.kotlin.types.*
class LazyJavaAnnotationDescriptor(
private val c: LazyJavaResolverContext,
private val javaAnnotation: JavaAnnotation
) : AnnotationDescriptor {
override val fqName by c.storageManager.createNullableLazyValue {
javaAnnotation.classId?.asSingleFqName()
}
override val type by c.storageManager.createLazyValue {
val fqName = fqName ?: return@createLazyValue ErrorUtils.createErrorType("No fqName: $javaAnnotation")
val annotationClass = JavaToKotlinClassMap.mapJavaToKotlin(fqName, c.module.builtIns)
?: javaAnnotation.resolve()?.let { javaClass -> c.components.moduleClassResolver.resolveClass(javaClass) }
?: createTypeForMissingDependencies(fqName)
annotationClass.defaultType
}
override val source = c.components.sourceElementFactory.source(javaAnnotation)
override val allValueArguments by c.storageManager.createLazyValue {
javaAnnotation.arguments.mapNotNull { arg ->
val name = arg.name ?: DEFAULT_ANNOTATION_MEMBER_NAME
resolveAnnotationArgument(arg)?.let { value -> name to value }
}.toMap()
}
private fun resolveAnnotationArgument(argument: JavaAnnotationArgument?): ConstantValue<*>? {
return when (argument) {
is JavaLiteralAnnotationArgument -> ConstantValueFactory.createConstantValue(argument.value)
is JavaEnumValueAnnotationArgument -> resolveFromEnumValue(argument.enumClassId, argument.entryName)
is JavaArrayAnnotationArgument -> resolveFromArray(argument.name ?: DEFAULT_ANNOTATION_MEMBER_NAME, argument.getElements())
is JavaAnnotationAsAnnotationArgument -> resolveFromAnnotation(argument.getAnnotation())
is JavaClassObjectAnnotationArgument -> resolveFromJavaClassObjectType(argument.getReferencedType())
else -> null
}
}
private fun resolveFromAnnotation(javaAnnotation: JavaAnnotation): ConstantValue<*> {
return AnnotationValue(LazyJavaAnnotationDescriptor(c, javaAnnotation))
}
private fun resolveFromArray(argumentName: Name, elements: List): ConstantValue<*>? {
if (type.isError) return null
val arrayType =
DescriptorResolverUtils.getAnnotationParameterByName(argumentName, annotationClass!!)?.type
// Try to load annotation arguments even if the annotation class is not found
?: c.components.module.builtIns.getArrayType(
Variance.INVARIANT,
ErrorUtils.createErrorType("Unknown array element type")
)
val values = elements.map {
argument -> resolveAnnotationArgument(argument) ?: NullValue()
}
return ConstantValueFactory.createArrayValue(values, arrayType)
}
private fun resolveFromEnumValue(enumClassId: ClassId?, entryName: Name?): ConstantValue<*>? {
if (enumClassId == null || entryName == null) return null
return EnumValue(enumClassId, entryName)
}
private fun resolveFromJavaClassObjectType(javaType: JavaType): ConstantValue<*>? {
// Class type is never nullable in 'Foo.class' in Java
val type = TypeUtils.makeNotNullable(c.typeResolver.transformJavaType(
javaType,
TypeUsage.COMMON.toAttributes())
)
val jlClass = c.module.resolveTopLevelClass(FqName("java.lang.Class"), NoLookupLocation.FOR_NON_TRACKED_SCOPE) ?: return null
val arguments = listOf(TypeProjectionImpl(type))
val javaClassObjectType = KotlinTypeFactory.simpleNotNullType(Annotations.EMPTY, jlClass, arguments)
return KClassValue(javaClassObjectType)
}
override fun toString(): String {
return DescriptorRenderer.FQ_NAMES_IN_TYPES.renderAnnotation(this)
}
private fun createTypeForMissingDependencies(fqName: FqName) =
c.module.findNonGenericClassAcrossDependencies(
ClassId.topLevel(fqName),
c.components.deserializedDescriptorResolver.components.notFoundClasses
)
}