org.jetbrains.kotlin.load.java.lazy.LazyJavaPackageFragmentProvider.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.load.java.lazy
import org.jetbrains.kotlin.builtins.ReflectionTypes
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.ModuleDescriptor
import org.jetbrains.kotlin.descriptors.PackageFragmentProvider
import org.jetbrains.kotlin.incremental.components.NoLookupLocation
import org.jetbrains.kotlin.load.java.lazy.descriptors.LazyJavaPackageFragment
import org.jetbrains.kotlin.load.java.structure.JavaClass
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.storage.MemoizedFunctionToNullable
import org.jetbrains.kotlin.utils.emptyOrSingletonList
class LazyJavaPackageFragmentProvider(
components: JavaResolverComponents,
module: ModuleDescriptor,
reflectionTypes: ReflectionTypes
) : PackageFragmentProvider {
private val c =
LazyJavaResolverContext(components, this, FragmentClassResolver(), module, reflectionTypes, TypeParameterResolver.EMPTY)
private val packageFragments: MemoizedFunctionToNullable =
c.storageManager.createMemoizedFunctionWithNullableValues {
fqName ->
val jPackage = c.components.finder.findPackage(fqName)
if (jPackage != null) {
LazyJavaPackageFragment(c, jPackage)
}
else null
}
private fun getPackageFragment(fqName: FqName) = packageFragments(fqName)
override fun getPackageFragments(fqName: FqName) = emptyOrSingletonList(getPackageFragment(fqName))
override fun getSubPackagesOf(fqName: FqName, nameFilter: (Name) -> Boolean) =
getPackageFragment(fqName)?.getMemberScope()?.getSubPackages().orEmpty()
fun getClass(javaClass: JavaClass): ClassDescriptor? = c.javaClassResolver.resolveClass(javaClass)
private inner class FragmentClassResolver : LazyJavaClassResolver {
override fun resolveClass(javaClass: JavaClass): ClassDescriptor? {
val fqName = javaClass.fqName
if (fqName != null && javaClass.originKind == JavaClass.OriginKind.KOTLIN_LIGHT_CLASS) {
return c.components.javaResolverCache.getClassResolvedFromSource(fqName)
}
javaClass.outerClass?.let { outerClass ->
val outerClassScope = resolveClass(outerClass)?.unsubstitutedInnerClassesScope
return outerClassScope?.getContributedClassifier(javaClass.name, NoLookupLocation.FROM_JAVA_LOADER) as? ClassDescriptor
}
val kotlinResult = c.resolveKotlinBinaryClass(c.components.kotlinClassFinder.findKotlinClass(javaClass))
if (kotlinResult is KotlinClassLookupResult.Found) return kotlinResult.descriptor
if (fqName == null) return null
return getPackageFragment(fqName.parent())?.resolveTopLevelClass(javaClass)
}
}
}