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.descriptors.PackageFragmentDescriptor
import org.jetbrains.kotlin.descriptors.PackageFragmentProvider
import org.jetbrains.kotlin.load.java.lazy.descriptors.LazyJavaPackageFragment
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.storage.CacheWithNotNullValues
import org.jetbrains.kotlin.utils.addIfNotNull
class LazyJavaPackageFragmentProvider(
components: JavaResolverComponents
) : PackageFragmentProvider {
private val c = LazyJavaResolverContext(components, TypeParameterResolver.EMPTY, lazyOf(null))
private val packageFragments: CacheWithNotNullValues =
c.storageManager.createCacheWithNotNullValues()
private fun getPackageFragment(fqName: FqName): LazyJavaPackageFragment? {
val jPackage = c.components.finder.findPackage(fqName) ?: return null
return packageFragments.computeIfAbsent(fqName) {
LazyJavaPackageFragment(c, jPackage)
}
}
override fun getPackageFragments(fqName: FqName) = listOfNotNull(getPackageFragment(fqName))
override fun collectPackageFragments(fqName: FqName, packageFragments: MutableCollection) =
packageFragments.addIfNotNull(getPackageFragment(fqName))
override fun getSubPackagesOf(fqName: FqName, nameFilter: (Name) -> Boolean) =
getPackageFragment(fqName)?.getSubPackageFqNames().orEmpty()
}