org.jetbrains.kotlin.load.java.lazy.descriptors.MemberIndex.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.descriptors
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.load.java.structure.*
import org.jetbrains.kotlin.load.java.components.DescriptorResolverUtils
import org.jetbrains.kotlin.utils.valuesToMap
import java.util.HashSet
interface MemberIndex {
fun findMethodsByName(name: Name): Collection
fun getMethodNames(nameFilter: (Name) -> Boolean): Collection
fun findFieldByName(name: Name): JavaField?
fun getAllFieldNames(): Collection
}
object EMPTY_MEMBER_INDEX : MemberIndex {
override fun findMethodsByName(name: Name) = listOf()
override fun getMethodNames(nameFilter: (Name) -> Boolean) = listOf()
override fun findFieldByName(name: Name): JavaField? = null
override fun getAllFieldNames() = listOf()
}
open class ClassMemberIndex(val jClass: JavaClass, val memberFilter: (JavaMember) -> Boolean) : MemberIndex {
private val methodFilter = {
m: JavaMethod ->
memberFilter(m) && !DescriptorResolverUtils.isObjectMethodInInterface(m)
}
private val methods = jClass.getMethods().asSequence().filter(methodFilter).groupBy { m -> m.getName() }
private val fields = jClass.getFields().asSequence().filter(memberFilter).valuesToMap { m -> m.getName() }
override fun findMethodsByName(name: Name): Collection = methods[name] ?: listOf()
override fun getMethodNames(nameFilter: (Name) -> Boolean): Collection = jClass.getAllMemberNames(methodFilter) { getMethods() }
override fun findFieldByName(name: Name): JavaField? = fields[name]
override fun getAllFieldNames(): Collection = jClass.getAllMemberNames(memberFilter) { getFields() }
}
private fun JavaClass.getAllMemberNames(filter: (M) -> Boolean, getMembers: JavaClass.() -> Collection): Set {
val result = HashSet()
val visitedSuperClasses = HashSet()
fun JavaClass.visit(): Unit {
if (!visitedSuperClasses.add(this)) return
for (member in getMembers()) {
if (filter(member)) {
result.add(member.getName())
}
}
for (supertype in getSupertypes()) {
val classifier = supertype.getClassifier()
if (classifier is JavaClass) {
classifier.visit()
}
}
}
this.visit()
return result
}