Move AttributeArray to compiler.common so frontend extension can share it

This commit is contained in:
Irene Dea
2021-10-05 13:05:51 -07:00
committed by Dmitriy Novozhilov
parent 82455c849d
commit 62bde2d686
14 changed files with 32 additions and 32 deletions
@@ -0,0 +1,141 @@
/*
* Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.util
sealed class ArrayMap<T : Any> : Iterable<T> {
abstract val size: Int
abstract operator fun set(index: Int, value: T)
abstract operator fun get(index: Int): T?
abstract fun copy(): ArrayMap<T>
}
internal object EmptyArrayMap : ArrayMap<Nothing>() {
override val size: Int
get() = 0
override fun set(index: Int, value: Nothing) {
throw IllegalStateException()
}
override fun get(index: Int): Nothing? {
return null
}
override fun copy(): ArrayMap<Nothing> = this
override fun iterator(): Iterator<Nothing> {
return object : Iterator<Nothing> {
override fun hasNext(): Boolean = false
override fun next(): Nothing = throw NoSuchElementException()
}
}
}
internal class OneElementArrayMap<T : Any>(val value: T, val index: Int) : ArrayMap<T>() {
override val size: Int
get() = 1
override fun set(index: Int, value: T) {
throw IllegalStateException()
}
override fun get(index: Int): T? {
return if (index == this.index) value else null
}
override fun copy(): ArrayMap<T> = OneElementArrayMap(value, index)
override fun iterator(): Iterator<T> {
return object : Iterator<T> {
private var notVisited = true
override fun hasNext(): Boolean {
return notVisited
}
override fun next(): T {
if (notVisited) {
notVisited = false
return value
} else {
throw NoSuchElementException()
}
}
}
}
}
internal class ArrayMapImpl<T : Any> private constructor(
private var data: Array<Any?>,
initialSize: Int
) : ArrayMap<T>() {
companion object {
private const val DEFAULT_SIZE = 20
private const val INCREASE_K = 2
}
constructor() : this(arrayOfNulls<Any>(DEFAULT_SIZE), 0)
override var size: Int = initialSize
private set
private fun ensureCapacity(index: Int) {
if (data.size <= index) {
data = data.copyOf(data.size * INCREASE_K)
}
}
override operator fun set(index: Int, value: T) {
ensureCapacity(index)
if (data[index] == null) {
size++
}
data[index] = value
}
override operator fun get(index: Int): T? {
@Suppress("UNCHECKED_CAST")
return data.getOrNull(index) as T?
}
override fun copy(): ArrayMap<T> = ArrayMapImpl(data.copyOf(), size)
override fun iterator(): Iterator<T> {
return object : AbstractIterator<T>() {
private var index = -1
override fun computeNext() {
do {
index++
} while (index < data.size && data[index] == null)
if (index >= data.size) {
done()
} else {
@Suppress("UNCHECKED_CAST")
setNext(data[index] as T)
}
}
}
}
fun remove(index: Int) {
if (data[index] != null) {
size--
}
data[index] = null
}
fun entries(): List<Entry<T>> {
@Suppress("UNCHECKED_CAST")
return data.mapIndexedNotNull { index, value -> if (value != null) Entry(index, value as T) else null }
}
data class Entry<T>(override val key: Int, override val value: T) : Map.Entry<Int, T>
}
@@ -0,0 +1,90 @@
/*
* Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.util
import java.util.concurrent.ConcurrentHashMap
import java.util.concurrent.atomic.AtomicInteger
import kotlin.properties.ReadOnlyProperty
import kotlin.reflect.KClass
import kotlin.reflect.KProperty
@RequiresOptIn
annotation class Protected
abstract class AbstractArrayMapOwner<K : Any, V : Any> : Iterable<V> {
protected abstract val arrayMap: ArrayMap<V>
protected abstract val typeRegistry: TypeRegistry<K, V>
abstract class AbstractArrayMapAccessor<K : Any, V : Any, T : V>(
protected val key: KClass<out K>,
protected val id: Int
) {
protected fun extractValue(thisRef: AbstractArrayMapOwner<K, V>): T? {
@Suppress("UNCHECKED_CAST")
return thisRef.arrayMap[id] as T?
}
}
protected abstract fun registerComponent(tClass: KClass<out K>, value: V)
final override fun iterator(): Iterator<V> = arrayMap.iterator()
fun isEmpty(): Boolean = arrayMap.size == 0
fun isNotEmpty(): Boolean = arrayMap.size != 0
operator fun get(index: Int): V? = arrayMap[index]
}
class ArrayMapAccessor<K : Any, V : Any, T : V>(
key: KClass<out K>,
id: Int,
val default: T? = null
) : AbstractArrayMapOwner.AbstractArrayMapAccessor<K, V, T>(key, id), ReadOnlyProperty<AbstractArrayMapOwner<K, V>, V> {
override fun getValue(thisRef: AbstractArrayMapOwner<K, V>, property: KProperty<*>): T {
return extractValue(thisRef)
?: default
?: error("No '$key'($id) in array owner: $thisRef")
}
}
class NullableArrayMapAccessor<K : Any, V : Any, T : V>(
key: KClass<out K>,
id: Int
) : AbstractArrayMapOwner.AbstractArrayMapAccessor<K, V, T>(key, id), ReadOnlyProperty<AbstractArrayMapOwner<K, V>, V?> {
override fun getValue(thisRef: AbstractArrayMapOwner<K, V>, property: KProperty<*>): T? {
return extractValue(thisRef)
}
}
abstract class TypeRegistry<K : Any, V : Any> {
private val idPerType = ConcurrentHashMap<KClass<out K>, Int>()
private val idCounter = AtomicInteger(0)
fun <T : V, KK : K> generateAccessor(kClass: KClass<KK>, default: T? = null): ArrayMapAccessor<K, V, T> {
return ArrayMapAccessor(kClass, getId(kClass), default)
}
fun <T : V, KK : K> generateNullableAccessor(kClass: KClass<KK>): NullableArrayMapAccessor<K, V, T> {
return NullableArrayMapAccessor(kClass, getId(kClass))
}
fun <KK : K> generateAnyNullableAccessor(kClass: KClass<KK>): NullableArrayMapAccessor<K, V, *> {
return NullableArrayMapAccessor(kClass, getId(kClass))
}
fun <T : K> getId(kClass: KClass<T>): Int {
return idPerType.computeIfAbsent(kClass) { idCounter.getAndIncrement() }
}
fun allValuesThreadUnsafeForRendering(): Map<KClass<out K>, Int> {
return idPerType
}
protected val indices: Collection<Int>
get() = idPerType.values
}
@@ -0,0 +1,67 @@
/*
* Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.util
import kotlin.reflect.KClass
/**
* [AttributeArrayOwner] based on different implementations of [ArrayMap] and switches them
* depending on array map fullness
* [AttributeArrayOwner] can be used in classes with many instances,
* like user data for Fir elements or attributes for cone types
*
* Note that you can remove attributes from [AttributeArrayOwner] despite
* from components in [ComponentArrayOwner]
*/
abstract class AttributeArrayOwner<K : Any, T : Any> protected constructor(
arrayMap: ArrayMap<T>
) : AbstractArrayMapOwner<K, T>() {
final override var arrayMap: ArrayMap<T> = arrayMap
private set
@Suppress("UNCHECKED_CAST")
constructor() : this(EmptyArrayMap as ArrayMap<T>)
final override fun registerComponent(tClass: KClass<out K>, value: T) {
val id = typeRegistry.getId(tClass)
when (arrayMap.size) {
0 -> {
arrayMap = OneElementArrayMap(value, id)
return
}
1 -> {
val map = arrayMap as OneElementArrayMap<T>
if (map.index == id) {
arrayMap = OneElementArrayMap(value, id)
return
} else {
arrayMap = ArrayMapImpl()
arrayMap[map.index] = map.value
}
}
}
arrayMap[id] = value
}
protected fun removeComponent(tClass: KClass<out K>) {
val id = typeRegistry.getId(tClass)
if (arrayMap[id] == null) return
@Suppress("UNCHECKED_CAST")
when (arrayMap.size) {
1 -> arrayMap = EmptyArrayMap as ArrayMap<T>
else -> {
val map = arrayMap as ArrayMapImpl<T>
map.remove(id)
if (map.size == 1) {
val (index, value) = map.entries().first()
arrayMap = OneElementArrayMap(value, index)
}
}
}
}
}
@@ -0,0 +1,26 @@
/*
* Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.util
import kotlin.reflect.KClass
/**
* [ComponentArrayOwner] based on [ArrayMap] with flexible size and should be used for
* storing services in entities with limited number of instances, like FirSession
*/
abstract class ComponentArrayOwner<K : Any, V : Any> : AbstractArrayMapOwner<K, V>() {
final override val arrayMap: ArrayMap<V> =
ArrayMapImpl()
final override fun registerComponent(tClass: KClass<out K>, value: V) {
arrayMap[typeRegistry.getId(tClass)] = value
}
protected operator fun get(key: KClass<out K>): V {
val id = typeRegistry.getId(key)
return arrayMap[id] ?: error("No '$key'($id) component in array: $this")
}
}
@@ -0,0 +1,27 @@
/*
* Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.util
import java.lang.ref.WeakReference
class WeakPair<K, V>(first: K, second: V) {
private val firstReference: WeakReference<K> = WeakReference(first)
private val secondReference: WeakReference<V> = WeakReference(second)
val first: K?
get() = firstReference.get()
val second: V?
get() = secondReference.get()
}
operator fun <K, V> WeakPair<K, V>?.component1(): K? {
return this?.first
}
operator fun <K, V> WeakPair<K, V>?.component2(): V? {
return this?.second
}