org.jetbrains.kotlin.psi.userDataUtil.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.psi
import com.intellij.openapi.util.Key
import com.intellij.openapi.util.UserDataHolder
import com.intellij.psi.PsiElement
import kotlin.reflect.KProperty
class UserDataProperty(val key: Key) {
operator fun getValue(thisRef: R, desc: KProperty<*>) = thisRef.getUserData(key)
operator fun setValue(thisRef: R, desc: KProperty<*>, value: T?) = thisRef.putUserData(key, value)
}
class NotNullableUserDataProperty(val key: Key, val defaultValue: T) {
operator fun getValue(thisRef: R, desc: KProperty<*>) = thisRef.getUserData(key) ?: defaultValue
operator fun setValue(thisRef: R, desc: KProperty<*>, value: T) {
thisRef.putUserData(key, if (value != defaultValue) value else null)
}
}
class CopyablePsiUserDataProperty(val key: Key) {
operator fun getValue(thisRef: R, property: KProperty<*>) = thisRef.getCopyableUserData(key)
operator fun setValue(thisRef: R, property: KProperty<*>, value: T?) = thisRef.putCopyableUserData(key, value)
}
class NotNullablePsiCopyableUserDataProperty(val key: Key, val defaultValue: T) {
operator fun getValue(thisRef: R, property: KProperty<*>) = thisRef.getCopyableUserData(key) ?: defaultValue
operator fun setValue(thisRef: R, property: KProperty<*>, value: T) {
thisRef.putCopyableUserData(key, if (value != defaultValue) value else null)
}
}