org.jetbrains.kotlin.asJava.lightClassUtils.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.asJava
import com.intellij.psi.*
import org.jetbrains.kotlin.psi.*
import org.jetbrains.kotlin.psi.psiUtil.getNonStrictParentOfType
import org.jetbrains.kotlin.psi.psiUtil.isExtensionDeclaration
import org.jetbrains.kotlin.utils.addToStdlib.singletonList
import org.jetbrains.kotlin.utils.addToStdlib.singletonOrEmptyList
import java.util.*
public fun JetClassOrObject.toLightClass(): KotlinLightClass? = LightClassUtil.getPsiClass(this) as KotlinLightClass?
public fun JetDeclaration.toLightElements(): List =
when (this) {
is JetClassOrObject -> LightClassUtil.getPsiClass(this).singletonOrEmptyList()
is JetNamedFunction,
is JetSecondaryConstructor -> LightClassUtil.getLightClassMethods(this as JetFunction)
is JetProperty -> LightClassUtil.getLightClassPropertyMethods(this).toList()
is JetPropertyAccessor -> LightClassUtil.getLightClassAccessorMethod(this).singletonOrEmptyList()
is JetParameter -> ArrayList().let { elements ->
toPsiParameters().toCollection(elements)
LightClassUtil.getLightClassPropertyMethods(this).toCollection(elements)
elements
}
is JetTypeParameter -> toPsiTypeParameters()
else -> listOf()
}
public fun PsiElement.toLightMethods(): List =
when (this) {
is JetFunction -> LightClassUtil.getLightClassMethods(this)
is JetProperty -> LightClassUtil.getLightClassPropertyMethods(this).toList()
is JetParameter -> LightClassUtil.getLightClassPropertyMethods(this).toList()
is JetPropertyAccessor -> LightClassUtil.getLightClassAccessorMethods(this)
is JetClass -> LightClassUtil.getPsiClass(this)?.getConstructors()?.first().singletonOrEmptyList()
is PsiMethod -> this.singletonList()
else -> listOf()
}
public fun PsiElement.getRepresentativeLightMethod(): PsiMethod? =
when (this) {
is JetFunction -> LightClassUtil.getLightClassMethod(this)
is JetProperty -> LightClassUtil.getLightClassPropertyMethods(this).getter
is JetParameter -> LightClassUtil.getLightClassPropertyMethods(this).getter
is JetPropertyAccessor -> LightClassUtil.getLightClassAccessorMethod(this)
is PsiMethod -> this
else -> null
}
public fun JetParameter.toPsiParameters(): Collection {
val paramList = getNonStrictParentOfType() ?: return emptyList()
val paramIndex = paramList.getParameters().indexOf(this)
val owner = paramList.getParent()
val lightParamIndex = if (owner is JetDeclaration && owner.isExtensionDeclaration()) paramIndex + 1 else paramIndex
val methods: Collection =
when (owner) {
is JetFunction -> LightClassUtil.getLightClassMethods(owner)
is JetPropertyAccessor -> LightClassUtil.getLightClassAccessorMethods(owner)
else -> null
} ?: return emptyList()
return methods.map { it.getParameterList().getParameters()[lightParamIndex] }
}
public fun JetTypeParameter.toPsiTypeParameters(): List {
val paramList = getNonStrictParentOfType()
if (paramList == null) return listOf()
val paramIndex = paramList.getParameters().indexOf(this)
val jetDeclaration = paramList.getNonStrictParentOfType() ?: return listOf()
val lightOwners = jetDeclaration.toLightElements()
return lightOwners.map { lightOwner -> (lightOwner as PsiTypeParameterListOwner).getTypeParameters()[paramIndex] }
}
// Returns original declaration if given PsiElement is a Kotlin light element, and element itself otherwise
public val PsiElement.unwrapped: PsiElement?
get() = if (this is KotlinLightElement<*, *>) getOrigin() else this
public val PsiElement.namedUnwrappedElement: PsiNamedElement?
get() = unwrapped?.getNonStrictParentOfType()