/*
* Copyright 2010-2018 JetBrains s.r.o. 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.asJava.elements
import com.intellij.openapi.util.TextRange
import com.intellij.psi.*
import com.intellij.psi.scope.PsiScopeProcessor
import com.intellij.util.IncorrectOperationException
import org.jetbrains.kotlin.asJava.classes.lazyPub
class KtLightPsiJavaCodeReferenceElement(
private val ktElement: PsiElement,
reference: () -> PsiReference?,
clsDelegateProvider: () -> PsiJavaCodeReferenceElement?
) :
PsiElement by ktElement,
PsiReference by LazyPsiReferenceDelegate(ktElement, reference),
PsiJavaCodeReferenceElement {
private val delegate by lazyPub(clsDelegateProvider)
override fun advancedResolve(incompleteCode: Boolean): JavaResolveResult =
delegate?.advancedResolve(incompleteCode) ?: JavaResolveResult.EMPTY
override fun getReferenceNameElement(): PsiElement? = ktElement
override fun getTypeParameters(): Array<PsiType> = delegate?.typeParameters ?: emptyArray()
override fun getReferenceName(): String? = delegate?.referenceName
override fun isQualified(): Boolean = delegate?.isQualified ?: false
override fun processVariants(processor: PsiScopeProcessor) {
delegate?.processVariants(processor)
}
override fun multiResolve(incompleteCode: Boolean): Array<JavaResolveResult> = delegate?.multiResolve(incompleteCode) ?: emptyArray()
override fun getQualifiedName(): String? = delegate?.qualifiedName
override fun getQualifier(): PsiElement? = delegate?.qualifier
override fun getParameterList(): PsiReferenceParameterList? = delegate?.parameterList
}
private class LazyPsiReferenceDelegate(
private val psiElement: PsiElement,
referenceProvider: () -> PsiReference?
) : PsiReference {
private val delegate by lazyPub(referenceProvider)
override fun getElement(): PsiElement = psiElement
override fun resolve(): PsiElement? = delegate?.resolve()
override fun getRangeInElement(): TextRange = delegate?.rangeInElement ?: psiElement.textRange
override fun getCanonicalText(): String = delegate?.canonicalText ?: "<no-text>"
@Throws(IncorrectOperationException::class)
override fun handleElementRename(newElementName: String): PsiElement = delegate?.handleElementRename(newElementName) ?: element
@Throws(IncorrectOperationException::class)
override fun bindToElement(element: PsiElement): PsiElement =
delegate?.bindToElement(element) ?: throw IncorrectOperationException("can't rename LazyPsiReferenceDelegate")
override fun isSoft(): Boolean = delegate?.isSoft ?: false
override fun isReferenceTo(element: PsiElement): Boolean = delegate?.isReferenceTo(element) ?: false
override fun getVariants(): Array<Any> = delegate?.variants ?: emptyArray()
}