191: fix for KotlinUastReferencesTest reference target assertion added in 191

plugins/uast-kotlin/tests/KotlinUastReferencesTest.kt.191

@@ -0,0 +1,124 @@
+/*
+ * Copyright 2010-2019 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.uast.test.kotlin
+
+import com.intellij.openapi.Disposable
+import com.intellij.openapi.application.ApplicationManager
+import com.intellij.openapi.extensions.Extensions
+import com.intellij.openapi.util.Disposer
+import com.intellij.patterns.uast.injectionHostUExpression
+import com.intellij.psi.*
+import com.intellij.psi.impl.source.resolve.reference.PsiReferenceContributorEP
+import com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry
+import com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistryImpl
+import com.intellij.psi.util.PropertyUtil
+import com.intellij.testFramework.LightProjectDescriptor
+import com.intellij.testFramework.registerServiceInstance
+import org.jetbrains.kotlin.idea.test.KotlinLightCodeInsightFixtureTestCase
+import org.jetbrains.kotlin.idea.test.KotlinWithJdkAndRuntimeLightProjectDescriptor
+import org.jetbrains.uast.UExpression
+import org.jetbrains.uast.evaluateString
+import org.jetbrains.uast.toUElementOfType
+import org.junit.Test
+import kotlin.test.fail
+
+
+class KotlinUastReferencesTest : KotlinLightCodeInsightFixtureTestCase() {
+
+    override fun getProjectDescriptor(): LightProjectDescriptor = KotlinWithJdkAndRuntimeLightProjectDescriptor.INSTANCE
+
+
+    @Test
+    fun `test original getter is visible when reference is under renaming`() {
+
+        registerReferenceProviders(testRootDisposable) {
+            registerUastReferenceProvider(injectionHostUExpression(), uastInjectionHostReferenceProvider { _, psiLanguageInjectionHost ->
+                arrayOf(GetterReference("KotlinBean", psiLanguageInjectionHost))
+            })
+        }
+
+        myFixture.configureByText(
+            "KotlinBean.kt", """
+            data class KotlinBean(val myF<caret>ield: String)
+
+            val reference = "myField"
+
+        """.trimIndent()
+        )
+
+        myFixture.renameElementAtCaret("myRenamedField")
+
+        myFixture.checkResult(
+            """
+                data class KotlinBean(val myRenamedField: String)
+
+                val reference = "myRenamedField"
+
+        """.trimIndent()
+        )
+
+    }
+
+}
+
+private class GetterReference(
+    val className: String,
+    psiElement: PsiElement
+) : PsiReferenceBase<PsiElement>(psiElement) {
+    override fun resolve(): PsiMethod? {
+        val psiClass = JavaPsiFacade.getInstance(element.project).findClass(className, element.resolveScope) ?: return null
+        val name = element.toUElementOfType<UExpression>()?.evaluateString() ?: return null
+        return PropertyUtil.getGetters(psiClass, name).firstOrNull()
+    }
+
+    override fun handleElementRename(newElementName: String): PsiElement {
+        val resolve = resolve()
+            ?: fail("can't resolve during rename, looks like someone renamed or removed the source element before updating references")
+
+        val newName =
+            if (PropertyUtil.getPropertyName(resolve) != null)
+                PropertyUtil.getPropertyName(newElementName) ?: newElementName
+            else newElementName
+
+        return super.handleElementRename(newName)
+    }
+
+    override fun getVariants(): Array<Any> = emptyArray()
+}
+
+
+fun registerReferenceProviders(disposable: Disposable, registerContributors: PsiReferenceRegistrar.() -> Unit) {
+    registerReferenceContributor(object : PsiReferenceContributor() {
+        override fun registerReferenceProviders(registrar: PsiReferenceRegistrar) = registrar.registerContributors()
+    }, disposable)
+}
+
+fun registerReferenceContributor(contributor: PsiReferenceContributor, disposable: Disposable) {
+    val referenceContributorEp = Extensions.getArea(null).getExtensionPoint<PsiReferenceContributorEP>(PsiReferenceContributor.EP_NAME.name)
+
+    val contributorEp = object : PsiReferenceContributorEP() {
+        override fun getInstance(): PsiReferenceContributor = contributor
+    }
+
+    referenceContributorEp.registerExtension(contributorEp)
+
+    val application = ApplicationManager.getApplication()
+
+    //we need a fresh ReferenceProvidersRegistry after updating ReferenceContributors
+    val oldReferenceProviderRegistry =
+        application.picoContainer.getComponentInstance(ReferenceProvidersRegistry::class.java) as ReferenceProvidersRegistry
+    application.registerServiceInstance(ReferenceProvidersRegistry::class.java, ReferenceProvidersRegistryImpl())
+
+    Disposer.register(disposable, Disposable {
+        referenceContributorEp.unregisterExtension(contributorEp)
+        application.registerServiceInstance(ReferenceProvidersRegistry::class.java, oldReferenceProviderRegistry)
+    })
+
+}
+
+
+
+