Fixed bug with class using data class as type parameter in supers list

idea/idea-analysis/src/org/jetbrains/kotlin/idea/search/usagesSearch/destructuringDeclarationUsages.kt

@@ -21,7 +21,6 @@ import com.intellij.lang.java.JavaLanguage
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.psi.*
 import com.intellij.psi.search.*
-import com.intellij.psi.search.searches.ClassInheritorsSearch
 import com.intellij.psi.search.searches.ReferencesSearch
 import com.intellij.util.Processor
 import org.jetbrains.kotlin.KtNodeTypes
@@ -187,29 +186,7 @@ private class Processor(
             return
         }
 
-        val parameters = ClassInheritorsSearch.SearchParameters(psiClass, GlobalSearchScope.allScope(project), true, true, false)
+        addClassToProcess(psiClass)
-        val classesToSearch = listOf(psiClass) + ClassInheritorsSearch.search(parameters).findAll()
-        testLog?.add("Searched inheritors of ${psiClass.logPresentation()}")
-
-        for (classToSearch in classesToSearch) {
-            testLog?.add("Searched references to ${classToSearch.logPresentation()}")
-            ReferencesSearch.search(classToSearch).forEach(Processor processor@ { reference -> //TODO: see KT-13607
-                if (processDataClassUsage(reference)) return@processor true
-
-                if (destructuringDeclarationUsageSearchMode != ALWAYS_SMART) {
-                    plainSearchHandler(searchScope)
-                    return@processor false
-                }
-
-                val element = reference.element
-                val document = PsiDocumentManager.getInstance(project).getDocument(element.containingFile)
-                val lineAndCol = DiagnosticUtils.offsetToLineAndColumn(document, element.startOffset)
-                error("Unsupported reference: '${element.text}' in ${element.containingFile.name} line ${lineAndCol.line} column ${lineAndCol.column}")
-            })
-
-            // we must use plain search inside our data class (and inheritors) because implicit 'this' can happen anywhere
-            (classToSearch as? KtLightClass)?.kotlinOrigin?.let { usePlainSearch(it) }
-        }
 
         processTasks()
 
@@ -230,6 +207,31 @@ private class Processor(
         }
     }
 
+    private fun addClassToProcess(classToSearch: PsiClass) {
+        data class ProcessClassUsagesTask(val classToSearch: PsiClass) : Task {
+            override fun perform() {
+                testLog?.add("Searched references to ${classToSearch.logPresentation()}")
+                ReferencesSearch.search(classToSearch).forEach(Processor processor@ { reference -> //TODO: see KT-13607
+                    if (processDataClassUsage(reference)) return@processor true
+
+                    if (destructuringDeclarationUsageSearchMode != ALWAYS_SMART) {
+                        plainSearchHandler(searchScope)
+                        return@processor false
+                    }
+
+                    val element = reference.element
+                    val document = PsiDocumentManager.getInstance(project).getDocument(element.containingFile)
+                    val lineAndCol = DiagnosticUtils.offsetToLineAndColumn(document, element.startOffset)
+                    error("Unsupported reference: '${element.text}' in ${element.containingFile.name} line ${lineAndCol.line} column ${lineAndCol.column}")
+                })
+
+                // we must use plain search inside our data class (and inheritors) because implicit 'this' can happen anywhere
+                (classToSearch as? KtLightClass)?.kotlinOrigin?.let { usePlainSearch(it) }
+            }
+        }
+        addTask(ProcessClassUsagesTask(classToSearch))
+    }
+
     private enum class CallableToProcessKind {
         HAS_DATA_CLASS_TYPE,
         PROCESS_LAMBDAS
@@ -407,15 +409,20 @@ private class Processor(
             }
 
             is KtConstructorCalleeExpression -> {
-                if (typeRefParent.parent is KtSuperTypeCallEntry) {
+                val parent = typeRefParent.parent
-                    // usage in super type list - just ignore, inheritors are processed above
+                if (parent is KtSuperTypeCallEntry) {
+                    val classOrObject = (parent.parent as KtSuperTypeList).parent as KtClassOrObject
+                    val psiClass = classOrObject.toLightClass()
+                    psiClass?.let { addClassToProcess(it) }
                     return true
                 }
             }
 
             is KtSuperTypeListEntry -> {
                 if (typeRef == typeRefParent.typeReference) {
-                    // usage in super type list - just ignore, inheritors are processed above
+                    val classOrObject = (typeRefParent.parent as KtSuperTypeList).parent as KtClassOrObject
+                    val psiClass = classOrObject.toLightClass()
+                    psiClass?.let { addClassToProcess(it) }
                     return true
                 }
             }
@@ -492,6 +499,16 @@ private class Processor(
                     }
                     break@ParentsLoop
                 }
+
+                is PsiReferenceList -> {
+                    if (parent.role == PsiReferenceList.Role.EXTENDS_LIST || parent.role == PsiReferenceList.Role.IMPLEMENTS_LIST) {
+                        val psiClass = parent.parent as PsiClass
+                        if (!psiClass.isPrivateOrLocal()) {
+                            addClassToProcess(psiClass)
+                        }
+                    }
+                    break@ParentsLoop
+                }
             }
 
             prev = parent

idea/testData/findUsages/kotlin/conventions/components/SAM.log

@@ -1,5 +1,4 @@
 Resolved java class to descriptor: JavaSAM
-Searched inheritors of pack.A
 Searched references to JavaClass.takeSAM() in Kotlin files
 Searched references to JavaSAM in java files
 Searched references to pack.A

idea/testData/findUsages/kotlin/conventions/components/callableReferences.log

@@ -6,7 +6,6 @@ Checked type of X.f2()
 Checked type of constructor
 Checked type of fun2
 Checked type of fun3
-Searched inheritors of A
 Searched references to A
 Searched references to X.f2() in Kotlin files
 Searched references to constructor in Kotlin files

idea/testData/findUsages/kotlin/conventions/components/companionObjectAccess.log

@@ -1,4 +1,3 @@
-Searched inheritors of A
 Searched references to A
 Used plain search in LocalSearchScope:
     CLASS:A

idea/testData/findUsages/kotlin/conventions/components/componentFunForGenericType1.log

@@ -1,6 +1,5 @@
 Checked type of (x, y)
 Checked type of f()
-Searched inheritors of X
 Searched references to X
 Searched references to f() in Kotlin files
 Used plain search in LocalSearchScope:

idea/testData/findUsages/kotlin/conventions/components/componentFunForGenericType2.log

@@ -1,7 +1,6 @@
 Checked type of (x1, y1)
 Checked type of f()
 Checked type of g()
-Searched inheritors of X
 Searched references to X
 Searched references to f() in Kotlin files
 Used plain search in LocalSearchScope:

idea/testData/findUsages/kotlin/conventions/components/dataClass.0.java

@@ -1,5 +1,3 @@
-// PSI_ELEMENT: org.jetbrains.kotlin.psi.KtParameter
-// OPTIONS: usages
 import pack.A;
 
 import java.util.Collections;

idea/testData/findUsages/kotlin/conventions/components/dataClass.0.kt

@@ -24,4 +24,4 @@ fun List<A>.ext1() {
     val (x, y) = get(0)
 }
 
-fun <T> T.getThis(): T = this
+fun <T> T.getThis(): T = this

idea/testData/findUsages/kotlin/conventions/components/dataClass.1.java

@@ -0,0 +1,6 @@
+import pack.A;
+
+import java.util.List;
+
+public abstract class JavaClass2 implements List<A> {
+}

idea/testData/findUsages/kotlin/conventions/components/dataClass.1.kt

@@ -20,3 +20,8 @@ fun g() = A()
 fun h() = g()
 
 fun listOfA() = listOf<A>(A(1, "", ""))
+
+fun test2(p1: JavaClass2, p2: JavaClass3) {
+    val (x1, y1) = p1[0]
+    val (x2, y2) = p2[0]
+}

idea/testData/findUsages/kotlin/conventions/components/dataClass.2.java

@@ -0,0 +1,6 @@
+import pack.A;
+
+import java.util.ArrayList;
+
+public class JavaClass3 extends ArrayList<A> {
+}

idea/testData/findUsages/kotlin/conventions/components/dataClass.log

@@ -1,5 +1,7 @@
 Checked type of (x, y, z)
+Checked type of (x1, y1)
 Checked type of (x1, y1, z1)
+Checked type of (x2, y2)
 Checked type of (x2, y2, z2)
 Checked type of (x3, y3, z3)
 Checked type of (x4, y4, z4)
@@ -9,15 +11,20 @@ Checked type of g()
 Checked type of h()
 Checked type of listOfA()
 Checked type of listOfA()
-Searched inheritors of pack.A
 Searched references to JavaClass.getA() in Kotlin files
+Searched references to JavaClass2
+Searched references to JavaClass3
 Searched references to a in Kotlin files
 Searched references to f() in Kotlin files
 Searched references to g() in Kotlin files
 Searched references to h() in Kotlin files
 Searched references to listOfA() in Kotlin files
 Searched references to pack.A
+Searched references to pack.X
+Searched references to parameter p1 in test2() in Kotlin files
+Searched references to parameter p2 in test2() in Kotlin files
 Used plain search in LocalSearchScope:
     CLASS:A
+    CLASS:X
     FUN:ext1
     FUN:ext1

idea/testData/findUsages/kotlin/conventions/components/dataClass.results.txt

@@ -5,6 +5,8 @@
 [dataClass.1.kt] Value read 11 val (x3, y3, z3) = h()
 [dataClass.1.kt] Value read 13 val (x4, y4, z4) = listOfA()[0]
 [dataClass.1.kt] Value read 15 val (x5, y5, z5) = javaClass.getA()[0]
+[dataClass.1.kt] Value read 25 val (x1, y1) = p1[0]
+[dataClass.1.kt] Value read 26 val (x2, y2) = p2[0]
 [dataClass.1.kt] Value read 5 a.n
 [dataClass.1.kt] Value read 8 val (x, y, z) = a
 [dataClass.1.kt] Value read 9 val (x1, y1, z1) = f()

idea/testData/findUsages/kotlin/conventions/components/dataClassComponentByRef.log

@@ -1,6 +1,5 @@
 Checked type of (x, y, z)
 Checked type of a
-Searched inheritors of A
 Searched references to A
 Searched references to a in Kotlin files
 Used plain search in LocalSearchScope:

idea/testData/findUsages/kotlin/conventions/components/dataClassInsideDataClass.log

@@ -2,9 +2,6 @@ Checked type of (a, n)
 Checked type of (a1, n1)
 Checked type of (x, y, z)
 Checked type of (x1, y1, z1)
-Searched inheritors of A
-Searched inheritors of B
-Searched inheritors of C
 Searched references to A
 Searched references to B
 Searched references to C

idea/testData/findUsages/kotlin/conventions/components/extensionComponentFun.0.kt

@@ -5,6 +5,13 @@ interface X
 
 class Y : X
 
+open class G<T> {
+    fun get(): T = TODO()
+}
+
+abstract class Z1 : List<X>
+abstract class Z2 : G<X>()
+
 operator fun X.component1(): Int = 0
 operator fun X.<caret>component2(): Int = 1
 
@@ -17,3 +24,8 @@ fun test() {
 fun Y.ext() {
     val (a, b) = this
 }
+
+fun g(z1: Z1, z2: Z2) {
+    val (x1, y1) = z1[0]
+    val (x2, y2) = z2.get()
+}

idea/testData/findUsages/kotlin/conventions/components/extensionComponentFun.log

@@ -1,12 +1,19 @@
 Checked type of (x, y)
+Checked type of (x1, y1)
+Checked type of (x2, y2)
 Checked type of f()
-Searched inheritors of X
 Searched references to X
 Searched references to Y
+Searched references to Z1
+Searched references to Z2
 Searched references to f() in Kotlin files
+Searched references to parameter z1 in g() in Kotlin files
+Searched references to parameter z2 in g() in Kotlin files
 Used plain search in LocalSearchScope:
     CLASS:X
     CLASS:Y
+    CLASS:Z1
+    CLASS:Z2
     FUN:component1
     FUN:component2
     FUN:ext

idea/testData/findUsages/kotlin/conventions/components/extensionComponentFun.results.txt

@@ -1,2 +1,4 @@
-Value read 14 val (x, y) = f()
+Value read 21 val (x, y) = f()
-Value read 18 val (a, b) = this
+Value read 25 val (a, b) = this
+Value read 29 val (x1, y1) = z1[0]
+Value read 30 val (x2, y2) = z2.get()

idea/testData/findUsages/kotlin/conventions/components/for.log

@@ -1,7 +1,6 @@
 Checked type of (x, y)
 Checked type of (x, y, z)
 Checked type of parameter a in FOR
-Searched inheritors of A
 Searched references to A
 Searched references to parameter a in FOR in Kotlin files
 Used plain search in LocalSearchScope:

idea/testData/findUsages/kotlin/conventions/components/isAndAs.log

@@ -1,7 +1,6 @@
 Checked type of (x, y)
 Checked type of (x1, y1)
 Checked type of list
-Searched inheritors of A
 Searched references to A
 Searched references to list in Kotlin files
 Used plain search in LocalSearchScope:

idea/testData/findUsages/kotlin/conventions/components/lambdas.log

@@ -1,4 +1,3 @@
-Searched inheritors of A
 Searched references to A
 Searched references to parameter p in foo() in Kotlin files
 Searched references to parameter p in takeExtFun() in Kotlin files

idea/testData/findUsages/kotlin/conventions/components/mayTypeAffectAncestors.log

@@ -1,6 +1,5 @@
 Checked type of (x1, y1)
 Checked type of y1()
-Searched inheritors of A
 Searched references to A
 Searched references to parameter a in condition() in Kotlin files
 Searched references to parameter a in x() in Kotlin files

idea/testData/findUsages/kotlin/conventions/components/memberComponentFun.log

@@ -4,7 +4,6 @@ Checked type of (x2, y2)
 Checked type of f()
 Checked type of g()
 Checked type of h()
-Searched inheritors of X
 Searched references to X
 Searched references to Y
 Searched references to Z

idea/testData/findUsages/kotlin/conventions/components/operators.log

@@ -1,4 +1,3 @@
-Searched inheritors of A
 Searched references to A
 Used plain search in LocalSearchScope:
     CLASS:A

idea/testData/findUsages/kotlin/conventions/components/recursiveDataClass1.log

@@ -1,7 +1,6 @@
 Checked type of (a1, n1)
 Checked type of (a2, n2)
 Checked type of (a2, n2)
-Searched inheritors of A
 Searched references to A
 Searched references to parameter a in A() in Kotlin files
 Searched references to parameter a in f() in Kotlin files

idea/testData/findUsages/kotlin/conventions/components/recursiveDataClass2.log

@@ -1,7 +1,5 @@
 Checked type of (a1, s)
 Checked type of (b, n)
-Searched inheritors of A
-Searched inheritors of B
 Searched references to A
 Searched references to B
 Searched references to a1 in Kotlin files

idea/testData/findUsages/kotlin/conventions/components/when.log

@@ -1,4 +1,3 @@
-Searched inheritors of A
 Searched references to A
 Used plain search in LocalSearchScope:
     CLASS:A

idea/testData/findUsages/kotlin/findParameterUsages/kotlinComponentFunctionParameterUsages.log

@@ -1,4 +1,3 @@
-Searched inheritors of test.KotlinDataClass
 Searched references to test.KotlinDataClass
 Used plain search in LocalSearchScope:
     CLASS:KotlinDataClass