New J2K: Introduce JKFile

j2k/newSrc/org/jetbrains/kotlin/j2k/JavaToJKTreeBuilder.kt

@@ -226,8 +226,9 @@ class JavaToJKTreeBuilder(var symbolProvider: JKSymbolProvider) {
             val psi = this
             return JKClassImpl(with(modifierMapper) { modifierList.toJK() }, JKNameIdentifierImpl(name!!), classKind).also {
                 it.declarationList = psi.children.mapNotNull {
-                    ElementVisitor(this@DeclarationMapper).apply { it.accept(this) }.resultElement as? JKDeclaration
+                    ElementVisitor().apply { it.accept(this) }.resultElement as? JKDeclaration
                 }
+                backAnnotation[it] = this
                 (symbolProvider.provideDirectSymbol(psi) as? JKUniverseClassSymbol)?.run { target = it }
             }
         }
@@ -346,7 +347,7 @@ class JavaToJKTreeBuilder(var symbolProvider: JKSymbolProvider) {
         }
     }
 
-    private inner class ElementVisitor(val declarationMapper: DeclarationMapper) : JavaElementVisitor() {
+    private inner class ElementVisitor : JavaElementVisitor() {
 
         var resultElement: JKTreeElement? = null
 
@@ -363,14 +364,16 @@ class JavaToJKTreeBuilder(var symbolProvider: JKSymbolProvider) {
         }
 
         override fun visitFile(file: PsiFile) {
-            file.acceptChildren(this)
+            resultElement = JKFileImpl().apply {
+                declarationList += file.children.mapNotNull { ElementVisitor().apply { it.accept(this) }.resultElement as? JKDeclaration }
+            }
         }
     }
 
 
     fun buildTree(psi: PsiElement): JKTreeElement? {
         assert(psi.language.`is`(JavaLanguage.INSTANCE)) { "Unable to build JK Tree using Java Visitor for language ${psi.language}" }
-        val elementVisitor = ElementVisitor(declarationMapper)
+        val elementVisitor = ElementVisitor()
         psi.accept(elementVisitor)
         return elementVisitor.resultElement
     }

j2k/newSrc/org/jetbrains/kotlin/j2k/NewCodeBuilder.kt

@@ -48,6 +48,10 @@ class NewCodeBuilder {
             printer.print("/* !!! Hit visitElement for element type: ${treeElement::class} !!! */")
         }
 
+        override fun visitFile(file: JKFile) {
+            file.acceptChildren(this)
+        }
+
         override fun visitModifierList(modifierList: JKModifierList) {
             modifierList.modifiers.firstOrNull()?.accept(this)
             for (i in 1..modifierList.modifiers.lastIndex) {

j2k/newSrc/org/jetbrains/kotlin/j2k/tree/impl/jk.kt

@@ -23,6 +23,12 @@ import org.jetbrains.kotlin.j2k.tree.JKLiteralExpression.LiteralType.BOOLEAN
 import org.jetbrains.kotlin.j2k.tree.JKLiteralExpression.LiteralType.NULL
 import org.jetbrains.kotlin.j2k.tree.visitors.JKVisitor
 
+class JKFileImpl : JKFile, JKBranchElementBase() {
+    override fun <R, D> accept(visitor: JKVisitor<R, D>, data: D): R = visitor.visitFile(this, data)
+
+    override var declarationList by children<JKDeclaration>()
+}
+
 class JKClassImpl(
     modifierList: JKModifierList,
     name: JKNameIdentifier,

j2k/newSrc/org/jetbrains/kotlin/j2k/tree/jk.kt

@@ -33,6 +33,10 @@ interface JKTreeElement : JKElement {
 
 interface JKDeclaration : JKTreeElement
 
+interface JKFile : JKTreeElement, JKBranchElement {
+    var declarationList: List<JKDeclaration>
+}
+
 interface JKClass : JKDeclaration, JKModifierListOwner {
     val name: JKNameIdentifier
     var declarationList: List<JKDeclaration>

j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitor.kt

@@ -5,6 +5,7 @@ import org.jetbrains.kotlin.j2k.tree.*
 interface JKVisitor<out R, in D> {
     fun visitTreeElement(treeElement: JKTreeElement, data: D): R 
     fun visitDeclaration(declaration: JKDeclaration, data: D): R = visitTreeElement(declaration, data)
+    fun visitFile(file: JKFile, data: D): R = visitTreeElement(file, data)
     fun visitClass(klass: JKClass, data: D): R = visitDeclaration(klass, data)
     fun visitMethod(method: JKMethod, data: D): R = visitDeclaration(method, data)
     fun visitField(field: JKField, data: D): R = visitDeclaration(field, data)

j2k/newSrc/org/jetbrains/kotlin/j2k/tree/visitors/JKVisitorVoid.kt

@@ -7,6 +7,8 @@ interface JKVisitorVoid : JKVisitor<Unit, Nothing?> {
     override fun visitTreeElement(treeElement: JKTreeElement, data: Nothing?) = visitTreeElement(treeElement)
     fun visitDeclaration(declaration: JKDeclaration) = visitTreeElement(declaration, null)
     override fun visitDeclaration(declaration: JKDeclaration, data: Nothing?) = visitDeclaration(declaration)
+    fun visitFile(file: JKFile) = visitTreeElement(file, null)
+    override fun visitFile(file: JKFile, data: Nothing?) = visitFile(file)
     fun visitClass(klass: JKClass) = visitDeclaration(klass, null)
     override fun visitClass(klass: JKClass, data: Nothing?) = visitClass(klass)
     fun visitMethod(method: JKMethod) = visitDeclaration(method, null)