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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.netbeans.api.java.source;
import com.sun.source.tree.ImportTree;
import com.sun.source.tree.MemberSelectTree;
import com.sun.source.tree.Tree;
import com.sun.source.tree.Tree.Kind;
import com.sun.source.util.TreePath;
import org.netbeans.api.java.source.support.ErrorAwareTreeScanner;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.tree.JCTree;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.util.StringTokenizer;
import java.util.logging.Logger;
import java.util.logging.Level;
import javax.lang.model.element.Element;
import javax.lang.model.element.ElementKind;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.Name;
import javax.lang.model.element.TypeElement;
import javax.swing.text.Position;
import javax.swing.text.Position.Bias;
import javax.tools.JavaFileObject;
import org.netbeans.api.annotations.common.CheckForNull;
import org.netbeans.api.annotations.common.NonNull;
import org.netbeans.modules.java.source.PositionRefProvider;
import org.netbeans.modules.java.source.parsing.FileObjects;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
import org.openide.filesystems.URLMapper;
import org.openide.util.Exceptions;
import org.openide.util.Parameters;
/**
* Represents a handle for {@link TreePath} which can be kept and later resolved
* by another javac. The Javac {@link Element}s are valid only in the single
* {@link javax.tools.JavaCompiler.CompilationTask} or single run of the
* {@link org.netbeans.api.java.source.CancellableTask}. If the client needs to
* keep a reference to the {@link TreePath} and use it in the other CancellableTask
* he has to serialize it into the {@link TreePathHandle}.
*
*
* Typical usage of TreePathHandle enclElIsCorrespondingEl:
*
* {@code
* final TreePathHandle[] tpHandle = new TreePathHandle[1];
* javaSource.runCompileControlTask(new CancellableTask() {
* public void run(CompilationController compilationController) {
* parameter.toPhase(Phase.RESOLVED);
* CompilationUnitTree cu = compilationController.getTree ();
* TreePath treePath = getInterestingTreePath (cu);
* treePathHandle[0] = TreePathHandle.create (element, compilationController);
* }
* },priority);
*
* otherJavaSource.runCompileControlTask(new CancellableTask() {
* public void run(CompilationController compilationController) {
* parameter.toPhase(Phase.RESOLVED);
* TreePath treePath = treePathHanlde[0].resolve (compilationController);
* ....
* }
* },priority);
* }
*
*
*
* @author Jan Becicka
*/
public final class TreePathHandle {
private static Logger log = Logger.getLogger(TreePathHandle.class.getName());
private final Delegate delegate;
private TreePathHandle(Delegate d) {
if (d == null) {
throw new IllegalArgumentException();
}
this.delegate = d;
}
/**
* getter for FileObject from give TreePathHandle
* @return FileObject for which was this handle created,
* or null if not available
*/
public @CheckForNull FileObject getFileObject() {
return this.delegate.getFileObject();
}
/**
* Resolves an {@link TreePath} from the {@link TreePathHandle}.
* @param compilationInfo representing the {@link javax.tools.JavaCompiler.CompilationTask}
* @return resolved subclass of {@link Element} or null if the element does not exist on
* the classpath/sourcepath of {@link javax.tools.JavaCompiler.CompilationTask}.
* @throws IllegalArgumentException when this {@link TreePathHandle} is not created for a source
* represented by the compilationInfo.
*/
public TreePath resolve (final CompilationInfo compilationInfo) throws IllegalArgumentException {
final TreePath result = this.delegate.resolve(compilationInfo);
if (result == null) {
Logger.getLogger(TreePathHandle.class.getName()).info("Cannot resolve: "+toString());
}
return result;
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof TreePathHandle)) {
return false;
}
if (delegate.getClass() != ((TreePathHandle) obj).delegate.getClass()) {
return false;
}
return delegate.equalsHandle(((TreePathHandle) obj).delegate);
}
@Override
public int hashCode() {
return delegate.hashCode();
}
/**
* Resolves an {@link Element} from the {@link TreePathHandle}.
* @param info representing the {@link javax.tools.JavaCompiler.CompilationTask}
* @return resolved subclass of {@link Element} or null if the element does not exist on
* the classpath/sourcepath of {@link javax.tools.JavaCompiler.CompilationTask}.
*/
public Element resolveElement(final CompilationInfo info) {
Parameters.notNull("info", info);
final Element result = this.delegate.resolveElement(info);
if (result == null) {
Logger.getLogger(TreePathHandle.class.getName()).info("Cannot resolve: "+toString());
}
return result;
}
/**
* returns {@link ElementHandle} corresponding to this {@link TreePathHandle}
* @return {@link ElementHandle} or null if this {@link TreePathHandle} does
* not represent any {@link Element}
* @since 0.93
*/
@CheckForNull
public ElementHandle getElementHandle() {
return this.delegate.getElementHandle();
}
/**
* Returns the {@link com.sun.source.tree.Tree.Kind} of this TreePathHandle,
* it returns the kind of the {@link com.sun.source.tree.Tree} from which the handle
* was created.
*
* @return {@link com.sun.source.tree.Tree.Kind}
*/
public Tree.Kind getKind() {
return this.delegate.getKind();
}
/**
* Factory method for creating {@link TreePathHandle}.
*
* @param treePath for which the {@link TreePathHandle} should be created.
* @param info
* @return a new {@link TreePathHandle}
* @throws java.lang.IllegalArgumentException if arguments are not supported
*/
public static TreePathHandle create(final TreePath treePath, CompilationInfo info) throws IllegalArgumentException {
Parameters.notNull("treePath", treePath);
Parameters.notNull("info", info);
FileObject file;
try {
URL url = treePath.getCompilationUnit().getSourceFile().toUri().toURL();
file = URLMapper.findFileObject(url);
if (file == null) {
//#155161:
log.log(Level.INFO, "There is no fileobject for source: " + url + ". Was this file removed?");
return new TreePathHandle(new EmptyDelegate(url, treePath.getLeaf().getKind()));
}
} catch (MalformedURLException e) {
throw (RuntimeException) new RuntimeException().initCause(e);
}
int position = ((JCTree) treePath.getLeaf()).pos;
if (position == (-1)) {
int index = listChildren(treePath.getParentPath().getLeaf()).indexOf(treePath.getLeaf());
assert index != (-1);
return new TreePathHandle(new CountingDelegate(TreePathHandle.create(treePath.getParentPath(), info), index, treePath.getLeaf().getKind()));
}
Position pos = createPositionRef(file, position, Bias.Forward);
TreePath current = treePath;
Element correspondingElement = info.getTrees().getElement(current);
Element element = null;
boolean child = false;
while (current != null) {
if ( TreeUtilities.CLASS_TREE_KINDS.contains(current.getLeaf().getKind())
|| current.getLeaf().getKind() == Kind.VARIABLE
|| current.getLeaf().getKind() == Kind.METHOD) {
Element loc = info.getTrees().getElement(current);
if (isSupported(loc)) {
if (child && info.getTreeUtilities().isSynthetic(info.getCompilationUnit(), current.getLeaf())) {
// we do not support handles to statements in synth members
throw new IllegalArgumentException("Handle for synthetic path");
}
element = loc;
break;
}
}
child = true;
current = current.getParentPath();
}
ElementHandle elementHandle = null;
//Do not create ElementHandle for OTHER (,).
if (element != null && element.getKind() != ElementKind.OTHER) {
elementHandle = createHandle(element);
}
ElementHandle correspondingElementHandle = null;
if (correspondingElement != null && isSupported(correspondingElement)) {
correspondingElementHandle = createHandle(correspondingElement);
}
return new TreePathHandle(new TreeDelegate(pos, new TreeDelegate.KindPath(treePath), file, elementHandle, correspondingElementHandle));
}
/**
* Factory method for creating {@link TreePathHandle}.
*
* @param element for which the {@link TreePathHandle} should be created.
* @param info
* @return a new {@link TreePathHandle}
* @throws java.lang.IllegalArgumentException if arguments are not supported
*/
public static TreePathHandle create(Element element, CompilationInfo info) throws IllegalArgumentException {
URL u = null;
String qualName = null;
Symbol.ClassSymbol clsSym;
if (element instanceof Symbol.ClassSymbol) {
clsSym = (Symbol.ClassSymbol) element;
} else {
clsSym = (Symbol.ClassSymbol) SourceUtils.getEnclosingTypeElement(element);
}
if (clsSym != null && (clsSym.classfile != null || clsSym.sourcefile != null)) {
try {
if ( clsSym.sourcefile != null
&& clsSym.sourcefile.getKind() == JavaFileObject.Kind.SOURCE
&& clsSym.sourcefile.toUri().isAbsolute()) {
u = clsSym.sourcefile.toUri().toURL();
} else if (clsSym.classfile != null) {
u = clsSym.classfile.toUri().toURL();
}
} catch (MalformedURLException ex) {
Exceptions.printStackTrace(ex);
}
qualName = clsSym.getEnclosingElement().getQualifiedName().toString();
}
return new TreePathHandle(new ElementDelegate(ElementHandle.create(element), u, qualName, info.getClasspathInfo()));
}
@CheckForNull
private static ElementHandle createHandle (@NonNull final T element) {
try {
return ElementHandle.create(element);
} catch (IllegalArgumentException e) {
log.log(
Level.INFO,
"Unresolvable element: {0}, reason: {1}", //NOI18N
new Object[]{
element,
e.getMessage()
});
return null;
}
}
private static boolean isSupported(Element el) {
if (el == null) {
return false;
}
switch (el.getKind()) {
case PACKAGE:
case CLASS:
case INTERFACE:
case ENUM:
case METHOD:
case CONSTRUCTOR:
case INSTANCE_INIT:
case STATIC_INIT:
case FIELD:
case ANNOTATION_TYPE:
case ENUM_CONSTANT:
case RECORD:
//TODO: record component
return true;
default:
return false;
}
}
private static Position createPositionRef(FileObject file, int position, Position.Bias bias) {
try {
PositionRefProvider prp = PositionRefProvider.get(file);
Position positionRef = prp != null ? prp.createPosition(position, bias) : null;
if (positionRef != null) {
return positionRef;
}
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
throw new IllegalStateException("Cannot create PositionRef for file " + file.getPath() + ". CloneableEditorSupport not found");
}
/**Constructs a TreePathHandle that corresponds to the given ElementHandle.
*
* @param handle an ElementHandle for which the TreePathHandle should be constructed
* @param cpInfo a classpath which is supposed to contain the element described by given the ElementHandle
* @return a newly constructed TreePathHandle
* @since 0.79
*/
public static @NonNull TreePathHandle from(@NonNull ElementHandle handle, @NonNull ClasspathInfo cpInfo) {
Parameters.notNull("handle", handle);
Parameters.notNull("cpInfo", cpInfo);
return new TreePathHandle(new ElementDelegate(handle, null, null, cpInfo));
}
@Override
public String toString() {
return "TreePathHandle[delegate:"+delegate+"]";
}
static interface Delegate {
public FileObject getFileObject();
public TreePath resolve(final CompilationInfo compilationInfo) throws IllegalArgumentException;
public boolean equalsHandle(Delegate obj);
public int hashCode();
public Element resolveElement(final CompilationInfo info);
public Tree.Kind getKind();
public ElementHandle getElementHandle();
}
private static final class TreeDelegate implements Delegate {
private final Position position;
private final KindPath kindPath;
private final FileObject file;
private final ElementHandle enclosingElement;
private final ElementHandle correspondingEl;
private final Tree.Kind kind;
private TreeDelegate(Position position, KindPath kindPath, FileObject file, ElementHandle element, ElementHandle correspondingEl) {
this.kindPath = kindPath;
this.position = position;
this.file = file;
this.enclosingElement = element;
this.correspondingEl = correspondingEl;
if (kindPath != null) {
this.kind = kindPath.kindPath.get(0);
} else {
if (correspondingEl != null) {
ElementKind k = correspondingEl.getKind();
switch (k) {
case ANNOTATION_TYPE: kind = Tree.Kind.ANNOTATION_TYPE; break;
case CLASS: kind = Tree.Kind.CLASS; break;
case ENUM: kind = Tree.Kind.ENUM; break;
case INTERFACE: kind = Tree.Kind.INTERFACE; break;
case RECORD: kind = Tree.Kind.RECORD; break;
case ENUM_CONSTANT: case FIELD: kind = Tree.Kind.VARIABLE; break;
case METHOD: case CONSTRUCTOR: kind = Tree.Kind.METHOD; break;
default: kind = null; break;
}
} else {
kind = null;
}
}
}
/**
* getter for FileObject from give TreePathHandle
* @return FileObject for which was this handle created
*/
public FileObject getFileObject() {
return file;
}
/**
* Resolves an {@link TreePath} from the {@link TreePathHandle}.
* @param compilationInfo representing the {@link javax.tools.JavaCompiler.CompilationTask}
* @return resolved subclass of {@link Element} or null if the element does not exist on
* the classpath/sourcepath of {@link javax.tools.JavaCompiler.CompilationTask}.
* @throws IllegalArgumentException when this {@link TreePathHandle} is not created for a source
* represented by the compilationInfo.
*/
public TreePath resolve(final CompilationInfo compilationInfo) throws IllegalArgumentException {
assert compilationInfo != null;
if (!compilationInfo.getFileObject().equals(getFileObject())) {
StringBuilder debug = new StringBuilder();
FileObject mine = getFileObject();
FileObject remote = compilationInfo.getFileObject();
debug.append("TreePathHandle [" + FileUtil.getFileDisplayName(mine) + "] was not created from " + FileUtil.getFileDisplayName(remote));
debug.append("\n");
debug.append("mine: id=").append(mine).append(", url=").append(mine.toURL().toExternalForm());
debug.append("\n");
debug.append("remote: id=").append(remote).append(", url=").append(remote.toURL().toExternalForm());
throw new IllegalArgumentException(debug.toString());
}
Element element = enclosingElement != null ? enclosingElement.resolve(compilationInfo) : null;
TreePath tp = null;
if (element != null) {
TreePath startPath = compilationInfo.getTrees().getPath(element);
if (startPath == null) {
Logger.getLogger(TreePathHandle.class.getName()).fine("compilationInfo.getTrees().getPath(element) returned null for element %s " + element + "(" + file.getPath() + ")"); //NOI18N
} else {
tp = compilationInfo.getTreeUtilities().pathFor(startPath, position.getOffset() + 1);
}
}
if (tp != null && new KindPath(tp).equals(kindPath)) {
return tp;
}
int pos = position.getOffset();
tp = resolvePathForPos(compilationInfo, pos + 1);
if (tp != null) return tp;
tp = resolvePathForPos(compilationInfo, pos);
return tp;
}
private TreePath resolvePathForPos(final CompilationInfo compilationInfo, int pos) {
TreePath tp = compilationInfo.getTreeUtilities().pathFor(pos);
while (tp != null) {
KindPath kindPath1 = new KindPath(tp);
kindPath.getList().remove(Tree.Kind.ERRONEOUS);
if (kindPath1.equals(kindPath)) {
return tp;
}
tp = tp.getParentPath();
}
return null;
}
public boolean equalsHandle(Delegate obj) {
TreeDelegate other = (TreeDelegate) obj;
if (this.correspondingEl != other.correspondingEl && (this.correspondingEl == null || !this.correspondingEl.equals(other.correspondingEl))) {
return false;
}
if (this.enclosingElement != other.enclosingElement && (this.enclosingElement == null || !this.enclosingElement.equals(other.enclosingElement))) {
return false;
}
if (this.position == null && other.position == null) {
return true;
}
// TODO: swap file and position test ?
if (this.position.getOffset() != other.position.getOffset()) {
return false;
}
if (this.file != other.file && (this.file == null || !this.file.equals(other.file))) {
return false;
}
return true;
}
@Override
public int hashCode() {
if (this.position == null) {
return 553 + enclosingElement.hashCode();
}
int hash = 7;
hash = 79 * hash + this.position.getOffset();
hash = 79 * hash + (this.file != null ? this.file.hashCode() : 0);
return hash;
}
/**
* Resolves an {@link Element} from the {@link TreePathHandle}.
* @param compilationInfo representing the {@link javax.tools.JavaCompiler.CompilationTask}
* @return resolved subclass of {@link Element} or null if the element does not exist on
* the classpath/sourcepath of {@link javax.tools.JavaCompiler.CompilationTask}.
*/
public Element resolveElement(final CompilationInfo info) {
if (correspondingEl != null) {
return correspondingEl.resolve(info);
}
if ((this.file != null && info.getFileObject() != null) && info.getFileObject().equals(this.file) && this.position != null) {
TreePath tp = this.resolve(info);
if (tp == null) {
return null;
}
Element el = info.getTrees().getElement(tp);
if (el == null) {
Logger.getLogger(TreePathHandle.class.toString()).fine("info.getTrees().getElement(tp) returned null for " + tp);
Element staticallyImported = getStaticallyImportedElement(tp, info);
if (staticallyImported!=null) {
return staticallyImported;
}
} else {
return el;
}
}
return null;
}
/**
* special handling of static imports
* see #196685
*
*/
private Element getStaticallyImportedElement(TreePath treePath, CompilationInfo info) {
if (treePath.getLeaf().getKind() != Tree.Kind.MEMBER_SELECT)
return null;
MemberSelectTree memberSelectTree = (MemberSelectTree) treePath.getLeaf();
TreePath tp = treePath;
while (tp!=null) {
Kind treeKind = tp.getLeaf().getKind();
if (treeKind == Tree.Kind.IMPORT) {
if (!((ImportTree) tp.getLeaf()).isStatic()) {
return null;
}
break;
} else if (treeKind == Tree.Kind.MEMBER_SELECT || treeKind == Tree.Kind.IDENTIFIER) {
tp = tp.getParentPath();
continue;
}
return null;
}
Name simpleName = memberSelectTree.getIdentifier();
if (simpleName == null) {
return null;
}
TreePath declPath = new TreePath(new TreePath(treePath, memberSelectTree), memberSelectTree.getExpression());
TypeElement decl = (TypeElement) info.getTrees().getElement(declPath);
if (decl==null) {
return null;
}
for (Element e : info.getElements().getAllMembers((TypeElement) decl)) {
if (!e.getModifiers().contains(Modifier.STATIC)) {
continue;
}
if (!e.getSimpleName().equals(simpleName)) {
continue;
}
return e;
}
return null;
}
/**
* Returns the {@link Tree.Kind} of this TreePathHandle,
* it returns the kind of the {@link Tree} from which the handle
* was created.
*
* @return {@link Tree.Kind}
*/
public Tree.Kind getKind() {
return kind;
}
@Override
public String toString() {
return this.getClass().getSimpleName()+"[kind:" + kind + ", enclosingElement:" + enclosingElement +", file:" + file + "]";
}
@Override
public ElementHandle getElementHandle() {
return correspondingEl;
}
static class KindPath {
private ArrayList kindPath = new ArrayList<>();
KindPath(TreePath treePath) {
while (treePath != null) {
kindPath.add(treePath.getLeaf().getKind());
treePath = treePath.getParentPath();
}
}
public int hashCode() {
return kindPath.hashCode();
}
public boolean equals(Object object) {
if (object instanceof KindPath) {
return kindPath.equals(((KindPath) object).kindPath);
}
return false;
}
public ArrayList getList() {
return kindPath;
}
}
}
private static final class ElementDelegate implements Delegate {
private final ElementHandle el;
private final URL source;
private final String qualName;
private final ClasspathInfo cpInfo;
public ElementDelegate(ElementHandle el, URL source, String qualName, ClasspathInfo cpInfo) {
this.el = el;
this.source = source;
this.qualName = qualName;
this.cpInfo = cpInfo;
}
public FileObject getFileObject() {
//source does not exist
FileObject file = SourceUtils.getFile(el, cpInfo);
//tzezula: Very strange and probably useless
if (file == null && source != null) {
FileObject fo = URLMapper.findFileObject(source);
if (fo == null) {
log.log(Level.INFO, "There is no fileobject for source: " +source + ". Was this file removed?");
return file;
}
file = fo;
if (fo.getNameExt().endsWith(FileObjects.SIG)) {
//NOI18N
//conversion sig -> class
String pkgName = FileObjects.convertPackage2Folder(qualName);
StringTokenizer tk = new StringTokenizer(pkgName, "/"); //NOI18N
for (int i = 0; fo != null && i <= tk.countTokens(); i++) {
fo = fo.getParent();
}
if (fo != null) {
URL url = fo.toURL();
URL sourceRoot = null;//XXX: Index.getSourceRootForClassFolder(url);
if (sourceRoot != null) {
FileObject root = URLMapper.findFileObject(sourceRoot);
String resourceName = FileUtil.getRelativePath(fo, URLMapper.findFileObject(source));
file = root.getFileObject(resourceName.replace('.'+FileObjects.SIG, '.'+FileObjects.CLASS)); //NOI18N
} else {
Logger.getLogger(TreePathHandle.class.getName()).fine("Index.getSourceRootForClassFolder(url) returned null for url=" + url); //NOI18N
}
}
}
}
return file;
}
public TreePath resolve(CompilationInfo compilationInfo) throws IllegalArgumentException {
Element e = resolveElement(compilationInfo);
if (e == null) {
return null;
}
return compilationInfo.getTrees().getPath(e);
}
public Element resolveElement(CompilationInfo info) {
return el.resolve(info);
}
public Kind getKind() {
switch (el.getKind()) {
case PACKAGE:
return Kind.COMPILATION_UNIT;
case ENUM:
case CLASS:
case ANNOTATION_TYPE:
case INTERFACE:
return Kind.CLASS;
case ENUM_CONSTANT:
case FIELD:
case PARAMETER:
case LOCAL_VARIABLE:
case RESOURCE_VARIABLE:
case EXCEPTION_PARAMETER:
return Kind.VARIABLE;
case METHOD:
case CONSTRUCTOR:
return Kind.METHOD;
case STATIC_INIT:
case INSTANCE_INIT:
return Kind.BLOCK;
case TYPE_PARAMETER:
return Kind.TYPE_PARAMETER;
case OTHER:
default:
return Kind.OTHER;
}
}
public boolean equalsHandle(Delegate obj) {
ElementDelegate other = (ElementDelegate) obj;
return el.signatureEquals(other.el) && cpInfo.equals(other.cpInfo);
}
@Override
public int hashCode() {
return Arrays.hashCode(el.getSignature());
}
@Override
public String toString() {
return this.getClass().getSimpleName()+"[elementHandle:"+el+", url:"+source+"]";
}
@Override
public ElementHandle getElementHandle() {
return el;
}
}
private static final class EmptyDelegate implements Delegate {
private final URL source;
private final Tree.Kind kind;
public EmptyDelegate(URL source, Kind kind) {
this.source = source;
this.kind = kind;
}
public FileObject getFileObject() {
return URLMapper.findFileObject(source);
}
public TreePath resolve(CompilationInfo compilationInfo) throws IllegalArgumentException {
return null;
}
public boolean equalsHandle(Delegate obj) {
return this == obj;
}
public Element resolveElement(CompilationInfo info) {
return null;
}
public Kind getKind() {
return kind;
}
@Override
public ElementHandle getElementHandle() {
return null;
}
}
private static final class CountingDelegate implements Delegate {
private final TreePathHandle parent;
private final int index;
private final Tree.Kind kind;
public CountingDelegate(TreePathHandle parent, int index, Kind kind) {
this.parent = parent;
this.index = index;
this.kind = kind;
}
public FileObject getFileObject() {
return parent.getFileObject();
}
public TreePath resolve(CompilationInfo compilationInfo) throws IllegalArgumentException {
TreePath p = parent.resolve(compilationInfo);
if (p == null) return null;
List children = listChildren(p.getLeaf());
if (index < children.size()) {
Tree t = children.get(index);
if (t.getKind() == kind) {
return new TreePath(p, t);
}
}
return null;
}
public boolean equalsHandle(Delegate obj) {
return this == obj;//XXX
}
public Element resolveElement(CompilationInfo info) {
return parent.resolveElement(info);
}
public Kind getKind() {
return kind;
}
@Override
public ElementHandle getElementHandle() {
return parent.getElementHandle();
}
}
private static List listChildren(@NonNull Tree t) {
final List result = new LinkedList();
t.accept(new ErrorAwareTreeScanner() {
@Override
public Void scan(Tree node, Void p) {
result.add(node);
return null;
}
}, null);
return result;
}
}