com.sun.source.tree.Tree.Kind Java Examples

@Hint(displayName = "#DN_org.netbeans.modules.java.hints.ClassStructure.multipleTopLevelClassesInFile", description = "#DESC_org.netbeans.modules.java.hints.ClassStructure.multipleTopLevelClassesInFile", category = "class_structure", enabled = false, suppressWarnings = {"MultipleTopLevelClassesInFile"}, options=Options.QUERY) //NOI18N
@TriggerTreeKind({Tree.Kind.ANNOTATION_TYPE, Tree.Kind.CLASS, Tree.Kind.ENUM, Tree.Kind.INTERFACE})
public static ErrorDescription multipleTopLevelClassesInFile(HintContext context) {
    final ClassTree cls = (ClassTree) context.getPath().getLeaf();
    final Tree parent = context.getPath().getParentPath().getLeaf();
    if (parent.getKind() == Kind.COMPILATION_UNIT) {
        final List<? extends Tree> typeDecls = new ArrayList<Tree>(((CompilationUnitTree) parent).getTypeDecls());
        for (Iterator<? extends Tree> it = typeDecls.iterator(); it.hasNext();) {
            if (it.next().getKind() == Kind.EMPTY_STATEMENT) it.remove();
        }
        if (typeDecls.size() > 1 && typeDecls.get(0) != cls) {
            return ErrorDescriptionFactory.forName(context, cls, NbBundle.getMessage(ClassStructure.class, "MSG_MultipleTopLevelClassesInFile")); //NOI18N
        }
    }
    return null;
}
 

@Override
   public List<Fix> run(CompilationInfo compilationInfo, String diagnosticKey, int offset, TreePath treePath, Data<Void> data) {
       EnumSet<Kind> supportedKinds = EnumSet.of(Kind.ANNOTATION_TYPE, Kind.CLASS, Kind.ENUM, Kind.VARIABLE, Kind.INTERFACE, Kind.METHOD);
       boolean isSupported = (supportedKinds.contains(treePath.getLeaf().getKind()));
if (!isSupported) {
    return null;
}
       String invalidMod = getInvalidModifier(compilationInfo, treePath, CODES);
       if (null==invalidMod)
       {
           return null;
       }

       //support multiple invalid modifiers
       Collection<Modifier> modss=convertToModifiers(invalidMod.split(","));
       TreePath modifierTreePath = TreePath.getPath(treePath, getModifierTree(treePath));
       Fix removeModifiersFix = FixFactory.removeModifiersFix(compilationInfo, modifierTreePath, new HashSet<>(modss), NbBundle.getMessage(RemoveInvalidModifier.class, "FIX_RemoveInvalidModifier", invalidMod, modss.size()));
       return Arrays.asList(removeModifiersFix);
   }
 

@Hint(id="org.netbeans.modules.java.hints.suggestions.InvertIf", displayName = "#DN_InvertIf", description = "#DESC_InvertIf", category = "suggestions", hintKind= Hint.Kind.ACTION)
@UseOptions(SHOW_ELSE_MISSING)
@TriggerPattern(value = "if ($cond) $then; else $else$;")
@Messages({"ERR_InvertIf=Invert If",
           "FIX_InvertIf=Invert If"})
public static ErrorDescription computeWarning(HintContext ctx) {
    TreePath cond = ctx.getVariables().get("$cond");
    long conditionEnd = ctx.getInfo().getTrees().getSourcePositions().getEndPosition(cond.getCompilationUnit(), cond.getParentPath().getLeaf());
    if (ctx.getCaretLocation() > conditionEnd) return null;

    // parenthesized, then if
    TreePath ifPath = cond.getParentPath().getParentPath();
    if (ifPath.getLeaf().getKind() != Tree.Kind.IF) {
        return null;
    }
    IfTree iv = (IfTree)ifPath.getLeaf();
    if (iv.getElseStatement() == null && 
        !ctx.getPreferences().getBoolean(SHOW_ELSE_MISSING, SHOW_ELSE_MISSING_DEFAULT)) {
        return null;
    }
    return ErrorDescriptionFactory.forName(ctx, ctx.getPath(), Bundle.ERR_InvertIf(), new FixImpl(ctx.getInfo(), ctx.getPath()).toEditorFix());
}
 

public void testPartialModifiers() throws Exception {
    prepareTest("test/Test.java", "package test; public class Test{}");

    Scope s = Utilities.constructScope(info, Collections.<String, TypeMirror>emptyMap());
    Tree result = Utilities.parseAndAttribute(info, "$mods$ @Deprecated public $type $name;", s);

    assertTrue(result.getKind().name(), result.getKind() == Kind.VARIABLE);

    ModifiersTree mods = ((VariableTree) result).getModifiers();
    String golden1 = "$mods$,@Deprecated(), [public]";
    String golden2 = "$mods$,@Deprecated, [public]";
    String actual = mods.getAnnotations().toString() + ", " + mods.getFlags().toString();
    
    if (!golden1.equals(actual) && !golden2.equals(actual))
        assertEquals(golden1, actual);
}
 

@Override
public Description matchExpressionStatement(ExpressionStatementTree tree, VisitorState state) {
  if (overLaps(tree, state)) {
    return Description.NO_MATCH;
  }

  if (tree.getExpression().getKind().equals(Kind.METHOD_INVOCATION)) {
    MethodInvocationTree mit = (MethodInvocationTree) tree.getExpression();
    API api = getXPAPI(mit);
    if (api.equals(API.DELETE_METHOD)) {
      Description.Builder builder = buildDescription(tree);
      SuggestedFix.Builder fixBuilder = SuggestedFix.builder();
      fixBuilder.delete(tree);
      decrementAllSymbolUsages(tree, state, fixBuilder);
      builder.addFix(fixBuilder.build());
      endPos = state.getEndPosition(tree);
      return builder.build();
    }
  }
  return Description.NO_MATCH;
}
 

public Kind getKindLiteral() {
    switch (this) {
    case INT:
        return Kind.INT_LITERAL;
    case LONG:
        return Kind.LONG_LITERAL;
    case FLOAT:
        return Kind.FLOAT_LITERAL;
    case DOUBLE:
        return Kind.DOUBLE_LITERAL;
    case BOOLEAN:
        return Kind.BOOLEAN_LITERAL;
    case CHAR:
        return Kind.CHAR_LITERAL;
    case CLASS:
        return Kind.STRING_LITERAL;
    case BOT:
        return Kind.NULL_LITERAL;
    default:
        throw new AssertionError("unknown literal kind " + this);
    }
}
 

public Kind getKindLiteral() {
    switch (this) {
    case INT:
        return Kind.INT_LITERAL;
    case LONG:
        return Kind.LONG_LITERAL;
    case FLOAT:
        return Kind.FLOAT_LITERAL;
    case DOUBLE:
        return Kind.DOUBLE_LITERAL;
    case BOOLEAN:
        return Kind.BOOLEAN_LITERAL;
    case CHAR:
        return Kind.CHAR_LITERAL;
    case CLASS:
        return Kind.STRING_LITERAL;
    case BOT:
        return Kind.NULL_LITERAL;
    default:
        throw new AssertionError("unknown literal kind " + this);
    }
}
 

@TriggerTreeKind(Tree.Kind.METHOD)
public static ErrorDescription hint(final HintContext ctx) {
    assert ctx != null;
    final TreePath tp = ctx.getPath();
    final MethodTree method = (MethodTree) tp.getLeaf();
    if (method.getBody() == null) return null;
    if (!Util.isFinalize(method)) {
        return null;
    }
    final FindSuper scanner = new FindSuper();
    scanner.scan(method, null);
    if (scanner.found) {
        return null;
    }
    return ErrorDescriptionFactory.forName(ctx, method, NbBundle.getMessage(FinalizeDoesNotCallSuper.class, "TXT_FinalizeDoesNotCallSuper"),
            new FixImpl(TreePathHandle.create(ctx.getPath(), ctx.getInfo())).toEditorFix());
}
 

@Override
protected void performRewrite(JavaFix.TransformationContext ctx) throws Exception {
    Tree t = ctx.getPath().getLeaf();
    if (t.getKind() != Tree.Kind.METHOD_INVOCATION) {
        return;
    }
    MethodInvocationTree mi = (MethodInvocationTree)t;
    if (mi.getMethodSelect().getKind() != Tree.Kind.MEMBER_SELECT) {
        return;
    }
    MemberSelectTree selector = ((MemberSelectTree)mi.getMethodSelect());
    TreeMaker maker = ctx.getWorkingCopy().getTreeMaker();
    ExpressionTree ms = maker.MemberSelect(maker.QualIdent("java.util.Arrays"), deep ? "deepHashCode" : "hashCode"); // NOI18N
    Tree nue = maker.MethodInvocation(
                    Collections.<ExpressionTree>emptyList(), 
                    ms, 
                    Collections.singletonList(selector.getExpression())
    );
    ctx.getWorkingCopy().rewrite(t, nue);
}
 

@Hint(displayName = "#DN_Imports_EXCLUDED", description = "#DESC_Imports_EXCLUDED", category="imports", id="Imports_EXCLUDED", options=Options.QUERY)
@TriggerTreeKind(Kind.IMPORT)
public static ErrorDescription exlucded(HintContext ctx) throws IOException {
    ImportTree it = (ImportTree) ctx.getPath().getLeaf();

    if (it.isStatic() || !(it.getQualifiedIdentifier() instanceof MemberSelectTree)) {
        return null; // XXX
    }

    MemberSelectTree ms = (MemberSelectTree) it.getQualifiedIdentifier();
    String pkg = ms.getExpression().toString();
    String klass = ms.getIdentifier().toString();
    String exp = pkg + "." + (!klass.equals("*") ? klass : ""); //NOI18N
    if (Utilities.isExcluded(exp)) {
        return ErrorDescriptionFactory.forTree(ctx, ctx.getPath(), NbBundle.getMessage(Imports.class, "DN_Imports_EXCLUDED"));
    }

    return null;
}
 

protected final AnnotationTree rewriteChildren(AnnotationTree tree) {
       Tree annotationType = translate(tree.getAnnotationType());
List<? extends ExpressionTree> args = translate(tree.getArguments());
if (annotationType!=tree.getAnnotationType() || !args.equals(tree.getArguments())) {
           if (args != tree.getArguments())
               args = optimize(args);
    AnnotationTree n = tree.getKind() == Kind.ANNOTATION
                   ? make.Annotation(annotationType, args)
                   : make.TypeAnnotation(annotationType, args);
           model.setType(n, model.getType(tree));
    copyCommentTo(tree,n);
    tree = n;
           if (tree.getArguments().size() != args.size())
               model.setPos(tree, NOPOS);
           else
               copyPosTo(tree,n);
}
return tree;
   }
 

@Test
public void forLoopNoCondition() {
  compile(
      "class ForLoopExample {",
      "  public void example(int from, int to) {",
      "     for (int i = from; ; i++) {",
      "     }",
      "  }",
      "}");
  assertEquals(
      BlockTemplate.create(
          ImmutableMap.of(
              "from", UPrimitiveType.INT,
              "to", UPrimitiveType.INT),
          UForLoop.create(
              ImmutableList.of(
                  UVariableDecl.create("i", UPrimitiveTypeTree.INT, UFreeIdent.create("from"))), 
              null, 
              ImmutableList.of(UExpressionStatement.create(
                  UUnary.create(Kind.POSTFIX_INCREMENT, ULocalVarIdent.create("i")))), 
              UBlock.create())),
      UTemplater.createTemplate(context, getMethodDeclaration("example")));
}
 

private static ErrorDescription checkStatement(HintContext ctx, String dnKey, StatementTree statement, TreePath tp)  {
    if ( statement != null &&
         statement.getKind() != Tree.Kind.EMPTY_STATEMENT &&
         statement.getKind() != Tree.Kind.BLOCK &&
         statement.getKind() != Tree.Kind.TRY &&
         statement.getKind() != Tree.Kind.SYNCHRONIZED &&
         statement.getKind() != Tree.Kind.SWITCH &&
         statement.getKind() != Tree.Kind.ERRONEOUS &&
         !isErroneousExpression( statement )) {
        return ErrorDescriptionFactory.forTree(
                    ctx,
                    statement,
                    NbBundle.getMessage(Braces.class, dnKey),
                    new BracesFix(ctx.getInfo().getFileObject(), TreePathHandle.create(tp, ctx.getInfo())).toEditorFix());

    }
    return null;
}
 

private Pair<ASTPath, InnerTypeLocation> splitNewArrayType(ASTPath astPath) {
    ASTPath outerPath = astPath;
    InnerTypeLocation loc = null;
    int last = astPath.size() - 1;

    if (last > 0) {
        ASTPath.ASTEntry entry = astPath.get(last);
        if (entry.getTreeKind() == Kind.NEW_ARRAY && entry.childSelectorIs(ASTPath.TYPE)) {
            int a = entry.getArgument();
            if (a > 0) {
                outerPath = astPath.getParentPath().extend(new ASTPath.ASTEntry(Kind.NEW_ARRAY, ASTPath.TYPE, 0));
                loc = new InnerTypeLocation(TypeAnnotationPosition.getTypePathFromBinary(Collections.nCopies(2 * a, 0)));
            }
        }
    }
    return Pair.of(outerPath, loc);
}
 

@Override
public List<Fix> run(CompilationInfo info, String diagnosticKey, int offset, TreePath treePath, Data<Void> data) {
    if (treePath.getLeaf().getKind() != Kind.ARRAY_ACCESS) {
        return Collections.emptyList();
    }
    ArrayAccessTree aa = (ArrayAccessTree) treePath.getLeaf();
    TypeMirror onType = info.getTrees().getTypeMirror(new TreePath(treePath, aa.getExpression()));
    boolean list = isSubType(info, onType, "java.util.List");
    boolean map = isSubType(info, onType, "java.util.Map");
    
    if (list || map) {
        Kind parentKind = treePath.getParentPath().getLeaf().getKind();
        if (CANNOT_HANDLE_PARENTS.contains(parentKind)) return null;
        return Collections.singletonList(new ConvertFromArrayAccess(info, treePath, map, parentKind == Kind.ASSIGNMENT).toEditorFix());
    }
    
    return Collections.emptyList();
}
 

public static List<AnnotationTree> findArrayValue(AnnotationTree at, String name) {
    ExpressionTree fixesArray = findValue(at, name);
    List<AnnotationTree> fixes = new LinkedList<AnnotationTree>();

    if (fixesArray != null && fixesArray.getKind() == Kind.NEW_ARRAY) {
        NewArrayTree trees = (NewArrayTree) fixesArray;

        for (ExpressionTree fix : trees.getInitializers()) {
            if (fix.getKind() == Kind.ANNOTATION) {
                fixes.add((AnnotationTree) fix);
            }
        }
    }

    if (fixesArray != null && fixesArray.getKind() == Kind.ANNOTATION) {
        fixes.add((AnnotationTree) fixesArray);
    }
    
    return fixes;
}
 

static void prepareTypeVars(TreePath method, CompilationInfo info, Map<TypeMirror, TreePathHandle> typeVar2Def, List<TreePathHandle> typeVars) throws IllegalArgumentException {
    if (method.getLeaf().getKind() == Kind.METHOD) {
        MethodTree mt = (MethodTree) method.getLeaf();

        for (TypeParameterTree tv : mt.getTypeParameters()) {
            TreePath def = new TreePath(method, tv);
            TypeMirror type = info.getTrees().getTypeMirror(def);

            if (type != null && type.getKind() == TypeKind.TYPEVAR) {
                TreePathHandle tph = TreePathHandle.create(def, info);

                typeVar2Def.put(type, tph);
                typeVars.add(tph);
            }
        }
    }
}
 

private static String[] correspondingGSNames(Tree member) {
    if (isSetter(member)) {
        String name = name(member);
        VariableTree param = ((MethodTree)member).getParameters().get(0);
        if (param.getType().getKind() == Tree.Kind.PRIMITIVE_TYPE && ((PrimitiveTypeTree)param.getType()).getPrimitiveTypeKind() == TypeKind.BOOLEAN) {
            return new String[] {'g' + name.substring(1), "is" + name.substring(3)};
        }
        return new String[] {'g' + name.substring(1)};
    }
    if (isGetter(member)) {
        return new String[] {'s' + name(member).substring(1)};
    }
    if (isBooleanGetter(member)) {
        return new String[] {"set" + name(member).substring(2)}; //NOI18N
    }
    return null;
}
 

@Override
protected void performRewrite(TransformationContext ctx) {
    WorkingCopy wc = ctx.getWorkingCopy();
    TreePath path = ctx.getPath();
    TypeCastTree tct = (TypeCastTree) path.getLeaf();
    ExpressionTree expression = tct.getExpression();

    while (expression.getKind() == Kind.PARENTHESIZED
           && !JavaFixUtilities.requiresParenthesis(((ParenthesizedTree) expression).getExpression(), tct, path.getParentPath().getLeaf())) {
        expression = ((ParenthesizedTree) expression).getExpression();
    }

    while (path.getParentPath().getLeaf().getKind() == Kind.PARENTHESIZED
           && !JavaFixUtilities.requiresParenthesis(expression, path.getLeaf(), path.getParentPath().getParentPath().getLeaf())) {
        path = path.getParentPath();
    }

    wc.rewrite(path.getLeaf(), expression);
}
 

private static String className(TreePath path) {
    ClassTree ct = (ClassTree) path.getLeaf();
    
    if (path.getParentPath().getLeaf().getKind() == Kind.NEW_CLASS) {
        NewClassTree nct = (NewClassTree) path.getParentPath().getLeaf();
        
        if (nct.getClassBody() == ct) {
            return simpleName(nct.getIdentifier());
        }
    } else if (path.getParentPath().getLeaf() == path.getCompilationUnit()) {
        ExpressionTree pkg = path.getCompilationUnit().getPackageName();
        String pkgName = pkg != null ? pkg.toString() : null;
        if (pkgName != null && !pkgName.contentEquals(ERR_NAME)) {
            return pkgName + '.' + ct.getSimpleName().toString();
        }
    }
    
    return ct.getSimpleName().toString();
}
 

@TriggerTreeKind(Kind.METHOD_INVOCATION)
public static ErrorDescription computeTreeKind(HintContext ctx) {
    MethodInvocationTree mit = (MethodInvocationTree) ctx.getPath().getLeaf();

    if (!mit.getArguments().isEmpty() || !mit.getTypeArguments().isEmpty()) {
        return null;
    }

    CompilationInfo info = ctx.getInfo();
    Element e = info.getTrees().getElement(new TreePath(ctx.getPath(), mit.getMethodSelect()));

    if (e == null || e.getKind() != ElementKind.METHOD) {
        return null;
    }

    if (e.getSimpleName().contentEquals("toURL") && info.getElementUtilities().enclosingTypeElement(e).getQualifiedName().contentEquals("java.io.File")) {
        ErrorDescription w = ErrorDescriptionFactory.forName(ctx, mit, "Use of java.io.File.toURL()");

        return w;
    }

    return null;
}
 

public Kind getKindLiteral() {
    switch (this) {
    case INT:
        return Kind.INT_LITERAL;
    case LONG:
        return Kind.LONG_LITERAL;
    case FLOAT:
        return Kind.FLOAT_LITERAL;
    case DOUBLE:
        return Kind.DOUBLE_LITERAL;
    case BOOLEAN:
        return Kind.BOOLEAN_LITERAL;
    case CHAR:
        return Kind.CHAR_LITERAL;
    case CLASS:
        return Kind.STRING_LITERAL;
    case BOT:
        return Kind.NULL_LITERAL;
    default:
        throw new AssertionError("unknown literal kind " + this);
    }
}
 

private TreeNode convertClassDeclaration(ClassTree node, TreePath parent) {
  TreePath path = getTreePath(parent, node);
  TypeElement element = (TypeElement) getElement(path);
  // javac defines all type declarations with JCClassDecl, so differentiate here
  // to support our different declaration nodes.
  if (element.getKind() == ElementKind.ANNOTATION_TYPE) {
    throw new AssertionError("Annotation type declaration tree conversion not implemented");
  }

  TypeDeclaration newNode = convertClassDeclarationHelper(node, parent);

  newNode.setInterface(
      node.getKind() == Kind.INTERFACE || node.getKind() == Kind.ANNOTATION_TYPE);
  if (ElementUtil.isAnonymous(element)) {
    newUnit.getEnv().elementUtil().mapElementType(element, getTypeMirror(path));
  }
  return newNode;
}
 

private static TreePath adjustPathForModuleName(TreePath path) {
    TreePath tp = path;
    while (tp != null && (tp.getLeaf().getKind() == Kind.IDENTIFIER || tp.getLeaf().getKind() == Kind.MEMBER_SELECT)) {
        Tree parent = tp.getParentPath().getLeaf();
        if (parent.getKind() == Kind.MODULE && ((ModuleTree)parent).getName() == tp.getLeaf()) {
            return tp.getParentPath();
        }
        if (parent.getKind() == Kind.REQUIRES && ((RequiresTree)parent).getModuleName() == tp.getLeaf()
                || parent.getKind() == Kind.EXPORTS && ((ExportsTree)parent).getModuleNames() != null && ((ExportsTree)parent).getModuleNames().contains(tp.getLeaf())
                || parent.getKind() == Kind.OPENS && ((OpensTree)parent).getModuleNames() != null && ((OpensTree)parent).getModuleNames().contains(tp.getLeaf())) {
            return tp;
        }
        tp = tp.getParentPath();
    }
    return path;
}
 

public static TreePath findJavadoc(CompilationInfo javac, int offset) {
    TokenSequence<JavaTokenId> ts = SourceUtils.getJavaTokenSequence(javac.getTokenHierarchy(), offset);
    if (ts == null || !movedToJavadocToken(ts, offset)) {
        return null;
    }

    int offsetBehindJavadoc = ts.offset() + ts.token().length();

    while (ts.moveNext()) {
        TokenId tid = ts.token().id();
        if (tid == JavaTokenId.BLOCK_COMMENT) {
            if ("/**/".contentEquals(ts.token().text())) { // NOI18N
                // see #147533
                return null;
            }
        } else if (tid == JavaTokenId.JAVADOC_COMMENT) {
            if (ts.token().partType() == PartType.COMPLETE) {
                return null;
            }
        } else if (!IGNORE_TOKES.contains(tid)) {
            offsetBehindJavadoc = ts.offset();
            // it is magic for TreeUtilities.pathFor
            ++offsetBehindJavadoc;
            break;
        }
    }

    TreePath tp = javac.getTreeUtilities().pathFor(offsetBehindJavadoc);
    
    while (!TreeUtilities.CLASS_TREE_KINDS.contains(tp.getLeaf().getKind()) && tp.getLeaf().getKind() != Kind.METHOD && tp.getLeaf().getKind() != Kind.VARIABLE && tp.getLeaf().getKind() != Kind.COMPILATION_UNIT) {
        tp = tp.getParentPath();
        if (tp == null) {
            break;
        }
    }
    
    return tp;
}
 

@Hint(displayName = "#LBL_Empty_WHILE_LOOP", description = "#DSC_Empty_WHILE_LOOP", category = "empty", hintKind = Hint.Kind.INSPECTION, severity = Severity.VERIFIER, suppressWarnings = SUPPRESS_WARNINGS_KEY, id = "EmptyStatements_WHILE_LOOP")
@TriggerTreeKind(Tree.Kind.EMPTY_STATEMENT)
public static ErrorDescription forWHILE_LOOP(HintContext ctx) {
    final TreePath parentPath = ctx.getPath().getParentPath();
    final Tree parentLeaf = parentPath.getLeaf();
    if (!EnumSet.of(Kind.WHILE_LOOP).contains(parentLeaf.getKind())) {
        return null;
}

    final List<Fix> fixes = new ArrayList<>();
    fixes.add(FixFactory.createSuppressWarningsFix(ctx.getInfo(), parentPath, SUPPRESS_WARNINGS_KEY));

    return createErrorDescription(ctx, parentLeaf, fixes, Kind.WHILE_LOOP);
}
 

@Override
public Void scan(Tree node, Void ignored) {
    if (node == null)
        return null;
    Kind k = node.getKind();
    long pos = positions.getStartPosition(null,node);
    System.out.format("%s: %s%n", k, pos);
    if (k != Kind.MODIFIERS && pos < 0)
        throw new Error("unexpected position found");
    return super.scan(node, ignored);
}
 

@Override
public Void visitMemberSelect(MemberSelectTree tree, Map<String, Object> p) {
    if (tree.getExpression().getKind() == Kind.IDENTIFIER) {
        p.put("request", null);
    }
    
    scan(tree.getExpression(), p);
    
    Union2<String, DeclaredType> leftSide = (Union2<String, DeclaredType>) p.remove("result");
    
    p.remove("request");
    
    if (leftSide != null && leftSide.hasFirst()) {
        String rightSide = tree.getIdentifier().toString();
        
        if (ERROR.equals(rightSide))
            rightSide = "";
        
        boolean isMethodInvocation = getCurrentPath().getParentPath().getLeaf().getKind() == Kind.METHOD_INVOCATION;
        
        //Ignore .class (which will not help us much):
        if (!"class".equals(rightSide))
            hints.add(new EnclosedHint(leftSide.first(), rightSide, !isMethodInvocation));
    }
    
    return null;
}
 

private static TryTree findNestedARM(
        final Collection<? extends StatementTree> stms,
        final StatementTree var) {
    int state = var != null ? 0 : 1;
    for (StatementTree stm : stms) {
        if (stm == var) {
            state = 1;
        }
        if (state == 1) {
            if (stm.getKind() == Kind.TRY) {
                final TryTree tryTree = (TryTree)stm;
                if (tryTree.getResources() != null && !tryTree.getResources().isEmpty()) {
                    return tryTree;
                } else {
                    final Iterator<? extends StatementTree> blkStms = tryTree.getBlock().getStatements().iterator();
                    if (blkStms.hasNext()) {
                        StatementTree bstm = blkStms.next();
                        if (bstm.getKind() == Kind.TRY) {
                            return (TryTree)bstm;
                        }
                        if (bstm.getKind() == Kind.EXPRESSION_STATEMENT && blkStms.hasNext()) {
                            bstm = blkStms.next();
                            if (bstm.getKind() == Kind.TRY) {
                                return (TryTree)bstm;
                            }
                        }
                    }
                }
            }
            if (stm != var) {
                break;
            }
        }
    }
    return null;
}
 

private static ModuleElement.DirectiveKind directiveKind(Kind treeKind) {
    switch (treeKind) {
        case EXPORTS:
            return ModuleElement.DirectiveKind.EXPORTS;
        case PROVIDES:
            return ModuleElement.DirectiveKind.PROVIDES;
        case REQUIRES:
            return ModuleElement.DirectiveKind.REQUIRES;
        case USES:
            return ModuleElement.DirectiveKind.USES;
    }
    return null;
}