1/* 2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * @test 26 * @bug 8023835 27 * @summary Verify that TreeMaker.QualIdent(Symbol) field access cascade ends with 28 * the top-level package (when no toplevel is set in TreeMaker) 29 * @modules jdk.compiler/com.sun.tools.javac.api 30 * jdk.compiler/com.sun.tools.javac.code 31 * jdk.compiler/com.sun.tools.javac.tree 32 * jdk.compiler/com.sun.tools.javac.util 33 * @run main MakeQualIdent 34 */ 35 36import com.sun.source.tree.IdentifierTree; 37import com.sun.source.tree.MemberSelectTree; 38import com.sun.source.tree.Tree; 39import com.sun.source.util.JavacTask; 40import com.sun.source.util.TreeScanner; 41import com.sun.tools.javac.api.JavacTaskImpl; 42import com.sun.tools.javac.api.JavacTool; 43import com.sun.tools.javac.code.Symtab; 44import com.sun.tools.javac.tree.TreeMaker; 45import com.sun.tools.javac.util.Context; 46import java.util.ArrayList; 47 48public class MakeQualIdent { 49 public static void main(String... args) throws Exception { 50 JavacTool tool = JavacTool.create(); 51 JavacTask task = tool.getTask(null, null, null, new ArrayList<String>(), null, null); 52 Context ctx = ((JavacTaskImpl)task).getContext(); 53 TreeMaker treeMaker = TreeMaker.instance(ctx); 54 Symtab syms = Symtab.instance(ctx); 55 56 String stringTree = printTree(treeMaker.QualIdent(syms.stringType.tsym)); 57 58 if (!"java.lang.String".equals(stringTree)) { 59 throw new IllegalStateException(stringTree); 60 } 61 } 62 63 private static String printTree(Tree tree) { 64 final StringBuilder result = new StringBuilder(); 65 66 new TreeScanner<Void, Void>() { 67 @Override public Void visitIdentifier(IdentifierTree node, Void p) { 68 result.append(node.getName()); 69 return super.visitIdentifier(node, p); 70 } 71 @Override public Void visitMemberSelect(MemberSelectTree node, Void p) { 72 scan(node.getExpression(), null); 73 result.append("."); 74 result.append(node.getIdentifier()); 75 return null; 76 } 77 }.scan(tree, null); 78 79 return result.toString(); 80 } 81} 82