aoqi@0: /*
aoqi@0:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @bug     8023835
aoqi@0:  * @summary Verify that TreeMaker.QualIdent(Symbol) field access cascade ends with
aoqi@0:  *          the top-level package (when no toplevel is set in TreeMaker)
aoqi@0:  * @run main MakeQualIdent
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.sun.source.tree.IdentifierTree;
aoqi@0: import com.sun.source.tree.MemberSelectTree;
aoqi@0: import com.sun.source.tree.Tree;
aoqi@0: import com.sun.source.util.JavacTask;
aoqi@0: import com.sun.source.util.TreeScanner;
aoqi@0: import com.sun.tools.javac.api.JavacTaskImpl;
aoqi@0: import com.sun.tools.javac.api.JavacTool;
aoqi@0: import com.sun.tools.javac.code.Symtab;
aoqi@0: import com.sun.tools.javac.tree.TreeMaker;
aoqi@0: import com.sun.tools.javac.util.Context;
aoqi@0: import java.util.ArrayList;
aoqi@0: 
aoqi@0: public class MakeQualIdent {
aoqi@0:     public static void main(String... args) throws Exception {
aoqi@0:         JavacTool tool = JavacTool.create();
aoqi@0:         JavacTask task = tool.getTask(null, null, null, new ArrayList<String>(), null, null);
aoqi@0:         Context ctx = ((JavacTaskImpl)task).getContext();
aoqi@0:         TreeMaker treeMaker = TreeMaker.instance(ctx);
aoqi@0:         Symtab syms = Symtab.instance(ctx);
aoqi@0: 
aoqi@0:         String stringTree = printTree(treeMaker.QualIdent(syms.stringType.tsym));
aoqi@0: 
aoqi@0:         if (!"java.lang.String".equals(stringTree)) {
aoqi@0:             throw new IllegalStateException(stringTree);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     private static String printTree(Tree tree) {
aoqi@0:         final StringBuilder result = new StringBuilder();
aoqi@0: 
aoqi@0:         new TreeScanner<Void, Void>() {
aoqi@0:             @Override public Void visitIdentifier(IdentifierTree node, Void p) {
aoqi@0:                 result.append(node.getName());
aoqi@0:                 return super.visitIdentifier(node, p);
aoqi@0:             }
aoqi@0:             @Override public Void visitMemberSelect(MemberSelectTree node, Void p) {
aoqi@0:                 scan(node.getExpression(), null);
aoqi@0:                 result.append(".");
aoqi@0:                 result.append(node.getIdentifier());
aoqi@0:                 return null;
aoqi@0:             }
aoqi@0:         }.scan(tree, null);
aoqi@0: 
aoqi@0:         return result.toString();
aoqi@0:     }
aoqi@0: }