jdk8-mips64-public/langtools: test/tools/javac/tree/MakeQualIdent.java@93012e2a5d1d

     1 /*

     2  * Copyright (c) 2013, 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  */

    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  * @run main MakeQualIdent

    30  */

    32 import com.sun.source.tree.IdentifierTree;

    33 import com.sun.source.tree.MemberSelectTree;

    34 import com.sun.source.tree.Tree;

    35 import com.sun.source.util.JavacTask;

    36 import com.sun.source.util.TreeScanner;

    37 import com.sun.tools.javac.api.JavacTaskImpl;

    38 import com.sun.tools.javac.api.JavacTool;

    39 import com.sun.tools.javac.code.Symtab;

    40 import com.sun.tools.javac.tree.TreeMaker;

    41 import com.sun.tools.javac.util.Context;

    42 import java.util.ArrayList;

    44 public class MakeQualIdent {

    45     public static void main(String... args) throws Exception {

    46         JavacTool tool = JavacTool.create();

    47         JavacTask task = tool.getTask(null, null, null, new ArrayList<String>(), null, null);

    48         Context ctx = ((JavacTaskImpl)task).getContext();

    49         TreeMaker treeMaker = TreeMaker.instance(ctx);

    50         Symtab syms = Symtab.instance(ctx);

    52         String stringTree = printTree(treeMaker.QualIdent(syms.stringType.tsym));

    54         if (!"java.lang.String".equals(stringTree)) {

    55             throw new IllegalStateException(stringTree);

    56         }

    57     }

    59     private static String printTree(Tree tree) {

    60         final StringBuilder result = new StringBuilder();

    62         new TreeScanner<Void, Void>() {

    63             @Override public Void visitIdentifier(IdentifierTree node, Void p) {

    64                 result.append(node.getName());

    65                 return super.visitIdentifier(node, p);

    66             }

    67             @Override public Void visitMemberSelect(MemberSelectTree node, Void p) {

    68                 scan(node.getExpression(), null);

    69                 result.append(".");

    70                 result.append(node.getIdentifier());

    71                 return null;

    72             }

    73         }.scan(tree, null);

    75         return result.toString();

    76     }

    77 }

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