test/tools/javac/tree/MakeQualIdent.java

changeset 2042
41599b57d262
parent 0
959103a6100f
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/tree/MakeQualIdent.java	Fri Sep 20 16:33:35 2013 +0200
     1.3 @@ -0,0 +1,77 @@
     1.4 +/*
     1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.23 + * or visit www.oracle.com if you need additional information or have any
    1.24 + * questions.
    1.25 + */
    1.26 +
    1.27 +/*
    1.28 + * @test
    1.29 + * @bug     8023835
    1.30 + * @summary Verify that TreeMaker.QualIdent(Symbol) field access cascade ends with
    1.31 + *          the top-level package (when no toplevel is set in TreeMaker)
    1.32 + * @run main MakeQualIdent
    1.33 + */
    1.34 +
    1.35 +import com.sun.source.tree.IdentifierTree;
    1.36 +import com.sun.source.tree.MemberSelectTree;
    1.37 +import com.sun.source.tree.Tree;
    1.38 +import com.sun.source.util.JavacTask;
    1.39 +import com.sun.source.util.TreeScanner;
    1.40 +import com.sun.tools.javac.api.JavacTaskImpl;
    1.41 +import com.sun.tools.javac.api.JavacTool;
    1.42 +import com.sun.tools.javac.code.Symtab;
    1.43 +import com.sun.tools.javac.tree.TreeMaker;
    1.44 +import com.sun.tools.javac.util.Context;
    1.45 +import java.util.ArrayList;
    1.46 +
    1.47 +public class MakeQualIdent {
    1.48 +    public static void main(String... args) throws Exception {
    1.49 +        JavacTool tool = JavacTool.create();
    1.50 +        JavacTask task = tool.getTask(null, null, null, new ArrayList<String>(), null, null);
    1.51 +        Context ctx = ((JavacTaskImpl)task).getContext();
    1.52 +        TreeMaker treeMaker = TreeMaker.instance(ctx);
    1.53 +        Symtab syms = Symtab.instance(ctx);
    1.54 +
    1.55 +        String stringTree = printTree(treeMaker.QualIdent(syms.stringType.tsym));
    1.56 +
    1.57 +        if (!"java.lang.String".equals(stringTree)) {
    1.58 +            throw new IllegalStateException(stringTree);
    1.59 +        }
    1.60 +    }
    1.61 +
    1.62 +    private static String printTree(Tree tree) {
    1.63 +        final StringBuilder result = new StringBuilder();
    1.64 +
    1.65 +        new TreeScanner<Void, Void>() {
    1.66 +            @Override public Void visitIdentifier(IdentifierTree node, Void p) {
    1.67 +                result.append(node.getName());
    1.68 +                return super.visitIdentifier(node, p);
    1.69 +            }
    1.70 +            @Override public Void visitMemberSelect(MemberSelectTree node, Void p) {
    1.71 +                scan(node.getExpression(), null);
    1.72 +                result.append(".");
    1.73 +                result.append(node.getIdentifier());
    1.74 +                return null;
    1.75 +            }
    1.76 +        }.scan(tree, null);
    1.77 +
    1.78 +        return result.toString();
    1.79 +    }
    1.80 +}

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