RemoveSymbolUnitTest.java revision 3170:dc017a37aac5 
1/*
2 * Copyright (c) 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 8080842
27 * @summary Ensure Scope impl can cope with remove() when a field and method share the name.
28 * @modules jdk.compiler/com.sun.tools.javac.code
29 *          jdk.compiler/com.sun.tools.javac.file
30 *          jdk.compiler/com.sun.tools.javac.util
31 */
32
33import com.sun.tools.javac.util.*;
34import com.sun.tools.javac.code.*;
35import com.sun.tools.javac.code.Scope.*;
36import com.sun.tools.javac.code.Symbol.*;
37import com.sun.tools.javac.file.JavacFileManager;
38
39public class RemoveSymbolUnitTest {
40
41    Context context;
42    Names names;
43    Symtab symtab;
44
45    public static void main(String... args) throws Exception {
46        new RemoveSymbolUnitTest().run();
47    }
48
49    public void run() {
50        context = new Context();
51        JavacFileManager.preRegister(context); // required by ClassReader which is required by Symtab
52        names = Names.instance(context);
53        symtab = Symtab.instance(context);
54
55        Name hasNext =  names.fromString("hasNext");
56        ClassSymbol clazz = new ClassSymbol(0,
57                                            names.fromString("X"),
58                                            Type.noType,
59                                            symtab.unnamedPackage);
60
61        VarSymbol v = new VarSymbol(0, hasNext, Type.noType, clazz);
62        MethodSymbol m = new MethodSymbol(0, hasNext, Type.noType, clazz);
63
64        // Try enter and remove in different shuffled combinations.
65        // working with fresh scope each time.
66        WriteableScope cs = WriteableScope.create(clazz);
67        cs.enter(v);
68        cs.enter(m);
69        cs.remove(v);
70        Symbol s = cs.findFirst(hasNext);
71        if (s != m)
72            throw new AssertionError("Wrong symbol");
73
74        cs = WriteableScope.create(clazz);
75        cs.enter(m);
76        cs.enter(v);
77        cs.remove(v);
78        s = cs.findFirst(hasNext);
79        if (s != m)
80            throw new AssertionError("Wrong symbol");
81
82        cs = WriteableScope.create(clazz);
83        cs.enter(v);
84        cs.enter(m);
85        cs.remove(m);
86        s = cs.findFirst(hasNext);
87        if (s != v)
88            throw new AssertionError("Wrong symbol");
89
90        cs = WriteableScope.create(clazz);
91        cs.enter(m);
92        cs.enter(v);
93        cs.remove(m);
94        s = cs.findFirst(hasNext);
95        if (s != v)
96            throw new AssertionError("Wrong symbol");
97    }
98}
99