Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/types/ScopeListenerTest.java
test/tools/javac/types/ScopeListenerTest.java
- changeset 2813
- d94fe2d29b1e
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| 2812:9ec429ab0e7e | 2813:d94fe2d29b1e |
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| 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 8039262 | |
| 27 * @summary Ensure that using Types.membersClosure does not increase the number of listeners on the | |
| 28 * class's members Scope. | |
| 29 */ | |
| 30 | |
| 31 import com.sun.tools.javac.code.Scope; | |
| 32 import com.sun.tools.javac.code.Symbol; | |
| 33 import com.sun.tools.javac.code.Symtab; | |
| 34 import com.sun.tools.javac.code.Types; | |
| 35 import com.sun.tools.javac.file.JavacFileManager; | |
| 36 import com.sun.tools.javac.util.Context; | |
| 37 import com.sun.tools.javac.util.Names; | |
| 38 import java.lang.reflect.Field; | |
| 39 import java.util.Collection; | |
| 40 | |
| 41 public class ScopeListenerTest { | |
| 42 | |
| 43 public static void main(String[] args) throws Exception { | |
| 44 new ScopeListenerTest().run(); | |
| 45 } | |
| 46 | |
| 47 void run() throws Exception { | |
| 48 Context context = new Context(); | |
| 49 JavacFileManager.preRegister(context); | |
| 50 Types types = Types.instance(context); | |
| 51 Symtab syms = Symtab.instance(context); | |
| 52 Names names = Names.instance(context); | |
| 53 types.membersClosure(syms.stringType, true); | |
| 54 types.membersClosure(syms.stringType, false); | |
| 55 | |
| 56 Field listenersField = Scope.class.getDeclaredField("listeners"); | |
| 57 | |
| 58 listenersField.setAccessible(true); | |
| 59 | |
| 60 int listenerCount = | |
| 61 ((Collection) listenersField.get(syms.stringType.tsym.members())).size(); | |
| 62 | |
| 63 for (int i = 0; i < 100; i++) { | |
| 64 types.membersClosure(syms.stringType, true); | |
| 65 types.membersClosure(syms.stringType, false); | |
| 66 } | |
| 67 | |
| 68 int newListenerCount | |
| 69 = ((Collection) listenersField.get(syms.stringType.tsym.members())).size(); | |
| 70 | |
| 71 if (listenerCount != newListenerCount) { | |
| 72 throw new AssertionError("Orig listener count: " + listenerCount + | |
| 73 "; new listener count: " + newListenerCount); | |
| 74 } | |
| 75 | |
| 76 for (Symbol s : types.membersClosure(syms.stringType, true).getElements()) | |
| 77 ; | |
| 78 for (Symbol s : types.membersClosure(syms.stringType, false).getElementsByName(names.fromString("substring"))) | |
| 79 ; | |
| 80 } | |
| 81 | |
| 82 } |
