| /* |
| * Copyright 2017 Google Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8194268 |
| * @summary Incorrect parameter names for synthetic methods |
| * @modules jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.code |
| * jdk.compiler/com.sun.tools.javac.tree |
| * jdk.compiler/com.sun.tools.javac.util |
| * @compile DefaultParamNames.java |
| * @run main DefaultParamNames |
| */ |
| |
| import static java.util.stream.Collectors.joining; |
| |
| import com.sun.tools.javac.api.BasicJavacTask; |
| import com.sun.tools.javac.code.Flags; |
| import com.sun.tools.javac.code.Symbol.MethodSymbol; |
| import com.sun.tools.javac.code.Symtab; |
| import com.sun.tools.javac.code.Type.MethodType; |
| import com.sun.tools.javac.util.Assert; |
| import com.sun.tools.javac.util.Context; |
| import com.sun.tools.javac.util.List; |
| import com.sun.tools.javac.util.Names; |
| import java.util.Objects; |
| import javax.tools.JavaCompiler; |
| import javax.tools.ToolProvider; |
| |
| public class DefaultParamNames { |
| |
| public static void main(String[] args) { |
| JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); |
| BasicJavacTask task = (BasicJavacTask) compiler.getTask(null, null, null, null, null, null); |
| Context context = task.getContext(); |
| Names names = Names.instance(context); |
| Symtab symtab = Symtab.instance(context); |
| MethodType mt = |
| new MethodType( |
| List.of(symtab.intType, symtab.stringType, symtab.objectType), |
| symtab.voidType, |
| List.nil(), |
| symtab.methodClass); |
| MethodSymbol ms = |
| new MethodSymbol(Flags.SYNTHETIC, names.fromString("test"), mt, symtab.methodClass); |
| String paramNames = |
| ms.params().stream().map(p -> p.getSimpleName().toString()).collect(joining(",")); |
| assertEquals("arg0,arg1,arg2", paramNames); |
| } |
| |
| static void assertEquals(Object expected, Object actual) { |
| Assert.check( |
| Objects.equals(expected, actual), |
| String.format("expected: %s, but was: %s", expected, actual)); |
| } |
| } |