1 /* 2 * Copyright (c) 2017, 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 8176714 27 * @summary javac is wrongly assuming that field JCMemberReference.overloadKind has been assigned to 28 * @library /tools/javac/lib 29 * @modules jdk.compiler/com.sun.source.util 30 * jdk.compiler/com.sun.tools.javac.api 31 * jdk.compiler/com.sun.tools.javac.code 32 * jdk.compiler/com.sun.tools.javac.file 33 * jdk.compiler/com.sun.tools.javac.tree 34 * jdk.compiler/com.sun.tools.javac.util 35 * @build DPrinter 36 * @run main FieldOverloadKindNotAssignedTest 37 */ 38 39 import java.net.URI; 40 import java.util.Arrays; 41 42 import javax.tools.JavaCompiler; 43 import javax.tools.JavaFileObject; 44 import javax.tools.SimpleJavaFileObject; 45 import javax.tools.ToolProvider; 46 47 import com.sun.source.tree.CompilationUnitTree; 48 import com.sun.source.util.JavacTask; 49 import com.sun.tools.javac.file.JavacFileManager; 50 import com.sun.tools.javac.tree.JCTree; 51 import com.sun.tools.javac.tree.JCTree.JCMemberReference; 52 import com.sun.tools.javac.tree.TreeScanner; 53 import com.sun.tools.javac.util.Assert; 54 import com.sun.tools.javac.util.Context; 55 56 public class FieldOverloadKindNotAssignedTest { main(String... args)57 public static void main(String... args) throws Exception { 58 new FieldOverloadKindNotAssignedTest().run(); 59 } 60 run()61 void run() throws Exception { 62 Context context = new Context(); 63 JavacFileManager.preRegister(context); 64 final JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); 65 JavacTask ct = (JavacTask)tool.getTask(null, null, null, null, null, Arrays.asList(new JavaSource())); 66 Iterable<? extends CompilationUnitTree> elements = ct.parse(); 67 ct.analyze(); 68 Assert.check(elements.iterator().hasNext()); 69 JCTree topLevel = (JCTree)elements.iterator().next(); 70 new TreeScanner() { 71 @Override 72 public void visitReference(JCMemberReference tree) { 73 Assert.check(tree.getOverloadKind() != null); 74 } 75 }.scan(topLevel); 76 } 77 78 static class JavaSource extends SimpleJavaFileObject { 79 80 String source = 81 "import java.util.function.*;\n" + 82 83 "class Test {\n" + 84 " void m(Predicate<String> psi) {}\n" + 85 " void m(Function<String, String> fss) {}\n" + 86 87 " void foo(boolean b) {\n" + 88 " m(b ? s -> false : Test::g);\n" + 89 " }\n" + 90 91 " static boolean g(String s) { return false; }\n" + 92 " static boolean g(Integer i) { return false; }\n" + 93 "}"; 94 JavaSource()95 public JavaSource() { 96 super(URI.create("myfo:/Foo.java"), JavaFileObject.Kind.SOURCE); 97 } 98 99 @Override getCharContent(boolean ignoreEncodingErrors)100 public CharSequence getCharContent(boolean ignoreEncodingErrors) { 101 return source; 102 } 103 } 104 } 105