test/langtools/tools/javac/scope/RemoveSymbolUnitTest.java
changeset 47216 71c04702a3d5
parent 36526 3b41f1c69604
child 58500 03165abce4cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/tools/javac/scope/RemoveSymbolUnitTest.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. 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 8080842
+ * @summary Ensure Scope impl can cope with remove() when a field and method share the name.
+ * @modules jdk.compiler/com.sun.tools.javac.code
+ *          jdk.compiler/com.sun.tools.javac.file
+ *          jdk.compiler/com.sun.tools.javac.util
+ */
+
+import com.sun.tools.javac.util.*;
+import com.sun.tools.javac.code.*;
+import com.sun.tools.javac.code.Scope.*;
+import com.sun.tools.javac.code.Symbol.*;
+import com.sun.tools.javac.file.JavacFileManager;
+
+public class RemoveSymbolUnitTest {
+
+    Context context;
+    Names names;
+    Symtab symtab;
+
+    public static void main(String... args) throws Exception {
+        new RemoveSymbolUnitTest().run();
+    }
+
+    public void run() {
+        context = new Context();
+        JavacFileManager.preRegister(context); // required by ClassReader which is required by Symtab
+        names = Names.instance(context);
+        symtab = Symtab.instance(context);
+
+        Name hasNext =  names.fromString("hasNext");
+        ClassSymbol clazz = new ClassSymbol(0,
+                                            names.fromString("X"),
+                                            Type.noType,
+                                            symtab.unnamedModule.unnamedPackage);
+
+        VarSymbol v = new VarSymbol(0, hasNext, Type.noType, clazz);
+        MethodSymbol m = new MethodSymbol(0, hasNext, Type.noType, clazz);
+
+        // Try enter and remove in different shuffled combinations.
+        // working with fresh scope each time.
+        WriteableScope cs = WriteableScope.create(clazz);
+        cs.enter(v);
+        cs.enter(m);
+        cs.remove(v);
+        Symbol s = cs.findFirst(hasNext);
+        if (s != m)
+            throw new AssertionError("Wrong symbol");
+
+        cs = WriteableScope.create(clazz);
+        cs.enter(m);
+        cs.enter(v);
+        cs.remove(v);
+        s = cs.findFirst(hasNext);
+        if (s != m)
+            throw new AssertionError("Wrong symbol");
+
+        cs = WriteableScope.create(clazz);
+        cs.enter(v);
+        cs.enter(m);
+        cs.remove(m);
+        s = cs.findFirst(hasNext);
+        if (s != v)
+            throw new AssertionError("Wrong symbol");
+
+        cs = WriteableScope.create(clazz);
+        cs.enter(m);
+        cs.enter(v);
+        cs.remove(m);
+        s = cs.findFirst(hasNext);
+        if (s != v)
+            throw new AssertionError("Wrong symbol");
+    }
+}