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/*
* Copyright (c) 2011, 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 7017664
* @summary Basher for CompoundScopes
* @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.source.util.JavacTask;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.code.Types;
import com.sun.tools.javac.file.JavacFileManager;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.code.Symbol.*;
import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import java.util.List;
import javax.lang.model.element.Element;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
import static javax.tools.JavaFileObject.Kind;
public class ImplementationCacheTest {
static class SourceFile extends SimpleJavaFileObject {
final String source = "interface I { void m(); }\n" +
"class A implements I { public void m() {} }\n" +
"class B extends A { }\n";
public SourceFile() {
super(URI.create("test.java"), Kind.SOURCE);
}
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
public static void main(String[] args) throws IOException {
List<? extends JavaFileObject> files = Arrays.asList(new SourceFile());
JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
JavacTask ct = (JavacTask)tool.getTask(null, null, null, null, null, files);
Context ctx = new Context();
JavacFileManager.preRegister(ctx);
checkImplementationCache(ct.analyze(), Types.instance(ctx));
}
static void checkImplementationCache(Iterable<? extends Element> elements, Types types) {
if (types == null) {
throw new AssertionError("problems initializing Types");
}
Symbol a = null;
Symbol b = null;
Symbol i = null;
for (Element e : elements) {
if (e.getSimpleName().contentEquals("A")) {
a = (Symbol)e;
} else if (e.getSimpleName().contentEquals("B")) {
b = (Symbol)e;
} else if (e.getSimpleName().contentEquals("I")) {
i = (Symbol)e;
}
}
if (a == null || b == null || i == null) {
throw new AssertionError("missing class");
}
MethodSymbol I_m = null;
for (Symbol sym : i.members().getSymbols()) {
if (sym.name.contentEquals("m")) {
I_m = (MethodSymbol)sym;
}
}
if (I_m == null) {
throw new AssertionError("missing method m() in scope of interface I");
}
Symbol impl = I_m.implementation((TypeSymbol)b, types, true);
if (impl == null || impl.owner != a) {
throw new AssertionError("wrong implementation for m() in B");
}
b.members().enter(I_m.clone(b));
Symbol newImpl = I_m.implementation((TypeSymbol)b, types, true);
if (newImpl == impl) {
throw new AssertionError("stale implementation for m() in B");
}
if (newImpl == null || newImpl.owner != b) {
throw new AssertionError("wrong implementation for m() in B");
}
}
}
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