133 lines
4.4 KiB
Java
133 lines
4.4 KiB
Java
/*
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* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 7017664
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* @summary Basher for CompoundScopes
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* @modules jdk.compiler/com.sun.tools.javac.code
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* jdk.compiler/com.sun.tools.javac.file
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* jdk.compiler/com.sun.tools.javac.util
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*/
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import com.sun.source.util.JavacTask;
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import com.sun.tools.javac.code.Symbol;
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import com.sun.tools.javac.code.Types;
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import com.sun.tools.javac.file.JavacFileManager;
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import com.sun.tools.javac.util.Context;
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import com.sun.tools.javac.code.Symbol.*;
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import java.io.IOException;
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import java.net.URI;
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import java.util.Arrays;
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import java.util.List;
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import javax.lang.model.element.Element;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.SimpleJavaFileObject;
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import javax.tools.ToolProvider;
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import static javax.tools.JavaFileObject.Kind;
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public class ImplementationCacheTest {
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static class SourceFile extends SimpleJavaFileObject {
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final String source = "interface I { void m(); }\n" +
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"class A implements I { public void m() {} }\n" +
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"class B extends A { }\n";
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public SourceFile() {
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super(URI.create("test.java"), Kind.SOURCE);
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}
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public CharSequence getCharContent(boolean ignoreEncodingErrors) {
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return source;
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}
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}
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public static void main(String[] args) throws IOException {
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List<? extends JavaFileObject> files = Arrays.asList(new SourceFile());
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JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
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JavacTask ct = (JavacTask)tool.getTask(null, null, null, null, null, files);
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Context ctx = new Context();
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JavacFileManager.preRegister(ctx);
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checkImplementationCache(ct.analyze(), Types.instance(ctx));
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}
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static void checkImplementationCache(Iterable<? extends Element> elements, Types types) {
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if (types == null) {
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throw new AssertionError("problems initializing Types");
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}
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Symbol a = null;
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Symbol b = null;
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Symbol i = null;
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for (Element e : elements) {
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if (e.getSimpleName().contentEquals("A")) {
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a = (Symbol)e;
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} else if (e.getSimpleName().contentEquals("B")) {
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b = (Symbol)e;
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} else if (e.getSimpleName().contentEquals("I")) {
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i = (Symbol)e;
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}
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}
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if (a == null || b == null || i == null) {
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throw new AssertionError("missing class");
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}
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MethodSymbol I_m = null;
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for (Symbol sym : i.members().getSymbols()) {
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if (sym.name.contentEquals("m")) {
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I_m = (MethodSymbol)sym;
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}
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}
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if (I_m == null) {
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throw new AssertionError("missing method m() in scope of interface I");
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}
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Symbol impl = I_m.implementation((TypeSymbol)b, types, true);
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if (impl == null || impl.owner != a) {
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throw new AssertionError("wrong implementation for m() in B");
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}
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b.members().enter(I_m.clone(b));
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Symbol newImpl = I_m.implementation((TypeSymbol)b, types, true);
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if (newImpl == impl) {
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throw new AssertionError("stale implementation for m() in B");
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}
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if (newImpl == null || newImpl.owner != b) {
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throw new AssertionError("wrong implementation for m() in B");
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}
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}
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}
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