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/*
* Copyright (c) 2018, 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 8202141
* @summary Verify that .class synthetic Symbols are not duplicated.
* @library /tools/javac/lib
* @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
* @build combo.ComboTestHelper
* @run main ClassFieldDeduplication
*/
import com.sun.source.util.TaskEvent;
import com.sun.source.util.TaskListener;
import com.sun.tools.javac.code.Symbol;
import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;
import com.sun.tools.javac.tree.JCTree.JCFieldAccess;
import com.sun.tools.javac.tree.TreeScanner;
import combo.ComboInstance;
import combo.ComboParameter;
import combo.ComboTestHelper;
public class ClassFieldDeduplication extends ComboInstance<ClassFieldDeduplication> {
enum Type implements ComboParameter {
OBJECT("Object"),
PRIMITIVE("int"),
BOXED_PRIMITIVE("Integer"),
VOID("void"),
BOXED_VOID("Void"),
OBJECT_ARRAY("Object[]"),
PRIMITIVE_ARRAY("int[]"),
BOXED_PRIMITIVE_ARRAY("Integer[]"),
BOXED_VOID_ARRAY("Void[]");
String type;
Type(String type) {
this.type = type;
}
@Override
public String expand(String optParameter) {
return type;
}
}
public static void main(String... args) throws Exception {
new ComboTestHelper<ClassFieldDeduplication>()
.withDimension("TYPE", Type.values())
.run(ClassFieldDeduplication::new);
}
private static final String TEMPLATE =
"class Test { void t() { Object o1 = #{TYPE}.class; Object o2 = #{TYPE}.class; } }";
@Override
protected void doWork() throws Throwable {
newCompilationTask()
.withSourceFromTemplate(TEMPLATE)
.withListener(new TaskListener() {
JCCompilationUnit cut;
@Override
public void finished(TaskEvent e) {
if (e.getKind() == TaskEvent.Kind.PARSE) {
if (cut != null)
throw new AssertionError();
cut = (JCCompilationUnit) e.getCompilationUnit();
}
if (e.getKind() == TaskEvent.Kind.ANALYZE) {
cut.accept(new TreeScanner() {
Symbol s;
@Override
public void visitSelect(JCFieldAccess tree) {
if (tree.name.contentEquals("class")) {
if (s == null) {
s = tree.sym;
} else if (s != tree.sym) {
throw new AssertionError("Duplicated field symbol.");
}
}
super.visitSelect(tree);
}
});
}
}
})
.analyze(els -> {});
}
}
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