jdk-24/test/langtools/tools/javac/classfiles/InnerClasses/SyntheticClasses.java
2024-05-24 15:58:34 +00:00

98 lines
3.5 KiB
Java

/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
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*
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/** @test
* @bug 8034854
* @summary Verify that the InnerClasses attribute has outer_class_info_index zero if it has
* inner_name_index zero (for synthetic classes)
* @enablePreview
* @modules java.base/jdk.internal.classfile.impl
* @compile SyntheticClasses.java
* @run main SyntheticClasses
*/
import java.io.*;
import java.util.*;
import java.lang.classfile.*;
import java.lang.classfile.attribute.*;
public class SyntheticClasses {
public static void main(String[] args) throws IOException {
new SyntheticClasses().run();
}
private void run() throws IOException {
File testClasses = new File(System.getProperty("test.classes"));
for (File classFile : Objects.requireNonNull(testClasses.listFiles(f -> f.getName().endsWith(".class")))) {
ClassModel cf = ClassFile.of().parse(classFile.toPath());
if (cf.thisClass().asInternalName().matches(".*\\$[0-9]+")) {
EnclosingMethodAttribute encl = cf.findAttribute(Attributes.enclosingMethod()).orElse(null);
if (encl != null) {
if (encl.enclosingMethodName().isPresent())
throw new IllegalStateException("Invalid EnclosingMethod.method: " +
encl.enclosingMethodName().get().stringValue() + ".");
}
}
InnerClassesAttribute attr = cf.findAttribute(Attributes.innerClasses()).orElse(null);
if (attr != null) {
for (InnerClassInfo info : attr.classes()) {
if (cf.majorVersion() < 51)
throw new IllegalStateException();
if (info.innerName().isEmpty() && info.outerClass().isPresent() )
throw new IllegalStateException("Invalid outer_class_info: " +
info.outerClass().get().asInternalName() +
"; inner_name is empty");
}
}
}
}
}
class SyntheticConstructorAccessTag {
private static class A {
private A(){}
}
public void test() {
new A();
}
}
class SyntheticEnumMapping {
private int convert(E e) {
switch (e) {
case A: return 0;
default: return -1;
}
}
enum E { A }
}
interface SyntheticAssertionsDisabled {
public default void test() {
assert false;
}
}