/**
* External entry point for ScriptClassInfoCollector if invoked from the command line
*
* @param args argument vector, args contains a class for which to collect info
* @throws IOException if there were problems parsing args or class
*/
public static void main(final String[] args) throws IOException {
if (args.length != 1) {
System.err.println("Usage: " + ScriptClassInfoCollector.class.getName() + " <class>");
System.exit(1);
}
args[0] = args[0].replace('.', '/');
final ScriptClassInfoCollector scic = new ScriptClassInfoCollector();
try (final BufferedInputStream bis =
new BufferedInputStream(new FileInputStream(args[0] + ".class"))) {
final ClassReader reader = new ClassReader(bis);
reader.accept(scic, 0);
}
final ScriptClassInfo sci = scic.getScriptClassInfo();
final PrintStream out = System.out;
if (sci != null) {
out.println("script class: " + sci.getName());
out.println("===================================");
for (final MemberInfo memInfo : sci.getMembers()) {
out.println("kind : " + memInfo.getKind());
out.println("name : " + memInfo.getName());
out.println("attributes: " + memInfo.getAttributes());
out.println("javaName: " + memInfo.getJavaName());
out.println("javaDesc: " + memInfo.getJavaDesc());
out.println("where: " + memInfo.getWhere());
out.println("=====================================");
}
} else {
out.println(args[0] + " is not a @ScriptClass");
}
}
public static boolean check() {
Class<?> cls = HotSpotVMConfig.class;
String classFilePath = "/" + cls.getName().replace('.', '/') + ".class";
try {
InputStream classfile = cls.getResourceAsStream(classFilePath);
ClassReader cr =
new ClassReader(
Objects.requireNonNull(classfile, "Could not find class file for " + cls.getName()));
ClassVisitor cv = new HotSpotVMConfigVerifier();
cr.accept(cv, 0);
return true;
} catch (IOException e) {
throw new JVMCIError(e);
}
}
