public static void main(String argv[]) throws jasError, IOException {
// CodeAttr's contain the body of
// a method.
CodeAttr init = new CodeAttr();
init.addInsn(new Insn(opc_aload_0));
init.addInsn(new Insn(opc_invokenonvirtual, new MethodCP("java/lang/Object", "<init>", "()V")));
init.addInsn(new Insn(opc_return));
// ClassEnv's are used as a container
// to hold all information about a class.
ClassEnv nclass = new ClassEnv();
nclass.setClass(new ClassCP("out"));
nclass.setSuperClass(new ClassCP("java/lang/Object"));
// Add the init code to the class.
nclass.addMethod((short) ACC_PUBLIC, "<init>", "()V", init, null);
// write it all out
nclass.write(new DataOutputStream(new FileOutputStream("out.class")));
}
/**
* Writes the binary data for the class represented by this ClassFile object to the specified
* output stream, using the Java Class File format. Throws either an IOException or a jasError if
* something goes wrong.
*/
public void write(OutputStream outp) throws IOException, jasError {
class_env.setSource(source_name);
class_env.write(new DataOutputStream(outp));
}
