private String name(ClassNode c) {
		int id = id(c);
		int level = Renamer.ctx.module.getLevel(c);

		if (level == 1) {
			return "Class" + id;
		} else {
			StringBuilder name = new StringBuilder();
			String superName = Renamer.ctx.module.getRefactorer().getClass(
					new ID(c.superName));
			if (superName != null) {
				name.append(superName);
			} else {
				name.append(c.superName.substring(
						c.superName.lastIndexOf("/") + 1, c.superName.length()));
			}
			name.append("_Sub").append(id);
			return name.toString();
		}
	}