Function write_class

src/manip.rs:77–89

(jvmti_env: *mut jvmtiEnv,
                      class_file: &Classfile,
                      new_class_data_len: *mut jint,
                      new_class_data: *mut *mut c_uchar)

}

unsafe fn write_class(jvmti_env: *mut jvmtiEnv,
                      class_file: &Classfile,
                      new_class_data_len: *mut jint,
                      new_class_data: *mut *mut c_uchar) -> Result<(), String> {
    let mut new_class_curs = Cursor::new(Vec::new());
    str_err(ClassWriter::new(&mut new_class_curs).write_class(&class_file))?;
    let new_class_vec: &Vec<u8> = new_class_curs.get_ref();
    ptr::write(new_class_data_len, new_class_vec.len() as jint);
    let alloc_res = (**jvmti_env).Allocate.unwrap()(jvmti_env, new_class_vec.len() as jlong, new_class_data);
    util::unit_or_jvmti_err(alloc_res)?;
    ptr::copy_nonoverlapping(new_class_vec.as_ptr(), *new_class_data, new_class_vec.len());
    return Result::Ok(());
}

unsafe fn add_param_info_field(class_file: &mut Classfile) {
    let field_name_idx = ConstantPoolIndex { idx: utf8_const(class_file, "paramInfo") };