/*
 * Copyright 2015 Joshua R. Rodgers
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#![macro_use]

#[repr(C)]
#[derive(Clone, Copy, Eq, PartialEq, Hash, Debug)]
pub struct IID {
    pub data1: u32,
    pub data2: u16,
    pub data3: u16,
    pub data4: [u8;8]
}

pub trait HasIID {
    fn iid<'iid>() -> &'iid IID;
}

#[macro_export]
macro_rules! impl_iid {
    ($target:ty : $data1:expr, $data2:expr, $data3:expr, $data4_1:expr, $data4_2:expr, $data4_3:expr, $data4_4:expr, $data4_5:expr, $data4_6:expr, $data4_7:expr, $data4_8:expr) => {
        static INTERFACE_ID: $crate::com::IID = $crate::com::IID { data1: $data1, data2: $data2, data3: $data3, data4: [ $data4_1, $data4_2, $data4_3, $data4_4, $data4_5, $data4_6, $data4_7, $data4_8 ] };

        impl $crate::com::HasIID for $target {
            fn iid<'iid>() -> &'iid $crate::com::IID {
                &INTERFACE_ID
            }
        }
    }
}