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// Copyright 2020 John Millikin and the rust-fuse contributors.
//
// 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.
//
// SPDX-License-Identifier: Apache-2.0

#[repr(C)]
#[derive(Copy, Clone, PartialEq, Eq)]
pub struct Opcode(pub u32);

macro_rules! enum_fuse_opcode {
    ($( $(#[$meta:meta])* $name:ident = $val:expr,)+ ) => {
        use core::fmt;

        // OpcodeEnum is part of the crate's public API

        #[non_exhaustive]
        #[repr(u32)]
        #[derive(Copy, Clone, PartialEq, Eq, Ord, PartialOrd)]
        pub enum OpcodeEnum {
        $(
            $name = $val,
        )*
        }
        impl fmt::Display for OpcodeEnum {
            fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
                fmt::Debug::fmt(self, fmt)
            }
        }
        impl fmt::Debug for OpcodeEnum {
            fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
                match self {
                $(
                    Self::$name => fmt.write_str(&stringify!($name)),
                )*
                }
            }
        }

        pub use crate::internal::fuse_kernel::Opcode;
        $(
            $(#[$meta])*
            pub const $name: Opcode = Opcode($val);
        )*
        impl Opcode {
            pub(crate) fn to_enum(self) -> Option<OpcodeEnum> {
                match self {
                $(
                    Opcode($val) => Some(OpcodeEnum::$name),
                )*
                    _ => None,
                }
            }
        }
        impl fmt::Debug for Opcode {
            fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
                match self {
                $(
                    Opcode($val) => fmt.write_str(&stringify!($name)),
                )*
                    Opcode(x) => write!(fmt, "{}", x),
                }
            }
        }
    }
}

#[cfg(all(target_os = "linux", target_arch = "x86_64"))]
macro_rules! _IOR {
	(229, 0, uint32_t) => {
		2147804416u32
	};
}