// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#![stable(feature = "metadata_ext", since = "1.1.0")]

use fs::Metadata;
use sys_common::AsInner;

/// OS-specific extensions to [`fs::Metadata`].
///
/// [`fs::Metadata`]: ../../../../std/fs/struct.Metadata.html
#[stable(feature = "metadata_ext", since = "1.1.0")]
pub trait MetadataExt {
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_dev(&self) -> u64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_ino(&self) -> u64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_mode(&self) -> u32;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_nlink(&self) -> u64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_uid(&self) -> u32;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_gid(&self) -> u32;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_rdev(&self) -> u64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_size(&self) -> u64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_atime(&self) -> i64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_atime_nsec(&self) -> i64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_mtime(&self) -> i64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_mtime_nsec(&self) -> i64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_ctime(&self) -> i64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_ctime_nsec(&self) -> i64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_blksize(&self) -> u64;
    #[stable(feature = "metadata_ext2", since = "1.8.0")]
    fn st_blocks(&self) -> u64;
}

#[stable(feature = "metadata_ext", since = "1.1.0")]
impl MetadataExt for Metadata {
    fn st_dev(&self) -> u64 {
        self.as_inner().as_inner().st_dev as u64
    }
    fn st_ino(&self) -> u64 {
        self.as_inner().as_inner().st_ino as u64
    }
    fn st_mode(&self) -> u32 {
        self.as_inner().as_inner().st_mode as u32
    }
    fn st_nlink(&self) -> u64 {
        self.as_inner().as_inner().st_nlink as u64
    }
    fn st_uid(&self) -> u32 {
        self.as_inner().as_inner().st_uid as u32
    }
    fn st_gid(&self) -> u32 {
        self.as_inner().as_inner().st_gid as u32
    }
    fn st_rdev(&self) -> u64 {
        self.as_inner().as_inner().st_rdev as u64
    }
    fn st_size(&self) -> u64 {
        self.as_inner().as_inner().st_size as u64
    }
    fn st_atime(&self) -> i64 {
        self.as_inner().as_inner().st_atime as i64
    }
    fn st_atime_nsec(&self) -> i64 {
        self.as_inner().as_inner().st_atime_nsec as i64
    }
    fn st_mtime(&self) -> i64 {
        self.as_inner().as_inner().st_mtime as i64
    }
    fn st_mtime_nsec(&self) -> i64 {
        self.as_inner().as_inner().st_mtime_nsec as i64
    }
    fn st_ctime(&self) -> i64 {
        self.as_inner().as_inner().st_ctime as i64
    }
    fn st_ctime_nsec(&self) -> i64 {
        self.as_inner().as_inner().st_ctime_nsec as i64
    }
    fn st_blksize(&self) -> u64 {
        self.as_inner().as_inner().st_blksize as u64
    }
    fn st_blocks(&self) -> u64 {
        self.as_inner().as_inner().st_blocks as u64
    }
}
