cap_fs_ext/
is_file_read_write.rs

1use cap_primitives::fs::is_file_read_write;
2use io_lifetimes::AsFilelike;
3use std::io;
4
5/// A trait for the `is_file_read_write` function for `File` types.
6///
7/// This is only implemented for `File` types; for arbitrary I/O handles, use
8/// [`system_interface::io::IsReadWrite`] instead.
9///
10/// [`system_interface::io::IsReadWrite`]: https://docs.rs/system-interface/latest/system_interface/io/trait.ReadReady.html
11pub trait IsFileReadWrite {
12    /// Test whether the given file is readable and/or writable.
13    fn is_file_read_write(&self) -> io::Result<(bool, bool)>;
14}
15
16impl IsFileReadWrite for std::fs::File {
17    #[inline]
18    fn is_file_read_write(&self) -> io::Result<(bool, bool)> {
19        is_file_read_write(self)
20    }
21}
22
23#[cfg(feature = "std")]
24impl IsFileReadWrite for cap_std::fs::File {
25    #[inline]
26    fn is_file_read_write(&self) -> io::Result<(bool, bool)> {
27        is_file_read_write(&self.as_filelike_view::<std::fs::File>())
28    }
29}
30
31#[cfg(all(feature = "std", feature = "fs_utf8"))]
32impl IsFileReadWrite for cap_std::fs_utf8::File {
33    #[inline]
34    fn is_file_read_write(&self) -> io::Result<(bool, bool)> {
35        is_file_read_write(&self.as_filelike_view::<std::fs::File>())
36    }
37}
38
39#[cfg(feature = "async_std")]
40impl IsFileReadWrite for async_std::fs::File {
41    #[inline]
42    fn is_file_read_write(&self) -> io::Result<(bool, bool)> {
43        is_file_read_write(&self.as_filelike_view::<std::fs::File>())
44    }
45}
46
47#[cfg(feature = "async_std")]
48impl IsFileReadWrite for cap_async_std::fs::File {
49    #[inline]
50    fn is_file_read_write(&self) -> io::Result<(bool, bool)> {
51        is_file_read_write(&self.as_filelike_view::<std::fs::File>())
52    }
53}
54
55#[cfg(all(feature = "async_std", feature = "fs_utf8"))]
56impl IsFileReadWrite for cap_async_std::fs_utf8::File {
57    #[inline]
58    fn is_file_read_write(&self) -> io::Result<(bool, bool)> {
59        is_file_read_write(&self.as_filelike_view::<std::fs::File>())
60    }
61}
cap_fs_ext/is_file_read_write.rs

cap_fs_ext/
is_file_read_write.rs
