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Seal extension traits #20

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merged 1 commit into from
Aug 17, 2023
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Seal extension traits #20

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20 changes: 16 additions & 4 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1507,9 +1507,20 @@ impl windows::OpenOptionsExt for OpenOptions {
}
}

mod __private {
#[doc(hidden)]
pub trait Sealed {}

impl Sealed for super::OpenOptions {}
impl Sealed for super::File {}
impl Sealed for super::DirBuilder {}
impl Sealed for super::DirEntry {}
}

/// Unix-specific extensions.
#[cfg(unix)]
pub mod unix {
use super::__private::Sealed;
use super::*;

#[doc(no_inline)]
Expand All @@ -1533,7 +1544,7 @@ pub mod unix {
}

/// Unix-specific extensions to [`DirBuilder`].
pub trait DirBuilderExt {
pub trait DirBuilderExt: Sealed {
/// Sets the mode to create new directories with.
///
/// This option defaults to `0o777`.
Expand All @@ -1550,7 +1561,7 @@ pub mod unix {
}

/// Unix-specific extension methods for [`DirEntry`].
pub trait DirEntryExt {
pub trait DirEntryExt: Sealed {
/// Returns the underlying `d_ino` field in the contained `dirent` structure.
///
/// # Examples
Expand All @@ -1571,7 +1582,7 @@ pub mod unix {
}

/// Unix-specific extensions to [`OpenOptions`].
pub trait OpenOptionsExt {
pub trait OpenOptionsExt: Sealed {
/// Sets the mode bits that a new file will be created with.
///
/// If a new file is created as part of an [`OpenOptions::open()`] call then this
Expand Down Expand Up @@ -1622,6 +1633,7 @@ pub mod unix {
/// Windows-specific extensions.
#[cfg(windows)]
pub mod windows {
use super::__private::Sealed;
use super::*;

#[doc(no_inline)]
Expand Down Expand Up @@ -1662,7 +1674,7 @@ pub mod windows {
}

/// Windows-specific extensions to [`OpenOptions`].
pub trait OpenOptionsExt {
pub trait OpenOptionsExt: Sealed {
/// Overrides the `dwDesiredAccess` argument to the call to [`CreateFile`]
/// with the specified value.
///
Expand Down