diff options
Diffstat (limited to 'library/std/src/sys/windows/ext/process.rs')
| -rw-r--r-- | library/std/src/sys/windows/ext/process.rs | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/library/std/src/sys/windows/ext/process.rs b/library/std/src/sys/windows/ext/process.rs index 61e4c6a1d17..7a92381d660 100644 --- a/library/std/src/sys/windows/ext/process.rs +++ b/library/std/src/sys/windows/ext/process.rs @@ -7,6 +7,14 @@ use crate::process; use crate::sys; use crate::sys_common::{AsInner, AsInnerMut, FromInner, IntoInner}; +mod private { + /// This trait being unreachable from outside the crate + /// prevents other implementations of the `ExitStatusExt` trait, + /// which allows potentially adding more trait methods in the future. + #[stable(feature = "none", since = "1.51.0")] + pub trait Sealed {} +} + #[stable(feature = "process_extensions", since = "1.2.0")] impl FromRawHandle for process::Stdio { unsafe fn from_raw_handle(handle: RawHandle) -> process::Stdio { @@ -73,8 +81,11 @@ impl IntoRawHandle for process::ChildStderr { } /// Windows-specific extensions to [`process::ExitStatus`]. +/// +/// This trait is sealed: it cannot be implemented outside the standard library. +/// This is so that future additional methods are not breaking changes. #[stable(feature = "exit_status_from", since = "1.12.0")] -pub trait ExitStatusExt { +pub trait ExitStatusExt: private::Sealed { /// Creates a new `ExitStatus` from the raw underlying `u32` return value of /// a process. #[stable(feature = "exit_status_from", since = "1.12.0")] @@ -88,6 +99,9 @@ impl ExitStatusExt for process::ExitStatus { } } +#[stable(feature = "none", since = "1.51.0")] +impl private::Sealed for process::ExitStatus {} + /// Windows-specific extensions to the [`process::Command`] builder. #[stable(feature = "windows_process_extensions", since = "1.16.0")] pub trait CommandExt { |