Implement ExitCodeExt for Windows

1 files changed, 19 insertions, 0 deletions

diff --git a/library/std/src/os/windows/process.rs b/library/std/src/os/windows/process.rs
index 1c7e361c2a4..179c6e78807 100644
--- a/library/std/src/os/windows/process.rs
+++ b/library/std/src/os/windows/process.rs
@@ -194,3 +194,22 @@ impl ChildExt for process::Child {
         self.handle.main_thread_handle()
     }
 }
+
+/// Windows-specific extensions to [`process::ExitCode`].
+///
+/// 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 = "windows_process_exit_code_from", since = "1.63.0")]
+pub trait ExitCodeExt: Sealed {
+    /// Creates a new `ExitStatus` from the raw underlying `u32` return value of
+    /// a process.
+    #[stable(feature = "windows_process_exit_code_from", since = "1.63.0")]
+    fn from_raw(raw: u32) -> Self;
+}
+
+#[stable(feature = "windows_process_exit_code_from", since = "1.63.0")]
+impl ExitCodeExt for process::ExitCode {
+    fn from_raw(raw: u32) -> Self {
+        process::ExitCode::from_inner(From::from(raw))
+    }
+}