1 files changed, 48 insertions, 0 deletions
diff --git a/vendor/anstream/src/lockable.rs b/vendor/anstream/src/lockable.rs
new file mode 100644
index 000000000..fcf20e317
--- /dev/null
+++ b/vendor/anstream/src/lockable.rs
@@ -0,0 +1,48 @@
+#[cfg(all(windows, feature = "wincon"))]
+use crate::RawStream;
+
+/// Explicitly lock a [`std::io::Write`]able
+pub trait Lockable {
+    type Locked;
+
+    /// Get exclusive access to the `AutoStream`
+    ///
+    /// Why?
+    /// - Faster performance when writing in a loop
+    /// - Avoid other threads interleaving output with the current thread
+    fn lock(self) -> Self::Locked;
+}
+
+impl Lockable for std::io::Stdout {
+    type Locked = std::io::StdoutLock<'static>;
+
+    #[inline]
+    fn lock(self) -> Self::Locked {
+        #[allow(clippy::needless_borrow)] // Its needed to avoid recursion
+        (&self).lock()
+    }
+}
+
+impl Lockable for std::io::Stderr {
+    type Locked = std::io::StderrLock<'static>;
+
+    #[inline]
+    fn lock(self) -> Self::Locked {
+        #[allow(clippy::needless_borrow)] // Its needed to avoid recursion
+        (&self).lock()
+    }
+}
+
+#[cfg(all(windows, feature = "wincon"))]
+impl<S> Lockable for anstyle_wincon::Console<S>
+where
+    S: RawStream + Lockable,
+    <S as Lockable>::Locked: RawStream,
+{
+    type Locked = anstyle_wincon::Console<<S as Lockable>::Locked>;
+
+    #[inline]
+    fn lock(self) -> Self::Locked {
+        self.map(|s| s.lock())
+    }
+}