1 files changed, 18 insertions, 0 deletions
diff --git a/third_party/rust/wio/src/error.rs b/third_party/rust/wio/src/error.rs
new file mode 100644
index 0000000000..4d321c1c8d
--- /dev/null
+++ b/third_party/rust/wio/src/error.rs
@@ -0,0 +1,18 @@
+// Licensed under the Apache License, Version 2.0
+// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
+// All files in the project carrying such notice may not be copied, modified, or distributed
+// except according to those terms.
+use std::result;
+use winapi::shared::minwindef::DWORD;
+use winapi::um::errhandlingapi::GetLastError;
+#[derive(Clone, Copy, Debug)]
+pub struct Error(DWORD);
+impl Error {
+    pub fn code(&self) -> u32 { self.0 }
+    pub fn last<T>() -> Result<T> {
+        Err(Error(unsafe { GetLastError() }))
+    }
+}
+
+pub type Result<T> = result::Result<T, Error>;