1 files changed, 38 insertions, 0 deletions
diff --git a/src/backends/run_error.rs b/src/backends/run_error.rs
new file mode 100644
index 0000000..68f0495
--- /dev/null
+++ b/src/backends/run_error.rs
@@ -0,0 +1,38 @@
+use crate::wait::WaitError;
+use std::io::Error as IoError;
+
+#[derive(Debug)]
+pub enum RunError {
+    IoError(std::io::Error),
+    WaitError(WaitError)
+}
+
+impl From<IoError> for RunError {
+    fn from(err: IoError) -> Self {
+        RunError::IoError(err)
+    }
+}
+
+impl From<WaitError> for RunError {
+    fn from(err: WaitError) -> Self {
+        RunError::WaitError(err)
+    }
+}
+
+impl std::fmt::Display for RunError {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+        match &*self {
+            RunError::IoError(e) => e.fmt(f),
+            RunError::WaitError(e) => e.fmt(f)
+        }
+    }
+}
+
+impl std::error::Error for RunError {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match *self {
+            RunError::IoError(ref e) => Some(e),
+            RunError::WaitError(ref e) => Some(e)
+        }
+    }
+}
+\ No newline at end of file