1 files changed, 55 insertions, 0 deletions
diff --git a/notmuch/src/error.rs b/notmuch/src/error.rs
new file mode 100644
index 0000000..64d0716
--- /dev/null
+++ b/notmuch/src/error.rs
@@ -0,0 +1,55 @@
+use std;
+use std::{error, fmt, io, result};
+
+use ffi;
+
+pub type Result<T> = result::Result<T, Error>;
+
+#[derive(Debug)]
+pub enum Error {
+    IoError(io::Error),
+    NotmuchError(ffi::Status),
+    UnspecifiedError,
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", error::Error::description(self))
+    }
+}
+
+impl std::error::Error for Error {
+    fn description(&self) -> &str {
+        match self {
+            Error::IoError(e) => error::Error::description(e),
+            Error::NotmuchError(e) => e.description(),
+            Error::UnspecifiedError => "Generic notmuch error",
+        }
+    }
+
+    fn cause(&self) -> Option<&dyn error::Error> {
+        match *self {
+            Error::IoError(ref e) => Some(e),
+            Error::NotmuchError(ref e) => Some(e),
+            Error::UnspecifiedError => None,
+        }
+    }
+}
+
+impl std::convert::From<io::Error> for Error {
+    fn from(err: io::Error) -> Error {
+        Error::IoError(err)
+    }
+}
+
+impl std::convert::From<ffi::Status> for Error {
+    fn from(err: ffi::Status) -> Error {
+        Error::NotmuchError(err)
+    }
+}
+
+impl std::convert::From<ffi::notmuch_status_t> for Error {
+    fn from(err: ffi::notmuch_status_t) -> Error {
+        Error::NotmuchError(ffi::Status::from(err))
+    }
+}