1 files changed, 25 insertions, 0 deletions
diff --git a/src/proto/error.rs b/src/proto/error.rs
new file mode 100644
index 0000000..8a901ce
--- /dev/null
+++ b/src/proto/error.rs
@@ -0,0 +1,25 @@
+use thiserror::Error;
+
+#[derive(Debug, Error, PartialEq)]
+pub enum ParseError {
+    #[error("message is empty")]
+    EmptyMessage,
+
+    #[error("missing command")]
+    MissingCommand,
+
+    #[error("invalid tag format: {0}")]
+    InvalidTag(String),
+
+    #[error("line exceeds max message length")]
+    MessageTooLong,
+}
+
+#[derive(Debug, Error)]
+pub enum CodecError {
+    #[error("parse error: {0}")]
+    Parse(#[from] ParseError),
+
+    #[error("I/O error: {0}")]
+    Io(#[from] std::io::Error),
+}