brk: first commit

crates/brk_parser/src/error.rs

@@ -0,0 +1,36 @@
+use std::{
+    fmt::{self, Debug},
+    io,
+};
+
+pub type Result<T, E = Error> = std::result::Result<T, E>;
+
+#[derive(Debug)]
+pub enum Error {
+    IO(io::Error),
+    ZeroCopyError,
+}
+
+impl From<io::Error> for Error {
+    fn from(value: io::Error) -> Self {
+        Self::IO(value)
+    }
+}
+
+#[cfg(feature = "bytes")]
+impl<A, B> From<zerocopy::error::SizeError<A, B>> for Error {
+    fn from(_: zerocopy::error::SizeError<A, B>) -> Self {
+        Self::ZeroCopyError
+    }
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Error::IO(error) => Debug::fmt(&error, f),
+            Error::ZeroCopyError => write!(f, "Zero copy convert error"),
+        }
+    }
+}
+
+impl std::error::Error for Error {}