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storage_engine/src/error.rs

@@ -0,0 +1,44 @@
+#[derive(Debug)]
+pub enum Error {
+    DecodeError(DecodeErrorKind, bincode::error::DecodeError),
+    EncodeError(bincode::error::EncodeError),
+    IoError(std::io::Error),
+    InvalidStoreHeader,
+}
+
+#[derive(Debug)]
+pub enum DecodeErrorKind {
+    StoreHeaderNumberOfColumns,
+    StoreHeaderDeletedCount,
+    EntryData,
+    EntryIsDeleted,
+    EntryDataSize
+}
+
+// ===Errors===
+impl Error {
+    pub fn to_io_or_panic(self) -> std::io::Error {
+        use Error::*;
+        match self {
+            IoError(err) => err,
+            err => {
+                println!("{:?}", err);
+                panic!();
+            }
+        }
+    }
+}
+
+impl From<bincode::error::EncodeError> for Error {
+    fn from(err: bincode::error::EncodeError) -> Self {
+        Self::EncodeError(err)
+    }
+}
+
+impl From<std::io::Error> for Error {
+    fn from(err: std::io::Error) -> Self {
+        Self::IoError(err)
+    }
+}
+
+