stupid_simple_kv/
kv_error.rs

1use std::{
2    error::Error,
3    sync::{RwLockReadGuard, RwLockWriteGuard, TryLockError},
4};
5
6use crate::KvBackend;
7
8#[derive(Debug)]
9pub enum KvError {
10    KeyDecodeError(String),
11    InvalidSelector,
12    ValEncodeError(bincode::error::EncodeError),
13    ValDecodeError(bincode::error::DecodeError),
14    ValDowncastError(String),
15    Other(String),
16    #[cfg(feature = "sqlite")]
17    SqliteError(rusqlite::Error),
18}
19
20pub type KvResult<T> = Result<T, KvError>;
21
22impl std::fmt::Display for KvError {
23    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
24        match self {
25            KvError::KeyDecodeError(str) => write!(f, "Error decoding key: {str}"),
26            KvError::InvalidSelector => write!(
27                f,
28                "Invalid selector provided - Provide any one or two of start, end, prefix, not all"
29            ),
30            KvError::ValEncodeError(encode_error) => {
31                write!(f, "Error encoding value with bincode: {encode_error}")
32            }
33            KvError::ValDecodeError(decode_error) => {
34                write!(f, "Error decoding value with bincode: {decode_error}")
35            }
36            KvError::Other(str) => write!(f, "Error during kv op: {str}"),
37            KvError::SqliteError(error) => write!(f, "rusqlite error: {error}"),
38            KvError::ValDowncastError(s) => write!(f, "Error converting to KvValue: {s}"),
39        }
40    }
41}
42
43impl From<std::cell::BorrowError> for KvError {
44    fn from(value: std::cell::BorrowError) -> Self {
45        Self::Other(value.to_string())
46    }
47}
48
49impl From<std::sync::PoisonError<&mut Box<dyn KvBackend>>> for KvError {
50    fn from(value: std::sync::PoisonError<&mut Box<dyn KvBackend>>) -> Self {
51        Self::Other(value.to_string())
52    }
53}
54
55impl From<TryLockError<RwLockWriteGuard<'_, Box<dyn KvBackend>>>> for KvError {
56    fn from(value: TryLockError<RwLockWriteGuard<Box<dyn KvBackend>>>) -> Self {
57        Self::Other(value.to_string())
58    }
59}
60
61impl From<TryLockError<RwLockReadGuard<'_, Box<dyn KvBackend>>>> for KvError {
62    fn from(value: TryLockError<RwLockReadGuard<Box<dyn KvBackend>>>) -> Self {
63        Self::Other(value.to_string())
64    }
65}
66
67impl Error for KvError {}
stupid_simple_kv/kv_error.rs

stupid_simple_kv/
kv_error.rs
