nostrdb-rs

nostrdb in rust!
git clone git://jb55.com/nostrdb-rs
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error.rs (1750B)

      1 use std::fmt;
      2 
      3 #[derive(Debug, Eq, PartialEq)]
      4 pub enum Error {
      5     DbOpenFailed,
      6     NotFound,
      7     DecodeError,
      8     QueryError,
      9     NoteProcessFailed,
     10     TransactionFailed,
     11     SubscriptionError,
     12     BufferOverflow,
     13     Filter(FilterError),
     14 }
     15 
     16 impl Error {
     17     pub fn filter(ferr: FilterError) -> Self {
     18         Error::Filter(ferr)
     19     }
     20 }
     21 
     22 #[derive(Debug, Eq, PartialEq)]
     23 pub enum FilterError {
     24     FieldAlreadyExists,
     25     FieldAlreadyStarted,
     26 }
     27 
     28 impl FilterError {
     29     pub fn already_exists() -> Error {
     30         Error::Filter(FilterError::FieldAlreadyExists)
     31     }
     32 
     33     pub fn already_started() -> Error {
     34         Error::Filter(FilterError::FieldAlreadyStarted)
     35     }
     36 }
     37 
     38 impl fmt::Display for FilterError {
     39     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
     40         match self {
     41             FilterError::FieldAlreadyExists => write!(f, "field already exists"),
     42             FilterError::FieldAlreadyStarted => write!(f, "field already started"),
     43         }
     44     }
     45 }
     46 
     47 impl fmt::Display for Error {
     48     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
     49         match self {
     50             Error::DbOpenFailed => write!(f, "Open failed"),
     51             Error::NotFound => write!(f, "Not found"),
     52             Error::QueryError => write!(f, "Query failed"),
     53             Error::DecodeError => write!(f, "Decode error"),
     54             Error::NoteProcessFailed => write!(f, "Note process failed"),
     55             Error::TransactionFailed => write!(f, "Transaction failed"),
     56             Error::SubscriptionError => write!(f, "Subscription failed"),
     57             Error::BufferOverflow => write!(f, "Buffer overflow"),
     58             Error::Filter(filter_err) => write!(f, "Filter: {filter_err}"),
     59         }
     60     }
     61 }
     62 
     63 impl std::error::Error for Error {}