Trait lmdb_zero::error::LmdbResultExt [−] [src]

pub trait LmdbResultExt {
    type Inner;
    fn to_opt(self) -> Result<Option<Self::Inner>>;
    fn ignore_exists(self, inner: Self::Inner) -> Self;
}

Extension methods for LMDB results

Associated Types

`type Inner`

Required Methods

`fn to_opt(self) -> Result<Option<Self::Inner>>`

Lift "not found" errors to None.

If Ok(val), return Ok(Some(val)). If Err but the code is NOTFOUND, return Ok(None). Otherwise, return self.

`fn ignore_exists(self, inner: Self::Inner) -> Self`

Suppress KEYEXIST errors.

If this is Err and the code is KEYEXIST, switch to Ok with the given inner value.

Implementors

impl<T> LmdbResultExt for Result<T>