sqlx-exasol-impl 0.9.2

Driver implementation for sqlx-exasol. Not meant to be used directly.
Documentation 
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use serde::{Deserialize, Serialize};

use super::error::ExaConfigError;

/// Enum listing the protocol versions that can be used when establishing a websocket connection to
/// Exasol. Defaults to the highest defined protocol version and falls back to the highest protocol
/// version supported by the server.
#[derive(Debug, Default, Clone, Copy, Eq, PartialEq, Deserialize, Serialize)]
#[serde(try_from = "u8")]
#[serde(into = "u8")]
#[repr(u8)]
pub enum ProtocolVersion {
    V1 = 1,
    V2 = 2,
    V3 = 3,
    V4 = 4,
    #[default]
    V5 = 5,
}

impl From<ProtocolVersion> for u8 {
    fn from(value: ProtocolVersion) -> Self {
        value as Self
    }
}

impl TryFrom<u8> for ProtocolVersion {
    type Error = ExaConfigError;

    fn try_from(value: u8) -> Result<Self, Self::Error> {
        match value {
            1 => Ok(Self::V1),
            2 => Ok(Self::V2),
            3 => Ok(Self::V3),
            4 => Ok(Self::V4),
            5 => Ok(Self::V5),
            _ => Err(ExaConfigError::InvalidParameter("protocol-version")),
        }
    }
}