use std::error::Error as StdError;
#[derive(Debug)]
pub enum ProtoConversionError {
DeserializationError(String),
SerializationError(String),
InvalidTypeError(String),
}
impl StdError for ProtoConversionError {
fn description(&self) -> &str {
match *self {
ProtoConversionError::DeserializationError(ref msg) => msg,
ProtoConversionError::SerializationError(ref msg) => msg,
ProtoConversionError::InvalidTypeError(ref msg) => msg,
}
}
fn cause(&self) -> Option<&dyn StdError> {
match *self {
ProtoConversionError::DeserializationError(_) => None,
ProtoConversionError::SerializationError(_) => None,
ProtoConversionError::InvalidTypeError(_) => None,
}
}
}
impl std::fmt::Display for ProtoConversionError {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
match *self {
ProtoConversionError::DeserializationError(ref s) => {
write!(f, "unable to deserialize during protobuf conversion: {}", s)
}
ProtoConversionError::SerializationError(ref s) => {
write!(f, "unable to serialize during protobuf conversion: {}", s)
}
ProtoConversionError::InvalidTypeError(ref s) => write!(
f,
"invalid type encountered during protobuf conversion: {}",
s
),
}
}
}
pub trait FromProto<P>: Sized {
fn from_proto(other: P) -> Result<Self, ProtoConversionError>;
}
pub trait FromNative<N>: Sized {
fn from_native(other: N) -> Result<Self, ProtoConversionError>;
}
pub trait FromBytes<N>: Sized {
fn from_bytes(bytes: &[u8]) -> Result<N, ProtoConversionError>;
}
pub trait IntoBytes: Sized {
fn into_bytes(self) -> Result<Vec<u8>, ProtoConversionError>;
}
pub trait IntoNative<T>: Sized
where
T: FromProto<Self>,
{
fn into_native(self) -> Result<T, ProtoConversionError> {
FromProto::from_proto(self)
}
}
pub trait IntoProto<T>: Sized
where
T: FromNative<Self>,
{
fn into_proto(self) -> Result<T, ProtoConversionError> {
FromNative::from_native(self)
}
}
include!(concat!(env!("OUT_DIR"), "/protos/mod.rs"));