librespot/metadata/src/util.rs
Roderick van Domburg 0e2686863a
Major metadata refactoring and enhancement
* Expose all fields of recent protobufs

 * Add support for user-scoped playlists, user root playlists and
   playlist annotations

 * Convert messages with the Rust type system

 * Attempt to adhere to embargos (tracks and episodes scheduled for
   future release)

 * Return `Result`s with meaningful errors instead of panicking on
   `unwrap`s

 * Add foundation for future playlist editing

 * Up version in connection handshake to get all version-gated features
2021-12-07 23:22:24 +01:00

39 lines
1 KiB
Rust

macro_rules! from_repeated_message {
($src:ty, $dst:ty) => {
impl From<&[$src]> for $dst {
fn from(src: &[$src]) -> Self {
let result = src.iter().map(From::from).collect();
Self(result)
}
}
};
}
pub(crate) use from_repeated_message;
macro_rules! from_repeated_enum {
($src:ty, $dst:ty) => {
impl From<&[$src]> for $dst {
fn from(src: &[$src]) -> Self {
let result = src.iter().map(|x| <$src>::from(*x)).collect();
Self(result)
}
}
};
}
pub(crate) use from_repeated_enum;
macro_rules! try_from_repeated_message {
($src:ty, $dst:ty) => {
impl TryFrom<&[$src]> for $dst {
type Error = MetadataError;
fn try_from(src: &[$src]) -> Result<Self, Self::Error> {
let result: Result<Vec<_>, _> = src.iter().map(TryFrom::try_from).collect();
Ok(Self(result?))
}
}
};
}
pub(crate) use try_from_repeated_message;