INNER CODE UNIT · Rust

fmt

RustAudio/cpal · src/lib.rs:308

    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}:{}", self.host(), self.id())
    }
}

impl std::str::FromStr for DeviceId {
    type Err = Error;

    /// Parse a device identifier from its string representation (e.g. `"alsa:hw:0,0"`).
    ///
    /// The format is `"<host>:<device>"` where `<host>` is the lowercase host name (see
    /// [`HostId`]) and `<device>` is the device-specific identifier string.
    ///
    /// # Errors
    ///
    /// - [`ErrorKind::InvalidInput`] if the string is not in `"host:device"` format.
    /// - [`ErrorKind::UnsupportedOperation`] if the host portion names a host not available on this
    ///   platform.

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