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use core::fmt; /// Errors returned by the BLE stack. #[derive(Debug, PartialEq, Eq)] #[non_exhaustive] pub enum Error { /// Packet specified an invalid length value or was too short. /// /// This indicates a protocol violation, so the connection should /// considered lost (if one is currently established). InvalidLength, /// Invalid value supplied for field. InvalidValue, /// Unexpectedly reached EOF while reading or writing data. /// /// This is returned when the application tries to fit too much data into a /// PDU or other fixed-size buffer, and also when reaching EOF prematurely /// while reading data from a buffer. Eof, /// Parsing didn't consume the entire buffer. IncompleteParse, } impl fmt::Display for Error { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.write_str(match self { Error::InvalidLength => "invalid length value specified", Error::InvalidValue => "invalid value for field", Error::Eof => "end of buffer", Error::IncompleteParse => "excess data in buffer", }) } }