Trait AllowedLenBitString 

pub trait AllowedLenBitString {
    const ALLOWED_LEN_RANGE: RangeInclusive<u16>;

    // Provided method
    fn check_bit_len(bit_len: u16) -> Result<(), Error> { ... }
}

Trait automatically derived on structs, by the BitString macro. Used for checking if binary data fits into defined struct.

/// Bit length of 2
struct MyBitString {
    flag1: bool,
    flag2: bool,
}

use der::BitString;

/// Bit length of 3..=4
#[derive(BitString)]
struct MyBitString {
    flag1: bool,
    flag2: bool,
    flag3: bool,

    #[asn1(optional = "true")]
    flag4: bool,
}

Required Associated Constants

const ALLOWED_LEN_RANGE: RangeInclusive<u16>

Implementer must specify how many bits are allowed

Provided Methods

fn check_bit_len(bit_len: u16) -> Result<(), Error>

Check the bit length.

Errors

Returns an error if the bitstring is not in expected length range.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors