Enum bsn1::Length[−][src]

pub enum Length {
    Indefinite,
    Definite(usize),
}
Expand description

Length represents ASN.1 length.

Note that Length represents the byte count of the contents in ASN.1. The total byte size of BER, DER, and CER is greater than that. (BER, DER, and CER are constituted of identifier, length, and contents.)

Variants

Indefinite

Represents ‘Indefinite’ length.

‘Indefinite’ is only for ‘BER’, and the contents must end with ‘EOC’ octets.

Definite(usize)

‘Definite’ is for ‘BER’, ‘DER’, and ‘CER’, and represents the byte count of the contents.

Implementations

impl Length[src]

pub fn to_bytes(&self) -> impl AsRef<[u8]>[src]

Serializes length .

This function won’t allocate heap memory.

Examples

use bsn1::Length;
use core::convert::TryFrom;

let length = Length::Definite(3);
let bytes = length.to_bytes();

let deserialized = Length::try_from(bytes.as_ref()).unwrap();
assert_eq!(length, deserialized);

Trait Implementations

impl Clone for Length[src]

fn clone(&self) -> Length[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for Length[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

Formats the value using the given formatter. Read more

impl Hash for Length[src]

fn hash<__H: Hasher>(&self, state: &mut __H)[src]

Feeds this value into the given Hasher. Read more

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 1.3.0[src]

Feeds a slice of this type into the given Hasher. Read more

impl PartialEq<Length> for Length[src]

fn eq(&self, other: &Length) -> bool[src]

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, other: &Length) -> bool[src]

This method tests for !=.

impl TryFrom<&'_ [u8]> for Length[src]

fn try_from(bytes: &[u8]) -> Result<Self, Self::Error>[src]

Parses bytes starting with length octets and returns a Length .

This function ignores extra octet(s) at the end of bytes if any.

type Error = Error

The type returned in the event of a conversion error.

impl Copy for Length[src]

impl Eq for Length[src]

impl StructuralEq for Length[src]

impl StructuralPartialEq for Length[src]

Auto Trait Implementations

impl RefUnwindSafe for Length

impl Send for Length

impl Sync for Length

impl Unpin for Length

impl UnwindSafe for Length

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.