Enum Length 

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

BER Object Length

Variants

Definite(usize)

Definite form (X.690 8.1.3.3)

Indefinite

Indefinite form (X.690 8.1.3.6)

Implementations

impl Length

pub fn is_null(&self) -> bool

Return true if length is definite and equal to 0

pub fn definite(&self) -> Result<usize, Error>

Get length of primitive object

pub const fn is_definite(&self) -> bool

Return true if length is definite

pub const fn assert_definite(&self) -> Result<(), Error>

Return error if length is not definite

Trait Implementations

impl Add<usize> for Length

type Output = Length

The resulting type after applying the + operator.

fn add(self, rhs: usize) -> <Length as Add<usize>>::Output

Performs the + operation.

impl Add for Length

type Output = Length

The resulting type after applying the + operator.

fn add(self, rhs: Length) -> <Length as Add>::Output

Performs the + operation.

impl AddAssign<usize> for Length

fn add_assign(&mut self, rhs: usize)

Performs the += operation.

impl Clone for Length

fn clone(&self) -> Length

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Length

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

Formats the value using the given formatter.

impl DynTagged for Length

fn tag(&self) -> Tag

impl From<usize> for Length

fn from(l: usize) -> Length

Converts to this type from the input type.

impl PartialEq for Length

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToDer for Length

fn to_der_len(&self) -> Result<usize, Error>

Get the length of the object (including the header), when encoded

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

Attempt to write the DER header to this writer.

fn write_der_content( &self, _writer: &mut dyn Write, ) -> Result<usize, SerializeError>

Attempt to write the DER content (all except header) to this writer.

fn to_der_vec(&self) -> Result<Vec<u8>, SerializeError>

Write the DER encoded representation to a newly allocated Vec<u8>.

fn to_der_vec_raw(&self) -> Result<Vec<u8>, SerializeError>

Similar to using to_vec, but uses provided values without changes. This can generate an invalid encoding for a DER object.

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

Attempt to write the DER encoded representation (header and content) into this writer.

fn write_der_raw(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

Similar to using to_der, but uses provided values without changes. This can generate an invalid encoding for a DER object.

impl Copy for Length

impl Eq for Length

impl StructuralPartialEq for Length

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes

Size for each variant:

• Definite: 8 bytes
• Indefinite: 0 bytes