Enum bcder::Mode

pub enum Mode {
    Ber,
    Cer,
    Der,
}

The BER Mode.

X.680 defines not one but three sets of related encoding rules. All three follow the same basic ideas but implement them in slightly different ways.

This type represents these rules. The decode method provides a way to decode a source using the specific decoding mode. You can also change the decoding mode later on through the set_mode methods of Primitive and Constructed.

Variants

Ber

Basic Encoding Rules.

These are the most flexible rules, allowing alternative encodings for some types as well as indefinite length values.

Cer

Canonical Encoding Rules.

These rules always employ indefinite length encoding for constructed values and the shortest possible form for primitive values. There are additional restrictions for certain types.

Der

Distinguished Encoding Rules.

These rules always employ definite length values and require the shortest possible encoding. Additional rules apply to some types.

Implementations

impl Mode

pub fn decode<S, F, T>( self, source: S, op: F ) -> Result<T, DecodeError<<S::Source as Source>::Error>>

where S: IntoSource, F: FnOnce(&mut Constructed<'_, S::Source>) -> Result<T, DecodeError<<S::Source as Source>::Error>>,

Decode a source using a specific mode.

The method will attempt to decode source using the rules represented by this value. The closure op will be given the content of the source as a sequence of values. The closure does not need to process all values in the source.

pub fn is_ber(self) -> bool

Returns whether the mode is Mode::Ber.

pub fn is_cer(self) -> bool

Returns whether the mode is Mode::Cer.

pub fn is_der(self) -> bool

Returns whether the mode is Mode::Der.

Trait Implementations

impl Clone for Mode

fn clone(&self) -> Mode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Mode

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

Formats the value using the given formatter.

impl Default for Mode

fn default() -> Mode

Returns the “default value” for a type.

impl PartialEq for Mode

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

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

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

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

impl Copy for Mode

impl Eq for Mode

impl StructuralEq for Mode

impl StructuralPartialEq for Mode