Struct Tag

pub struct Tag {
    pub class: Class,
    pub value: u32,
}

An abstract representation of an ASN.1 tag that uniquely identifies a type within a ASN.1 module for codecs.

Fields

class: Class

The class of the tag.

value: u32

The sub-class of the tag.

Implementations

impl Tag

pub const EOC: Tag

pub const BOOL: Tag

pub const INTEGER: Tag

pub const BIT_STRING: Tag

pub const OCTET_STRING: Tag

pub const NULL: Tag

pub const OBJECT_IDENTIFIER: Tag

pub const OBJECT_DESCRIPTOR: Tag

pub const EXTERNAL: Tag

pub const REAL: Tag

pub const ENUMERATED: Tag

pub const EMBEDDED_PDV: Tag

pub const UTF8_STRING: Tag

pub const RELATIVE_OID: Tag

pub const SEQUENCE: Tag

pub const SET: Tag

pub const NUMERIC_STRING: Tag

pub const PRINTABLE_STRING: Tag

pub const TELETEX_STRING: Tag

pub const VIDEOTEX_STRING: Tag

pub const IA5_STRING: Tag

pub const UTC_TIME: Tag

pub const GENERALIZED_TIME: Tag

pub const GRAPHIC_STRING: Tag

pub const VISIBLE_STRING: Tag

pub const GENERAL_STRING: Tag

pub const UNIVERSAL_STRING: Tag

pub const CHARACTER_STRING: Tag

pub const BMP_STRING: Tag

impl Tag

pub const CHOICE: Self = Self::EOC

The Tag constant to use to represent CHOICE type’s AsnType::TAG.

pub const fn new(class: Class, value: u32) -> Self

Create a new tag from class and value.

pub const fn new_application(value: u32) -> Self

Create a new APPLICATION tag from value.

pub const fn new_context(value: u32) -> Self

Create a new CONTEXT tag from value.

pub const fn new_private(value: u32) -> Self

Create a new PRIVATE tag from value.

pub fn set_value(self, value: u32) -> Self

Set the value of the tag.

pub const fn is_choice(&self) -> bool

Returns whether Tag is defined as Tag::EOC, and thus is an invalid tag and must be CHOICE structure.

Trait Implementations

impl Clone for Tag

fn clone(&self) -> Tag

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Tag

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

Formats the value using the given formatter.

impl Display for Tag

Implement display for Tag; represents class as string and value as number.

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

Formats the value using the given formatter.

impl Ord for Tag

fn cmp(&self, other: &Tag) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Tag

fn eq(&self, other: &Tag) -> 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 PartialOrd for Tag

fn partial_cmp(&self, other: &Tag) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Tag

impl Eq for Tag

impl StructuralPartialEq for Tag