Struct Tag 

pub struct Tag {
    pub number: u8,
    pub class: TagClass,
    pub length: u32,
    pub is_opening: bool,
    pub is_closing: bool,
}

A decoded BACnet tag header.

Fields

number: u8

Tag number: datatype for application tags, field index for context tags.

class: TagClass

Tag class (application or context).

length: u32

Content length in bytes. For application booleans, this holds the raw L/V/T value (0 = false, nonzero = true) with no content octets.

is_opening: bool

Whether this is a context-specific opening tag (L/V/T = 6).

is_closing: bool

Whether this is a context-specific closing tag (L/V/T = 7).

Implementations

impl Tag

pub fn is_boolean_true(&self) -> bool

Check if this is an application boolean tag with value true.

Per Clause 20.2.3, application-tagged booleans encode the value in the tag’s L/V/T field with no content octets.

pub fn is_context(&self, number: u8) -> bool

Check if this is a context tag matching the given number (not opening/closing).

pub fn is_opening_tag(&self, number: u8) -> bool

Check if this is an opening tag matching the given number.

pub fn is_closing_tag(&self, number: u8) -> bool

Check if this is a closing tag matching the given number.

Trait Implementations

impl Clone for Tag

fn clone(&self) -> Tag

Returns a duplicate 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 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 Copy for Tag

impl Eq for Tag

impl StructuralPartialEq for Tag