Struct Attribute 

pub struct Attribute<'a> { /* private fields */ }

One original attribute, preserving all values without interpreting unknown syntax.

Implementations

impl<'a> Attribute<'a>

pub fn read( parent: &Reader<'a>, element: &Element<'a>, field: &'static str, ) -> Result<Self>

Reads one original Attribute using the same field kernel as a CMS catalogue. A containing schema (for example CAdES claimedAttributes) decides placement/cardinality; this does not invent a SignerInfo.

pub fn kind(&self) -> Oid<'a>

The original attribute identifier.

pub fn kind_encoding(&self) -> &'a [u8]

The original attrType encoding, including its tag and length octets.

pub fn values(&self) -> &[Element<'a>]

Every original value, including unknown or generically empty value sets.

pub fn span(&self) -> Span

The original attribute source range.

pub fn as_bytes(&self) -> &'a [u8]

The original encoded attribute without normalization.

pub fn element(&self) -> &Element<'a>

Whole original attribute element, preserving its producing coordinates. This lets a format enforce a required DER attribute without retagging, serializing or manufacturing a new parser/source.

pub fn value_reader( &self, index: usize, execution: &Memory, field: &'static str, ) -> Result<Option<Reader<'a>>>

Opens one original value in the current account and inherited parser depth.

The index selects this attribute’s catalogue, so a foreign element cannot be rebound to its provenance. No serialized bridge or replacement parser is used. Missing indices are absence; resource refusal remains an error.

pub fn value_reader_scoped<'operation, W: Work>( &self, index: usize, work: &'operation W, field: &'static str, ) -> Result<Option<ScopedReader<'a, 'operation>>>

where 'a: 'operation,

Opens an original value under a shorter current operation. Returned input views retain the document lifetime; only cursor/scratch borrows work. Lookup, parsing and storage obey both the original session and current operation. Encoding, offsets and inherited depth are preserved. A missing index is absence; resource refusal is an error, never absence.

pub fn value_reader_in<'query>( &self, index: usize, parent: &Reader<'query>, field: &'static str, ) -> Result<Option<Reader<'query>>>

where 'a: 'query,

Opens one original value with producing local and current aggregate work. A foreign parser session refuses before lookup/allocation; it cannot silently replace the current producing ceiling with this value’s old one.

pub fn single(&self, field: &'static str) -> Result<&Element<'a>>

Requires a singleton for attribute types whose specific schema demands it.

Trait Implementations

impl<'a> Debug for Attribute<'a>

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

Formats the value using the given formatter.