Struct Attribute 

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

One attribute of a name: what kind of thing it is, and the value.

Implementations

impl<'a> Attribute<'a>

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

What kind of attribute this is.

pub fn value(self) -> AttributeValue<'a>

The value, as encoded.

pub fn text(self, execution: &Memory) -> Result<Option<OwnedString>>

The value as text for a person to read, where it is text at all.

For display. Never for deciding that two names are the same one: see Name::matches.

Errors

Returns a located resource error if the execution or storage budget is spent.

pub fn folds(self, execution: &Memory) -> Result<bool>

Whether this value takes part in the preparation the profile describes, or is compared only as the bytes it was written in.

A caller explaining why a name did not match needs the same answer this comparison uses, not a guess at it: a value can be excluded for its encoding, for a code point the type prohibits, or for failing the direction step, and only one of those is visible from the outside.

Errors

Returns a located resource error if preparation cannot be financed.

pub fn folds_in(self, parent: &Reader<'_, '_>) -> Result<bool>

Whether this value prepares under the current producing query’s limits.

Uses the same preparation as Self::folds, funding scans and scratch through parent.execution() instead of only its aggregate account. Deferred BER strings retain this attribute’s original offset and depth and use the supplied reader’s session, just as Name::ordered_in. A query over another source supplies its original-source reader rebound to the current operation; retained Name storage is neither copied nor charged again. Resource refusal is an error, never a byte-only answer.

Trait Implementations

impl<'a> Clone for Attribute<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for Attribute<'a>

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

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

Formats the value using the given formatter.