Struct AtomAnnotations 

pub struct AtomAnnotations { /* private fields */ }

Custom per-atom columns, ordered by name for deterministic iteration.

Implementations

impl AtomAnnotations

pub fn len(&self) -> usize

Number of custom columns.

pub fn is_empty(&self) -> bool

Returns true when no custom column is present.

pub fn get(&self, name: &str) -> Option<&AtomAnnotation>

Looks up a column by its exact name.

pub fn iter(&self) -> impl Iterator<Item = (&str, &AtomAnnotation)>

Iterates columns in lexicographic name order.

pub fn insert( &mut self, name: impl Into<Box<str>>, column: AtomAnnotation, ) -> Option<AtomAnnotation>

Inserts or replaces a column, returning the previous one.

pub fn remove(&mut self, name: &str) -> Option<AtomAnnotation>

Removes a named column.

Trait Implementations

impl Clone for AtomAnnotations

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AtomAnnotations

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

Formats the value using the given formatter.

impl Default for AtomAnnotations

fn default() -> Self

Returns the “default value” for a type.