Struct AnnotationTable 

pub struct AnnotationTable { /* private fields */ }

A key-value annotation table for arbitrary metadata.

Implementations

impl AnnotationTable

pub fn new() -> Self

Creates an empty annotation table.

pub fn annotate(&mut self, key: impl Into<String>, val: impl Into<String>)

Adds an annotation value for the given key.

pub fn get_all(&self, key: &str) -> &[String]

Returns all annotations for key.

pub fn num_keys(&self) -> usize

Returns the number of distinct annotation keys.

pub fn has(&self, key: &str) -> bool

Returns true if the table has any annotations for key.

Trait Implementations

impl Default for AnnotationTable

fn default() -> Self

Returns the “default value” for a type.