Struct bytecode::annotations::Annotations

pub struct Annotations { /* private fields */ }

A container for an extensible, dynamically typed set of annotations.

Implementations

impl Annotations

pub fn has<T: Any>(&self) -> bool

Tests whether annotation of type T is present.

pub fn get<T: Any>(&self) -> Option<&T>

Gets annotation of type T.

pub fn get_or_default_mut<T: Any + Default + Clone>(&mut self) -> &mut T

Gets annotation of type T or creates one from default.

pub fn set<T: Any + Clone>(&mut self, x: T)

Sets annotation of type T.

pub fn remove<T: Any>(&mut self) -> Option<Box<T>>

Removes annotation of type T.

Trait Implementations

impl Clone for Annotations

fn clone(&self) -> Annotations

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Annotations

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

Formats the value using the given formatter.

impl Default for Annotations

fn default() -> Annotations

Returns the “default value” for a type.