Struct Context 

pub struct Context { /* private fields */ }

A context for rendering operations.

Implementations

impl Context

pub fn new() -> Self

Creates a new Context.

pub fn insert<T: AnyValueSpec>(&mut self, key: ContextKey<T>, value: T::Item)

Inserts a value into the context.

pub fn get<T: AnyValueSpec>(&self, key: ContextKey<T>) -> Option<&T::Item>

Gets a reference to a value from the context.

pub fn get_mut<T: AnyValueSpec>( &mut self, key: ContextKey<T>, ) -> Option<&mut T::Item>

Gets a mutable reference to a value from the context.

pub fn remove<T: AnyValueSpec>(&mut self, key: ContextKey<T>) -> Option<T::Item>

Removes a value from the context.

Trait Implementations

impl Default for Context

fn default() -> Self

Returns the “default value” for a type.