DynContext

Struct DynContext 

Source
pub struct DynContext { /* private fields */ }
Expand description

Dynamic context object. Provides every type that is 'static via ContextProvides, but will panic at runtime if used with an unavailable type.

Implementations§

Source§

impl DynContext

Source

pub fn provide_if_set<T: 'static>(&self) -> Option<&T>

Gets a single value if the type exists in the map

Trait Implementations§

Source§

impl<V> ContextProvides<V> for DynContext
where V: 'static,

Source§

fn provide(&self) -> &V

Source§

impl Debug for DynContext

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for DynContext

Source§

fn default() -> DynContext

Returns the “default value” for a type. Read more
Source§

impl Context for DynContext

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.