Trait Context 

pub trait Context:
    Sync
    + Send
    + AnySync {
    // Required method
    fn term(&self) -> Arc<Terminal> ;
}

Shared execution context passed to command handlers, providing access to the underlying terminal and allowing downcasting to a concrete type.

Required Methods

fn term(&self) -> Arc<Terminal>

Returns the terminal associated with this context.

Implementations

impl dyn Context

pub fn is<_T>(&self) -> bool

where _T: Any, Self: Downcast<_T>,

pub fn downcast_ref<_T>(&self) -> Result<&_T, TypeMismatch>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_mut<_T>(&mut self) -> Result<&mut _T, TypeMismatch>

where _T: Any, Self: Downcast<_T>,

pub fn downcast<_T>( self: Box<Self>, ) -> Result<Box<_T>, DowncastError<Box<Self>>>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_rc<_T>( self: Rc<Self>, ) -> Result<Rc<_T>, DowncastError<Rc<Self>>>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_arc<_T>( self: Arc<Self>, ) -> Result<Arc<_T>, DowncastError<Arc<Self>>>

where _T: AnySync, Self: DowncastSync<_T>,

impl dyn Context + Sync + Send

pub fn is<_T>(&self) -> bool

where _T: Any, Self: Downcast<_T>,

pub fn downcast_ref<_T>(&self) -> Result<&_T, TypeMismatch>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_mut<_T>(&mut self) -> Result<&mut _T, TypeMismatch>

where _T: Any, Self: Downcast<_T>,

pub fn downcast<_T>( self: Box<Self>, ) -> Result<Box<_T>, DowncastError<Box<Self>>>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_rc<_T>( self: Rc<Self>, ) -> Result<Rc<_T>, DowncastError<Rc<Self>>>

where _T: Any, Self: Downcast<_T>,

pub fn downcast_arc<_T>( self: Arc<Self>, ) -> Result<Arc<_T>, DowncastError<Arc<Self>>>

where _T: AnySync, Self: DowncastSync<_T>,

Trait Implementations

impl<_T> Downcast<_T> for dyn Context

where _T: Any,

fn is_type(&self) -> bool

fn downcast_ref(&self) -> Result<&T, TypeMismatch>

fn downcast_mut(&mut self) -> Result<&mut T, TypeMismatch>

fn downcast(self: Box<Self>) -> Result<Box<T>, DowncastError<Box<Self>>>

fn downcast_rc(self: Rc<Self>) -> Result<Rc<T>, DowncastError<Rc<Self>>>

impl<_T> Downcast<_T> for dyn Context + Sync + Send

where _T: Any,

fn is_type(&self) -> bool

fn downcast_ref(&self) -> Result<&T, TypeMismatch>

fn downcast_mut(&mut self) -> Result<&mut T, TypeMismatch>

fn downcast(self: Box<Self>) -> Result<Box<T>, DowncastError<Box<Self>>>

fn downcast_rc(self: Rc<Self>) -> Result<Rc<T>, DowncastError<Rc<Self>>>

impl<_T> DowncastSync<_T> for dyn Context

where _T: AnySync,

fn downcast_arc(self: Arc<Self>) -> Result<Arc<T>, DowncastError<Arc<Self>>>

impl<_T> DowncastSync<_T> for dyn Context + Sync + Send

where _T: AnySync,

fn downcast_arc(self: Arc<Self>) -> Result<Arc<T>, DowncastError<Arc<Self>>>

impl From<&(dyn Context + 'static)> for Arc<Terminal>

fn from(ctx: &dyn Context) -> Arc<Terminal>

Converts to this type from the input type.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors