Trait Context 

pub trait Context<'ctx>: Sized + Sealed<'ctx> {
    type Merged<Other: Context<'ctx>>: Context<'ctx>;

    // Required methods
    fn from_task<'s>(task_ctx: &'s mut Context<'ctx>) -> &'s mut Self;
    fn unmerge_self<'s, Other: Context<'ctx>>(
        merged: &'s mut Self::Merged<Other>,
    ) -> &'s mut Self;
    fn unmerge_other<'s, Other: Context<'ctx>>(
        merged: &'s mut Self::Merged<Other>,
    ) -> &'s mut Other;
}

Context trait for pull-based streams, allowing operators to be generic over synchronous (()) and asynchronous (core::task::Context) execution contexts.

Required Associated Types

type Merged<Other: Context<'ctx>>: Context<'ctx>

The merged context type when combining two pulls.

Required Methods

fn from_task<'s>(task_ctx: &'s mut Context<'ctx>) -> &'s mut Self

Creates a context reference from a core::task::Context.

fn unmerge_self<'s, Other: Context<'ctx>>( merged: &'s mut Self::Merged<Other>, ) -> &'s mut Self

Extracts the self-side context from a merged context.

fn unmerge_other<'s, Other: Context<'ctx>>( merged: &'s mut Self::Merged<Other>, ) -> &'s mut Other

Extracts the other-side context from a merged context.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<'ctx> Context<'ctx> for ()

type Merged<Other: Context<'ctx>> = Other

fn from_task<'s>(_task_ctx: &'s mut Context<'ctx>) -> &'s mut Self

fn unmerge_self<'s, Other: Context<'ctx>>( _merged: &'s mut Self::Merged<Other>, ) -> &'s mut Self

fn unmerge_other<'s, Other: Context<'ctx>>( merged: &'s mut Self::Merged<Other>, ) -> &'s mut Other

impl<'ctx> Context<'ctx> for Context<'ctx>

type Merged<Other: Context<'ctx>> = Context<'ctx>

fn from_task<'s>(task_ctx: &'s mut Context<'ctx>) -> &'s mut Self

fn unmerge_self<'s, Other: Context<'ctx>>( merged: &'s mut Self::Merged<Other>, ) -> &'s mut Self

fn unmerge_other<'s, Other: Context<'ctx>>( merged: &'s mut Self::Merged<Other>, ) -> &'s mut Other

Implementors