Struct conch_runtime::spawn::SubstitutionEnvFuture

#[must_use = "futures do nothing unless polled"]
pub struct SubstitutionEnvFuture<I> { /* fields omitted */ }

A future that represents the spawning of a command substitution.

The standard output of the commands will be captured and trailing newlines trimmed.

Trait Implementations

impl<I: Debug> Debug for SubstitutionEnvFuture<I>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<I, S, E> EnvFuture<E> for SubstitutionEnvFuture<I> where
    I: Iterator<Item = S>,
    S: Spawn<E>,
    S::Error: IsFatalError + From<IoError>,
    E: AsyncIoEnvironment + FileDescEnvironment + LastStatusEnvironment + ReportErrorEnvironment + SubEnvironment,
    E::FileHandle: FileDescWrapper,
    E::Read: AsyncRead, 

type Item = Substitution<I, E::Read, E>

The type of value that this future will resolved with if it is successful.

type Error = S::Error

The type of error that this future will resolve with if it fails in a normal fashion.

fn poll(&mut self, env: &mut E) -> Poll<Self::Item, Self::Error>

Behaves identical to Future::poll when polled with a provided environment.

fn cancel(&mut self, _: &mut E)

Cancel a future and consider it as completed, thus giving it a chance to run any clean up as if it had resolved on its own.

fn pin_env(self, env: E) -> Pinned<E, Self> where
    E: Sized,
    Self: Sized, 

Pin an environment to this future, allowing the resulting future to be polled from anywhere without needing the caller to specify an environment.

fn fuse(self) -> Fuse<Self> where
    Self: Sized, 

Fuse a future such that poll and cancel will never again be called once it has completed.

fn boxed_result<'a>(self) -> BoxedResult<'a, Self> where
    Self: Sized,
    Self::Item: 'a + Future, 

Converts the resulting future into a boxed trait object.