Struct conch_runtime::eval::ast_impl::ParameterSubstitution

#[must_use = "futures do nothing unless polled"]
pub struct ParameterSubstitution<T, F, I, A, E, R> where
    I: Iterator,
    I::Item: Spawn<E>,  { /* fields omitted */ }

A future representing a ParameterSubstitution evaluation.

Trait Implementations

impl<T, I, A, E, R, S> Debug for ParameterSubstitution<T, S::Future, I, A, E, R> where
    T: Debug,
    I: Iterator<Item = S> + Debug,
    A: Debug,
    S: Spawn<E> + Debug,
    S::EnvFuture: Debug,
    S::Future: Debug,
    S::Error: Debug,
    E: Debug,
    R: Debug, 

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

Formats the value using the given formatter.

impl<T, F, I, A, E> EnvFuture<E> for ParameterSubstitution<T, F, I, A, E, E::Read> where
    T: StringWrapper,
    F: EnvFuture<E, Item = Fields<T>>,
    F::Error: From<ExpansionError> + From<<I::Item as Spawn<E>>::Error>,
    I: Iterator,
    I::Item: Spawn<E>,
    <I::Item as Spawn<E>>::Error: IsFatalError + From<IoError>,
    A: ArithEval<E>,
    E: AsyncIoEnvironment + FileDescEnvironment + LastStatusEnvironment + ReportErrorEnvironment + SubEnvironment + VariableEnvironment<VarName = T, Var = T>,
    E::FileHandle: FileDescWrapper, 

type Item = Fields<T>

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

type Error = F::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, env: &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.