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use std::fmt::Display;
use std::any::Any;
use std::time::{Instant, Duration};
use futures::Future;
use log::LogLevel;
use void::Void;
use log_error::LogError;
use until::Until;
use infallible::Infallible;
use finally::Finally;
use with_timeout::WithTimeout;
use first_ok2::FirstOk2;
use while_driving::WhileDriving;
use resume_unwind::ResumeUnwind;
use BoxFuture;
use BoxSendFuture;
pub trait FutureExt: Future + Sized {
fn into_boxed(self) -> BoxFuture<Self::Item, Self::Error>
where
Self: 'static
{
Box::new(self)
}
fn into_send_boxed(self) -> BoxSendFuture<Self::Item, Self::Error>
where
Self: Send + 'static,
{
Box::new(self)
}
fn until<C>(self, condition: C) -> Until<Self, C>
where
C: Future<Item=()>,
Self::Error: From<C::Error>
{
Until::new(self, condition)
}
fn infallible<E>(self) -> Infallible<Self, E>
where
Self: Future<Error=Void>
{
Infallible::new(self)
}
fn log_error(self, level: LogLevel, description: &'static str) -> LogError<Self>
where
Self: Future<Item=()>,
Self::Error: Display,
{
LogError::new(self, level, description)
}
fn finally<D>(self, on_drop: D) -> Finally<Self, D>
where
D: FnOnce()
{
Finally::new(self, on_drop)
}
fn with_timeout(self, duration: Duration) -> WithTimeout<Self> {
WithTimeout::new(self, duration)
}
fn with_timeout_at(self, instant: Instant) -> WithTimeout<Self> {
WithTimeout::new_at(self, instant)
}
fn first_ok2<F>(self, other: F) -> FirstOk2<Self, F>
where
F: Future<Item = Self::Item>
{
FirstOk2::new(self, other)
}
fn while_driving<F: Future>(self, other: F) -> WhileDriving<Self, F> {
WhileDriving::new(self, other)
}
fn resume_unwind(self) -> ResumeUnwind<Self>
where
Self: Future<Error=Box<Any + Send + 'static>>,
{
ResumeUnwind::new(self)
}
}
impl<T: Future + Sized> FutureExt for T {}