1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
use std::marker::PhantomData;
use futures::future::{ok, FutureResult};
use futures::{Async, Poll};
use super::{NewService, Service};
#[derive(Clone)]
pub struct Blank<R, E> {
_t: PhantomData<(R, E)>,
}
impl<R, E> Blank<R, E> {
pub fn err<E1>(self) -> Blank<R, E1> {
Blank { _t: PhantomData }
}
}
impl<R> Blank<R, ()> {
#[allow(clippy::new_ret_no_self)]
pub fn new<E>() -> Blank<R, E> {
Blank { _t: PhantomData }
}
}
impl<R, E> Default for Blank<R, E> {
fn default() -> Blank<R, E> {
Blank { _t: PhantomData }
}
}
impl<R, E> Service for Blank<R, E> {
type Request = R;
type Response = R;
type Error = E;
type Future = FutureResult<R, E>;
fn poll_ready(&mut self) -> Poll<(), Self::Error> {
Ok(Async::Ready(()))
}
fn call(&mut self, req: R) -> Self::Future {
ok(req)
}
}
pub struct BlankNewService<R, E1, E2 = ()> {
_t: PhantomData<(R, E1, E2)>,
}
impl<R, E1, E2> BlankNewService<R, E1, E2> {
pub fn new() -> BlankNewService<R, E1, E2> {
BlankNewService { _t: PhantomData }
}
}
impl<R, E1> BlankNewService<R, E1, ()> {
pub fn new_unit() -> BlankNewService<R, E1, ()> {
BlankNewService { _t: PhantomData }
}
}
impl<R, E1, E2> Default for BlankNewService<R, E1, E2> {
fn default() -> BlankNewService<R, E1, E2> {
Self::new()
}
}
impl<R, E1, E2> NewService for BlankNewService<R, E1, E2> {
type Request = R;
type Response = R;
type Error = E1;
type Config = ();
type Service = Blank<R, E1>;
type InitError = E2;
type Future = FutureResult<Self::Service, Self::InitError>;
fn new_service(&self, _: &()) -> Self::Future {
ok(Blank::default())
}
}