blob: d42165bbe3d8c46a1fa78cb6986e9645d563dcb0 (
plain)
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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
#![warn(clippy::manual_async_fn)]
#![allow(clippy::needless_pub_self, unused)]
use std::future::Future;
fn fut() -> impl Future<Output = i32> {
async { 42 }
}
#[rustfmt::skip]
fn fut2() ->impl Future<Output = i32> {
async { 42 }
}
#[rustfmt::skip]
fn fut3()-> impl Future<Output = i32> {
async { 42 }
}
fn empty_fut() -> impl Future<Output = ()> {
async {}
}
#[rustfmt::skip]
fn empty_fut2() ->impl Future<Output = ()> {
async {}
}
#[rustfmt::skip]
fn empty_fut3()-> impl Future<Output = ()> {
async {}
}
fn core_fut() -> impl core::future::Future<Output = i32> {
async move { 42 }
}
// should be ignored
fn has_other_stmts() -> impl core::future::Future<Output = i32> {
let _ = 42;
async move { 42 }
}
// should be ignored
fn not_fut() -> i32 {
42
}
// should be ignored
async fn already_async() -> impl Future<Output = i32> {
async { 42 }
}
struct S;
impl S {
fn inh_fut() -> impl Future<Output = i32> {
async {
// NOTE: this code is here just to check that the indentation is correct in the suggested fix
let a = 42;
let b = 21;
if a < b {
let c = 21;
let d = 42;
if c < d {
let _ = 42;
}
}
42
}
}
// should be ignored
fn not_fut(&self) -> i32 {
42
}
// should be ignored
fn has_other_stmts() -> impl core::future::Future<Output = i32> {
let _ = 42;
async move { 42 }
}
// should be ignored
async fn already_async(&self) -> impl Future<Output = i32> {
async { 42 }
}
}
// Tests related to lifetime capture
fn elided(_: &i32) -> impl Future<Output = i32> + '_ {
async { 42 }
}
// should be ignored
fn elided_not_bound(_: &i32) -> impl Future<Output = i32> {
async { 42 }
}
fn explicit<'a, 'b>(_: &'a i32, _: &'b i32) -> impl Future<Output = i32> + 'a + 'b {
async { 42 }
}
// should be ignored
#[allow(clippy::needless_lifetimes)]
fn explicit_not_bound<'a, 'b>(_: &'a i32, _: &'b i32) -> impl Future<Output = i32> {
async { 42 }
}
// should be ignored
mod issue_5765 {
use std::future::Future;
struct A;
impl A {
fn f(&self) -> impl Future<Output = ()> {
async {}
}
}
fn test() {
let _future = {
let a = A;
a.f()
};
}
}
pub fn issue_10450() -> impl Future<Output = i32> {
async { 42 }
}
pub(crate) fn issue_10450_2() -> impl Future<Output = i32> {
async { 42 }
}
pub(self) fn issue_10450_3() -> impl Future<Output = i32> {
async { 42 }
}
fn main() {}
|