blob: 44af1179097ede2bed8f3b42cfb5576304e60e65 (
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
|
#![deny(unconditional_recursion)]
#![allow(dead_code)]
fn foo() { //~ ERROR function cannot return without recursing
foo();
}
fn bar() {
if true {
bar()
}
}
fn baz() { //~ ERROR function cannot return without recursing
if true {
baz()
} else {
baz()
}
}
fn qux() {
loop {}
}
fn quz() -> bool { //~ ERROR function cannot return without recursing
if true {
while quz() {}
true
} else {
loop { quz(); }
}
}
// Trait method calls.
trait Foo {
fn bar(&self) { //~ ERROR function cannot return without recursing
self.bar()
}
}
impl Foo for Box<Foo+'static> {
fn bar(&self) { //~ ERROR function cannot return without recursing
loop {
self.bar()
}
}
}
// Trait method call with integer fallback after method resolution.
impl Foo for i32 {
fn bar(&self) { //~ ERROR function cannot return without recursing
0.bar()
}
}
impl Foo for u32 {
fn bar(&self) {
0.bar()
}
}
// Trait method calls via paths.
trait Foo2 {
fn bar(&self) { //~ ERROR function cannot return without recursing
Foo2::bar(self)
}
}
impl Foo2 for Box<Foo2+'static> {
fn bar(&self) { //~ ERROR function cannot return without recursing
loop {
Foo2::bar(self)
}
}
}
struct Baz;
impl Baz {
// Inherent method call.
fn qux(&self) { //~ ERROR function cannot return without recursing
self.qux();
}
// Inherent method call via path.
fn as_ref(&self) -> &Self { //~ ERROR function cannot return without recursing
Baz::as_ref(self)
}
}
// Trait method calls to impls via paths.
impl Default for Baz {
fn default() -> Baz { //~ ERROR function cannot return without recursing
let x = Default::default();
x
}
}
// Overloaded operators.
impl std::ops::Deref for Baz {
type Target = ();
fn deref(&self) -> &() { //~ ERROR function cannot return without recursing
&**self
}
}
impl std::ops::Index<usize> for Baz {
type Output = Baz;
fn index(&self, x: usize) -> &Baz { //~ ERROR function cannot return without recursing
&self[x]
}
}
// Overloaded autoderef.
struct Quux;
impl std::ops::Deref for Quux {
type Target = Baz;
fn deref(&self) -> &Baz { //~ ERROR function cannot return without recursing
self.as_ref()
}
}
fn all_fine() {
let _f = all_fine;
}
// issue 26333
trait Bar {
fn method<T: Bar>(&self, x: &T) {
x.method(x)
}
}
fn main() {}
|
