summaryrefslogtreecommitdiffstats
path: root/src/tools/clippy/tests/ui/useless_conversion.stderr
blob: 6f7dc01d2cd274d76d4aecc13325eed5a657c57b (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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
error: useless conversion to the same type: `T`
  --> $DIR/useless_conversion.rs:7:13
   |
LL |     let _ = T::from(val);
   |             ^^^^^^^^^^^^ help: consider removing `T::from()`: `val`
   |
note: the lint level is defined here
  --> $DIR/useless_conversion.rs:3:9
   |
LL | #![deny(clippy::useless_conversion)]
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^

error: useless conversion to the same type: `T`
  --> $DIR/useless_conversion.rs:8:5
   |
LL |     val.into()
   |     ^^^^^^^^^^ help: consider removing `.into()`: `val`

error: useless conversion to the same type: `i32`
  --> $DIR/useless_conversion.rs:20:22
   |
LL |         let _: i32 = 0i32.into();
   |                      ^^^^^^^^^^^ help: consider removing `.into()`: `0i32`

error: useless conversion to the same type: `std::str::Lines<'_>`
  --> $DIR/useless_conversion.rs:50:22
   |
LL |     if Some("ok") == lines.into_iter().next() {}
   |                      ^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `lines`

error: useless conversion to the same type: `std::str::Lines<'_>`
  --> $DIR/useless_conversion.rs:55:21
   |
LL |     let mut lines = text.lines().into_iter();
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `text.lines()`

error: useless conversion to the same type: `std::str::Lines<'_>`
  --> $DIR/useless_conversion.rs:61:22
   |
LL |     if Some("ok") == text.lines().into_iter().next() {}
   |                      ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `text.lines()`

error: useless conversion to the same type: `std::ops::Range<i32>`
  --> $DIR/useless_conversion.rs:67:13
   |
LL |     let _ = NUMBERS.into_iter().next();
   |             ^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `NUMBERS`

error: useless conversion to the same type: `std::ops::Range<i32>`
  --> $DIR/useless_conversion.rs:72:17
   |
LL |     let mut n = NUMBERS.into_iter();
   |                 ^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `NUMBERS`

error: useless conversion to the same type: `std::string::String`
  --> $DIR/useless_conversion.rs:134:21
   |
LL |     let _: String = "foo".to_string().into();
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `"foo".to_string()`

error: useless conversion to the same type: `std::string::String`
  --> $DIR/useless_conversion.rs:135:21
   |
LL |     let _: String = From::from("foo".to_string());
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `From::from()`: `"foo".to_string()`

error: useless conversion to the same type: `std::string::String`
  --> $DIR/useless_conversion.rs:136:13
   |
LL |     let _ = String::from("foo".to_string());
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `"foo".to_string()`

error: useless conversion to the same type: `std::string::String`
  --> $DIR/useless_conversion.rs:137:13
   |
LL |     let _ = String::from(format!("A: {:04}", 123));
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `format!("A: {:04}", 123)`

error: useless conversion to the same type: `std::str::Lines<'_>`
  --> $DIR/useless_conversion.rs:138:13
   |
LL |     let _ = "".lines().into_iter();
   |             ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `"".lines()`

error: useless conversion to the same type: `std::vec::IntoIter<i32>`
  --> $DIR/useless_conversion.rs:139:13
   |
LL |     let _ = vec![1, 2, 3].into_iter().into_iter();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `vec![1, 2, 3].into_iter()`

error: useless conversion to the same type: `std::string::String`
  --> $DIR/useless_conversion.rs:140:21
   |
LL |     let _: String = format!("Hello {}", "world").into();
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into()`: `format!("Hello {}", "world")`

error: useless conversion to the same type: `i32`
  --> $DIR/useless_conversion.rs:145:13
   |
LL |     let _ = i32::from(a + b) * 3;
   |             ^^^^^^^^^^^^^^^^ help: consider removing `i32::from()`: `(a + b)`

error: useless conversion to the same type: `Foo<'a'>`
  --> $DIR/useless_conversion.rs:151:23
   |
LL |     let _: Foo<'a'> = s2.into();
   |                       ^^^^^^^^^ help: consider removing `.into()`: `s2`

error: useless conversion to the same type: `Foo<'a'>`
  --> $DIR/useless_conversion.rs:153:13
   |
LL |     let _ = Foo::<'a'>::from(s3);
   |             ^^^^^^^^^^^^^^^^^^^^ help: consider removing `Foo::<'a'>::from()`: `s3`

error: useless conversion to the same type: `std::vec::IntoIter<Foo<'a'>>`
  --> $DIR/useless_conversion.rs:155:13
   |
LL |     let _ = vec![s4, s4, s4].into_iter().into_iter();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `vec![s4, s4, s4].into_iter()`

error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
  --> $DIR/useless_conversion.rs:185:7
   |
LL |     b(vec![1, 2].into_iter());
   |       ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `vec![1, 2]`
   |
note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
  --> $DIR/useless_conversion.rs:175:13
   |
LL |     fn b<T: IntoIterator<Item = i32>>(_: T) {}
   |             ^^^^^^^^^^^^^^^^^^^^^^^^

error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
  --> $DIR/useless_conversion.rs:186:7
   |
LL |     c(vec![1, 2].into_iter());
   |       ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `vec![1, 2]`
   |
note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
  --> $DIR/useless_conversion.rs:176:18
   |
LL |     fn c(_: impl IntoIterator<Item = i32>) {}
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^

error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
  --> $DIR/useless_conversion.rs:187:7
   |
LL |     d(vec![1, 2].into_iter());
   |       ^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`: `vec![1, 2]`
   |
note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
  --> $DIR/useless_conversion.rs:179:12
   |
LL |         T: IntoIterator<Item = i32>,
   |            ^^^^^^^^^^^^^^^^^^^^^^^^

error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
  --> $DIR/useless_conversion.rs:190:7
   |
LL |     b(vec![1, 2].into_iter().into_iter());
   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`s: `vec![1, 2]`
   |
note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
  --> $DIR/useless_conversion.rs:175:13
   |
LL |     fn b<T: IntoIterator<Item = i32>>(_: T) {}
   |             ^^^^^^^^^^^^^^^^^^^^^^^^

error: explicit call to `.into_iter()` in function argument accepting `IntoIterator`
  --> $DIR/useless_conversion.rs:191:7
   |
LL |     b(vec![1, 2].into_iter().into_iter().into_iter());
   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing the `.into_iter()`s: `vec![1, 2]`
   |
note: this parameter accepts any `IntoIterator`, so you don't need to call `.into_iter()`
  --> $DIR/useless_conversion.rs:175:13
   |
LL |     fn b<T: IntoIterator<Item = i32>>(_: T) {}
   |             ^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 24 previous errors