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https://github.com/rust-lang/rust-clippy
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clean tests/ui/cast.rs
Cleaning the empty lines for clarity.
This commit is contained in:
Luis de Bethencourt
parent
34e4c0f9e3
commit
17284bacee
2 changed files with 78 additions and 91 deletions
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@ -13,30 +13,23 @@ fn main() {
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1u64 as f64;
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1i32 as f64; // Should not trigger the lint
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1u32 as f64; // Should not trigger the lint
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// Test cast_possible_truncation
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1f32 as i32;
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1f32 as u32;
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1f64 as f32;
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1i32 as i8;
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1i32 as u8;
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1f64 as isize;
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1f64 as usize;
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// Test cast_possible_wrap
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1u8 as i8;
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1u16 as i16;
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1u32 as i32;
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1u64 as i64;
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1usize as isize;
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// Test cast_sign_loss
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1i32 as u32;
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1isize as usize;
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// Extra checks for *size
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// Casting from *size
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1isize as i8;
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@ -46,28 +39,22 @@ fn main() {
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1usize as f32;
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1isize as i32;
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1isize as u32;
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1usize as u32;
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1usize as i32;
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// Casting to *size
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1i64 as isize;
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1i64 as usize;
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1u64 as isize;
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1u64 as usize;
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1u32 as isize;
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1u32 as usize; // Should not trigger any lint
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1i32 as isize; // Neither should this
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1i32 as usize;
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// Test cast_unnecessary
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1i32 as i32;
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1f32 as f32;
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false as bool;
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&1i32 as &i32;
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// Should not trigger
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1i32 as i64;
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let v = vec!(1);
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@ -41,9 +41,9 @@ error: casting u64 to f64 causes a loss of precision (u64 is 64 bits wide, but f
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| ^^^^^^^^^^^
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error: casting f32 to i32 may truncate the value
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--> $DIR/cast.rs:18:5
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--> $DIR/cast.rs:17:5
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18 | 1f32 as i32;
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17 | 1f32 as i32;
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| ^^^^^^^^^^^
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note: lint level defined here
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@ -53,15 +53,15 @@ note: lint level defined here
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: casting f32 to u32 may truncate the value
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--> $DIR/cast.rs:19:5
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--> $DIR/cast.rs:18:5
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19 | 1f32 as u32;
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18 | 1f32 as u32;
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| ^^^^^^^^^^^
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error: casting f32 to u32 may lose the sign of the value
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--> $DIR/cast.rs:19:5
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--> $DIR/cast.rs:18:5
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19 | 1f32 as u32;
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18 | 1f32 as u32;
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| ^^^^^^^^^^^
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note: lint level defined here
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@ -71,51 +71,51 @@ note: lint level defined here
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| ^^^^^^^^^^^^^^
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error: casting f64 to f32 may truncate the value
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--> $DIR/cast.rs:21:5
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--> $DIR/cast.rs:19:5
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21 | 1f64 as f32;
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19 | 1f64 as f32;
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| ^^^^^^^^^^^
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error: casting i32 to i8 may truncate the value
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--> $DIR/cast.rs:22:5
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--> $DIR/cast.rs:20:5
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22 | 1i32 as i8;
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20 | 1i32 as i8;
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| ^^^^^^^^^^
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error: casting i32 to u8 may lose the sign of the value
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--> $DIR/cast.rs:23:5
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--> $DIR/cast.rs:21:5
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23 | 1i32 as u8;
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21 | 1i32 as u8;
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| ^^^^^^^^^^
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error: casting i32 to u8 may truncate the value
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--> $DIR/cast.rs:23:5
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--> $DIR/cast.rs:21:5
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23 | 1i32 as u8;
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21 | 1i32 as u8;
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| ^^^^^^^^^^
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error: casting f64 to isize may truncate the value
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--> $DIR/cast.rs:25:5
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--> $DIR/cast.rs:22:5
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25 | 1f64 as isize;
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22 | 1f64 as isize;
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| ^^^^^^^^^^^^^
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error: casting f64 to usize may truncate the value
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--> $DIR/cast.rs:26:5
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--> $DIR/cast.rs:23:5
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26 | 1f64 as usize;
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23 | 1f64 as usize;
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| ^^^^^^^^^^^^^
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error: casting f64 to usize may lose the sign of the value
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--> $DIR/cast.rs:26:5
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--> $DIR/cast.rs:23:5
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26 | 1f64 as usize;
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23 | 1f64 as usize;
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| ^^^^^^^^^^^^^
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error: casting u8 to i8 may wrap around the value
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--> $DIR/cast.rs:30:5
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--> $DIR/cast.rs:25:5
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30 | 1u8 as i8;
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25 | 1u8 as i8;
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| ^^^^^^^^^
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note: lint level defined here
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@ -125,175 +125,175 @@ note: lint level defined here
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| ^^^^^^^^^^^^^^^^^^
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error: casting u16 to i16 may wrap around the value
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--> $DIR/cast.rs:31:5
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--> $DIR/cast.rs:26:5
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31 | 1u16 as i16;
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26 | 1u16 as i16;
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| ^^^^^^^^^^^
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error: casting u32 to i32 may wrap around the value
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--> $DIR/cast.rs:32:5
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--> $DIR/cast.rs:27:5
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32 | 1u32 as i32;
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27 | 1u32 as i32;
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| ^^^^^^^^^^^
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error: casting u64 to i64 may wrap around the value
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--> $DIR/cast.rs:33:5
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--> $DIR/cast.rs:28:5
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33 | 1u64 as i64;
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28 | 1u64 as i64;
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| ^^^^^^^^^^^
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error: casting usize to isize may wrap around the value
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--> $DIR/cast.rs:34:5
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--> $DIR/cast.rs:29:5
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34 | 1usize as isize;
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29 | 1usize as isize;
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| ^^^^^^^^^^^^^^^
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error: casting i32 to u32 may lose the sign of the value
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--> $DIR/cast.rs:37:5
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--> $DIR/cast.rs:31:5
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37 | 1i32 as u32;
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31 | 1i32 as u32;
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| ^^^^^^^^^^^
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error: casting isize to usize may lose the sign of the value
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--> $DIR/cast.rs:38:5
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--> $DIR/cast.rs:32:5
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38 | 1isize as usize;
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32 | 1isize as usize;
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| ^^^^^^^^^^^^^^^
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error: casting isize to i8 may truncate the value
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--> $DIR/cast.rs:42:5
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--> $DIR/cast.rs:35:5
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42 | 1isize as i8;
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35 | 1isize as i8;
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| ^^^^^^^^^^^^
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error: casting isize to f64 causes a loss of precision on targets with 64-bit wide pointers (isize is 64 bits wide, but f64's mantissa is only 52 bits wide)
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--> $DIR/cast.rs:43:5
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--> $DIR/cast.rs:36:5
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43 | 1isize as f64;
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36 | 1isize as f64;
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| ^^^^^^^^^^^^^
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error: casting usize to f64 causes a loss of precision on targets with 64-bit wide pointers (usize is 64 bits wide, but f64's mantissa is only 52 bits wide)
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--> $DIR/cast.rs:44:5
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--> $DIR/cast.rs:37:5
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44 | 1usize as f64;
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37 | 1usize as f64;
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| ^^^^^^^^^^^^^
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error: casting isize to f32 causes a loss of precision (isize is 32 or 64 bits wide, but f32's mantissa is only 23 bits wide)
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--> $DIR/cast.rs:45:5
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--> $DIR/cast.rs:38:5
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45 | 1isize as f32;
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38 | 1isize as f32;
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| ^^^^^^^^^^^^^
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error: casting usize to f32 causes a loss of precision (usize is 32 or 64 bits wide, but f32's mantissa is only 23 bits wide)
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--> $DIR/cast.rs:46:5
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--> $DIR/cast.rs:39:5
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46 | 1usize as f32;
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39 | 1usize as f32;
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| ^^^^^^^^^^^^^
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error: casting isize to i32 may truncate the value on targets with 64-bit wide pointers
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--> $DIR/cast.rs:47:5
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--> $DIR/cast.rs:40:5
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47 | 1isize as i32;
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40 | 1isize as i32;
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| ^^^^^^^^^^^^^
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error: casting isize to u32 may lose the sign of the value
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--> $DIR/cast.rs:48:5
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--> $DIR/cast.rs:41:5
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48 | 1isize as u32;
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41 | 1isize as u32;
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| ^^^^^^^^^^^^^
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error: casting isize to u32 may truncate the value on targets with 64-bit wide pointers
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--> $DIR/cast.rs:48:5
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--> $DIR/cast.rs:41:5
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48 | 1isize as u32;
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41 | 1isize as u32;
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| ^^^^^^^^^^^^^
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error: casting usize to u32 may truncate the value on targets with 64-bit wide pointers
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--> $DIR/cast.rs:50:5
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--> $DIR/cast.rs:42:5
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50 | 1usize as u32;
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42 | 1usize as u32;
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| ^^^^^^^^^^^^^
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error: casting usize to i32 may truncate the value on targets with 64-bit wide pointers
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--> $DIR/cast.rs:51:5
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--> $DIR/cast.rs:43:5
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51 | 1usize as i32;
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43 | 1usize as i32;
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| ^^^^^^^^^^^^^
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error: casting usize to i32 may wrap around the value on targets with 32-bit wide pointers
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--> $DIR/cast.rs:51:5
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--> $DIR/cast.rs:43:5
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51 | 1usize as i32;
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43 | 1usize as i32;
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| ^^^^^^^^^^^^^
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error: casting i64 to isize may truncate the value on targets with 32-bit wide pointers
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--> $DIR/cast.rs:54:5
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--> $DIR/cast.rs:45:5
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54 | 1i64 as isize;
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45 | 1i64 as isize;
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| ^^^^^^^^^^^^^
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error: casting i64 to usize may lose the sign of the value
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--> $DIR/cast.rs:55:5
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--> $DIR/cast.rs:46:5
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55 | 1i64 as usize;
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46 | 1i64 as usize;
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| ^^^^^^^^^^^^^
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error: casting i64 to usize may truncate the value on targets with 32-bit wide pointers
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--> $DIR/cast.rs:55:5
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--> $DIR/cast.rs:46:5
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55 | 1i64 as usize;
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46 | 1i64 as usize;
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| ^^^^^^^^^^^^^
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error: casting u64 to isize may truncate the value on targets with 32-bit wide pointers
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--> $DIR/cast.rs:57:5
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--> $DIR/cast.rs:47:5
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57 | 1u64 as isize;
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47 | 1u64 as isize;
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| ^^^^^^^^^^^^^
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error: casting u64 to isize may wrap around the value on targets with 64-bit wide pointers
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--> $DIR/cast.rs:57:5
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--> $DIR/cast.rs:47:5
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57 | 1u64 as isize;
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47 | 1u64 as isize;
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| ^^^^^^^^^^^^^
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error: casting u64 to usize may truncate the value on targets with 32-bit wide pointers
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--> $DIR/cast.rs:59:5
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--> $DIR/cast.rs:48:5
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59 | 1u64 as usize;
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48 | 1u64 as usize;
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| ^^^^^^^^^^^^^
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error: casting u32 to isize may wrap around the value on targets with 32-bit wide pointers
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--> $DIR/cast.rs:60:5
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--> $DIR/cast.rs:49:5
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60 | 1u32 as isize;
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49 | 1u32 as isize;
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| ^^^^^^^^^^^^^
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error: casting i32 to usize may lose the sign of the value
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--> $DIR/cast.rs:63:5
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--> $DIR/cast.rs:52:5
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63 | 1i32 as usize;
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52 | 1i32 as usize;
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| ^^^^^^^^^^^^^
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warning: casting to the same type is unnecessary (`i32` -> `i32`)
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--> $DIR/cast.rs:66:5
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--> $DIR/cast.rs:54:5
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66 | 1i32 as i32;
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54 | 1i32 as i32;
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| ^^^^^^^^^^^
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= note: #[warn(unnecessary_cast)] on by default
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warning: casting to the same type is unnecessary (`f32` -> `f32`)
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--> $DIR/cast.rs:67:5
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--> $DIR/cast.rs:55:5
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67 | 1f32 as f32;
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55 | 1f32 as f32;
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| ^^^^^^^^^^^
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= note: #[warn(unnecessary_cast)] on by default
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warning: casting to the same type is unnecessary (`bool` -> `bool`)
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--> $DIR/cast.rs:68:5
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--> $DIR/cast.rs:56:5
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68 | false as bool;
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56 | false as bool;
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| ^^^^^^^^^^^^^
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= note: #[warn(unnecessary_cast)] on by default
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