8c416c3197
`::from` is not a const fn, so applying the suggestion of `cast_lossless` would fail to compile. The fix is to skip the lint if the cast is found inside a const fn.
34 lines
717 B
Rust
34 lines
717 B
Rust
// run-rustfix
|
|
|
|
#![allow(clippy::no_effect, clippy::unnecessary_operation, dead_code)]
|
|
#![warn(clippy::cast_lossless)]
|
|
|
|
fn main() {
|
|
// Test clippy::cast_lossless with casts to integer types
|
|
1i8 as i16;
|
|
1i8 as i32;
|
|
1i8 as i64;
|
|
1u8 as i16;
|
|
1u8 as i32;
|
|
1u8 as i64;
|
|
1u8 as u16;
|
|
1u8 as u32;
|
|
1u8 as u64;
|
|
1i16 as i32;
|
|
1i16 as i64;
|
|
1u16 as i32;
|
|
1u16 as i64;
|
|
1u16 as u32;
|
|
1u16 as u64;
|
|
1i32 as i64;
|
|
1u32 as i64;
|
|
1u32 as u64;
|
|
}
|
|
|
|
// The lint would suggest using `f64::from(input)` here but the `XX::from` function is not const,
|
|
// so we skip the lint if the expression is in a const fn.
|
|
// See #3656
|
|
const fn abc(input: u16) -> u32 {
|
|
input as u32
|
|
}
|