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#![allow(dead_code)]
#![warn(clippy::cast_lossless)]
fn main() {
// Test clippy::cast_lossless with casts to integer types
let _ = u8::from(true);
let _ = u16::from(true);
let _ = u32::from(true);
let _ = u64::from(true);
let _ = u128::from(true);
let _ = usize::from(true);
let _ = i8::from(true);
let _ = i16::from(true);
let _ = i32::from(true);
let _ = i64::from(true);
let _ = i128::from(true);
let _ = isize::from(true);
// Test with an expression wrapped in parens
let _ = u16::from(true | false);
}
// The lint would suggest using `u32::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: bool) -> u32 {
input as u32
}
// Same as the above issue. We can't suggest `::from` in const fns in impls
mod cast_lossless_in_impl {
struct A;
impl A {
pub const fn convert(x: bool) -> u64 {
x as u64
}
}
}
#[clippy::msrv = "1.27"]
fn msrv_1_27() {
let _ = true as u8;
}
#[clippy::msrv = "1.28"]
fn msrv_1_28() {
let _ = u8::from(true);
}
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