rust/tests/ui/cast.rs
2018-08-29 11:08:29 -07:00

47 lines
1.1 KiB
Rust

#![feature(tool_lints)]
#[warn(clippy::cast_precision_loss, clippy::cast_possible_truncation, clippy::cast_sign_loss, clippy::cast_possible_wrap, clippy::cast_lossless)]
#[allow(clippy::no_effect, clippy::unnecessary_operation)]
fn main() {
// Test clippy::cast_precision_loss
1i32 as f32;
1i64 as f32;
1i64 as f64;
1u32 as f32;
1u64 as f32;
1u64 as f64;
// Test clippy::cast_possible_truncation
1f32 as i32;
1f32 as u32;
1f64 as f32;
1i32 as i8;
1i32 as u8;
1f64 as isize;
1f64 as usize;
// Test clippy::cast_possible_wrap
1u8 as i8;
1u16 as i16;
1u32 as i32;
1u64 as i64;
1usize as isize;
// Test clippy::cast_lossless with casts from floating-point types
1.0f32 as f64;
// Test clippy::cast_lossless with an expression wrapped in parens
(1u8 + 1u8) as u16;
// Test clippy::cast_sign_loss
1i32 as u32;
1isize as usize;
// Extra checks for *size
// Test cast_unnecessary
1i32 as i32;
1f32 as f32;
false as bool;
&1i32 as &i32;
// Should not trigger
let v = vec!(1);
&v as &[i32];
1.0 as f64;
1 as u64;
}