96 lines
2.0 KiB
Rust
96 lines
2.0 KiB
Rust
#![feature(plugin)]
|
|
#![plugin(clippy)]
|
|
|
|
#[warn(cast_precision_loss, cast_possible_truncation, cast_sign_loss, cast_possible_wrap, cast_lossless)]
|
|
#[allow(no_effect, unnecessary_operation)]
|
|
fn main() {
|
|
// Test cast_precision_loss
|
|
1i32 as f32;
|
|
1i64 as f32;
|
|
1i64 as f64;
|
|
1u32 as f32;
|
|
1u64 as f32;
|
|
1u64 as f64;
|
|
// Test 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 cast_possible_wrap
|
|
1u8 as i8;
|
|
1u16 as i16;
|
|
1u32 as i32;
|
|
1u64 as i64;
|
|
1usize as isize;
|
|
// Test 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;
|
|
// Test cast_lossless with casts to floating-point types
|
|
1i8 as f32;
|
|
1i8 as f64;
|
|
1u8 as f32;
|
|
1u8 as f64;
|
|
1i16 as f32;
|
|
1i16 as f64;
|
|
1u16 as f32;
|
|
1u16 as f64;
|
|
1i32 as f64;
|
|
1u32 as f64;
|
|
// Test cast_lossless with casts from floating-point types
|
|
1.0f32 as f64;
|
|
// Test cast_lossless with an expression wrapped in parens
|
|
(1u8 + 1u8) as u16;
|
|
// Test cast_sign_loss
|
|
1i32 as u32;
|
|
1isize as usize;
|
|
// Extra checks for *size
|
|
// Casting from *size
|
|
1isize as i8;
|
|
1isize as f64;
|
|
1usize as f64;
|
|
1isize as f32;
|
|
1usize as f32;
|
|
1isize as i32;
|
|
1isize as u32;
|
|
1usize as u32;
|
|
1usize as i32;
|
|
// Casting to *size
|
|
1i64 as isize;
|
|
1i64 as usize;
|
|
1u64 as isize;
|
|
1u64 as usize;
|
|
1u32 as isize;
|
|
1u32 as usize; // Should not trigger any lint
|
|
1i32 as isize; // Neither should this
|
|
1i32 as usize;
|
|
// 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;
|
|
}
|