119 lines
2.2 KiB
Rust
119 lines
2.2 KiB
Rust
// run-rustfix
|
|
#![warn(clippy::unnecessary_cast)]
|
|
#![allow(
|
|
unused_must_use,
|
|
clippy::borrow_as_ptr,
|
|
clippy::no_effect,
|
|
clippy::nonstandard_macro_braces,
|
|
clippy::unnecessary_operation
|
|
)]
|
|
|
|
#[rustfmt::skip]
|
|
fn main() {
|
|
// Test cast_unnecessary
|
|
1_i32;
|
|
1_f32;
|
|
false;
|
|
&1i32 as &i32;
|
|
|
|
-1_i32;
|
|
- 1_i32;
|
|
-1_f32;
|
|
1_i32;
|
|
1_f32;
|
|
|
|
// macro version
|
|
macro_rules! foo {
|
|
($a:ident, $b:ident) => {
|
|
#[allow(unused)]
|
|
pub fn $a() -> $b {
|
|
1 as $b
|
|
}
|
|
};
|
|
}
|
|
foo!(a, i32);
|
|
foo!(b, f32);
|
|
foo!(c, f64);
|
|
|
|
// do not lint cast to cfg-dependant type
|
|
1 as std::os::raw::c_char;
|
|
|
|
// do not lint cast to alias type
|
|
1 as I32Alias;
|
|
&1 as &I32Alias;
|
|
}
|
|
|
|
type I32Alias = i32;
|
|
|
|
mod fixable {
|
|
#![allow(dead_code)]
|
|
|
|
fn main() {
|
|
// casting integer literal to float is unnecessary
|
|
100_f32;
|
|
100_f64;
|
|
100_f64;
|
|
let _ = -100_f32;
|
|
let _ = -100_f64;
|
|
let _ = -100_f64;
|
|
100_f32;
|
|
100_f64;
|
|
// Should not trigger
|
|
#[rustfmt::skip]
|
|
let v = vec!(1);
|
|
&v as &[i32];
|
|
0x10 as f32;
|
|
0o10 as f32;
|
|
0b10 as f32;
|
|
0x11 as f64;
|
|
0o11 as f64;
|
|
0b11 as f64;
|
|
|
|
1_u32;
|
|
0x10_i32;
|
|
0b10_usize;
|
|
0o73_u16;
|
|
1_000_000_000_u32;
|
|
|
|
1.0_f64;
|
|
0.5_f32;
|
|
|
|
1.0 as u16;
|
|
|
|
let _ = -1_i32;
|
|
let _ = -1.0_f32;
|
|
|
|
let _ = 1 as I32Alias;
|
|
let _ = &1 as &I32Alias;
|
|
}
|
|
|
|
type I32Alias = i32;
|
|
|
|
fn issue_9380() {
|
|
let _: i32 = -1_i32;
|
|
let _: f32 = -(1) as f32;
|
|
let _: i64 = -1_i64;
|
|
let _: i64 = -(1.0) as i64;
|
|
|
|
let _ = -(1 + 1) as i64;
|
|
}
|
|
|
|
fn issue_9563() {
|
|
let _: f64 = (-8.0_f64).exp();
|
|
#[allow(clippy::precedence)]
|
|
let _: f64 = -8.0_f64.exp(); // should suggest `-8.0_f64.exp()` here not to change code behavior
|
|
}
|
|
|
|
fn issue_9562_non_literal() {
|
|
fn foo() -> f32 {
|
|
0.
|
|
}
|
|
|
|
let _num = foo();
|
|
}
|
|
|
|
fn issue_9603() {
|
|
let _: f32 = -0x400 as f32;
|
|
}
|
|
}
|