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//@stderr-per-bitwidth
//@no-rustfix
#![warn(clippy::fn_to_numeric_cast, clippy::fn_to_numeric_cast_with_truncation)]
fn foo() -> String {
String::new()
}
fn test_function_to_numeric_cast() {
let _ = foo as i8;
let _ = foo as i16;
let _ = foo as i32;
let _ = foo as i64;
let _ = foo as i128;
let _ = foo as isize;
let _ = foo as u8;
let _ = foo as u16;
let _ = foo as u32;
let _ = foo as u64;
let _ = foo as u128;
// Casting to usize is OK and should not warn
let _ = foo as usize;
// Cast `f` (a `FnDef`) to `fn()` should not warn
fn f() {}
let _ = f as fn();
}
fn test_function_var_to_numeric_cast() {
let abc: fn() -> String = foo;
let _ = abc as i8;
let _ = abc as i16;
let _ = abc as i32;
let _ = abc as i64;
let _ = abc as i128;
let _ = abc as isize;
let _ = abc as u8;
let _ = abc as u16;
let _ = abc as u32;
let _ = abc as u64;
let _ = abc as u128;
// Casting to usize is OK and should not warn
let _ = abc as usize;
}
fn fn_with_fn_args(f: fn(i32) -> i32) -> i32 {
f as i32
}
fn main() {}
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