86 lines
2.2 KiB
Rust
86 lines
2.2 KiB
Rust
//@revisions: 32bit 64bit
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//@[32bit]ignore-bitwidth: 64
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//@[64bit]ignore-bitwidth: 32
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//@no-rustfix
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#![warn(clippy::fn_to_numeric_cast, clippy::fn_to_numeric_cast_with_truncation)]
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fn foo() -> String {
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String::new()
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}
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fn test_function_to_numeric_cast() {
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let _ = foo as i8;
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//~^ fn_to_numeric_cast_with_truncation
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let _ = foo as i16;
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//~^ fn_to_numeric_cast_with_truncation
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let _ = foo as i32;
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//~[64bit]^ fn_to_numeric_cast_with_truncation
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//~[32bit]^^ fn_to_numeric_cast
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let _ = foo as i64;
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//~^ fn_to_numeric_cast
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let _ = foo as i128;
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//~^ fn_to_numeric_cast
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let _ = foo as isize;
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//~^ fn_to_numeric_cast
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let _ = foo as u8;
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//~^ fn_to_numeric_cast_with_truncation
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let _ = foo as u16;
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//~^ fn_to_numeric_cast_with_truncation
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let _ = foo as u32;
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//~[64bit]^ fn_to_numeric_cast_with_truncation
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//~[32bit]^^ fn_to_numeric_cast
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let _ = foo as u64;
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//~^ fn_to_numeric_cast
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let _ = foo as u128;
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//~^ fn_to_numeric_cast
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// Casting to usize is OK and should not warn
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let _ = foo as usize;
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// Cast `f` (a `FnDef`) to `fn()` should not warn
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fn f() {}
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let _ = f as fn();
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}
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fn test_function_var_to_numeric_cast() {
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let abc: fn() -> String = foo;
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let _ = abc as i8;
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//~^ fn_to_numeric_cast_with_truncation
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let _ = abc as i16;
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//~^ fn_to_numeric_cast_with_truncation
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let _ = abc as i32;
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//~[64bit]^ fn_to_numeric_cast_with_truncation
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//~[32bit]^^ fn_to_numeric_cast
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let _ = abc as i64;
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//~^ fn_to_numeric_cast
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let _ = abc as i128;
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//~^ fn_to_numeric_cast
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let _ = abc as isize;
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//~^ fn_to_numeric_cast
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let _ = abc as u8;
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//~^ fn_to_numeric_cast_with_truncation
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let _ = abc as u16;
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//~^ fn_to_numeric_cast_with_truncation
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let _ = abc as u32;
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//~[64bit]^ fn_to_numeric_cast_with_truncation
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//~[32bit]^^ fn_to_numeric_cast
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let _ = abc as u64;
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//~^ fn_to_numeric_cast
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let _ = abc as u128;
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//~^ fn_to_numeric_cast
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// Casting to usize is OK and should not warn
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let _ = abc as usize;
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}
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fn fn_with_fn_args(f: fn(i32) -> i32) -> i32 {
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f as i32
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//~[64bit]^ fn_to_numeric_cast_with_truncation
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//~[32bit]^^ fn_to_numeric_cast
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}
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fn main() {}
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