dtolnay/no-panic

False-positive on an empty function, probably because of the return type

Closed this issue · 1 comments

orsinium commented 
#[no_panic]
fn parse_color(c: i32) -> Option<Gray4> {
    None
}

          
          ERROR[no-panic]: detected panic in function `parse_color`
          '
          collect2: error: ld returned 1 exit status

Where Gray4 is from embedded-graphics: https://docs.rs/embedded-graphics/0.8.1/embedded_graphics/pixelcolor/struct.Gray4.html

dtolnay commented

You'll need to apply the suggestions under https://github.com/dtolnay/no-panic#caveats (opt-level, lto, codegen-units).

  • 👍1