rustc_driver_impl

Function warn_on_confusing_output_filename_flag

Source 
pub(crate) fn warn_on_confusing_output_filename_flag(
    early_dcx: &EarlyDiagCtxt,
    matches: &Matches,
    args: &[String],
)
Expand description

Warn if -o is used without a space between the flag name and the value and the value is a high-value confusables, e.g. -optimize instead of -o optimize, see issue #142812.