Macro pliron::create_error

macro_rules! create_error {
    ($loc: expr, $kind: expr, $str: literal $($t:tt)*) => { ... };
    ($loc: expr, $kind: expr, $err: expr) => { ... };
}

Specify ErrorKind and create Error from any std::error::Error object. To create Result, use create_err! instead. The macro also accepts format! like arguments to create one-off errors. It may be shorter to just use verify_error!, input_error! or arg_error! instead.