How about a "trace" macro ?

[wakuflair]

Please complete the following tasks

• I have searched the discussions
• I have searched the open and rejected issues

winnow version

0.6.20

Describe your use case

I found myself always need to surround my parser in trace function, so why don't we add a "trace" macro to make us more lazy?

Describe the solution you'd like

Something like:

#[trace]
fn my_parser(input: I) -> PResult<O> {
  ...
}

will be expanded to:

fn my_parser(input: I) -> PResult<O> {
  trace("my_parser", move |input: &mut _| {
   ...
  }).parse_next(input)
}

Alternatives, if applicable

No response

Additional Context

No response

[epage]

I'm trying to hold off on having proc macros. There is an RFC for attribute macro-by-example. That would allow us to support a #[winnow::trace] macro.