using async_trait in tuple generic param, error: lifetime may not live long enough about async-trait

[jackalchenxu]

please use special lifetime 'async_trait, instead of 'r in declaration your trait FromText
to mark out the input text is always outlive in whole parse async blocks.

here is the compilable code

[zavakid]

@jackalchenxu here I use 'r in the FromText because I want to impl for some reference, e.g. I can impl FromText for &str like below:

impl <'r> FromText<'r> for &str {
  type Output = &'r str;
  async fn parse(text: &'r Text) -> Self::Output  {
     // get string ref from text
  }
}

but how can I do above if I change the trait declaration?