#macro

if-let-return

Simple macro for if let ... pattern

1 unstable release

0.1.0 Sep 12, 2018

#99 in Procedural macro helpers

Download history 17/week @ 2018-09-14 2/week @ 2018-09-21 2/week @ 2018-09-28 4/week @ 2018-10-05 2/week @ 2018-10-12 6/week @ 2018-10-19 5/week @ 2018-11-02 6/week @ 2018-11-09

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7KB

if-let-return

Simple macros for if let ....

Usage

if_let_some!

pub fn read(&self, wrapped_data: Option<&str>) -> Vec<u8> {
  let data = if let Some(data) = wrapped_data {
    data
  } else {
    return vec![];
  }

  some_function(data);

  ...
}

pub fn read(&self, wrapped_data: Option<&str>) -> Vec<u8> {
  if_let_some!(data = wrapped_data, vec![]);

  some_function(data);

  ...
}

if_let_ok!

pub fn read(&self, wrapped_data: Result<&str, Error>) -> Vec<u8> {
  let data = match wrapped_data {
    Ok(data) => data,
    Err(err) => return err.to_vec(),
  };

  some_function(data);
  ...
}

pub fn read(&self, wrapped_data: Result<&str, Error>) -> Vec<u8> {
  if_let_ok!(data = wrapped_data, |err| err.to_vec());

  some_function(data);
  ...
}

No runtime deps