AppFlowy/frontend/rust-lib/flowy-database/src/entities/parser.rs

#[derive(Debug)]
pub struct NotEmptyStr(pub String);

impl NotEmptyStr {
  pub fn parse(s: String) -> Result<Self, String> {
    if s.trim().is_empty() {
      return Err("Input string is empty".to_owned());
    }
    Ok(Self(s))
  }
}

impl AsRef<str> for NotEmptyStr {
  fn as_ref(&self) -> &str {
    &self.0
  }
}