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use url::Url; use std::path::Path; pub trait ToUrl { fn to_url(self) -> Result<Url, String>; } impl<'a> ToUrl for &'a str { fn to_url(self) -> Result<Url, String> { Url::parse(self).map_err(|s| { format!("invalid url `{}`: {}", self, s) }) } } impl<'a> ToUrl for &'a Path { fn to_url(self) -> Result<Url, String> { Url::from_file_path(self).map_err(|()| { format!("invalid path url `{}`", self.display()) }) } }