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utilities.rs
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/
utilities.rs
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use std::{
ffi::OsStr,
fmt::{self, Write},
path::Path,
};
pub(super) struct JoinOsStrs<'a, T> {
pub(super) slice: &'a [T],
pub(super) delimiter: char,
}
impl<T> fmt::Display for JoinOsStrs<'_, T>
where
T: AsRef<OsStr>,
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let len = self.slice.len();
for (index, os_str) in self.slice.iter().enumerate() {
// TODO: Use OsStr::display once it is stablised,
// Path and OsStr has the same `Display` impl
write!(f, "{}", Path::new(os_str).display())?;
if index + 1 < len {
f.write_char(self.delimiter)?;
}
}
Ok(())
}
}
pub(super) struct OptionOsStrDisplay<T>(pub(super) Option<T>);
impl<T> fmt::Display for OptionOsStrDisplay<T>
where
T: AsRef<OsStr>,
{
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
// TODO: Use OsStr::display once it is stablised
// Path and OsStr has the same `Display` impl
if let Some(os_str) = self.0.as_ref() {
write!(f, "Some({})", Path::new(os_str).display())
} else {
f.write_str("None")
}
}
}