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attr: impl Debug for Attributes manually

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show key value pairs instead of internal structure
This commit is contained in:
Noah Hellman 2023-03-26 17:05:50 +02:00
parent 122cb84d2d
commit f31398a796
1 changed files with 16 additions and 1 deletions
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17
src/attr.rs
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@ -98,7 +98,7 @@ impl<'s> Iterator for AttributeValueParts<'s> {
// Attributes are relatively rare, we choose to pay 8 bytes always and sometimes an extra // Attributes are relatively rare, we choose to pay 8 bytes always and sometimes an extra
// indirection instead of always 24 bytes. // indirection instead of always 24 bytes.
#[allow(clippy::box_vec)] #[allow(clippy::box_vec)]
#[derive(Debug, Clone, PartialEq, Eq, Default)] #[derive(Clone, PartialEq, Eq, Default)]
pub struct Attributes<'s>(Option<Box<Vec<(&'s str, AttributeValue<'s>)>>>); pub struct Attributes<'s>(Option<Box<Vec<(&'s str, AttributeValue<'s>)>>>);
impl<'s> Attributes<'s> { impl<'s> Attributes<'s> {
@ -202,6 +202,21 @@ impl<'s> FromIterator<(&'s str, &'s str)> for Attributes<'s> {
} }
} }
impl<'s> std::fmt::Debug for Attributes<'s> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{{")?;
let mut first = true;
for (k, v) in self.iter() {
if !first {
write!(f, ", ")?;
}
first = false;
write!(f, "{}=\"{}\"", k, v.raw)?;
}
write!(f, "}}")
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)] #[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum State { enum State {
Start, Start,