| 45 | } |
| 46 | |
| 47 | fn visit_length(&mut self, length: &Length) { |
| 48 | enum ResolvedType { |
| 49 | UnitlessZero, |
| 50 | UnitedZero, |
| 51 | Resolved(f32), |
| 52 | Unresolved, |
| 53 | } |
| 54 | |
| 55 | let resolved = match length { |
| 56 | Length::Zero(_) => ResolvedType::UnitlessZero, |
| 57 | _ if Into::<f32>::into(*length) == 0.0 => ResolvedType::UnitedZero, |
| 58 | _ => { |
| 59 | if let Some(px) = length.to_px() { |
| 60 | ResolvedType::Resolved(px) |
| 61 | } else { |
| 62 | ResolvedType::Unresolved |
| 63 | } |
| 64 | } |
| 65 | }; |
| 66 | |
| 67 | let can_reduce_to_unitless = self.unitless_zero_resolves.get() == UnitlessZeroResolves::Length; |
| 68 | |
| 69 | if can_reduce_to_unitless && matches!(resolved, ResolvedType::UnitedZero | ResolvedType::Resolved(0.0)) { |
| 70 | self.transformer.replace(length, self.transformer.parse_value::<Length>("0")); |
| 71 | } else if let ResolvedType::Resolved(px) = resolved { |
| 72 | let replacement = bumpalo::format!(in self.transformer.bump(), "{}px", px); |
| 73 | let original_span = length.to_span(); |
| 74 | let original_len = (original_span.end().0 - original_span.start().0) as usize; |
| 75 | if replacement.len() <= original_len { |
| 76 | self.transformer.replace(length, self.transformer.parse_value::<Length>(replacement.into_bump_str())); |
| 77 | } |
| 78 | } |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | #[cfg(test)] |