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Derive ComputeSquaredDistance

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This commit is contained in:
Anthony Ramine 2017-08-13 00:50:36 +02:00
parent 51b740033b
commit 277351da35
22 changed files with 162 additions and 391 deletions
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20
components/style/values/generics/position.rs
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@ -5,11 +5,9 @@
//! Generic types for CSS handling of specified and computed values of
//! [`position`](https://drafts.csswg.org/css-backgrounds-3/#position)
use values::distance::{ComputeSquaredDistance, SquaredDistance};
#[derive(Clone, Copy, Debug, HasViewportPercentage, PartialEq, ToComputedValue)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
/// A generic type for representing a CSS [position](https://drafts.csswg.org/css-values/#position).
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
#[derive(Clone, ComputeSquaredDistance, Copy, Debug, HasViewportPercentage, PartialEq, ToComputedValue)]
pub struct Position<H, V> {
/// The horizontal component of position.
pub horizontal: H,
@ -26,17 +24,3 @@ impl<H, V> Position<H, V> {
}
}
}
impl<H, V> ComputeSquaredDistance for Position<H, V>
where
H: ComputeSquaredDistance,
V: ComputeSquaredDistance,
{
#[inline]
fn compute_squared_distance(&self, other: &Self) -> Result<SquaredDistance, ()> {
Ok(
self.horizontal.compute_squared_distance(&other.horizontal)? +
self.vertical.compute_squared_distance(&other.vertical)?,
)
}
}