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Introduce ComputeSquaredDistance

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This allows us to merge the former Animatable methods compute_distance and
compute_squared_distance, reducing code size.
This commit is contained in:
Anthony Ramine 2017-08-12 17:36:52 +02:00
parent b14e68f915
commit 51b740033b
21 changed files with 641 additions and 551 deletions
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21
components/style/values/generics/mod.rs
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@ -11,6 +11,7 @@ use parser::{Parse, ParserContext};
use std::fmt;
use style_traits::{Comma, OneOrMoreSeparated, ParseError, StyleParseError, ToCss};
use super::CustomIdent;
use values::distance::{ComputeSquaredDistance, SquaredDistance};
pub mod background;
pub mod basic_shape;
@ -271,7 +272,27 @@ impl ToCss for FontSettingTagFloat {
#[cfg_attr(feature = "servo", derive(HeapSizeOf, Deserialize, Serialize))]
pub struct NonNegative<T>(pub T);
impl<T> ComputeSquaredDistance for NonNegative<T>
where
T: ComputeSquaredDistance,
{
#[inline]
fn compute_squared_distance(&self, other: &Self) -> Result<SquaredDistance, ()> {
self.0.compute_squared_distance(&other.0)
}
}
/// A wrapper of greater-than-or-equal-to-one values.
#[derive(Clone, Copy, Debug, HasViewportPercentage, PartialEq, PartialOrd, ToComputedValue, ToCss)]
#[cfg_attr(feature = "servo", derive(HeapSizeOf, Deserialize, Serialize))]
pub struct GreaterThanOrEqualToOne<T>(pub T);
impl<T> ComputeSquaredDistance for GreaterThanOrEqualToOne<T>
where
T: ComputeSquaredDistance,
{
#[inline]
fn compute_squared_distance(&self, other: &Self) -> Result<SquaredDistance, ()> {
self.0.compute_squared_distance(&other.0)
}
}