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style: Create a NonNegativePercentage type in values:specified

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Differential Revision: https://phabricator.services.mozilla.com/D109285
This commit is contained in:
Oriol Brufau 2023-05-16 10:53:25 +02:00
parent 3b2eef3d7d
commit 4d4fb4b414
2 changed files with 15 additions and 1 deletions
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2
components/style/values/specified/mod.rs
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@ -71,7 +71,7 @@ pub use self::list::Quotes;
pub use self::motion::{OffsetPath, OffsetRotate};
pub use self::outline::OutlineStyle;
pub use self::page::{Orientation, PageSize, PaperSize};
pub use self::percentage::Percentage;
pub use self::percentage::{Percentage, NonNegativePercentage};
pub use self::position::AspectRatio;
pub use self::position::{
GridAutoFlow, GridTemplateAreas, MasonryAutoFlow, Position, PositionOrAuto,

14
components/style/values/specified/percentage.rs
View file

@ -7,6 +7,7 @@
use crate::parser::{Parse, ParserContext};
use crate::values::computed::percentage::Percentage as ComputedPercentage;
use crate::values::computed::{Context, ToComputedValue};
use crate::values::generics::NonNegative;
use crate::values::specified::calc::CalcNode;
use crate::values::specified::Number;
use crate::values::{serialize_percentage, CSSFloat};
@ -172,3 +173,16 @@ impl ToComputedValue for Percentage {
}
impl SpecifiedValueInfo for Percentage {}
/// A wrapper of Percentage, whose value must be >= 0.
pub type NonNegativePercentage = NonNegative<Percentage>;
impl Parse for NonNegativePercentage {
#[inline]
fn parse<'i, 't>(
context: &ParserContext,
input: &mut Parser<'i, 't>,
) -> Result<Self, ParseError<'i>> {
Ok(NonNegative(Percentage::parse_non_negative(context, input)?))
}
}