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Format style component.

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chansuke 2018-09-09 16:24:45 +02:00 • committed by Emilio Cobos Álvarez
parent 31fc6cd565
commit 8dab4d659a
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120 changed files with 2207 additions and 1417 deletions
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94
components/style/media_queries/media_feature.rs
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@ -30,10 +30,9 @@ type MediaFeatureEvaluator<T> = fn(
pub type KeywordSerializer = fn(KeywordDiscriminant) -> String;
/// Parses a given identifier.
pub type KeywordParser = for <'a, 'i, 't> fn(
context: &'a ParserContext,
input: &'a mut Parser<'i, 't>,
) -> Result<KeywordDiscriminant, ParseError<'i>>;
pub type KeywordParser =
for<'a, 'i, 't> fn(context: &'a ParserContext, input: &'a mut Parser<'i, 't>)
-> Result<KeywordDiscriminant, ParseError<'i>>;
/// An evaluator for a given media feature.
///
@ -70,50 +69,49 @@ pub enum Evaluator {
/// asserts if that's not true. As of today there's nothing like that (does that
/// even make sense?).
macro_rules! keyword_evaluator {
($actual_evaluator:ident, $keyword_type:ty) => {
{
fn __parse<'i, 't>(
context: &$crate::parser::ParserContext,
input: &mut $crate::cssparser::Parser<'i, 't>,
) -> Result<
$crate::media_queries::media_feature::KeywordDiscriminant,
::style_traits::ParseError<'i>,
> {
let kw = <$keyword_type as $crate::parser::Parse>::parse(context, input)?;
Ok(kw as $crate::media_queries::media_feature::KeywordDiscriminant)
}
fn __serialize(kw: $crate::media_queries::media_feature::KeywordDiscriminant) -> String {
// This unwrap is ok because the only discriminants that get
// back to us is the ones that `parse` produces.
let value: $keyword_type =
::num_traits::cast::FromPrimitive::from_u8(kw).unwrap();
<$keyword_type as ::style_traits::ToCss>::to_css_string(&value)
}
fn __evaluate(
device: &$crate::media_queries::Device,
value: Option<$crate::media_queries::media_feature::KeywordDiscriminant>,
range_or_operator: Option<$crate::media_queries::media_feature_expression::RangeOrOperator>,
) -> bool {
debug_assert!(
range_or_operator.is_none(),
"Since when do keywords accept ranges?"
);
// This unwrap is ok because the only discriminants that get
// back to us is the ones that `parse` produces.
let value: Option<$keyword_type> =
value.map(|kw| ::num_traits::cast::FromPrimitive::from_u8(kw).unwrap());
$actual_evaluator(device, value)
}
$crate::media_queries::media_feature::Evaluator::Enumerated {
parser: __parse,
serializer: __serialize,
evaluator: __evaluate,
}
($actual_evaluator:ident, $keyword_type:ty) => {{
fn __parse<'i, 't>(
context: &$crate::parser::ParserContext,
input: &mut $crate::cssparser::Parser<'i, 't>,
) -> Result<
$crate::media_queries::media_feature::KeywordDiscriminant,
::style_traits::ParseError<'i>,
> {
let kw = <$keyword_type as $crate::parser::Parse>::parse(context, input)?;
Ok(kw as $crate::media_queries::media_feature::KeywordDiscriminant)
}
}
fn __serialize(kw: $crate::media_queries::media_feature::KeywordDiscriminant) -> String {
// This unwrap is ok because the only discriminants that get
// back to us is the ones that `parse` produces.
let value: $keyword_type = ::num_traits::cast::FromPrimitive::from_u8(kw).unwrap();
<$keyword_type as ::style_traits::ToCss>::to_css_string(&value)
}
fn __evaluate(
device: &$crate::media_queries::Device,
value: Option<$crate::media_queries::media_feature::KeywordDiscriminant>,
range_or_operator: Option<
$crate::media_queries::media_feature_expression::RangeOrOperator,
>,
) -> bool {
debug_assert!(
range_or_operator.is_none(),
"Since when do keywords accept ranges?"
);
// This unwrap is ok because the only discriminants that get
// back to us is the ones that `parse` produces.
let value: Option<$keyword_type> =
value.map(|kw| ::num_traits::cast::FromPrimitive::from_u8(kw).unwrap());
$actual_evaluator(device, value)
}
$crate::media_queries::media_feature::Evaluator::Enumerated {
parser: __parse,
serializer: __serialize,
evaluator: __evaluate,
}
}};
}
bitflags! {
@ -169,7 +167,7 @@ macro_rules! feature {
evaluator: $evaluator,
requirements: $reqs,
}
}
};
}
impl fmt::Debug for MediaFeatureDescription {