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style: Allow parsing nested calc() expressions.

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Emilio Cobos Álvarez 2017-05-03 20:58:24 +02:00
parent ed7686b42c
commit cd43331963
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3 changed files with 5 additions and 3 deletions
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4
components/style/values/specified/length.rs
View file

@ -843,6 +843,10 @@ impl CalcLengthOrPercentage {
input.parse_nested_block(|i| CalcLengthOrPercentage::parse_sum(context, i, expected_unit)) input.parse_nested_block(|i| CalcLengthOrPercentage::parse_sum(context, i, expected_unit))
.map(|result| CalcValueNode::Sum(Box::new(result))) .map(|result| CalcValueNode::Sum(Box::new(result)))
}, },
(Token::Function(ref name), _) if name.eq_ignore_ascii_case("calc") => {
input.parse_nested_block(|i| CalcLengthOrPercentage::parse_sum(context, i, expected_unit))
.map(|result| CalcValueNode::Sum(Box::new(result)))
}
_ => Err(()) _ => Err(())
} }
} }

1
tests/unit/style/parsing/length.rs
View file

@ -16,6 +16,7 @@ use style_traits::ToCss;
#[test] #[test]
fn test_calc() { fn test_calc() {
assert!(parse(Length::parse, "calc(1px+ 2px)").is_err()); assert!(parse(Length::parse, "calc(1px+ 2px)").is_err());
assert!(parse(Length::parse, "calc(calc(1px) + calc(1px + 4px))").is_ok());
assert!(parse(Length::parse, "calc( 1px + 2px )").is_ok()); assert!(parse(Length::parse, "calc( 1px + 2px )").is_ok());
assert!(parse(Length::parse, "calc(1px + 2px )").is_ok()); assert!(parse(Length::parse, "calc(1px + 2px )").is_ok());
assert!(parse(Length::parse, "calc( 1px + 2px)").is_ok()); assert!(parse(Length::parse, "calc( 1px + 2px)").is_ok());

3
tests/wpt/metadata-css/css-values-3_dev/html/calc-in-calc.htm.ini
View file

@ -1,3 +0,0 @@
[calc-in-calc.htm]
type: reftest
expected: FAIL