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Don't use inherited custom properties for substitution

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This commit is contained in:
Xidorn Quan 2017-09-28 19:46:53 +10:00
parent 01adcf69d7
commit dba19f53f5
1 changed files with 6 additions and 13 deletions
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19
components/style/custom_properties.rs
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@ -503,7 +503,7 @@ pub fn finish_cascade(specified_values_map: Option<OrderedMap<&Name, BorrowedSpe
-> Option<Arc<CustomPropertiesMap>> {
if let Some(mut map) = specified_values_map {
remove_cycles(&mut map);
Some(Arc::new(substitute_all(map, inherited)))
Some(Arc::new(substitute_all(map)))
} else {
inherited.clone()
}
@ -555,8 +555,7 @@ fn remove_cycles(map: &mut OrderedMap<&Name, BorrowedSpecifiedValue>) {
}
/// Replace `var()` functions for all custom properties.
fn substitute_all(specified_values_map: OrderedMap<&Name, BorrowedSpecifiedValue>,
inherited: &Option<Arc<CustomPropertiesMap>>)
fn substitute_all(specified_values_map: OrderedMap<&Name, BorrowedSpecifiedValue>)
-> CustomPropertiesMap {
let mut custom_properties_map = CustomPropertiesMap::new();
let mut invalid = HashSet::new();
@ -566,7 +565,7 @@ fn substitute_all(specified_values_map: OrderedMap<&Name, BorrowedSpecifiedValue
// If this value is invalid at computed-time it won’t be inserted in computed_values_map.
// Nothing else to do.
let _ = substitute_one(
name, value, &specified_values_map, inherited, None,
name, value, &specified_values_map, None,
&mut custom_properties_map, &mut invalid);
}
@ -580,7 +579,6 @@ fn substitute_all(specified_values_map: OrderedMap<&Name, BorrowedSpecifiedValue
fn substitute_one(name: &Name,
specified_value: &BorrowedSpecifiedValue,
specified_values_map: &OrderedMap<&Name, BorrowedSpecifiedValue>,
inherited: &Option<Arc<CustomPropertiesMap>>,
partial_computed_value: Option<&mut ComputedValue>,
custom_properties_map: &mut CustomPropertiesMap,
invalid: &mut HashSet<Name>)
@ -604,7 +602,7 @@ fn substitute_one(name: &Name,
&mut input, &mut position, &mut partial_computed_value,
&mut |name, partial_computed_value| {
if let Some(other_specified_value) = specified_values_map.get(&name) {
substitute_one(name, other_specified_value, specified_values_map, inherited,
substitute_one(name, other_specified_value, specified_values_map,
Some(partial_computed_value), custom_properties_map, invalid)
} else {
Err(())
@ -615,13 +613,8 @@ fn substitute_one(name: &Name,
partial_computed_value.push_from(position, &input, last_token_type);
partial_computed_value
} else {
// Invalid at computed-value time. Use the inherited value.
if let Some(inherited_value) = inherited.as_ref().and_then(|i| i.values.get(name)) {
inherited_value.clone()
} else {
invalid.insert(name.clone());
return Err(())
}
invalid.insert(name.clone());
return Err(())
}
} else {
// The specified value contains no var() reference