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style: Make CASCADE_PROPERTY a real static array.

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Why wasn't this done before?
This commit is contained in:
Emilio Cobos Álvarez 2016-06-30 13:23:56 -07:00
parent d3a1a4ec7d
commit 2faaf952c7
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GPG key ID: 056B727BB9C1027C
2 changed files with 17 additions and 24 deletions
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25
components/style/properties/properties.mako.rs
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@ -1275,7 +1275,7 @@ pub trait ComputedValues : Debug + Clone + Send + Sync + 'static {
fn initial_values() -> &'static Self;
fn do_cascade_property<F: FnOnce(&Vec<CascadePropertyFn<Self>>)>(f: F);
fn do_cascade_property<F: FnOnce(&[CascadePropertyFn<Self>])>(f: F);
% for style_struct in data.active_style_structs():
fn clone_${style_struct.trait_name_lower}(&self) ->
@ -1346,8 +1346,9 @@ impl ComputedValues for ServoComputedValues {
fn initial_values() -> &'static Self { &*INITIAL_SERVO_VALUES }
fn do_cascade_property<F: FnOnce(&Vec<CascadePropertyFn<Self>>)>(f: F) {
CASCADE_PROPERTY.with(|x| f(x));
#[inline]
fn do_cascade_property<F: FnOnce(&[CascadePropertyFn<Self>])>(f: F) {
f(&CASCADE_PROPERTY)
}
% for style_struct in data.active_style_structs():
@ -1747,19 +1748,11 @@ pub type CascadePropertyFn<C /*: ComputedValues */> =
cacheable: &mut bool,
error_reporter: &mut StdBox<ParseErrorReporter + Send>);
pub fn make_cascade_vec<C: ComputedValues>() -> Vec<CascadePropertyFn<C>> {
vec![
% for property in data.longhands:
longhands::${property.ident}::cascade_property,
% endfor
]
}
// This is a thread-local rather than a lazy static to avoid atomic operations when cascading
// properties.
thread_local!(static CASCADE_PROPERTY: Vec<CascadePropertyFn<ServoComputedValues>> = {
make_cascade_vec::<ServoComputedValues>()
});
static CASCADE_PROPERTY: [CascadePropertyFn<ServoComputedValues>; ${len(data.longhands)}] = [
% for property in data.longhands:
longhands::${property.ident}::cascade_property,
% endfor
];
/// Performs the CSS cascade, computing new styles for an element from its parent style and
/// optionally a cached related style. The arguments are: