Function style::properties::apply_declarations

pub fn apply_declarations<'a, F, I>(
    device: &Device, 
    pseudo: Option<&PseudoElement>, 
    rules: &StrongRuleNode, 
    iter_declarations: F, 
    parent_style: Option<&ComputedValues>, 
    parent_style_ignoring_first_line: Option<&ComputedValues>, 
    layout_parent_style: Option<&ComputedValues>, 
    visited_style: Option<Arc<ComputedValues>>, 
    font_metrics_provider: &FontMetricsProvider, 
    flags: CascadeFlags, 
    quirks_mode: QuirksMode, 
    rule_cache: Option<&RuleCache>, 
    rule_cache_conditions: &mut RuleCacheConditions
) -> Arc<ComputedValues> where
    F: Fn() -> I,
    I: Iterator<Item = (&'a PropertyDeclaration, CascadeLevel)>, 

NOTE: This function expects the declaration with more priority to appear first.