Struct style::context::CascadeInputs

pub struct CascadeInputs {
    pub rules: Option<StrongRuleNode>,
    pub visited_rules: Option<StrongRuleNode>,
    pub flags: ComputedValueFlags,
}

The structure holds various intermediate inputs that are eventually used by by the cascade.

The matching and cascading process stores them in this format temporarily within the CurrentElementInfo. At the end of the cascade, they are folded down into the main ComputedValues to reduce memory usage per element while still remaining accessible.

Fields

rules: Option<StrongRuleNode>

The rule node representing the ordered list of rules matched for this node.

visited_rules: Option<StrongRuleNode>

The rule node representing the ordered list of rules matched for this node if visited, only computed if there’s a relevant link for this element. A element’s “relevant link” is the element being matched if it is a link or the nearest ancestor link.

flags: ComputedValueFlags

The set of flags from container queries that we need for invalidation.

Implementations

impl CascadeInputs

pub fn new_from_style(style: &ComputedValues) -> Self

Construct inputs from previous cascade results, if any.

Trait Implementations

impl Clone for CascadeInputs

fn clone(&self) -> CascadeInputs

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CascadeInputs

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CascadeInputs

fn default() -> CascadeInputs

Returns the “default value” for a type.