Enum style::matching::ChildCascadeRequirement

pub enum ChildCascadeRequirement {
    CanSkipCascade,
    MustCascadeChildrenIfInheritResetStyle,
    MustCascadeChildren,
    MustCascadeDescendants,
}

Whether or not newly computed values for an element need to be cascade to children.

Variants

CanSkipCascade

Old and new computed values were the same, or we otherwise know that we won’t bother recomputing style for children, so we can skip cascading the new values into child elements.

MustCascadeChildrenIfInheritResetStyle

The same as MustCascadeChildren, but we only need to actually recascade if the child inherits any explicit reset style.

MustCascadeChildren

Old and new computed values were different, so we must cascade the new values to children.

MustCascadeDescendants

The same as MustCascadeChildren, but for the entire subtree. This is used to handle root font-size updates needing to recascade the whole document.

Implementations

impl ChildCascadeRequirement

pub fn can_skip_cascade(&self) -> bool

Whether we can unconditionally skip the cascade.

Trait Implementations

impl Clone for ChildCascadeRequirement

fn clone(&self) -> ChildCascadeRequirement

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ChildCascadeRequirement

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

Formats the value using the given formatter.

impl Ord for ChildCascadeRequirement

fn cmp(&self, other: &ChildCascadeRequirement) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<ChildCascadeRequirement> for ChildCascadeRequirement

fn eq(&self, other: &ChildCascadeRequirement) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<ChildCascadeRequirement> for ChildCascadeRequirement

fn partial_cmp(&self, other: &ChildCascadeRequirement) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for ChildCascadeRequirement

impl Eq for ChildCascadeRequirement

impl StructuralEq for ChildCascadeRequirement

impl StructuralPartialEq for ChildCascadeRequirement