Struct style::rule_tree::source::StyleSource

pub struct StyleSource(Arc<Locked<PropertyDeclarationBlock>>);

A style source for the rule node. It is a declaration block that may come from either a style rule or a standalone block like animations / transitions / smil / preshints / style attr…

Keeping the style rule around would provide more debugability, but also causes more pointer-chasing in the common code-path, which is undesired. If needed, we could keep it around in debug builds or something along those lines.

Tuple Fields

0: Arc<Locked<PropertyDeclarationBlock>>

Implementations

impl StyleSource

pub(super) fn key(&self) -> NonNull<()>

pub fn from_declarations(decls: Arc<Locked<PropertyDeclarationBlock>>) -> Self

Creates a StyleSource from a PropertyDeclarationBlock.

pub(super) fn dump<W: Write>( &self, guard: &SharedRwLockReadGuard<'_>, writer: &mut W, )

pub fn read<'a>( &'a self, guard: &'a SharedRwLockReadGuard<'_>, ) -> &'a PropertyDeclarationBlock

Read the style source guard, and obtain thus read access to the underlying property declaration block.

pub fn get(&self) -> &Arc<Locked<PropertyDeclarationBlock>>

Returns the declaration block if applicable, otherwise None.

Trait Implementations

impl Clone for StyleSource

fn clone(&self) -> StyleSource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StyleSource

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

Formats the value using the given formatter.

impl PartialEq for StyleSource

fn eq(&self, other: &Self) -> 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.