Struct StyleSourceBorrow 

pub struct StyleSourceBorrow<'a>(ArcBorrow<'a, Locked<PropertyDeclarationBlock>>);

A borrowed version of StyleSource.

This is what we use during selector matching, so that we only need to touch the refcount of the declarations when we actually insert them in the rule tree.

Tuple Fields

0: ArcBorrow<'a, Locked<PropertyDeclarationBlock>>

Implementations

impl<'a> StyleSourceBorrow<'a>

pub fn from_declarations( decls: ArcBorrow<'a, Locked<PropertyDeclarationBlock>>, ) -> Self

Creates a borrowed style source from a borrowed declaration block.

pub fn to_owned(&self) -> StyleSource

Creates an owned style source from this borrow, bumping the refcount.

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

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

where 'a: 'b,

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

Trait Implementations

impl<'a> Clone for StyleSourceBorrow<'a>

fn clone(&self) -> StyleSourceBorrow<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for StyleSourceBorrow<'a>

impl<'a> Debug for StyleSourceBorrow<'a>

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

Formats the value using the given formatter.

impl<'a> MallocSizeOf for StyleSourceBorrow<'a>

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl<'a> PartialEq for StyleSourceBorrow<'a>

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

Equality operator ==.

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

Inequality operator !=.