Struct StylesheetContentsCacheKey

pub(crate) struct StylesheetContentsCacheKey {
    stylesheet_text: Rc<Atom>,
    base_url: Atom,
    quirks_mode: QuirksMode,
}

Using Atom as a cache key to avoid inefficient string content comparison. Although the Atom is already based on reference counting, an extra Rc is introduced to trace how many style::stylesheets::Stylesheets of style elements are sharing same StylesheetContents, based on the following considerations:

• The reference count within Atom is dedicated to lifecycle management and is not suitable for tracking the number of StylesheetContentss owners.
• The reference count within Atom is not publicly acessible.

Fields

stylesheet_text: Rc<Atom>

base_url: Atom

quirks_mode: QuirksMode

Implementations

impl StylesheetContentsCacheKey

fn new(stylesheet_text: &str, base_url: &str, quirks_mode: QuirksMode) -> Self

pub(crate) fn is_uniquely_owned(&self) -> bool

Trait Implementations

impl Clone for StylesheetContentsCacheKey

fn clone(&self) -> StylesheetContentsCacheKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Hash for StylesheetContentsCacheKey

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl MallocSizeOf for StylesheetContentsCacheKey

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 PartialEq for StylesheetContentsCacheKey

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for StylesheetContentsCacheKey

impl StructuralPartialEq for StylesheetContentsCacheKey