Struct DomTokenListMut 

pub struct DomTokenListMut<'a, Ext: 'static> { /* private fields */ }

Mutable handle to an element’s class tokens. Holds a NodeMut so mutations route through the existing class-set machinery (add_class / remove_class / replace_class), keeping cascade dirty-tracking and the per-class index in sync.

Implementations

impl<'a, Ext: 'static> DomTokenListMut<'a, Ext>

pub fn new(node: NodeMut<'a, Ext>) -> Self

Construct from a borrowed NodeMut. The mutable list shares the node’s lifetime — drop the list to release the borrow.

pub fn add(&mut self, token: &str) -> Result<()>

Add token to the class set. Idempotent — no-op if the token is already present. DOM add.

pub fn remove(&mut self, token: &str) -> Result<bool>

Remove token from the class set. Returns true iff a token was actually removed (false when the token wasn’t present). DOM remove.

pub fn toggle(&mut self, token: &str, force: Option<bool>) -> Result<bool>

Toggle token with optional force.

• force = Some(true) → ensure present; returns true.
• force = Some(false) → ensure absent; returns false.
• force = None → flip; returns the post-flip presence.

DOM toggle(token, force).

pub fn replace(&mut self, old: &str, new: &str) -> Result<bool>

Replace old with new. Returns true iff the replacement happened (i.e., old was present). DOM replace(old, new).

pub fn supports(&self, _token: &str) -> bool

true iff token is in the supported-token list for this attribute. DOM spec only defines this for specific element-attribute pairs (<link>.relList, <iframe>.sandbox, …); for classList and everything else rdom doesn’t track, returns false. DOM supports.

pub fn contains(&self, token: &str) -> bool

Borrow the current token set without releasing the NodeMut.

pub fn len(&self) -> usize

Number of tokens currently on the element. DOM length.

pub fn is_empty(&self) -> bool

true iff the element has no class tokens.