Struct EvaluationCtx

pub(crate) struct EvaluationCtx {
    pub(crate) starting_node: DomRoot<Node>,
    pub(crate) context_node: DomRoot<Node>,
    pub(crate) predicate_ctx: Option<PredicateCtx>,
    pub(crate) predicate_nodes: Option<Vec<DomRoot<Node>>>,
    pub(crate) resolver: Option<Rc<XPathNSResolver<DomTypeHolder>>>,
}

The context during evaluation of an XPath expression.

Fields

starting_node: DomRoot<Node>

Where we started at.

context_node: DomRoot<Node>

The “current” node in the evaluation.

predicate_ctx: Option<PredicateCtx>

Details needed for evaluating a predicate list.

predicate_nodes: Option<Vec<DomRoot<Node>>>

The nodes we’re currently matching against.

resolver: Option<Rc<XPathNSResolver<DomTypeHolder>>>

A list of known namespace prefixes.

Implementations

impl EvaluationCtx

pub(crate) fn new( context_node: &Node, resolver: Option<Rc<XPathNSResolver<DomTypeHolder>>>, ) -> EvaluationCtx

Prepares the context used while evaluating the XPath expression

pub(crate) fn subcontext_for_node(&self, node: &Node) -> EvaluationCtx

Creates a new context using the provided node as the context node

pub(crate) fn update_predicate_nodes(&self, nodes: Vec<&Node>) -> EvaluationCtx

pub(crate) fn subcontext_iter_for_nodes(&self) -> EvalNodesetIter<'_>

pub(crate) fn resolve_namespace( &self, prefix: Option<&str>, can_gc: CanGc, ) -> Fallible<Option<DOMString>>

Resolve a namespace prefix using the context node’s document

Trait Implementations

impl Debug for EvaluationCtx

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

Formats the value using the given formatter.