Struct EvaluationCtx

pub(crate) struct EvaluationCtx<D: Dom> {
    pub(crate) starting_node: D::Node,
    pub(crate) context_node: D::Node,
    pub(crate) predicate_ctx: Option<PredicateCtx>,
    pub(crate) resolver: Option<D::NamespaceResolver>,
}

The context during evaluation of an XPath expression.

Fields

starting_node: D::Node

Where we started at.

context_node: D::Node

The “current” node in the evaluation.

predicate_ctx: Option<PredicateCtx>

Details needed for evaluating a predicate list.

resolver: Option<D::NamespaceResolver>

A list of known namespace prefixes.

Implementations

impl<D: Dom> EvaluationCtx<D>

pub(crate) fn new( context_node: D::Node, resolver: Option<D::NamespaceResolver>, ) -> Self

Prepares the context used while evaluating the XPath expression

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

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

pub(crate) fn resolve_namespace( &self, prefix: Option<&str>, ) -> Result<Option<String>, D::JsError>

Resolve a namespace prefix using the context node’s document

Trait Implementations

impl<D: Dom> Debug for EvaluationCtx<D>

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

Formats the value using the given formatter.