Enum Segment 

pub enum Segment {
    LongHand(Vec<Selector>),
    DotName(String),
    Wildcard,
}

Represents the different forms of SPath segment.

Variants

LongHand(Vec<Selector>)

Long hand segments contain multiple selectors inside square brackets.

DotName(String)

Dot-name selectors are a short form for representing keys in an object.

Wildcard

The wildcard shorthand .*.

Implementations

impl Segment

pub fn is_singular(&self) -> bool

Whether this segment extracts at most a singular node.

pub fn as_long_hand(&self) -> Option<&[Selector]>

Optionally produce self as a slice of selectors, from a long hand segment.

pub fn as_dot_name(&self) -> Option<&str>

Optionally produce self as a single name segment.

Trait Implementations

impl Clone for Segment

fn clone(&self) -> Segment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Segment

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

Formats the value using the given formatter.

impl Display for Segment

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

Formats the value using the given formatter.

impl Queryable for Segment

fn query<'b, T: VariantValue, Registry: FunctionRegistry<Value = T>>( &self, current: &'b T, root: &'b T, registry: &Registry, ) -> Vec<&'b T>

Run the query over a current node with a root node.

fn query_located<'b, T: VariantValue, Registry: FunctionRegistry<Value = T>>( &self, current: &'b T, root: &'b T, registry: &Registry, parent: NormalizedPath<'b>, ) -> Vec<LocatedNode<'b, T>>

Run the query over a current node with a root node and a parent path.