Enum Selector 

pub enum Selector {
    Expr(Expr),
    Step(Key),
}

AST nodes representing selector expressions

Variants

Expr(Expr)

A conjunction or disjunction selector expression

Step(Key)

A single-step primitive selector expression

Trait Implementations

impl Clone for Selector

fn clone(&self) -> Selector

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Selector

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

Formats the value using the given formatter.

impl Display for Selector

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

Formats the value using the given formatter.

impl Hash for Selector

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 PartialEq for Selector

fn eq(&self, other: &Selector) -> 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 TryFrom<Pair<'_, Rule>> for Selector

This builds a chain of selector_components left-associatively, so the resulting expression is initially nested from the left. It then flattens them to make things a bit more consistent.

Examples:

• a.b -> a.b
• (a.b a.c), c.d -> OR!(AND!(a.b, a.c), c.d)
• c.d, (a.b a.c) -> OR!(c.d, AND!(a.b, a.c))
• a.b a.c a.d a.e -> AND!(AND!(AND!(a.b, a.c), a.d), a.e) -> AND!(a.b, a.c, a.d, a.e)

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(value: Pair<'_, Rule>) -> Result<Self, Self::Error>

Performs the conversion.

impl Eq for Selector

impl StructuralPartialEq for Selector