Enum Selector

pub enum Selector {
    Name(JsonString),
    Wildcard,
    Index(Index),
    Slice(Slice),
    Filter(LogicalExpr),
}

Each Segment defines one or more selectors. A selector produces one or more children/descendants of the node it is applied to.

Variants

Name(JsonString)

A name selector selects at most one object member value under the key equal to the selector’s JsonString.

Wildcard

A wildcard selector selects the nodes of all children of an object or array.

Index(Index)

An index selector matches at most one array element value, depending on the selector’s Index.

Slice(Slice)

A slice selector matches elements from arrays starting at a given index, ending at a given index, and incrementing with a specified step.

Filter(LogicalExpr)

A filter selector matches members/elements which satisfy the given LogicalExpr.

Implementations

impl Selector

pub const fn is_name(&self) -> bool

Check if this is a name selector.

Examples

let selector = Selector::Name(JsonString::new("abc"));
assert!(selector.is_name());

pub const fn is_wildcard(&self) -> bool

Check if this is a wildcard selector.

Examples

let selector = Selector::Wildcard;
assert!(selector.is_wildcard());

pub const fn is_index(&self) -> bool

Check if this is an index selector.

Examples

let selector = Selector::Index(Index::FromStart(0.into()));
assert!(selector.is_index());

pub const fn is_slice(&self) -> bool

Check if this is a slice selector.

Examples

let selector = Selector::Slice(Slice::default());
assert!(selector.is_slice());

pub const fn is_filter(&self) -> bool

Check if this is a filter selector.

Examples

let selector = Selector::Filter(LogicalExpr::Test(TestExpr::Relative(JsonPathQuery::from_iter(vec![]))));
assert!(selector.is_filter());

Trait Implementations

impl<'arbitrary> Arbitrary<'arbitrary> for Selector

fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

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<'de> Deserialize<'de> for Selector

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Selector

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

Formats the value using the given formatter.

impl From<Index> for Selector

fn from(value: Index) -> Self

Converts to this type from the input type.

impl From<JsonString> for Selector

fn from(value: JsonString) -> Self

Converts to this type from the input type.

impl From<LogicalExpr> for Selector

fn from(value: LogicalExpr) -> Self

Converts to this type from the input type.

impl From<Slice> for Selector

fn from(value: Slice) -> Self

Converts to this type from the input type.

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 Serialize for Selector

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Selector

impl StructuralPartialEq for Selector