Enum rsonpath::query::JsonPathQueryNode

pub enum JsonPathQueryNode {
    Root(Option<Box<JsonPathQueryNode>>),
    Child(JsonString, Option<Box<JsonPathQueryNode>>),
    AnyChild(Option<Box<JsonPathQueryNode>>),
    Descendant(JsonString, Option<Box<JsonPathQueryNode>>),
    AnyDescendant(Option<Box<JsonPathQueryNode>>),
    ArrayIndexChild(NonNegativeArrayIndex, Option<Box<JsonPathQueryNode>>),
    ArrayIndexDescendant(NonNegativeArrayIndex, Option<Box<JsonPathQueryNode>>),
}

Linked list structure of a JSONPath query.

Variants

Root(Option<Box<JsonPathQueryNode>>)

The first link in the list representing the root ‘$’ character.

Child(JsonString, Option<Box<JsonPathQueryNode>>)

Represents direct descendant with a given property name (‘.’ token).

AnyChild(Option<Box<JsonPathQueryNode>>)

Represents direct descendant with a wildcard (‘.*’ tokens).

Descendant(JsonString, Option<Box<JsonPathQueryNode>>)

Represents recursive descent (‘..’ token).

AnyDescendant(Option<Box<JsonPathQueryNode>>)

Represents recursive descendant with a wildcard (‘..*’ tokens).

ArrayIndexChild(NonNegativeArrayIndex, Option<Box<JsonPathQueryNode>>)

Represents direct descendant list item with a positive index (numbers).

ArrayIndexDescendant(NonNegativeArrayIndex, Option<Box<JsonPathQueryNode>>)

Represents recursive descendant with an array index (‘..[n]’ tokens).

Implementations

impl JsonPathQueryNode

pub fn child(&self) -> Option<&Self>

Retrieve the child of the node or None if it is the last one on the list.

pub fn iter(&self) -> JsonPathQueryIterator<'_>

Create an iterator over nodes of the query in sequence, starting from the root.

Trait Implementations

impl Debug for JsonPathQueryNode

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

Formats the value using the given formatter.

impl Display for JsonPathQueryNode

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

Formats the value using the given formatter.

impl JsonPathQueryNodeType for JsonPathQueryNode

fn is_root(&self) -> bool

Returns true iff the type is JsonPathQueryNode::Root.

fn is_descendant(&self) -> bool

Returns true iff the type is JsonPathQueryNode::Descendant.

fn is_any_descendant(&self) -> bool

Returns true iff the type is JsonPathQueryNode::AnyDescendant.

fn is_child(&self) -> bool

Returns true iff the type is JsonPathQueryNode::Child.

fn is_any_child(&self) -> bool

Returns true iff the type is JsonPathQueryNode::AnyChild.

fn member_name(&self) -> Option<&JsonString>

If the type is JsonPathQueryNode::Descendant or JsonPathQueryNode::Child returns the member name it represents; otherwise, None.

fn array_index(&self) -> Option<&NonNegativeArrayIndex>

If the type is JsonPathQueryNode::ArrayIndexDescendant or JsonPathQueryNode::ArrayIndexChild returns the index it represents; otherwise, None.

impl PartialEq<JsonPathQueryNode> for JsonPathQueryNode

fn eq(&self, other: &JsonPathQueryNode) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for JsonPathQueryNode

impl StructuralEq for JsonPathQueryNode

impl StructuralPartialEq for JsonPathQueryNode