Enum rsonpath_lib::query::JsonPathQueryNode

pub enum JsonPathQueryNode {
    Root(Option<Box<JsonPathQueryNode>>),
    Child(Label, Option<Box<JsonPathQueryNode>>),
    Descendant(Label, 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(Label, Option<Box<JsonPathQueryNode>>)

Represents direct descendant (‘.’ token).

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

Represents recursive descent (‘..’ token).

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_child(&self) -> bool

Returns true iff the type is JsonPathQueryNode::Child.

fn label(&self) -> Option<&Label>

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