Enum Path 

pub enum Path<'a> {
    Root,
    Current,
    DotWildcard,
    RecursiveDotWildcard(Option<RecursiveLevel>),
    BracketWildcard,
    DotField(Cow<'a, str>),
    ColonField(Cow<'a, str>),
    ObjectField(Cow<'a, str>),
    ArrayIndices(Vec<ArrayIndex>),
    FilterExpr(Box<Expr<'a>>),
    Expr(Box<Expr<'a>>),
}

Represents a valid JSON Path.

Variants

Root

$ represents the root node or element.

Current

@ represents the current node or element being processed in the filter expression.

DotWildcard

.* represents selecting all elements in an Object.

RecursiveDotWildcard(Option<RecursiveLevel>)

.** represents recursive selecting all elements in Array and Object. The optional RecursiveLevel indicates the selected levels.

BracketWildcard

[*] represents selecting all elements in an Array.

DotField(Cow<'a, str>)

.<name> represents selecting element that matched the name in an Object, like $.event. The name can also be written as a string literal, allowing the name to contain special characters, like $." $price".

ColonField(Cow<'a, str>)

:<name> represents selecting element that matched the name in an Object, like $:event.

ObjectField(Cow<'a, str>)

["<name>"] represents selecting element that matched the name in an Object, like $["event"].

ArrayIndices(Vec<ArrayIndex>)

[<index1>,<index2>,..] represents selecting elements specified by the indices in an Array. There are several forms of index.

1. A single number representing the 0-based n-th element in the Array. e.g. $[0] represents the first element in an Array.
2. The keyword last represents the last element in the Array, and last minus a number represents the n-th element before the last element, e.g. $[last-1] represents the penultimate element.
3. The keyword to between two numbers represent all elements of a range in an Array, e.g. $[1 to last] represents all the elements in the Array from the second to the last.

There can be more than one index, e.g. $[0, last-1 to last, 5] represents the first, the last two, and the sixth element in an Array.

FilterExpr(Box<Expr<'a>>)

?(<expression>) represents selecting all elements in an object or array that match the filter expression, like $.book[?(@.price < 10)].

Expr(Box<Expr<'a>>)

<expression> standalone filter expression, like $.book[*].price > 10, and arithmetic expression, like -$.a[*] or $.a + 3

Trait Implementations

impl<'a> Clone for Path<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Path<'a>

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

Formats the value using the given formatter.

impl Display for Path<'_>

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

Formats the value using the given formatter.

impl<'a> PartialEq for Path<'a>

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

Equality operator ==.

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

Inequality operator !=.

impl<'a> StructuralPartialEq for Path<'a>