Function jsonpath_rust::find_as_path

pub fn find_as_path(path: &JsonPathInst, json: &Value) -> Value

finds a path describing the value, instead of the value itself. If the values has been obtained by moving the data out of the initial json the path is absent.

** If the value has been modified during the search, there is no way to find a path of a new value. It can happen if we try to find a length() of array, for in stance.**

Example

use jsonpath_rust::{JsonPathInst, JsonPathValue};
use serde_json::{Value, json};

let data = json!({"first":{"second":[{"active":1},{"passive":1}]}});
let path = JsonPathInst::from_str("$.first.second[?(@.active)]").unwrap();
let slice_of_data: Value = jsonpath_rust::find_as_path(&path, &data);

let expected_path = "$.['first'].['second'][0]".to_string();
assert_eq!(slice_of_data, Value::Array(vec![Value::String(expected_path)]));