Function resolve 

pub fn resolve<'v>(value: &'v Value, path: &str) -> Result<&'v Value, FaceError>

Resolve a jq-like dotted/bracketed path against a Value.

Path grammar

• . — identity (returns the input unchanged).
• .foo.bar — nested object lookup.
• .foo[0] — array index after a key.
• .[0] — array index at the root.
• foo.bar — leading . is optional.
• .foo[0].bar[1] — index chains accepted between segments.

Errors

Returns FaceError::UnknownItemsPath when the path cannot be resolved. The variant carries the original path string so the user can identify which lookup failed; the variant choice is generic — the score path code site re-wraps to FaceError::UnknownScorePath when relevant.

Examples

use face_core::path;
use serde_json::json;

let v = json!({"data": {"path": {"text": "src/lib.rs"}}});
let leaf = path::resolve(&v, "data.path.text").unwrap();
assert_eq!(leaf, &json!("src/lib.rs"));

let identity = path::resolve(&v, ".").unwrap();
assert_eq!(identity, &v);