Trait sentry_core::protocol::value::Index
source · pub trait Index: Sealed { }
Expand description
A type that can be used to index into a serde_json::Value
.
The get
and get_mut
methods of Value
accept any type that
implements Index
, as does the square-bracket indexing operator. This
trait is implemented for strings which are used as the index into a JSON
map, and for usize
which is used as the index into a JSON array.
This trait is sealed and cannot be implemented for types outside of
serde_json
.
§Examples
let data = json!({ "inner": [1, 2, 3] });
// Data is a JSON map so it can be indexed with a string.
let inner = &data["inner"];
// Inner is a JSON array so it can be indexed with an integer.
let first = &inner[0];
assert_eq!(first, 1);