Function json_values_differ

src/disk.rs:986–998

Order-aware comparison of two JSON values. Unlike `JsonValue::eq`, this treats objects with different key order as different, matching serialisation behaviour.

(a: &JsonValue, b: &JsonValue)

/// treats objects with different key order as different, matching
/// serialisation behaviour.
fn json_values_differ(a: &JsonValue, b: &JsonValue) -> bool {
  match (a, b) {
    (JsonValue::Object(a), JsonValue::Object(b)) => {
      a.len() != b.len()
        || a
          .iter()
          .zip(b.iter())
          .any(|((k1, v1), (k2, v2))| k1 != k2 || json_values_differ(v1, v2))
    }
    (JsonValue::Array(a), JsonValue::Array(b)) => a.len() != b.len() || a.iter().zip(b.iter()).any(|(a, b)| json_values_differ(a, b)),
    _ => a != b,
  }
}

/// Get-or-create the child mapping at `key`, replacing any non-mapping value
/// already there. The returned reference borrows `map`.