Module strict 

Available on crate feature versioned only.

Strict-decoding support: reject out-of-schema (Unknown) enum values anywhere in a deserialized payload. See Bo4eStrict and strict::StrictError. Strict-decoding support for BO4E payloads.

Every BO4E enum carries an Unknown forward-compatibility catch-all, so the lenient serde deserialization path never fails on an unrecognized wire value — it maps to Unknown. That is the right default for forward-compatibility, but the wrong default at an ingest boundary that must reject typos, legacy codes, or values from a newer schema.

The Bo4eStrict trait — implemented by every generated BO, COM, enum, and by AnyBo — walks a value recursively and reports the JSON-path of every enum field that decoded to Unknown. This turns the MaKo “round-trip as validation” pattern into an actually-strict one:

use rubo4e::{Bo4eStrict, current::Messlokation};

// `sparte` carries a value this schema version does not define.
let body = r#"{"messlokationsId":"DE0123456789012345678901234567890","sparte":"PLASMA"}"#;
let melo: Messlokation = serde_json::from_str(body).unwrap();  // lenient decode

// One call finds it, wherever it sits in the tree:
let err = melo.ensure_known_enums().unwrap_err();
assert_eq!(err.paths, ["sparte"]);

One call replaces the hand-written field == T::Unknown checks scattered across every handler.

Structs

StrictError

The set of JSON-paths at which a payload holds an out-of-schema (Unknown) enum value, produced by Bo4eStrict::ensure_known_enums.

Functions

extension_pathjson

Joins an extension key onto a parent JSON-path.

field_path

Joins a child field name onto a parent JSON-path.

index_path

Joins an array index onto a parent JSON-path (parent[i]).