language · language ·
Nullable types
A ? suffix declares a nullable reference-like value, but the complete flow analysis is not in the Kyber product path yet.
Use only when deliberately running the comparison oracle. In Kyber-ready code, model absence explicitly with a bool, enum, or sentinel thing.
Type? name = nullStatus: generated-cpp-only
Complete nullable types example
Use only when deliberately running the comparison oracle. In Kyber-ready code, model absence explicitly with a bool, enum, or sentinel thing.
cpu · language · type checked
class Pilot { text name = "Nova" }
Pilot? selected = null
if selected == null { Console.Log("Choose a pilot") }
project.mech
manifestVersion = "2"
package = "api.example.language__nullable_values"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"
[app]
kind = "headless"
Notes and source
Nullable reference flow is classified generated-C++ only in the 2026.1 conformance manifest.
Do not present parser acceptance as native product support.
yeho/docs/language/conformance-2026.1.json: nullable-reference-flow