What happened?

Failed to compile generated validation file in pkg/apis/core/v1 for zz_generated.validation.go

Causes:

1. optional and required can only take in comparable type. e.g.

   kubernetes/pkg/apis/core/v1/zz_generated.validations.go

   Line 384 in a2e6b49

   if e := validate.Optional(opCtx, fldPath, obj, oldObj); len(e) != 0 {

   , where "corev1.NodeAffinity" is non-comparable
2. optional and required validation may take in non-pointer variable, e.g. []string:

   kubernetes/pkg/apis/core/v1/zz_generated.validations.go

   Lines 671 to 675 in a2e6b49

   	func(obj, oldObj []corev1.Capability, fldPath *field.Path) (errs field.ErrorList) {
   	if e := validate.Optional(opCtx, fldPath, obj, oldObj); len(e) != 0 {
   	return // do not proceed
   	}
   	return

3. No validation is generated for metav1 e.g.

   kubernetes/pkg/apis/core/v1/zz_generated.validations.go

   Line 1076 in a2e6b49

   errs = append(errs, metav1.Validate_ListMeta(opCtx, obj, oldObj, fldPath)...)

4. The validation input should be a pointer for the safe.Field e.g.

   kubernetes/pkg/apis/core/v1/zz_generated.validations.go

   Line 138 in a2e6b49

   return Validate_NodeStatus(opCtx, &root.Status, safe.Field(safe.Cast[*corev1.Node](oldObj), func(oldObj *corev1.Node) corev1.NodeStatus { return oldObj.Status }), nil)

What did you expect to happen?

Successfully compiled.

How can we reproduce it (as minimally and precisely as possible)?

go build ./pkg/apis/core/v1  

Anything else we need to know?

No response

Kubernetes version

$ kubectl version
# paste output here

Cloud provider

OS version

# On Linux:
$ cat /etc/os-release
# paste output here
$ uname -a
# paste output here

# On Windows:
C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
# paste output here

Install tools

Container runtime (CRI) and version (if applicable)

Related plugins (CNI, CSI, ...) and versions (if applicable)