Function pre_validate

nodedb-crdt/src/pre_validate.rs:34–49

Pre-validate a proposed change against the leader's current state. This is called on the Control Plane before submitting to Raft. It uses the same validator but doesn't touch the DLQ — that's only for actual commit-time rejections.

(
    validator: &Validator,
    state: &CrdtState,
    change: &ProposedChange,
)

/// It uses the same validator but doesn't touch the DLQ — that's only
/// for actual commit-time rejections.
pub fn pre_validate(
    validator: &Validator,
    state: &CrdtState,
    change: &ProposedChange,
) -> PreValidationResult {
    match validator.validate(state, change) {
        ValidationOutcome::Accepted => PreValidationResult::Proceed,
        ValidationOutcome::Rejected(violations) => {
            let v = &violations[0];
            PreValidationResult::FastReject {
                constraint: v.constraint_name.clone(),
                reason: v.reason.clone(),
            }
        }
    }
}

#[cfg(test)]
mod tests {