validator/validation_issue library

Classes

ValidationIssue

Base contract for typed validation failures.

Typedefs

ValidationMessageResolver<TIssue extends ValidationIssue> = String Function(TIssue issue)

Maps a typed validation issue into a user-facing message.

ValidationResult<TIssue extends ValidationIssue, TValue> = Either<TIssue, TValue>

Canonical result shape for validators.