akkurate-core/dev.nesk.akkurate.constraints.builders/isNotInstanceOf

isNotInstanceOf

inline fun <T> Validatable<*>.isNotInstanceOf(): Constraint

The validatable value must not be an instance of type parameter R when this constraint is applied.

Code example:

val validate = Validator<Any> { isNotInstanceOf<String>() }
validate(123) // Success
validate("foo") // Failure (message: Must not be an instance of "kotlin.String")