enums

package

v0.9.0 Latest Latest Go to latest Published: Aug 18, 2026 License: Apache-2.0 Imports: 3 Imported by: 0

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Package enums provides generic SQL Valuer/Scanner helpers for string-based enum types whose set of valid values is exposed via a Valid() method.

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var ErrUnexpectedScanType = errors.New("unexpected scan type")

func Scan[T Validator](src any, out *T, invalidErr error) error

Scan implements sql.Scanner. nil clears to the zero value; string and []byte are accepted and validated via Valid().

func Value[T Validator](v T, invalidErr error) (driver.Value, error)

Value implements driver.Valuer. Empty values become SQL NULL; non-empty values must satisfy v.Valid().

type Validator interface {
	~string
	Valid() bool
}

Validator is satisfied by string-based enum types that report membership in their valid set via Valid().