16 files declare their use of FieldItemBase
- BooleanItem.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldType/ BooleanItem.php - CommentItem.php in core/
modules/ comment/ src/ Plugin/ Field/ FieldType/ CommentItem.php - DateTimeItem.php in core/
modules/ datetime/ src/ Plugin/ Field/ FieldType/ DateTimeItem.php - EmailItem.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldType/ EmailItem.php - EntityReferenceItemBase.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldType/ EntityReferenceItemBase.php - LanguageItem.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldType/ LanguageItem.php - LayoutSectionItem.php in core/
modules/ layout_builder/ src/ Plugin/ Field/ FieldType/ LayoutSectionItem.php - LinkItem.php in core/
modules/ link/ src/ Plugin/ Field/ FieldType/ LinkItem.php - ListItemBase.php in core/
modules/ options/ src/ Plugin/ Field/ FieldType/ ListItemBase.php - MapItem.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldType/ MapItem.php - NumericItemBase.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldType/ NumericItemBase.php - PathItem.php in core/
modules/ path/ src/ Plugin/ Field/ FieldType/ PathItem.php - StringItemBase.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldType/ StringItemBase.php - TelephoneItem.php in core/
modules/ telephone/ src/ Plugin/ Field/ FieldType/ TelephoneItem.php - TextItemBase.php in core/
modules/ text/ src/ Plugin/ Field/ FieldType/ TextItemBase.php - TimestampItem.php in core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldType/ TimestampItem.php