For example, in the following code, body property is declared like in protocol, declared but not defined.
@available(iOS 13.0, macOS 10.15, tvOS 13.0, watchOS 6.0, *)
public struct List<SelectionValue, Content> : View where SelectionValue : Hashable, Content : View {
/// Creates a list with the given content that supports selecting multiple
/// rows.
///
/// On iOS and tvOS, you must explicitly put the list into edit mode for
/// the selection to apply. To do that, either add an ``EditButton`` to
/// your user interface, or modify the ``EnvironmentValues/editMode``
/// value directly.
///
/// - Parameters:
/// - selection: A binding to a set that identifies selected rows.
/// - content: The content of the list.
@available(watchOS, unavailable)
public init(selection: Binding<Set<SelectionValue>>?, @ViewBuilder content: () -> Content)
/// Creates a list with the given content that supports selecting a single
/// row.
///
/// On iOS and tvOS, you must explicitly put the list into edit mode for
/// the selection to apply. To do that, either add an ``EditButton`` to
/// your user interface, or modify the ``EnvironmentValues/editMode``
/// value directly.
///
/// - Parameters:
/// - selection: A binding to a selected row.
/// - content: The content of the list.
@available(watchOS, unavailable)
public init(selection: Binding<SelectionValue?>?, @ViewBuilder content: () -> Content)
/// The content of the list.
public var body: some View { get }
/// The type of view representing the body of this view.
///
/// When you create a custom view, Swift infers this type from your
/// implementation of the required ``View/body-swift.property`` property.
public typealias Body = some View
}
When I do this, the code won't compile, for example:
struct TestStruct {
var body: String {get}
}
Thanks.
