Enum RequiredMark 

pub enum RequiredMark {
    None,
    Optional,
    Default,
    Custom(Rc<dyn Fn(Element, bool) -> Element>),
}

Required mark configuration for form labels.

In Ant Design TypeScript, this can be:

• boolean (true/false)
• 'optional' (string literal)
• (labelNode, info) => ReactNode (function)

In Rust, we use an enum with a custom render function option.

Variants

None

Hide required mark (equivalent to false in TypeScript)

Optional

Show “optional” text (equivalent to 'optional' in TypeScript)

Default

Show default required mark (equivalent to true in TypeScript)

Custom(Rc<dyn Fn(Element, bool) -> Element>)

Custom render function: (label_node, required) -> Element

Trait Implementations

impl Clone for RequiredMark

fn clone(&self) -> RequiredMark

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RequiredMark

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RequiredMark

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for RequiredMark

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.