Struct FieldMeta 

pub struct FieldMeta {
    pub label: Option<Cow<'static, str>>,
    pub description: Option<Cow<'static, str>>,
    pub placeholder: Option<Cow<'static, str>>,
    pub extra: Vec<(Cow<'static, str>, Value)>,
}

UI-facing metadata slots (DV-3); unknown extras survive round-trips.

Fields

label: Option<Cow<'static, str>>

Short display label.

description: Option<Cow<'static, str>>

Longer description.

placeholder: Option<Cow<'static, str>>

Input placeholder text.

extra: Vec<(Cow<'static, str>, Value)>

Extensible key-value extras for UI layers.

Trait Implementations

impl Clone for FieldMeta

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldMeta

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

Formats the value using the given formatter.

impl Default for FieldMeta

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for FieldMeta

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FieldMeta