Struct FieldMeta 

pub struct FieldMeta {

    pub name: String,
    pub json_name: String,
    pub kind: FieldKind,
    pub description: String,
    pub required: bool,
    pub secret: bool,
    pub validate: String,
    pub rules: Vec<VRule>,
    pub enum_values: Vec<Value>,
    pub default: Option<Value>,
    pub skip: bool,
    pub cli: CliField,
    pub http: HTTPField,
    pub mcp: MCPField,
    pub elem: Option<Box<FieldMeta>>,
    pub children: Vec<FieldMeta>,
    pub union: Option<UnionMeta>,
}

运行时字段元数据（FieldSpec 解析 + Define-time hints 合并的产物）。

Fields

name: String

json_name: String

kind: FieldKind

description: String

required: bool

secret: bool

validate: String

rules: Vec<VRule>

enum_values: Vec<Value>

已解析的 typed 枚举值（仅标量）。

default: Option<Value>

已解析的 typed 全局默认；None 表示无默认。

skip: bool

cli: CliField

http: HTTPField

mcp: MCPField

elem: Option<Box<FieldMeta>>

Ptr/Slice 的元素元数据。

children: Vec<FieldMeta>

struct 的子字段。

union: Option<UnionMeta>

联合的运行时树（kind == Union 时填充；变体字段表）。

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.