Struct CliFieldHint 

pub struct CliFieldHint {
    pub shorthand: Option<String>,
    pub positional: bool,
    pub hidden: bool,
    pub skip: bool,
    pub env_var: Option<String>,
    pub default: Option<Value>,
}

Define 期的 CLI 字段级配置。

Fields

shorthand: Option<String>

单字符短名，如 ‘a’。

positional: bool

hidden: bool

skip: bool

对 CLI 前端不可见（属性等价物：cli = “-”）。

env_var: Option<String>

未显式提供时回退到这个环境变量。

default: Option<Value>

CLI-only 默认值；对 CLI 前端覆盖全局 default 属性。

Trait Implementations

impl Clone for CliFieldHint

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 CliFieldHint

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

Formats the value using the given formatter.

impl Default for CliFieldHint

fn default() -> Self

Returns the “default value” for a type.