Struct OptionSpec 

pub struct OptionSpec {
    pub def: OptionDef,
    pub required: bool,
    pub default: Option<String>,
    pub value_completion: Option<ValueProvider>,
}

One option as it appears on a specific command: the shared OptionDef shape plus this command’s required-ness, default, and value completer.

Fields

def: OptionDef

The shared, parse-defining shape (flag, short, arity, value name, help).

required: bool

Whether this command requires the option. May differ per command.

default: Option<String>

Default value applied when the option is absent (value options only).

value_completion: Option<ValueProvider>

Per-command value completer (closed set, path, dynamic). The completion bridge attaches it to this command’s node. It is not part of the parse shape or the consistency audit, so it may legitimately differ between commands that share the same def.

Implementations

impl OptionSpec

pub fn new(def: OptionDef) -> Self

pub fn required(self, yes: bool) -> Self

pub fn default(self, v: impl Into<String>) -> Self

pub fn value_completion(self, provider: ValueProvider) -> Self

Attach a value completer for this option on this command.

pub fn flag(&self) -> &str

The canonical long token, e.g. "--at".

Trait Implementations

impl Clone for OptionSpec

fn clone(&self) -> OptionSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionSpec

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

Formats the value using the given formatter.