Enum Args 

pub enum Args {
    None,
    Char(char),
    String(String),
    Bytes(Vec<u8>),
    List(Vec<ArgValue>),
}

The concrete argument values carried by a CommandInvocation. See the module docs for when each shape is used.

Examples

use lattice_grammar::{ArgKind, ArgValue, Args};

// `fx` -- a motion that takes one char.
let f = Args::Char('x');
assert!(!f.is_none());
assert!(f.as_list().is_none());

// A structured ex-command: positional values in `args_schema` order.
let s = Args::List(vec![
    ArgValue::Pattern("foo".into()),
    ArgValue::String("bar".into()),
    ArgValue::Bool(true),
]);
let list = s.as_list().unwrap();
assert_eq!(list[0].kind(), ArgKind::Pattern);
assert_eq!(list[0].as_str(), Some("foo"));
assert_eq!(list[2].as_bool(), Some(true));

assert!(Args::default().is_none());

Variants

None

No arguments – most motions and operators.

Char(char)

A single char: f<c>, t<c>, r<c>, m<c>, '<c>.

String(String)

A single free-form string (:set <opt>, :e <path>).

Bytes(Vec<u8>)

Opaque plugin-defined payload; see the module docs.

List(Vec<ArgValue>)

Multi-arg form. Values appear in the order declared by the command’s args_schema.

Implementations

impl Args

pub fn is_none(&self) -> bool

true for Args::None only (an empty Args::List is not None).

pub fn as_list(&self) -> Option<&[ArgValue]>

Borrow the multi-arg list, if present. Returns None for any other variant.

Trait Implementations

impl Clone for Args

fn clone(&self) -> Args

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Args

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

Formats the value using the given formatter.

impl Default for Args

fn default() -> Args

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Args

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Args

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Args

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Args