Enum Arg 

pub enum Arg {
    String(String, bool),
    Expr(Expr),
    Parts(Vec<ArgPart>),
}

A command argument — either an expandable string or an expression.

Variants

String(String, bool)

Expandable string. The bool indicates whether the argument was quoted in the source (true) or unquoted (false). Quoted arguments that start with -- are positional, not flags.

Expr(Expr)

Expression — resolved at runtime via evaluate_expr.

Parts(Vec<ArgPart>)

Mixed literal/expression value (e.g. KEY={{ $x }} tail). Fragments resolve independently at runtime and concatenate with no added separator — inter-fragment gaps are already materialized as Text.

Implementations

impl Arg

pub fn as_str(&self) -> &str

pub fn render(&self) -> String

Owned display form: String verbatim, Expr as source ($x), Parts as fragment concatenation. Used for diagnostics and Display; runtime resolution must match on variants instead (see resolve_arg).

pub fn is_quoted(&self) -> bool

Trait Implementations

impl AsRef<str> for Arg

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Arg

fn clone(&self) -> Arg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Arg

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

Formats the value using the given formatter.

impl Display for Arg

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

Formats the value using the given formatter.

impl From<&str> for Arg

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<String> for Arg

fn from(s: String) -> Self

Converts to this type from the input type.

impl PartialEq for Arg

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<&str> for Arg

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<str> for Arg

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Arg