Enum CommandArg 

pub enum CommandArg {
    Literal(Value),
    Label(String),
}

A parsed constraint command argument, preserving the literal kind from the grammar rule command_arg: { number_literal | boolean_literal | text_literal | label }.

Two grammatical kinds appear after a constraint command:

• Literal — a fully-typed value carrying the literal kind the parser recognised (Number, Ratio, Scale, Duration, Date, Time, Boolean, Text). Stored as the canonical crate::literals::Value so downstream consumers match on the variant rather than re-parsing strings.
• Label — a bare identifier used as a name (e.g. the unit name eur in unit eur 1.00, or a primitive type keyword used as an option label).

Planning validates each command’s args against the variant kinds it accepts and rejects mismatches without coercion (a Text literal is never a Number, a Ratio literal is never a bare Number, etc.).

Variants

Literal(Value)

A typed literal value parsed by [crate::parsing::parser::Parser::parse_literal_value].

Label(String)

An identifier used as a name (unit name, option keyword, etc.).

Trait Implementations

impl Clone for CommandArg

fn clone(&self) -> CommandArg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CommandArg

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CommandArg

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for CommandArg

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

Formats the value using the given formatter.

impl PartialEq for CommandArg

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for CommandArg

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for CommandArg

impl StructuralPartialEq for CommandArg