Struct Enum 

pub struct Enum { /* private fields */ }

(enumeration feature) Accepts a value drawn from a fixed allow-list. The allowed values may be of any type, and are compared by equality (no coercion).

Implementations

impl Enum

pub fn with_meta(self, meta: Meta) -> Self

Attach human-facing metadata (name, description, examples, default, output conversion).

pub fn new(values: impl IntoIterator<Item = Value>) -> Self

Build from the allowed values, e.g. Enum::new([Value::Int(1), Value::Int(2)]).

pub fn case_insensitive(self) -> Self

Compare string values ignoring ASCII case (no effect on other types).

Trait Implementations

impl Clone for Enum

fn clone(&self) -> Enum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Enum

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

Formats the value using the given formatter.

impl Default for Enum

fn default() -> Enum

Returns the “default value” for a type.

impl Validator for Enum

fn meta(&self) -> &Meta

This validator’s human-facing metadata.

fn meta_mut(&mut self) -> &mut Meta

Mutable access to this validator’s metadata (backs the WithMeta builder setters).

fn check(&self, value: &mut Value) -> Result<(), Error>

The validation rule: check (and coerce) value in place.

fn validate(&self, value: &mut Value) -> Result<(), Error>

Run check; on error attach this validator’s Meta (innermost wins); on success apply the output conversion in meta().convert, if any.