Struct EnumVariantDef 

pub struct EnumVariantDef {
    pub name: String,
    pub fields: Vec<Type>,
    pub field_names: Vec<String>,
}

A single variant in an enum definition.

Fields

name: String

Variant name

fields: Vec<Type>

Field types for data variants. Empty for unit variants. E.g., Some(i32) has fields = [Type::I32].

field_names: Vec<String>

Field names for struct-style variants. Empty for unit and tuple variants. When non-empty, field_names.len() == fields.len().

Implementations

impl EnumVariantDef

pub fn unit(name: impl Into<String>) -> Self

Create a unit variant (no associated data).

pub fn has_data(&self) -> bool

Whether this is a data variant (has associated fields).

pub fn is_struct_variant(&self) -> bool

Whether this is a struct-style variant (has named fields).

pub fn find_field(&self, name: &str) -> Option<usize>

Find a field by name (for struct variants). Returns the field index.

Trait Implementations

impl Clone for EnumVariantDef

fn clone(&self) -> EnumVariantDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EnumVariantDef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EnumVariantDef

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for EnumVariantDef

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

where __S: Serializer,

Serialize this value into the given Serde serializer.