Enum syntex_syntax2::ast::VariantData

pub enum VariantData {
    Struct(Vec<StructField>, NodeId),
    Tuple(Vec<StructField>, NodeId),
    Unit(NodeId),
}

Fields and Ids of enum variants and structs

For enum variants: NodeId represents both an Id of the variant itself (relevant for all variant kinds) and an Id of the variant's constructor (not relevant for Struct-variants). One shared Id can be successfully used for these two purposes. Id of the whole enum lives in Item.

For structs: NodeId represents an Id of the structure's constructor, so it is not actually used for Struct-structs (but still presents). Structures don't have an analogue of "Id of the variant itself" from enum variants. Id of the whole struct lives in Item.

Variants

Struct(Vec<StructField>, NodeId)

Struct variant.

E.g. Bar { .. } as in enum Foo { Bar { .. } }

Tuple(Vec<StructField>, NodeId)

Tuple variant.

E.g. Bar(..) as in enum Foo { Bar(..) }

Unit(NodeId)

Unit variant.

E.g. Bar = .. as in enum Foo { Bar = .. }

Methods

impl VariantData

pub fn fields(&self) -> &[StructField]

pub fn id(&self) -> NodeId

pub fn is_struct(&self) -> bool

pub fn is_tuple(&self) -> bool

pub fn is_unit(&self) -> bool

Trait Implementations

impl Eq for VariantData

impl PartialEq<VariantData> for VariantData

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Clone for VariantData

fn clone(&self) -> VariantData

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Hash for VariantData

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Debug for VariantData

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

Formats the value using the given formatter.

impl Serialize for VariantData

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

Serialize this value into the given Serde serializer.

impl<'de> Deserialize<'de> for VariantData

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.