Struct derive_utils::EnumData

pub struct EnumData { /* fields omitted */ }

A structure to make trait implementation to enums more efficient.

Methods

impl EnumData

pub fn new<E: MaybeEnum>(maybe_enum: &E) -> Result<Self>

Constructs a new EnumData.

pub fn make_impl<'a>(&'a self) -> Result<EnumImpl<'a>>

Constructs a new EnumImpl.

pub fn impl_with_capacity<'a>(&'a self, capacity: usize) -> Result<EnumImpl<'a>>

Constructs a new EnumImpl with the specified capacity..

pub fn make_impl_trait<'a, I>(
    &'a self,
    trait_path: Path,
    supertraits_types: I,
    item: ItemTrait
) -> Result<EnumImpl<'a>> where
    I: IntoIterator<Item = Ident>,
    I::IntoIter: ExactSizeIterator, 

Constructs a new EnumImpl from ItemTrait.

TraitItem::Method that has the first argument other than the following is error:

• &self
• &mut self
• self
• mut self
• self: Pin<&Self>
• self: Pin<&mut Self>

The following items are ignored:

• Generic associated types (GAT) (TraitItem::Method that has generics)
• TraitItem::Const
• TraitItem::Macro
• TraitItem::Verbatim

pub fn impl_trait_with_capacity<'a, I>(
    &'a self,
    capacity: usize,
    trait_path: Path,
    supertraits_types: I,
    item: ItemTrait
) -> Result<EnumImpl<'a>> where
    I: IntoIterator<Item = Ident>,
    I::IntoIter: ExactSizeIterator, 

Constructs a new EnumImpl from ItemTrait with the specified capacity.

See EnumData::make_impl_trait for supported item types.

pub const fn ident(&self) -> &Ident

pub const fn generics(&self) -> &Generics

pub fn variants(&self) -> &[Ident]

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