Struct derive_utils::EnumImpl

pub struct EnumImpl<'a> { /* private fields */ }

A builder for implementing a trait for enums.

Implementations

impl<'a> EnumImpl<'a>

pub fn new(data: &'a EnumData) -> Self

Creates a new EnumImpl.

pub fn from_trait<I>( data: &'a EnumData, trait_path: &Path, supertraits_types: I, trait_def: ItemTrait ) -> Self

where I: IntoIterator<Item = Ident>, I::IntoIter: ExactSizeIterator,

Creates a new EnumImpl from a trait definition.

The following items are ignored:

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

Panics

Panics if a trait method has a body, no receiver, or a receiver other than the following:

• &self
• &mut self
• self

pub fn set_trait(&mut self, path: Path)

pub fn push_generic_param(&mut self, param: GenericParam)

Appends a generic type parameter to the back of generics.

pub fn push_where_predicate(&mut self, predicate: WherePredicate)

Appends a predicate to the back of where-clause.

pub fn push_item(&mut self, item: ImplItem)

Appends an item to impl items.

pub fn push_method(&mut self, item: TraitItemFn)

Appends a method to impl items.

Panics

Panics if a trait method has a body, no receiver, or a receiver other than the following:

• &self
• &mut self
• self

pub fn append_items_from_trait(&mut self, trait_def: ItemTrait)

Appends items from a trait definition to impl items.

Panics

Panics if a trait method has a body, no receiver, or a receiver other than the following:

• &self
• &mut self
• self

pub fn build(self) -> TokenStream

pub fn build_impl(self) -> ItemImpl