Enum `Type`

enum Type

The possible types that a Rust value could have.

Syntax tree enum

This type is a syntax tree enum.

Variants

Array(TypeArray): A fixed size array type: [T; n].
BareFn(TypeBareFn): A bare function type: fn(usize) -> bool.
Group(TypeGroup): A type contained within invisible delimiters.
ImplTrait(TypeImplTrait): An impl Bound1 + Bound2 + Bound3 type where Bound is a trait or a lifetime.
Infer(TypeInfer): Indication that a type should be inferred by the compiler: _.
Macro(TypeMacro): A macro in the type position.
Never(TypeNever): The never type: !.
Paren(TypeParen): A parenthesized type equivalent to the inner type.
Path(TypePath): A path like std::slice::Iter, optionally qualified with a self-type as in <Vec<T> as SomeTrait>::Associated.
Ptr(TypePtr): A raw pointer type: *const T or *mut T.
Reference(TypeReference): A reference type: &'a T or &'a mut T.
Slice(TypeSlice): A dynamically sized slice type: [T].
TraitObject(TypeTraitObject): A trait object type dyn Bound1 + Bound2 + Bound3 where Bound is a trait or a lifetime.
Tuple(TypeTuple): A tuple type: (A, B, C, String).
Verbatim(proc_macro2::TokenStream): Tokens in type position not interpreted by Syn.

Implementations

`impl Type`

fn without_plus(input: ParseStream<'_>) -> Result<Self>

In some positions, types may not contain the + character, to disambiguate them. For example in the expression 1 as T, T may not contain a + character.

This parser does not allow a +, while the default parser does.

`impl Clone for Type`

fn clone(self: &Self) -> Self

`impl Debug for Type`

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

`impl Eq for Type`

`impl Freeze for Type`

`impl From for Type`

fn from(e: TypeArray) -> Type

`impl From for Type`

fn from(e: TypeMacro) -> Type

`impl From for Type`

fn from(e: TypeReference) -> Type

`impl From for Type`

fn from(e: TypeGroup) -> Type

`impl From for Type`

fn from(e: TypeParen) -> Type

`impl From for Type`

fn from(e: TypeTraitObject) -> Type

`impl From for Type`

fn from(e: TypeInfer) -> Type

`impl From for Type`

fn from(e: TypePtr) -> Type

`impl From for Type`

fn from(e: TypeBareFn) -> Type

`impl From for Type`

fn from(e: TypeNever) -> Type

`impl From for Type`

fn from(e: TypeSlice) -> Type

`impl From for Type`

fn from(e: TypeImplTrait) -> Type

`impl From for Type`

fn from(e: TypePath) -> Type

`impl From for Type`

fn from(e: TypeTuple) -> Type

`impl Hash for Type`

fn hash<H>(self: &Self, state: &mut H) where H: Hasher

`impl Parse for Type`

fn parse(input: ParseStream<'_>) -> Result<Self>

`impl PartialEq for Type`

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

`impl RefUnwindSafe for Type`

`impl Send for Type`

`impl Sync for Type`

`impl ToTokens for Type`

fn to_tokens(self: &Self, tokens: &mut TokenStream)

`impl Unpin for Type`

`impl UnsafeUnpin for Type`

`impl UnwindSafe for Type`

`impl<T> Any for Type`

fn type_id(self: &Self) -> TypeId

`impl<T> Borrow for Type`

fn borrow(self: &Self) -> &T

`impl<T> BorrowMut for Type`

fn borrow_mut(self: &mut Self) -> &mut T

`impl<T> CloneToUninit for Type`

unsafe fn clone_to_uninit(self: &Self, dest: *mut u8)

`impl<T> From for Type`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> Spanned for Type`

fn span(self: &Self) -> Span

`impl<T> ToOwned for Type`

fn to_owned(self: &Self) -> T
fn clone_into(self: &Self, target: &mut T)

`impl<T, U> Into for Type`

fn into(self: Self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom for Type`

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

`impl<T, U> TryInto for Type`

fn try_into(self: Self) -> Result<U, <U as TryFrom<T>>::Error>