Enum syn::Type[][src]

pub enum Type {
    Array(TypeArray),
    BareFn(TypeBareFn),
    Group(TypeGroup),
    ImplTrait(TypeImplTrait),
    Infer(TypeInfer),
    Macro(TypeMacro),
    Never(TypeNever),
    Paren(TypeParen),
    Path(TypePath),
    Ptr(TypePtr),
    Reference(TypeReference),
    Slice(TypeSlice),
    TraitObject(TypeTraitObject),
    Tuple(TypeTuple),
    Verbatim(TokenStream),
    // some variants omitted
}

The possible types that a Rust value could have.

This type is available only if Syn is built with the "derive" or "full" feature.

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 Bound1 + Bound2 + Bound3 where Bound is a trait or a lifetime.

Tuple(TypeTuple)

A tuple type: (A, B, C, String).

Verbatim(TokenStream)

Tokens in type position not interpreted by Syn.

Implementations

impl Type[src]

pub fn without_plus(input: ParseStream<'_>) -> Result<Self>[src]

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.

Trait Implementations

impl Clone for Type[src]

impl Debug for Type[src]

impl Eq for Type[src]

impl From<TypeArray> for Type[src]

impl From<TypeBareFn> for Type[src]

impl From<TypeGroup> for Type[src]

impl From<TypeImplTrait> for Type[src]

impl From<TypeInfer> for Type[src]

impl From<TypeMacro> for Type[src]

impl From<TypeNever> for Type[src]

impl From<TypeParen> for Type[src]

impl From<TypePath> for Type[src]

impl From<TypePtr> for Type[src]

impl From<TypeReference> for Type[src]

impl From<TypeSlice> for Type[src]

impl From<TypeTraitObject> for Type[src]

impl From<TypeTuple> for Type[src]

impl Hash for Type[src]

impl Parse for Type[src]

impl PartialEq<Type> for Type[src]

impl ToTokens for Type[src]

Auto Trait Implementations

impl RefUnwindSafe for Type

impl !Send for Type

impl !Sync for Type

impl Unpin for Type

impl UnwindSafe for Type

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> Spanned for T where
    T: Spanned + ?Sized
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.