Enum syn::Type[−][src]

pub enum Type {
Show variants
    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
}

This is supported on crate features full or derive only.

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]

This is supported on crate feature parsing only.

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]

This is supported on crate feature clone-impls only.

`fn clone(&self) -> Self`[src]

`pub fn clone_from(&mut self, source: &Self)`1.0.0 [src]

`impl Debug for Type`[src]

This is supported on crate feature extra-traits only.

`fn fmt(&self, formatter: &mut Formatter<'_>) -> Result`[src]

`impl Eq for Type`[src]

This is supported on crate feature extra-traits only.

`impl From<TypeArray> for Type`[src]

`fn from(e: TypeArray) -> Type`[src]

`impl From<TypeBareFn> for Type`[src]

`fn from(e: TypeBareFn) -> Type`[src]

`impl From<TypeGroup> for Type`[src]

`fn from(e: TypeGroup) -> Type`[src]

`impl From<TypeImplTrait> for Type`[src]

`fn from(e: TypeImplTrait) -> Type`[src]

`impl From<TypeInfer> for Type`[src]

`fn from(e: TypeInfer) -> Type`[src]

`impl From<TypeMacro> for Type`[src]

`fn from(e: TypeMacro) -> Type`[src]

`impl From<TypeNever> for Type`[src]

`fn from(e: TypeNever) -> Type`[src]

`impl From<TypeParen> for Type`[src]

`fn from(e: TypeParen) -> Type`[src]

`impl From<TypePath> for Type`[src]

`fn from(e: TypePath) -> Type`[src]

`impl From<TypePtr> for Type`[src]

`fn from(e: TypePtr) -> Type`[src]

`impl From<TypeReference> for Type`[src]

`fn from(e: TypeReference) -> Type`[src]

`impl From<TypeSlice> for Type`[src]

`fn from(e: TypeSlice) -> Type`[src]

`impl From<TypeTraitObject> for Type`[src]

`fn from(e: TypeTraitObject) -> Type`[src]

`impl From<TypeTuple> for Type`[src]

`fn from(e: TypeTuple) -> Type`[src]

`impl Hash for Type`[src]

This is supported on crate feature extra-traits only.

`fn hash<H>(&self, state: &mut H) where H: Hasher,` [src]

`pub fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher,` 1.3.0 [src]

`impl Parse for Type`[src]

This is supported on crate feature parsing only.

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

`impl PartialEq<Type> for Type`[src]

This is supported on crate feature extra-traits only.

`fn eq(&self, other: &Self) -> bool`[src]

`#[must_use] pub fn ne(&self, other: &Rhs) -> bool`1.0.0 [src]

`impl ToTokens for Type`[src]

This is supported on crate feature printing only.

`fn to_tokens(&self, tokens: &mut TokenStream)`[src]

`pub fn to_token_stream(&self) -> TokenStream`[src]

`pub fn into_token_stream(self) -> TokenStream`[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]

`pub fn type_id(&self) -> TypeId`[src]

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

`pub fn borrow(&self) -> &T`[src]

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

`pub fn borrow_mut(&mut self) -> &mut T`[src]

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

`pub fn from(t: T) -> T`[src]

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

`pub fn into(self) -> U`[src]

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

`pub fn span(&Self) -> Span`[src]

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

`type Owned = T`

The resulting type after obtaining ownership.

`pub fn to_owned(&self) -> T`[src]

`pub fn clone_into(&self, target: &mut T)`[src]

`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.

`pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

`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.

`pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]