Enum syn::Type

[+] Show declaration

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

[−] Expand description

The possible types that a Rust value could have.

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

Syntax tree enum

This type is a syntax tree enum.

Variants

Slice(TypeSlice)

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A dynamically sized slice type: [T].

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

Array(TypeArray)

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A fixed size array type: [T; n].

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

Ptr(TypePtr)

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A raw pointer type: *const T or *mut T.

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

Reference(TypeReference)

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A reference type: &'a T or &'a mut T.

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

BareFn(TypeBareFn)

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A bare function type: fn(usize) -> bool.

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

Never(TypeNever)

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The never type: !.

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

Tuple(TypeTuple)

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

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

Path(TypePath)

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A path like std::slice::Iter, optionally qualified with a self-type as in <Vec<T> as SomeTrait>::Associated.

Type arguments are stored in the Path itself.

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

TraitObject(TypeTraitObject)

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

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

ImplTrait(TypeImplTrait)

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

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

Paren(TypeParen)

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A parenthesized type equivalent to the inner type.

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

Group(TypeGroup)

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A type contained within invisible delimiters.

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

Infer(TypeInfer)

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Indication that a type should be inferred by the compiler: _.

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

Macro(TypeMacro)

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A macro in the type position.

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

Verbatim(TypeVerbatim)

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Tokens in type position not interpreted by Syn.

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

Methods

impl Type

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pub fn without_plus(i: Cursor) -> PResult<Self>

Trait Implementations

impl Synom for Type

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fn parse(i: Cursor) -> PResult<Self>

fn description() -> Option<&'static str>

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A short name of the type being parsed.

impl PartialEq<Type> for Type

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

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This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Type) -> bool

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This method tests for !=.

impl Clone for Type

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fn clone(&self) -> Type

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Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

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Performs copy-assignment from source.

impl From<Type> for FnArg

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fn from(e: Type) -> FnArg

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Performs the conversion.

impl From<TypeSlice> for Type

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fn from(e: TypeSlice) -> Type

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Performs the conversion.

impl From<TypeArray> for Type

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fn from(e: TypeArray) -> Type

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Performs the conversion.

impl From<TypePtr> for Type

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fn from(e: TypePtr) -> Type

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Performs the conversion.

impl From<TypeReference> for Type

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fn from(e: TypeReference) -> Type

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Performs the conversion.

impl From<TypeBareFn> for Type

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fn from(e: TypeBareFn) -> Type

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Performs the conversion.

impl From<TypeNever> for Type

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fn from(e: TypeNever) -> Type

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Performs the conversion.

impl From<TypeTuple> for Type

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fn from(e: TypeTuple) -> Type

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Performs the conversion.

impl From<TypePath> for Type

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fn from(e: TypePath) -> Type

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Performs the conversion.

impl From<TypeTraitObject> for Type

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fn from(e: TypeTraitObject) -> Type

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Performs the conversion.

impl From<TypeImplTrait> for Type

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fn from(e: TypeImplTrait) -> Type

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Performs the conversion.

impl From<TypeParen> for Type

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fn from(e: TypeParen) -> Type

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Performs the conversion.

impl From<TypeGroup> for Type

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fn from(e: TypeGroup) -> Type

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Performs the conversion.

impl From<TypeInfer> for Type

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fn from(e: TypeInfer) -> Type

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Performs the conversion.

impl From<TypeMacro> for Type

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fn from(e: TypeMacro) -> Type

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Performs the conversion.

impl From<TypeVerbatim> for Type

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fn from(e: TypeVerbatim) -> Type

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Performs the conversion.

impl Eq for Type

impl Debug for Type

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fn fmt(&self, f: &mut Formatter) -> Result

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Formats the value using the given formatter.

impl Hash for Type

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fn hash<__H: Hasher>(&self, state: &mut __H)

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Feeds this value into the given [Hasher].

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

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Feeds a slice of this type into the given [Hasher].

impl ToTokens for Type

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

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Write self to the given TokenStream.

fn into_token_stream(self) -> TokenStream

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Convert self directly into a TokenStream object.