Struct syn::TypeNever

source · [−]

pub struct TypeNever {
    pub bang_token: Bang,
}

Expand description

The never type: !.

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

Fields

bang_token: Bang

Trait Implementations

source

impl Clone for TypeNever

source

fn clone(&self) -> Self

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

source

impl Debug for TypeNever

source

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

Formats the value using the given formatter. Read more

source

impl From<TypeNever> for Type

source

fn from(e: TypeNever) -> Type

Converts to this type from the input type.

source

impl Hash for TypeNever

source

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

Feeds this value into the given Hasher. Read more

1.3.0 · source

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

Feeds a slice of this type into the given Hasher. Read more

source

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

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

1.0.0 · source

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

This method tests for !=.

source

impl ToTokens for TypeNever

source

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

Write self to the given TokenStream. Read more

source

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object. Read more

source

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object. Read more

source

impl Eq for TypeNever

Auto Trait Implementations

impl RefUnwindSafe for TypeNever

impl !Send for TypeNever

impl !Sync for TypeNever

impl Unpin for TypeNever

impl UnwindSafe for TypeNever

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

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

source

impl<T> Spanned for T where
T: Spanned + ?Sized,

source

fn span(&self) -> Span

Returns a Span covering the complete contents of this syntax tree node, or Span::call_site() if this node is empty. Read more

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct syn::TypeNever

Fields

Trait Implementations

impl Clone for TypeNever

fn clone(&self) -> Self

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

impl Debug for TypeNever

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

impl From<TypeNever> for Type

fn from(e: TypeNever) -> Type

impl Hash for TypeNever

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

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

impl Parse for TypeNever

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

impl PartialEq<TypeNever> for TypeNever

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

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

impl ToTokens for TypeNever

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

fn to_token_stream(&self) -> TokenStream

fn into_token_stream(self) -> TokenStream

impl Eq for TypeNever

Auto Trait Implementations

impl RefUnwindSafe for TypeNever

impl !Send for TypeNever

impl !Sync for TypeNever

impl Unpin for TypeNever

impl UnwindSafe for TypeNever

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> Spanned for T where T: Spanned + ?Sized,

fn span(&self) -> Span

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

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

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

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

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

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

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> Spanned for T where
T: Spanned + ?Sized,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,