Struct syn::Field

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pub struct Field {
    pub attrs: Vec<Attribute>,
    pub vis: Visibility,
    pub mutability: FieldMutability,
    pub ident: Option<Ident>,
    pub colon_token: Option<Colon>,
    pub ty: Type,
}
Expand description

A field of a struct or enum variant.

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§attrs: Vec<Attribute>§vis: Visibility§mutability: FieldMutability§ident: Option<Ident>

Name of the field, if any.

Fields of tuple structs have no names.

§colon_token: Option<Colon>§ty: Type

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impl Field

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

Parses a named (braced struct) field.

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

Parses an unnamed (tuple struct) field.

Trait Implementations§

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impl Clone for Field

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl ToTokens for Field

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

Write self to the given TokenStream. Read more
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fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object. Read more
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fn into_token_stream(self) -> TokenStream
where Self: Sized,

Convert self directly into a TokenStream object. Read more

Auto Trait Implementations§

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impl Freeze for Field

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impl RefUnwindSafe for Field

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impl !Send for Field

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impl !Sync for Field

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impl Unpin for Field

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impl UnwindSafe for Field

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.