[][src]Enum syn::Fields

pub enum Fields {
    Named(FieldsNamed),
    Unnamed(FieldsUnnamed),
    Unit,
}

Data stored within an enum variant or struct.

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

Named(FieldsNamed)

Named fields of a struct or struct variant such as Point { x: f64, y: f64 }.

Unnamed(FieldsUnnamed)

Unnamed fields of a tuple struct or tuple variant such as Some(T).

Unit

Unit struct or unit variant such as None.

Methods

impl Fields[src]

pub fn iter(&self) -> Iter<Field>[src]

Get an iterator over the borrowed Field items in this object. This iterator can be used to iterate over a named or unnamed struct or variant's fields uniformly.

pub fn iter_mut(&mut self) -> IterMut<Field>[src]

Get an iterator over the mutably borrowed Field items in this object. This iterator can be used to iterate over a named or unnamed struct or variant's fields uniformly.

pub fn len(&self) -> usize[src]

Returns the number of fields.

pub fn is_empty(&self) -> bool[src]

Returns true if there are zero fields.

Trait Implementations

impl Clone for Fields[src]

impl Debug for Fields[src]

impl Eq for Fields[src]

impl From<FieldsNamed> for Fields[src]

impl From<FieldsUnnamed> for Fields[src]

impl Hash for Fields[src]

impl IntoIterator for Fields[src]

type Item = Field

The type of the elements being iterated over.

type IntoIter = IntoIter<Field>

Which kind of iterator are we turning this into?

impl<'a> IntoIterator for &'a Fields[src]

type Item = &'a Field

The type of the elements being iterated over.

type IntoIter = Iter<'a, Field>

Which kind of iterator are we turning this into?

impl<'a> IntoIterator for &'a mut Fields[src]

type Item = &'a mut Field

The type of the elements being iterated over.

type IntoIter = IterMut<'a, Field>

Which kind of iterator are we turning this into?

impl PartialEq<Fields> for Fields[src]

impl StructuralEq for Fields[src]

impl StructuralPartialEq for Fields[src]

impl ToTokens for Fields[src]

Auto Trait Implementations

impl !RefUnwindSafe for Fields

impl !Send for Fields

impl !Sync for Fields

impl Unpin for Fields

impl UnwindSafe for Fields

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<I> IntoIterator for I where
    I: Iterator
[src]

type Item = <I as Iterator>::Item

The type of the elements being iterated over.

type IntoIter = I

Which kind of iterator are we turning this into?

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.