Enum syn::Fields [−][src]
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 struct or unit variant such as None
.
Implementations
impl Fields
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pub fn iter(&self) -> Iter<'_, Field>ⓘ
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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>ⓘ
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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
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Returns the number of fields.
pub fn is_empty(&self) -> bool
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Returns true
if there are zero fields.
Trait Implementations
impl Clone for Fields
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fn clone(&self) -> Self
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Debug for Fields
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impl Eq for Fields
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impl From<FieldsNamed> for Fields
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fn from(e: FieldsNamed) -> Fields
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impl From<FieldsUnnamed> for Fields
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fn from(e: FieldsUnnamed) -> Fields
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impl Hash for Fields
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fn hash<H>(&self, state: &mut H) where
H: Hasher,
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H: Hasher,
pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl IntoIterator for Fields
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type Item = Field
The type of the elements being iterated over.
type IntoIter = IntoIter<Field>
Which kind of iterator are we turning this into?
fn into_iter(self) -> Self::IntoIter
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impl<'a> IntoIterator for &'a Fields
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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?
fn into_iter(self) -> Self::IntoIter
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impl<'a> IntoIterator for &'a mut Fields
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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?
fn into_iter(self) -> Self::IntoIter
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impl PartialEq<Fields> for Fields
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impl ToTokens for Fields
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fn to_tokens(&self, tokens: &mut TokenStream)
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pub fn to_token_stream(&self) -> TokenStream
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pub fn into_token_stream(self) -> TokenStream
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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,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Spanned for T where
T: Spanned + ?Sized,
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T: Spanned + ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
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>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,