pub struct PatField {
pub ident: Ident,
pub pat: P<Pat>,
pub is_shorthand: bool,
pub attrs: AttrVec,
pub id: NodeId,
pub span: Span,
pub is_placeholder: bool,
}
Expand description
A single field in a struct pattern.
Patterns like the fields of Foo { x, ref y, ref mut z }
are treated the same as x: x, y: ref y, z: ref mut z
,
except when is_shorthand
is true.
Fields
ident: Ident
The identifier for the field.
pat: P<Pat>
The pattern the field is destructured to.
is_shorthand: bool
attrs: AttrVec
id: NodeId
span: Span
is_placeholder: bool
Trait Implementations
sourceimpl HasAttrs for PatField
impl HasAttrs for PatField
sourceconst SUPPORTS_CUSTOM_INNER_ATTRS: bool = false
const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false
This is true
if this HasAttrs
might support ‘custom’ (proc-macro) inner
attributes. Attributes like #![cfg]
and #![cfg_attr]
are not
considered ‘custom’ attributes. Read more
fn attrs(&self) -> &[Attribute]
fn visit_attrs(&mut self, f: impl FnOnce(&mut Vec<Attribute>))
sourceimpl HasTokens for PatField
impl HasTokens for PatField
fn tokens(&self) -> Option<&LazyTokenStream>
fn tokens_mut(&mut self) -> Option<&mut Option<LazyTokenStream>>
Auto Trait Implementations
impl !RefUnwindSafe for PatField
impl !Send for PatField
impl !Sync for PatField
impl Unpin for PatField
impl !UnwindSafe for PatField
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more
Layout
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 48 bytes