pub struct PatternFormal {
pub name: String,
pub default_node_id: Option<NodeId>,
}Expand description
One formal arg in a PatternClosure’s declaration.
Fields§
§name: String§default_node_id: Option<NodeId>AST node id for the formal’s default expression, if any. The default evaluates lazily — only when the caller’s AttrSet doesn’t supply this name.
Trait Implementations§
Source§impl Clone for PatternFormal
impl Clone for PatternFormal
Source§fn clone(&self) -> PatternFormal
fn clone(&self) -> PatternFormal
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreSource§impl Debug for PatternFormal
impl Debug for PatternFormal
Source§impl<'de> Deserialize<'de> for PatternFormal
impl<'de> Deserialize<'de> for PatternFormal
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
Source§impl PartialEq for PatternFormal
impl PartialEq for PatternFormal
Source§impl Serialize for PatternFormal
impl Serialize for PatternFormal
impl StructuralPartialEq for PatternFormal
Auto Trait Implementations§
impl Freeze for PatternFormal
impl RefUnwindSafe for PatternFormal
impl Send for PatternFormal
impl Sync for PatternFormal
impl Unpin for PatternFormal
impl UnsafeUnpin for PatternFormal
impl UnwindSafe for PatternFormal
Blanket Implementations§
Source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
Source§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
Source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> DeserializeOwned for Twhere
T: for<'de> Deserialize<'de>,
Source§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
Source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Returns the layout of the type.
Source§impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
Source§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
Returns whether the given value has been niched. Read more
Source§fn resolve_niched(out: Place<NichedOption<T, N1>>)
fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
out indicating that a T is niched.