pub enum TypeSource {
Undetected,
Inferred,
AnnotatedInferred,
AnnotatedExplicit,
}Expand description
How a binding’s type was established (Playbook §2). The ordering is load-bearing: a type is
hard (statically enforced) iff its source is greater than TypeSource::Inferred.
Variants§
Undetected
No type known yet.
Inferred
Inferred from an initializer (:= / soft) — best-effort; downgraded to Variant on
conflict rather than erroring.
AnnotatedInferred
Inferred-but-annotated as inferred (var x := e once accepted).
AnnotatedExplicit
Explicitly annotated (var x: T) — a mismatch is an error.
Implementations§
Trait Implementations§
Source§impl Clone for TypeSource
impl Clone for TypeSource
Source§fn clone(&self) -> TypeSource
fn clone(&self) -> TypeSource
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 moreimpl Copy for TypeSource
Source§impl Debug for TypeSource
impl Debug for TypeSource
impl Eq for TypeSource
Source§impl Ord for TypeSource
impl Ord for TypeSource
Source§fn cmp(&self, other: &TypeSource) -> Ordering
fn cmp(&self, other: &TypeSource) -> Ordering
1.21.0 (const: unstable) · Source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
Source§impl PartialEq for TypeSource
impl PartialEq for TypeSource
Source§fn eq(&self, other: &TypeSource) -> bool
fn eq(&self, other: &TypeSource) -> bool
Tests for
self and other values to be equal, and is used by ==.Source§impl PartialOrd for TypeSource
impl PartialOrd for TypeSource
impl StructuralPartialEq for TypeSource
Auto Trait Implementations§
impl Freeze for TypeSource
impl RefUnwindSafe for TypeSource
impl Send for TypeSource
impl Sync for TypeSource
impl Unpin for TypeSource
impl UnsafeUnpin for TypeSource
impl UnwindSafe for TypeSource
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,
Source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
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.