Enum rustc_middle::traits::ObjectSafetyViolation [−][src]
pub enum ObjectSafetyViolation {
SizedSelf(SmallVec<[Span; 1]>),
SupertraitSelf(SmallVec<[Span; 1]>),
Method(Symbol, MethodViolationCode, Span),
AssocConst(Symbol, Span),
GAT(Symbol, Span),
}
Variants
Self: Sized
declared on the trait.
Supertrait reference references Self
an in illegal location
(e.g., trait Foo : Bar<Self>
).
Method(Symbol, MethodViolationCode, Span)
Method has something illegal.
Tuple Fields of Method
Associated const.
GAT
Implementations
Trait Implementations
fn allocate_from_iter<'a>(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = Self>
) -> &'a mut [Self]
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Auto Trait Implementations
impl RefUnwindSafe for ObjectSafetyViolation
impl !Send for ObjectSafetyViolation
impl !Sync for ObjectSafetyViolation
impl Unpin for ObjectSafetyViolation
impl UnwindSafe for ObjectSafetyViolation
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
This method turns the parameters of a DepNodeConstructor into an opaque Fingerprint to be used in DepNode. Not all DepNodeParams support being turned into a Fingerprint (they don’t need to if the corresponding DepNode is anonymous). Read more
This method tries to recover the query key from the given DepNode
,
something which is needed when forcing DepNode
s during red-green
evaluation. The query system will only call this method if
fingerprint_style()
is not FingerprintStyle::Opaque
.
It is always valid to return None
here, in which case incremental
compilation will treat the query as having changed instead of forcing it. 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: 56 bytes
Size for each variant:
SizedSelf
: 28 bytesSupertraitSelf
: 28 bytesMethod
: 52 bytesAssocConst
: 12 bytesGAT
: 12 bytes