Struct rustc_middle::mir::interpret::AllocId [−][src]
pub struct AllocId(pub NonZeroU64);
Tuple Fields
0: NonZeroU64
Trait Implementations
Produces a Pointer
that points to the beginning of the Allocation
.
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
Says whether the offset
field of Pointer
s with this provenance is the actual physical address.
If true, ptr-to-int casts work by simply discarding the provenance. If
false`, ptr-to-int casts are not supported. The offset must be relative in that case. Read more
We also use this trait to control whether to abort execution when a pointer is being partially overwritten
(this avoids a separate trait in allocation.rs
just for this purpose). Read more
Determines how a pointer should be printed.
Provenance must always be able to identify the allocation this ptr points to.
(Identifying the offset in that allocation, however, is harder – use Memory::ptr_get_alloc
for that.) Read more
Auto Trait Implementations
impl RefUnwindSafe for AllocId
impl UnwindSafe for AllocId
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: 8 bytes