pub enum Scalar {
Initialized {
value: Primitive,
valid_range: WrappingRange,
},
Union {
value: Primitive,
},
}
Expand description
Information about one scalar component of a Rust type.
Variants§
Implementations§
source§impl Scalar
impl Scalar
pub fn is_bool(&self) -> bool
sourcepub fn primitive(&self) -> Primitive
pub fn primitive(&self) -> Primitive
Get the primitive representation of this type, ignoring the valid range and whether the value is allowed to be undefined (due to being a union).
pub fn align(self, cx: &impl HasDataLayout) -> AbiAndPrefAlign
pub fn size(self, cx: &impl HasDataLayout) -> Size
pub fn to_union(&self) -> Self
pub fn valid_range(&self, cx: &impl HasDataLayout) -> WrappingRange
sourcepub fn valid_range_mut(&mut self) -> &mut WrappingRange
pub fn valid_range_mut(&mut self) -> &mut WrappingRange
Allows the caller to mutate the valid range. This operation will panic if attempted on a union.
sourcepub fn is_always_valid<C: HasDataLayout>(&self, cx: &C) -> bool
pub fn is_always_valid<C: HasDataLayout>(&self, cx: &C) -> bool
Returns true
if all possible numbers are valid, i.e valid_range
covers the whole
layout.
sourcepub fn is_uninit_valid(&self) -> bool
pub fn is_uninit_valid(&self) -> bool
Returns true
if this type can be left uninit.
Trait Implementations§
source§impl<__CTX> HashStable<__CTX> for Scalarwhere
__CTX: HashStableContext,
impl<__CTX> HashStable<__CTX> for Scalarwhere __CTX: HashStableContext,
fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)
source§impl PartialEq<Scalar> for Scalar
impl PartialEq<Scalar> for Scalar
impl Copy for Scalar
impl Eq for Scalar
impl StructuralEq for Scalar
impl StructuralPartialEq for Scalar
Auto Trait Implementations§
impl RefUnwindSafe for Scalar
impl Send for Scalar
impl Sync for Scalar
impl Unpin for Scalar
impl UnwindSafe for Scalar
Blanket Implementations§
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
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
Size for each variant:
Initialized
: 44 bytesUnion
: 8 bytes