pub enum NullOp {
SizeOf,
AlignOf,
OffsetOf(Vec<(VariantIdx, FieldIdx)>),
UbChecks,
}
Variants§
SizeOf
Returns the size of a value of that type.
AlignOf
Returns the minimum alignment of a type.
OffsetOf(Vec<(VariantIdx, FieldIdx)>)
Returns the offset of a field.
UbChecks
cfg!(ub_checks), but at codegen time
Trait Implementations§
impl Eq for NullOp
impl StructuralPartialEq for NullOp
Auto Trait Implementations§
impl Freeze for NullOp
impl RefUnwindSafe for NullOp
impl Send for NullOp
impl Sync for NullOp
impl Unpin for NullOp
impl UnwindSafe for NullOp
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
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
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: 24 bytes
Size for each variant:
SizeOf
: 0 bytesAlignOf
: 0 bytesOffsetOf
: 24 bytesUbChecks
: 0 bytes