pub struct EmptyRow;
Trait Implementations§
source§impl VmType for EmptyRow
impl VmType for EmptyRow
fn make_forall_type(vm: &Thread) -> ArcType
source§const EXTRA_ARGS: VmIndex = 0u32
const EXTRA_ARGS: VmIndex = 0u32
How many extra arguments a function returning this type requires.
Used for abstract types which when used in return position should act like they still need
more arguments before they are called
Auto Trait Implementations§
impl RefUnwindSafe for EmptyRow
impl Send for EmptyRow
impl Sync for EmptyRow
impl Unpin for EmptyRow
impl UnwindSafe for EmptyRow
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
§impl<Choices> CoproductSubsetter<CNil, HNil> for Choices
impl<Choices> CoproductSubsetter<CNil, HNil> for Choices
§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
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(where Trait: Downcast
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where ConcreteType
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.§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
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. This is needed since Rust cannot
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’s vtable from &mut Trait
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