Struct sp_wasm_interface::Pointer
source · pub struct Pointer<T: PointerType> { /* private fields */ }
Expand description
Type to represent a pointer in wasm at the host.
Implementations
sourceimpl<T: PointerType> Pointer<T>
impl<T: PointerType> Pointer<T>
sourcepub fn offset(self, offset: u32) -> Option<Self>
pub fn offset(self, offset: u32) -> Option<Self>
Calculate the offset from this pointer.
offset
is in units of T
. So, 3
means 3 * mem::size_of::<T>()
as offset to the
pointer.
Returns an Option
to respect that the pointer could probably overflow.
sourcepub fn cast<R: PointerType>(self) -> Pointer<R>
pub fn cast<R: PointerType>(self) -> Pointer<R>
Cast this pointer of type T
to a pointer of type R
.
Trait Implementations
sourceimpl<T: Clone + PointerType> Clone for Pointer<T>
impl<T: Clone + PointerType> Clone for Pointer<T>
sourceimpl<T: Debug + PointerType> Debug for Pointer<T>
impl<T: Debug + PointerType> Debug for Pointer<T>
sourceimpl<T: PointerType> From<Pointer<T>> for u32
impl<T: PointerType> From<Pointer<T>> for u32
sourceimpl<T: PointerType> From<Pointer<T>> for u64
impl<T: PointerType> From<Pointer<T>> for u64
sourceimpl<T: PointerType> From<Pointer<T>> for usize
impl<T: PointerType> From<Pointer<T>> for usize
sourceimpl<T: PointerType> From<u32> for Pointer<T>
impl<T: PointerType> From<u32> for Pointer<T>
sourceimpl<T: PointerType> IntoValue for Pointer<T>
impl<T: PointerType> IntoValue for Pointer<T>
sourceconst VALUE_TYPE: ValueType = ValueType::I32
const VALUE_TYPE: ValueType = ValueType::I32
The type of the value in wasm.
sourcefn into_value(self) -> Value
fn into_value(self) -> Value
Convert
self
into a wasm Value
.sourceimpl<T: PartialEq + PointerType> PartialEq<Pointer<T>> for Pointer<T>
impl<T: PartialEq + PointerType> PartialEq<Pointer<T>> for Pointer<T>
sourceimpl<T: PointerType> TryFromValue for Pointer<T>
impl<T: PointerType> TryFromValue for Pointer<T>
sourcefn try_from_value(val: Value) -> Option<Self>
fn try_from_value(val: Value) -> Option<Self>
Try to convert the given
Value
into Self
.impl<T: Copy + PointerType> Copy for Pointer<T>
impl<T: Eq + PointerType> Eq for Pointer<T>
impl<T: PointerType> StructuralEq for Pointer<T>
impl<T: PointerType> StructuralPartialEq for Pointer<T>
Auto Trait Implementations
impl<T> RefUnwindSafe for Pointer<T>where
T: RefUnwindSafe,
impl<T> Send for Pointer<T>where
T: Send,
impl<T> Sync for Pointer<T>where
T: Sync,
impl<T> Unpin for Pointer<T>where
T: Unpin,
impl<T> UnwindSafe for Pointer<T>where
T: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read morefn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read morefn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read morefn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read moresourceimpl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
sourcefn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.