SRef

ic_stable_memory::primitive::s_ref

Struct SRef 

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pub struct SRef<'o, T> { /* private fields */ }
Expand description

Immutable reference to data stored in stable memory

See also SRefMut.

Lazy - only loads and deserializes the data, when it gets accessed. Useful when building your own stable data structure. Immutable access is provided by dereferencing.

T has to implement StableType and AsFixedSizeBytes.

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impl<'o, T> SRef<'o, T>

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pub unsafe fn new(ptr: u64) -> Self

Creates reference from raw pointer.

§Safety

Make sure your raw pointer points to a valid location.

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impl<'o, T: StableType + AsFixedSizeBytes + CandidType> CandidType for SRef<'o, T>

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fn _ty() -> Type

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fn idl_serialize<S>(&self, serializer: S) -> Result<(), S::Error>
where S: Serializer,

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fn ty() -> Type

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fn id() -> TypeId

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impl<'o, T: StableType + AsFixedSizeBytes> Deref for SRef<'o, T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.

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impl<'o, T> !Freeze for SRef<'o, T>

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impl<'o, T> !RefUnwindSafe for SRef<'o, T>

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impl<'o, T> Send for SRef<'o, T>
where T: Send + Sync,

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impl<'o, T> !Sync for SRef<'o, T>

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impl<'o, T> Unpin for SRef<'o, T>
where T: Unpin,

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impl<'o, T> UnwindSafe for SRef<'o, T>
where T: UnwindSafe + RefUnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.