Struct sp_wasm_interface::Pointer

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pub struct Pointer<T: PointerType> { /* private fields */ }

Expand description

Type to represent a pointer in wasm at the host.

Implementations

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impl<T: PointerType> Pointer<T>

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pub fn new(ptr: u32) -> Self

Create a new instance of Self.

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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.

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pub fn null() -> Self

Create a null pointer.

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pub fn cast<R: PointerType>(self) -> Pointer<R>

Cast this pointer of type T to a pointer of type R.

Trait Implementations

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impl<T: Clone + PointerType> Clone for Pointer<T>

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fn clone(&self) -> Pointer<T>

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<T: Debug + PointerType> Debug for Pointer<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<T: PointerType> From<Pointer<T>> for u32

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fn from(ptr: Pointer<T>) -> Self

Converts to this type from the input type.

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impl<T: PointerType> From<Pointer<T>> for u64

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fn from(ptr: Pointer<T>) -> Self

Converts to this type from the input type.

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impl<T: PointerType> From<Pointer<T>> for usize

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fn from(ptr: Pointer<T>) -> Self

Converts to this type from the input type.

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impl<T: PointerType> From<u32> for Pointer<T>

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fn from(ptr: u32) -> Self

Converts to this type from the input type.

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impl<T: PointerType> IntoValue for Pointer<T>

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const VALUE_TYPE: ValueType = ValueType::I32

The type of the value in wasm.

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fn into_value(self) -> Value

Convert self into a wasm Value.

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impl<T: PartialEq + PointerType> PartialEq<Pointer<T>> for Pointer<T>

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fn eq(&self, other: &Pointer<T>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

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impl<T: PointerType> TryFromValue for Pointer<T>

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fn try_from_value(val: Value) -> Option<Self>

Try to convert the given Value into Self.

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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

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impl<T> Any for Twhere
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 Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> Downcast for Twhere
T: Any,

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 more

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 more

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 more

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 more

impl<T> DowncastSync for Twhere
T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

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

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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Struct sp_wasm_interface::Pointer

Implementations

impl<T: PointerType> Pointer<T>

pub fn new(ptr: u32) -> Self

pub fn offset(self, offset: u32) -> Option<Self>

pub fn null() -> Self

pub fn cast<R: PointerType>(self) -> Pointer<R>

Trait Implementations

impl<T: Clone + PointerType> Clone for Pointer<T>

fn clone(&self) -> Pointer<T>

fn clone_from(&mut self, source: &Self)

impl<T: Debug + PointerType> Debug for Pointer<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<T: PointerType> From<Pointer<T>> for u32

fn from(ptr: Pointer<T>) -> Self

impl<T: PointerType> From<Pointer<T>> for u64

fn from(ptr: Pointer<T>) -> Self

impl<T: PointerType> From<Pointer<T>> for usize

fn from(ptr: Pointer<T>) -> Self

impl<T: PointerType> From<u32> for Pointer<T>

fn from(ptr: u32) -> Self

impl<T: PointerType> IntoValue for Pointer<T>

const VALUE_TYPE: ValueType = ValueType::I32

fn into_value(self) -> Value

impl<T: PartialEq + PointerType> PartialEq<Pointer<T>> for Pointer<T>

fn eq(&self, other: &Pointer<T>) -> bool

fn ne(&self, other: &Rhs) -> bool

impl<T: PointerType> TryFromValue for Pointer<T>

fn try_from_value(val: Value) -> Option<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

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> Downcast for Twhere T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

fn as_any(&self) -> &(dyn Any + 'static)

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

impl<T> DowncastSync for Twhere T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::<T>()

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same<T> for T

type Output = T

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> MaybeRefUnwindSafe for Twhere T: RefUnwindSafe,

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,

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

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<T> Downcast for Twhere
T: Any,

impl<T> DowncastSync for Twhere
T: Any + Send + Sync,

impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

impl<T> MaybeRefUnwindSafe for Twhere
T: RefUnwindSafe,