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

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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

Performs the conversion.

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

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

Performs the conversion.

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

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

Performs the conversion.

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

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fn from(ptr: u32) -> Self

Performs the conversion.

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

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const VALUE_TYPE: ValueType

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

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

This method tests for !=.

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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 T where
T: 'static + ?Sized,

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pub 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,

const: unstable · source

pub 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,

const: unstable · source

pub 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

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

pub 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<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

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

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub 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

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: &Pointer<T>) -> 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 T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

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

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

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

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

impl<T> ToOwned for T where
T: Clone,

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

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

impl<T> MaybeRefUnwindSafe for T where
T: RefUnwindSafe,