[−][src]Struct js_sys::WebAssembly::Memory
Methods
impl Memory
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pub fn new(descriptor: &Object) -> Result<Memory, JsValue>
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The WebAssembly.Memory()
constructor creates a new Memory
object
which is a resizable ArrayBuffer
that holds the raw bytes of
memory accessed by a WebAssembly Instance
.
A memory created by JavaScript or in WebAssembly code will be accessible and mutable from both JavaScript and WebAssembly.
impl Memory
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pub fn buffer(&self) -> JsValue
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An accessor property that returns the buffer contained in the memory.
impl Memory
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pub fn grow(&self, pages: u32) -> u32
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The grow()
protoype method of the Memory
object increases the
size of the memory instance by a specified number of WebAssembly
pages.
Takes the number of pages to grow (64KiB in size) and returns the previous size of memory, in pages.
Methods from Deref<Target = Object>
pub fn constructor(&self) -> Function
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The constructor property returns a reference to the Object constructor function that created the instance object.
pub fn has_own_property(&self, property: &JsValue) -> bool
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The hasOwnProperty()
method returns a boolean indicating whether the
object has the specified property as its own property (as opposed to
inheriting it).
pub fn is_prototype_of(&self, value: &JsValue) -> bool
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The isPrototypeOf()
method checks if an object exists in another
object's prototype chain.
pub fn property_is_enumerable(&self, property: &JsValue) -> bool
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The propertyIsEnumerable()
method returns a Boolean indicating
whether the specified property is enumerable.
pub fn to_locale_string(&self) -> JsString
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The toLocaleString()
method returns a string representing the object.
This method is meant to be overridden by derived objects for
locale-specific purposes.
pub fn to_string(&self) -> JsString
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The toString()
method returns a string representing the object.
pub fn value_of(&self) -> Object
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The valueOf()
method returns the primitive value of the
specified object.
Trait Implementations
impl Clone for Memory
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fn clone(&self) -> Memory
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl AsRef<JsValue> for Memory
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impl AsRef<Memory> for Memory
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impl AsRef<Object> for Memory
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impl From<JsValue> for Memory
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impl From<Memory> for JsValue
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impl From<Memory> for Object
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impl PartialEq<Memory> for Memory
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impl Eq for Memory
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impl Debug for Memory
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impl Deref for Memory
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impl IntoWasmAbi for Memory
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type Abi = <JsValue as IntoWasmAbi>::Abi
The wasm ABI type that this converts into when crossing the ABI boundary. Read more
fn into_abi(self) -> Self::Abi
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impl<'a> IntoWasmAbi for &'a Memory
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type Abi = <&'a JsValue as IntoWasmAbi>::Abi
The wasm ABI type that this converts into when crossing the ABI boundary. Read more
fn into_abi(self) -> Self::Abi
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impl FromWasmAbi for Memory
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type Abi = <JsValue as FromWasmAbi>::Abi
The wasm ABI type that this converts from when coming back out from the ABI boundary. Read more
unsafe fn from_abi(js: Self::Abi) -> Self
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impl RefFromWasmAbi for Memory
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type Abi = <JsValue as RefFromWasmAbi>::Abi
The wasm ABI type references to Self
are recovered from.
type Anchor = ManuallyDrop<Memory>
The type that holds the reference to Self
for the duration of the invocation of the function that has an &Self
parameter. This is required to ensure that the lifetimes don't persist beyond one function call, and so that they remain anonymous. Read more
unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor
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impl WasmDescribe for Memory
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impl OptionIntoWasmAbi for Memory
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impl<'a> OptionIntoWasmAbi for &'a Memory
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impl OptionFromWasmAbi for Memory
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impl JsCast for Memory
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fn instanceof(val: &JsValue) -> bool
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fn unchecked_from_js(val: JsValue) -> Self
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fn unchecked_from_js_ref(val: &JsValue) -> &Self
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fn has_type<T>(&self) -> bool where
T: JsCast,
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T: JsCast,
Test whether this JS value has a type T
. Read more
fn dyn_into<T>(self) -> Result<T, Self> where
T: JsCast,
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T: JsCast,
Performs a dynamic cast (checked at runtime) of this value into the target type T
. Read more
fn dyn_ref<T>(&self) -> Option<&T> where
T: JsCast,
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T: JsCast,
Performs a dynamic cast (checked at runtime) of this value into the target type T
. Read more
fn unchecked_into<T>(self) -> T where
T: JsCast,
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T: JsCast,
Performs a zero-cost unchecked cast into the specified type. Read more
fn unchecked_ref<T>(&self) -> &T where
T: JsCast,
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T: JsCast,
Performs a zero-cost unchecked cast into a reference to the specified type. Read more
fn is_instance_of<T>(&self) -> bool where
T: JsCast,
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T: JsCast,
Test whether this JS value is an instance of the type T
. Read more
fn is_type_of(val: &JsValue) -> bool
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Performs a dynamic check to see whether the JsValue
provided is a value of this type. Read more
Auto Trait Implementations
impl !Sync for Memory
impl Unpin for Memory
impl !Send for Memory
impl UnwindSafe for Memory
impl RefUnwindSafe for Memory
Blanket Implementations
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> ReturnWasmAbi for T where
T: IntoWasmAbi,
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T: IntoWasmAbi,
type Abi = <T as IntoWasmAbi>::Abi
Same as IntoWasmAbi::Abi