[−][src]Enum wasmer_types::ExternRef
Represents an opaque reference to any data within WebAssembly.
Variants
A reference to no data.
A reference to data stored internally.
A reference to data located outside.
Implementations
impl ExternRef
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pub fn new(data: Box<dyn Any>) -> Self
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Creates a new instance of ExternRef
from Box<dyn Any>
.
pub fn null() -> Self
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Creates a Null
reference.
pub fn data(&self) -> Ref<'_, Box<dyn Any>>
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Returns the data stored in the reference if available.
Panics
Panics if the variant isn't ExternRef::Other
.
pub fn ptr_eq(&self, other: &Self) -> bool
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Returns true if the two ExternRef<T>
's point to the same value (not just
values that compare as equal).
pub fn host_info(&self) -> Option<RefMut<'_, Box<dyn HostInfo>>>
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Returns a mutable reference to the host information if available.
Panics
Panics if ExternRef
is already borrowed or ExternRef
is Null
.
pub fn set_host_info(&self, info: Option<Box<dyn HostInfo>>)
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Sets the host information for an ExternRef
.
Panics
Panics if ExternRef
is already borrowed or ExternRef
is Null
.
Trait Implementations
impl Clone for ExternRef
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impl Debug for ExternRef
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impl Eq for ExternRef
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impl<T> From<ExternRef> for Value<T>
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impl Hash for ExternRef
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pub fn hash<H: Hasher>(&self, _state: &mut H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
impl PartialEq<ExternRef> for ExternRef
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Auto Trait Implementations
impl !RefUnwindSafe for ExternRef
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impl !Send for ExternRef
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impl !Sync for ExternRef
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impl Unpin for ExternRef
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impl !UnwindSafe for ExternRef
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
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,
pub fn borrow_mut(&mut self) -> &mut Tⓘ
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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.
pub fn to_owned(&self) -> T
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pub 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.
pub 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>,