[−][src]Struct wasmtime_runtime::SignatureRegistry
WebAssembly requires that the caller and callee signatures in an indirect call must match. To implement this efficiently, keep a registry of all signatures, shared by all instances, so that call sites can just do an index comparison.
Methods
impl SignatureRegistry
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pub fn new() -> Self
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Create a new SignatureRegistry
.
pub fn register(&self, sig: &Signature) -> VMSharedSignatureIndex
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Register a signature and return its unique index.
pub fn lookup(&self, idx: VMSharedSignatureIndex) -> Option<Signature>
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Looks up a shared signature index within this registry.
Note that for this operation to be semantically correct the idx
must
have previously come from a call to register
of this same object.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for SignatureRegistry
impl Send for SignatureRegistry
impl Sync for SignatureRegistry
impl Unpin for SignatureRegistry
impl UnwindSafe for SignatureRegistry
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,
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> Same<T> for T
type Output = T
Should always be Self
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>,