Struct wasmer_vm::SignatureRegistry

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pub struct SignatureRegistry { /* private fields */ }

Expand description

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.

Implementations

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impl SignatureRegistry

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pub fn new() -> Self

Create a new SignatureRegistry.

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pub fn register(&self, sig: &FunctionType) -> VMSharedSignatureIndex

Register a signature and return its unique index.

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pub fn lookup(&self, idx: VMSharedSignatureIndex) -> Option<FunctionType>

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

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impl Debug for SignatureRegistry

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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 MemoryUsage for SignatureRegistry

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fn size_of_val(&self, visited: &mut dyn MemoryUsageTracker) -> usize

Returns the size of the referenced value in bytes. Read more

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

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
 W: DeserializeWith<F, T, D>,
 D: Fallible + ?Sized,
 F: ?Sized,

fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer

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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 T where
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> Pointee for T

type Metadata = ()

The type for metadata in pointers and references to Self.

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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

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

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

Performs the conversion.

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impl<T> Upcastable for T where
T: 'static + Any + Send + Sync,

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

upcast ref

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

upcast mut ref

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

upcast boxed dyn

Struct wasmer_vm::SignatureRegistry

Implementations

impl SignatureRegistry

pub fn new() -> Self

pub fn register(&self, sig: &FunctionType) -> VMSharedSignatureIndex

pub fn lookup(&self, idx: VMSharedSignatureIndex) -> Option<FunctionType>

Trait Implementations

impl Debug for SignatureRegistry

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

impl MemoryUsage for SignatureRegistry

fn size_of_val(&self, visited: &mut dyn MemoryUsageTracker) -> usize

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,

fn type_id(&self) -> TypeId

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

fn pointer_metadata( &<T as ArchivePointee>::ArchivedMetadata) -> <T as Pointee>::Metadata

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

fn borrow(&self) -> &T

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

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

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

fn deserialize( &self, deserializer: &mut D) -> Result<With<T, W>, <D as Fallible>::Error>

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Pointee for T

type Metadata = ()

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

type Error = Infallible

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

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

impl<T> Upcastable for T where T: 'static + Any + Send + Sync,

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

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

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

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

fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

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

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

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,

fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

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

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

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

impl<T> Upcastable for T where
T: 'static + Any + Send + Sync,