wasmtime_environ

Struct Global

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pub struct Global {
    pub wasm_ty: WasmValType,
    pub mutability: bool,
}
Expand description

A WebAssembly global.

Note that we record both the original Wasm type and the Cranelift IR type used to represent it. This is because multiple different kinds of Wasm types might be represented with the same Cranelift IR type. For example, both a Wasm i64 and a funcref might be represented with a Cranelift i64 on 64-bit architectures, and when GC is not required for func refs.

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§wasm_ty: WasmValType

The Wasm type of the value stored in the global.

§mutability: bool

A flag indicating whether the value may change at runtime.

Trait Implementations§

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impl Clone for Global

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fn clone(&self) -> Global

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 Debug for Global

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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<'de> Deserialize<'de> for Global

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Hash for Global

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for Global

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fn eq(&self, other: &Global) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for Global

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl TypeTrace for Global

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fn trace<F, E>(&self, func: &mut F) -> Result<(), E>

Visit each edge. Read more
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fn trace_mut<F, E>(&mut self, func: &mut F) -> Result<(), E>
where F: FnMut(&mut EngineOrModuleTypeIndex) -> Result<(), E>,

Visit each edge, mutably. Read more
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fn trace_engine_indices<F, E>(&self, func: &mut F) -> Result<(), E>
where F: FnMut(VMSharedTypeIndex) -> Result<(), E>,

Trace all VMSharedTypeIndex edges, ignoring other edges.
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fn canonicalize_for_runtime_usage<F>(&mut self, module_to_engine: &mut F)

Canonicalize self by rewriting all type references inside self from module-level interned type indices to engine-level interned type indices. Read more
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fn is_canonicalized_for_runtime_usage(&self) -> bool

Is this type canonicalized for runtime usage?
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fn canonicalize_for_hash_consing<F>( &mut self, rec_group_range: Range<ModuleInternedTypeIndex>, module_to_engine: &mut F, )

Canonicalize self by rewriting all type references inside self from module-level interned type indices to either engine-level interned type indices or recgroup-relative indices. Read more
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fn is_canonicalized_for_hash_consing(&self) -> bool

Is this type canonicalized for hash consing?
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impl Copy for Global

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impl Eq for Global

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impl StructuralPartialEq for Global

Auto Trait Implementations§

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impl Freeze for Global

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impl RefUnwindSafe for Global

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impl Send for Global

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impl Sync for Global

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impl Unpin for Global

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impl UnwindSafe for Global

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

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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,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,