Struct wasmtime_environ::wasmparser::WasmFeatures

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pub struct WasmFeatures {
Show 18 fields pub mutable_global: bool, pub saturating_float_to_int: bool, pub sign_extension: bool, pub reference_types: bool, pub multi_value: bool, pub bulk_memory: bool, pub simd: bool, pub relaxed_simd: bool, pub threads: bool, pub tail_call: bool, pub floats: bool, pub multi_memory: bool, pub exceptions: bool, pub memory64: bool, pub extended_const: bool, pub component_model: bool, pub function_references: bool, pub memory_control: bool,
}
Expand description

Flags for features that are enabled for validation.

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§mutable_global: bool

The WebAssembly mutable-global proposal (enabled by default)

§saturating_float_to_int: bool

The WebAssembly nontrapping-float-to-int-conversions proposal (enabled by default)

§sign_extension: bool

The WebAssembly sign-extension-ops proposal (enabled by default)

§reference_types: bool

The WebAssembly reference types proposal (enabled by default)

§multi_value: bool

The WebAssembly multi-value proposal (enabled by default)

§bulk_memory: bool

The WebAssembly bulk memory operations proposal (enabled by default)

§simd: bool

The WebAssembly SIMD proposal (enabled by default)

§relaxed_simd: bool

The WebAssembly Relaxed SIMD proposal

§threads: bool

The WebAssembly threads proposal

§tail_call: bool

The WebAssembly tail-call proposal

§floats: bool

Whether or not floating-point instructions are enabled.

This is enabled by default can be used to disallow floating-point operators and types.

This does not correspond to a WebAssembly proposal but is instead intended for embeddings which have stricter-than-usual requirements about execution. Floats in WebAssembly can have different NaN patterns across hosts which can lead to host-dependent execution which some runtimes may not desire.

§multi_memory: bool

The WebAssembly multi memory proposal

§exceptions: bool

The WebAssembly exception handling proposal

§memory64: bool

The WebAssembly memory64 proposal

§extended_const: bool

The WebAssembly extended_const proposal

§component_model: bool

The WebAssembly component model proposal.

§function_references: bool

The WebAssembly typed function references proposal

§memory_control: bool

The WebAssembly memory control proposal

Trait Implementations§

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impl Clone for WasmFeatures

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fn clone(&self) -> WasmFeatures

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 WasmFeatures

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

Formats the value using the given formatter. Read more
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impl Default for WasmFeatures

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fn default() -> WasmFeatures

Returns the “default value” for a type. Read more
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impl Hash for WasmFeatures

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

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 Copy for WasmFeatures

Auto Trait Implementations§

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: Copy,

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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<T> CloneToUninit for T
where T: Clone,

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default 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<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.