wasmtime_environ

Struct GcStructLayout

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pub struct GcStructLayout {
    pub size: u32,
    pub align: u32,
    pub fields: Vec<u32>,
}
Expand description

The layout for a GC-managed struct type.

This layout is only valid for use with the GC runtime that created it. It is not valid to use one GC runtime’s layout with another GC runtime, doing so is memory safe but will lead to general incorrectness like panics and wrong results.

All offsets are from the start of the object; that is, the size of the GC header (for example) is included in the offset.

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§size: u32

The size (in bytes) of this struct.

§align: u32

The alignment (in bytes) of this struct.

§fields: Vec<u32>

The fields of this struct. The ith entry is the ith struct field’s offset (in bytes) in the struct.

Implementations§

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impl GcStructLayout

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pub fn layout(&self) -> Layout

Get a core::alloc::Layout for a struct of this type.

Trait Implementations§

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impl Clone for GcStructLayout

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fn clone(&self) -> GcStructLayout

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 GcStructLayout

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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 From<GcStructLayout> for GcLayout

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fn from(layout: GcStructLayout) -> Self

Converts to this type from the input type.

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: 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<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.