# Struct stable_mir::abi::LayoutShape

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    pub struct LayoutShape {
        pub fields: FieldsShape,
        pub variants: VariantsShape,
        pub abi: ValueAbi,
        pub abi_align: Align,
        pub size: MachineSize,
    }

Expand description

The layout of a type in memory.

## Fields§

§`fields: FieldsShape`

The fields location withing the layout

§`variants: VariantsShape`

Encodes information about multi-variant layouts. Even with `Multiple` variants, a layout still has its own fields! Those are then shared between all variants.

To access all fields of this layout, both `fields` and the fields of the active variant must be taken into account.

§`abi: ValueAbi`

The `abi` defines how this data is passed between functions.

§`abi_align: Align`

The ABI mandated alignment in bytes.

§`size: MachineSize`

The size of this layout in bytes.

## Implementations§

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### impl LayoutShape

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#### pub fn is_unsized(&self) -> bool

Returns `true` if the layout corresponds to an unsized type.

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#### pub fn is_sized(&self) -> bool

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#### pub fn is_1zst(&self) -> bool

Returns `true` if the type is sized and a 1-ZST (meaning it has size 0 and alignment 1).

## Trait Implementations§

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### impl Clone for LayoutShape

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#### fn clone(&self) -> LayoutShape

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 LayoutShape

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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 Hash for LayoutShape

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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 LayoutShape

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

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

This method tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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### impl Eq for LayoutShape

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### impl StructuralPartialEq for LayoutShape

## Auto Trait Implementations§

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### impl Freeze for LayoutShape

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### impl RefUnwindSafe for LayoutShape

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### impl Send for LayoutShape

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### impl Sync for LayoutShape

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### impl Unpin for LayoutShape

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### impl UnwindSafe for LayoutShape

## 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> 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.

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 288 bytes