# Enum rustc_transmute::layout::rustc::Def

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    pub enum Def<'tcx> {
        Adt(AdtDef<'tcx>),
        Variant(&'tcx VariantDef),
        Field(&'tcx FieldDef),
        Primitive,
    }

Expand description

A visibility node in the layout.

## Variants§

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### Adt(AdtDef<'tcx>)

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### Variant(&'tcx VariantDef)

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### Field(&'tcx FieldDef)

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### Primitive

## Trait Implementations§

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### impl<'tcx> Clone for Def<'tcx>

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#### fn clone(&self) -> Def<'tcx>

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<'tcx> Debug for Def<'tcx>

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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<'tcx> Hash for Def<'tcx>

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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<'tcx> PartialEq for Def<'tcx>

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#### fn eq(&self, other: &Def<'tcx>) -> 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<'tcx> Copy for Def<'tcx>

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### impl<'tcx> Def for Def<'tcx>

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### impl<'tcx> Eq for Def<'tcx>

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### impl<'tcx> StructuralEq for Def<'tcx>

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### impl<'tcx> StructuralPartialEq for Def<'tcx>

## Auto Trait Implementations§

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### impl<'tcx> RefUnwindSafe for Def<'tcx>

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### impl<'tcx> Send for Def<'tcx>

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### impl<'tcx> Sync for Def<'tcx>

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### impl<'tcx> Unpin for Def<'tcx>

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### impl<'tcx> UnwindSafe for Def<'tcx>

## 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: 16 bytes

Size for each variant:

- `Adt`: 8 bytes
- `Variant`: 8 bytes
- `Field`: 8 bytes
- `Primitive`: 0 bytes