AttributeKind in rustc_codegen_llvm::llvm::ffi - Rust
Description: Must match the layout of `LLVMRustAttributeKind`. Semantically a subset of the C++ enum llvm::Attribute::AttrKind, though it is not ABI compatible (since it’s a C++ enum)

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## AttributeKind

# Enum AttributeKind

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    #[repr(C)]pub(crate) enum AttributeKind {
    Show 48 variants    AlwaysInline = 0,
        ByVal = 1,
        Cold = 2,
        InlineHint = 3,
        MinSize = 4,
        Naked = 5,
        NoAlias = 6,
        CapturesAddress = 7,
        NoInline = 8,
        NonNull = 9,
        NoRedZone = 10,
        NoReturn = 11,
        NoUnwind = 12,
        OptimizeForSize = 13,
        ReadOnly = 14,
        SExt = 15,
        StructRet = 16,
        UWTable = 17,
        ZExt = 18,
        InReg = 19,
        SanitizeThread = 20,
        SanitizeAddress = 21,
        SanitizeMemory = 22,
        NonLazyBind = 23,
        OptimizeNone = 24,
        ReadNone = 26,
        SanitizeHWAddress = 28,
        WillReturn = 29,
        StackProtectReq = 30,
        StackProtectStrong = 31,
        StackProtect = 32,
        NoUndef = 33,
        SanitizeMemTag = 34,
        NoCfCheck = 35,
        ShadowCallStack = 36,
        AllocSize = 37,
        AllocatedPointer = 38,
        AllocAlign = 39,
        SanitizeSafeStack = 40,
        FnRetThunkExtern = 41,
        Writable = 42,
        DeadOnUnwind = 43,
        DeadOnReturn = 44,
        CapturesReadOnly = 45,
        CapturesNone = 46,
        SanitizeRealtimeNonblocking = 47,
        SanitizeRealtimeBlocking = 48,
        Convergent = 49,
    }

Expand description

Must match the layout of `LLVMRustAttributeKind`. Semantically a subset of the C++ enum llvm::Attribute::AttrKind, though it is not ABI compatible (since it’s a C++ enum)

## Variants§

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### AlwaysInline = 0

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### ByVal = 1

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### Cold = 2

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### InlineHint = 3

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### MinSize = 4

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### Naked = 5

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### NoAlias = 6

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### CapturesAddress = 7

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### NoInline = 8

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### NonNull = 9

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### NoRedZone = 10

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### NoReturn = 11

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### NoUnwind = 12

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### OptimizeForSize = 13

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### ReadOnly = 14

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### SExt = 15

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### StructRet = 16

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### UWTable = 17

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### ZExt = 18

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### InReg = 19

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### SanitizeThread = 20

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### SanitizeAddress = 21

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### SanitizeMemory = 22

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### NonLazyBind = 23

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### OptimizeNone = 24

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### ReadNone = 26

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### SanitizeHWAddress = 28

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### WillReturn = 29

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### StackProtectReq = 30

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### StackProtectStrong = 31

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### StackProtect = 32

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### NoUndef = 33

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### SanitizeMemTag = 34

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### NoCfCheck = 35

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### ShadowCallStack = 36

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### AllocSize = 37

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### AllocatedPointer = 38

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### AllocAlign = 39

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### SanitizeSafeStack = 40

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### FnRetThunkExtern = 41

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### Writable = 42

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### DeadOnUnwind = 43

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### DeadOnReturn = 44

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### CapturesReadOnly = 45

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### CapturesNone = 46

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### SanitizeRealtimeNonblocking = 47

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### SanitizeRealtimeBlocking = 48

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### Convergent = 49

## Implementations§

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### impl AttributeKind

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#### pub(crate) fn create_attr(self, llcx: &Context) -> &Attribute

Create an LLVM Attribute with no associated value.

## Trait Implementations§

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### impl Clone for AttributeKind

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

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl Debug for AttributeKind

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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 Copy for AttributeKind

## Auto Trait Implementations§

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### impl DynSend for AttributeKind

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### impl DynSync for AttributeKind

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### impl Freeze for AttributeKind

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### impl RefUnwindSafe for AttributeKind

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### impl Send for AttributeKind

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### impl Sync for AttributeKind

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### impl Unpin for AttributeKind

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### impl UnsafeUnpin for AttributeKind

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### impl UnwindSafe for AttributeKind

## Blanket Implementations§

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### impl<T> Aligned for T

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#### const ALIGN: Alignment

Alignment of `Self`.
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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<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

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#### fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T

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#### fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]

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### impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

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#### fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T

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#### fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]

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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, dest: *mut u8)

🔬This is a nightly-only experimental API. (`clone_to_uninit`)
Performs copy-assignment from `self` to `dest`. Read more
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### impl<T, R> CollectAndApply<T, R> for T

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#### fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to `f(&iter.collect::<Vec<_>>())`.

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#### type Output = R

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### impl<T> DynClone for T
where T: Clone,

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#### fn __clone_box(&self, _: Private) -> *mut ()

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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> Instrument for T

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#### fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided `Span`, returning an `Instrumented` wrapper. Read more
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#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more
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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> IntoEither for T

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#### fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts `self` into a `Left` variant of `Either<Self, Self>` if `into_left` is `true`. Converts `self` into a `Right` variant of `Either<Self, Self>` otherwise. Read more
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#### fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts `self` into a `Left` variant of `Either<Self, Self>` if `into_left(&self)` returns `true`. Converts `self` into a `Right` variant of `Either<Self, Self>` otherwise. Read more
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### impl<K> IntoQueryKey<K> for K

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#### fn into_query_key(self) -> K

Argument conversion from `Self` to `K`. This should always be a very cheap conversion, e.g. `LocalDefId::to_def_id`.
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### impl<T> MaybeResult<T> for T

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#### type Error = !

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#### fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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#### fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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### impl<T> Pointable for T

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#### const ALIGN: usize

The alignment of pointer.
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#### type Init = T

The type for initializers.
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#### unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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#### unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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#### unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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#### unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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### impl<T> Same for T

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#### type Output = T

Should always be `Self`
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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<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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#### fn upcast(self, interner: I) -> U

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### impl<I, T> UpcastFrom<I, T> for T

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#### fn upcast_from(from: T, _tcx: I) -> T

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### impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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#### fn vzip(self) -> V

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### impl<T> WithSubscriber for T

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#### fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more
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#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more
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### impl<T> ErasedDestructor for T
where T: 'static,

## 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: 4 bytes

Size for each variant:

- `AlwaysInline`: 0 bytes
- `ByVal`: 0 bytes
- `Cold`: 0 bytes
- `InlineHint`: 0 bytes
- `MinSize`: 0 bytes
- `Naked`: 0 bytes
- `NoAlias`: 0 bytes
- `CapturesAddress`: 0 bytes
- `NoInline`: 0 bytes
- `NonNull`: 0 bytes
- `NoRedZone`: 0 bytes
- `NoReturn`: 0 bytes
- `NoUnwind`: 0 bytes
- `OptimizeForSize`: 0 bytes
- `ReadOnly`: 0 bytes
- `SExt`: 0 bytes
- `StructRet`: 0 bytes
- `UWTable`: 0 bytes
- `ZExt`: 0 bytes
- `InReg`: 0 bytes
- `SanitizeThread`: 0 bytes
- `SanitizeAddress`: 0 bytes
- `SanitizeMemory`: 0 bytes
- `NonLazyBind`: 0 bytes
- `OptimizeNone`: 0 bytes
- `ReadNone`: 0 bytes
- `SanitizeHWAddress`: 0 bytes
- `WillReturn`: 0 bytes
- `StackProtectReq`: 0 bytes
- `StackProtectStrong`: 0 bytes
- `StackProtect`: 0 bytes
- `NoUndef`: 0 bytes
- `SanitizeMemTag`: 0 bytes
- `NoCfCheck`: 0 bytes
- `ShadowCallStack`: 0 bytes
- `AllocSize`: 0 bytes
- `AllocatedPointer`: 0 bytes
- `AllocAlign`: 0 bytes
- `SanitizeSafeStack`: 0 bytes
- `FnRetThunkExtern`: 0 bytes
- `Writable`: 0 bytes
- `DeadOnUnwind`: 0 bytes
- `DeadOnReturn`: 0 bytes
- `CapturesReadOnly`: 0 bytes
- `CapturesNone`: 0 bytes
- `SanitizeRealtimeNonblocking`: 0 bytes
- `SanitizeRealtimeBlocking`: 0 bytes
- `Convergent`: 0 bytes