# Struct rustc_codegen_llvm::abi::ArgAbi

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    pub struct ArgAbi<'a, Ty> {
        pub layout: TyAndLayout<'a, Ty>,
        pub mode: PassMode,
    }

Expand description

Information about how to pass an argument to, or return a value from, a function, under some ABI.

## Fields§

§`layout: TyAndLayout<'a, Ty>`§`mode: PassMode`

## Trait Implementations§

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### impl<'ll, 'tcx> ArgAbiExt<'ll, 'tcx> for ArgAbi<'tcx, Ty<'tcx>>

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#### fn memory_ty(&self, cx: &CodegenCx<'ll, 'tcx>) -> &'ll Type

Gets the LLVM type for a place of the original Rust type of this argument/return, i.e., the result of `type_of::type_of`.

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#### fn store( &self, bx: &mut Builder<'_, 'll, 'tcx>, val: &'ll Value, dst: PlaceRef<'tcx, &'ll Value> )

Stores a direct/indirect value described by this ArgAbi into a place for the original Rust type of this argument/return. Can be used for both storing formal arguments into Rust variables or results of call/invoke instructions into their destinations.

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#### fn store_fn_arg( &self, bx: &mut Builder<'_, 'll, 'tcx>, idx: &mut usize, dst: PlaceRef<'tcx, &'ll Value> )

## Auto Trait Implementations§

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### impl<'a, Ty> RefUnwindSafe for ArgAbi<'a, Ty>
where Ty: RefUnwindSafe,

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### impl<'a, Ty> Send for ArgAbi<'a, Ty>
where Ty: Send,

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### impl<'a, Ty> Sync for ArgAbi<'a, Ty>
where Ty: Sync,

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### impl<'a, Ty> Unpin for ArgAbi<'a, Ty>
where Ty: Unpin,

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### impl<'a, Ty> UnwindSafe for ArgAbi<'a, Ty>
where Ty: UnwindSafe,

## 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: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.