Struct rustc_target::abi::call::FnAbi

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pub struct FnAbi<'a, Ty> {
    pub args: Box<[ArgAbi<'a, Ty>]>,
    pub ret: ArgAbi<'a, Ty>,
    pub c_variadic: bool,
    pub fixed_count: u32,
    pub conv: Conv,
    pub can_unwind: bool,
}
Expand description

Metadata describing how the arguments to a native function should be passed in order to respect the native ABI.

I will do my best to describe this structure, but these comments are reverse-engineered and may be inaccurate. -NDM

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§args: Box<[ArgAbi<'a, Ty>]>

The LLVM types of each argument.

§ret: ArgAbi<'a, Ty>

LLVM return type.

§c_variadic: bool§fixed_count: u32

The count of non-variadic arguments.

Should only be different from args.len() when c_variadic is true. This can be used to know whether an argument is variadic or not.

§conv: Conv§can_unwind: bool

Implementations§

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impl<'a, Ty> FnAbi<'a, Ty>

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pub fn adjust_for_foreign_abi<C>( &mut self, cx: &C, abi: Abi ) -> Result<(), AdjustForForeignAbiError>where Ty: TyAbiInterface<'a, C> + Copy, C: HasDataLayout + HasTargetSpec,

Trait Implementations§

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impl<'a, Ty: Clone> Clone for FnAbi<'a, Ty>

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fn clone(&self) -> FnAbi<'a, Ty>

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<'a, Ty: Display> Debug for FnAbi<'a, Ty>

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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<'a, Ty: Hash> Hash for FnAbi<'a, Ty>

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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<'a, Ty, __CTX> HashStable<__CTX> for FnAbi<'a, Ty>where __CTX: HashStableContext, Ty: HashStable<__CTX>,

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fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

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impl<'a, Ty: PartialEq> PartialEq<FnAbi<'a, Ty>> for FnAbi<'a, Ty>

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fn eq(&self, other: &FnAbi<'a, Ty>) -> 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<'a, Ty: Eq> Eq for FnAbi<'a, Ty>

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impl<'a, Ty> StructuralEq for FnAbi<'a, Ty>

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impl<'a, Ty> StructuralPartialEq for FnAbi<'a, Ty>

Auto Trait Implementations§

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impl<'a, Ty> RefUnwindSafe for FnAbi<'a, Ty>where Ty: RefUnwindSafe,

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impl<'a, Ty> Send for FnAbi<'a, Ty>where Ty: Send,

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impl<'a, Ty> Sync for FnAbi<'a, Ty>where Ty: Sync,

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impl<'a, Ty> Unpin for FnAbi<'a, Ty>where Ty: Unpin,

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impl<'a, Ty> UnwindSafe for FnAbi<'a, Ty>where Ty: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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.