Struct rustc_codegen_llvm::abi::FnAbi
source · pub struct FnAbi<'a, Ty> {
pub args: Box<[ArgAbi<'a, Ty>], Global>,
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
Fields
args: Box<[ArgAbi<'a, Ty>], Global>
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
Trait Implementations
sourceimpl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>>
impl<'ll, 'tcx> FnAbiLlvmExt<'ll, 'tcx> for FnAbi<'tcx, Ty<'tcx>>
fn llvm_type(&self, cx: &CodegenCx<'ll, 'tcx>) -> &'ll Type
fn ptr_to_llvm_type(&self, cx: &CodegenCx<'ll, 'tcx>) -> &'ll Type
fn llvm_cconv(&self) -> CallConv
fn apply_attrs_llfn(&self, cx: &CodegenCx<'ll, 'tcx>, llfn: &'ll Value)
fn apply_attrs_callsite(
&self,
bx: &mut Builder<'_, 'll, 'tcx>,
callsite: &'ll Value
)
Auto Trait Implementations
impl<'a, Ty> RefUnwindSafe for FnAbi<'a, Ty>where
Ty: RefUnwindSafe,
impl<'a, Ty> Send for FnAbi<'a, Ty>where
Ty: Send,
impl<'a, Ty> Sync for FnAbi<'a, Ty>where
Ty: Sync,
impl<'a, Ty> Unpin for FnAbi<'a, Ty>where
Ty: Unpin,
impl<'a, Ty> UnwindSafe for FnAbi<'a, Ty>where
Ty: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
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.