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Support overloaded deref MIR lowering

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This commit is contained in:
hkalbasi 2023-03-17 14:02:55 +03:30
parent 9564773d5e
commit eb4939e217
18 changed files with 398 additions and 86 deletions
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62
crates/test-utils/src/minicore.rs
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@ -375,6 +375,68 @@ pub mod ops {
type Output;
extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
}
mod impls {
use crate::marker::Tuple;
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_fn_trait_ref_impls", issue = "101803")]
impl<A: Tuple, F: ?Sized> const Fn<A> for &F
where
F: ~const Fn<A>,
{
extern "rust-call" fn call(&self, args: A) -> F::Output {
(**self).call(args)
}
}
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_fn_trait_ref_impls", issue = "101803")]
impl<A: Tuple, F: ?Sized> const FnMut<A> for &F
where
F: ~const Fn<A>,
{
extern "rust-call" fn call_mut(&mut self, args: A) -> F::Output {
(**self).call(args)
}
}
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_fn_trait_ref_impls", issue = "101803")]
impl<A: Tuple, F: ?Sized> const FnOnce<A> for &F
where
F: ~const Fn<A>,
{
type Output = F::Output;
extern "rust-call" fn call_once(self, args: A) -> F::Output {
(*self).call(args)
}
}
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_fn_trait_ref_impls", issue = "101803")]
impl<A: Tuple, F: ?Sized> const FnMut<A> for &mut F
where
F: ~const FnMut<A>,
{
extern "rust-call" fn call_mut(&mut self, args: A) -> F::Output {
(*self).call_mut(args)
}
}
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_fn_trait_ref_impls", issue = "101803")]
impl<A: Tuple, F: ?Sized> const FnOnce<A> for &mut F
where
F: ~const FnMut<A>,
{
type Output = F::Output;
extern "rust-call" fn call_once(self, args: A) -> F::Output {
(*self).call_mut(args)
}
}
}
}
pub use self::function::{Fn, FnMut, FnOnce};
// endregion:fn