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Record method resolution for call expressions

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This commit is contained in:
Lukas Wirth 2023-01-27 11:06:41 +01:00
parent 9814d79841
commit 54da0bfbf0
10 changed files with 119 additions and 77 deletions
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18
crates/test-utils/src/minicore.rs
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@ -106,6 +106,11 @@ pub mod marker {
impl<T: ?Sized> Copy for &T {}
}
// endregion:copy
// region:fn
#[lang = "tuple_trait"]
pub trait Tuple {}
// endregion:fn
}
// region:default
@ -329,19 +334,26 @@ pub mod ops {
// region:fn
mod function {
use crate::marker::Tuple;
#[lang = "fn"]
#[fundamental]
pub trait Fn<Args>: FnMut<Args> {}
pub trait Fn<Args: Tuple>: FnMut<Args> {
extern "rust-call" fn call(&self, args: Args) -> Self::Output;
}
#[lang = "fn_mut"]
#[fundamental]
pub trait FnMut<Args>: FnOnce<Args> {}
pub trait FnMut<Args: Tuple>: FnOnce<Args> {
extern "rust-call" fn call_mut(&mut self, args: Args) -> Self::Output;
}
#[lang = "fn_once"]
#[fundamental]
pub trait FnOnce<Args> {
pub trait FnOnce<Args: Tuple> {
#[lang = "fn_once_output"]
type Output;
extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
}
}
pub use self::function::{Fn, FnMut, FnOnce};