3 #![feature(lang_items, unboxed_closures, fn_traits)]
5 use std::ops::{Fn, FnMut, FnOnce};
12 impl FnMut<(i32,)> for S1 {
13 extern "rust-call" fn call_mut(&mut self, (z,): (i32,)) -> i32 {
18 impl FnOnce<(i32,)> for S1 {
20 extern "rust-call" fn call_once(mut self, args: (i32,)) -> i32 {
30 impl Fn<(i32,)> for S2 {
31 extern "rust-call" fn call(&self, (z,): (i32,)) -> i32 {
36 impl FnMut<(i32,)> for S2 {
37 extern "rust-call" fn call_mut(&mut self, args: (i32,)) -> i32 { self.call(args) }
40 impl FnOnce<(i32,)> for S2 {
42 extern "rust-call" fn call_once(self, args: (i32,)) -> i32 { self.call(args) }
50 impl FnOnce<(i32,i32)> for S3 {
52 extern "rust-call" fn call_once(self, (z,zz): (i32,i32)) -> i32 {
53 self.x * self.y * z * zz
69 let ans = s.call((3,));