mirror of https://github.com/rust-lang/rust
32 lines
889 B
Rust
32 lines
889 B
Rust
#![feature(fn_traits, unboxed_closures)]
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use std::ops::FnMut;
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struct S {
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x: isize,
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y: isize,
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}
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impl FnMut<isize> for S {
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//~^ ERROR type parameter to bare `FnMut` trait must be a tuple
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extern "rust-call" fn call_mut(&mut self, z: isize) -> isize {
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//~^ ERROR functions with the "rust-call" ABI must take a single non-self tuple argument
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self.x + self.y + z
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}
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}
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impl FnOnce<isize> for S {
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//~^ ERROR type parameter to bare `FnOnce` trait must be a tuple
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type Output = isize;
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extern "rust-call" fn call_once(mut self, z: isize) -> isize {
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//~^ ERROR functions with the "rust-call" ABI must take a single non-self tuple argument
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self.call_mut(z) //~ ERROR `isize` is not a tuple
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}
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}
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fn main() {
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let mut s = S { x: 1, y: 2 };
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drop(s(3)) //~ ERROR `isize` is not a tuple
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//~^ ERROR cannot use call notation
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}
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