44 lines
1.0 KiB
Rust
44 lines
1.0 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
#[derive(Copy, Clone)]
|
|
struct S;
|
|
|
|
impl S {
|
|
fn mutate(&mut self) {
|
|
}
|
|
}
|
|
|
|
fn func(arg: S) {
|
|
arg.mutate(); //~ ERROR: cannot borrow immutable argument
|
|
}
|
|
|
|
impl S {
|
|
fn method(&self, arg: S) {
|
|
arg.mutate(); //~ ERROR: cannot borrow immutable argument
|
|
}
|
|
}
|
|
|
|
trait T {
|
|
fn default(&self, arg: S) {
|
|
arg.mutate(); //~ ERROR: cannot borrow immutable argument
|
|
}
|
|
}
|
|
|
|
impl T for S {}
|
|
|
|
fn main() {
|
|
let s = S;
|
|
func(s);
|
|
s.method(s);
|
|
s.default(s);
|
|
(|arg: S| { arg.mutate() })(s); //~ ERROR: cannot borrow immutable argument
|
|
}
|