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// Copyright 2018 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.
// All the possible mutability error cases.
#![allow(unused)]
type MakeRef = fn() -> &'static (i32,);
type MakePtr = fn() -> *const (i32,);
fn named_ref(x: &(i32,)) {
*x = (1,); //~ ERROR
x.0 = 1; //~ ERROR
&mut *x; //~ ERROR
&mut x.0; //~ ERROR
}
fn unnamed_ref(f: MakeRef) {
*f() = (1,); //~ ERROR
f().0 = 1; //~ ERROR
&mut *f(); //~ ERROR
&mut f().0; //~ ERROR
}
unsafe fn named_ptr(x: *const (i32,)) {
*x = (1,); //~ ERROR
(*x).0 = 1; //~ ERROR
&mut *x; //~ ERROR
&mut (*x).0; //~ ERROR
}
unsafe fn unnamed_ptr(f: MakePtr) {
*f() = (1,); //~ ERROR
(*f()).0 = 1; //~ ERROR
&mut *f(); //~ ERROR
&mut (*f()).0; //~ ERROR
}
fn fn_ref<F: Fn()>(f: F) -> F { f }
fn ref_closure(mut x: (i32,)) {
fn_ref(|| {
x = (1,); //~ ERROR
x.0 = 1; //~ ERROR
&mut x; //~ ERROR
&mut x.0; //~ ERROR
});
fn_ref(move || {
x = (1,); //~ ERROR
x.0 = 1; //~ ERROR
&mut x; //~ ERROR
&mut x.0; //~ ERROR
});
}
fn imm_local(x: (i32,)) {
&mut x; //~ ERROR
&mut x.0; //~ ERROR
}
fn imm_capture(x: (i32,)) {
|| { //~ ERROR
x = (1,);
x.0 = 1;
&mut x;
&mut x.0;
};
move || {
x = (1,); //~ ERROR
x.0 = 1; //~ ERROR
&mut x; //~ ERROR
&mut x.0; //~ ERROR
};
}
static X: (i32,) = (0,);
fn imm_static() {
X = (1,); //~ ERROR
X.0 = 1; //~ ERROR
&mut X; //~ ERROR
&mut X.0; //~ ERROR
}
fn main() {}
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