blob: abafd330573ee8b8dba3e5f551e35d0691271b0e [file] [log] [blame]
// This test enumerates various cases of interest where a ADT or tuple is
// partially initialized and then used in some way that is wrong *even*
// after rust-lang/rust#54987 is implemented.
//
// See rust-lang/rust#21232, rust-lang/rust#54986, and rust-lang/rust#54987.
//
// See issue-21232-partial-init-and-use.rs for cases of tests that are
// meant to compile and run successfully once rust-lang/rust#54987 is
// implemented.
#![feature(nll)]
struct D {
x: u32,
s: S,
}
struct S {
y: u32,
z: u32,
}
impl Drop for D {
fn drop(&mut self) { }
}
fn cannot_partially_init_adt_with_drop() {
let d: D;
d.x = 10;
//~^ ERROR assign of possibly uninitialized variable: `d` [E0381]
}
fn cannot_partially_init_mutable_adt_with_drop() {
let mut d: D;
d.x = 10;
//~^ ERROR assign of possibly uninitialized variable: `d` [E0381]
}
fn cannot_partially_reinit_adt_with_drop() {
let mut d = D { x: 0, s: S{ y: 0, z: 0 } };
drop(d);
d.x = 10;
//~^ ERROR assign of moved value: `d` [E0382]
}
fn cannot_partially_init_inner_adt_via_outer_with_drop() {
let d: D;
d.s.y = 20;
//~^ ERROR assign to part of possibly uninitialized variable: `d` [E0381]
}
fn cannot_partially_init_inner_adt_via_mutable_outer_with_drop() {
let mut d: D;
d.s.y = 20;
//~^ ERROR assign to part of possibly uninitialized variable: `d` [E0381]
}
fn cannot_partially_reinit_inner_adt_via_outer_with_drop() {
let mut d = D { x: 0, s: S{ y: 0, z: 0} };
drop(d);
d.s.y = 20;
//~^ ERROR assign to part of moved value: `d` [E0382]
}
fn main() { }