mirror of https://github.com/rust-lang/rust
43 lines
1.3 KiB
Rust
43 lines
1.3 KiB
Rust
#![warn(unused)]
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#[derive(Debug)]
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struct S(i32);
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type Tuple = (S, i32);
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struct Tpair(S, i32);
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struct Spair { x: S, y: i32 }
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fn main() {
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{
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let t: Tuple = (S(0), 0);
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drop(t);
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t.0 = S(1);
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//~^ ERROR assign to part of moved value: `t` [E0382]
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//~| ERROR cannot assign to `t.0`, as `t` is not declared as mutable [E0594]
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t.1 = 2;
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//~^ ERROR cannot assign to `t.1`, as `t` is not declared as mutable [E0594]
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println!("{:?} {:?}", t.0, t.1);
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}
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{
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let u: Tpair = Tpair(S(0), 0);
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drop(u);
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u.0 = S(1);
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//~^ ERROR assign to part of moved value: `u` [E0382]
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//~| ERROR cannot assign to `u.0`, as `u` is not declared as mutable [E0594]
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u.1 = 2;
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//~^ ERROR cannot assign to `u.1`, as `u` is not declared as mutable [E0594]
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println!("{:?} {:?}", u.0, u.1);
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}
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{
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let v: Spair = Spair { x: S(0), y: 0 };
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drop(v);
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v.x = S(1);
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//~^ ERROR assign to part of moved value: `v` [E0382]
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//~| ERROR cannot assign to `v.x`, as `v` is not declared as mutable [E0594]
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v.y = 2;
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//~^ ERROR cannot assign to `v.y`, as `v` is not declared as mutable [E0594]
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println!("{:?} {:?}", v.x, v.y);
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}
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}
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