39 lines
943 B
Rust
39 lines
943 B
Rust
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#![allow(unused)]
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struct S;
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impl S {
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fn call(&mut self, f: impl FnOnce((), &mut Self)) {
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// change state or something ...
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f((), self);
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// change state or something ...
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}
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fn get(&self) {}
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fn set(&mut self) {}
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}
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fn main() {
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let mut v = S;
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v.call(|(), this: &mut S| v.get());
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//~^ error: cannot borrow `v` as mutable because it is also borrowed as immutable
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v.call(|(), this: &mut S| v.set());
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//~^ error: cannot borrow `v` as mutable more than once at a time
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//~| error: cannot borrow `v` as mutable more than once at a time
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v.call(|(), this: &mut S| {
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//~^ error: cannot borrow `v` as mutable more than once at a time
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//~| error: cannot borrow `v` as mutable more than once at a time
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_ = v;
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v.set();
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v.get();
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S::get(&v);
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use std::ops::Add;
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let v = 0u32;
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_ = v + v;
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_ = v.add(3);
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});
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}
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