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Borrowck doesn't consider calls to fn~ to be borrows #2978
Description
This program should fail:
fn call(x: @{mut f: fn~()}) {
x.f(); //~ ERROR foo
//~^ NOTE bar
}
fn main() {}
the reason is that it would be possible for the closure to cause itself to be freed. well, of course it's not actually possible in this case but it'd require alias analysis to know that.
Activity
Cleanup how we handle proto in types, remove unsound subtyping
auto merge of #12165 : fhahn/rust/change-some-tests, r=alexcrichton
Cargo update 2024-01-18 (rust-lang#2978)
Merge rust-lang#2978
Merge pull request rust-lang#2978 from ada4a/patch-4