Can I call a Box<FnOnce()>? If I write let f: Box<FnOnce()> = Box::new(|| ()); f() I get “cannot move a value of type core::ops::FnOnce(): the size of core::ops::FnOnce() cannot be statically determined”.

Can I call a Box<FnOnce()>?

xnor June 1, 2020, 4:44pm 4

5 years later, the trait FnBox isn't in the stdlib (unstable or not).
How do we do this these days?

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