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8 lines
168 B
Rust
8 lines
168 B
Rust
use std::any::Any;
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fn main()
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{
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fn bar(x:i32) ->i32 { 3*x };
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let b:Box<dyn Any> = Box::new(bar as fn(_)->_);
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b.downcast_ref::<fn(_)->_>(); //~ ERROR E0282
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}
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