9 lines
216 B
Rust
9 lines
216 B
Rust
#![feature(unboxed_closures, tuple_trait)]
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fn to_fn_mut<A:std::marker::Tuple,F:FnMut<A>>(f: F) -> F { f }
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fn main() {
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let mut_ = to_fn_mut(|x| x);
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mut_.call((0, )); //~ ERROR no method named `call` found
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}
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