16 lines
425 B
Rust
16 lines
425 B
Rust
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use std::fmt::Debug;
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// Test to suggest boxing the return type, and the closure branch of the `if`
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fn print_on_or_the_other<'a>(a: i32, b: &'a String) -> dyn Fn() + 'a {
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//~^ ERROR return type cannot have an unboxed trait object
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if a % 2 == 0 {
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move || println!("{a}")
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} else {
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Box::new(move || println!("{}", b))
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//~^ ERROR `if` and `else` have incompatible types
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}
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}
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fn main() {}
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