mirror of https://github.com/rust-lang/rust
28 lines
881 B
Rust
28 lines
881 B
Rust
// Functions with a type placeholder `_` as the return type should
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// show a function pointer suggestion when given a function item
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// and suggest how to return closures correctly from a function.
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// This is a regression test of #80179
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fn returns_i32() -> i32 {
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0
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}
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fn returns_fn_ptr() -> _ {
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types [E0121]
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//~| NOTE not allowed in type signatures
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//~| HELP replace with the correct return type
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//~| SUGGESTION fn() -> i32
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returns_i32
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}
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fn returns_closure() -> _ {
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types [E0121]
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//~| NOTE not allowed in type signatures
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//~| HELP replace with an appropriate return type
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//~| SUGGESTION impl Fn() -> i32
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//~| NOTE for more information on `Fn` traits and closure types
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|| 0
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}
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fn main() {}
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