mirror of https://github.com/rust-lang/rust
14 lines
501 B
Rust
14 lines
501 B
Rust
fn main() {
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// Below we call the closure with its own return as the argument, unifying
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// its inferred input and return types. We want to make sure that the generated
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// error handles this gracefully, and in particular doesn't generate an extra
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// note about the `?` operator in the closure body, which isn't relevant to
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// the inference.
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let x = |r| { //~ ERROR type annotations needed for `Result<(), _>`
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let v = r?;
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Ok(v)
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};
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let _ = x(x(Ok(())));
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}
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