13 lines
344 B
Rust
13 lines
344 B
Rust
fn main() {
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fn f() -> Option<i32> {
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Some("fffffffsssssssssddddssssfffffddddff")
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.map(|s| s)
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.map(|s| s.to_string())
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.map(|res| match Some(res) {
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Some(ref s) if s == "" => 41,
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Some(_) => 42,
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_ => 43,
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})
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}
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println!("{:?}", f())
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}
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