Option unwrap or outer loop continue can be pattern match

What it does

let a is Option<T>.
If both condition is met, the pattern can be written in pattern match:

• a == None then continue outer loop
• If not, t = a.unwrap() then using t later

Lint Name

loop_option_unwrap_with_continue

Category

pedantic

Advantage

• Removing call to Option<T>#unwrap which can be written in more idiomatic way

Drawbacks

No response

Example

for a in b {
    let c: Option<T> = a;
    if c.is_none() {
        continue;
    }
    let e = c.unwrap();
    // using e
}

Could be written as:

for a in b {
    let c: Option<T> = a;
    match c {
        Some(e) => {
            // using e
        }
        None => continue;
    }
}

Start by searching Clippy's existing lint implementations for loop and Option::unwrap patterns, along with their associated lint tests. Use the issue's examples to define the target pattern and verify that the new lint recognizes the Some/None control flow without flagging unrelated code.