ra_ap_syntax 0.0.6

Comment and whitespace preserving parser for the Rust language
Documentation 
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fn foo() { if let Some(_) = None {} }
fn bar() {
    if let Some(_) | Some(_) = None {}
    if let | Some(_) = None {}
    while let Some(_) | Some(_) = None {}
    while let | Some(_) = None {}
}