cargo-count 0.2.4

Cargo subcommand for displaying statistics about projects, such as code, comments, and unsafe counters
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/// Defines comment styles for any language
pub trait Comment {
    /// The type of the comment (`String`, `&'static str`, etc.)
    type Rep;
    /// Returns the single line comment style, if any
    fn single(&self) -> Option<Vec<<Self as Comment>::Rep>>;
    /// Returns the start of a multi-line comment style, if any
    fn multi_start(&self) -> Option<<Self as Comment>::Rep>;
    /// Returns the end of a multi-line comment style, if any
    fn multi_end(&self) -> Option<<Self as Comment>::Rep>;
}