sytax.rs

//! parent level doc comments

mod path {
    /*! parent level doc comment2 */
    pub mod name {
        pub type Type = String;
        pub const CONSTANT: &'static str = "const";
    }
}

/// doc comment
fn function_name<'lifetime>(symbol1: &'lifetime self::path::name::Type) -> &'lifetime str {
    // simple comment
    let symbol2 = "hoge";

    'label: loop {
        break 'label;
    }
    /* comment 2 */
    symbol2
}

/** doc comment 2 */
#[derive(Debug, Clone)]
enum Enum {
    Variant,
}

#[derive(Debug, Clone)]
struct Struct {
    symbol3: Enum,
}

impl Struct {
    fn method_name(&self) {}
}

macro_rules! macro_name {
    ($macro_var:expr) => {
        $macro_var
    };
}

fn main() {
    let struct1 = Struct {
        symbol3: Enum::Variant,
    };
    struct1.method_name();
    let fuga = "fuga".to_string();
    // `str` as variable name
    let str = macro_name!(function_name(&fuga));
}