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# Error code E0753

An inner doc comment was used in an invalid context.

Erroneous code example:

    fn foo() {}
    //! foo
    // ^ error!
    fn main() {}

Inner document can only be used before items. For example:

    //! A working comment applied to the module!
    fn foo() {
        //! Another working comment!
    }
    fn main() {}

In case you want to document the item following the doc comment, you might want to use outer doc comment:

    #![allow(unused)]
    fn main() {
    /// I am an outer doc comment
    #[doc = "I am also an outer doc comment!"]
    fn foo() {
        // ...
    }
    }