Module Declaration

Modules organize code into named namespaces. A module is declared with the module keyword and can appear anywhere in a source file. Multiple modules can exist in one file, and modules can be nested.

module Math {
    pub func Sqrt(x: float64) -> float64 {
        // Code here
    }

    pub func Abs(x: float64) -> float64 {
        // Code here
    }
}

Nested modules can be declared inline or using path notation:

module Std::Io {
    pub func Print(s: String) {
        // Code here
    }
}

The :: separator names a path through nested modules, both when declaring (module Std::Io) and when referring to an item (Std::Io::Print).

See Also

• Items Visibility — exporting items with pub
• Import — bringing module items into scope