Type Aliases

Use the type keyword to create a new name for an existing type.

Basic Aliases

type ID = bigint

type Callback = (int) => void



var user_id : ID = 1000

Function Type Aliases

Simplify complex function types:

type SimpleFunc = () => int

type HandlerFunc = (event : *Event) => void



func take_simple_func(simple : SimpleFunc) : int {

    return simple()

}



take_simple_func(() => 674)  // Returns 674

Conditional Type Aliases

Create types that change based on compile-time conditions:

comptime const is_32bit = true



type PlatformInt = if(is_32bit) u32 else u64



// sizeof(PlatformInt) is 4 when is_32bit is true

Local Type Aliases

Type aliases can be defined inside functions:

func process() {

    const use_32 = true

    type LocalType = if(use_32) u32 else u64

    

    var x : LocalType = 100

}