Type Alias EmpConstructor<T, TRepr>

Function to free the underlying object. Called when this Emp is garbage-collected

The marker for the Emp type, used to distinguish between multiple types

Typically, this is a unique symbol:

const MyNativeType = Symbol("MyNativeType");
export type MyNativeType = typeof MyNativeType;

const makeMyNativeTypeEmp = makeEmpType({
    marker: MyNativeType,
    free: (ptr) => void freeMyNativeType(ptr)
})
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Note that this is not used in runtime, but just used for type inference, so you can also skip passing it and specify the type parameter instead