19-Sep-2014 02:16, bearophile пишет:

Do you ask about alias this or about it multiple usage. Multiple usage
is similar to single, but multiple:)

I meant the multiple usage. And none of your examples here are use cases
:-( I'd like to see one use case, or more.

For instance one could implement OOP and polymorphism on structs, all in library code.

struct Base {  .... }

struct Itnerface { .... }

struct Derived{
        Base _super;
        Interface _iface;
        alias this _super;
        alias this _iface;

I recall trying something like that but stopping because I needed multiple alias this.

Dmitry Olshansky

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