Re: How can I get the "owner" of a method?

[Ali Çehreli via Digitalmars-d-learn]

On 9/30/22 14:11, solidstate1991 wrote:

> extern (C) public int registerDDelegate(alias Func,
That can be a lambda that takes ClassType. I wrote the following along 
with place holder as I assumed them to be:

class C {
    string s;

    void foo() {
        import std.stdio : writeln;
        writeln("Look ma: It was ", s, " but I am using it in D!");
    }
}

auto luaGetFromIndex(C)() {
    auto c = new C();
    c.s = "created in Lua";
    return c;
}

extern (C)
int registerDDelegate(alias Func)() {
    import std.traits : Parameters;
    alias ClassType = Parameters!Func[0];
    auto c = luaGetFromIndex!ClassType();

    Func(c);
    return 0;
}

void main() {
    // Here: The lambda takes a C:
    registerDDelegate!((C c) => c.foo);
}

Ali