Re: Tuple DIP

[MrSmith via Digitalmars-d]

On Saturday, 13 January 2018 at 21:05:27 UTC, Timon Gehr wrote:

On 13.01.2018 21:49, Timon Gehr wrote:

auto (name, email) = fetchUser();
    vs
auto {name, email} = fetchUser();

BTW: What do you think each of those do?
I'd expect the following:

---
auto (name, email) = fetchUser();
=>
auto __tmp = fetchUser();
auto name = __tmp[0], email = __tmp[1];
---

---
auto {name, email} = fetchUser();
=>
auto __tmp = fetchUser();
auto name = __tmp.name, email = __tmp.email;
---

The DIP proposes only the first one of those features, and only for AliasSeq's or types that alias this to an AliasSeq (such as tuples).

How about this syntax for getting a tuple of fields:

---
auto (name, email) = fetchUser().(name, email);
---