On 2015-07-22 21:52, Alex Parrill wrote:
You can make a `conformsToSomeInterface!T` template, and use `static
assert`. D ranges, and the upcoming std.allocator, already use this sort
of 'interfaces without polymorphism'.
Ex. `static assert(isInputRange!(MyCoolRange));`
I would be a lot more cleaner to be able to do this:
void foo (T : MyCoolRange) (T range);
Or just:
void foo (MyCoolRange range);
Most of what macros in C were used for are now done with templates,
static if, etc. (I don't know how Rust's macros work). Tools could
theoretically execute `mixin`, but it effectively requires a D
interpreter. A library to do that would be really nice.
Macros in C have nothing to do with macros in Rust, which are called AST
macros or syntax macros. It's unfortunate that they use the same word,
"macro".
If D macros you could do something like this:
auto person = Person.where(e => e.name == 'Foo');
Where the lambda would be translated do an SQL string and performs a
query in a database.
--
/Jacob Carlborg
