On 2013-11-11 10:02, bearophile wrote:
Can't you do the same thing with functions similar (same API but
different semantics) to std.algorithm ones that generate expression
templates?
auto person = persons.filter!(e => e.name == "John");
I have been thinking about that, a solution where "e" is a proxy that
implements opDispatch and which returns a new proxy which overloads
"==". The problem with this is that you cannot separately overload the
equal and comparison operators. In D the all the comparisons operators
are implement with the single overload, opCmp. You cannot know from
inside of opCmp if it's the "<" or the ">" operator that is being
called. Same problem with opEquals.
--
/Jacob Carlborg
