DIP19: Remove comma operator from D and provision better syntactic support for tuples

[deadalnix]

Le 25/09/2012 17:51, ixid a écrit :
> You've shown it's clearly incompatible with the current language and
> would break lots of code. What would it break if assignment required
> explicit tuple brackets?
>
> (int a, b) = foo(); // A tuple assignment, 'a' and 'b' will be filled in
> order by the multiple return values of foo()
>
> int foo() {
> return 1;
> }
>
> (int a, b) = foo(); // Also valid and only sets 'a'
>
>
> int, int foo() {
> return 1, 2;
> }
>
> int a = foo(); // Also valid and 'a' takes the first tuple value
>
> (int a, auto b) = foo(); // Evaluated left to right so 'a' will take the
> first argument of foo and b will auto to a type or tuple of what
> remains. It will error if there is nothing remaining for b. This would
> still allow the clean expression of stand-alone tuples and function
> arguments and return values.
>
> int, string a = 1, "hello";
> int, string foo(double, double a) {
> return cast(int) (d[0] * d[1]), "hello";
> }
>

WTF are thoses affirmations ?