On Thursday, January 03, 2013 17:59:22 deadalnix wrote: > On Thursday, 3 January 2013 at 16:43:06 UTC, bearophile wrote: > > deadalnix: > >> I still have code broken all over the place. > > > > D2 is getting its corner case problems sorted out and fixed, > > but this still causes some breakage in user code. As more > > people use D2, issues are found, discussed and fixed, the > > breakages will get more and more uncommon. > > Is this breakage intended ? To me it doesn't make sense, the > generated code is : > > (Bar bar = Bar.init; , bar).this()
It is most definitely intended. ref requires an lvalue. A struct literal is a temporary and therefore should be an rvalue, not an lvalue. Before, you had the stupid situation of foo(Bar()); //compiles foo(funcWhichReturnsBar()); //fails to compile Both are dealing with temporaries, so both should be rvalues, and neither should compile. You need an actual variable or other non-temporary memory location (e.g. dereferenced pointer) if you want to pass an argument to a ref function. The previous behavior was broken and should have been fixed ages ago. - Jonathan M Davis
