On 8/10/11 9:55 AM, Dmitry Olshansky wrote:
On 10.08.2011 18:54, Jacob Carlborg wrote:
Interesting idea, one problem with it is that I want this:

auto m = match("bleh", "bleh");
writeln(m);

to actually print "bleh", not true
Right now due to a carry over bug from std.regex (interface thing)
writln(m) will just do a stackoverflow, m.hit however works.

No, that won't be any problem:

struct Foo
{
bool b;
alias b this;
}

auto f = Foo();
static assert(is(typeof(f) == Foo));

The above assert passes as expected.
That may be all well, but try writeln on it, what will it print?
After some experience with alias this I had to conclude that it's rather
blunt tool, and I'd rather stay away of it.

If alias this is any more blunt than regular subtyping (inheritance), that would be a bug. Feel free to submit if you find such issues.

Andrei

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