On 11/06/2011 12:54, Andrei Alexandrescu wrote:
Consider two statements:
1. "I dislike Flag. It looks ugly to me."
This statement holds true for me.
2. "I dislike Flag. Instead I want named arguments."
This one is perhaps true. I've never needed named arguments.
There is little retort to (1) - it simply counts as a vote against. For
(2) the course of action is to point out the liabilities of changing the
language.
Andrei
So I had an idea.
----
struct Flag
{
static bool opDispatch(string n)()
{
static if (n[0..2] == "no")
{
return false;
}
else
{
return true;
}
}
}
void myFunc(bool foo, bool bar)
{
}
void main()
{
myFunc(Flag.foo, Flag.noBar);
}
----
* No ugly templates
* Self documenting
* No overhead (dmd can inline it to myFunc(true, false))
* Caller decides if they want it
--
Robert
http://octarineparrot.com/
