A wild and probably bad idea:

Make it possible to declare variables as non-usable. Like this:

void f(!string filename) { } //OK

void f(!string filename) { write(filename); } //Throws error void f(!string filename) { string filename; } //Throws error

and of course:

foreach(my_mapping; !string name; string value) werror("%O\n", value);

I guess it just adds complexity with no real benifits. It can maybe be good to have in a (huge) function to make sure a global variable isn't used anywhere in it.

If it isn't named you'd have to explicitly document it though (if you want documentation).

Or, the much more standard and preferable syntax: void f(string) {};

On Mon, 07 Jan 2008 06:00:01 +0100, Peter Bortas @ Pike developers forum 10353@lyskom.lysator.liu.se wrote:

But in the end it's a solution looking for a problem. It's not a warning that should be on by default, or even with strict_types.

100% ack.

KISS

Regards, Bernd

I agree that it's something good to have in the toolbox for when you want to clean up the code after a debug session of something, but not normally.