Re: [DIP1005] Unused imports in with(import) declarations: leave alone of flag as errors?

[rikki cattermole via Digitalmars-d]

On 25/12/2016 9:32 AM, Andrei Alexandrescu wrote:

Consider:

with (import std.stdio)
int fun(int x/*, File f*/)
{
    // f.writeln("In: ", x);
    return x * x;
}

Such situations occur during refactorings and code evolution. The import
is no longer used. Should the compiler flag that as an error, or leave
it be?


Andrei

How costly is the checking of if said import is used?