[Issue 10532] New: Silence some unreachable statement warnings when in a static foreach
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Wed Jul 3 18:34:27 PDT 2013
http://d.puremagic.com/issues/show_bug.cgi?id=10532
Summary: Silence some unreachable statement warnings when in a
static foreach
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P2
Component: DMD
AssignedTo: nobody at puremagic.com
ReportedBy: andrej.mitrovich at gmail.com
--- Comment #0 from Andrej Mitrovic <andrej.mitrovich at gmail.com> 2013-07-03 18:34:26 PDT ---
-----
import std.traits;
enum E { a, b}
void main()
{
foreach (e; EnumMembers!E)
{
if (e == E.a)
continue;
// lots of code follows..
auto x = 1;
}
}
-----
$ dmd -w test.d
> test.d(14): Warning: statement is not reachable
I don't know if this is doable, but it's a little annoying that we have these
unreachable statement warnings when in a static foreach loop. It forces use to
use an else statement, but this introduces indentation.
In this specific test-case the alternative could be to Filter!() through the
EnumMembers so "E.a" never appears in the loop, but for more complex cases such
filtering may not be usable.
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