[Issue 5696] New: Templates typetuple iteration

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5696

           Summary: Templates typetuple iteration
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: bearophile_hugs at eml.cc


--- Comment #0 from bearophile_hugs at eml.cc 2011-03-04 09:48:45 PST ---
I am allowed to create a type tuple of function templates, but then it seems I
am not allowed to use a static foreach on that type tuple:


template TypeTuple(TList...) {
    alias TList TypeTuple;
}
int foo(T)(T x) {
    return 0;
}
void main() {
    alias TypeTuple!(foo, foo) t2;
    static assert(t2[0](0) == 0); // OK
    static assert(t2[1](0) == 0); // OK
    foreach (t; t2) {} // Error
}


DMD 2.052 shows:

test.d(11): Error: variable test.main.t voids have no value
test.d(11): Error: template foo(T) has no value
test.d(11): Error: variable test.main.t voids have no value
test.d(11): Error: template foo(T) has no value

See also bug 2411

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