[Issue 3912] New: pure static nested functions are not recognized as pure

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3912

           Summary: pure static nested functions are not recognized as
                    pure
           Product: D
           Version: 2.040
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: clugdbug at yahoo.com.au


--- Comment #0 from Don <clugdbug at yahoo.com.au> 2010-03-09 04:29:59 PST ---
This bug was reported in a comment in bug 3835 ("fragile CTFE"), but it does
not involve CTFE, so I've created a new bug for it.
=====
pure int genFactorials(int n) {
    static pure int factorial(int n) {
      if (n==2) return 1;
      return factorial(2);
    }
    return factorial(n);
}

============================
bug.d(7): Error: pure function 'factorial' cannot call impure function 'factor
ial'

bug.d(9): Error: pure function 'genFactorials' cannot call impure function 'fa
ctorial'

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