[Issue 5311] New: Pure is broken when accessing globals / static data through instance reference

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5311

           Summary: Pure is broken when accessing globals / static data
                    through instance reference
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: major
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: bdom.pub+deebugz at gmail.com


--- Comment #0 from Bruno Medeiros <bdom.pub+deebugz at gmail.com> 2010-12-03 06:26:17 PST ---
See code below, there are two mutating accesses that should be error and are
not:

class X {

    private static int globalData;

    void breaksPure() pure const
    {
        //globalData++; // SHOULD BE ERROR
        //X.globalData++; // SHOULD BE ERROR
        this.globalData++; // SHOULD BE ERROR

        int a = this.globalData; // But readonly access is ok!
    }

}

static void breaksPure2(X x) pure {
    x.globalData++; // SHOULD BE ERROR

    int a = x.globalData; // But readonly access is ok!
}

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