[Issue 19190] New: Circular reference error resolved by getting allMembers

d-bugmail at puremagic.com d-bugmail at puremagic.com
Sat Aug 25 15:31:24 UTC 2018


https://issues.dlang.org/show_bug.cgi?id=19190

          Issue ID: 19190
           Summary: Circular reference error resolved by getting
                    allMembers
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: yshuiv7 at gmail.com

Reduced example:

struct lr1 {
    lr1* a;
}
template proxy(T) {
    static if (is(typeof(gen!T.str)))
        enum str = gen!T.str;
}
template gen(T) if (is(T == struct)) {
    enum str = T.stringof;
    private enum xstr = gen!(lr1*).str;
}
template gen(T: S*, S) {
    private alias rc = proxy!S;
    //pragma(msg, __traits(allMembers, rc)); <- uncomment this line resolves
error
    enum str = rc.str~"_ptr";
}
enum tmp = proxy!lr1.str;

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