#include <fstream.hfa>

enum(int) A !{
    a = 10
};

enum(int) B {
    b = 20
};

enum(int) AB {
    inline A,
    inline B,
    ab = 30
};

enum(int) C {
    c = 40
};

enum(int) D {
    d = 50
};

enum(int) CD {
    inline C,
    inline D,
    cd = 60
};

enum(int) ACD {
    inline A,
    inline CD,
    acd = 70
};

// Note: variable name (cat in this case) cannot be overloaded with those declared in enum,
// Probably for the same reason as const overloading problem
// i.e. int identity_t(enum ACD a) would not work as the value(a) is ambigious currently
int identity_t(enum ACD cat) {
    return value(cat);
}

int main() {
    // Note: We need to use qualified name syntax even if no ! hidding
    // Because Inline introduce ambiguity on symbols
    sout | "Symbols (enumerator) should have the same values:" |nl;
    sout | "Symbol a: (10) " | value(A.a) | "," | value(AB.a) | "," | value(ACD.a) | nl;
    sout | "Symbol b: (20) " | value(B.b) | "," | value(AB.b) | nl;
    sout | "Symbol ab: (30) " | value(AB.ab) | nl;
    sout | "Symbol c: (40) " | value(C.c) | "," | value(CD.c) | "," | value(ACD.c) | nl;
    sout | "Symbol d: (50) " | value(D.d) | "," | value(CD.d) | "," | value(ACD.d) | nl;
    sout | "Symbol cd: (60) " | value(CD.cd) | "," | value(ACD.cd) | nl;
    sout | "Symbol acd: (70) " | value(ACD.acd) | nl;

    sout | "Casting/Upcasting:" | nl;
    sout | "Symbol a: (10) " | value((A)A.a) | "," | value((AB)A.a) | "," | value((ACD)A.a) | nl;
    sout | "Symbol b: (20) " | value((B)B.b) | "," | value((AB)B.b) | nl;
    sout | "Symbol ab: (30) " | value((AB)AB.ab) | nl;
    sout | "Symbol c: (40) " | value((C)C.c) | "," | value((CD)C.c) | "," | value((ACD)C.c) | "," | value((CD)CD.c)| "," | value((ACD)CD.c) | nl;
    sout | "Symbol d: (50) " | value((D)D.d) | "," | value((CD)D.d) | "," | value((ACD)D.d) | "," | value((ACD)CD.d) | nl;
    sout | "Symbol cd: (60) " | value((CD)CD.cd) | "," | value((ACD)CD.cd) | nl;
    sout | "Symbol acd: (70) " | value((ACD)ACD.acd) | nl;

    sout | "Function Call:" | nl;
    sout | "Symbol a: (10) " | identity_t(A.a) | "," | identity_t(ACD.a) | nl;
    sout | "Symbol c: (40) " | identity_t(C.c) | "," | identity_t(ACD.c) | nl;
    sout | "Symbol d: (50) " | identity_t(D.d) | "," | identity_t(ACD.d) | nl;
    sout | "Symbol cd: (60) " | identity_t(CD.cd) | "," | identity_t(ACD.cd) | nl;
    sout | "Symbol acd: (70) " | identity_t(ACD.acd) | nl;
}