This code fails compilation with the error message "p.property()[4]" is not an lvalue.  It is valid code.

        struct Array
        {
                int opIndex (int a) { return a; }
                int opIndexAssign (int a, int b) { return a; }
        }

        struct Property
        {
                Array property () { Array a; return a; }
        }

        void test ()
        {
                Property p;

                p.property [4] = 8;
        }

Burton Radons wrote:
> This code fails compilation with the error message "p.property()[4]" is not
> an lvalue.  It is valid code.
> 
>         struct Array
>         {
>                 int opIndex (int a) { return a; }
>                 int opIndexAssign (int a, int b) { return a; }
>         }
>                 struct Property
>         {
>                 Array property () { Array a; return a; }
>         }
>                 void test ()
>         {
>                 Property p;
>                         p.property [4] = 8;
>         }
> 
> 

This is an old bug. The workaround I used is to write parentheses explicitly like p.property()[4] = 8;

Burton Radons schrieb:
> This code fails compilation with the error message "p.property()[4]" is not an lvalue.  It is valid code.
> 
>         struct Array
>         {
>                 int opIndex (int a) { return a; }
>                 int opIndexAssign (int a, int b) { return a; }
>         }
> 
>         struct Property
>         {
>                 Array property () { Array a; return a; }
>         }
> 
>         void test ()
>         {
>                 Property p;
> 
>                 p.property [4] = 8;
>         }

Added to DStress as http://dstress.kuehne.cn/run/o/opIndexAssign_02_A.d http://dstress.kuehne.cn/run/o/opIndexAssign_02_B.d http://dstress.kuehne.cn/run/o/opIndexAssign_02_C.d http://dstress.kuehne.cn/run/o/opIndexAssign_02_D.d http://dstress.kuehne.cn/run/o/opIndexAssign_02_E.d http://dstress.kuehne.cn/run/o/opIndexAssign_02_F.d http://dstress.kuehne.cn/run/o/opIndexAssign_02_G.d http://dstress.kuehne.cn/run/o/opIndexAssign_02_H.d

Thomas