Please, if possible add a complete minimal program that shows the problem.

Created attachment 836 [details]
Failing code

Comment on attachment 836 [details]
Failing code

Compiling this results in the following error message:

iasm_test.d(15): Error: this for i needs to be type S not type iasm_test.A
iasm_test.d(15): bad type/size of operands '(__error).i'

The attachment:

module iasm_test;

struct S
{
    uint i;
}

class A
{
    uint func(S* s)
    {
        asm
        {
            mov     EDX, s;
            mov     EAX, S.i[EDX];
        }
    }
}

The parser for the iasm operator expressions is quite limited compared with the regular D expressions is quite limited. It is also different in order to be like the Intel assembler syntax. However, this case can be handled using:

    mov EAX, S.i.offsetof[EDX];

instead of:

    mov EAX, S.i[EDX];

Marked as invalid because there is a way to make it work.