Language?
Seems to me like this thing translates hieroglyphics into a set of calls to an eclectic mountain of run time libraries, none of which are open to public inspection.
It would be interesting to see how many machine instructions result from a request to shift the bits in a variable left by one. My C compiler generates a single machine code instruction. I know that because the compiler will helpfully generate a mixed C/assembly language listing if i ask for it.
Sorry, but Wolfram Language requires more trust than I have available to give.