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4 points by vincenz 4773 days ago | link | parent

Seems that to get first-class macros one would have to:

    1) Not evaluate arguments directly in ac-call, but keep the original arguments and envs
    2) Add a clause in ar-apply to deal with macros
    3) Make sure that in ar-apply, arguments are evaluated for the case where it is still a function/list/hashtable and not a macro
Basically use lazyness only until we find out we're calling a macro.

I'd implement it, but I'm not certain pg wants to go this direction. I don't think it'd change anything else to the language even though under-the-hood it uses some lazy techniques.