you can't do what you are proposing, by design. a macro cannot do anything that you cannot express directly, it simply allows you to express it more succinctly by templating the redundant parts.
if you want a "set" or "numbered list", use a set or number list. variables are bad at that sort of task. whereas an Array is very good at it. On Fri, Mar 6, 2015 at 8:05 AM Abe Schneider <abe.schnei...@gmail.com> wrote: > I'm trying to create a set of variables (_1, _2, ...) from items within a > list in a macro. I have a (much) condensed version of the code: > > macro testfn() > quote > i = 1 > value = [1, 2, 3] > $(Expr(:(=), Expr(:symbol, Expr(:string, "_", :i)), :value)) > println(_1) > end > end > > > which gives me: > > ERROR: syntax: invalid assignment location > > > Any ideas on what might be wrong or the proper way to do this? I would > like to keep this in the quotes, as in the actual version there's a lot > more code surrounding the assignment. > > I can get things to work with an eval, but I rather avoid the eval, and it > appears to create a non-local variable. > > > Thanks! >
