Recursive macro call

As an exercise, I’m trying to make a macro that turns @x a b c into a = b = c = 1234.

I tried to write it recursively, but I don’t know how to fix my error

Definition:

julia> macro x(s::Symbol, ss...)
           quote
               $(esc(s)) = @x $(esc(ss))...
           end
       end

julia> macro x()
           1234
       end

Call:

julia> @x a b c
ERROR: LoadError: MethodError: no method matching @x(::LineNumberNode, ::Module, ::Expr)
Closest candidates are:
  @x(::LineNumberNode, ::Module) at REPL[9]:2
  @x(::LineNumberNode, ::Module, ::Symbol, ::Any...) at REPL[21]:2
in expression starting at REPL[21]:3

Any tips?

(The self-assigned exercise is to write it recursively)

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