more setter work

lib/ast/operator_expressions.rb

@@ -7,7 +7,10 @@ module Ast
       r_val = right.compile(context)
       #puts "compiled right #{r_val.inspect}"
       if operator == "="    # assignment, value based
-        raise "Can only assign variables, not #{left}" unless left.is_a?(NameExpression) 
+        if(left.is_a? VariableExpression)
+          left.make_setter
+          l_val = left.compile(context)
+        elsif left.is_a?(NameExpression)
           puts context.inspect unless context.locals
           l_val = context.locals[left.name]
           if( l_val ) #variable existed, move data there
@@ -16,6 +19,9 @@ module Ast
             l_val = context.function.new_local.move( into , r_val )
           end
           context.locals[left.name] = l_val
+        else
+          raise "Can only assign variables, not #{left}" 
+        end
         return l_val
       end