ridiculously easy to implement the if now

lib/ast/if_expression.rb

@@ -11,5 +11,31 @@ module Ast
     def attributes
       [:cond, :if_true, :if_false]
     end
+    def compile context , into
+      false_block = into.new_block "#{into.name}_else"
+      merge_block = false_block.new_block "#{into.name}_if_merge"
+
+      cond_val = cond.compile(context , into)
+      puts "compiled if condition #{cond_val.inspect}"
+      into.b false_block , condition_code: cond_val.not_operator
+            
+      last = nil
+      if_true.each do |part|
+        last = part.compile(context , into )
+        puts "compiled in if true #{last.inspect}"
+      end
+      
+      into.b merge_block
+
+      if_false.each do |part|
+        last = part.compile(context , false_block )
+        puts "compiled in if false #{last.inspect}"
+      end
+      
+      puts "compile if end"
+      into.insert_at merge_block
+
+      return last
+    end
   end
 end

lib/ast/operator_expressions.rb

@@ -37,6 +37,8 @@ module Ast
       case operator
       when ">"
         code = l_val.greater_than into , r_val
+      when "<"
+        code = l_val.less_than into , r_val
       when "+"
         res = context.function.new_local
         into.res = l_val + r_val