first stab at moms if

lib/vool/statements/if_statement.rb

@@ -2,13 +2,32 @@ module Vool
   class IfStatement < Statement
     attr_reader :condition , :if_true , :if_false
 
-    def initialize( cond , if_true , if_false = [])
+    def initialize( cond , if_true , if_false = nil)
       @condition = cond
       @if_true = if_true
       @if_false = if_false
       simplify_condition
     end
 
+    def to_mom( method )
+      if_true = @if_true.to_mom( method )
+      if_false = @if_false.to_mom( method )
+      make_condition( if_true , if_false )
+    end
+
+    # conditions in ruby are almost always method sends (as even comparisons are)
+    # currently we just deal with straight up values which get tested
+    # for the funny ruby logic (everything but false and nil is true)
+    def make_condition( if_true , if_false )
+      merge = Mom::Noop.new(:merge)
+      if_true = [if_true] unless if_true.is_a?(Array)
+      if_true << Mom::Jump.new(merge)
+      if_false = [if_false] unless if_false.is_a?(Array)
+      if_false << Mom::Jump.new(merge)
+      check = Mom::TruthCheck.new( @condition , if_true , if_false , merge)
+      [ check , if_true , if_false , merge ]
+    end
+
     def collect(arr)
       @if_true.collect(arr)
       @if_false.collect(arr)