split node classes into separate files

lib/salama-object-file.rb

@@ -1,5 +1,7 @@
 require_relative "sof/util"
 require_relative "sof/node"
+require_relative "sof/simple_node"
+require_relative "sof/object_node"
 require_relative "sof/members"
 require_relative "sof/volotile"
 require_relative "sof/writer"

lib/sof/node.rb

@@ -1,7 +1,7 @@
 # We transform objects into a tree of nodes
 
 module Sof
-  #abstract base class for nodes in the tree
+  # abstract base class for nodes in the tree
   # may be referenced (should be a simple name or number)
   class Node
     include Util
@@ -19,40 +19,4 @@ module Sof
     end
     attr_reader :referenced
   end
-  
-  class SimpleNode < Node
-    def initialize data , ref = nil
-      super(ref)
-      @data = data
-    end
-    attr_reader :data
-    def out io , level
-      super(io,level)
-      io.write(data)
-    end
-  end
-  
-  class ObjectNode < Node
-    def initialize data , ref
-      super(ref)
-      @data = data 
-      @children = []
-    end
-    attr_reader   :children ,  :data
-    def add k , v
-      @children << [k,v]
-    end
-    def out io , level = 0
-      super
-      io.write(@data)
-      indent = " " * (level + 1)
-      @children.each_with_index do |child , i|
-        k , v = child
-        io.write "\n#{indent}"
-        k.out(io , level + 2)
-        io.write " "
-        v.out(io , level + 2)
-      end
-    end
-  end
 end

lib/sof/object_node.rb

@@ -0,0 +1,30 @@
+
+module Sof
+
+  # ObjectNode means node with structure
+  # ie arrays and hashes get transformed into these too
+  
+  class ObjectNode < Node
+    def initialize data , ref
+      super(ref)
+      @data = data
+      @children = []
+    end
+    attr_reader   :children ,  :data
+    def add k , v
+      @children << [k,v]
+    end
+    def out io , level = 0
+      super
+      io.write(@data)
+      indent = " " * (level + 1)
+      @children.each_with_index do |child , i|
+        k , v = child
+        io.write "\n#{indent}"
+        k.out(io , level + 2)
+        io.write " "
+        v.out(io , level + 2)
+      end
+    end
+  end
+end

lib/sof/simple_node.rb

@@ -0,0 +1,19 @@
+# We transform objects into a tree of nodes
+
+module Sof
+
+  # What makes a node simple is that it has no further structure
+  #
+  class SimpleNode < Node
+    def initialize data , ref = nil
+      super(ref)
+      @data = data
+    end
+    attr_reader :data
+    def out io , level
+      super(io,level)
+      io.write(data)
+    end
+  end
+  
+end