moved statements up one dir

lib/vool/statements.rb

@@ -0,0 +1,68 @@
+module Vool
+  class Statements < Statement
+    attr_reader :statements
+    def initialize(statements)
+      @statements = statements
+    end
+
+    def empty?
+      @statements.empty?
+    end
+    def single?
+      @statements.length == 1
+    end
+    def first
+      @statements.first
+    end
+    def last
+      @statements.last
+    end
+    def length
+      @statements.length
+    end
+    def [](i)
+      @statements[i]
+    end
+    def <<(o)
+      @statements << o
+      self
+    end
+
+    # create mom instructions
+    def to_mom( method )
+      raise "Empty list ? #{statements.length}" unless @statements[0]
+      flat = @statements.shift.to_mom(method)
+      while( nekst = @statements.shift )
+        flat.append nekst.to_mom(method)
+      end
+      flat
+    end
+
+    def create_objects
+      @statements.each{ |s| s.create_objects }
+    end
+
+    def each(&block)
+      block.call(self)
+      @statements.each{|a| a.each(&block)}
+    end
+
+    def normalize
+      if( single? )
+        first.normalize
+      else
+        Statements.new(@statements.collect{|s| s.normalize})
+      end
+    end
+  end
+
+  class ScopeStatement < Statements
+    def normalize
+      if( single? )
+        first.normalize
+      else
+        ScopeStatement.new(@statements.collect{|s| s.normalize})
+      end
+    end
+  end
+end