Class: Xampl::RubyPrinter

Inherits:
Object
  • Object
show all
Defined in:
lib/xamplr/to-ruby.rb

Instance Method Summary collapse

Constructor Details

#initialize(mentions = nil) ⇒ RubyPrinter

Returns a new instance of RubyPrinter.



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# File 'lib/xamplr/to-ruby.rb', line 8

def initialize(mentions=nil)
  @obj_count = 0
  @map = {}
  @lookup_map={}
  @mentions = mentions
end

Instance Method Details

#show_attributes(thing, name, depth) ⇒ Object 



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# File 'lib/xamplr/to-ruby.rb', line 15

def show_attributes(thing, name, depth)
  return "" unless thing.attributes

  out = ""
  indent = "    " + ("  " * depth)

  if thing.persist_required and (1 < depth)
    accessor = thing.indexed_by
    value = thing.get_the_index
    if value then
      out << indent << "#{name}.#{accessor} = #{value.inspect}\n"
    end
  else
    thing.attributes.each do |attribute|
      value = thing.instance_variable_get(attribute[0])

      if value then
        if value.kind_of?(XamplObject) then
          vname = "root_#{@obj_count += 1}"
          out << to_ruby_as_attr(value, depth, vname)
          out << indent << "#{name}.instance_variable_set(:#{attribute[0]}, #{vname})\n"
        else
          out << indent << "#{name}.instance_variable_set(:#{attribute[0]}, #{value.inspect})\n"
        end
      end
    end
  end
  return out
end

#show_attributes_flat(thing, depth) ⇒ Object 



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# File 'lib/xamplr/to-ruby.rb', line 80

def show_attributes_flat(thing, depth)
  return "" unless thing.attributes

  out = ""

  if thing.persist_required and (1 < depth)
    accessor = thing.indexed_by

    value = thing.get_the_index
    if value then
      out << "      " << "xampl.#{accessor} = #{value.inspect}\n"
    end
  else
    thing.attributes.each do |attribute|
      value = thing.instance_variable_get(attribute[0])

      if value then
        out << "      " << "xampl.instance_variable_set(:#{attribute[0]}, #{value.inspect})\n"
      end
    end
  end
  return out
end

#show_children_flat(thing, name, depth) ⇒ Object 



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# File 'lib/xamplr/to-ruby.rb', line 104

def show_children_flat(thing, name, depth)
  out = ""

  thing.children.each do |child|
    if child.kind_of? XamplObject and (nil == @map[child]) then
      cname = "v_#{child.safe_name}_#{@obj_count += 1}"

      @map[child] = cname

      cout = ""
      cout << show_attributes_flat(child, 1 + depth)

      if 0 < cout.size then
        if child.persist_required then
          out << "    " << "#{cname} = #{child.class.to_s}['#{child.get_the_index}']\n"
          @mentions << child if @mentions
        else
          out << "    " << "#{cname} = #{child.class.to_s}.new { | xampl |\n"
          out << cout
          out << "    " << "}\n"
        end
      else
        out << "    " << "#{cname} = #{child.class.to_s}.new\n"
      end
      out << show_children_flat(child, cname, 1 + depth) unless child.persist_required
    end
  end
  return out
end

#show_children_stitch(thing, depth) ⇒ Object 



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# File 'lib/xamplr/to-ruby.rb', line 139

def show_children_stitch(thing, depth)
  out = ""

  return out if thing.persist_required and (0 < depth)

  name = @map[thing]
  if name then
    @map.delete(thing)
  else
    return out
  end

  if (!thing.kind_of? XamplWithMixedContent) and
          (!thing.kind_of? XamplWithoutContent) and
          thing._content then
    out << "    " << "#{name} << #{thing._content.inspect}\n"
  end
  thing.children.each do |child|
    if child.kind_of? XamplObject then
      out << "    " << "#{name} << #{@lookup_map[child]}\n"
    else
      out << "    " << "#{name} << #{child.inspect}\n"
    end
  end
  thing.children.each do |child|
    if child.kind_of? XamplObject then
      out << show_children_stitch(child, 1 + depth)
    end
  end
  return out
end

#show_children_stitch_start(thing, depth) ⇒ Object 



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# File 'lib/xamplr/to-ruby.rb', line 134

def show_children_stitch_start(thing, depth)
  @lookup_map.merge!(@map)
  return show_children_stitch(thing, depth)
end

#show_children_tree(thing, name, depth) ⇒ Object 



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# File 'lib/xamplr/to-ruby.rb', line 45

def show_children_tree(thing, name, depth)
  out = ""
  indent = "    " + ("  " * depth)

  if thing.persist_required and (1 < depth) then
    return out << indent << "#{name}.load_needed = true\n"
  end

  if (!thing.kind_of? XamplWithMixedContent) and
          (!thing.kind_of? XamplWithoutContent) and
          thing._content then
    out << indent << "#{name} << #{thing._content.inspect}\n"
  end
  thing.children.each do |child|
    if child.kind_of? XamplObject then
      cname = "v_#{child.safe_name}_#{@obj_count += 1}"

      cout = ""
      cout << show_attributes(child, cname, 1 + depth)
      cout << show_children_tree(child, cname, 1 + depth)

      if 0 < cout.size then
        out << indent << "#{name} << #{child.class.to_s}.new { | #{cname} |\n"
        out << cout
        out << indent << "}\n"
      else
        out << indent << "#{name} << #{child.class.to_s}.new\n"
      end
    else
      out << indent << "#{name} << #{child.inspect}\n"
    end
  end
  return out
end

#to_ruby(thing, depth = 0, name = "root") ⇒ Object 



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# File 'lib/xamplr/to-ruby.rb', line 171

def to_ruby(thing, depth=0, name="root")
  thing.accessed

  @obj_count = 0
  @map = {}
  @lookup_map={}

  @map[thing] = name

  if $USE_A_PROC then
    return %Q{
module XamplRubyDefinition
  @@proc = Proc.new { | target |
#{name} = target ? target : #{thing.class.to_s}.new
#{show_attributes(thing, name, depth)}
    #{show_children_flat(thing, name, depth)}
    #{show_children_stitch_start(thing, depth)}
    #{name}
  }
end
}
  else
    return %Q{
module XamplRubyDefinition
  def XamplRubyDefinition.build_it(target)
#{name} = target ? target : #{thing.class.to_s}.new
#{show_attributes(thing, name, depth)}
    #{show_children_flat(thing, name, depth)}
    #{show_children_stitch_start(thing, depth)}
    #{name}
  end
end
}
  end
end

#to_ruby_as_attr(thing, depth, name) ⇒ Object 



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# File 'lib/xamplr/to-ruby.rb', line 207

def to_ruby_as_attr(thing, depth, name)
  thing.accessed

  @map[thing] = name

  return %Q{
  #{name} = #{thing.class.name}.new
#{show_attributes(thing, name, depth)}
  #{show_children_flat(thing, name, depth)}
  #{show_children_stitch_start(thing, depth)}
  }
end