Module: Origami::HintTable

Included in:
PageOffsetTable, SharedObjectTable
Defined in:
lib/origami/linearization.rb

Defined Under Namespace

Modules: ClassMethods Classes: PageOffsetTable, SharedObjectTable

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#entries ⇒ Object

Returns the value of attribute entries.



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# File 'lib/origami/linearization.rb', line 174

def entries
  @entries
end

#header_items ⇒ Object

Returns the value of attribute header_items.



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# File 'lib/origami/linearization.rb', line 173

def header_items
  @header_items
end

Class Method Details

.included(receiver) ⇒ Object 



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# File 'lib/origami/linearization.rb', line 167

def self.included(receiver)
  receiver.instance_variable_set(:@header_items_size, {})
  receiver.instance_variable_set(:@entry_items_size, {})
  receiver.extend(ClassMethods)
end

Instance Method Details

#initialize ⇒ Object 



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# File 'lib/origami/linearization.rb', line 176

def initialize
  @header_items = {}
  @entries = []
end

#to_s ⇒ Object 



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# File 'lib/origami/linearization.rb', line 181

def to_s
  data = ""

  nitems = self.class.nb_header_items
  (1..nitems).each do |no|
    unless @header_items.include?(no)
      raise InvalidHintTableError, "Missing item #{no} in header section of #{self.class}"
    end

    value = @header_items[no]
    item_size = self.class.get_header_item_size(no)

    item_size = ((item_size + 7) >> 3) << 3
    item_data = value.to_s(2)
    item_data = "0" * (item_size - item_data.size) + item_data

    data << [item_data].pack("B*")
  end

  nitems = self.class.nb_entry_items
  @entries.each_with_index do |entry, i|
    (1..nitems).each do |no|
      unless entry.include?(no)
        raise InvalidHintTableError, "Missing item #{no} in entry #{i} of #{self.class}"
      end

      value = entry[no]
      item_size = self.class.get_entry_item_size(no)

      item_size = ((item_size + 7) >> 3) << 3
      item_data = value.to_s(2)
      item_data = "0" * (item_size - item_data.size) + item_data

      data << [item_data].pack("B*")
    end
  end

  data
end