Class: Fiddle::Pointer

Inherits:
Object
  • Object
show all
Defined in:
lib/rbbcc/fiddle_ext.rb,
lib/rbbcc/clib.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *a) ⇒ Object 



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# File 'lib/rbbcc/fiddle_ext.rb', line 25

def method_missing(name, *a)
  fields = \
    if self.respond_to?(:bcc_value_type) && \
       self.bcc_value_type.respond_to?(:fields)
      self.bcc_value_type.fields.map{|v| v.split.last.to_sym }
    else
      nil
    end
  return super unless fields

  if fields.include?(name) && bcc_value.respond_to?(name)
    bcc_value.send(name)
  else
    super
  end
end

Instance Attribute Details

#bcc_size ⇒ Object 



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# File 'lib/rbbcc/fiddle_ext.rb', line 44

def bcc_size
  @bcc_size || self.size
end

#bcc_value_type ⇒ Object

Returns the value of attribute bcc_value_type.



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# File 'lib/rbbcc/fiddle_ext.rb', line 42

def bcc_value_type
  @bcc_value_type
end

Instance Method Details

#_bcc_value ⇒ Object 



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# File 'lib/rbbcc/fiddle_ext.rb', line 10

def _bcc_value
  if self.bcc_value_type.is_a?(Class)
    return self.bcc_value_type.new(self)
  end

  case self.bcc_size
  when Fiddle::Importer.sizeof("int")
    self[0, self.size].unpack("i!").first
  when Fiddle::Importer.sizeof("long")
    self[0, self.size].unpack("l!").first
  else
    self[0, self.size].unpack("Z*").first
  end
end

#bcc_value ⇒ Object Also known as: to_bcc_value 



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# File 'lib/rbbcc/fiddle_ext.rb', line 5

def bcc_value
  @bcc_value ||= _bcc_value
end

#to_extracted_char_ptr ⇒ Object 



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# File 'lib/rbbcc/clib.rb', line 185

def to_extracted_char_ptr
  RbBCC::Clib.__extract_char(self)
end