Class: Gogyou::Model::Array

Inherits:
Gogyou::Model show all
Defined in:
lib/gogyou/model.rb

Overview

C の配列を模造するクラス。

Constant Summary

Constants inherited from Gogyou::Model

BasicStruct, FIELDNAME_PATTERN, TYPEMAP

Instance Method Summary collapse

Methods inherited from Gogyou::Model

check_typeinfo, define_container, #initialize, #pretty_print, struct, #to_s, typedef, union

Constructor Details

This class inherits a constructor from Gogyou::Model

Instance Method Details

#aref(buffer, offset) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/gogyou/model.rb', line 500

def aref(buffer, offset)
  raise NotImplementedError
  accessor = Accessor::Array[buffer, offset, self]
  accessor.instance_eval do
    field = fields[0]
    type = field.type
    elements = field.vector[-1]

    define_singleton_method(:check_index, ->(i) {
      i = i.to_i
      raise IndexError unless i >= 0 && (elements.nil? || i < elements)
      i
    })

    define_singleton_method(:[], ->(i) {
      v = type.aref(buffer__GOGYOU__, offset__GOGYOU__ + type.bytesize * check_index(i))
      v.infect_from(self, buffer) unless v.frozen?
      v.freeze if frozen? || buffer.frozen? || field.const?
      v
    })

    define_singleton_method(:[]=, ->(i, v) {
      type.aset(buffer__GOGYOU__, offset__GOGYOU__ + type.bytesize * check_index(i), v)
    })
  end
  accessor
end

#aset(buffer, offset, value) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/gogyou/model.rb', line 496

def aset(buffer, offset, value)
  raise NotImplementedError
end

#extensible? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gogyou/model.rb', line 492

def extensible?
  fields[-1] == 0 ? true : false
end