Class: Jsof::WrapArray

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/jsof/wrap_array.rb

Overview

Wrapper class for Array.

Instance Method Summary collapse

Constructor Details

#initialize(obj = [], typeof_element: nil) ⇒ WrapArray

Create wrapper for Array

Parameters:

  • (defaults to: [])

    Wrap target array

  • (defaults to: nil)

    Type of each element



7
8
9
10
11
 
# File 'lib/jsof/wrap_array.rb', line 7

def initialize(obj = [], typeof_element: nil)
  @internal_object = obj
  @wrapped = []
  @typeof_element = typeof_element
end

Instance Method Details

#[](index) ⇒ Object

Raises:



22
23
24
25
26
27
28
29
30
31
 
# File 'lib/jsof/wrap_array.rb', line 22

def [](index)
  raise ArgumentError unless index.is_a? Integer

  return @wrapped[index] if @wrapped[index]

  elem = @internal_object[index]
  boxed = Jsof::WrapHelper.boxing(elem, typeof_element)
  @wrapped[index] = boxed if elem != boxed
  return boxed
end

#[]=(index, val) ⇒ Object

Raises:



33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/jsof/wrap_array.rb', line 33

def []=(index, val)
  raise ArgumentError unless index.is_a? Integer

  if typeof_element
    raise TypeError unless Jsof::WrapHelper.assignable?(typeof_element, val)
  end

  boxed = Jsof::WrapHelper.boxing(val, typeof_element)
  @wrapped[index] = boxed if Jsof::WrapHelper.wrapped_value?(boxed)
  @internal_object[index] = Jsof::WrapHelper.unboxing(val)
  val
end

#clear_internal ⇒ Object

Clean internal cache. Call this after you changed wrapped object directly.



48
49
50
 
# File 'lib/jsof/wrap_array.rb', line 48

def clear_internal
  @wrapped.clear
end

#delete_at(pos) ⇒ Object

Delete element. (Same as Array#delete_at)

Parameters:

  • Element index to delete



59
60
61
62
 
# File 'lib/jsof/wrap_array.rb', line 59

def delete_at(pos)
  @internal_object.delete_at(pos)
  @wrapped.delete_at(pos)
end

#each ⇒ Object 



65
66
67
68
69
70
71
72
73
 
# File 'lib/jsof/wrap_array.rb', line 65

def each
  if block_given?
    for i in 0...@internal_object.size
      yield self[i]
    end
  else
    Enumerator.new(self, :each)
  end
end

#internal_object ⇒ Object

Return reference to wrapped array.



14
15
16
 
# File 'lib/jsof/wrap_array.rb', line 14

def internal_object
  @internal_object
end

#size ⇒ Integer

Returns:



53
54
55
 
# File 'lib/jsof/wrap_array.rb', line 53

def size
  @internal_object.size
end

#to_a ⇒ Object

Return reference to wrapped array.



81
82
83
 
# File 'lib/jsof/wrap_array.rb', line 81

def to_a
  @internal_object
end

#to_ary ⇒ Object

Return reference to wrapped array.



76
77
78
 
# File 'lib/jsof/wrap_array.rb', line 76

def to_ary
  @internal_object
end

#typeof_element ⇒ Object 



18
19
20
 
# File 'lib/jsof/wrap_array.rb', line 18

def typeof_element
  @typeof_element
end