Class: Class

Inherits:
Object
  • Object
show all
Defined in:
lib/class.rb

Instance Method Summary collapse

Instance Method Details

#cattr_accessor(*syms, &blk) ⇒ Object 



44
45
46
47
 
# File 'lib/class.rb', line 44

def cattr_accessor(*syms, &blk)
  cattr_reader(*syms)
  cattr_writer(*syms, &blk)
end

#cattr_reader(*syms) ⇒ Object 



2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
# File 'lib/class.rb', line 2

def cattr_reader(*syms)
  syms.flatten.each do |sym|
    next if sym.is_a?(Hash)
    class_eval(<<-RUBY, __FILE__, __LINE__ + 1)
      unless defined? @@#{sym}
        @@#{sym} = nil
      end

      def self.#{sym}
        @@#{sym}
      end

      def #{sym}
        @@#{sym}
      end
    RUBY
  end
end

#cattr_writer(*syms) ⇒ Object 



21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/class.rb', line 21

def cattr_writer(*syms)
  options = syms.last.is_a?(Hash) ? syms.pop : {}
  syms.flatten.each do |sym|
    class_eval(<<-RUBY, __FILE__, __LINE__ + 1)
      unless defined? @@#{sym}
        @@#{sym} = nil
      end

      def self.#{sym}=(obj)
        @@#{sym} = obj
      end
    RUBY

    unless options[:instance_writer] == false
      class_eval(<<-RUBY, __FILE__, __LINE__ + 1)
        def #{sym}=(obj)
          @@#{sym} = obj
        end
      RUBY
    end
  end
end