Module: MetaProgrammable

Included in:
Most::Box, Most::Submission, Most::TestCase, Most::TestRunner
Defined in:
lib/most/interfaces/meta_programmable.rb

Overview

Most - Modular Open Software Tester.

Copyright (C) 2009  Dmitrii Toksaitov

This file is part of Most.

Most is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Most is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Most. If not, see <http://www.gnu.org/licenses/>.

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object 



20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
 
# File 'lib/most/interfaces/meta_programmable.rb', line 20

def method_missing(name, *args, &block)
  result = nil

  name = '@' + name.to_s().strip()
  value_required = false

  if name[-1] == ?=
    name = name[0..-2]
    value_required = true
  end

  if instance_variable_defined?(name)
    if args.empty? and value_required
      raise(ArgumentError, "Wrong number of arguments (#{args.length} for 1)")
    end

    block_was_used = false
    if args.empty?
      result = instance_variable_get(name)
    else
      if args.size == 1
        if args.first.is_a?(Class) and block_given?
          block_was_used = true
          result = instance_variable_set(name, args.first.new(&block))
        else
          result = instance_variable_set(name, args.first)
        end
      else
        result = instance_variable_set(name, args)
      end
    end
  else
    raise(NameError, "Instance variable '#{name}' is not defined")
  end

  instance_eval(&block) if block_given? and not block_was_used
  
  result
end