Module: Sandbox

Defined in:
lib/sandbox.rb

Constant Summary collapse

@@created_classes =

keep track of the top-level classes we create, so we can destroy only those methods if we get mixed in somewhere

[]

Class Method Summary collapse

Class Method Details

.add_attributes(klass, *attrs) ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
# File 'lib/sandbox.rb', line 11

def self.add_attributes(klass, *attrs)
  self.const_get_from_string(klass).class_eval do
    attr_accessor *attrs

    # set up the 'initialize' method to assign the attributes
    define_method(:initialize) do |*value_hash|
      value_hash = value_hash.first
      value_hash ||= {}
      value_hash.each do |k, v|
        instance_variable_set("@#{k.to_s}", v)
      end
    end
  end
end

.add_class(klass) ⇒ Object 



7
8
9
 
# File 'lib/sandbox.rb', line 7

def self.add_class(klass)
  const_set_from_string(klass)
end

.add_class_method(klass, method_name, proc_obj = nil, &blk) ⇒ Object 



30
31
32
33
34
 
# File 'lib/sandbox.rb', line 30

def self.add_class_method(klass, method_name, proc_obj=nil, &blk)
  singleton = (
  class << self.const_get_from_string(klass); self end)
  singleton.send(:define_method, method_name, proc_obj || blk)
end

.add_method(klass, method_name, proc_obj = nil, &blk) ⇒ Object 



26
27
28
 
# File 'lib/sandbox.rb', line 26

def self.add_method(klass, method_name, proc_obj=nil, &blk)
  self.const_get_from_string(klass).send(:define_method, method_name, proc_obj || blk)
end

.cleanup! ⇒ Object 



36
37
38
 
# File 'lib/sandbox.rb', line 36

def self.cleanup!
  constants.each { |klass| remove_const klass }
end

.const_get_from_string(klass) ⇒ Object 



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

def self.const_get_from_string(klass)
  klass.split("::").inject(self) { |const, klass| const.const_get(klass) }
end

.const_set_from_string(delimited_klasses) ⇒ Object 



52
53
54
55
56
57
58
59
60
 
# File 'lib/sandbox.rb', line 52

def self.const_set_from_string(delimited_klasses)
  # try to const_get before set const_set to avoid "already initialized" warnings
  delimited_klasses.split("::").inject(self) do |const, klass|
    const.constants.collect(&:to_s).include?(klass.to_s) ? const.const_get(klass) : const.const_set(klass, Class.new)
  end

  @@created_classes << delimited_klasses.split("::").first
  @@created_classes.uniq!
end

.created_classes ⇒ Object 



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

def self.created_classes
  @@created_classes
end

.scoop! ⇒ Object 



40
41
42
 
# File 'lib/sandbox.rb', line 40

def self.scoop!
  self.cleanup!
end