public
Description: An experiment in publishing code and words about code on a small scale.
Homepage: http://github.com/raganwald/homoiconic/tree/master/homoiconic.markdown
Clone URL: git://github.com/raganwald/homoiconic.git
Click here to lend your support to: homoiconic and make a donation at www.pledgie.com !
raganwald (author)
Wed Dec 09 10:06:39 -0800 2009
commit  6d148bcad5b59d8eb73e9291f29806cdce55847d
tree    2124c471296e31b948a91bc127bd4c929d269f31
parent  698bf04a5aeddfaae6f4fcc3439f1bd4959675c4
homoiconic / 2008-11-04 / quirky_bird.rb
100644 47 lines (44 sloc) 1.935 kb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
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
# The MIT License
#
# All contents Copyright (c) 2004-2008 Reginald Braithwaite
# <http://reginald.braythwayt.com> except as otherwise noted.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# http://www.opensource.org/licenses/mit-license.php
  
def quirky_bird_define(name, &value_proc)
  define_method_taking_block(name) do |a_value, a_proc|
    a_proc.call(value_proc.call(a_value))
  end
end
 
# method_body_proc should expect (a_value, a_proc)
# see http://coderrr.wordpress.com/2008/10/29/using-define_method-with-blocks-in-ruby-18/
def define_method_taking_block(name, &method_body_proc)
  self.class.send :define_method, "__quirky_bird_helper_#{name}__", method_body_proc
  eval <<-EOM
def #{name}(a_value, &a_proc)
__quirky_bird_helper_#{name}__(a_value, a_proc)
end
EOM
end
  
def quirky_bird_extend(name, &value_proc)
  Object.send(:define_method, name) do
    value_proc.call(self)
  end
end