Awesome

method_reload

(C) John Mair (banisterfiend) 2011

fine grained code reloading

method_reload enables you to reload method code on the fly. It precisely targets the code of the method - it does not reload the entire file.

method_reload provides the Method#reload and UnboundMethod#reload methods.

• Install the gem: gem install method_reload
• Read the documentation
• See the source code

Example: Example

class Hello
  def hello
    puts "hello world"
  end
end

Hello.new.hello #=> "hello world"

# file edited here and "hello world" changed to "goodbye"

# now we reload
Hello.instance_method(:hello).reload

# now we test
Hello.new.hello #=> "goodbye"

Features and limitations

Features:

• Only reloads the code for the method.
• Works with any kind of method: class methods, instance methods.
• Works in MRI 1.8 and 1.9, Rubinius, and JRuby running Ruby 1.9

Limitations:

• Updated method definition must start on exactly the same line as the original. This limitation will be overcome in a later version.

• Not tested in JRuby with 1.9 support, but should work. Will not work in JRuby running Ruby 1.8.

• No tests, coming soon!

Contact

Problems or questions contact me at github

License

(The MIT License)

Copyright (c) 2011 John Mair (banisterfiend)

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.