Module | Sass::Callbacks |
In: |
lib/sass/callbacks.rb
|
A lightweight infrastructure for defining and running callbacks. Callbacks are defined using \{define_callback\} at the class level, and called using `run_#{name}` at the instance level.
Clients can add callbacks by calling the generated `on_#{name}` method, and passing in a block that‘s run when the callback is activated.
@example Define a callback class Munger
extend Sass::Callbacks define_callback :string_munged def munge(str) res = str.gsub(/[a-z]/, '\1\1') run_string_munged str, res res end
end
@example Use a callback m = Munger.new m.on_string_munged {|str, res| puts "#{str} was munged into #{res}!"} m.munge "bar" #=> bar was munged into bbaarr!