diff options
Diffstat (limited to 'ruby_1_9_3/lib/rake/cloneable.rb')
| -rw-r--r-- | ruby_1_9_3/lib/rake/cloneable.rb | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/ruby_1_9_3/lib/rake/cloneable.rb b/ruby_1_9_3/lib/rake/cloneable.rb new file mode 100644 index 0000000000..19c780bff6 --- /dev/null +++ b/ruby_1_9_3/lib/rake/cloneable.rb @@ -0,0 +1,25 @@ +module Rake + # ########################################################################## + # Mixin for creating easily cloned objects. + # + module Cloneable + # Clone an object by making a new object and setting all the instance + # variables to the same values. + def dup + sibling = self.class.new + instance_variables.each do |ivar| + value = self.instance_variable_get(ivar) + new_value = value.clone rescue value + sibling.instance_variable_set(ivar, new_value) + end + sibling.taint if tainted? + sibling + end + + def clone + sibling = dup + sibling.freeze if frozen? + sibling + end + end +end |