diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/class/removal.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/class/removal.rb | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/activesupport/lib/active_support/core_ext/class/removal.rb b/activesupport/lib/active_support/core_ext/class/removal.rb deleted file mode 100644 index 652be4ed78..0000000000 --- a/activesupport/lib/active_support/core_ext/class/removal.rb +++ /dev/null @@ -1,57 +0,0 @@ -require 'active_support/core_ext/object/extending' -require 'active_support/core_ext/module/introspection' - -class Class #:nodoc: - - def reachable? - eval("defined?(::#{self}) && ::#{self}.equal?(self)") - end - - # Unassociates the class with its subclasses and removes the subclasses - # themselves. - # - # Integer.remove_subclasses # => [Bignum, Fixnum] - # Fixnum # => NameError: uninitialized constant Fixnum - def remove_subclasses - Object.remove_subclasses_of(self) - end - - # Returns an array with the names of the subclasses of +self+ as strings. - # - # Integer.subclasses # => ["Bignum", "Fixnum"] - def subclasses - Object.subclasses_of(self).map { |o| o.to_s } - end - - # Removes the classes in +klasses+ from their parent module. - # - # Ordinary classes belong to some module via a constant. This method computes - # that constant name from the class name and removes it from the module it - # belongs to. - # - # Object.remove_class(Integer) # => [Integer] - # Integer # => NameError: uninitialized constant Integer - # - # Take into account that in general the class object could be still stored - # somewhere else. - # - # i = Integer # => Integer - # Object.remove_class(Integer) # => [Integer] - # Integer # => NameError: uninitialized constant Integer - # i.subclasses # => ["Bignum", "Fixnum"] - # Fixnum.superclass # => Integer - def remove_class(*klasses) - klasses.flatten.each do |klass| - # Skip this class if there is nothing bound to this name - next unless defined?(klass.name) - - basename = klass.to_s.split("::").last - parent = klass.parent - - # Skip this class if it does not match the current one bound to this name - next unless parent.const_defined?(basename) && klass = parent.const_get(basename) - - parent.instance_eval { remove_const basename } unless parent == klass - end - end -end |