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class Object #:nodoc:
def remove_subclasses_of(*superclasses)
subclasses_of(*superclasses).each do |subclass|
subclass.instance_variables.each { |v| subclass.send(:remove_instance_variable, v) }
Object.send(:remove_const, subclass.to_s) rescue nil
end
end
def remove_instance_variables_of(klass)
ObjectSpace.each_object(Class) do |k|
if k.to_s == klass
k.instance_variables.each { |v| k.send(:remove_instance_variable, v) }
end
end
end
def subclasses_of(*superclasses)
subclasses = []
ObjectSpace.each_object(Class) do |k|
next if (k.ancestors & superclasses).empty? || superclasses.include?(k) || k.to_s.include?("::") || subclasses.include?(k)
subclasses << k
end
subclasses
end
# "", " ", nil, and 0 are all blank
def blank?
if respond_to?(:empty?) && respond_to?(:strip)
strip.empty?
elsif respond_to? :empty?
empty?
elsif respond_to? :zero?
zero?
else
!self
end
end
def suppress(*exception_classes)
begin yield
rescue Exception => e
raise unless exception_classes.any? {|cls| e.kind_of? cls}
end
end
end
class Class #:nodoc:
def remove_subclasses
Object.remove_subclasses_of(self)
end
def subclasses
Object.subclasses_of(self).map { |o| o.to_s }
end
end
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