38 lines
472 B
Ruby
38 lines
472 B
Ruby
|
class Object
|
||
|
# Can you safely .dup this object?
|
||
|
# False for nil, false, true, symbols, and numbers; true otherwise.
|
||
|
def duplicable?
|
||
|
true
|
||
|
end
|
||
|
end
|
||
|
|
||
|
class NilClass #:nodoc:
|
||
|
def duplicable?
|
||
|
false
|
||
|
end
|
||
|
end
|
||
|
|
||
|
class FalseClass #:nodoc:
|
||
|
def duplicable?
|
||
|
false
|
||
|
end
|
||
|
end
|
||
|
|
||
|
class TrueClass #:nodoc:
|
||
|
def duplicable?
|
||
|
false
|
||
|
end
|
||
|
end
|
||
|
|
||
|
class Symbol #:nodoc:
|
||
|
def duplicable?
|
||
|
false
|
||
|
end
|
||
|
end
|
||
|
|
||
|
class Numeric #:nodoc:
|
||
|
def duplicable?
|
||
|
false
|
||
|
end
|
||
|
end
|