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Contents
#!/usr/bin/env ruby
# -*- encoding: utf-8 -*-
# Copyright Steffi Dorn <mail@muflax.com>, 2017
# License: GNU APGLv3 (or later) <http://www.gnu.org/copyleft/gpl.html>
class Object
def deep_dup
duplicable? ? dup : self
end
end
class Array
def deep_dup
map(&:deep_dup)
end
end
class Hash
def deep_dup
hash = dup
each_pair do |key, value|
if key.frozen? && ::String === key
hash[key] = value.deep_dup
else
hash.delete(key)
hash[key.deep_dup] = value.deep_dup
end
end
hash
end
end
# duplicable?
require "bigdecimal"
class Object ; def duplicable? ; true ; end ; end
class BigDecimal ; def duplicable? ; true ; end ; end
class Method ; def duplicable? ; false ; end ; end
class NilClass ; begin ; nil.dup ; rescue TypeError ; def duplicable? ; false ; end ; end ; end
class FalseClass ; begin ; false.dup ; rescue TypeError ; def duplicable? ; false ; end ; end ; end
class TrueClass ; begin ; true.dup ; rescue TypeError ; def duplicable? ; false ; end ; end ; end
class Symbol ; begin ; :symbol.dup; "symbol_from_string".to_sym.dup ; rescue TypeError ; def duplicable? ; false ; end ; end ; end
class Numeric ; begin ; 1.dup ; rescue TypeError ; def duplicable? ; false ; end ; end ; end
class Complex ; begin ; Complex(1).dup ; rescue TypeError ; def duplicable? ; false ; end ; end ; end
class Rational ; begin ; Rational(1).dup ; rescue TypeError ; def duplicable? ; false ; end ; end ; end
Version data entries
15 entries across 15 versions & 1 rubygems