# File lib/backports/1.8.7/hash/constructor.rb, line 6 def [](*args) if args.length == 1 arg = args.first if (h = Backports.try_convert(arg, Hash, :to_hash)) return allocate.replace(h) end if (kvps = Backports.is_array?(arg)) h = {} kvps.each do |elem| next unless arr = Backports.is_array?(elem) next unless (1..2).include? arr.size h[arr.at(0)] = arr.at(1) end return h end end constructor_without_key_value_pair_form(*args) end
# File lib/backports/1.9.1/hash/try_convert.rb, line 4 def Hash.try_convert(x) Backports.try_convert(x, Hash, :to_hash) end
# File lib/backports/1.9.1/hash/assoc.rb, line 3 def assoc(key) val = fetch(key) do return find do |k, v| [k, v] if k == key end end [key, val] end
# File lib/backports/1.9.1/hash/default_proc.rb, line 5 def default_proc=(proc) if proc == nil # nil accepted in Ruby 2.0 self.default = nil self else replace(Hash.new(&Backports.coerce_to(proc, Proc, :to_proc)).merge!(self)) end end
# File lib/backports/2.0.0/hash/default_proc.rb, line 6 def default_proc_with_nil=(proc) if proc == nil self.default = nil self else self.default_proc_without_nil=(proc) end end
# File lib/backports/1.8.7/hash/hash.rb, line 10 def eql?(other) other.is_a?(Hash) && size == other.size && all? do |key, value| value.eql?(other.fetch(key){return false}) end end
# File lib/backports/1.8.7/hash/hash.rb, line 2 def hash h = 0 each do |key, value| h ^= key.hash ^ value.hash end h end
# File lib/backports/1.9.2/hash/keep_if.rb, line 3 def keep_if return to_enum(:keep_if) unless block_given? delete_if{|key, value| ! yield key, value} end
# File lib/backports/1.9.1/hash/rassoc.rb, line 3 def rassoc(value) k = key(value) v = fetch(k){return nil} [k, fetch(k)] if k || v == value end
Standard in rails. See official documentation
# File lib/backports/rails/hash.rb, line 3 def reverse_merge(other_hash) other_hash.merge(self) end
Standard in rails. See official documentation
# File lib/backports/rails/hash.rb, line 8 def reverse_merge!(other_hash) replace(reverse_merge(other_hash)) end
# File lib/backports/1.9.2/hash/select.rb, line 3 def select! return to_enum(:select!) unless block_given? raise "can't modify frozen hash" if frozen? # reject! won't do it for empty hashes... reject!{|key, value| ! yield key, value} end
# File lib/backports/force/hash_select.rb, line 4 def select_with_hash_return return to_enum(:select) unless block_given? Hash[select_without_hash_return{|k, v| yield [k, v]}] end
Standard in rails. See official documentation
# File lib/backports/rails/hash.rb, line 23 def stringify_keys Hash[map{|key,value| [key.to_s, value] }] end
Standard in rails. See official documentation
# File lib/backports/rails/hash.rb, line 28 def stringify_keys! self.replace(self.stringify_keys) end
Standard in rails. See official documentation
# File lib/backports/rails/hash.rb, line 13 def symbolize_keys Hash[map{|key,value| [(key.to_sym rescue key) || key, value] }] end
Standard in rails. See official documentation
# File lib/backports/rails/hash.rb, line 18 def symbolize_keys! self.replace(self.symbolize_keys) end
# File lib/backports/2.0.0/hash/to_h.rb, line 3 def to_h self.class == Hash ? self : {}.replace(self) end