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arangodb/3rdParty/mruby/mrblib/hash.rb

59 lines
1.0 KiB
Ruby

#
# Hash
#
class Hash
# 15.2.13.4.8
def delete(key, &block)
if block && ! self.has_key?(key)
block.call(key)
else
self.__delete(key)
end
end
# 15.2.13.4.9
def each(&block)
self.keys.each{|k| block.call([k, self[k]])}
self
end
# 15.2.13.4.10
def each_key(&block)
self.keys.each{|k| block.call(k)}
self
end
# 15.2.13.4.11
def each_value(&block)
self.keys.each{|k| block.call(self[k])}
self
end
# 15.2.13.4.16
def initialize(*args, &block)
self.__init_core(block, *args)
end
# 15.2.13.4.22
def merge(other, &block)
h = {}
raise "can't convert argument into Hash" unless other.respond_to?(:to_hash)
other = other.to_hash
self.each_key{|k| h[k] = self[k]}
if block
other.each_key{|k|
h[k] = (self.has_key?(k))? block.call(k, self[k], other[k]): other[k]
}
else
other.each_key{|k| h[k] = other[k]}
end
h
end
end
# include modules
module Enumerable; end
class Hash
include Enumerable
end