mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
31 lines
620 B
Ruby
31 lines
620 B
Ruby
class Hash
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def merge!(other, &block)
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raise "can't convert argument into Hash" unless other.respond_to?(:to_hash)
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if block
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other.each_key{|k|
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self[k] = (self.has_key?(k))? block.call(k, self[k], other[k]): other[k]
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}
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else
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other.each_key{|k| self[k] = other[k]}
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end
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self
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end
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alias each_pair each
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alias update merge!
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def fetch(key, none=NONE, &block)
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unless self.key?(key)
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if block
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block.call
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elsif none != NONE
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none
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else
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raise RuntimeError, "Key not found: #{key}"
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end
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else
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self[key]
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end
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end
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end
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