Include Hash::_Key interface in Object for correct key? typecheck#426
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Include Hash::_Key interface in Object for correct key? typecheck#426
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Hash#has_key? accepts _Key interface (hash + eql?) rather than the hash's key type parameter. Adding Object include _Key ensures that any object can be passed to key?/has_key?/include?/member? without type errors. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Hash#has_key? accepts _Key interface (hash + eql?) rather than the hash's key type parameter. Adding Object include _Key ensures that any object can be passed to key?/has_key?/include?/member? without type errors.