Created
May 30, 2018 08:10
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| def is_nil?(value) | |
| result = true | |
| value&.__id__(result = false) | |
| result | |
| rescue | |
| result | |
| end | |
| TracePoint.new(:line) do |tp| | |
| p tp | |
| tp.binding.local_variable_set :result, false if tp.lineno == 4 | |
| end.enable | |
| p is_nil? nil |
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