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chechaoyang/ruby_symbol_gc

Created July 27, 2012 04:31
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Ruby Symbol Garbage Collection
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ruby_symbol_gc
1.9.3p194 :005 > hash = { test_symbol_gc: "test" }
=> {:test_symbol_gc=>"test"}
1.9.3p194 :006 > Symbol.all_symbols.find { |s| s.to_s == "test_symbol_gc" }
=> :test_symbol_gc
1.9.3p194 :007 > hash = nil
=> nil
1.9.3p194 :008 > GC.start
=> nil
1.9.3p194 :009 > Symbol.all_symbols.find { |s| s.to_s == "test_symbol_gc" }
=> :test_symbol_gc
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