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by kps
4 days ago
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> No other object creation API works by copying an existing thing and then modifying it. Clone-and-modify is pretty common in CAD. > You don't create a new file by copying an existing one and then modifying it. Clone-and-modify is almost universal in version control systems. |
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It's closer to copy-on-write. Also, it actually makes sense there because in 99.999% of cases a commit actually is a modified copy of its parent. That isn't true for process spawning.