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by rkunde
2642 days ago
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It would have to be opaque as there is no backing allocation of any kind so the string can’t provide a pointer to the contiguous memory. (Plus tagged strings use an encoding scheme that makes the incompatible with UTF-8 anyway) It’s possible that a smallstring version of the tagged pointer is created in some situations. SmallString actually was just a tagged cocoa string at one point but that was removed in favor of more powerful implementations. The latest implementation allocates no memory on the heap either but can store more characters, so using a tagged pointer would be a step back. |
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