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#131 – Chris Lattner: The Future of Computing and Programming Languages
Lex Fridman Podcast
Using Swift to Provide Value Semantics
Swift uses a thing called copy on right, which means that you get the benefit of safety and performance. It has another special trick because if you think certain languages like Java, for example, they have immutable strings. And so when you pass this around to different parts of your program, you don't have to do these defensive copies. That's great because you define away the bug, which is a big deal for productivity.
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