Earlier quoted context omitted.
Thats not the only thing, no? Doesn't it also prevent e.g. other people/company from including that feature in their own programming language that doesn't use Swift at all?
--edit-- see below comments.. this may not be so simple. No. The Apache License 2.0 does not work that way. You are allowed to copy and use everything in the Swift language to your own liking in a similar manner to the MIT and BSD permissive licenses. However if you then try and begin a lawsuit against Apple for anything in what you copied, your rights are terminated, therefore invalidating your suit. The Apache Lice…
So if you implement the claims of the patent in something that isn't derived from the Swift code you are not covered under The Apache license.