While I haven’t reviewed the videos in full I noticed a similar approach being taken in Rust where some more ambitious work is being done by the core team in libraries that use compiler plugins (https://doc.rust-lang.org/stable/book/compiler-plugins.html <https://doc.rust-lang.org/stable/book/compiler-plugins.html>) such as regular expressions (https://doc.rust-lang.org/regex/regex/index.html <https://doc.rust-lang.org/regex/regex/index.html>). In the latter case even throwing compilation errors if the source file contains an invalid regular expression.
I suppose however that this is at best a Swift 3.1 feature to expose such interfaces once the dust from Swift 3 has settled. I may also be wrong that this is not a goal for Swift in the medium term at all. Seán > On 22 Dec 2015, at 23:29, Matt Whiteside via swift-evolution > <[email protected] > <mailto:[email protected]>> wrote: > > I don’t know if something like this has been done before, but I agree, the > idea of the compile time version of the language being the same same as the > runtime version, is very interesting. +1. > > Matt
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