Custom String Interpolation and Compile-time Interpretation applied to Logging

[clayellis]

Update from @ravikandhadai on this topic:

@ravikandhadai

@clayellis the improvements to Apple-specific os_log APIs detailed in that post is under development. A prototype implementation of the API is now available in stdlib/private directory: https://github.com/apple/swift/tree/master/stdlib/private/OSLog . (The implementation is not yet complete.) Compiler support for optimizing these APIs is mainly implemented by this pass: https://github.com/apple/swift/blob/master/lib/SILOptimizer/Mandatory/OSLogOptimization.cpp. However, neither the optimization pass nor the APIs are stable at this point and is a work in progress. The API names have been changed so they are more aligned with swift-log as discussed in this post: Logging levels for Swift's server-side logging APIs and new os_log APIs.