wti/SE0415Demo

SE0415Demo

• SE-0415 function body macro proposal
• SE-0415 function body macro discussion on swift forum

Status

• Minimal demo and test of preamble and body macro adapted from PR tests

Getting started

• Download and install trunk/main toolchain snapshot
• Clone this git repository locally
• Building in Xcode:
  • Select toolchain (Xcode/toolchains) before building

Tips

• swiftSettings: [ .enableExperimentalFeature("BodyMacros")] on each Package.swift target
• @_spi() import ... on client code

Known issues

• (Search for TODO: P1 to find comment tags)
• P1 Macro names not seen from client module?
  • workaround: declare in client
  • possibly d/t @_spi
• P1 Body macro statements duplicated, resulting in dangling closure
• Excess Tests/MacroChecks helpful but not required

Development

• // Source: indicates code copied from and copyrighted by Apple