Opening a Swift script (per the run line) should provide code completion and everything

Number:rdar://FB8734022 Date Originated:2020-09-23
Status:Open Resolved:
Product:Xcode Product Version:11.5 (11E608c)
Classification:Suggestion Reproducible:
SwiftPM support in Xcode is amazing, but sometimes I just have a single-file script that I don’t want to turn into a package. It would be nice™ if Xcode could implicitly treat those /like/ a package with minimal configuration though, in order to allow code completion and such when editing those scripts. You could detect any combination of #! lines:

#!/usr/bin/env swift
#!/usr/bin/xcrun swift


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