Swiftly-Use: JSON: Handle no selected toolchain#546
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Uninstalling all of the tools in Swiftly and printing the current
toolchain with `swiftly use --format=json` results in swiftly printing
nothing. This is invalid JSON, so tools like the VSCode extension would
emit an error.
Without the fix, the empty JSON passed to the Foundation JSON decoder
emits the following error:
```
Caught error: Error Domain=NSCocoaErrorDomain Code=3840 "Unable to parse empty data." UserInfo={NSDebugDescription=Unable to parse empty data.}
```
Fixes: swiftlang#545
etcwilde
requested review from
cmcgee1024,
justice-adams-apple and
shahmishal
as code owners
plemarquand
approved these changes
May 22, 2026
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Uninstalling all of the tools in Swiftly and printing the current toolchain with
swiftly use --format=jsonresults in swiftly printing nothing. This is invalid JSON, so tools like the VSCode extension would emit an error.Without the fix, the empty JSON passed to the Foundation JSON decoder emits the following error:
fixes: #545