gh-104683: Rework Argument Clinic error handling #107551
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- Introduce ClinicError and ClinicWarning - fail() raises ClinicError - warn() uses warnings.warn(msg, ClinicWarning) - the CLI runs main(), catches ClinicError, formats the error message prints to stderr and exits with an error - adapt the test suite to work with ClinicError
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Ready for a new round of review! Finally, all (or most) line number are now correct. If I introduce an error in Lib/test/clinic.test.c, I now get an accurate line number. Yay! I'm not sure why some of the tests are off by one, though. Perhaps it has to do with FakeClinic. |
Tools/clinic/clinic.py
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| try: | ||
| self.state(line) | ||
| except ClinicError as exc: | ||
| raise ClinicError(str(exc), filename=exc.filename, lineno=line_number) |
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IMO, this is a workaround! We should ensure that line numbers are correctly updated in the state machine. Let's create an issue about this.
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I'd like to keep the workaround for now; it really helps to have accurate line numbers when debugging.
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
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I had an idea for how to deduplicate some code between |
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Great, thank you; this PR is in a lot better shape now 😄 |
Introduce ClinicError and ClinicWarning:
In main(), catch ClinicError, format the error message,
print to stderr, and exit with an error. Adapt the test
suite accordingly.
Tools/clinic/#104683