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Fix stacktrace mangling in patch_inline_callbacks
(#7554)
`Failure()` is more cunning than `Failure(e)`.
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changelog.d/7554.misc
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changelog.d/7554.misc
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Fix some test code to not mangle stacktraces, to make it easier to debug errors.
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@ -186,10 +186,15 @@ def _check_yield_points(f: Callable, changes: List[str]):
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)
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raise Exception(err)
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# the wrapped function yielded a Deferred: yield it back up to the parent
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# inlineCallbacks().
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try:
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result = yield d
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except Exception as e:
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result = Failure(e)
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except Exception:
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# this will fish an earlier Failure out of the stack where possible, and
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# thus is preferable to passing in an exeception to the Failure
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# constructor, since it results in less stack-mangling.
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result = Failure()
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if current_context() != expected_context:
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