https://bugs.kde.org/show_bug.cgi?id=488885
Bug ID: 488885
Summary: Assertion in ExpressionVisitor::visitListComprehension
when parsing complex expression
Classification: Developer tools
Product: kdev-python
Version: unspecified
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Language support
Assignee: m...@svenbrauch.de
Reporter: frmdst...@protonmail.com
Target Milestone: ---
SUMMARY
I kept seeing a crash and traced it down to when kdevelop parses the file at
https://github.com/horizon-eda/horizon/blob/master/scripts/pybis.py . It hits
the assertion at
https://invent.kde.org/kdevelop/kdev-python/-/blob/master/duchain/expressionvisitor.cpp?ref_type=heads#L478
STEPS TO REPRODUCE
The failing comprehension code is at
https://github.com/horizon-eda/horizon/blob/master/scripts/pybis.py#L1672-L1676.
I copied it here:
```
stub_desc = (
stubKeyword('Len') +"
Each([ Optional(stubKeyword(k)) for k in [ 'L', 'R', 'C' ] ]) -
Suppress(Literal('/') + LineEnd() * (0,))
).setParseAction(lambda f: IBISNode(f.asDict()))
```
OBSERVED RESULT
The assertion that the context is found fails.
EXPECTED RESULT
It should probably just ignore determining the list type when no context is
found? Wrapping that code in an `if(comprehensionContext) {` avoids the
problem.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.0
KDE Plasma Version: 6.0.5
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.0
ADDITIONAL INFORMATION
I'm using the KF6 branches for KDevelop and the kdev-python but that should not
matter.
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