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Fix crash in Python backend when using empty docstrings

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Due to confusion in build_combined_docstring(), we could call
DohDelete() on the "feature:docstring" string, which resulted in a crash
when trying to use it later.

Fix this and simplify the code at the same time by ensuring that we
always use a copy of "feature:docstring" if it's not empty or don't use
it at all if it's empty -- like this we don't have to check for its
length each time before using it.

Closes #1648.
This commit is contained in:
Vadim Zeitlin 2020-01-25 17:06:20 +01:00
commit e14532ce52
3 changed files with 22 additions and 4 deletions
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2
Examples/test-suite/python/autodoc_runme.py
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@ -279,3 +279,5 @@ check(inspect.getdoc(process3), "process3(int _from, int _in, int var) -> int")
check(inspect.getdoc(process4), "process4(int _from=0, int _in=1, int var=2) -> int")
check(inspect.getdoc(process_complex_defval), "process_complex_defval(val=PROCESS_DEFAULT_VALUE, factor=some_type(-1)) -> int")
check(inspect.getdoc(a_structure.__init__), "__init__(a_structure self) -> a_structure", None, skip)