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2180f535d8
When an inlined comprehension's first iterator expression contains
nested scopes (such as a lambda), those scopes' sub_tables appear at the
current position in the parent's sub_table list. The previous code
spliced the comprehension's own child sub_tables (e.g. inner inlined
comprehensions) into that same position before compiling the iterator,
which shifted the iterator's sub_tables to wrong indices.
Move the splice after the first iterator is compiled so its sub_tables
are consumed at their original positions.
Fixes nested list comprehensions like:
```python
[[x for _, x in g] for _, g in itertools.groupby(..., lambda x: ...)]
```
Disclosure: I used AI to develop the patch though I was heavily
involved.
Test snippets
This directory contains two sets of test snippets which can be run in Python.
The snippets/ directory contains functional tests, and the benchmarks/
directory contains snippets for use in benchmarking RustPython's performance.
Setup
Our testing depends on pytest, which you can install using pip.
Running
Simply run pytest -v in this directory, and the tests should run (and hopefully
pass). If it hangs for a long time, that's because it's building RustPython in
release mode, which should take less time than it would to run every test
snippet with RustPython compiled in debug mode.