Fix panic in split_imports assist #4057
Merged
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The fix is admittedly quit literally just papering over.
Long-term, I see two more principled approaches:
we switch to a fully tree-based impl, without parse . to_string
step; with this approach, there shouldn't be any panics. The results
might be nonsensical, but so was the original input.
we preserve the invariant that re-parsing constructed node is an
identity, and make all the
make_xxx
method return anOption
.closes #4044
bors r+
🤖