ilya-biryukov added inline comments.
================
Comment at: clangd/CodeComplete.cpp:457
Result.StartsNestedNameSpecifier = false;
+ // FIXME: the same result can be added multiple times as the callback can
+ // be called more than once. We may want to deduplicate identical
results.
----------------
Could we fix this in the first attempt?
All the code around completion is really not prepared for multiple callbacks:
index will be queried multiple times, we will store and log only the last
CCContext, not all of them, etc.
I'd argue we should aim to either provide a single-callback completion or
rewrite the whole code around completion to properly handle multiple callbacks
(i.e. with deduplication and proper merging of the results coming from multiple
callbacks, proper logging, no multiple identical requests to the index).
I would suggest the following measures as a hacky intermediate solution:
- Ignore natural language completion. The rationale: VSCode does analogous
completion on empty results anyway, AFAIK clang does not provide any useful
results on top of that. Other clients that we have can (and should?) probably
do the same.
- Only record the first non-natural language completion attempt. Ignore the
rest and log the failed attempts.
Repository:
rCTE Clang Tools Extra
https://reviews.llvm.org/D47183
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