sammccall added a comment.
Basically LG now, some of the changes are a bit mysterious to me though
================
Comment at: clang-tools-extra/clangd/index/dex/Trigram.cpp:47
+ const size_t NPOS = std::numeric_limits<size_t>::max();
+ llvm::SmallVector<std::pair<size_t, size_t>>
Next(LowercaseIdentifier.size());
+ size_t NextTail = NPOS, NextHead = NPOS;
----------------
why the change from array to pair and 0 to NPOS?
================
Comment at: clang-tools-extra/clangd/index/dex/Trigram.cpp:82
+ //
+ // - First separator + first head
+ // - First head
----------------
Fist -> first
You're missing first separator only
I think examples might be clearer than a description of these.
================
Comment at: clang-tools-extra/clangd/index/dex/Trigram.cpp:102
+ LowercaseIdentifier[NextHead]));
+ Position = NextHead;
+ }
----------------
(if the change to NPOS is just to avoid hitting Position == 0 on the first
iteration, you could check it here instead)
================
Comment at: clang-tools-extra/clangd/index/dex/Trigram.cpp:148
+ // For queries with very few letters, emulate what generateIdentifierTrigrams
+ // outputs for the beginning of the Identifier.
----------------
Since the query trigram corresponds so closely to the query for short queries,
I think it makes more sense to consider it the other way:
generateIdentifierTrigrams is deciding which queries it wants to match and
emulating this function.
================
Comment at: clang-tools-extra/clangd/index/dex/Trigram.cpp:151
+ if (UniqueTrigrams.empty()) {
+ // If a bigram can't be formed, we might prepend a separator.
+ std::string Result(1, LowercaseQuery.front());
----------------
nit: by prepending a separator, we form a bigram!
If a bigram can't be formed out of letters/numbers...
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D113995/new/
https://reviews.llvm.org/D113995
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