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Colby Mchenry
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google/leveldb's MemTable::Add calls `table_.Insert(buf)` on `Table table_;`, declared next to `typedef SkipList<const char*, KeyComparator> Table;` in the class. Receiver inference returned `Table`, no class `Table` has an `Insert` (the one class `Table` is the unrelated leveldb::Table, and C++ type_alias nodes record no aliased type), so the call fell through to the receiver-word guess HandleTable::Insert. It now reaches SkipList::Insert. cpp-type-aliases.ts reads the alias from source and looks it up the way C++ does: an alias declared earlier in the calling function, the caller's class and its bases (read from the class's own base clause), then the namespaces around it. A qualified name resolves a segment at a time (Table::Iterator is SkipList::Iterator). Aliases of a template parameter, a dependent typename or a decltype name no particular class. The constructor path uses the same lookup, so `Table::Iterator iter(&table_);` constructs SkipList::Iterator and an alias hides an outer class of its name. When the aliased type lacks the method, a `.` call or a call through a pointer on a receiver the caller itself declares gets no guessed edge. A `->` through an iterator or smart pointer, a project class template (whose specializations can add members) and declarations read from outside the caller keep the previous behavior. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>