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1af3e8d9df
- Add AllocatorList, a non-intrusive list that owns an LLVM-style allocator and provides a std::list-like interface (trivially built on top of simple_ilist), - add a typedef (and unit tests) for BumpPtrList, and - use BumpPtrList for the list of llvm::yaml::Token (i.e., TokenQueueT). TokenQueueT has no need for the complexity of an intrusive list. The only reason to inherit from ilist was to customize the allocator. TokenQueueT was the only example in-tree of using ilist<> in a truly non-intrusive way. Moreover, this removes the final use of the non-intrusive ilist_traits<>::createNode (after r280573, r281177, and r281181). I have a WIP patch that removes this customization point (and the API that relies on it) that I plan to commit soon. Note: AllocatorList owns the allocator, which limits the viable API (e.g., splicing must be on the same list). For now I've left out any problematic API. It wouldn't be hard to split AllocatorList into two layers: an Impl class that calls DerivedT::getAlloc (via CRTP), and derived classes that handle Allocator ownership/reference/etc semantics; and then implement splice with appropriate assertions; but TBH we should probably just customize the std::list allocators at that point. llvm-svn: 281182 |
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