233   Arena* ret = nullptr;  in AllocArena()  local
237       ret = free_arenas_;  in AllocArena()
241   if (ret == nullptr) {  in AllocArena()
242     ret = use_malloc_ ? static_cast<Arena*>(new MallocArena(size)) :  in AllocArena()
245   ret->Reset();  in AllocArena()
246   return ret;  in AllocArena()
324   uint8_t* ret;  in AllocWithMemoryTool()  local
326     ret = AllocFromNewArena(rounded_bytes);  in AllocWithMemoryTool()
327     uint8_t* noaccess_begin = ret + bytes;  in AllocWithMemoryTool()
329     if (ret == arena_head_->Begin()) {  in AllocWithMemoryTool()
330       DCHECK(ptr_ - rounded_bytes == ret);  in AllocWithMemoryTool()
335       DCHECK(ret == arena_head_->next_->Begin());  in AllocWithMemoryTool()
341     ret = ptr_;  in AllocWithMemoryTool()
344   MEMORY_TOOL_MAKE_DEFINED(ret, bytes);  in AllocWithMemoryTool()
346   DCHECK(std::all_of(ret, ret + bytes, [](uint8_t val) { return val == 0u; }));  in AllocWithMemoryTool()
347   return ret;  in AllocWithMemoryTool()