diff options
| -rw-r--r-- | include/llvm/ADT/StringMap.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/llvm/ADT/StringMap.h b/include/llvm/ADT/StringMap.h index 72108e97e4..fecd61ead1 100644 --- a/include/llvm/ADT/StringMap.h +++ b/include/llvm/ADT/StringMap.h @@ -166,7 +166,18 @@ public: MallocAllocator A; return Create(KeyStart, KeyEnd, A); } - + + + /// GetStringMapEntryFromValue - Given a value that is known to be embedded + /// into a StringMapEntry, return the StringMapEntry itself. + static StringMapEntry &GetStringMapEntryFromValue(ValueTy &V) { + return *reinterpret_cast<StringMapEntry*>(reinterpret_cast<char*>(&V) - + sizeof(StringMapEntryBase)); + } + static const StringMapEntry &GetStringMapEntryFromValue(const ValueTy &V) { + return GetStringMapEntryFromValue(const_cast<ValueTy&>(V)); + } + /// Destroy - Destroy this StringMapEntry, releasing memory back to the /// specified allocator. template<typename AllocatorTy> |