1 //===--- StringSet.h - The LLVM Compiler Driver -----------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open
6 // Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // StringSet - A set-like wrapper for the StringMap.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_ADT_STRINGSET_H
15 #define LLVM_ADT_STRINGSET_H
17 #include "llvm/ADT/StringMap.h"
21 /// StringSet - A wrapper for StringMap that provides set-like
22 /// functionality. Only insert() and count() methods are used by my
24 template <class AllocatorTy = llvm::MallocAllocator>
25 class StringSet : public llvm::StringMap<char, AllocatorTy> {
26 typedef llvm::StringMap<char, AllocatorTy> base;
28 bool insert(StringRef InLang) {
29 assert(!InLang.empty());
30 const char *KeyStart = InLang.data();
31 const char *KeyEnd = KeyStart + InLang.size();
32 llvm::StringMapEntry<char> *Entry = llvm::StringMapEntry<char>::
33 Create(KeyStart, KeyEnd, base::getAllocator(), '+');
34 if (!base::insert(Entry)) {
35 Entry->Destroy(base::getAllocator());
43 #endif // LLVM_ADT_STRINGSET_H