llvm/lib/Support/StringPool.cpp
Daniel Dunbar 6316fbcb04 Convert StringMap to using StringRef for its APIs.
- Yay for '-'s and simplifications!

 - I kept StringMap::GetOrCreateValue for compatibility purposes, this can
   eventually go away. Likewise the StringMapEntry Create functions still follow
   the old style.

 - NIFC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-23 18:17:34 +00:00

37 lines
1.0 KiB
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//===-- StringPool.cpp - Interned string pool -----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the StringPool class.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/StringPool.h"
#include "llvm/Support/Streams.h"
#include "llvm/ADT/StringRef.h"
using namespace llvm;
StringPool::StringPool() {}
StringPool::~StringPool() {
assert(InternTable.empty() && "PooledStringPtr leaked!");
}
PooledStringPtr StringPool::intern(const StringRef &Key) {
table_t::iterator I = InternTable.find(Key);
if (I != InternTable.end())
return PooledStringPtr(&*I);
entry_t *S = entry_t::Create(Key.begin(), Key.end());
S->getValue().Pool = this;
InternTable.insert(S);
return PooledStringPtr(S);
}