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author | Gordon Henriksen <gordonhenriksen@mac.com> | 2007-12-08 17:07:47 +0000 |
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committer | Gordon Henriksen <gordonhenriksen@mac.com> | 2007-12-08 17:07:47 +0000 |
commit | cf3db8bdda1123af21644d7e2c2dca149ebfa849 (patch) | |
tree | 5fa1339ba5b56d15e5ee893fde576c57df5119ec /lib/Support | |
parent | 282d177938b34778d2d1967e7dfc681ad8b4c99f (diff) | |
download | external_llvm-cf3db8bdda1123af21644d7e2c2dca149ebfa849.zip external_llvm-cf3db8bdda1123af21644d7e2c2dca149ebfa849.tar.gz external_llvm-cf3db8bdda1123af21644d7e2c2dca149ebfa849.tar.bz2 |
Adding a StringPool data structure, which GC will use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44705 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
-rw-r--r-- | lib/Support/StringPool.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/lib/Support/StringPool.cpp b/lib/Support/StringPool.cpp new file mode 100644 index 0000000..6b34d2c --- /dev/null +++ b/lib/Support/StringPool.cpp @@ -0,0 +1,35 @@ +//===-- StringPool.cpp - Interned string pool -----------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file was developed by Gordon Henriksen and 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" + +using namespace llvm; + +StringPool::StringPool() {} + +StringPool::~StringPool() { + assert(InternTable.empty() && "PooledStringPtr leaked!"); +} + +PooledStringPtr StringPool::intern(const char *Begin, const char *End) { + table_t::iterator I = InternTable.find(Begin, End); + if (I != InternTable.end()) + return PooledStringPtr(&*I); + + entry_t *S = entry_t::Create(Begin, End); + S->getValue().Pool = this; + InternTable.insert(S); + + return PooledStringPtr(S); +} |