| //===-- 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); |
| } |