DirectXShaderCompiler/lib/Support/StringPool.cpp at main · microsoft/DirectXShaderCompiler · GitHub

35 lines (28 loc) · 978 Bytes

//===-- 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/ADT/StringRef.h"

using namespace llvm;

StringPool::StringPool() {}

StringPool::~StringPool() {

assert(InternTable.empty() && "PooledStringPtr leaked!");

}

PooledStringPtr StringPool::intern(StringRef Key) {

table_t::iterator I = InternTable.find(Key);

if (I != InternTable.end())

return PooledStringPtr(&*I);

entry_t *S = entry_t::Create(Key);

S->getValue().Pool = this;

InternTable.insert(S);

return PooledStringPtr(S);

}

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