teak-llvm/clang/lib/Serialization/ASTCommon.cpp
2010-08-20 16:03:52 +00:00

30 lines
918 B
C++

//===--- ASTCommon.cpp - Common stuff for ASTReader/ASTWriter----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines common functions that both ASTReader and ASTWriter use.
//
//===----------------------------------------------------------------------===//
#include "ASTCommon.h"
#include "clang/Basic/IdentifierTable.h"
#include "llvm/ADT/StringExtras.h"
using namespace clang;
unsigned serialization::ComputeHash(Selector Sel) {
unsigned N = Sel.getNumArgs();
if (N == 0)
++N;
unsigned R = 5381;
for (unsigned I = 0; I != N; ++I)
if (IdentifierInfo *II = Sel.getIdentifierInfoForSlot(I))
R = llvm::HashString(II->getName(), R);
return R;
}