forked from OSchip/llvm-project
69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
//== SymbolManager.h - Management of Symbolic Values ------------*- C++ -*--==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This files defines SymbolManager, a class that manages symbolic values
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// created for use by GRExprEngine and related classes.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Analysis/PathSensitive/SymbolManager.h"
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using namespace clang;
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SymbolID SymbolManager::getSymbol(VarDecl* D) {
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assert (isa<ParmVarDecl>(D) || D->hasGlobalStorage());
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SymbolID& X = DataToSymbol[getKey(D)];
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if (!X.isInitialized()) {
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X = SymbolToData.size();
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if (ParmVarDecl* VD = dyn_cast<ParmVarDecl>(D))
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SymbolToData.push_back(SymbolDataParmVar(VD));
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else
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SymbolToData.push_back(SymbolDataGlobalVar(D));
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}
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return X;
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}
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SymbolID SymbolManager::getContentsOfSymbol(SymbolID sym) {
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SymbolID& X = DataToSymbol[getKey(sym)];
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if (!X.isInitialized()) {
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X = SymbolToData.size();
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SymbolToData.push_back(SymbolDataContentsOf(sym));
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}
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return X;
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}
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QualType SymbolData::getType(const SymbolManager& SymMgr) const {
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switch (getKind()) {
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default:
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assert (false && "getType() not implemented for this symbol.");
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case ParmKind:
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return cast<SymbolDataParmVar>(this)->getDecl()->getType();
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case GlobalKind:
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return cast<SymbolDataGlobalVar>(this)->getDecl()->getType();
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case ContentsOfKind: {
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SymbolID x = cast<SymbolDataContentsOf>(this)->getSymbol();
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QualType T = SymMgr.getSymbolData(x).getType(SymMgr);
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return T->getAsPointerType()->getPointeeType();
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}
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}
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}
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SymbolManager::SymbolManager() {}
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SymbolManager::~SymbolManager() {}
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