| //===-- ExprEngineBuilders.h - "Builder" classes for ExprEngine ---*- 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 smart builder "references" which are used to marshal |
| // builders between ExprEngine objects and their related components. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_GR_EXPRENGINE_BUILDERS |
| #define LLVM_CLANG_GR_EXPRENGINE_BUILDERS |
| #include "clang/StaticAnalyzer/PathSensitive/ExprEngine.h" |
| #include "clang/Analysis/Support/SaveAndRestore.h" |
| |
| namespace clang { |
| |
| namespace ento { |
| |
| class StmtNodeBuilderRef { |
| ExplodedNodeSet &Dst; |
| StmtNodeBuilder &B; |
| ExprEngine& Eng; |
| ExplodedNode* Pred; |
| const GRState* state; |
| const Stmt* stmt; |
| const unsigned OldSize; |
| const bool AutoCreateNode; |
| SaveAndRestore<bool> OldSink; |
| SaveAndRestore<const void*> OldTag; |
| SaveOr OldHasGen; |
| |
| private: |
| friend class ExprEngine; |
| |
| StmtNodeBuilderRef(); // do not implement |
| void operator=(const StmtNodeBuilderRef&); // do not implement |
| |
| StmtNodeBuilderRef(ExplodedNodeSet &dst, |
| StmtNodeBuilder &builder, |
| ExprEngine& eng, |
| ExplodedNode* pred, |
| const GRState *st, |
| const Stmt* s, bool auto_create_node) |
| : Dst(dst), B(builder), Eng(eng), Pred(pred), |
| state(st), stmt(s), OldSize(Dst.size()), AutoCreateNode(auto_create_node), |
| OldSink(B.BuildSinks), OldTag(B.Tag), OldHasGen(B.HasGeneratedNode) {} |
| |
| public: |
| |
| ~StmtNodeBuilderRef() { |
| // Handle the case where no nodes where generated. Auto-generate that |
| // contains the updated state if we aren't generating sinks. |
| if (!B.BuildSinks && Dst.size() == OldSize && !B.HasGeneratedNode) { |
| if (AutoCreateNode) |
| B.MakeNode(Dst, const_cast<Stmt*>(stmt), Pred, state); |
| else |
| Dst.Add(Pred); |
| } |
| } |
| |
| const GRState *getState() { return state; } |
| |
| GRStateManager& getStateManager() { |
| return Eng.getStateManager(); |
| } |
| |
| ExplodedNode* MakeNode(const GRState* state) { |
| return B.MakeNode(Dst, const_cast<Stmt*>(stmt), Pred, state); |
| } |
| }; |
| |
| } // end GR namespace |
| |
| } // end clang namespace |
| |
| #endif |