1 //===--- CFGStmtMap.h - Map from Stmt* to CFGBlock* -----------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file defines the CFGStmtMap class, which defines a mapping from 11 // Stmt* to CFGBlock* 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_CLANG_ANALYSIS_CFGSTMTMAP_H 16 #define LLVM_CLANG_ANALYSIS_CFGSTMTMAP_H 17 18 #include "clang/Analysis/CFG.h" 19 20 namespace clang { 21 22 class CFG; 23 class CFGBlock; 24 class ParentMap; 25 class Stmt; 26 27 class CFGStmtMap { 28 ParentMap *PM; 29 void *M; 30 31 CFGStmtMap(ParentMap *pm, void *m) : PM(pm), M(m) {} 32 33 public: 34 ~CFGStmtMap(); 35 36 /// Returns a new CFGMap for the given CFG. It is the caller's 37 /// responsibility to 'delete' this object when done using it. 38 static CFGStmtMap *Build(CFG* C, ParentMap *PM); 39 40 /// Returns the CFGBlock the specified Stmt* appears in. For Stmt* that 41 /// are terminators, the CFGBlock is the block they appear as a terminator, 42 /// and not the block they appear as a block-level expression (e.g, '&&'). 43 /// CaseStmts and LabelStmts map to the CFGBlock they label. 44 CFGBlock *getBlock(Stmt * S); 45 46 const CFGBlock *getBlock(const Stmt * S) const { 47 return const_cast<CFGStmtMap*>(this)->getBlock(const_cast<Stmt*>(S)); 48 } 49 }; 50 51 } // end clang namespace 52 #endif 53
