CFGStmtMap.h revision a6d69302d7c86b1c71b9c18493bb811f7d152075 
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_CFGSTMTMAP_H
16#define LLVM_CLANG_CFGSTMTMAP_H
17
18#include "clang/Analysis/CFG.h"
19
20namespace clang {
21
22class CFG;
23class CFGBlock;
24class ParentMap;
25class Stmt;
26
27class CFGStmtMap {
28  ParentMap *PM;
29  void *M;
30
31  CFGStmtMap(ParentMap *pm, void *m) : PM(pm), M(m) {}
32
33public:
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