1 //===--- CFGStmtMap.h - Map from Stmt* to CFGBlock* -----------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 //  This file defines the CFGStmtMap class, which defines a mapping from
10 //  Stmt* to CFGBlock*
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_CLANG_ANALYSIS_CFGSTMTMAP_H
15 #define LLVM_CLANG_ANALYSIS_CFGSTMTMAP_H
16 
17 #include "clang/Analysis/CFG.h"
18 
19 namespace clang {
20 
21 class ParentMap;
22 class Stmt;
23 
24 class CFGStmtMap {
25   ParentMap *PM;
26   void *M;
27 
CFGStmtMap(ParentMap * pm,void * m)28   CFGStmtMap(ParentMap *pm, void *m) : PM(pm), M(m) {}
29   CFGStmtMap(const CFGStmtMap &) = delete;
30   CFGStmtMap &operator=(const CFGStmtMap &) = delete;
31 
32 public:
33   ~CFGStmtMap();
34 
35   /// Returns a new CFGMap for the given CFG.  It is the caller's
36   /// responsibility to 'delete' this object when done using it.
37   static CFGStmtMap *Build(CFG* C, ParentMap *PM);
38 
39   /// Returns the CFGBlock the specified Stmt* appears in.  For Stmt* that
40   /// are terminators, the CFGBlock is the block they appear as a terminator,
41   /// and not the block they appear as a block-level expression (e.g, '&&').
42   /// CaseStmts and LabelStmts map to the CFGBlock they label.
43   CFGBlock *getBlock(Stmt * S);
44 
getBlock(const Stmt * S)45   const CFGBlock *getBlock(const Stmt * S) const {
46     return const_cast<CFGStmtMap*>(this)->getBlock(const_cast<Stmt*>(S));
47   }
48 };
49 
50 } // end clang namespace
51 #endif
52