/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/Analysis/FlowSensitive/ControlFlowContext.h
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1 | | //===-- ControlFlowContext.h ------------------------------------*- 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 a ControlFlowContext class that is used by dataflow |
10 | | // analyses that run over Control-Flow Graphs (CFGs). |
11 | | // |
12 | | //===----------------------------------------------------------------------===// |
13 | | |
14 | | #ifndef LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_CONTROLFLOWCONTEXT_H |
15 | | #define LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_CONTROLFLOWCONTEXT_H |
16 | | |
17 | | #include "clang/AST/ASTContext.h" |
18 | | #include "clang/AST/Decl.h" |
19 | | #include "clang/AST/Stmt.h" |
20 | | #include "clang/Analysis/CFG.h" |
21 | | #include "llvm/ADT/DenseMap.h" |
22 | | #include "llvm/Support/Error.h" |
23 | | #include <memory> |
24 | | #include <utility> |
25 | | |
26 | | namespace clang { |
27 | | namespace dataflow { |
28 | | |
29 | | /// Holds CFG and other derived context that is needed to perform dataflow |
30 | | /// analysis. |
31 | | class ControlFlowContext { |
32 | | public: |
33 | | /// Builds a ControlFlowContext from an AST node. |
34 | | static llvm::Expected<ControlFlowContext> build(const Decl *D, Stmt *S, |
35 | | ASTContext *C); |
36 | | |
37 | | /// Returns the CFG that is stored in this context. |
38 | 1.96k | const CFG &getCFG() const { return *Cfg; } |
39 | | |
40 | | /// Returns a mapping from statements to basic blocks that contain them. |
41 | 408 | const llvm::DenseMap<const Stmt *, const CFGBlock *> &getStmtToBlock() const { |
42 | 408 | return StmtToBlock; |
43 | 408 | } |
44 | | |
45 | | private: |
46 | | ControlFlowContext(std::unique_ptr<CFG> Cfg, |
47 | | llvm::DenseMap<const Stmt *, const CFGBlock *> StmtToBlock) |
48 | 393 | : Cfg(std::move(Cfg)), StmtToBlock(std::move(StmtToBlock)) {} |
49 | | |
50 | | std::unique_ptr<CFG> Cfg; |
51 | | llvm::DenseMap<const Stmt *, const CFGBlock *> StmtToBlock; |
52 | | }; |
53 | | |
54 | | } // namespace dataflow |
55 | | } // namespace clang |
56 | | |
57 | | #endif // LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_CONTROLFLOWCONTEXT_H |