1 //=- AnalysisBasedWarnings.h - Sema warnings based on libAnalysis -*- C++ -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines AnalysisBasedWarnings, a worker object used by Sema
11 // that issues warnings based on dataflow-analysis.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_CLANG_SEMA_ANALYSIS_WARNINGS_H
15 #define LLVM_CLANG_SEMA_ANALYSIS_WARNINGS_H
17 #include "llvm/ADT/DenseMap.h"
28 class FunctionScopeInfo;
33 class AnalysisBasedWarnings {
36 friend class AnalysisBasedWarnings;
37 // The warnings to run.
38 unsigned enableCheckFallThrough : 1;
39 unsigned enableCheckUnreachable : 1;
42 void disableCheckFallThrough() { enableCheckFallThrough = 0; }
49 enum VisitFlag { NotVisited = 0, Visited = 1, Pending = 2 };
50 llvm::DenseMap<const FunctionDecl*, VisitFlag> VisitedFD;
54 AnalysisBasedWarnings(Sema &s);
56 void IssueWarnings(Policy P, FunctionScopeInfo *fscope,
57 const Decl *D, const BlockExpr *blkExpr);
59 Policy getDefaultPolicy() { return DefaultPolicy; }
62 }} // end namespace clang::sema