diff options
Diffstat (limited to 'include/clang/Analysis/Analyses/PseudoConstantAnalysis.h')
-rw-r--r-- | include/clang/Analysis/Analyses/PseudoConstantAnalysis.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/clang/Analysis/Analyses/PseudoConstantAnalysis.h b/include/clang/Analysis/Analyses/PseudoConstantAnalysis.h new file mode 100644 index 0000000..cb73850 --- /dev/null +++ b/include/clang/Analysis/Analyses/PseudoConstantAnalysis.h @@ -0,0 +1,45 @@ +//== PseudoConstantAnalysis.h - Find Pseudo-constants in the AST -*- C++ -*-==// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tracks the usage of variables in a Decl body to see if they are +// never written to, implying that they constant. This is useful in static +// analysis to see if a developer might have intended a variable to be const. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_ANALYSIS_PSEUDOCONSTANTANALYSIS +#define LLVM_CLANG_ANALYSIS_PSEUDOCONSTANTANALYSIS + +#include "clang/AST/Stmt.h" + +namespace clang { + +class PseudoConstantAnalysis { +public: + PseudoConstantAnalysis(const Stmt *DeclBody); + ~PseudoConstantAnalysis(); + + bool isPseudoConstant(const VarDecl *VD); + bool wasReferenced(const VarDecl *VD); + +private: + void RunAnalysis(); + inline static const Decl *getDecl(const Expr *E); + + // for storing the result of analyzed ValueDecls + void *NonConstantsImpl; + void *UsedVarsImpl; + + const Stmt *DeclBody; + bool Analyzed; +}; + +} + +#endif |