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| author | dim <dim@FreeBSD.org> | 2010-09-17 15:54:40 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2010-09-17 15:54:40 +0000 |
| commit | 36c49e3f258dced101949edabd72e9bc3f1dedc4 (patch) | |
| tree | 0bbe07708f7571f8b5291f6d7b96c102b7c99dee /include/clang/Analysis/Analyses/PseudoConstantAnalysis.h | |
| parent | fc84956ac8b7cd244ef30e7a4d4d38a58dec5904 (diff) | |
| download | FreeBSD-src-36c49e3f258dced101949edabd72e9bc3f1dedc4.zip FreeBSD-src-36c49e3f258dced101949edabd72e9bc3f1dedc4.tar.gz | |
Vendor import of clang r114020 (from the release_28 branch):
http://llvm.org/svn/llvm-project/cfe/branches/release_28@114020
Approved by: rpaulo (mentor)
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 |
