diff options
| -rw-r--r-- | README.md | 10 | ||||
| -rw-r--r-- | cgrep.cpp | 76 |
2 files changed, 67 insertions, 19 deletions
@@ -1,2 +1,12 @@ # cgrep `grep` for C/C++ source files.<br/> +cgrep uses libtooling, the latest tested version of LLVM is trunk 340121.<br/> + +#Bulding +assuming you have the llvm/clang libraries, just run:<br/> +```bash +git clone https://github.com/bloodstalker/cgrep +git submodule init +git submodule update +make +``` @@ -42,15 +42,16 @@ using namespace clang::tooling; namespace { static llvm::cl::OptionCategory CGrepCat("cgrep options"); cl::opt<std::string> CO_DIRECTORY("dir", cl::desc(""), cl::init(""), cl::cat(CGrepCat), cl::Optional); -cl::opt<std::string> CO_REGEX("regex", cl::desc(""), cl::init(""), cl::cat(CGrepCat), cl::Required); //done -cl::opt<bool> CO_FUNCTION("func", cl::desc(""), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done -cl::opt<bool> CO_MEM_FUNCTION("memfunc", cl::desc(""), cl::init(false), cl::cat(CGrepCat), cl::Optional); -cl::opt<bool> CO_VAR("var", cl::desc(""), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done -cl::opt<bool> CO_MEMVAR("memvar", cl::desc(""), cl::init(false), cl::cat(CGrepCat), cl::Optional); -cl::opt<bool> CO_CLASS("class", cl::desc(""), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done -cl::opt<bool> CO_STRUCT("struct", cl::desc(""), cl::init(false), cl::cat(CGrepCat), cl::Optional); -cl::opt<bool> CO_SYSHDR("syshdr", cl::desc(""), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done -cl::opt<bool> CO_MAINFILE("mainfile", cl::desc(""), cl::init(true), cl::cat(CGrepCat), cl::Optional); //done +cl::opt<std::string> CO_REGEX("regex", cl::desc("the regex to match against"), cl::init(""), cl::cat(CGrepCat), cl::Required); //done +cl::opt<bool> CO_FUNCTION("func", cl::desc("match functions only"), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done +cl::opt<bool> CO_MEM_FUNCTION("memfunc", cl::desc("match member functions only"), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done +cl::opt<bool> CO_VAR("var", cl::desc("map variables only"), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done +cl::opt<bool> CO_MEMVAR("memvar", cl::desc("map member variables only"), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done +cl::opt<bool> CO_CLASS("class", cl::desc("map class declrations only"), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done +cl::opt<bool> CO_STRUCT("struct", cl::desc("map structures only"), cl::init(false), cl::cat(CGrepCat), cl::Optional); +cl::opt<bool> CO_ALL("all", cl::desc("map all identifier types"), cl::init(false), cl::cat(CGrepCat), cl::Optional); +cl::opt<bool> CO_SYSHDR("syshdr", cl::desc("match identifiers in system header as well"), cl::init(false), cl::cat(CGrepCat), cl::Optional); //done +cl::opt<bool> CO_MAINFILE("mainfile", cl::desc("mathc identifiers in the main file only"), cl::init(true), cl::cat(CGrepCat), cl::Optional); //done } /*************************************************************************************************/ #if 1 @@ -102,22 +103,53 @@ private: Rewriter &Rewrite [[maybe_unused]]; }; /*************************************************************************************************/ -class VarHandler : public MatchFinder::MatchCallback { +class FieldHandler : public MatchFinder::MatchCallback { public: - VarHandler(Rewriter &Rewrite) : Rewrite(Rewrite) {} + FieldHandler(Rewriter &Rewrite) : Rewrite(Rewrite) {} virtual void run(const MatchFinder::MatchResult &MR) { + const FieldDecl *VD = MR.Nodes.getNodeAs<clang::FieldDecl>("fielddecl"); + if (VD) { + SourceRange SR = VD->getSourceRange(); + SourceLocation SL = SR.getBegin(); + CheckSLValidity(SL); + SL = Devi::SourceLocationHasMacro(SL, Rewrite, "start"); + if (Devi::IsTheMatchInSysHeader(CO_SYSHDR, MR, SL)) return void(); + if (!Devi::IsTheMatchInMainFile(CO_MAINFILE, MR, SL)) return void(); + std::string name = VD->getNameAsString(); + if (regex_handler(REGEX_PP(CO_REGEX), name)) { + std::cout << name << "\t"; + std::cout << SR.getBegin().printToString(*MR.SourceManager) << "\t"; + std::cout << SR.getEnd().printToString(*MR.SourceManager) << "\n"; + } + } } private: Rewriter &Rewrite [[maybe_unused]]; }; /*************************************************************************************************/ -class FuncDecl : public MatchFinder::MatchCallback { +class CXXMethodHandler : public MatchFinder::MatchCallback { public: - FuncDecl(Rewriter &Rewrite) : Rewrite(Rewrite) {} + CXXMethodHandler(Rewriter &Rewrite) : Rewrite(Rewrite) {} - virtual void run(const MatchFinder::MatchResult &MR) {} + virtual void run(const MatchFinder::MatchResult &MR) { + const CXXMethodDecl *MD = MR.Nodes.getNodeAs<clang::CXXMethodDecl>("cxxmethoddecl"); + if (MD) { + SourceRange SR = MD->getSourceRange(); + SourceLocation SL = SR.getBegin(); + CheckSLValidity(SL); + SL = Devi::SourceLocationHasMacro(SL, Rewrite, "start"); + if (Devi::IsTheMatchInSysHeader(CO_SYSHDR, MR, SL)) return void(); + if (!Devi::IsTheMatchInMainFile(CO_MAINFILE, MR, SL)) return void(); + std::string name = MD->getNameAsString(); + if (regex_handler(REGEX_PP(CO_REGEX), name)) { + std::cout << name << "\t"; + std::cout << SR.getBegin().printToString(*MR.SourceManager) << "\t"; + std::cout << SR.getEnd().printToString(*MR.SourceManager) << "\n"; + } + } + } private: Rewriter &Rewrite [[maybe_unused]]; @@ -222,8 +254,8 @@ public: class MyASTConsumer : public ASTConsumer { public: MyASTConsumer(Rewriter &R) - : funcDeclHandler(R), HandlerForVar(R), HandlerForClass(R), - HandlerForCalledFunc(R), HandlerForCalledVar(R) { + : HandlerForVar(R), HandlerForClass(R), + HandlerForCalledFunc(R), HandlerForCXXMethod(R), HandlerForField(R) { #if 1 if (CO_FUNCTION) { Matcher.addMatcher(functionDecl().bind("funcdecl"), &HandlerForCalledFunc); @@ -240,7 +272,13 @@ public: &HandlerForClass); } if (CO_VAR) { - Matcher.addMatcher(declRefExpr().bind("calledvar"), &HandlerForCalledVar); + //Matcher.addMatcher(declRefExpr().bind("calledvar"), &HandlerForCalledVar); + } + if (CO_MEM_FUNCTION) { + Matcher.addMatcher(cxxMethodDecl().bind("cxxmethoddecl"), &HandlerForCXXMethod); + } + if (CO_MEMVAR) { + Matcher.addMatcher(fieldDecl().bind("fielddecl"), &HandlerForField); } #endif } @@ -250,11 +288,11 @@ public: } private: - FuncDecl funcDeclHandler; VDecl HandlerForVar; ClassDecl HandlerForClass; FunctionHandler HandlerForCalledFunc; - VarHandler HandlerForCalledVar; + CXXMethodHandler HandlerForCXXMethod; + FieldHandler HandlerForField; MatchFinder Matcher; }; /*************************************************************************************************/ |