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#include <fstream>
#include <iostream>
#include <set>
#include <sstream>
#include <clang/AST/ASTConsumer.h>
#include <clang/AST/ASTContext.h>
#include <clang/AST/RecursiveASTVisitor.h>
#include <clang/Rewrite/Core/Rewriter.h>
#include <clang/Tooling/CommonOptionsParser.h>
#include <clang/Tooling/Tooling.h>
class Context
{
std::string m_aClassName;
std::string m_aClassPrefix;
public:
Context(const std::string& rClassName, const std::string& rClassPrefix)
: m_aClassName(rClassName),
m_aClassPrefix(rClassPrefix)
{
}
bool match(const std::string& rName) const
{
if (m_aClassName == "")
return rName.find(m_aClassPrefix) == 0;
else
return rName == m_aClassName;
}
};
class Visitor : public clang::RecursiveASTVisitor<Visitor>
{
const Context m_rContext;
/// List of qualified class name -- member name pairs.
std::vector<std::pair<std::string, std::string>> m_aResults;
/// List of qualified class names which have member functions.
std::set<std::string> m_aFunctions;
public:
Visitor(const Context& rContext)
: m_rContext(rContext)
{
}
const std::vector<std::pair<std::string, std::string>>& getResults()
{
return m_aResults;
}
const std::set<std::string>& getFunctions()
{
return m_aFunctions;
}
/*
* class C
* {
* public:
* int nX; <- Handles this declaration.
* };
*/
bool VisitFieldDecl(clang::FieldDecl* pDecl)
{
clang::RecordDecl* pRecord = pDecl->getParent();
if (m_rContext.match(pRecord->getQualifiedNameAsString()))
{
std::string aName = pDecl->getNameAsString();
if (aName.find("m") != 0)
{
aName.insert(0, "m_");
std::stringstream ss;
ss << pDecl->getNameAsString() << "," << aName;
m_aResults.push_back(std::make_pair(pRecord->getQualifiedNameAsString(), ss.str()));
}
}
return true;
}
/*
* class C
* {
* public:
* static const int aS[]; <- Handles e.g. this declaration;
* };
*/
bool VisitVarDecl(clang::VarDecl* pDecl)
{
if (!pDecl->getQualifier())
return true;
clang::RecordDecl* pRecord = pDecl->getQualifier()->getAsType()->getAsCXXRecordDecl();
if (m_rContext.match(pRecord->getQualifiedNameAsString()))
{
std::string aName = pDecl->getNameAsString();
if (aName.find("m") != 0)
{
aName.insert(0, "m_");
std::stringstream ss;
ss << pDecl->getNameAsString() << "," << aName;
m_aResults.push_back(std::make_pair(pRecord->getQualifiedNameAsString(), ss.str()));
}
}
return true;
}
bool VisitCXXMethodDecl(clang::CXXMethodDecl* pDecl)
{
if (clang::isa<clang::CXXConstructorDecl>(pDecl) || clang::isa<clang::CXXDestructorDecl>(pDecl))
return true;
clang::CXXRecordDecl* pRecord = pDecl->getParent();
if (pRecord->getKindName().str() == "struct")
return true;
m_aFunctions.insert(pRecord->getQualifiedNameAsString());
return true;
}
};
class ASTConsumer : public clang::ASTConsumer
{
const Context& m_rContext;
public:
ASTConsumer(const Context& rContext)
: m_rContext(rContext)
{
}
virtual void HandleTranslationUnit(clang::ASTContext& rContext)
{
if (rContext.getDiagnostics().hasErrorOccurred())
return;
Visitor aVisitor(m_rContext);
aVisitor.TraverseDecl(rContext.getTranslationUnitDecl());
const std::set<std::string>& rFunctions = aVisitor.getFunctions();
const std::vector<std::pair<std::string, std::string>>& rResults = aVisitor.getResults();
// Ignore missing prefixes in structs without member functions.
bool bFound = false;
for (const std::string& rFunction : rFunctions)
{
for (const std::pair<std::string, std::string>& rResult : rResults)
{
if (rResult.first == rFunction)
{
std::cerr << rResult.first << "::" << rResult.second << std::endl;
bFound = true;
}
}
}
if (bFound)
exit(1);
}
};
class FrontendAction
{
const Context& m_rContext;
public:
FrontendAction(const Context& rContext)
: m_rContext(rContext)
{
}
#if (__clang_major__ == 3 && __clang_minor__ >= 6) || __clang_major__ > 3
std::unique_ptr<clang::ASTConsumer> newASTConsumer()
{
return llvm::make_unique<ASTConsumer>(m_rContext);
}
#else
clang::ASTConsumer* newASTConsumer()
{
return new ASTConsumer(m_rContext);
}
#endif
};
int main(int argc, const char** argv)
{
llvm::cl::OptionCategory aCategory("find-unprefixed-members options");
llvm::cl::opt<std::string> aClassName("class-name",
llvm::cl::desc("Qualified name (namespace::Class)."),
llvm::cl::cat(aCategory));
llvm::cl::opt<std::string> aClassPrefix("class-prefix",
llvm::cl::desc("Qualified name prefix (e.g. namespace::Cl)."),
llvm::cl::cat(aCategory));
clang::tooling::CommonOptionsParser aParser(argc, argv, aCategory);
if (aClassName.empty() && aClassPrefix.empty())
{
std::cerr << "-class-name or -class-prefix is required." << std::endl;
return 1;
}
clang::tooling::ClangTool aTool(aParser.getCompilations(), aParser.getSourcePathList());
Context aContext(aClassName, aClassPrefix);
FrontendAction aAction(aContext);
std::unique_ptr<clang::tooling::FrontendActionFactory> pFactory = clang::tooling::newFrontendActionFactory(&aAction);
return aTool.run(pFactory.get());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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