blob: 74fe663e981f58ed50a9fb241d92702fb1b5e663 [file] [log] [blame]
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
#include "clang/StaticAnalyzer/Core/CheckerRegistry.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
using namespace clang;
using namespace ento;
namespace {
class MainCallChecker : public Checker < check::PreStmt<CallExpr> > {
mutable std::unique_ptr<BugType> BT;
public:
void checkPreStmt(const CallExpr *CE, CheckerContext &C) const;
};
} // end anonymous namespace
void MainCallChecker::checkPreStmt(const CallExpr *CE, CheckerContext &C) const {
const Expr *Callee = CE->getCallee();
const FunctionDecl *FD = C.getSVal(Callee).getAsFunctionDecl();
if (!FD)
return;
// Get the name of the callee.
IdentifierInfo *II = FD->getIdentifier();
if (!II) // if no identifier, not a simple C function
return;
if (II->isStr("main")) {
ExplodedNode *N = C.generateErrorNode();
if (!N)
return;
if (!BT)
BT.reset(new BugType(this, "call to main", "example analyzer plugin"));
std::unique_ptr<BugReport> report =
llvm::make_unique<BugReport>(*BT, BT->getName(), N);
report->addRange(Callee->getSourceRange());
C.emitReport(std::move(report));
}
}
// Register plugin!
extern "C"
void clang_registerCheckers (CheckerRegistry &registry) {
registry.addChecker<MainCallChecker>("example.MainCallChecker", "Disallows calls to functions called main");
}
extern "C"
const char clang_analyzerAPIVersionString[] = CLANG_ANALYZER_API_VERSION_STRING;