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#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "clang/StaticAnalyzer/Frontend/CheckerRegistry.h"
// This simple plugin is used by clang/test/Analysis/checker-plugins.c
// to test the use of a checker that is defined in a plugin.
using namespace clang;
using namespace ento;
namespace {
class MainCallChecker : public Checker<check::PreStmt<CallExpr>> {
const BugType BT{this, "call to main", "example analyzer plugin"};
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;
auto report =
std::make_unique<PathSensitiveBugReport>(BT, BT.getDescription(), N);
report->addRange(Callee->getSourceRange());
C.emitReport(std::move(report));
}
}
// Register plugin!
extern "C" void clang_registerCheckers(CheckerRegistry &Registry) {
Registry.addChecker<MainCallChecker>("example.MainCallChecker",
"Example Description");
}
extern "C" const char clang_analyzerAPIVersionString[] =
CLANG_ANALYZER_API_VERSION_STRING;
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