[cfe-dev] Strange error in a very simple PreCall checker

[Saheel Godhane]

Hello everyone,

I am getting an error while writing a very simple checker. Can someone
please help me out with this? Here's my code. The bold line throws an error
(given below the code). I am completely out of wits with this one. :(
---------------------------------------------------------------------------------------------------------
#include "ClangSACheckers.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"

using namespace clang;
using namespace ento;

namespace {
class MyChecker : public Checker< check::PreCall > {
public:
    void checkPreCall(const CallEvent &Call, CheckerContext &C) const {
    *SourceManager source_mgr = C.getSourceManager();*
    }
};
}

void ento::registerMyChecker(CheckerManager &mgr) {
  mgr.registerChecker<MyChecker>();
}
---------------------------------------------------------------------------------------------------------
Error: no matching function for call to
‘clang::SourceManager::SourceManager(clang::SourceManager&)’
     SourceManager source_mgr = C.getSourceManager();
candidate is:
clang::SourceManager::SourceManager(clang::DiagnosticsEngine&,
clang::FileManager&, bool)
   SourceManager(DiagnosticsEngine &Diag, FileManager &FileMgr,
   ^
---------------------------------------------------------------------------------------------------------
I am not even understanding why it is trying to call the constructor for
SourceManager. I registered and tried to compile this checker like any
other checker. Is there something about a PreCall checker that I am missing?

Any help will be greatly appreciated!

Sincerely,
Saheel.
(PhD student from UC Davis)
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