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//===--- CallInliner.cpp - Transfer function that inlines callee ----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the callee inlining transfer function.
//
//===----------------------------------------------------------------------===//
#include "clang/Checker/PathSensitive/CheckerVisitor.h"
#include "clang/Checker/PathSensitive/GRState.h"
#include "clang/Checker/Checkers/LocalCheckers.h"
using namespace clang;
namespace {
class CallInliner : public Checker {
public:
static void *getTag() {
static int x;
return &x;
}
virtual bool EvalCallExpr(CheckerContext &C, const CallExpr *CE);
};
}
void clang::RegisterCallInliner(GRExprEngine &Eng) {
Eng.registerCheck(new CallInliner());
}
bool CallInliner::EvalCallExpr(CheckerContext &C, const CallExpr *CE) {
const GRState *state = C.getState();
const Expr *Callee = CE->getCallee();
SVal L = state->getSVal(Callee);
const FunctionDecl *FD = L.getAsFunctionDecl();
if (!FD)
return false;
if (!FD->getBody(FD))
return false;
// Now we have the definition of the callee, create a CallEnter node.
CallEnter Loc(CE, FD, C.getPredecessor()->getLocationContext());
C.addTransition(state, Loc);
return true;
}
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