llvm-project/clang/test/Analysis/method-call.cpp

// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -analyzer-ipa=inlining -analyzer-store region -verify %s

void clang_analyzer_eval(bool);


struct A {
  int x;
  A(int a) { x = a; }
  int getx() const { return x; }
};

void testNullObject(A *a) {
  clang_analyzer_eval(a); // expected-warning{{UNKNOWN}}
  (void)a->getx(); // assume we know what we're doing
  clang_analyzer_eval(a); // expected-warning{{TRUE}}
}


// FIXME: These require constructor inlining to be enabled.

void f1() {
  A x(3);
  // should be TRUE
  clang_analyzer_eval(x.getx() == 3); // expected-warning{{UNKNOWN}}
}

void f2() {
  const A &x = A(3);
  // should be TRUE
  clang_analyzer_eval(x.getx() == 3); // expected-warning{{UNKNOWN}}
}

void f3() {
  const A &x = (A)3;
  // should be TRUE
  clang_analyzer_eval(x.getx() == 3); // expected-warning{{UNKNOWN}}
}