clang/test/Analysis/expr-inspection.cpp

   1 // RUN: %clang_analyze_cc1 -x c++ -analyzer-checker=debug.ExprInspection -verify %s
   2
   3 // Self-tests for the debug.ExprInspection checker.
   4
   5 void clang_analyzer_denote(int x, const char *str);
   6 void clang_analyzer_express(int x);
   7
   8 // Invalid declarations to test basic correctness checks.
   9 void clang_analyzer_denote();
  10 void clang_analyzer_denote(int x);
  11 void clang_analyzer_express();
  12
  13 void foo(int x, unsigned y) {
  14   clang_analyzer_denote(); // expected-warning{{clang_analyzer_denote() requires a symbol and a string literal}}
  15   clang_analyzer_express(); // expected-warning{{Missing argument}}
  16
  17   clang_analyzer_denote(x); // expected-warning{{clang_analyzer_denote() requires a symbol and a string literal}}
  18   clang_analyzer_express(x); // expected-warning{{Unable to express}}
  19
  20   clang_analyzer_denote(x, "$x");
  21   clang_analyzer_denote(y, "$y");
  22   clang_analyzer_express(x + y); // expected-warning{{$x + $y}}
  23
  24   clang_analyzer_denote(1, "$z");     // expected-warning{{Not a symbol}}
  25   clang_analyzer_express(1);     // expected-warning{{Not a symbol}}
  26
  27   clang_analyzer_denote(x + 1, "$w");
  28   clang_analyzer_express(x + 1); // expected-warning{{$w}}
  29   clang_analyzer_express(y + 1); // expected-warning{{$y + 1U}}
  30 }