infer_clone/infer/tests/codetoanalyze/objc/linters-for-test-only/linters_example.al

// Check that class A is not subclassed.
DEFINE-CHECKER SUBCLASSING_TEST_EXAMPLE = {

   SET report_when =
      is_class(A) HOLDS-IN-SOME-SUPERCLASS-OF ObjCInterfaceDecl;

    SET message = "This is subclassing A. Class A should not be subclassed.";

};

DEFINE-CHECKER MACRO_TEST1 = {

  LET call_two_methods(x,y) = call_method(x) OR call_method(y);

  SET report_when = call_two_methods(foo, bar);

  SET message = "Error message here";

};

  // Test reverse parameter of macro
DEFINE-CHECKER MACRO_TEST2 = {

  LET my_macro_to_call_method_of_class(x,y) = call_class_method(y,x);

  SET report_when = my_macro_to_call_method_of_class(foo, A);

  SET message = "Error message here";

};

// Test macro call macro
DEFINE-CHECKER MACRO_TEST3 = {

  LET my_macro_to_call_method_of_class(x,y) = call_class_method(y,x);

  LET call_my_macro(t,v) = my_macro_to_call_method_of_class(t,v);

  SET report_when = call_my_macro(foo, A);

  SET message = "Error message here";

};


DEFINE-CHECKER MACRO_SUBCLASS = {
  LET is_subclass_of(x) =
          is_class(x) HOLDS-IN-SOME-SUPERCLASS-OF ObjCInterfaceDecl;

   SET report_when = is_subclass_of(A);

   SET message = "This is subclassing A. Class A should not be subclassed.";

};