19 | /// [CanBeNull] public object Test() { return null; }
20 | /// public void UseTest() {
21 | /// var p = Test();
22 | /// var s = p.ToString(); // Warning: Possible 'System.NullReferenceException'
23 | /// }
24 | ///
35 | /// [NotNull] public object Foo() {
36 | /// return null; // Warning: Possible 'null' assignment
37 | /// }
38 | ///
51 | /// [StringFormatMethod("message")]
52 | /// public void ShowError(string message, params object[] args) { /* do something */ }
53 | /// public void Foo() {
54 | /// ShowError("Failed: {0}"); // Warning: Non-existing argument in format string
55 | /// }
56 | ///
79 | /// public void Foo(string param) {
80 | /// if (param == null)
81 | /// throw new ArgumentNullException("par"); // Warning: Cannot resolve symbol
82 | /// }
83 | ///
103 | /// public class Foo : INotifyPropertyChanged {
104 | /// public event PropertyChangedEventHandler PropertyChanged;
105 | /// [NotifyPropertyChangedInvocator]
106 | /// protected virtual void NotifyChanged(string propertyName) { ... }
107 | ///
108 | /// private string _name;
109 | /// public string Name {
110 | /// get { return _name; }
111 | /// set { _name = value; NotifyChanged("LastName"); /* Warning */ }
112 | /// }
113 | /// }
114 | ///
115 | /// Examples of generated notifications:
116 | /// Function Definition Table syntax:
140 | ///
156 | /// [ContractAnnotation("=> halt")]
157 | /// public void TerminationMethod()
158 | ///
160 | /// [ContractAnnotation("halt <= condition: false")]
161 | /// public void Assert(bool condition, string text) // regular assertion method
162 | ///
164 | /// [ContractAnnotation("s:null => true")]
165 | /// public bool IsNullOrEmpty(string s) // string.IsNullOrEmpty()
166 | ///
168 | /// // A method that returns null if the parameter is null, and not null if the parameter is not null
169 | /// [ContractAnnotation("null => null; notnull => notnull")]
170 | /// public object Transform(object data)
171 | ///
173 | /// [ContractAnnotation("s:null=>false; =>true,result:notnull; =>false, result:null")]
174 | /// public bool TryParse(string s, out Person result)
175 | ///
197 | /// [LocalizationRequiredAttribute(true)]
198 | /// public class Foo {
199 | /// private string str = "my string"; // Warning: Localizable string
200 | /// }
201 | ///
221 | /// [CannotApplyEqualityOperator]
222 | /// class NoEquality { }
223 | /// class UsesNoEquality {
224 | /// public void Test() {
225 | /// var ca1 = new NoEquality();
226 | /// var ca2 = new NoEquality();
227 | /// if (ca1 != null) { // OK
228 | /// bool condition = ca1 == ca2; // Warning
229 | /// }
230 | /// }
231 | /// }
232 | ///
243 | /// [BaseTypeRequired(typeof(IComponent)] // Specify requirement
244 | /// public class ComponentAttribute : Attribute { }
245 | /// [Component] // ComponentAttribute requires implementing IComponent interface
246 | /// public class MyComponent : IComponent { }
247 | ///
380 | /// [Pure] private int Multiply(int x, int y) { return x * y; }
381 | /// public void Foo() {
382 | /// const int a = 2, b = 2;
383 | /// Multiply(a, b); // Waring: Return value of pure method is not used
384 | /// }
385 | ///
569 | /// [ActionName("Foo")]
570 | /// public ActionResult Login(string returnUrl) {
571 | /// ViewBag.ReturnUrl = Url.Action("Foo"); // OK
572 | /// return RedirectToAction("Bar"); // Error: Cannot resolve action
573 | /// }
574 | ///