dart-lang#2275. Add more noSuchMethod tests

Author: sgrekhov

Language/Classes/Instance_Methods/Method_noSuchMethod/definition_A01_t01.dart

@@ -0,0 +1,65 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// @assertion We say that a class C has a non-trivial `noSuchMethod` if C has a
+/// concrete member named noSuchMethod which is distinct from the one declared
+/// in the built-in class [Object]
+///
+/// Note that it must be a method that accepts one positional argument, in order
+/// to correctly override noSuchMethod in Object. For instance, it can have
+/// signature noSuchMethod(Invocation i) or
+/// noSuchMethod(Object i, [String s = ”]), but not
+/// noSuchMethod(Invocation i, String s). This implies that the situation  where
+/// noSuchMethod is invoked (explicitly or implicitly) with one actual argument
+/// cannot fail for the reason that “there is no such method”, such that we
+/// would enter an infinite loop trying to invoke noSuchMethod. It is possible,
+/// however, to encounter a dynamic error during an invocation of noSuchMethod
+/// because the actual argument fails to satisfy a type check, but that
+/// situation will give rise to a dynamic type error rather than a repeated
+/// attempt to invoke noSuchMethod
+///
+/// @description Checks that it is possible to define a `noSuchMethod` which
+/// is a correct override of `noSuchMethod` in `Object`.
+/// @author [email protected]
+
+import "../../../../Utils/expect.dart";
+
+class C1 {
+  int m();
+  void noSuchMethod(Invocation i) {}
+}
+
+class C2 {
+  int m();
+  Object? noSuchMethod(Invocation i) => 2;
+}
+
+class C3 {
+  int m();
+  Null noSuchMethod(Invocation i) => null;
+}
+
+class C4 {
+  int m();
+  Never noSuchMethod(Invocation i) => throw 42;
+}
+
+class C5 {
+  int m();
+  int noSuchMethod(Invocation i) => 5;
+}
+
+main() {
+  Expect.throws(() {
+    C1().m();
+  });
+  Expect.equals(2, C2().m());
+  Expect.throws(() {
+    C3().m();
+  });
+  Expect.throws(() {
+    C4().m();
+  });
+  Expect.equals(5, C5().m());
+}

Language/Classes/Instance_Methods/Method_noSuchMethod/definition_A01_t02.dart

@@ -0,0 +1,43 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// @assertion We say that a class C has a non-trivial `noSuchMethod` if C has a
+/// concrete member named noSuchMethod which is distinct from the one declared
+/// in the built-in class [Object]
+///
+/// Note that it must be a method that accepts one positional argument, in order
+/// to correctly override noSuchMethod in Object. For instance, it can have
+/// signature noSuchMethod(Invocation i) or
+/// noSuchMethod(Object i, [String s = ”]), but not
+/// noSuchMethod(Invocation i, String s). This implies that the situation  where
+/// noSuchMethod is invoked (explicitly or implicitly) with one actual argument
+/// cannot fail for the reason that “there is no such method”, such that we
+/// would enter an infinite loop trying to invoke noSuchMethod. It is possible,
+/// however, to encounter a dynamic error during an invocation of noSuchMethod
+/// because the actual argument fails to satisfy a type check, but that
+/// situation will give rise to a dynamic type error rather than a repeated
+/// attempt to invoke noSuchMethod
+///
+/// @description Checks that it is possible to define a `noSuchMethod` which
+/// is a correct override of `noSuchMethod` in `Object`.
+/// @author [email protected]
+
+import "../../../../Utils/expect.dart";
+
+class C1 {
+  int m();
+  dynamic noSuchMethod(Invocation i, [int x = 1]) {
+    return x;
+  }
+}
+
+class C2 {
+  int m();
+  dynamic noSuchMethod(Invocation i, {int x = 2}) => x;
+}
+
+main() {
+  Expect.equals(1, C1().m());
+  Expect.equals(2, C2().m());
+}

Language/Classes/Instance_Methods/Method_noSuchMethod/definition_A01_t03.dart

@@ -0,0 +1,43 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// @assertion We say that a class C has a non-trivial `noSuchMethod` if C has a
+/// concrete member named noSuchMethod which is distinct from the one declared
+/// in the built-in class [Object]
+///
+/// Note that it must be a method that accepts one positional argument, in order
+/// to correctly override noSuchMethod in Object. For instance, it can have
+/// signature noSuchMethod(Invocation i) or
+/// noSuchMethod(Object i, [String s = ”]), but not
+/// noSuchMethod(Invocation i, String s). This implies that the situation  where
+/// noSuchMethod is invoked (explicitly or implicitly) with one actual argument
+/// cannot fail for the reason that “there is no such method”, such that we
+/// would enter an infinite loop trying to invoke noSuchMethod. It is possible,
+/// however, to encounter a dynamic error during an invocation of noSuchMethod
+/// because the actual argument fails to satisfy a type check, but that
+/// situation will give rise to a dynamic type error rather than a repeated
+/// attempt to invoke noSuchMethod
+///
+/// @description Checks that it is possible to define a `noSuchMethod` which
+/// is a correct override of `noSuchMethod` in `Object`.
+/// @author [email protected]
+
+import "../../../../Utils/expect.dart";
+
+class C1 {
+  int m();
+  external dynamic noSuchMethod(Invocation i);
+}
+
+class C2 {
+  int m();
+  dynamic noSuchMethod(covariant Invocation i) => 2;
+}
+
+main() {
+  Expect.throws(() {
+    C1().m();
+  });
+  Expect.equals(2, C2().m());
+}

Language/Classes/Instance_Methods/Method_noSuchMethod/definition_A01_t04.dart

@@ -0,0 +1,37 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// @assertion We say that a class C has a non-trivial `noSuchMethod` if C has a
+/// concrete member named noSuchMethod which is distinct from the one declared
+/// in the built-in class [Object]
+///
+/// Note that it must be a method that accepts one positional argument, in order
+/// to correctly override noSuchMethod in Object. For instance, it can have
+/// signature noSuchMethod(Invocation i) or
+/// noSuchMethod(Object i, [String s = ”]), but not
+/// noSuchMethod(Invocation i, String s). This implies that the situation  where
+/// noSuchMethod is invoked (explicitly or implicitly) with one actual argument
+/// cannot fail for the reason that “there is no such method”, such that we
+/// would enter an infinite loop trying to invoke noSuchMethod. It is possible,
+/// however, to encounter a dynamic error during an invocation of noSuchMethod
+/// because the actual argument fails to satisfy a type check, but that
+/// situation will give rise to a dynamic type error rather than a repeated
+/// attempt to invoke noSuchMethod
+///
+/// @description Checks that it is possible to define a `noSuchMethod` which
+/// is a correct override of `noSuchMethod` in `Object`.
+/// @author [email protected]
+
+import "../../../../Utils/expect.dart";
+
+class C1 {
+  int m();
+  dynamic noSuchMethod(covariant Object o) => o;
+}
+
+main() {
+  Expect.throws(() {
+    C1().m();
+  });
+}

Language/Classes/Instance_Methods/Method_noSuchMethod/definition_A02_t01.dart

@@ -0,0 +1,59 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// @assertion We say that a class C has a non-trivial `noSuchMethod` if C has a
+/// concrete member named noSuchMethod which is distinct from the one declared
+/// in the built-in class [Object]
+///
+/// Note that it must be a method that accepts one positional argument, in order
+/// to correctly override noSuchMethod in Object. For instance, it can have
+/// signature noSuchMethod(Invocation i) or
+/// noSuchMethod(Object i, [String s = ”]), but not
+/// noSuchMethod(Invocation i, String s). This implies that the situation  where
+/// noSuchMethod is invoked (explicitly or implicitly) with one actual argument
+/// cannot fail for the reason that “there is no such method”, such that we
+/// would enter an infinite loop trying to invoke noSuchMethod. It is possible,
+/// however, to encounter a dynamic error during an invocation of noSuchMethod
+/// because the actual argument fails to satisfy a type check, but that
+/// situation will give rise to a dynamic type error rather than a repeated
+/// attempt to invoke noSuchMethod
+///
+/// @description Checks that it is a compile-time error to define a
+/// `noSuchMethod` which is not a correct override of `noSuchMethod` in `Object`
+/// @author [email protected]
+
+class C1 {
+  void noSuchMethod() {}
+//     ^^^^^^^^^^^^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+class C2 {
+  void noSuchMethod(Invocation i, String s) {}
+//     ^^^^^^^^^^^^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+class C3 {
+  void noSuchMethod(Invocation i, {required String s}) {}
+//     ^^^^^^^^^^^^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+class C4 {
+  dynamic noSuchMethod(int i) => i;
+//        ^^^^^^^^^^^^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+main() {
+  print(C1);
+  print(C2);
+  print(C3);
+  print(C4);
+}

Language/Classes/Instance_Methods/Method_noSuchMethod/definition_A02_t02.dart

@@ -0,0 +1,59 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// @assertion We say that a class C has a non-trivial `noSuchMethod` if C has a
+/// concrete member named noSuchMethod which is distinct from the one declared
+/// in the built-in class [Object]
+///
+/// Note that it must be a method that accepts one positional argument, in order
+/// to correctly override noSuchMethod in Object. For instance, it can have
+/// signature noSuchMethod(Invocation i) or
+/// noSuchMethod(Object i, [String s = ”]), but not
+/// noSuchMethod(Invocation i, String s). This implies that the situation  where
+/// noSuchMethod is invoked (explicitly or implicitly) with one actual argument
+/// cannot fail for the reason that “there is no such method”, such that we
+/// would enter an infinite loop trying to invoke noSuchMethod. It is possible,
+/// however, to encounter a dynamic error during an invocation of noSuchMethod
+/// because the actual argument fails to satisfy a type check, but that
+/// situation will give rise to a dynamic type error rather than a repeated
+/// attempt to invoke noSuchMethod
+///
+/// @description Checks that it is a compile-time error to define a
+/// `noSuchMethod` which is not a correct override of `noSuchMethod` in `Object`
+/// @author [email protected]
+
+class C1 {
+  external void noSuchMethod();
+//              ^^^^^^^^^^^^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+class C2 {
+  external void noSuchMethod(Invocation i, String s);
+//              ^^^^^^^^^^^^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+class C3 {
+  external void noSuchMethod(Invocation i, {required String s});
+//              ^^^^^^^^^^^^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+class C4 {
+  external dynamic noSuchMethod(int i);
+//                 ^^^^^^^^^^^^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+main() {
+  print(C1);
+  print(C2);
+  print(C3);
+  print(C4);
+}