Fixes #2388. Add tests for the new method/setter rules. Update assertions

LanguageFeatures/Extension-types/static_analysis_member_invocation_A06_t01.dart

@@ -2,14 +2,15 @@
 // 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 an extension type declaration DV has a non-extension
-/// type member named n in the case where DV does not declare a member named n,
-/// but DV has a direct extension type superinterface V that has a non-extension
-/// type member named n, or DV has a direct non-extension type superinterface T
-/// whose interface contains a member signature named n.
+/// @assertion We say that an extension type declaration DV has an extension
+/// type member named n in the cases where:
+/// - DV declares a member named n.
+/// - DV has no such declaration, but DV has a direct extension type
+///   superinterface V that has an extension type member named n due to a member
+///   declaration DM2, and DV does not declare a member that precludes DM2.
 ///
 /// @description Checks that if an extension type `ET` has a superinterface with
-/// a member `m` then this member is also presents in `ET`
+/// a member `m` then this member is also present in `ET`
 /// @author [email protected]
 
 // SharedOptions=--enable-experiment=inline-class

LanguageFeatures/Extension-types/static_analysis_member_invocation_A06_t03.dart

@@ -2,14 +2,15 @@
 // 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 an extension type declaration DV has a non-extension
-/// type member named n in the case where DV does not declare a member named n,
-/// but DV has a direct extension type superinterface V that has a non-extension
-/// type member named n, or DV has a direct non-extension type superinterface T
-/// whose interface contains a member signature named n.
+/// @assertion We say that an extension type declaration DV has an extension
+/// type member named n in the cases where:
+/// - DV declares a member named n.
+/// - DV has no such declaration, but DV has a direct extension type
+///   superinterface V that has an extension type member named n due to a member
+///   declaration DM2, and DV does not declare a member that precludes DM2.
 ///
 /// @description Checks that if an extension type `ET` has a superinterface with
-/// a member `m` then this member is also presents in `ET`v but members of its
+/// a member `m` then this member is also present in `ET` but members of its
 /// representation type are not
 /// @author [email protected]
 
@@ -23,20 +24,6 @@ extension type ET0(int id) {
 
 extension type ET1(int id) implements ET0 {}
 
-extension type ET2(int id) implements num {}
-
-class I {
-  int i = 0;
-}
-
-class J extends I {
-  int j = 1;
-}
-
-extension type ET3(J rep) implements I {
-  int get jOfEt3 => rep.j;
-}
-
 main() {
   ET1 et1 = ET1(42);
   et1.m1();
@@ -45,21 +32,5 @@ main() {
   et1.ceil();
 //    ^^^^
 // [analyzer] unspecified
-// [cfe] unspecified
-
-  ET2 et2 = ET2(42);
-  et2.ceil();
-  et2.isOdd;
-//    ^^^^^
-// [analyzer] unspecified
-// [cfe] unspecified
-
-  var et3 = ET3(J());
-  et3.rep;
-  et3.i;
-  et3.jOfEt3;
-  et3.j;
-//    ^
-// [analyzer] unspecified
 // [cfe] unspecified
 }

LanguageFeatures/Extension-types/static_analysis_member_invocation_A06_t05.dart

@@ -0,0 +1,73 @@
+// 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 an extension type declaration DV has an extension
+/// type member named n in the cases where:
+/// - DV declares a member named n.
+/// - DV has no such declaration, but DV has a direct extension type
+///   superinterface V that has an extension type member named n due to a member
+///   declaration DM2, and DV does not declare a member that precludes DM2.
+///
+/// @description Checks that a getter doesn't preclude setter and vice versa
+/// @author [email protected]
+
+// SharedOptions=--enable-experiment=inline-class
+
+import "../../Utils/expect.dart";
+
+String log = "";
+
+extension type V1(int _) {
+  String get n => "V1";
+}
+
+extension type V2(int _) {
+  void set n(String n) {
+    log = "V2: $n";
+  }
+}
+
+extension type V0(int _) implements V1, V2 {}
+
+extension type ET1(V1 _) implements V1 {
+  void set n(String v) {
+    log = "ET1: $v";
+  }
+}
+
+extension type ET2(V2 _) implements V2 {
+  String get n => "ET2";
+}
+
+extension type ET3(V0 _) implements V1, V2 {
+  String get n => "ET3";
+}
+
+extension type ET4(V0 _) implements V1, V2 {
+  void set n(String v) {
+    log = "ET4: $v";
+  }
+}
+
+main() {
+  final v = V0(0);
+  Expect.equals("V1", ET1(v).n);
+  ET1(v).n = "a";
+  Expect.equals("ET1: a", log);
+  log = "";
+
+  Expect.equals("ET2", ET2(v).n);
+  ET2(v).n = "b";
+  Expect.equals("V2: b", log);
+  log = "";
+
+  Expect.equals("ET3", ET3(v).n);
+  ET3(v).n = "c";
+  Expect.equals("V2: c", log);
+  log = "";
+
+  Expect.equals("V1", ET4(v).n);
+  ET4(v).n = "d";
+  Expect.equals("ET4: d", log);
+}

LanguageFeatures/Extension-types/static_analysis_member_invocation_A06_t06.dart

@@ -0,0 +1,60 @@
+// 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 an extension type declaration DV has an extension
+/// type member named n in the cases where:
+/// - DV declares a member named n.
+/// - DV has no such declaration, but DV has a direct extension type
+///   superinterface V that has an extension type member named n due to a member
+///   declaration DM2, and DV does not declare a member that precludes DM2.
+///
+/// @description Checks that an extension type declares a method or setter then
+/// they preclude inherited members
+/// @author [email protected]
+
+// SharedOptions=--enable-experiment=inline-class
+
+import "../../Utils/expect.dart";
+
+String log = "";
+
+extension type V1(int _) {
+  String n() => "V1";
+}
+
+extension type V2(int _) {
+  void set n(String v) {
+    log = "V2: $v";
+  }
+}
+
+extension type ET1(V1 _) implements V1 {
+  void set n(String v) {
+    log = "ET1: $v";
+  }
+}
+
+extension type ET2(V2 _) implements V2 {
+  String n() => "ET2";
+}
+
+extension type ET3(V1 _) implements V1 {
+  void set n(int v) {
+    log = "ET3: $v";
+  }
+}
+
+extension type ET4(V2 _) implements V2 {
+  T n<T>(T t) => t;
+}
+
+main() {
+  ET1(V1(0)).n = "1";
+  Expect.equals("ET1: 1", log);
+  log = "";
+  Expect.equals("ET2", ET2(V2(0)).n());
+  ET3(V1(0)).n = 3;
+  Expect.equals("ET3: 3", log);
+  Expect.equals(42, ET4(V2(0)).n<int>(42));
+}

LanguageFeatures/Extension-types/static_analysis_member_invocation_A06_t07.dart

@@ -0,0 +1,62 @@
+// 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 an extension type declaration DV has an extension
+/// type member named n in the cases where:
+/// - DV declares a member named n.
+/// - DV has no such declaration, but DV has a direct extension type
+///   superinterface V that has an extension type member named n due to a member
+///   declaration DM2, and DV does not declare a member that precludes DM2.
+///
+/// @description Checks that an extension type declares a method it precludes
+/// inherited members
+/// @author [email protected]
+
+// SharedOptions=--enable-experiment=inline-class
+
+extension type V1(int _) {
+  String n() => "V1";
+}
+
+extension type V2(int _) {
+  void set n(String v) {}
+}
+
+extension type ET1(V1 _) implements V1 {
+  void set n(String v) {}
+}
+
+extension type ET2(V2 _) implements V2 {
+  String n() => "ET2";
+}
+
+extension type ET3(V1 _) implements V1 {
+  void set n(int v) {}
+}
+
+extension type ET4(V2 _) implements V2 {
+  int n() => 42;
+}
+
+main() {
+  ET1(V1(0)).n();
+//           ^
+// [analyzer] unspecified
+// [cfe] unspecified
+
+  ET2(V2(0)).n = "42";
+//           ^
+// [analyzer] unspecified
+// [cfe] unspecified
+
+  ET3(V1(0)).n();
+//           ^
+// [analyzer] unspecified
+// [cfe] unspecified
+
+  ET4(V2(0)).n = "42";
+//           ^
+// [analyzer] unspecified
+// [cfe] unspecified
+}

LanguageFeatures/Extension-types/static_analysis_member_invocation_A06_t08.dart

@@ -0,0 +1,61 @@
+// 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 an extension type declaration DV has an extension
+/// type member named n in the cases where:
+/// - DV declares a member named n.
+/// - DV has no such declaration, but DV has a direct extension type
+///   superinterface V that has an extension type member named n due to a member
+///   declaration DM2, and DV does not declare a member that precludes DM2.
+///
+/// @description Checks that a getter doesn't preclude setter and vice versa,
+/// and hence the `ET*` types have a getter/setter signature conflict.
+/// @author [email protected]
+
+// SharedOptions=--enable-experiment=inline-class
+
+extension type V1(int _) {
+  String get n => "V1";
+}
+
+extension type V2(int _) {
+  void set n(String n) {}
+}
+
+extension type V0(int _) implements V1, V2 {}
+
+extension type ET1(V1 _) implements V1 {
+  void set n(int v) {}
+//         ^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+extension type ET2(V2 _) implements V2 {
+  int get n => 2;
+//        ^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+extension type ET3(V0 _) implements V1, V2 {
+  int get n => 3;
+//        ^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+extension type ET4(V0 _) implements V1, V2 {
+  void set n(int v) {}
+//         ^
+// [analyzer] unspecified
+// [cfe] unspecified
+}
+
+main() {
+  print(ET1);
+  print(ET2);
+  print(ET3);
+  print(ET4);
+}

LanguageFeatures/Extension-types/static_analysis_member_invocation_A06_t02.dart → LanguageFeatures/Extension-types/static_analysis_member_invocation_A08_t01.dart

@@ -4,12 +4,16 @@
 
 /// @assertion We say that an extension type declaration DV has a non-extension
 /// type member named n in the case where DV does not declare a member named n,
-/// but DV has a direct extension type superinterface V that has a non-extension
-/// type member named n, or DV has a direct non-extension type superinterface T
-/// whose interface contains a member signature named n.
+/// and one of the following criteria is satisfied:
+/// - DV has a direct extension type superinterface V that has a non-extension
+///   type member with signature m and name n, and DV does not declare a member
+///   that precludes m.
+/// - DV has a direct non-extension type superinterface whose interface contains
+///   a member signature m named n, and DV does not declare a member that
+///   precludes m.
 ///
 /// @description Checks that if an extension type `ET` has a superinterface with
-/// a member `m` then this member is also presents in `ET`
+/// a member `m` then this member is also present in `ET`
 /// @author [email protected]
 
 // SharedOptions=--enable-experiment=inline-class