Support new malformed types semantics.

tests/language/malformed_test.dart

+// Copyright (c) 2013, 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.
+
+// Tests that malformed types are handled as dynamic, and that types with the
+// wrong number of type arguments are handled as raw types.
+
+import 'package:expect/expect.dart';
+
+checkIsUnresolved(var v) {
+  Expect.isTrue(v is Unresolved);
+  Expect.isTrue(v is Unresolved<int>);
+  Expect.isTrue(v is prefix.Unresolved);
+  Expect.isTrue(v is prefix.Unresolved<int>);
+}
+
+checkIsListUnresolved(bool expect, var v) {
+  Expect.equals(expect, v is List<Unresolved>);
+  Expect.equals(expect, v is List<Unresolved<int>>);
+  Expect.equals(expect, v is List<prefix.Unresolved>);
+  Expect.equals(expect, v is List<prefix.Unresolved<int>>);
+  Expect.equals(expect, v is List<int, String>);
+}
+
+checkIsListDynamic(bool expect, var v) {
+  checkIsListUnresolved(true, v);
+  Expect.equals(expect, v is List<int> && v is List<String>);
+}
+
+checkAsUnresolved(var v) {
+  Expect.equals(v, v as Unresolved);
+  Expect.equals(v, v as Unresolved<int>);
+  Expect.equals(v, v as prefix.Unresolved);
+  Expect.equals(v, v as prefix.Unresolved<int>);
+}
+
+checkAsListUnresolved(bool expect, var v) {
+  if (expect) {
+    Expect.equals(v, v as List<Unresolved>);
+    Expect.equals(v, v as List<Unresolved<int>>);
+    Expect.equals(v, v as List<prefix.Unresolved>);
+    Expect.equals(v, v as List<prefix.Unresolved<int>>);
+    Expect.equals(v, v as List<int, String>);
+  } else {
+    Expect.throws(() => v as List<Unresolved>, (e) => e is CastError);
+    Expect.throws(() => v as List<Unresolved<int>>, (e) => e is CastError);
+    Expect.throws(() => v as List<prefix.Unresolved>, (e) => e is CastError);
+    Expect.throws(() => v as List<prefix.Unresolved<int>>,
+                  (e) => e is CastError);
+    Expect.throws(() => v as List<int, String>, (e) => e is CastError);
+  }
+}
+
+checkIsMapDynamic(bool first, bool second, var v) {
+  Expect.equals(first, v is Map<String, Object> && v is Map<int, Object>);
+  Expect.equals(second, v is Map<Object, int> && v is Map<Object, String>);
+}
+
+
+void main() {
+  checkIsUnresolved('');
+  checkIsUnresolved(0);
+  checkIsListUnresolved(false, '');
+  checkIsListUnresolved(true, new List());
+  checkIsListUnresolved(true, new List<int>());
+  checkIsListUnresolved(true, new List<String>());
+  checkIsListUnresolved(true, new List<int, String>());
+
+  checkAsUnresolved('');
+  checkAsUnresolved(0);
+  checkAsListUnresolved(false, '');
+  checkAsListUnresolved(true, new List());
+  checkAsListUnresolved(true, new List<int>());
+  checkAsListUnresolved(true, new List<String>());
+  checkAsListUnresolved(true, new List<int, String>());
+
+  checkIsListDynamic(true, []);
+  checkIsListDynamic(true, <>[]); /// 01: compile-time error
+// TODO(johnniwinther): Create runtime type information on literal lists.
+//  checkIsListDynamic(false, <int>[]);
+  checkIsListDynamic(true, <Unresolved>[]);
+  checkIsListDynamic(true, <Unresolved<int>>[]);
+  checkIsListDynamic(true, <prefix.Unresolved>[]);
+  checkIsListDynamic(true, <prefix.Unresolved<int>>[]);
+  checkIsListDynamic(true, <int, String>[]);
+
+  checkIsListDynamic(true, new List());
+  checkIsListDynamic(true, new List<>()); /// 02: compile-time error
+  checkIsListDynamic(true, new List<Unresolved>());
+  checkIsListDynamic(true, new List<Unresolved<int>>());
+  checkIsListDynamic(true, new List<prefix.Unresolved>());
+  checkIsListDynamic(true, new List<prefix.Unresolved<int>>());
+  checkIsListDynamic(true, new List<int, String>());
+
+  checkIsMapDynamic(true, true, {});
+  checkIsMapDynamic(true, true, <>{}); /// 03: compile-time error
+  checkIsMapDynamic(true, true, <int>{});
+// TODO(johnniwinther): Create runtime type information on literal maps.
+//  checkIsMapDynamic(false, false, <String, int>{});
+  checkIsMapDynamic(true, true, <String, int, String>{});
+//  checkIsMapDynamic(true, false, <Unresolved, int>{});
+//  checkIsMapDynamic(false, true, <String, Unresolved<int>>{});
+//  checkIsMapDynamic(true, false,  <prefix.Unresolved, int>{});
+//  checkIsMapDynamic(false, true, <String, prefix.Unresolved<int>>{});
+
+  checkIsMapDynamic(true, true, new Map());
+  checkIsMapDynamic(true, true, new Map<>); /// 04: compile-time error
+  checkIsMapDynamic(true, true, new Map<int>());
+  checkIsMapDynamic(false, false, new Map<String, int>());
+  checkIsMapDynamic(true, true, new Map<String, int, String>());
+  checkIsMapDynamic(true, false, new Map<Unresolved, int>());
+  checkIsMapDynamic(false, true, new Map<String, Unresolved<int>>());
+  checkIsMapDynamic(true, false,  new Map<prefix.Unresolved, int>());
+  checkIsMapDynamic(false, true, new Map<String, prefix.Unresolved<int>>());
+
+  Expect.throws(() => new Unresolved(), (e) => true);
+  Expect.throws(() => new Unresolved<int>(), (e) => true);
+  Expect.throws(() => new prefix.Unresolved(), (e) => true);
+  Expect.throws(() => new prefix.Unresolved<int>(), (e) => true);
+
+  try {
+    throw 'foo';
+  } on Unresolved catch (e) {
+  } catch (e) {
+    Expect.fail();
+  }
+  try {
+    throw 'foo';
+  } on Unresolved<int> catch (e) {
+  } catch (e) {
+    Expect.fail();
+  }
+  try {
+    throw 'foo';
+  } on prefix.Unresolved catch (e) {
+  } catch (e) {
+    Expect.fail();
+  }
+  try {
+    throw 'foo';
+  } on prefix.Unresolved<int> catch (e) {
+  } catch (e) {
+    Expect.fail();
+  }
+}