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Unified Diff: tests/compiler/dart2js/least_upper_bound_test.dart

Issue 52263003: Implement least upper bound. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Rebased and tests expanded. Created 7 years, 1 month ago
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« sdk/lib/_internal/compiler/implementation/resolution/members.dart ('K') | « tests/compiler/dart2js/least_upper_bound_language_test.dart ('k') | tests/compiler/dart2js/resolver_test.dart » ('j') | tests/language/least_upper_bound_expansive_test.dart » ('J')
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Index: tests/compiler/dart2js/least_upper_bound_test.dart
diff --git a/tests/compiler/dart2js/least_upper_bound_test.dart b/tests/compiler/dart2js/least_upper_bound_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..e3f63df8d8412d661e1c7ad2dc73338c113d0393
--- /dev/null
+++ b/tests/compiler/dart2js/least_upper_bound_test.dart
@@ -0,0 +1,853 @@
+// 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.
+
+library subtype_test;
+
+import 'package:expect/expect.dart';
+import 'package:async_helper/async_helper.dart';
+import 'type_test_helper.dart';
+import '../../../sdk/lib/_internal/compiler/implementation/dart_types.dart';
+import "../../../sdk/lib/_internal/compiler/implementation/elements/elements.dart"
+ show Element, ClassElement;
+import '../../../sdk/lib/_internal/compiler/implementation/util/util.dart'
+ show Link;
+
+void main() {
+ testInterface1();
+ testInterface2();
+ testGeneric();
+ testMixin();
+ testFunction();
+ testTypeVariable();
+}
+
+void testInterface1() {
+ asyncTest(() => TypeEnvironment.create(r"""
+ class A {} // A and B have equal depth.
+ class B {}
+ class I implements A, B {}
+ class J implements A, B {}
+ """).then((var env) {
+
+ DartType Object_ = env['Object'];
+ DartType A = env['A'];
+ DartType B = env['B'];
+ DartType I = env['I'];
+ DartType J = env['J'];
+
+ checkLub(DartType a, DartType b, DartType expect) {
+ DartType lub = env.computeLeastUpperBound(a, b);
+ Expect.equals(expect, lub,
+ 'Unexpected lub($a,$b) = $lub, expected $expect.');
+ }
+
+ checkLub(Object_, Object_, Object_);
+ checkLub(Object_, A, Object_);
+ checkLub(Object_, B, Object_);
+ checkLub(Object_, I, Object_);
+ checkLub(Object_, J, Object_);
+
+ checkLub(A, Object_, Object_);
+ checkLub(A, A, A);
+ checkLub(A, B, Object_);
+ checkLub(A, I, A);
+ checkLub(A, J, A);
+
+ checkLub(B, Object_, Object_);
+ checkLub(B, A, Object_);
+ checkLub(B, B, B);
+ checkLub(B, I, B);
+ checkLub(B, J, B);
+
+ checkLub(I, Object_, Object_);
+ checkLub(I, A, A);
+ checkLub(I, B, B);
+ checkLub(I, I, I);
+ checkLub(I, J, Object_);
+
+ checkLub(J, Object_, Object_);
+ checkLub(J, A, A);
+ checkLub(J, B, B);
+ checkLub(J, I, Object_);
+ checkLub(J, J, J);
+ }));
+}
+
+void testInterface2() {
+ asyncTest(() => TypeEnvironment.create(r"""
+ class A {}
+ class B {}
+ class C extends B {} // This makes C have higher depth than A.
+ class I implements A, C {}
+ class J implements A, C {}
+ """).then((var env) {
+
+ DartType Object_ = env['Object'];
+ DartType A = env['A'];
+ DartType B = env['B'];
+ DartType C = env['C'];
+ DartType I = env['I'];
+ DartType J = env['J'];
+
+ checkLub(DartType a, DartType b, DartType expectedLub) {
+ DartType lub = env.computeLeastUpperBound(a, b);
+ Expect.equals(expectedLub, lub,
+ 'Unexpected lub($a,$b) = $lub, expected $expectedLub');
+ }
+
+ checkLub(Object_, Object_, Object_);
+ checkLub(Object_, A, Object_);
+ checkLub(Object_, B, Object_);
+ checkLub(Object_, C, Object_);
+ checkLub(Object_, I, Object_);
+ checkLub(Object_, J, Object_);
+
+ checkLub(A, Object_, Object_);
+ checkLub(A, A, A);
+ checkLub(A, B, Object_);
+ checkLub(A, C, Object_);
+ checkLub(A, I, A);
+ checkLub(A, J, A);
+
+ checkLub(B, Object_, Object_);
+ checkLub(B, A, Object_);
+ checkLub(B, B, B);
+ checkLub(B, C, B);
+ checkLub(B, I, B);
+ checkLub(B, J, B);
+
+ checkLub(C, Object_, Object_);
+ checkLub(C, A, Object_);
+ checkLub(C, B, B);
+ checkLub(C, C, C);
+ checkLub(C, I, C);
+ checkLub(C, J, C);
+
+ checkLub(I, Object_, Object_);
+ checkLub(I, A, A);
+ checkLub(I, B, B);
+ checkLub(I, C, C);
+ checkLub(I, I, I);
+ checkLub(I, J, C);
+
+ checkLub(J, Object_, Object_);
+ checkLub(J, A, A);
+ checkLub(J, B, B);
+ checkLub(J, C, C);
+ checkLub(J, I, C);
+ checkLub(J, J, J);
+ }));
+}
+
+void testGeneric() {
+ asyncTest(() => TypeEnvironment.create(r"""
+ class A {}
+ class B {}
+ class C extends B {}
+ class I<T> {}
+ """).then((var env) {
karlklose 2013/11/21 13:29:10 Remove 'var' (also in the other tests).
Johnni Winther 2013/11/25 13:58:27 Done.
+
+ DartType Object_ = env['Object'];
+ DartType A = env['A'];
+ DartType B = env['B'];
+ DartType C = env['C'];
+ ClassElement I = env.getElement('I');
+ DartType I_A = instantiate(I, [A]);
+ DartType I_B = instantiate(I, [B]);
+ DartType I_C = instantiate(I, [C]);
+
+ checkLub(DartType a, DartType b, DartType expectedLub) {
+ DartType lub = env.computeLeastUpperBound(a, b);
+ Expect.equals(expectedLub, lub,
+ 'Unexpected lub($a,$b) = $lub, expected $expectedLub');
+ }
+
+ checkLub(Object_, Object_, Object_);
+ checkLub(Object_, A, Object_);
+ checkLub(Object_, B, Object_);
+ checkLub(Object_, C, Object_);
+ checkLub(Object_, I_A, Object_);
+ checkLub(Object_, I_B, Object_);
+ checkLub(Object_, I_C, Object_);
+
+ checkLub(A, Object_, Object_);
+ checkLub(A, A, A);
+ checkLub(A, B, Object_);
+ checkLub(A, C, Object_);
+ checkLub(A, I_A, Object_);
+ checkLub(A, I_B, Object_);
+ checkLub(A, I_C, Object_);
+
+ checkLub(B, Object_, Object_);
+ checkLub(B, A, Object_);
+ checkLub(B, B, B);
+ checkLub(B, C, B);
+ checkLub(B, I_A, Object_);
+ checkLub(B, I_B, Object_);
+ checkLub(B, I_C, Object_);
+
+ checkLub(C, Object_, Object_);
+ checkLub(C, A, Object_);
+ checkLub(C, B, B);
+ checkLub(C, C, C);
+ checkLub(C, I_A, Object_);
+ checkLub(C, I_B, Object_);
+ checkLub(C, I_C, Object_);
+
+ checkLub(I_A, Object_, Object_);
+ checkLub(I_A, A, Object_);
+ checkLub(I_A, B, Object_);
+ checkLub(I_A, C, Object_);
+ checkLub(I_A, I_A, I_A);
+ checkLub(I_A, I_B, Object_);
+ checkLub(I_A, I_C, Object_);
+
+ checkLub(I_B, Object_, Object_);
+ checkLub(I_B, A, Object_);
+ checkLub(I_B, B, Object_);
+ checkLub(I_B, C, Object_);
+ checkLub(I_B, I_A, Object_);
+ checkLub(I_B, I_B, I_B);
+ checkLub(I_B, I_C, Object_);
+
+ checkLub(I_C, Object_, Object_);
+ checkLub(I_C, A, Object_);
+ checkLub(I_C, B, Object_);
+ checkLub(I_C, C, Object_);
+ checkLub(I_C, I_A, Object_);
+ checkLub(I_C, I_B, Object_);
+ checkLub(I_C, I_C, I_C);
+ }));
+}
+
+void testMixin() {
+ asyncTest(() => TypeEnvironment.create(r"""
+ class A {}
+ class B {}
+ class C extends B {}
+ class D extends C {} // This makes D have higher depth than Object+A.
+ class I extends Object with A, B implements A, D {}
+ class I2 extends Object with A, B implements A, D {}
+ class J extends Object with B, A implements A, D {}
+ """).then((var env) {
+
+ DartType Object_ = env['Object'];
+ DartType A = env['A'];
+ DartType B = env['B'];
+ DartType C = env['C'];
+ DartType D = env['D'];
+ DartType I = env['I'];
+ DartType I2 = env['I2'];
+ DartType J = env['J'];
+
+ checkLub(DartType a, DartType b, DartType expectedLub) {
+ DartType lub = env.computeLeastUpperBound(a, b);
+ Expect.equals(expectedLub, lub,
+ 'Unexpected lub($a,$b) = $lub, expected $expectedLub');
+ }
+
+ checkLub(Object_, Object_, Object_);
+ checkLub(Object_, A, Object_);
+ checkLub(Object_, B, Object_);
+ checkLub(Object_, C, Object_);
+ checkLub(Object_, D, Object_);
+ checkLub(Object_, I, Object_);
+ checkLub(Object_, I2, Object_);
+ checkLub(Object_, J, Object_);
+
+ checkLub(A, Object_, Object_);
+ checkLub(A, A, A);
+ checkLub(A, B, Object_);
+ checkLub(A, C, Object_);
+ checkLub(A, D, Object_);
+ checkLub(A, I, A);
+ checkLub(A, I2, A);
+ checkLub(A, J, A);
+
+ checkLub(B, Object_, Object_);
+ checkLub(B, A, Object_);
+ checkLub(B, B, B);
+ checkLub(B, C, B);
+ checkLub(B, D, B);
+ checkLub(B, I, B);
+ checkLub(B, I2, B);
+ checkLub(B, J, B);
+
+ checkLub(C, Object_, Object_);
+ checkLub(C, A, Object_);
+ checkLub(C, B, B);
+ checkLub(C, C, C);
+ checkLub(C, D, C);
+ checkLub(C, I, C);
+ checkLub(C, I2, C);
+ checkLub(C, J, C);
+
+ checkLub(D, Object_, Object_);
+ checkLub(D, A, Object_);
+ checkLub(D, B, B);
+ checkLub(D, C, C);
+ checkLub(D, D, D);
+ checkLub(D, I, D);
+ checkLub(D, I2, D);
+ checkLub(D, J, D);
+
+ checkLub(I, Object_, Object_);
+ checkLub(I, A, A);
+ checkLub(I, B, B);
+ checkLub(I, C, C);
+ checkLub(I, D, D);
+ checkLub(I, I, I);
+ checkLub(I, I2, D);
+ checkLub(I, J, D);
+
+ checkLub(I2, Object_, Object_);
+ checkLub(I2, A, A);
+ checkLub(I2, B, B);
+ checkLub(I2, C, C);
+ checkLub(I2, D, D);
+ checkLub(I2, I, D);
+ checkLub(I2, I2, I2);
+ checkLub(I2, J, D);
+
+ checkLub(J, Object_, Object_);
+ checkLub(J, A, A);
+ checkLub(J, B, B);
+ checkLub(J, C, C);
+ checkLub(J, D, D);
+ checkLub(J, I, D);
+ checkLub(J, I2, D);
+ checkLub(J, J, J);
+ }));
+}
+
+void testFunction() {
+ asyncTest(() => TypeEnvironment.create(r"""
+ class A {}
+ class B {}
+ class C extends B {}
+
+ typedef dynamic__();
+ typedef void void__();
+ typedef A A__();
+ typedef B B__();
+ typedef C C__();
+
+ typedef void void__A_B(A a, B b);
+ typedef void void__A_C(A a, C b);
+ typedef void void__B_A(B a, A b);
+ typedef void void__B_C(B a, C b);
+
+ typedef void void___B([B a]);
+ typedef void void___B_C([B a, C b]);
+ typedef void void___C_C([C a, C b]);
+
+ typedef void void____B({B a});
+ typedef void void____B_C({B a, C b});
+ typedef void void____C_C({C a, C b});
+ """).then((var env) {
+
+ DartType Object_ = env['Object'];
+ DartType Function_ = env['Function'];
+ DartType dynamic__ = env['dynamic__'];
+ DartType void__ = env['void__'];
+ DartType A__ = env['A__'];
+ DartType B__ = env['B__'];
+ DartType C__ = env['C__'];
+ DartType void__A_B = env['void__A_B'];
+ DartType void__A_C = env['void__A_C'];
+ DartType void__B_A = env['void__B_A'];
+ DartType void__B_C = env['void__B_C'];
+ DartType void___B = env['void___B'];
+ DartType void___B_C = env['void___B_C'];
+ DartType void___C_C = env['void___C_C'];
+ DartType void____B = env['void____B'];
+ DartType void____B_C = env['void____B_C'];
+ DartType void____C_C = env['void____C_C'];
+
+ // Types used only for checking results.
+ DartType void_ = env['void'];
+ DartType B = env['B'];
+ DartType C = env['C'];
+ FunctionType Object__ = env.functionType(Object_, []);
+ FunctionType void__Object_Object =
+ env.functionType(void_, [Object_, Object_]);
+ FunctionType void__Object_B =
+ env.functionType(void_, [Object_, B]);
+ FunctionType void__Object_C =
+ env.functionType(void_, [Object_, C]);
+ FunctionType void__B_Object =
+ env.functionType(void_, [B, Object_]);
+
+ checkLub(DartType a, DartType b, DartType expectedLub) {
+ DartType lub = env.computeLeastUpperBound(a, b);
+ if (a != b) {
+ expectedLub = expectedLub.unalias(env.compiler);
+ lub = lub.unalias(env.compiler);
+ }
+ Expect.equals(expectedLub, lub,
+ 'Unexpected lub(${a.unalias(env.compiler)},'
+ '${b.unalias(env.compiler)}) = '
+ '${lub}, expected ${expectedLub}');
+ }
+
+ checkLub(Object_, Object_, Object_);
+ checkLub(Object_, Function_, Object_);
+ checkLub(Object_, dynamic__, Object_);
+ checkLub(Object_, void__, Object_);
+ checkLub(Object_, A__, Object_);
+ checkLub(Object_, B__, Object_);
+ checkLub(Object_, C__, Object_);
+ checkLub(Object_, void__A_B, Object_);
+ checkLub(Object_, void__A_C, Object_);
+ checkLub(Object_, void__B_A, Object_);
+ checkLub(Object_, void__B_C, Object_);
+ checkLub(Object_, void___B, Object_);
+ checkLub(Object_, void___B_C, Object_);
+ checkLub(Object_, void___C_C, Object_);
+ checkLub(Object_, void____B, Object_);
+ checkLub(Object_, void____B_C, Object_);
+ checkLub(Object_, void____C_C, Object_);
+
+ checkLub(Function_, Object_, Object_);
+ checkLub(Function_, Function_, Function_);
+ checkLub(Function_, dynamic__, Function_);
+ checkLub(Function_, void__, Function_);
+ checkLub(Function_, A__, Function_);
+ checkLub(Function_, B__, Function_);
+ checkLub(Function_, C__, Function_);
+ checkLub(Function_, void__A_B, Function_);
+ checkLub(Function_, void__A_C, Function_);
+ checkLub(Function_, void__B_A, Function_);
+ checkLub(Function_, void__B_C, Function_);
+ checkLub(Function_, void___B, Function_);
+ checkLub(Function_, void___B_C, Function_);
+ checkLub(Function_, void___C_C, Function_);
+ checkLub(Function_, void____B, Function_);
+ checkLub(Function_, void____B_C, Function_);
+ checkLub(Function_, void____C_C, Function_);
+
+ checkLub(dynamic__, Object_, Object_);
+ checkLub(dynamic__, Function_, Function_);
+ checkLub(dynamic__, dynamic__, dynamic__);
+ checkLub(dynamic__, void__, dynamic__);
+ checkLub(dynamic__, A__, dynamic__);
+ checkLub(dynamic__, B__, dynamic__);
+ checkLub(dynamic__, C__, dynamic__);
+ checkLub(dynamic__, void__A_B, Function_);
+ checkLub(dynamic__, void__A_C, Function_);
+ checkLub(dynamic__, void__B_A, Function_);
+ checkLub(dynamic__, void__B_C, Function_);
+ checkLub(dynamic__, void___B, dynamic__);
+ checkLub(dynamic__, void___B_C, dynamic__);
+ checkLub(dynamic__, void___C_C, dynamic__);
+ checkLub(dynamic__, void____B, dynamic__);
+ checkLub(dynamic__, void____B_C, dynamic__);
+ checkLub(dynamic__, void____C_C, dynamic__);
+
+ checkLub(void__, Object_, Object_);
+ checkLub(void__, Function_, Function_);
+ checkLub(void__, dynamic__, dynamic__);
+ checkLub(void__, void__, void__);
+ checkLub(void__, A__, void__);
+ checkLub(void__, B__, void__);
+ checkLub(void__, C__, void__);
+ checkLub(void__, void__A_B, Function_);
+ checkLub(void__, void__A_C, Function_);
+ checkLub(void__, void__B_A, Function_);
+ checkLub(void__, void__B_C, Function_);
+ checkLub(void__, void___B, void__);
+ checkLub(void__, void___B_C, void__);
+ checkLub(void__, void___C_C, void__);
+ checkLub(void__, void____B, void__);
+ checkLub(void__, void____B_C, void__);
+ checkLub(void__, void____C_C, void__);
+
+ checkLub(A__, Object_, Object_);
+ checkLub(A__, Function_, Function_);
+ checkLub(A__, dynamic__, dynamic__);
+ checkLub(A__, void__, void__);
+ checkLub(A__, A__, A__);
+ checkLub(A__, B__, Object__);
+ checkLub(A__, C__, Object__);
+ checkLub(A__, void__A_B, Function_);
+ checkLub(A__, void__A_C, Function_);
+ checkLub(A__, void__B_A, Function_);
+ checkLub(A__, void__B_C, Function_);
+ checkLub(A__, void___B, void__);
+ checkLub(A__, void___B_C, void__);
+ checkLub(A__, void___C_C, void__);
+ checkLub(A__, void____B, void__);
+ checkLub(A__, void____B_C, void__);
+ checkLub(A__, void____C_C, void__);
+
+ checkLub(B__, Object_, Object_);
+ checkLub(B__, Function_, Function_);
+ checkLub(B__, dynamic__, dynamic__);
+ checkLub(B__, void__, void__);
+ checkLub(B__, A__, Object__);
+ checkLub(B__, B__, B__);
+ checkLub(B__, C__, B__);
+ checkLub(B__, void__A_B, Function_);
+ checkLub(B__, void__A_C, Function_);
+ checkLub(B__, void__B_A, Function_);
+ checkLub(B__, void__B_C, Function_);
+ checkLub(B__, void___B, void__);
+ checkLub(B__, void___B_C, void__);
+ checkLub(B__, void___C_C, void__);
+ checkLub(B__, void____B, void__);
+ checkLub(B__, void____B_C, void__);
+ checkLub(B__, void____C_C, void__);
+
+ checkLub(C__, Object_, Object_);
+ checkLub(C__, Function_, Function_);
+ checkLub(C__, dynamic__, dynamic__);
+ checkLub(C__, void__, void__);
+ checkLub(C__, A__, Object__);
+ checkLub(C__, B__, B__);
+ checkLub(C__, C__, C__);
+ checkLub(C__, void__A_B, Function_);
+ checkLub(C__, void__A_C, Function_);
+ checkLub(C__, void__B_A, Function_);
+ checkLub(C__, void__B_C, Function_);
+ checkLub(C__, void___B, void__);
+ checkLub(C__, void___B_C, void__);
+ checkLub(C__, void___C_C, void__);
+ checkLub(C__, void____B, void__);
+ checkLub(C__, void____B_C, void__);
+ checkLub(C__, void____C_C, void__);
+
+ checkLub(void__A_B, Object_, Object_);
+ checkLub(void__A_B, Function_, Function_);
+ checkLub(void__A_B, dynamic__, Function_);
+ checkLub(void__A_B, void__, Function_);
+ checkLub(void__A_B, A__, Function_);
+ checkLub(void__A_B, B__, Function_);
+ checkLub(void__A_B, C__, Function_);
+ checkLub(void__A_B, void__A_B, void__A_B);
+ checkLub(void__A_B, void__A_C, void__A_B);
+ checkLub(void__A_B, void__B_A, void__Object_Object);
+ checkLub(void__A_B, void__B_C, void__Object_B);
+ checkLub(void__A_B, void___B, Function_);
+ checkLub(void__A_B, void___B_C, Function_);
+ checkLub(void__A_B, void___C_C, Function_);
+ checkLub(void__A_B, void____B, Function_);
+ checkLub(void__A_B, void____B_C, Function_);
+ checkLub(void__A_B, void____C_C, Function_);
+
+ checkLub(void__A_C, Object_, Object_);
+ checkLub(void__A_C, Function_, Function_);
+ checkLub(void__A_C, dynamic__, Function_);
+ checkLub(void__A_C, void__, Function_);
+ checkLub(void__A_C, A__, Function_);
+ checkLub(void__A_C, B__, Function_);
+ checkLub(void__A_C, C__, Function_);
+ checkLub(void__A_C, void__A_B, void__A_B);
+ checkLub(void__A_C, void__A_C, void__A_C);
+ checkLub(void__A_C, void__B_A, void__Object_Object);
+ checkLub(void__A_C, void__B_C, void__Object_C);
+ checkLub(void__A_C, void___B, Function_);
+ checkLub(void__A_C, void___B_C, Function_);
+ checkLub(void__A_C, void___C_C, Function_);
+ checkLub(void__A_C, void____B, Function_);
+ checkLub(void__A_C, void____B_C, Function_);
+ checkLub(void__A_C, void____C_C, Function_);
+
+ checkLub(void__B_A, Object_, Object_);
+ checkLub(void__B_A, Function_, Function_);
+ checkLub(void__B_A, dynamic__, Function_);
+ checkLub(void__B_A, void__, Function_);
+ checkLub(void__B_A, A__, Function_);
+ checkLub(void__B_A, B__, Function_);
+ checkLub(void__B_A, C__, Function_);
+ checkLub(void__B_A, void__A_B, void__Object_Object);
+ checkLub(void__B_A, void__A_C, void__Object_Object);
+ checkLub(void__B_A, void__B_A, void__B_A);
+ checkLub(void__B_A, void__B_C, void__B_Object);
+ checkLub(void__B_A, void___B, Function_);
+ checkLub(void__B_A, void___B_C, Function_);
+ checkLub(void__B_A, void___C_C, Function_);
+ checkLub(void__B_A, void____B, Function_);
+ checkLub(void__B_A, void____B_C, Function_);
+ checkLub(void__B_A, void____C_C, Function_);
+
+ checkLub(void__B_C, Object_, Object_);
+ checkLub(void__B_C, Function_, Function_);
+ checkLub(void__B_C, dynamic__, Function_);
+ checkLub(void__B_C, void__, Function_);
+ checkLub(void__B_C, A__, Function_);
+ checkLub(void__B_C, B__, Function_);
+ checkLub(void__B_C, C__, Function_);
+ checkLub(void__B_C, void__A_B, void__Object_B);
+ checkLub(void__B_C, void__A_C, void__Object_C);
+ checkLub(void__B_C, void__B_A, void__B_Object);
+ checkLub(void__B_C, void__B_C, void__B_C);
+ checkLub(void__B_C, void___B, Function_);
+ checkLub(void__B_C, void___B_C, Function_);
+ checkLub(void__B_C, void___C_C, Function_);
+ checkLub(void__B_C, void____B, Function_);
+ checkLub(void__B_C, void____B_C, Function_);
+ checkLub(void__B_C, void____C_C, Function_);
+
+ checkLub(void___B, Object_, Object_);
+ checkLub(void___B, Function_, Function_);
+ checkLub(void___B, dynamic__, dynamic__);
+ checkLub(void___B, void__, void__);
+ checkLub(void___B, A__, void__);
+ checkLub(void___B, B__, void__);
+ checkLub(void___B, C__, void__);
+ checkLub(void___B, void__A_B, Function_);
+ checkLub(void___B, void__A_C, Function_);
+ checkLub(void___B, void__B_A, Function_);
+ checkLub(void___B, void__B_C, Function_);
+ checkLub(void___B, void___B, void___B);
+ checkLub(void___B, void___B_C, void___B);
+ checkLub(void___B, void___C_C, void___B);
+ checkLub(void___B, void____B, void__);
+ checkLub(void___B, void____B_C, void__);
+ checkLub(void___B, void____C_C, void__);
+
+ checkLub(void___B_C, Object_, Object_);
+ checkLub(void___B_C, Function_, Function_);
+ checkLub(void___B_C, dynamic__, dynamic__);
+ checkLub(void___B_C, void__, void__);
+ checkLub(void___B_C, A__, void__);
+ checkLub(void___B_C, B__, void__);
+ checkLub(void___B_C, C__, void__);
+ checkLub(void___B_C, void__A_B, Function_);
+ checkLub(void___B_C, void__A_C, Function_);
+ checkLub(void___B_C, void__B_A, Function_);
+ checkLub(void___B_C, void__B_C, Function_);
+ checkLub(void___B_C, void___B, void___B);
+ checkLub(void___B_C, void___B_C, void___B_C);
+ checkLub(void___B_C, void___C_C, void___B_C);
+ checkLub(void___B_C, void____B, void__);
+ checkLub(void___B_C, void____B_C, void__);
+ checkLub(void___B_C, void____C_C, void__);
+
+ checkLub(void___C_C, Object_, Object_);
+ checkLub(void___C_C, Function_, Function_);
+ checkLub(void___C_C, dynamic__, dynamic__);
+ checkLub(void___C_C, void__, void__);
+ checkLub(void___C_C, A__, void__);
+ checkLub(void___C_C, B__, void__);
+ checkLub(void___C_C, C__, void__);
+ checkLub(void___C_C, void__A_B, Function_);
+ checkLub(void___C_C, void__A_C, Function_);
+ checkLub(void___C_C, void__B_A, Function_);
+ checkLub(void___C_C, void__B_C, Function_);
+ checkLub(void___C_C, void___B, void___B);
+ checkLub(void___C_C, void___B_C, void___B_C);
+ checkLub(void___C_C, void___C_C, void___C_C);
+ checkLub(void___C_C, void____B, void__);
+ checkLub(void___C_C, void____B_C, void__);
+ checkLub(void___C_C, void____C_C, void__);
+
+ checkLub(void____B, Object_, Object_);
+ checkLub(void____B, Function_, Function_);
+ checkLub(void____B, dynamic__, dynamic__);
+ checkLub(void____B, void__, void__);
+ checkLub(void____B, A__, void__);
+ checkLub(void____B, B__, void__);
+ checkLub(void____B, C__, void__);
+ checkLub(void____B, void__A_B, Function_);
+ checkLub(void____B, void__A_C, Function_);
+ checkLub(void____B, void__B_A, Function_);
+ checkLub(void____B, void__B_C, Function_);
+ checkLub(void____B, void___B, void__);
+ checkLub(void____B, void___B_C, void__);
+ checkLub(void____B, void___C_C, void__);
+ checkLub(void____B, void____B, void____B);
+ checkLub(void____B, void____B_C, void____B);
+ checkLub(void____B, void____C_C, void____B);
+
+ checkLub(void____B_C, Object_, Object_);
+ checkLub(void____B_C, Function_, Function_);
+ checkLub(void____B_C, dynamic__, dynamic__);
+ checkLub(void____B_C, void__, void__);
+ checkLub(void____B_C, A__, void__);
+ checkLub(void____B_C, B__, void__);
+ checkLub(void____B_C, C__, void__);
+ checkLub(void____B_C, void__A_B, Function_);
+ checkLub(void____B_C, void__A_C, Function_);
+ checkLub(void____B_C, void__B_A, Function_);
+ checkLub(void____B_C, void__B_C, Function_);
+ checkLub(void____B_C, void___B, void__);
+ checkLub(void____B_C, void___B_C, void__);
+ checkLub(void____B_C, void___C_C, void__);
+ checkLub(void____B_C, void____B, void____B);
+ checkLub(void____B_C, void____B_C, void____B_C);
+ checkLub(void____B_C, void____C_C, void____B_C);
+
+ checkLub(void____C_C, Object_, Object_);
+ checkLub(void____C_C, Function_, Function_);
+ checkLub(void____C_C, dynamic__, dynamic__);
+ checkLub(void____C_C, void__, void__);
+ checkLub(void____C_C, A__, void__);
+ checkLub(void____C_C, B__, void__);
+ checkLub(void____C_C, C__, void__);
+ checkLub(void____C_C, void__A_B, Function_);
+ checkLub(void____C_C, void__A_C, Function_);
+ checkLub(void____C_C, void__B_A, Function_);
+ checkLub(void____C_C, void__B_C, Function_);
+ checkLub(void____C_C, void___B, void__);
+ checkLub(void____C_C, void___B_C, void__);
+ checkLub(void____C_C, void___C_C, void__);
+ checkLub(void____C_C, void____B, void____B);
+ checkLub(void____C_C, void____B_C, void____B_C);
+ checkLub(void____C_C, void____C_C, void____C_C);
+ }));
+}
+
+void testTypeVariable() {
+ asyncTest(() => TypeEnvironment.create(r"""
+ class A {}
+ class B {}
+ class C extends B {}
+ class I<S extends A,
+ T extends B,
+ U extends C,
+ V extends T,
+ W extends V,
+ X extends T> {}
+ """).then((var env) {
+
+ // A B
+ // | / \
+ // S T C
+ // / \ \
+ // V X U
+ // /
+ // W
+
+ DartType Object_ = env['Object'];
+ DartType A = env['A'];
+ DartType B = env['B'];
+ DartType C = env['C'];
+ ClassElement I = env.getElement('I');
+ DartType S = I.typeVariables.head;
+ DartType T = I.typeVariables.tail.head;
+ DartType U = I.typeVariables.tail.tail.head;
+ DartType V = I.typeVariables.tail.tail.tail.head;
+ DartType W = I.typeVariables.tail.tail.tail.tail.head;
+ DartType X = I.typeVariables.tail.tail.tail.tail.tail.head;
+
+ checkLub(DartType a, DartType b, DartType expectedLub) {
+ DartType lub = env.computeLeastUpperBound(a, b);
+ Expect.equals(expectedLub, lub,
+ 'Unexpected lub($a,$b) = $lub, expected $expectedLub');
+ }
+
+ checkLub(Object_, Object_, Object_);
+ checkLub(Object_, A, Object_);
+ checkLub(Object_, B, Object_);
+ checkLub(Object_, C, Object_);
+ checkLub(Object_, S, Object_);
+ checkLub(Object_, T, Object_);
+ checkLub(Object_, U, Object_);
+ checkLub(Object_, V, Object_);
+ checkLub(Object_, W, Object_);
+ checkLub(Object_, X, Object_);
+
+ checkLub(A, Object_, Object_);
+ checkLub(A, A, A);
+ checkLub(A, B, Object_);
+ checkLub(A, C, Object_);
+ checkLub(A, S, A);
+ checkLub(A, T, Object_);
+ checkLub(A, U, Object_);
+ checkLub(A, V, Object_);
+ checkLub(A, W, Object_);
+ checkLub(A, X, Object_);
+
+ checkLub(B, Object_, Object_);
+ checkLub(B, A, Object_);
+ checkLub(B, B, B);
+ checkLub(B, C, B);
+ checkLub(B, S, Object_);
+ checkLub(B, T, B);
+ checkLub(B, U, B);
+ checkLub(B, V, B);
+ checkLub(B, W, B);
+ checkLub(B, X, B);
+
+ checkLub(C, Object_, Object_);
+ checkLub(C, A, Object_);
+ checkLub(C, B, B);
+ checkLub(C, C, C);
+ checkLub(C, S, Object_);
+ checkLub(C, T, B);
+ checkLub(C, U, C);
+ checkLub(C, V, B);
+ checkLub(C, W, B);
+ checkLub(C, X, B);
+
+ checkLub(S, Object_, Object_);
+ checkLub(S, A, A);
+ checkLub(S, B, Object_);
+ checkLub(S, C, Object_);
+ checkLub(S, S, S);
+ checkLub(S, T, Object_);
+ checkLub(S, U, Object_);
+ checkLub(S, V, Object_);
+ checkLub(S, W, Object_);
+ checkLub(S, X, Object_);
+
+ checkLub(T, Object_, Object_);
+ checkLub(T, A, Object_);
+ checkLub(T, B, B);
+ checkLub(T, C, B);
+ checkLub(T, S, Object_);
+ checkLub(T, T, T);
+ checkLub(T, U, B);
+ checkLub(T, V, T);
+ checkLub(T, W, T);
+ checkLub(T, X, T);
+
+ checkLub(U, Object_, Object_);
+ checkLub(U, A, Object_);
+ checkLub(U, B, B);
+ checkLub(U, C, C);
+ checkLub(U, S, Object_);
+ checkLub(U, T, B);
+ checkLub(U, U, U);
+ checkLub(U, V, B);
+ checkLub(U, W, B);
+ checkLub(U, X, B);
+
+ checkLub(V, Object_, Object_);
+ checkLub(V, A, Object_);
+ checkLub(V, B, B);
+ checkLub(V, C, B);
+ checkLub(V, S, Object_);
+ checkLub(V, T, T);
+ checkLub(V, U, B);
+ checkLub(V, V, V);
+ checkLub(V, W, V);
+ checkLub(V, X, T);
+
+ checkLub(W, Object_, Object_);
+ checkLub(W, A, Object_);
+ checkLub(W, B, B);
+ checkLub(W, C, B);
+ checkLub(W, S, Object_);
+ checkLub(W, T, T);
+ checkLub(W, U, B);
+ checkLub(W, V, V);
+ checkLub(W, W, W);
+ checkLub(W, X, T);
+
+ checkLub(X, Object_, Object_);
+ checkLub(X, A, Object_);
+ checkLub(X, B, B);
+ checkLub(X, C, B);
+ checkLub(X, S, Object_);
+ checkLub(X, T, T);
+ checkLub(X, U, B);
+ checkLub(X, V, T);
+ checkLub(X, W, T);
+ checkLub(X, X, X);
+ }));
+}
+
+
« sdk/lib/_internal/compiler/implementation/resolution/members.dart ('K') | « tests/compiler/dart2js/least_upper_bound_language_test.dart ('k') | tests/compiler/dart2js/resolver_test.dart » ('j') | tests/language/least_upper_bound_expansive_test.dart » ('J')

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