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Unified Diff: tests/language/if_null_assignment_static_test.dart

Issue 3003933002: Migrate block 116. (Closed)
Patch Set: Created 3 years, 4 months ago
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Index: tests/language/if_null_assignment_static_test.dart
diff --git a/tests/language/if_null_assignment_static_test.dart b/tests/language/if_null_assignment_static_test.dart
deleted file mode 100644
index 6f0858c329759f36bb011f103ffd4ef9b38cb27f..0000000000000000000000000000000000000000
--- a/tests/language/if_null_assignment_static_test.dart
+++ /dev/null
@@ -1,179 +0,0 @@
-// Copyright (c) 2015, 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.
-
-// Verify that the static type of a ??= b is the least upper bound of the
-// static types of a and b.
-
-import "package:expect/expect.dart";
-
-// Determine whether the VM is running in checked mode.
-bool get checkedMode {
- try {
- var x = 'foo';
- int y = x;
- return false;
- } catch (_) {
- return true;
- }
-}
-
-noMethod(e) => e is NoSuchMethodError;
-
-bad() {
- Expect.fail('Should not be executed');
-}
-
-class A {
- String a;
-}
-
-class B extends A {
- String b;
-}
-
-class C extends A {
- String c;
-}
-
-A get a => null;
-
-void set a(A value) {}
-
-B get b => null;
-
-void set b(B value) {}
-
-class ClassWithStaticGetters {
- static A get a => null;
-
- static void set a(A value) {}
-
- static B get b => null;
-
- static void set b(B value) {}
-}
-
-class ClassWithInstanceGetters {
- A get a => null;
-
- void set a(A value) {}
-
- B get b => null;
-
- void set b(B value) {}
-}
-
-class DerivedClass extends ClassWithInstanceGetters {
- dynamic get a => bad();
-
- void set a(dynamic value) {
- bad();
- }
-
- dynamic get b => bad();
-
- void set b(dynamic value) {
- bad();
- }
-
- void derivedTest() {
- // The static type of super.v ??= e is the LUB of the static types of
- // super.v and e.
- (super.a ??= new A()).a; //# 01: ok
- Expect.throws(() => (super.a ??= new A()).b, noMethod); //# 02: static type warning
- (super.a ??= new B()).a; //# 03: ok
- (super.a ??= new B()).b; //# 04: static type warning
- if (!checkedMode) {
- (super.b ??= new A()).a; //# 05: ok
- Expect.throws(() => (super.b ??= new A()).b, noMethod); //# 06: static type warning
-
- // Exactly the same static warnings that would be caused by super.v = e
- // are also generated in the case of super.v ??= e.
- super.b ??= new C(); //# 07: static type warning
- }
- }
-}
-
-main() {
- // Make sure the "none" test fails if "??=" is not implemented. This makes
- // status files easier to maintain.
- var _;
- _ ??= null;
-
- new DerivedClass().derivedTest();
-
- // The static type of v ??= e is the LUB of the static types of v and e.
- (a ??= new A()).a; //# 08: ok
- Expect.throws(() => (a ??= new A()).b, noMethod); //# 09: static type warning
- (a ??= new B()).a; //# 10: ok
- (a ??= new B()).b; //# 11: static type warning
- if (!checkedMode) {
- (b ??= new A()).a; //# 12: ok
- Expect.throws(() => (b ??= new A()).b, noMethod); //# 13: static type warning
-
- // Exactly the same static warnings that would be caused by v = e are also
- // generated in the case of v ??= e.
- b ??= new C(); //# 14: static type warning
- }
-
- // The static type of C.v ??= e is the LUB of the static types of C.v and e.
- (ClassWithStaticGetters.a ??= new A()).a; //# 15: ok
- Expect.throws(() => (ClassWithStaticGetters.a ??= new A()).b, noMethod); //# 16: static type warning
- (ClassWithStaticGetters.a ??= new B()).a; //# 17: ok
- (ClassWithStaticGetters.a ??= new B()).b; //# 18: static type warning
- if (!checkedMode) {
- (ClassWithStaticGetters.b ??= new A()).a; //# 19: ok
- Expect.throws(() => (ClassWithStaticGetters.b ??= new A()).b, noMethod); //# 20: static type warning
-
- // Exactly the same static warnings that would be caused by C.v = e are
- // also generated in the case of C.v ??= e.
- ClassWithStaticGetters.b ??= new C(); //# 21: static type warning
- }
-
- // The static type of e1.v ??= e2 is the LUB of the static types of e1.v and
- // e2.
- (new ClassWithInstanceGetters().a ??= new A()).a; //# 22: ok
- Expect.throws(() => (new ClassWithInstanceGetters().a ??= new A()).b, noMethod); //# 23: static type warning
- (new ClassWithInstanceGetters().a ??= new B()).a; //# 24: ok
- (new ClassWithInstanceGetters().a ??= new B()).b; //# 25: static type warning
- if (!checkedMode) {
- (new ClassWithInstanceGetters().b ??= new A()).a; //# 26: ok
- Expect.throws(() => (new ClassWithInstanceGetters().b ??= new A()).b, noMethod); //# 27: static type warning
-
- // Exactly the same static warnings that would be caused by e1.v = e2 are
- // also generated in the case of e1.v ??= e2.
- new ClassWithInstanceGetters().b ??= new C(); //# 28: static type warning
- }
-
- // The static type of e1[e2] ??= e3 is the LUB of the static types of e1[e2]
- // and e3.
- ((<A>[null])[0] ??= new A()).a; //# 29: ok
- Expect.throws(() => ((<A>[null])[0] ??= new A()).b, noMethod); //# 30: static type warning
- ((<A>[null])[0] ??= new B()).a; //# 31: ok
- ((<A>[null])[0] ??= new B()).b; //# 32: static type warning
- if (!checkedMode) {
- ((<B>[null])[0] ??= new A()).a; //# 33: ok
- Expect.throws(() => ((<B>[null])[0] ??= new A()).b, noMethod); //# 34: static type warning
-
- // Exactly the same static warnings that would be caused by e1[e2] = e3 are
- // also generated in the case of e1[e2] ??= e3.
- (<B>[null])[0] ??= new C(); //# 35: static type warning
- }
-
- // The static type of e1?.v op= e2 is the static type of e1.v op e2,
- // therefore the static type of e1?.v ??= e2 is the static type of
- // e1.v ?? e2, which is the LUB of the static types of e1?.v and e2.
- (new ClassWithInstanceGetters()?.a ??= new A()).a; //# 36: ok
- Expect.throws(() => (new ClassWithInstanceGetters()?.a ??= new A()).b, noMethod); //# 37: static type warning
- (new ClassWithInstanceGetters()?.a ??= new B()).a; //# 38: ok
- (new ClassWithInstanceGetters()?.a ??= new B()).b; //# 39: static type warning
- if (!checkedMode) {
- (new ClassWithInstanceGetters()?.b ??= new A()).a; //# 40: ok
- Expect.throws(() => (new ClassWithInstanceGetters()?.b ??= new A()).b, noMethod); //# 41: static type warning
-
- // Exactly the same static warnings that would be caused by e1.v ??= e2 are
- // also generated in the case of e1?.v ??= e2.
- new ClassWithInstanceGetters()?.b ??= new C(); //# 42: static type warning
- }
-}

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