dart-sdk/tests/language_2/class_literal_test.dart
Peter von der Ahé f8de9bb52d Update language tests to optional new on constructor invocations
Change-Id: Ibb30489a1ba14e6a336099e820247c30d1882a68
Reviewed-on: https://dart-review.googlesource.com/33721
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
2018-01-19 15:26:25 +00:00

61 lines
1.9 KiB
Dart

// Copyright (c) 2011, 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.
import "package:expect/expect.dart";
// Test class literal expressions.
class Class {
static fisk() => 42;
}
foo(x) {}
main() {
Expect.equals(42, Class.fisk());
Expect.equals(null, foo(Class.fisk()));
// Verify references to a class literal are allowed.
Class;
dynamic x = Class;
foo(Class);
Expect.isFalse(Class == null);
// Verify that dereferencing a class literal is a compile-time error if it
// isn't used as a constructor.
Class();
Class[0]; //# 02: compile-time error
x = Class();
x = Class[0]; //# 04: compile-time error
x = Class[0].field; //# 05: compile-time error
x = Class[0].method(); //# 06: compile-time error
foo(Class());
foo(Class[0]); //# 08: compile-time error
foo(Class[0].field); //# 09: compile-time error
foo(Class[0].method()); //# 10: compile-time error
Class[0] = 91; //# 11: compile-time error
Class++; //# 12: compile-time error
++Class; //# 13: compile-time error
Class[0] += 3; //# 14: compile-time error
++Class[0]; //# 15: compile-time error
Class[0]++; //# 16: compile-time error
Class.method(); //# 17: compile-time error
Class.field; //# 18: compile-time error
x = Class.method(); //# 19: compile-time error
x = Class.field; //# 20: compile-time error
foo(Class.method()); //# 21: compile-time error
foo(Class.field); //# 22: compile-time error
Class / 3; //# 23: compile-time error
Class += 3; //# 24: compile-time error
// Verify that a class literal isn't a string literal.
Expect.notEquals(Class, "Class");
// Verify toString() works for class literals.
Expect.isTrue((Class).toString() is String);
var y = Class;
Expect.isTrue(y.toString() is String);
Class.toString(); //# 25: compile-time error
}