| library test; |
| import self as self; |
| import "dart:core" as core; |
| |
| typedef F<T extends core::Object> = (T) → T; |
| class B extends core::Object { |
| synthetic constructor •() → void |
| : super core::Object::•() |
| ; |
| get x() → (core::int) → core::int { |
| throw "Should not be reached"; |
| } |
| set x((core::int) → core::int value) → void { |
| throw "Should not be reached"; |
| } |
| } |
| abstract class I<T extends core::Object> extends core::Object { |
| synthetic constructor •() → void |
| : super core::Object::•() |
| ; |
| abstract generic-contravariant get x() → (self::I::T) → self::I::T; |
| abstract set x(generic-covariant-impl generic-covariant-interface (self::I::T) → self::I::T value) → void; |
| } |
| class M extends core::Object { |
| synthetic constructor •() → void |
| : super core::Object::•() |
| ; |
| get x() → (core::int) → core::int |
| return (core::int i) → core::int { |
| self::expect(i, 1); |
| return 2; |
| }; |
| set x((core::int) → core::int value) → void { |
| self::expect(value.call(3), 4); |
| } |
| } |
| class C = self::B with self::M implements self::I<core::int> { |
| constructor •() → void |
| : super self::B::•() |
| ; |
| } |
| static method expectTypeError(() → void callback) → void { |
| try { |
| callback.call(); |
| throw "Expected TypeError, did not occur"; |
| } |
| on core::TypeError catch(no-exception-var) { |
| } |
| } |
| static method expect(core::Object value, core::Object expected) → void { |
| if(!value.{core::Object::==}(expected)) { |
| throw "Expected ${expected}, got ${value}"; |
| } |
| } |
| static method test(self::I<core::Object> iObj, self::I<core::int> iInt) → void { |
| self::expectTypeError(() → core::Null { |
| (core::Object) → core::Object x = iObj.{self::I::x} as{TypeError} (core::Object) → core::Object; |
| }); |
| (core::int) → core::int x = iInt.{self::I::x} as{TypeError} (core::int) → core::int; |
| self::expect(x.call(1), 2); |
| self::expectTypeError(() → core::Null { |
| (core::int) → core::Object f = (core::int value) → core::int => 4; |
| iObj.{self::I::x} = f; |
| }); |
| function g(core::int value) → core::int { |
| self::expect(value, 3); |
| return 4; |
| } |
| iInt.{self::I::x} = g; |
| } |
| static method main() → void { |
| self::C c = new self::C::•(); |
| self::test(c, c); |
| } |