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// Copyright (c) 2018, 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.
/// @assertion A type T0 is a subtype of a type T1 (written T0 <: T1) when:
/// Named Function Types: T0 is U0 Function<X0 extends B00, ..., Xk extends B0k>
/// (T0 x0, ..., Tn xn, {Tn+1 xn+1, ..., Tm xm})
///
/// and T1 is U1 Function<Y0 extends B10, ..., Yk extends B1k>(S0 y0, ..., Sn yn,
/// {Sn+1 yn+1, ..., Sq yq})
/// and {yn+1, ... , yq} subsetof {xn+1, ... , xm}
/// and Si[Z0/Y0, ..., Zk/Yk] <: Vi[Z0/X0, ..., Zk/Xk] for i in 0...n
/// and Si[Z0/Y0, ..., Zk/Yk] <: Tj[Z0/X0, ..., Zk/Xk] for i in n+1...q, yj = xi
/// and U0[Z0/X0, ..., Zk/Xk] <: U1[Z0/Y0, ..., Zk/Yk]
/// and B0i[Z0/X0, ..., Zk/Xk] === B1i[Z0/Y0, ..., Zk/Yk] for i in 0...k
/// where the Zi are fresh type variables with bounds B0i[Z0/X0, ..., Zk/Xk]
/// @description Check that if U0[Z0/X0, ..., Zk/Xk] is not a subtype of
/// U1[Z0/Y0, ..., Zk/Yk], then T0 is not a subtype of T1
/// @author sgrekhov@unipro.ru
///
/// @description Check that if type T0 is not a subtype of a type T1, then
/// instance of T0 cannot be be assigned to the to local variable of type T1.
/// Assignment to local variable is tested.
/// @author sgrekhov@unipro.ru
/// @author ngl@unipro.ru
///
/// This test is generated from named_function_types_fail_A41.dart and
/// local_variable_fail_x01.dart.
/// Don't modify it. If you want to change this test, change one of the files
/// above and then run generator.dart to regenerate the tests.
class U0 {} // U0 is not subtype of U1
class U1 {}
class V0 {}
class V1 {}
class V2 {}
class V3 {}
class V4 {}
class S0 extends V0 {}
class S1 extends V1 {}
class S2 extends V2 {}
class S3 extends V3 {}
typedef T0 = U0 Function(V0 x0, V1 x1, {V2? x2, V3? x3, V4? x4});
typedef T1 = U1 Function(S0 y0, S1 y1, {S2? x2, S3? x3});
U0 t0Func(V0 x0, V1 x1, {V2? x2, V3? x3, V4? x4}) => new U0();
U1 t1Func(S0 y0, S1 y1, {S2? x2, S3? x3}) => new U1();
T0 t0Instance = t0Func;
T1 t1Instance = t1Func;
const t1Default = t1Func;
class LocalVariableTest {
LocalVariableTest() {
T1 t1 = t0Instance;
// ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}
test() {
T1 t1 = t0Instance;
// ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}
static staticTest() {
T1 t1 = t0Instance;
// ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}
}
main() {
T1 t1 = t0Instance;
// ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
bar () {
T1 t1 = t0Instance;
// ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}
}