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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:
* Positional Function Types: T0 is U0 Function<X0 extends B00, ... ,
* Xk extends B0k>(V0 x0, ..., Vn xn, [Vn+1 xn+1, ..., Vm xm])
* and T1 is U1 Function<Y0 extends B10, ..., Yk extends B1k>(S0 y0, ...,
* Sp yp, [Sp+1 yp+1, ..., Sq yq])
* and p >= n
* and m >= q
* and Si[Z0/Y0, ..., Zk/Yk] <: Vi[Z0/X0, ..., Zk/Xk] for i in 0...q
* 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 T0 and T1 satisfies the rules above, then T0 is
* subtype of T1. Test generic types with Null type when p > n and m = q.
* @author
* @description Check that if type T0 is a subtype of a type T1, then instance
* of T0 can be be used as an argument of type T1
* @author
* This test is generated from positional_function_types_A34.dart and
* arguments_binding_x01.dart.
* Don't modify it. If you want to change this file, change one of the files
* above and then run generator.dart to regenerate the tests.
class A {}
class C extends A {}
class U0<X, Y, Z> extends U1<X, Y, Z> {}
class U1<X, Y, Z> {}
class B0<X, Y, Z> {}
class B1<X, Y, Z> {}
class V0<X, Y, Z> {}
class V1<X, Y, Z> {}
class V2<X, Y, Z> {}
class V3<X, Y, Z> {}
class V4<X, Y, Z> {}
class S0<X, Y, Z> extends V0<X, Y, Z> {}
class S1<X, Y, Z> extends V1<X, Y, Z> {}
class S2<X, Y, Z> extends V2<X, Y, Z> {}
class S3<X, Y, Z> extends V3<X, Y, Z> {}
class X0<X, Y, Z> extends B0<X, Y, Z> {}
class X1<X, Y, Z> extends B1<X, Y, Z> {}
class Y0<X, Y, Z> extends B0<X, Y, Z> {}
class Y1<X, Y, Z> extends B1<X, Y, Z> {}
typedef T0 = U0<Null, Null, Null> Function<X extends B0, Y extends B1>(
V0<A, List, num> x0, V1<A, List, num> x1,
[V2<A, List, num> x2, V3<A, List, num> x3]);
typedef T1 = U1<A, List, num> Function<X extends B0, Y extends B1>(
S0<Null, Null, Null> y0, S1<Null, Null, Null> y1,
S2<Null, Null, Null> x2, [S3<Null, Null, Null> x3]);
U0<Null, Null, Null> t0Func<X extends B0, Y extends B1>(
V0<A, List, num> x0, V1<A, List, num> x1,
[V2<A, List, num> x2, V3<A, List, num> x3]) =>
U1<A, List, num> t1Func<X extends B0, Y extends B1>(
S0<Null, Null, Null> y0, S1<Null, Null, Null> y1,
S2<Null, Null, Null> x2, [S3<Null, Null, Null> x3]) =>
T0 t0Instance = t0Func;
T1 t1Instance = t1Func;
namedArgumentsFunc1(T1 t1, {T1 t2}) {}
positionalArgumentsFunc1(T1 t1, [T1 t2]) {}
namedArgumentsFunc2<X>(X t1, {X t2}) {}
positionalArgumentsFunc2<X>(X t1, [X t2]) {}
class ArgumentsBindingClass {
ArgumentsBindingClass(T1 t1) {}
ArgumentsBindingClass.named(T1 t1, {T1 t2}) {}
ArgumentsBindingClass.positional(T1 t1, [T1 t2]) {}
factory ArgumentsBindingClass.fNamed(T1 t1, {T1 t2}) {
return new ArgumentsBindingClass.named(t1, t2: t2);
factory ArgumentsBindingClass.fPositional(T1 t1, [T1 t2]) {
return new ArgumentsBindingClass.positional(t1, t2);
static namedArgumentsStaticMethod(T1 t1, {T1 t2}) {}
static positionalArgumentsStaticMethod(T1 t1, [T1 t2]) {}
namedArgumentsMethod(T1 t1, {T1 t2}) {}
positionalArgumentsMethod(T1 t1, [T1 t2]) {}
set testSetter(T1 val) {}
class ArgumentsBindingGen<X> {
ArgumentsBindingGen(X t1) {}
ArgumentsBindingGen.named(X t1, {X t2}) {}
ArgumentsBindingGen.positional(X t1, [X t2]) {}
factory ArgumentsBindingGen.fNamed(X t1, {X t2}) {
return new ArgumentsBindingGen.named(t1, t2: t2);
factory ArgumentsBindingGen.fPositional(X t1, [X t2]) {
return new ArgumentsBindingGen.positional(t1, t2);
namedArgumentsMethod(X t1, {X t2}) {}
positionalArgumentsMethod(X t1, [X t2]){}
set testSetter(X val) {}
main() {
// test functions
namedArgumentsFunc1(t0Instance, t2: t0Instance);
positionalArgumentsFunc1(t0Instance, t0Instance);
// test class constructors
ArgumentsBindingClass instance1 = new ArgumentsBindingClass(t0Instance);
instance1 = new ArgumentsBindingClass.fNamed(t0Instance, t2: t0Instance);
instance1 = new ArgumentsBindingClass.fPositional(t0Instance, t0Instance);
instance1 = new ArgumentsBindingClass.named(t0Instance, t2: t0Instance);
instance1 = new ArgumentsBindingClass.positional(t0Instance, t0Instance);
// tests methods and setters
instance1.namedArgumentsMethod(t0Instance, t2: t0Instance);
instance1.positionalArgumentsMethod(t0Instance, t0Instance);
instance1.testSetter = t0Instance;
// test static methods
ArgumentsBindingClass.namedArgumentsStaticMethod(t0Instance, t2: t0Instance);
ArgumentsBindingClass.positionalArgumentsStaticMethod(t0Instance, t0Instance);
// Test type parameters