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// Copyright (c) 2016, 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 'dart:core';
import 'dart:core' as core;
import 'package:expect/expect.dart';
confuse(f) => f;
void _voidFunction() {}
typedef F0<T> = int Function(int y, {List<Function> x});
typedef F1<T> = List<Function> Function(int, {Function x});
typedef F2<T> = List<T> Function({int x});
typedef F3<T> = Function({List<T> x});
typedef F4<T> = Function<A>(int x);
typedef F5<T> = int Function(int, [Function]) Function();
typedef F6<T> = int Function(int, {core.List<> x}) Function();
typedef F7<T> = Function Function(Function x) Function();
typedef F8<T> = Function Function(int y, [core.List<> x]) Function();
typedef F9<T> = List<Function> Function([int]) Function();
typedef F10<T> = List<Function> Function({List<Function> x}) Function();
typedef F11<T> = List<Function> Function() Function();
typedef F12<T> = core.List<> Function(int, [List<Function> x])
typedef F13<T> = core.List<> Function([List<T>]) Function();
typedef F14<T> = List<T> Function(int x, [Function]) Function();
typedef F15<T> = List<T> Function(int y, {core.List<> x}) Function();
typedef F16<T> = Function([Function x]) Function();
typedef F17<T> = Function(core.List<>) Function();
typedef F18<T> = void Function(int, [int]) Function();
typedef F19<T> = void Function(int, {List<Function> x}) Function();
typedef F20<T> = int Function<A>(int x) Function();
typedef F21<T> = core.List<> Function<A>(Function x) Function();
typedef F22<T> = A Function<A>(List<Function> x) Function();
typedef F23<T> = B Function(B x) Function<B extends>();
int f0(int y, {List<Function> x = const []}) => throw 'uncalled';
List<Function> f1(int x0, {Function x = _voidFunction}) => throw 'uncalled';
List<int> f2({int x = -1}) => throw 'uncalled';
f3({List<int> x = const []}) => throw 'uncalled';
f4<A>(int x) => throw 'uncalled';
int Function(int, [Function]) f5() => throw 'uncalled';
int Function(int, {core.List<> x}) f6() => throw 'uncalled';
Function Function(Function x) f7() => throw 'uncalled';
Function Function(int y, [core.List<> x]) f8() => throw 'uncalled';
List<Function> Function([int]) f9() => throw 'uncalled';
List<Function> Function({List<Function> x}) f10() => throw 'uncalled';
List<Function> Function() f11() => throw 'uncalled';
core.List<> Function(int, [List<Function> x]) f12() => throw 'uncalled';
core.List<> Function([List<int>]) f13() => throw 'uncalled';
List<int> Function(int x, [Function]) f14() => throw 'uncalled';
List<int> Function(int y, {core.List<> x}) f15() => throw 'uncalled';
Function([Function x]) f16() => throw 'uncalled';
Function(core.List<>) f17() => throw 'uncalled';
void Function(int, [int]) f18() => throw 'uncalled';
void Function(int, {List<Function> x}) f19() => throw 'uncalled';
int Function<A>(int x) f20() => throw 'uncalled';
core.List<> Function<A>(Function x) f21() => throw 'uncalled';
A Function<A>(List<Function> x) f22() => throw 'uncalled';
B Function(B x) f23<B extends>() => throw 'uncalled';
class U32<T> {
final bool tIsBool;
final bool tIsInt;
final bool tIsDynamic;
late int Function(int y, {List<Function> x}) x0;
late List<Function> Function(int, {Function x}) x1;
late List<T> Function({int x}) x2;
late Function({List<T> x}) x3;
late Function<A>(int x) x4;
late int Function(int, [Function]) Function() x5;
late int Function(int, {core.List<> x}) Function() x6;
late Function Function(Function x) Function() x7;
late Function Function(int y, [core.List<> x]) Function() x8;
late List<Function> Function([int]) Function() x9;
late List<Function> Function({List<Function> x}) Function() x10;
late List<Function> Function() Function() x11;
late core.List<> Function(int, [List<Function> x]) Function() x12;
late core.List<> Function([List<T>]) Function() x13;
late List<T> Function(int x, [Function]) Function() x14;
late List<T> Function(int y, {core.List<> x}) Function() x15;
late Function([Function x]) Function() x16;
late Function(core.List<>) Function() x17;
late void Function(int, [int]) Function() x18;
late void Function(int, {List<Function> x}) Function() x19;
late int Function<A>(int x) Function() x20;
late core.List<> Function<A>(Function x) Function() x21;
late A Function<A>(List<Function> x) Function() x22;
late B Function(B x) Function<B extends>() x23;
U32({this.tIsBool: false, this.tIsInt: false})
: tIsDynamic = !tIsBool && !tIsInt;
int m0(int y, {List<Function> x = const []}) => throw 'uncalled';
List<Function> m1(int x0, {Function x = _voidFunction}) => throw 'uncalled';
List<T> m2({int x = -1}) => throw 'uncalled';
m3({List<T> x = const []}) => throw 'uncalled';
m4<A>(int x) => throw 'uncalled';
int Function(int, [Function]) m5() => throw 'uncalled';
int Function(int, {core.List<> x}) m6() => throw 'uncalled';
Function Function(Function x) m7() => throw 'uncalled';
Function Function(int y, [core.List<> x]) m8() => throw 'uncalled';
List<Function> Function([int]) m9() => throw 'uncalled';
List<Function> Function({List<Function> x}) m10() => throw 'uncalled';
List<Function> Function() m11() => throw 'uncalled';
core.List<> Function(int, [List<Function> x]) m12() =>
throw 'uncalled';
core.List<> Function([List<T>]) m13() => throw 'uncalled';
List<T> Function(int x, [Function]) m14() => throw 'uncalled';
List<T> Function(int y, {core.List<> x}) m15() => throw 'uncalled';
Function([Function x]) m16() => throw 'uncalled';
Function(core.List<>) m17() => throw 'uncalled';
void Function(int, [int]) m18() => throw 'uncalled';
void Function(int, {List<Function> x}) m19() => throw 'uncalled';
int Function<A>(int x) m20() => throw 'uncalled';
core.List<> Function<A>(Function x) m21() => throw 'uncalled';
A Function<A>(List<Function> x) m22() => throw 'uncalled';
B Function(B x) m23<B extends>() => throw 'uncalled';
runTests() {
/// int Function(int y, {List<Function> x})
void testF0() {
Expect.isTrue(f0 is F0<int>);
Expect.isTrue(confuse(f0) is F0<int>);
// In checked mode, verifies the type.
int Function(int y, {List<Function> x}) l0;
// The static function f0 sets `T` to `int`.
if (tIsInt) {
x0 = f0 as dynamic;
l0 = f0 as dynamic;
x0 = confuse(f0);
l0 = confuse(f0);
Expect.isTrue(m0 is F0<T>);
Expect.isTrue(m0 is int Function(int y, {List<Function> x}));
Expect.isTrue(confuse(m0) is F0<T>);
// In checked mode, verifies the type.
x0 = m0;
l0 = m0;
x0 = confuse(m0);
l0 = confuse(m0);
/// List<Function> Function(int, {Function x})
void testF1() {
Expect.isTrue(f1 is F1<int>);
Expect.isTrue(confuse(f1) is F1<int>);
// In checked mode, verifies the type.
List<Function> Function(int, {Function x}) l1;
// The static function f1 sets `T` to `int`.
if (tIsInt) {
x1 = f1 as dynamic;
l1 = f1 as dynamic;
x1 = confuse(f1);
l1 = confuse(f1);
Expect.isTrue(m1 is F1<T>);
Expect.isTrue(m1 is List<Function> Function(int, {Function x}));
Expect.isTrue(confuse(m1) is F1<T>);
// In checked mode, verifies the type.
x1 = m1;
l1 = m1;
x1 = confuse(m1);
l1 = confuse(m1);
/// List<T> Function({int x})
void testF2() {
Expect.isTrue(f2 is F2<int>);
Expect.isTrue(confuse(f2) is F2<int>);
// In checked mode, verifies the type.
List<T> Function({int x}) l2;
// The static function f2 sets `T` to `int`.
if (tIsInt) {
x2 = f2 as dynamic;
l2 = f2 as dynamic;
x2 = confuse(f2);
l2 = confuse(f2);
Expect.isTrue(m2 is F2<T>);
Expect.isTrue(m2 is List<T> Function({int x}));
Expect.isTrue(confuse(m2) is F2<T>);
// In checked mode, verifies the type.
x2 = m2;
l2 = m2;
x2 = confuse(m2);
l2 = confuse(m2);
// The static function has its T always set to int.
Expect.isTrue(f2 is F2<int>);
Expect.isFalse(f2 is F2<bool>);
Expect.isTrue(confuse(f2) is F2<int>);
Expect.isFalse(confuse(f2) is F2<bool>);
if (tIsBool) {
Expect.throws(() {
x2 = (f2 as dynamic);
Expect.throws(() {
x2 = confuse(f2);
Expect.throws(() {
l2 = (f2 as dynamic);
Expect.throws(() {
l2 = confuse(f2);
if (tIsInt || tIsBool) {
Expect.equals(tIsInt, m2 is F2<int>);
Expect.equals(tIsBool, m2 is F2<bool>);
Expect.equals(tIsInt, confuse(m2) is F2<int>);
Expect.equals(tIsBool, confuse(m2) is F2<bool>);
/// Function({List<T> x})
void testF3() {
Expect.isTrue(f3 is F3<int>);
Expect.isTrue(confuse(f3) is F3<int>);
// In checked mode, verifies the type.
Function({List<T> x}) l3;
// The static function f3 sets `T` to `int`.
if (tIsInt) {
x3 = f3 as dynamic;
l3 = f3 as dynamic;
x3 = confuse(f3);
l3 = confuse(f3);
Expect.isTrue(m3 is F3<T>);
Expect.isTrue(m3 is Function({List<T> x}));
Expect.isTrue(confuse(m3) is F3<T>);
// In checked mode, verifies the type.
x3 = m3;
l3 = m3;
x3 = confuse(m3);
l3 = confuse(m3);
// The static function has its T always set to int.
Expect.isTrue(f3 is F3<int>);
Expect.isFalse(f3 is F3<bool>);
Expect.isTrue(confuse(f3) is F3<int>);
Expect.isFalse(confuse(f3) is F3<bool>);
if (tIsBool) {
Expect.throws(() {
x3 = (f3 as dynamic);
Expect.throws(() {
x3 = confuse(f3);
Expect.throws(() {
l3 = (f3 as dynamic);
Expect.throws(() {
l3 = confuse(f3);
if (tIsInt || tIsBool) {
Expect.equals(true, m3 is F3<int>);
Expect.equals(true, m3 is F3<bool>);
Expect.equals(true, confuse(m3) is F3<int>);
Expect.equals(true, confuse(m3) is F3<bool>);
/// Function<A>(int x)
void testF4() {
Expect.isTrue(f4 is F4<int>);
Expect.isTrue(confuse(f4) is F4<int>);
// In checked mode, verifies the type.
Function<A>(int x) l4;
// The static function f4 sets `T` to `int`.
if (tIsInt) {
x4 = f4 as dynamic;
l4 = f4 as dynamic;
x4 = confuse(f4);
l4 = confuse(f4);
Expect.isTrue(m4 is F4<T>);
Expect.isTrue(m4 is Function<A>(int x));
Expect.isTrue(confuse(m4) is F4<T>);
// In checked mode, verifies the type.
x4 = m4;
l4 = m4;
x4 = confuse(m4);
l4 = confuse(m4);
/// int Function(int, [Function]) Function()
void testF5() {
Expect.isTrue(f5 is F5<int>);
Expect.isTrue(confuse(f5) is F5<int>);
// In checked mode, verifies the type.
int Function(int, [Function]) Function() l5;
// The static function f5 sets `T` to `int`.
if (tIsInt) {
x5 = f5 as dynamic;
l5 = f5 as dynamic;
x5 = confuse(f5);
l5 = confuse(f5);
Expect.isTrue(m5 is F5<T>);
Expect.isTrue(m5 is int Function(int, [Function]) Function());
Expect.isTrue(confuse(m5) is F5<T>);
// In checked mode, verifies the type.
x5 = m5;
l5 = m5;
x5 = confuse(m5);
l5 = confuse(m5);
/// int Function(int, {core.List<> x}) Function()
void testF6() {
Expect.isTrue(f6 is F6<int>);
Expect.isTrue(confuse(f6) is F6<int>);
// In checked mode, verifies the type.
int Function(int, {core.List<> x}) Function() l6;
// The static function f6 sets `T` to `int`.
if (tIsInt) {
x6 = f6 as dynamic;
l6 = f6 as dynamic;
x6 = confuse(f6);
l6 = confuse(f6);
Expect.isTrue(m6 is F6<T>);
Expect.isTrue(m6 is int Function(int, {core.List<> x}) Function());
Expect.isTrue(confuse(m6) is F6<T>);
// In checked mode, verifies the type.
x6 = m6;
l6 = m6;
x6 = confuse(m6);
l6 = confuse(m6);
/// Function Function(Function x) Function()
void testF7() {
Expect.isTrue(f7 is F7<int>);
Expect.isTrue(confuse(f7) is F7<int>);
// In checked mode, verifies the type.
Function Function(Function x) Function() l7;
// The static function f7 sets `T` to `int`.
if (tIsInt) {
x7 = f7 as dynamic;
l7 = f7 as dynamic;
x7 = confuse(f7);
l7 = confuse(f7);
Expect.isTrue(m7 is F7<T>);
Expect.isTrue(m7 is Function Function(Function x) Function());
Expect.isTrue(confuse(m7) is F7<T>);
// In checked mode, verifies the type.
x7 = m7;
l7 = m7;
x7 = confuse(m7);
l7 = confuse(m7);
/// Function Function(int y, [core.List<> x]) Function()
void testF8() {
Expect.isTrue(f8 is F8<int>);
Expect.isTrue(confuse(f8) is F8<int>);
// In checked mode, verifies the type.
Function Function(int y, [core.List<> x]) Function() l8;
// The static function f8 sets `T` to `int`.
if (tIsInt) {
x8 = f8 as dynamic;
l8 = f8 as dynamic;
x8 = confuse(f8);
l8 = confuse(f8);
Expect.isTrue(m8 is F8<T>);
m8 is Function Function(int y, [core.List<> x]) Function());
Expect.isTrue(confuse(m8) is F8<T>);
// In checked mode, verifies the type.
x8 = m8;
l8 = m8;
x8 = confuse(m8);
l8 = confuse(m8);
/// List<Function> Function([int]) Function()
void testF9() {
Expect.isTrue(f9 is F9<int>);
Expect.isTrue(confuse(f9) is F9<int>);
// In checked mode, verifies the type.
List<Function> Function([int]) Function() l9;
// The static function f9 sets `T` to `int`.
if (tIsInt) {
x9 = f9 as dynamic;
l9 = f9 as dynamic;
x9 = confuse(f9);
l9 = confuse(f9);
Expect.isTrue(m9 is F9<T>);
Expect.isTrue(m9 is List<Function> Function([int]) Function());
Expect.isTrue(confuse(m9) is F9<T>);
// In checked mode, verifies the type.
x9 = m9;
l9 = m9;
x9 = confuse(m9);
l9 = confuse(m9);
/// List<Function> Function({List<Function> x}) Function()
void testF10() {
Expect.isTrue(f10 is F10<int>);
Expect.isTrue(confuse(f10) is F10<int>);
// In checked mode, verifies the type.
List<Function> Function({List<Function> x}) Function() l10;
// The static function f10 sets `T` to `int`.
if (tIsInt) {
x10 = f10 as dynamic;
l10 = f10 as dynamic;
x10 = confuse(f10);
l10 = confuse(f10);
Expect.isTrue(m10 is F10<T>);
m10 is List<Function> Function({List<Function> x}) Function());
Expect.isTrue(confuse(m10) is F10<T>);
// In checked mode, verifies the type.
x10 = m10;
l10 = m10;
x10 = confuse(m10);
l10 = confuse(m10);
/// List<Function> Function() Function()
void testF11() {
Expect.isTrue(f11 is F11<int>);
Expect.isTrue(confuse(f11) is F11<int>);
// In checked mode, verifies the type.
List<Function> Function() Function() l11;
// The static function f11 sets `T` to `int`.
if (tIsInt) {
x11 = f11 as dynamic;
l11 = f11 as dynamic;
x11 = confuse(f11);
l11 = confuse(f11);
Expect.isTrue(m11 is F11<T>);
Expect.isTrue(m11 is List<Function> Function() Function());
Expect.isTrue(confuse(m11) is F11<T>);
// In checked mode, verifies the type.
x11 = m11;
l11 = m11;
x11 = confuse(m11);
l11 = confuse(m11);
/// core.List<> Function(int, [List<Function> x]) Function()
void testF12() {
Expect.isTrue(f12 is F12<int>);
Expect.isTrue(confuse(f12) is F12<int>);
// In checked mode, verifies the type.
core.List<> Function(int, [List<Function> x]) Function() l12;
// The static function f12 sets `T` to `int`.
if (tIsInt) {
x12 = f12 as dynamic;
l12 = f12 as dynamic;
x12 = confuse(f12);
l12 = confuse(f12);
Expect.isTrue(m12 is F12<T>);
Expect.isTrue(m12 is core.List<> Function(int, [List<Function> x])
Expect.isTrue(confuse(m12) is F12<T>);
// In checked mode, verifies the type.
x12 = m12;
l12 = m12;
x12 = confuse(m12);
l12 = confuse(m12);
/// core.List<> Function([List<T>]) Function()
void testF13() {
Expect.isTrue(f13 is F13<int>);
Expect.isTrue(confuse(f13) is F13<int>);
// In checked mode, verifies the type.
core.List<> Function([List<T>]) Function() l13;
// The static function f13 sets `T` to `int`.
if (tIsInt) {
x13 = f13 as dynamic;
l13 = f13 as dynamic;
x13 = confuse(f13);
l13 = confuse(f13);
Expect.isTrue(m13 is F13<T>);
Expect.isTrue(m13 is core.List<> Function([List<T>]) Function());
Expect.isTrue(confuse(m13) is F13<T>);
// In checked mode, verifies the type.
x13 = m13;
l13 = m13;
x13 = confuse(m13);
l13 = confuse(m13);
// The static function has its T always set to int.
Expect.isTrue(f13 is F13<int>);
Expect.isFalse(f13 is F13<bool>);
Expect.isTrue(confuse(f13) is F13<int>);
Expect.isFalse(confuse(f13) is F13<bool>);
if (tIsBool) {
Expect.throws(() {
x13 = (f13 as dynamic);
Expect.throws(() {
x13 = confuse(f13);
Expect.throws(() {
l13 = (f13 as dynamic);
Expect.throws(() {
l13 = confuse(f13);
if (tIsInt || tIsBool) {
Expect.equals(tIsInt, m13 is F13<int>);
Expect.equals(tIsBool, m13 is F13<bool>);
Expect.equals(tIsInt, confuse(m13) is F13<int>);
Expect.equals(tIsBool, confuse(m13) is F13<bool>);
/// List<T> Function(int x, [Function]) Function()
void testF14() {
Expect.isTrue(f14 is F14<int>);
Expect.isTrue(confuse(f14) is F14<int>);
// In checked mode, verifies the type.
List<T> Function(int x, [Function]) Function() l14;
// The static function f14 sets `T` to `int`.
if (tIsInt) {
x14 = f14 as dynamic;
l14 = f14 as dynamic;
x14 = confuse(f14);
l14 = confuse(f14);
Expect.isTrue(m14 is F14<T>);
Expect.isTrue(m14 is List<T> Function(int x, [Function]) Function());
Expect.isTrue(confuse(m14) is F14<T>);
// In checked mode, verifies the type.
x14 = m14;
l14 = m14;
x14 = confuse(m14);
l14 = confuse(m14);
// The static function has its T always set to int.
Expect.isTrue(f14 is F14<int>);
Expect.isFalse(f14 is F14<bool>);
Expect.isTrue(confuse(f14) is F14<int>);
Expect.isFalse(confuse(f14) is F14<bool>);
if (tIsBool) {
Expect.throws(() {
x14 = (f14 as dynamic);
Expect.throws(() {
x14 = confuse(f14);
Expect.throws(() {
l14 = (f14 as dynamic);
Expect.throws(() {
l14 = confuse(f14);
if (tIsInt || tIsBool) {
Expect.equals(tIsInt, m14 is F14<int>);
Expect.equals(tIsBool, m14 is F14<bool>);
Expect.equals(tIsInt, confuse(m14) is F14<int>);
Expect.equals(tIsBool, confuse(m14) is F14<bool>);
/// List<T> Function(int y, {core.List<> x}) Function()
void testF15() {
Expect.isTrue(f15 is F15<int>);
Expect.isTrue(confuse(f15) is F15<int>);
// In checked mode, verifies the type.
List<T> Function(int y, {core.List<> x}) Function() l15;
// The static function f15 sets `T` to `int`.
if (tIsInt) {
x15 = f15 as dynamic;
l15 = f15 as dynamic;
x15 = confuse(f15);
l15 = confuse(f15);
Expect.isTrue(m15 is F15<T>);
m15 is List<T> Function(int y, {core.List<> x}) Function());
Expect.isTrue(confuse(m15) is F15<T>);
// In checked mode, verifies the type.
x15 = m15;
l15 = m15;
x15 = confuse(m15);
l15 = confuse(m15);
// The static function has its T always set to int.
Expect.isTrue(f15 is F15<int>);
Expect.isFalse(f15 is F15<bool>);
Expect.isTrue(confuse(f15) is F15<int>);
Expect.isFalse(confuse(f15) is F15<bool>);
if (tIsBool) {
Expect.throws(() {
x15 = (f15 as dynamic);
Expect.throws(() {
x15 = confuse(f15);
Expect.throws(() {
l15 = (f15 as dynamic);
Expect.throws(() {
l15 = confuse(f15);
if (tIsInt || tIsBool) {
Expect.equals(tIsInt, m15 is F15<int>);
Expect.equals(tIsBool, m15 is F15<bool>);
Expect.equals(tIsInt, confuse(m15) is F15<int>);
Expect.equals(tIsBool, confuse(m15) is F15<bool>);
/// Function([Function x]) Function()
void testF16() {
Expect.isTrue(f16 is F16<int>);
Expect.isTrue(confuse(f16) is F16<int>);
// In checked mode, verifies the type.
Function([Function x]) Function() l16;
// The static function f16 sets `T` to `int`.
if (tIsInt) {
x16 = f16 as dynamic;
l16 = f16 as dynamic;
x16 = confuse(f16);
l16 = confuse(f16);
Expect.isTrue(m16 is F16<T>);
Expect.isTrue(m16 is Function([Function x]) Function());
Expect.isTrue(confuse(m16) is F16<T>);
// In checked mode, verifies the type.
x16 = m16;
l16 = m16;
x16 = confuse(m16);
l16 = confuse(m16);
/// Function(core.List<>) Function()
void testF17() {
Expect.isTrue(f17 is F17<int>);
Expect.isTrue(confuse(f17) is F17<int>);
// In checked mode, verifies the type.
Function(core.List<>) Function() l17;
// The static function f17 sets `T` to `int`.
if (tIsInt) {
x17 = f17 as dynamic;
l17 = f17 as dynamic;
x17 = confuse(f17);
l17 = confuse(f17);
Expect.isTrue(m17 is F17<T>);
Expect.isTrue(m17 is Function(core.List<>) Function());
Expect.isTrue(confuse(m17) is F17<T>);
// In checked mode, verifies the type.
x17 = m17;
l17 = m17;
x17 = confuse(m17);
l17 = confuse(m17);
/// void Function(int, [int]) Function()
void testF18() {
Expect.isTrue(f18 is F18<int>);
Expect.isTrue(confuse(f18) is F18<int>);
// In checked mode, verifies the type.
void Function(int, [int]) Function() l18;
// The static function f18 sets `T` to `int`.
if (tIsInt) {
x18 = f18 as dynamic;
l18 = f18 as dynamic;
x18 = confuse(f18);
l18 = confuse(f18);
Expect.isTrue(m18 is F18<T>);
Expect.isTrue(m18 is void Function(int, [int]) Function());
Expect.isTrue(confuse(m18) is F18<T>);
// In checked mode, verifies the type.
x18 = m18;
l18 = m18;
x18 = confuse(m18);
l18 = confuse(m18);
/// void Function(int, {List<Function> x}) Function()
void testF19() {
Expect.isTrue(f19 is F19<int>);
Expect.isTrue(confuse(f19) is F19<int>);
// In checked mode, verifies the type.
void Function(int, {List<Function> x}) Function() l19;
// The static function f19 sets `T` to `int`.
if (tIsInt) {
x19 = f19 as dynamic;
l19 = f19 as dynamic;
x19 = confuse(f19);
l19 = confuse(f19);
Expect.isTrue(m19 is F19<T>);
Expect.isTrue(m19 is void Function(int, {List<Function> x}) Function());
Expect.isTrue(confuse(m19) is F19<T>);
// In checked mode, verifies the type.
x19 = m19;
l19 = m19;
x19 = confuse(m19);
l19 = confuse(m19);
/// int Function<A>(int x) Function()
void testF20() {
Expect.isTrue(f20 is F20<int>);
Expect.isTrue(confuse(f20) is F20<int>);
// In checked mode, verifies the type.
int Function<A>(int x) Function() l20;
// The static function f20 sets `T` to `int`.
if (tIsInt) {
x20 = f20 as dynamic;
l20 = f20 as dynamic;
x20 = confuse(f20);
l20 = confuse(f20);
Expect.isTrue(m20 is F20<T>);
Expect.isTrue(m20 is int Function<A>(int x) Function());
Expect.isTrue(confuse(m20) is F20<T>);
// In checked mode, verifies the type.
x20 = m20;
l20 = m20;
x20 = confuse(m20);
l20 = confuse(m20);
/// core.List<> Function<A>(Function x) Function()
void testF21() {
Expect.isTrue(f21 is F21<int>);
Expect.isTrue(confuse(f21) is F21<int>);
// In checked mode, verifies the type.
core.List<> Function<A>(Function x) Function() l21;
// The static function f21 sets `T` to `int`.
if (tIsInt) {
x21 = f21 as dynamic;
l21 = f21 as dynamic;
x21 = confuse(f21);
l21 = confuse(f21);
Expect.isTrue(m21 is F21<T>);
m21 is core.List<> Function<A>(Function x) Function());
Expect.isTrue(confuse(m21) is F21<T>);
// In checked mode, verifies the type.
x21 = m21;
l21 = m21;
x21 = confuse(m21);
l21 = confuse(m21);
/// A Function<A>(List<Function> x) Function()
void testF22() {
Expect.isTrue(f22 is F22<int>);
Expect.isTrue(confuse(f22) is F22<int>);
// In checked mode, verifies the type.
A Function<A>(List<Function> x) Function() l22;
// The static function f22 sets `T` to `int`.
if (tIsInt) {
x22 = f22 as dynamic;
l22 = f22 as dynamic;
x22 = confuse(f22);
l22 = confuse(f22);
Expect.isTrue(m22 is F22<T>);
Expect.isTrue(m22 is A Function<A>(List<Function> x) Function());
Expect.isTrue(confuse(m22) is F22<T>);
// In checked mode, verifies the type.
x22 = m22;
l22 = m22;
x22 = confuse(m22);
l22 = confuse(m22);
/// B Function(B x) Function<B extends>()
void testF23() {
Expect.isTrue(f23 is F23<int>);
Expect.isTrue(confuse(f23) is F23<int>);
// In checked mode, verifies the type.
B Function(B x) Function<B extends>() l23;
// The static function f23 sets `T` to `int`.
if (tIsInt) {
x23 = f23 as dynamic;
l23 = f23 as dynamic;
x23 = confuse(f23);
l23 = confuse(f23);
Expect.isTrue(m23 is F23<T>);
Expect.isTrue(m23 is B Function(B x) Function<B extends>());
Expect.isTrue(confuse(m23) is F23<T>);
// In checked mode, verifies the type.
x23 = m23;
l23 = m23;
x23 = confuse(m23);
l23 = confuse(m23);
void main() {
new U32().runTests();
new U32<int>(tIsInt: true).runTests();
new U32<bool>(tIsBool: true).runTests();