library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/nnbd/issue41156.dart:39:29: Error: A non-null value must be returned since the return type 'String' doesn't allow null.
//   String Function(int) x2 = (int v) /* error */ {
//                             ^
//
// pkg/front_end/testcases/nnbd/issue41156.dart:44:29: Error: A non-null value must be returned since the return type 'Never' doesn't allow null.
//   String Function(int) x3 = (int v) /* error */ {
//                             ^
//
// pkg/front_end/testcases/nnbd/issue41156.dart:49:29: Error: A non-null value must be returned since the return type 'String' doesn't allow null.
//   String Function(int) x5 = (int v) /* error */ {
//                             ^
//
// pkg/front_end/testcases/nnbd/issue41156.dart:54:29: Error: A non-null value must be returned since the return type 'Never' doesn't allow null.
//   String Function(int) x6 = (int v) /* error */ {
//                             ^
//
// pkg/front_end/testcases/nnbd/issue41156.dart:59:37: Error: A non-null value must be returned since the return type 'String' doesn't allow null.
//   Future<String> Function(int) y2 = (int v) async /* error */ {
//                                     ^
//
// pkg/front_end/testcases/nnbd/issue41156.dart:64:37: Error: A non-null value must be returned since the return type 'Never' doesn't allow null.
//   Future<String> Function(int) y3 = (int v) async /* error */ {
//                                     ^
//
// pkg/front_end/testcases/nnbd/issue41156.dart:69:37: Error: A non-null value must be returned since the return type 'String' doesn't allow null.
//   Future<String> Function(int) y5 = (int v) async /* error */ {
//                                     ^
//
// pkg/front_end/testcases/nnbd/issue41156.dart:74:37: Error: A non-null value must be returned since the return type 'Never' doesn't allow null.
//   Future<String> Function(int) y6 = (int v) async /* error */ {
//                                     ^
//
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

static method throwing() → Never
  return throw "";
static method main() → void {
  (core::int) → core::String x1 = (core::int v) → Never => throw v;
  (core::int) → core::String x2 = (core::int v) → Never {
    throw v;
  };
  (core::int) → core::String x3 = (core::int v) → Never {
    return throw v;
  };
  (core::int) → core::String x4 = (core::int v) → Never => self::throwing();
  (core::int) → core::String x5 = (core::int v) → Never {
    self::throwing();
  };
  (core::int) → core::String x6 = (core::int v) → Never {
    return self::throwing();
  };
  (core::int) → asy::Future<core::String> y1 = (core::int v) → asy::Future<Never> async => throw v;
  (core::int) → asy::Future<core::String> y2 = (core::int v) → asy::Future<Never> async {
    throw v;
  };
  (core::int) → asy::Future<core::String> y3 = (core::int v) → asy::Future<Never> async {
    return throw v;
  };
  (core::int) → asy::Future<core::String> y4 = (core::int v) → asy::Future<Never> async => self::throwing();
  (core::int) → asy::Future<core::String> y5 = (core::int v) → asy::Future<Never> async {
    self::throwing();
  };
  (core::int) → asy::Future<core::String> y6 = (core::int v) → asy::Future<Never> async {
    return self::throwing();
  };
}
static method errors() → void async {
  (core::int) → core::String x2 = (core::int v) → core::String {
    try {
      throw v;
    }
    on dynamic catch(final dynamic _) {
    }
    return let final<BottomType> #t1 = invalid-expression "pkg/front_end/testcases/nnbd/issue41156.dart:39:29: Error: A non-null value must be returned since the return type 'String' doesn't allow null.
  String Function(int) x2 = (int v) /* error */ {
                            ^" in null;
  };
  (core::int) → core::String x3 = (core::int v) → Never {
    try {
      return throw v;
    }
    on dynamic catch(final dynamic _) {
    }
    return let final<BottomType> #t2 = invalid-expression "pkg/front_end/testcases/nnbd/issue41156.dart:44:29: Error: A non-null value must be returned since the return type 'Never' doesn't allow null.
  String Function(int) x3 = (int v) /* error */ {
                            ^" in null;
  };
  (core::int) → core::String x5 = (core::int v) → core::String {
    try {
      self::throwing();
    }
    on dynamic catch(final dynamic _) {
    }
    return let final<BottomType> #t3 = invalid-expression "pkg/front_end/testcases/nnbd/issue41156.dart:49:29: Error: A non-null value must be returned since the return type 'String' doesn't allow null.
  String Function(int) x5 = (int v) /* error */ {
                            ^" in null;
  };
  (core::int) → core::String x6 = (core::int v) → Never {
    try {
      return self::throwing();
    }
    on dynamic catch(final dynamic _) {
    }
    return let final<BottomType> #t4 = invalid-expression "pkg/front_end/testcases/nnbd/issue41156.dart:54:29: Error: A non-null value must be returned since the return type 'Never' doesn't allow null.
  String Function(int) x6 = (int v) /* error */ {
                            ^" in null;
  };
  (core::int) → asy::Future<core::String> y2 = (core::int v) → asy::Future<core::String> async {
    try {
      throw v;
    }
    on dynamic catch(final dynamic _) {
    }
    return let final<BottomType> #t5 = invalid-expression "pkg/front_end/testcases/nnbd/issue41156.dart:59:37: Error: A non-null value must be returned since the return type 'String' doesn't allow null.
  Future<String> Function(int) y2 = (int v) async /* error */ {
                                    ^" in null;
  };
  (core::int) → asy::Future<core::String> y3 = (core::int v) → asy::Future<Never> async {
    try {
      return throw v;
    }
    on dynamic catch(final dynamic _) {
    }
    return let final<BottomType> #t6 = invalid-expression "pkg/front_end/testcases/nnbd/issue41156.dart:64:37: Error: A non-null value must be returned since the return type 'Never' doesn't allow null.
  Future<String> Function(int) y3 = (int v) async /* error */ {
                                    ^" in null;
  };
  (core::int) → asy::Future<core::String> y5 = (core::int v) → asy::Future<core::String> async {
    try {
      self::throwing();
    }
    on dynamic catch(final dynamic _) {
    }
    return let final<BottomType> #t7 = invalid-expression "pkg/front_end/testcases/nnbd/issue41156.dart:69:37: Error: A non-null value must be returned since the return type 'String' doesn't allow null.
  Future<String> Function(int) y5 = (int v) async /* error */ {
                                    ^" in null;
  };
  (core::int) → asy::Future<core::String> y6 = (core::int v) → asy::Future<Never> async {
    try {
      return self::throwing();
    }
    on dynamic catch(final dynamic _) {
    }
    return let final<BottomType> #t8 = invalid-expression "pkg/front_end/testcases/nnbd/issue41156.dart:74:37: Error: A non-null value must be returned since the return type 'Never' doesn't allow null.
  Future<String> Function(int) y6 = (int v) async /* error */ {
                                    ^" in null;
  };
}