library test /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:14:65: Error: A value of type 'String Function<T>(String)' can't be assigned to a variable of type 'String Function<S>(int)'.
//     v = /*error:INVALID_ASSIGNMENT*/ <T> /*@returnType=String*/ (String x) =>
//                                                                 ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:16:76: Error: A value of type 'int' can't be returned from a function with return type 'String'.
//     v = /*error:INVALID_ASSIGNMENT*/ <T> /*@returnType=String*/ (int x) => 3;
//                                                                            ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:18:47: Error: A value of type 'int' can't be returned from a function with return type 'String'.
//       return /*error:RETURN_OF_INVALID_TYPE*/ 3;
//                                               ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:28:9: Error: A value of type 'int' can't be returned from a function with return type 'String'.
//         3;
//         ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:30:47: Error: A value of type 'int' can't be returned from a function with return type 'String'.
//       return /*error:RETURN_OF_INVALID_TYPE*/ 3;
//                                               ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:33:47: Error: A value of type 'int' can't be returned from a function with return type 'String'.
//       return /*error:RETURN_OF_INVALID_TYPE*/ x;
//                                               ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:43:71: Error: A value of type 'List<String> Function<T>(String)' can't be assigned to a variable of type 'List<String> Function<S>(int)'.
//  - 'List' is from 'dart:core'.
//     v = /*error:INVALID_ASSIGNMENT*/ <T> /*@returnType=List<String>*/ (String
//                                                                       ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:46:54: Error: A value of type 'int' can't be assigned to a variable of type 'String'.
//           /*error:LIST_ELEMENT_TYPE_NOT_ASSIGNABLE*/ 3
//                                                      ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:50:52: Error: A value of type 'int' can't be assigned to a variable of type 'String'.
//         /*error:LIST_ELEMENT_TYPE_NOT_ASSIGNABLE*/ 3
//                                                    ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:64:9: Error: A value of type 'int' can't be returned from a function with return type 'String'.
//         x;
//         ^
//
// pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:66:10: Error: The method 'substring' isn't defined for the class 'int'.
// Try correcting the name to the name of an existing method, or defining a method named 'substring'.
//         .substring(3);
//          ^^^^^^^^^
//
import self as self;
import "dart:core" as core;

static method test() → void {
  {
    function f<S extends core::Object? = dynamic>(core::int x) → core::String
      return throw "";
    <S extends core::Object? = dynamic>(core::int) → core::String v = f;
    v = <T extends core::Object? = dynamic>(core::int x) → Never => throw "";
    v = <T extends core::Object? = dynamic>(core::int x) → core::String => "hello";
    v = invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:14:65: Error: A value of type 'String Function<T>(String)' can't be assigned to a variable of type 'String Function<S>(int)'.
    v = /*error:INVALID_ASSIGNMENT*/ <T> /*@returnType=String*/ (String x) =>
                                                                ^" in (<T extends core::Object? = dynamic>(core::String x) → core::String => "hello") as{TypeError,ForNonNullableByDefault} <S extends core::Object? = dynamic>(core::int) → core::String;
    v = <T extends core::Object? = dynamic>(core::int x) → core::String => invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:16:76: Error: A value of type 'int' can't be returned from a function with return type 'String'.
    v = /*error:INVALID_ASSIGNMENT*/ <T> /*@returnType=String*/ (int x) => 3;
                                                                           ^" in 3 as{TypeError,ForNonNullableByDefault} core::String;
    v = <T extends core::Object? = dynamic>(core::int x) → core::String {
      return invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:18:47: Error: A value of type 'int' can't be returned from a function with return type 'String'.
      return /*error:RETURN_OF_INVALID_TYPE*/ 3;
                                              ^" in 3 as{TypeError,ForNonNullableByDefault} core::String;
    };
  }
  {
    function f<S extends core::Object? = dynamic>(core::int x) → core::String
      return throw "";
    <S extends core::Object? = dynamic>(core::int) → core::String v = f;
    v = <T extends core::Object? = dynamic>(core::int x) → Never => throw "";
    v = <T extends core::Object? = dynamic>(core::int x) → core::String => "hello";
    v = <T extends core::Object? = dynamic>(core::int x) → core::String => invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:28:9: Error: A value of type 'int' can't be returned from a function with return type 'String'.
        3;
        ^" in 3 as{TypeError,ForNonNullableByDefault} core::String;
    v = <T extends core::Object? = dynamic>(core::int x) → core::String {
      return invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:30:47: Error: A value of type 'int' can't be returned from a function with return type 'String'.
      return /*error:RETURN_OF_INVALID_TYPE*/ 3;
                                              ^" in 3 as{TypeError,ForNonNullableByDefault} core::String;
    };
    v = <T extends core::Object? = dynamic>(core::int x) → core::String {
      return invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:33:47: Error: A value of type 'int' can't be returned from a function with return type 'String'.
      return /*error:RETURN_OF_INVALID_TYPE*/ x;
                                              ^" in x as{TypeError,ForNonNullableByDefault} core::String;
    };
  }
  {
    function f<S extends core::Object? = dynamic>(core::int x) → core::List<core::String>
      return throw "";
    <S extends core::Object? = dynamic>(core::int) → core::List<core::String> v = f;
    v = <T extends core::Object? = dynamic>(core::int x) → Never => throw "";
    v = <T extends core::Object? = dynamic>(core::int x) → core::List<core::String> => <core::String>["hello"];
    v = invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:43:71: Error: A value of type 'List<String> Function<T>(String)' can't be assigned to a variable of type 'List<String> Function<S>(int)'.
 - 'List' is from 'dart:core'.
    v = /*error:INVALID_ASSIGNMENT*/ <T> /*@returnType=List<String>*/ (String
                                                                      ^" in (<T extends core::Object? = dynamic>(core::String x) → core::List<core::String> => <core::String>["hello"]) as{TypeError,ForNonNullableByDefault} <S extends core::Object? = dynamic>(core::int) → core::List<core::String>;
    v = <T extends core::Object? = dynamic>(core::int x) → core::List<core::String> => <core::String>[invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:46:54: Error: A value of type 'int' can't be assigned to a variable of type 'String'.
          /*error:LIST_ELEMENT_TYPE_NOT_ASSIGNABLE*/ 3
                                                     ^" in 3 as{TypeError,ForNonNullableByDefault} core::String];
    v = <T extends core::Object? = dynamic>(core::int x) → core::List<core::String> {
      return <core::String>[invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:50:52: Error: A value of type 'int' can't be assigned to a variable of type 'String'.
        /*error:LIST_ELEMENT_TYPE_NOT_ASSIGNABLE*/ 3
                                                   ^" in 3 as{TypeError,ForNonNullableByDefault} core::String];
    };
  }
  {
    function int2int<S extends core::Object? = dynamic>(core::int x) → core::int
      return throw "";
    function int2String<T extends core::Object? = dynamic>(core::int x) → core::String
      return throw "";
    function string2String<T extends core::Object? = dynamic>(core::String x) → core::String
      return throw "";
    <S extends core::Object? = dynamic>(core::int) → core::int x = int2int;
    x = <T extends core::Object? = dynamic>(core::int x) → core::int => x;
    x = <T extends core::Object? = dynamic>(core::int x) → core::int => x.{core::num::+}(1){(core::num) → core::int};
    <T extends core::Object? = dynamic>(core::int) → core::String y = int2String;
    y = <T extends core::Object? = dynamic>(core::int x) → core::String => invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:64:9: Error: A value of type 'int' can't be returned from a function with return type 'String'.
        x;
        ^" in x as{TypeError,ForNonNullableByDefault} core::String;
    y = <T extends core::Object? = dynamic>(core::int x) → core::String => invalid-expression "pkg/front_end/testcases/inference/downwards_inference_on_generic_function_expressions.dart:66:10: Error: The method 'substring' isn't defined for the class 'int'.
Try correcting the name to the name of an existing method, or defining a method named 'substring'.
        .substring(3);
         ^^^^^^^^^" in x{<unresolved>}.substring(3) as{TypeError,ForDynamic,ForNonNullableByDefault} core::String;
    <T extends core::Object? = dynamic>(core::String) → core::String z = string2String;
    z = <T extends core::Object? = dynamic>(core::String x) → core::String => x.{core::String::substring}(3){(core::int, [core::int?]) → core::String};
  }
}
static method main() → dynamic {}