library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:49:29: Error: A value of type 'Struct?' can't be assigned to a variable of type 'StructA?'.
//  - 'Struct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
//  - 'StructA' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
//   structA.property = struct.property; // error
//                             ^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:50:29: Error: A value of type 'Struct?' can't be assigned to a variable of type 'StructB?'.
//  - 'Struct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
//  - 'StructB' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
//   structB.property = struct.property; // error
//                             ^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:52:27: Error: The value 'null' can't be assigned to a variable of type 'Struct' because 'Struct' is not nullable.
//  - 'Struct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
//   new Struct().property = null; // error
//                           ^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:53:28: Error: The value 'null' can't be assigned to a variable of type 'StructA' because 'StructA' is not nullable.
//  - 'StructA' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
//   new StructA().property = null; // error
//                            ^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:54:28: Error: The value 'null' can't be assigned to a variable of type 'StructB' because 'StructB' is not nullable.
//  - 'StructB' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
//   new StructB().property = null; // error
//                            ^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:59:3: Error: Non-nullable variable 'nonStruct' must be assigned before it can be used.
//   nonStruct.method(); // error
//   ^^^^^^^^^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:59:13: Error: The method 'method' isn't defined for the class 'NonStruct'.
//  - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
// Try correcting the name to the name of an existing method, or defining a method named 'method'.
//   nonStruct.method(); // error
//             ^^^^^^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:60:3: Error: Non-nullable variable 'nonStruct' must be assigned before it can be used.
//   nonStruct.property = nonStruct.property; // error
//   ^^^^^^^^^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:60:24: Error: Non-nullable variable 'nonStruct' must be assigned before it can be used.
//   nonStruct.property = nonStruct.property; // error
//                        ^^^^^^^^^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:60:34: Error: The getter 'property' isn't defined for the class 'NonStruct'.
//  - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
// Try correcting the name to the name of an existing getter, or defining a getter or field named 'property'.
//   nonStruct.property = nonStruct.property; // error
//                                  ^^^^^^^^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:60:13: Error: The setter 'property' isn't defined for the class 'NonStruct'.
//  - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
// Try correcting the name to the name of an existing setter, or defining a setter or field named 'property'.
//   nonStruct.property = nonStruct.property; // error
//             ^^^^^^^^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:61:19: Error: The method 'method' isn't defined for the class 'NonStruct'.
//  - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
// Try correcting the name to the name of an existing method, or defining a method named 'method'.
//   new NonStruct().method(); // error
//                   ^^^^^^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:62:19: Error: The getter 'property' isn't defined for the class 'NonStruct'.
//  - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
// Try correcting the name to the name of an existing getter, or defining a getter or field named 'property'.
//   new NonStruct().property; // error
//                   ^^^^^^^^
//
// pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:63:19: Error: The setter 'property' isn't defined for the class 'NonStruct'.
//  - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
// Try correcting the name to the name of an existing setter, or defining a setter or field named 'property'.
//   new NonStruct().property = null; // error
//                   ^^^^^^^^
//
import self as self;
import "dart:core" as core;

class Struct extends core::Object {
  synthetic constructor •() → self::Struct
    : super core::Object::•()
    ;
}
class StructA extends self::Struct {
  synthetic constructor •() → self::StructA
    : super self::Struct::•()
    ;
}
class StructB extends self::Struct {
  synthetic constructor •() → self::StructB
    : super self::Struct::•()
    ;
}
class NonStruct extends core::Object {
  synthetic constructor •() → self::NonStruct
    : super core::Object::•()
    ;
}
extension Extension<T extends self::Struct?> on T% {
  method method = self::Extension|method;
  tearoff method = self::Extension|get#method;
  get property = self::Extension|get#property;
  set property = self::Extension|set#property;
}
static method Extension|method<T extends self::Struct?>(lowered final self::Extension|method::T% #this) → self::Extension|method::T%
  return #this;
static method Extension|get#method<T extends self::Struct?>(lowered final self::Extension|get#method::T% #this) → () → self::Extension|get#method::T%
  return () → self::Extension|get#method::T% => self::Extension|method<self::Extension|get#method::T%>(#this);
static method Extension|get#property<T extends self::Struct?>(lowered final self::Extension|get#property::T% #this) → self::Extension|get#property::T%
  return #this;
static method Extension|set#property<T extends self::Struct?>(lowered final self::Extension|set#property::T% #this, self::Extension|set#property::T% value) → void {}
static method main() → dynamic {
  self::Struct? struct;
  self::StructA? structA;
  self::StructB? structB;
  self::Extension|method<self::Struct?>(struct);
  self::Extension|set#property<self::Struct?>(struct, self::Extension|get#property<self::Struct?>(struct));
  self::Extension|set#property<self::Struct?>(struct, self::Extension|get#property<self::StructA?>(structA));
  self::Extension|set#property<self::Struct?>(struct, self::Extension|get#property<self::StructB?>(structB));
  self::Extension|method<self::StructA?>(structA);
  self::Extension|set#property<self::StructA?>(structA, self::Extension|get#property<self::StructA?>(structA));
  self::Extension|method<self::StructB?>(structB);
  self::Extension|set#property<self::StructB?>(structB, self::Extension|get#property<self::StructB?>(structB));
  self::Extension|method<self::Struct>(new self::Struct::•());
  self::Extension|get#property<self::Struct>(new self::Struct::•());
  self::Extension|set#property<self::Struct?>(struct, null);
  self::Extension|method<self::StructA>(new self::StructA::•());
  self::Extension|get#property<self::StructA>(new self::StructA::•());
  self::Extension|set#property<self::StructA?>(structA, null);
  self::Extension|method<self::StructB>(new self::StructB::•());
  self::Extension|get#property<self::StructB>(new self::StructB::•());
  self::Extension|set#property<self::StructB?>(structB, null);
}
static method errors() → dynamic {
  self::Struct? struct;
  self::StructA? structA;
  self::StructB? structB;
  self::Extension|set#property<self::StructA?>(structA, invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:49:29: Error: A value of type 'Struct?' can't be assigned to a variable of type 'StructA?'.
 - 'Struct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
 - 'StructA' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
  structA.property = struct.property; // error
                            ^" in self::Extension|get#property<self::Struct?>(struct) as{TypeError,ForNonNullableByDefault} self::StructA?);
  self::Extension|set#property<self::StructB?>(structB, invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:50:29: Error: A value of type 'Struct?' can't be assigned to a variable of type 'StructB?'.
 - 'Struct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
 - 'StructB' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
  structB.property = struct.property; // error
                            ^" in self::Extension|get#property<self::Struct?>(struct) as{TypeError,ForNonNullableByDefault} self::StructB?);
  self::Extension|set#property<self::Struct>(new self::Struct::•(), invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:52:27: Error: The value 'null' can't be assigned to a variable of type 'Struct' because 'Struct' is not nullable.
 - 'Struct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
  new Struct().property = null; // error
                          ^" in null as{TypeError,ForNonNullableByDefault} self::Struct);
  self::Extension|set#property<self::StructA>(new self::StructA::•(), invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:53:28: Error: The value 'null' can't be assigned to a variable of type 'StructA' because 'StructA' is not nullable.
 - 'StructA' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
  new StructA().property = null; // error
                           ^" in null as{TypeError,ForNonNullableByDefault} self::StructA);
  self::Extension|set#property<self::StructB>(new self::StructB::•(), invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:54:28: Error: The value 'null' can't be assigned to a variable of type 'StructB' because 'StructB' is not nullable.
 - 'StructB' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
  new StructB().property = null; // error
                           ^" in null as{TypeError,ForNonNullableByDefault} self::StructB);
}
static method testNonStruct() → dynamic {
  self::NonStruct nonStruct;
  invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:59:13: Error: The method 'method' isn't defined for the class 'NonStruct'.
 - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
Try correcting the name to the name of an existing method, or defining a method named 'method'.
  nonStruct.method(); // error
            ^^^^^^" in invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:59:3: Error: Non-nullable variable 'nonStruct' must be assigned before it can be used.
  nonStruct.method(); // error
  ^^^^^^^^^" in nonStruct{<unresolved>}.method();
  invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:60:13: Error: The setter 'property' isn't defined for the class 'NonStruct'.
 - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
Try correcting the name to the name of an existing setter, or defining a setter or field named 'property'.
  nonStruct.property = nonStruct.property; // error
            ^^^^^^^^" in invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:60:3: Error: Non-nullable variable 'nonStruct' must be assigned before it can be used.
  nonStruct.property = nonStruct.property; // error
  ^^^^^^^^^" in nonStruct{<unresolved>}.property = invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:60:34: Error: The getter 'property' isn't defined for the class 'NonStruct'.
 - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'property'.
  nonStruct.property = nonStruct.property; // error
                                 ^^^^^^^^" in invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:60:24: Error: Non-nullable variable 'nonStruct' must be assigned before it can be used.
  nonStruct.property = nonStruct.property; // error
                       ^^^^^^^^^" in nonStruct{<unresolved>}.property;
  invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:61:19: Error: The method 'method' isn't defined for the class 'NonStruct'.
 - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
Try correcting the name to the name of an existing method, or defining a method named 'method'.
  new NonStruct().method(); // error
                  ^^^^^^" in new self::NonStruct::•(){<unresolved>}.method();
  invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:62:19: Error: The getter 'property' isn't defined for the class 'NonStruct'.
 - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'property'.
  new NonStruct().property; // error
                  ^^^^^^^^" in new self::NonStruct::•(){<unresolved>}.property;
  invalid-expression "pkg/front_end/testcases/extensions/on_type_variable_inference2.dart:63:19: Error: The setter 'property' isn't defined for the class 'NonStruct'.
 - 'NonStruct' is from 'pkg/front_end/testcases/extensions/on_type_variable_inference2.dart'.
Try correcting the name to the name of an existing setter, or defining a setter or field named 'property'.
  new NonStruct().property = null; // error
                  ^^^^^^^^" in new self::NonStruct::•(){<unresolved>}.property = null;
}