library;
import self as self;
import "dart:core" as core;

class MapLike<K extends core::Object* = dynamic, V extends core::Object* = dynamic> extends core::Object {
  final field core::Map<self::MapLike::K*, self::MapLike::V*>* _map = <self::MapLike::K*, self::MapLike::V*>{};
  synthetic constructor •() → self::MapLike<self::MapLike::K*, self::MapLike::V*>*
    : super core::Object::•()
    ;
  method get(core::Object* key) → self::MapLike::V*
    return this.{self::MapLike::_map}.{core::Map::[]}(key);
  method put(generic-covariant-impl self::MapLike::K* key, generic-covariant-impl self::MapLike::V* value) → self::MapLike::V*
    return let final core::Map<self::MapLike::K*, self::MapLike::V*>* #t1 = this.{self::MapLike::_map} in let final self::MapLike::K* #t2 = key in let final self::MapLike::V* #t3 = value in let final void #t4 = #t1.{core::Map::[]=}(#t2, #t3) in #t3;
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ toString() → core::String*; -> core::Object::toString
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ runtimeType() → core::Type*; -> core::Object::runtimeType
}
extension Extension<K extends core::Object* = dynamic, V extends core::Object* = dynamic> on self::MapLike<K*, V*>* {
  operator [] = self::Extension|[];
  operator []= = self::Extension|[]=;
}
static method Extension|[]<K extends core::Object* = dynamic, V extends core::Object* = dynamic>(final self::MapLike<self::Extension|[]::K*, self::Extension|[]::V*>* #this, core::Object* key) → self::Extension|[]::V*
  return #this.{self::MapLike::get}(key);
static method Extension|[]=<K extends core::Object* = dynamic, V extends core::Object* = dynamic>(final self::MapLike<self::Extension|[]=::K*, self::Extension|[]=::V*>* #this, self::Extension|[]=::K* key, self::Extension|[]=::V* value) → void
  return #this.{self::MapLike::put}(key, value);
static method main() → dynamic {
  self::implicit();
  self::explicitWithTypeArguments();
  self::explicitInferredTypeArguments();
}
static method implicit() → dynamic {
  self::MapLike<core::int*, core::String*>* map1 = new self::MapLike::•<core::int*, core::String*>();
  self::expect(null, self::Extension|[]<core::int*, core::String*>(map1, 0));
  map1.{self::MapLike::put}(0, "0");
  self::expect("0", self::Extension|[]<core::int*, core::String*>(map1, 0));
  self::expect(null, self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::Extension|[]=<core::int*, core::String*>(map1, 1, "1");
  self::expect("1", self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::expect("2", let final self::MapLike<core::int*, core::String*>* #t5 = map1 in let final core::int* #t6 = 1 in let final core::String* #t7 = "2" in let final void #t8 = self::Extension|[]=<core::int*, core::String*>(#t5, #t6, #t7) in #t7);
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  let final self::MapLike<core::int*, core::String*>* #t9 = map1 in let final core::int* #t10 = 1 in self::Extension|[]<core::int*, core::String*>(#t9, #t10).{core::String::==}(null) ?{core::String*} self::Extension|[]=<core::int*, core::String*>(#t9, #t10, "3") : null;
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::expect("2", let final self::MapLike<core::int*, core::String*>* #t11 = map1 in let final core::int* #t12 = 1 in let final core::String* #t13 = self::Extension|[]<core::int*, core::String*>(#t11, #t12) in #t13.{core::String::==}(null) ?{core::String*} let final core::String* #t14 = "4" in let final void #t15 = self::Extension|[]=<core::int*, core::String*>(#t11, #t12, #t14) in #t14 : #t13);
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  let final self::MapLike<core::int*, core::String*>* #t16 = map1 in let final core::int* #t17 = 2 in self::Extension|[]<core::int*, core::String*>(#t16, #t17).{core::String::==}(null) ?{core::String*} self::Extension|[]=<core::int*, core::String*>(#t16, #t17, "2") : null;
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 2));
  self::expect("3", let final self::MapLike<core::int*, core::String*>* #t18 = map1 in let final core::int* #t19 = 3 in let final core::String* #t20 = self::Extension|[]<core::int*, core::String*>(#t18, #t19) in #t20.{core::String::==}(null) ?{core::String*} let final core::String* #t21 = "3" in let final void #t22 = self::Extension|[]=<core::int*, core::String*>(#t18, #t19, #t21) in #t21 : #t20);
  self::expect("3", self::Extension|[]<core::int*, core::String*>(map1, 3));
  self::MapLike<core::int*, core::int*>* map2 = new self::MapLike::•<core::int*, core::int*>();
  self::expect(1, let final self::MapLike<core::int*, core::int*>* #t23 = map2 in let final core::int* #t24 = 0 in let final core::int* #t25 = 1 in let final void #t26 = self::Extension|[]=<core::int*, core::int*>(#t23, #t24, #t25) in #t25);
  self::expect(3, let final self::MapLike<core::int*, core::int*>* #t27 = map2 in let final core::int* #t28 = 0 in let final core::int* #t29 = self::Extension|[]<core::int*, core::int*>(#t27, #t28).{core::num::+}(2) in let final void #t30 = self::Extension|[]=<core::int*, core::int*>(#t27, #t28, #t29) in #t29);
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t31 = map2 in let final core::int* #t32 = 0 in let final core::int* #t33 = self::Extension|[]<core::int*, core::int*>(#t31, #t32).{core::num::+}(2) in let final void #t34 = self::Extension|[]=<core::int*, core::int*>(#t31, #t32, #t33) in #t33);
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t35 = map2 in let final core::int* #t36 = 0 in let final core::int* #t37 = self::Extension|[]<core::int*, core::int*>(#t35, #t36) in let final void #t38 = self::Extension|[]=<core::int*, core::int*>(#t35, #t36, #t37.{core::num::+}(1)) in #t37);
  self::expect(6, self::Extension|[]<core::int*, core::int*>(map2, 0));
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t39 = map2 in let final core::int* #t40 = 0 in let final core::int* #t41 = self::Extension|[]<core::int*, core::int*>(#t39, #t40).{core::num::-}(1) in let final void #t42 = self::Extension|[]=<core::int*, core::int*>(#t39, #t40, #t41) in #t41);
  self::expect(5, self::Extension|[]<core::int*, core::int*>(map2, 0));
}
static method explicitWithTypeArguments() → dynamic {
  self::MapLike<core::int*, core::String*>* map1 = new self::MapLike::•<core::int*, core::String*>();
  self::expect(null, self::Extension|[]<core::int*, core::String*>(map1, 0));
  map1.{self::MapLike::put}(0, "0");
  self::expect("0", self::Extension|[]<core::int*, core::String*>(map1, 0));
  self::expect(null, self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::Extension|[]=<core::int*, core::String*>(map1, 1, "1");
  self::expect("1", self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::expect("2", let final self::MapLike<core::int*, core::String*>* #t43 = map1 in let final core::int* #t44 = 1 in let final core::String* #t45 = "2" in let final void #t46 = self::Extension|[]=<core::int*, core::String*>(#t43, #t44, #t45) in #t45);
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  let final self::MapLike<core::int*, core::String*>* #t47 = map1 in let final core::int* #t48 = 1 in self::Extension|[]<core::int*, core::String*>(#t47, #t48).{core::String::==}(null) ?{core::String*} self::Extension|[]=<core::int*, core::String*>(#t47, #t48, "3") : null;
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::expect("2", let final self::MapLike<core::int*, core::String*>* #t49 = map1 in let final core::int* #t50 = 1 in let final core::String* #t51 = self::Extension|[]<core::int*, core::String*>(#t49, #t50) in #t51.{core::String::==}(null) ?{core::String*} let final core::String* #t52 = "4" in let final void #t53 = self::Extension|[]=<core::int*, core::String*>(#t49, #t50, #t52) in #t52 : #t51);
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  let final self::MapLike<core::int*, core::String*>* #t54 = map1 in let final core::int* #t55 = 2 in self::Extension|[]<core::int*, core::String*>(#t54, #t55).{core::String::==}(null) ?{core::String*} self::Extension|[]=<core::int*, core::String*>(#t54, #t55, "2") : null;
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 2));
  self::expect("3", let final self::MapLike<core::int*, core::String*>* #t56 = map1 in let final core::int* #t57 = 3 in let final core::String* #t58 = self::Extension|[]<core::int*, core::String*>(#t56, #t57) in #t58.{core::String::==}(null) ?{core::String*} let final core::String* #t59 = "3" in let final void #t60 = self::Extension|[]=<core::int*, core::String*>(#t56, #t57, #t59) in #t59 : #t58);
  self::expect("3", self::Extension|[]<core::int*, core::String*>(map1, 3));
  self::MapLike<core::int*, core::int*>* map2 = new self::MapLike::•<core::int*, core::int*>();
  self::expect(1, let final self::MapLike<core::int*, core::int*>* #t61 = map2 in let final core::int* #t62 = 0 in let final core::int* #t63 = 1 in let final void #t64 = self::Extension|[]=<core::int*, core::int*>(#t61, #t62, #t63) in #t63);
  self::expect(3, let final self::MapLike<core::int*, core::int*>* #t65 = map2 in let final core::int* #t66 = 0 in let final core::int* #t67 = self::Extension|[]<core::int*, core::int*>(#t65, #t66).{core::num::+}(2) in let final void #t68 = self::Extension|[]=<core::int*, core::int*>(#t65, #t66, #t67) in #t67);
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t69 = map2 in let final core::int* #t70 = 0 in let final core::int* #t71 = self::Extension|[]<core::int*, core::int*>(#t69, #t70).{core::num::+}(2) in let final void #t72 = self::Extension|[]=<core::int*, core::int*>(#t69, #t70, #t71) in #t71);
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t73 = map2 in let final core::int* #t74 = 0 in let final core::int* #t75 = self::Extension|[]<core::int*, core::int*>(#t73, #t74) in let final void #t76 = self::Extension|[]=<core::int*, core::int*>(#t73, #t74, #t75.{core::num::+}(1)) in #t75);
  self::expect(6, self::Extension|[]<core::int*, core::int*>(map2, 0));
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t77 = map2 in let final core::int* #t78 = 0 in let final core::int* #t79 = self::Extension|[]<core::int*, core::int*>(#t77, #t78).{core::num::-}(1) in let final void #t80 = self::Extension|[]=<core::int*, core::int*>(#t77, #t78, #t79) in #t79);
  self::expect(5, self::Extension|[]<core::int*, core::int*>(map2, 0));
}
static method explicitInferredTypeArguments() → dynamic {
  self::MapLike<core::int*, core::String*>* map1 = new self::MapLike::•<core::int*, core::String*>();
  self::expect(null, self::Extension|[]<core::int*, core::String*>(map1, 0));
  map1.{self::MapLike::put}(0, "0");
  self::expect("0", self::Extension|[]<core::int*, core::String*>(map1, 0));
  self::expect(null, self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::Extension|[]=<core::int*, core::String*>(map1, 1, "1");
  self::expect("1", self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::expect("2", let final self::MapLike<core::int*, core::String*>* #t81 = map1 in let final core::int* #t82 = 1 in let final core::String* #t83 = "2" in let final void #t84 = self::Extension|[]=<core::int*, core::String*>(#t81, #t82, #t83) in #t83);
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  let final self::MapLike<core::int*, core::String*>* #t85 = map1 in let final core::int* #t86 = 1 in self::Extension|[]<core::int*, core::String*>(#t85, #t86).{core::String::==}(null) ?{core::String*} self::Extension|[]=<core::int*, core::String*>(#t85, #t86, "3") : null;
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  self::expect("2", let final self::MapLike<core::int*, core::String*>* #t87 = map1 in let final core::int* #t88 = 1 in let final core::String* #t89 = self::Extension|[]<core::int*, core::String*>(#t87, #t88) in #t89.{core::String::==}(null) ?{core::String*} let final core::String* #t90 = "4" in let final void #t91 = self::Extension|[]=<core::int*, core::String*>(#t87, #t88, #t90) in #t90 : #t89);
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 1));
  let final self::MapLike<core::int*, core::String*>* #t92 = map1 in let final core::int* #t93 = 2 in self::Extension|[]<core::int*, core::String*>(#t92, #t93).{core::String::==}(null) ?{core::String*} self::Extension|[]=<core::int*, core::String*>(#t92, #t93, "2") : null;
  self::expect("2", self::Extension|[]<core::int*, core::String*>(map1, 2));
  self::expect("3", let final self::MapLike<core::int*, core::String*>* #t94 = map1 in let final core::int* #t95 = 3 in let final core::String* #t96 = self::Extension|[]<core::int*, core::String*>(#t94, #t95) in #t96.{core::String::==}(null) ?{core::String*} let final core::String* #t97 = "3" in let final void #t98 = self::Extension|[]=<core::int*, core::String*>(#t94, #t95, #t97) in #t97 : #t96);
  self::expect("3", self::Extension|[]<core::int*, core::String*>(map1, 3));
  self::MapLike<core::int*, core::int*>* map2 = new self::MapLike::•<core::int*, core::int*>();
  self::expect(1, let final self::MapLike<core::int*, core::int*>* #t99 = map2 in let final core::int* #t100 = 0 in let final core::int* #t101 = 1 in let final void #t102 = self::Extension|[]=<core::int*, core::int*>(#t99, #t100, #t101) in #t101);
  self::expect(3, let final self::MapLike<core::int*, core::int*>* #t103 = map2 in let final core::int* #t104 = 0 in let final core::int* #t105 = self::Extension|[]<core::int*, core::int*>(#t103, #t104).{core::num::+}(2) in let final void #t106 = self::Extension|[]=<core::int*, core::int*>(#t103, #t104, #t105) in #t105);
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t107 = map2 in let final core::int* #t108 = 0 in let final core::int* #t109 = self::Extension|[]<core::int*, core::int*>(#t107, #t108).{core::num::+}(2) in let final void #t110 = self::Extension|[]=<core::int*, core::int*>(#t107, #t108, #t109) in #t109);
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t111 = map2 in let final core::int* #t112 = 0 in let final core::int* #t113 = self::Extension|[]<core::int*, core::int*>(#t111, #t112) in let final void #t114 = self::Extension|[]=<core::int*, core::int*>(#t111, #t112, #t113.{core::num::+}(1)) in #t113);
  self::expect(6, self::Extension|[]<core::int*, core::int*>(map2, 0));
  self::expect(5, let final self::MapLike<core::int*, core::int*>* #t115 = map2 in let final core::int* #t116 = 0 in let final core::int* #t117 = self::Extension|[]<core::int*, core::int*>(#t115, #t116).{core::num::-}(1) in let final void #t118 = self::Extension|[]=<core::int*, core::int*>(#t115, #t116, #t117) in #t117);
  self::expect(5, self::Extension|[]<core::int*, core::int*>(map2, 0));
}
static method expect(dynamic expected, dynamic actual) → dynamic {
  if(!expected.{core::Object::==}(actual)) {
    throw "Mismatch: expected=${expected}, actual=${actual}";
  }
}