library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;

static method test1(dynamic x) → dynamic {
  hoisted has-declared-initializer core::int y;
  {
    final synthesized dynamic #0#0 = x as{TypeError,ForDynamic,ForNonNullableByDefault} core::List<core::int>;
    late final synthesized dynamic #0#6 = #0#0{core::List<dynamic>}.{core::List::[]}(0){(core::int) → dynamic};
    if(!(#0#0 is{ForNonNullableByDefault} core::List<dynamic> && #0#0{core::List<dynamic>}.{core::List::length}{core::int} =={core::num::==}{(core::Object) → core::bool} #C1 && (#0#6 is{ForNonNullableByDefault} core::int && (let final dynamic #t1 = y = #0#6{core::int} in true))))
      throw new core::StateError::•("Pattern matching error");
  }
  return y;
}
static method test2(dynamic x) → dynamic {
  hoisted has-declared-initializer core::String a;
  hoisted has-declared-initializer core::String b;
  {
    final synthesized dynamic #0#0 = x as{TypeError,ForDynamic,ForNonNullableByDefault} core::List<core::String>;
    late final synthesized core::int #0#2 = #0#0{core::List<dynamic>}.{core::List::length}{core::int};
    late final synthesized dynamic #0#6 = #0#0{core::List<dynamic>}.{core::List::[]}(0){(core::int) → dynamic};
    late final synthesized dynamic #0#7 = #0#0{core::List<dynamic>}.{core::List::[]}(#0#2.{core::num::-}(1){(core::num) → core::int}){(core::int) → dynamic};
    if(!(#0#0 is{ForNonNullableByDefault} core::List<dynamic> && #0#2.{core::num::>=}(#C2){(core::num) → core::bool} && (#0#6 is{ForNonNullableByDefault} core::String && (let final dynamic #t2 = a = #0#6{core::String} in true)) && (#0#7 is{ForNonNullableByDefault} core::String && (let final dynamic #t3 = b = #0#7{core::String} in true))))
      throw new core::StateError::•("Pattern matching error");
  }
  return a.{core::String::+}(b){(core::String) → core::String};
}
static method main() → dynamic {
  self::expectEquals(self::test1(<core::int>[0]), 0);
  self::expectThrows(() → void => self::test1(<dynamic>[]));
  self::expectThrows(() → void => self::test1(<core::int>[0, 1, 2]));
  self::expectEquals(self::test2(<core::String>["one", "two", "three", "four"]), "onefour");
  self::expectThrows(() → void => self::test2(<core::String>["one"]));
  self::expectThrows(() → void => self::test2("one"));
  self::expectThrows(() → void => self::test2(null));
}
static method expectEquals(dynamic x, dynamic y) → dynamic {
  if(!(x =={core::Object::==}{(core::Object) → core::bool} y)) {
    throw "Expected ${x} to be equal to ${y}.";
  }
}
static method expectThrows(() → void f) → dynamic {
  core::bool hasThrown = true;
  try {
    f(){() → void};
    hasThrown = false;
  }
  on core::Object catch(final core::Object e) {
  }
  if(!hasThrown) {
    throw "Expected function to throw.";
  }
}

constants  {
  #C1 = 1
  #C2 = 2
}