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

static method test1(dynamic x) → dynamic {
  core::int a;
  {
    final synthesized dynamic #0#0 = x as{TypeError,ForDynamic} core::List<core::int>;
    if(!(#0#0 is core::List<dynamic> && #0#0{core::List<dynamic>}.{core::List::length}{core::int} =={core::num::==}{(core::Object) → core::bool} #C1 && (let final dynamic #t1 = a = #0#0{core::List<dynamic>}.{core::List::[]}(0){(core::int) → dynamic} as core::int in true)))
      throw{for-error-handling} new core::StateError::•("Pattern matching error");
  }
  return a;
}
static method test2(dynamic x) → dynamic {
  core::int a;
  core::int b;
  core::int c;
  {
    final synthesized dynamic #1#0 = ( block {
      final synthesized dynamic #0#0 = x as{TypeError,ForDynamic} core::List<core::int>;
      synthesized dynamic #0#6;
      synthesized core::bool #0#6#isSet = false;
      if(!(#0#0 is core::List<dynamic> && #0#0{core::List<dynamic>}.{core::List::length}{core::int}.{core::num::>=}(#C1){(core::num) → core::bool} && ((let final dynamic #t2 = a = (#0#6#isSet ?{dynamic} #0#6 : let final dynamic #t3 = #0#6#isSet = true in #0#6 = #0#0{core::List<dynamic>}.{core::List::[]}(0){(core::int) → dynamic}) as core::int in true) && (let final dynamic #t4 = b = (#0#6#isSet ?{dynamic} #0#6 : let final dynamic #t5 = #0#6#isSet = true in #0#6 = #0#0{core::List<dynamic>}.{core::List::[]}(0){(core::int) → dynamic}) as{Unchecked} core::int in true))))
        throw{for-error-handling} new core::StateError::•("Pattern matching error");
    } =>#0#0) as{TypeError,ForDynamic} core::List<core::int>;
    if(!(#1#0 is core::List<dynamic> && #1#0{core::List<dynamic>}.{core::List::length}{core::int}.{core::num::>=}(#C1){(core::num) → core::bool} && (let final dynamic #t6 = c = #1#0{core::List<dynamic>}.{core::List::[]}(0){(core::int) → dynamic} as core::int in true)))
      throw{for-error-handling} new core::StateError::•("Pattern matching error");
  }
  return a.{core::num::+}(b){(core::num) → core::int}.{core::num::+}(c){(core::num) → core::int};
}
static method main() → dynamic {
  self::expectEquals(self::test1(<core::int>[1]), 1);
  self::expectThrows(() → void => self::test1(<dynamic>[]));
  self::expectThrows(() → void => self::test1(<core::int>[1, 2, 3]));
  self::expectThrows(() → void => self::test1("foo"));
  self::expectThrows(() → void => self::test1(null));
  self::expectEquals(self::test2(<core::int>[1]), 3);
  self::expectThrows(() → void => self::test2(1));
}
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 the function to throw.";
  }
}

constants  {
  #C1 = 1
}