library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;
import "package:expect/expect.dart" as exp;

import "package:expect/expect.dart";

static field core::int global = 0;
static method fact4() → dynamic {
  core::int f = 1;
  for (core::int n in <core::int>[1, 2, 3, 4]) {
    f = f.{core::num::*}(n){(core::num) → core::int};
  }
  return f;
}
static method fact5() → dynamic {
  core::int f = 1;
  core::int n;
  for (final core::int #t1 in <core::int>[1, 2, 3, 4, 5]) {
    n = #t1;
    f = f.{core::num::*}(n){(core::num) → core::int};
  }
  return f;
}
static method fact6() → dynamic {
  core::int f = 1;
  for (final core::int #t2 in <core::int>[1, 2, 3, 4, 5, 6]) {
    self::global = #t2;
    f = f.{core::num::*}(self::global){(core::num) → core::int};
  }
  return f;
}
static method main() → dynamic {
  exp::Expect::isTrue(self::fact4() =={core::Object::==}{(core::Object) → core::bool} 24);
  exp::Expect::isTrue(self::fact5() =={core::Object::==}{(core::Object) → core::bool} 120);
  exp::Expect::isTrue(self::fact6() =={core::Object::==}{(core::Object) → core::bool} 720);
}