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

import "package:expect/expect.dart";

static const field core::int var1 = #C1;
static const field core::int var2 = #C2;
static const field core::int var3 = #C3;
static const field core::int var4 = #C4;
static method fn() → core::int {
  core::int x = 0;
  do {
    x = x.{core::num::+}(1);
  }
  while (x.{core::num::<}(2))
  return x;
}
static method fn2(core::int a) → core::int {
  core::int x = 0;
  core::int b = 0;
  #L1:
  do {
    if(x.{core::num::>}(5))
      break #L1;
    x = x.{core::num::+}(a);
    b = b.{core::num::+}(1);
  }
  while (b.{core::num::<}(2))
  return x;
}
static method fn3() → core::int {
  core::int x = 0;
  core::int b = 0;
  do
    #L2:
    {
      x = x.{core::num::+}(1);
      if(x.{core::num::%}(2).{core::num::==}(1))
        break #L2;
      b = b.{core::num::+}(x);
    }
  while (x.{core::num::<}(5))
  return b;
}
static method main() → void {
  exp::Expect::equals(#C1, 2);
  exp::Expect::equals(#C2, 4);
  exp::Expect::equals(#C3, 10);
  exp::Expect::equals(#C4, 6);
}

constants  {
  #C1 = 2
  #C2 = 4
  #C3 = 10
  #C4 = 6
}