library;
//
// Problems in library:
//
// pkg/front_end/testcases/patterns/issue51604.dart:9:14: Error: The variable 'i' is available in some, but not all cases that share this body.
//       return i; // Error.
//              ^
//
// pkg/front_end/testcases/patterns/issue51604.dart:12:14: Error: The variable 's' is available in some, but not all cases that share this body.
//       return s; // Error.
//              ^
//
// pkg/front_end/testcases/patterns/issue51604.dart:15:14: Error: The variable 'd' is available in some, but not all cases that share this body.
//       return d; // Error.
//              ^
//
// pkg/front_end/testcases/patterns/issue51604.dart:18:14: Error: The variable 'b' is available in some, but not all cases that share this body.
//       return b; // Error.
//              ^
//
// pkg/front_end/testcases/patterns/issue51604.dart:30:14: Error: The variable 'i2' is not available because there is a label or 'default' case.
//       return i2; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:33:14: Error: The variable 's2' is not available because there is a label or 'default' case.
//       return s2; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:30:14: Error: Non-nullable variable 'i2' must be assigned before it can be used.
//       return i2; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:33:14: Error: Non-nullable variable 's2' must be assigned before it can be used.
//       return s2; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:44:14: Error: The variable 'i3' is not available because there is a label or 'default' case.
//       return i3; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:48:14: Error: The variable 's3' is not available because there is a label or 'default' case.
//       return s3; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:59:14: Error: The variable 'i4' is not available because there is a label or 'default' case.
//       return i4; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:63:14: Error: Variable pattern 's4' doesn't have the same type or finality in all cases.
//       return s4; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:63:14: Error: The variable 's4' is not available because there is a label or 'default' case.
//       return s4; // Error.
//              ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:59:14: Error: Variable pattern 'i4' doesn't have the same type or finality in all cases.
//       return i4; // Error.
//              ^
//
// pkg/front_end/testcases/patterns/issue51604.dart:87:16: Error: The variable 'i6' is not available because there is a label or 'default' case.
//         return i6; // Error.
//                ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:93:18: Error: The variable 's6' is not available because there is a label or 'default' case.
//           return s6; // Error.
//                  ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:87:16: Error: Non-nullable variable 'i6' must be assigned before it can be used.
//         return i6; // Error.
//                ^^
//
// pkg/front_end/testcases/patterns/issue51604.dart:93:18: Error: Non-nullable variable 's6' must be assigned before it can be used.
//           return s6; // Error.
//                  ^^
//
import self as self;
import "dart:core" as core;

static method test1(dynamic x) → dynamic {
  #L1:
  {
    final synthesized dynamic #0#0 = x;
    dynamic #t1;
    dynamic #t2;
    dynamic #t3;
    dynamic #t4;
    {
      hoisted core::int i;
      if(#C1 =={core::num::==}{(core::Object) → core::bool} #0#0 || #0#0 is core::int && (let final dynamic #t5 = i = #0#0{core::int} in true) && (let final dynamic #t6 = #t1 = i in true)) {
        invalid-type i = #t1{invalid-type};
        {
          return i;
        }
      }
    }
    {
      hoisted core::String s;
      if(#0#0 is core::String && (let final dynamic #t7 = s = #0#0{core::String} in true) && (let final dynamic #t8 = #t2 = s in true) || #C2 =={core::String::==}{(core::Object) → core::bool} #0#0) {
        core::String s = #t2{core::String};
        {
          return s;
        }
      }
    }
    {
      hoisted core::double d;
      if(#0#0 is core::double && (let final dynamic #t9 = d = #0#0{core::double} in true) && (let final dynamic #t10 = #t3 = d in true) || #0#0{dynamic}.<(#C3) as core::bool) {
        core::double d = #t3{core::double};
        {
          return d;
        }
      }
    }
    {
      hoisted core::bool b;
      if(#0#0 =={core::Object::==}{(core::Object) → core::bool} #C4 || #0#0 is core::bool && (let final dynamic #t11 = b = #0#0{core::bool} in true) && (let final dynamic #t12 = #t4 = b in true)) {
        invalid-type b = #t4{invalid-type};
        {
          return b;
        }
      }
    }
    {
      {
        {
          return null;
        }
      }
    }
  }
}
static method test2(dynamic x) → dynamic {
  #L2:
  {
    core::int #t13 = 1.{core::int::unary-}(){() → core::int};
    hoisted core::int i2;
    final synthesized dynamic #0#0 = x;
    #L3:
    {
      {
        if(#0#0{dynamic}.<=(#C1) as core::bool) {
          {
            #t13 = 0;
            break #L3;
          }
        }
      }
      {
        if(#0#0 is core::int && (let final dynamic #t14 = i2 = #0#0{core::int} in true)) {
          #t13 = 0;
          break #L3;
        }
      }
      {
        hoisted core::String s2;
        if(#0#0 is core::String && (let final dynamic #t15 = s2 = #0#0{core::String} in true) || true) {
          {
            return invalid-expression "pkg/front_end/testcases/patterns/issue51604.dart:33:14: Error: Non-nullable variable 's2' must be assigned before it can be used.
      return s2; // Error.
             ^^" in s2;
          }
        }
      }
    }
    switch(#t13) /* dynamic */ {
      #L4:
      case #C1:
        {
          {
            return invalid-expression "pkg/front_end/testcases/patterns/issue51604.dart:30:14: Error: Non-nullable variable 'i2' must be assigned before it can be used.
      return i2; // Error.
             ^^" in i2;
          }
        }
    }
  }
}
static method test3(dynamic x) → dynamic {
  #L5:
  {
    core::int #t16 = 1.{core::int::unary-}(){() → core::int};
    hoisted core::int i3;
    hoisted core::int i3#1;
    final synthesized dynamic #0#0 = x;
    late final synthesized core::bool #0#6 = #0#0{core::List<dynamic>}.{core::List::length}{core::int} =={core::num::==}{(core::Object) → core::bool} #C5;
    late final synthesized dynamic #0#8 = (#0#0 as{Unchecked} core::List<dynamic>).{core::List::[]}(0){(core::int) → dynamic};
    dynamic #t17;
    dynamic #t18;
    #L6:
    {
      {
        if(#0#0{dynamic}.<=(#C1) as core::bool) {
          {
            #t16 = 0;
            break #L6;
          }
        }
      }
      {
        if(#0#0 is core::int && (let final dynamic #t19 = i3 = #0#0{core::int} in true) && (let final dynamic #t20 = #t17 = i3 in true) || #0#0 is core::List<dynamic> && #0#6 && (#0#8 is core::int && (let final dynamic #t21 = i3#1 = #0#8{core::int} in true)) && (let final dynamic #t22 = #t17 = i3#1 in true)) {
          #t16 = 0;
          break #L6;
        }
      }
      {
        lowered hoisted core::String s3#case#0;
        lowered hoisted core::String s3#case#1;
        if(#0#0 is core::String && (let final dynamic #t23 = s3#case#0 = #0#0{core::String} in true) && (let final dynamic #t24 = #t18 = s3#case#0 in true) || #0#0 is core::List<dynamic> && #0#6 && (#0#8 is core::String && (let final dynamic #t25 = s3#case#1 = #0#8{core::String} in true)) && (let final dynamic #t26 = #t18 = s3#case#1 in true) || true) {
          core::String s3 = #t18{core::String};
          {
            return s3;
          }
        }
      }
    }
    switch(#t16) /* dynamic */ {
      #L7:
      case #C1:
        {
          core::int i3 = #t17{core::int};
          {
            return i3;
          }
        }
    }
  }
}
static method test4(dynamic x) → dynamic {
  #L8:
  {
    core::int #t27 = 1.{core::int::unary-}(){() → core::int};
    hoisted core::int i4;
    hoisted core::double i4#1;
    final synthesized dynamic #0#0 = x;
    late final synthesized core::bool #0#6 = #0#0{core::List<dynamic>}.{core::List::length}{core::int} =={core::num::==}{(core::Object) → core::bool} #C5;
    late final synthesized dynamic #0#8 = (#0#0 as{Unchecked} core::List<dynamic>).{core::List::[]}(0){(core::int) → dynamic};
    dynamic #t28;
    dynamic #t29;
    #L9:
    {
      {
        if(#0#0{dynamic}.<=(#C1) as core::bool) {
          {
            #t27 = 0;
            break #L9;
          }
        }
      }
      {
        if(#0#0 is core::int && (let final dynamic #t30 = i4 = #0#0{core::int} in true) && (let final dynamic #t31 = #t28 = i4 in true) || #0#0 is core::List<dynamic> && #0#6 && (#0#8 is core::double && (let final dynamic #t32 = i4#1 = #0#8{core::double} in true)) && (let final dynamic #t33 = #t28 = i4#1 in true)) {
          #t27 = 0;
          break #L9;
        }
      }
      {
        lowered hoisted core::String s4#case#0;
        lowered final hoisted core::String s4#case#1;
        if(#0#0 is core::String && (let final dynamic #t34 = s4#case#0 = #0#0{core::String} in true) && (let final dynamic #t35 = #t29 = s4#case#0 in true) || #0#0 is core::List<dynamic> && #0#6 && (#0#8 is core::String && (let final dynamic #t36 = s4#case#1 = #0#8{core::String} in true)) && (let final dynamic #t37 = #t29 = s4#case#1 in true) || true) {
          core::String s4 = #t29{core::String};
          {
            return s4;
          }
        }
      }
    }
    switch(#t27) /* dynamic */ {
      #L10:
      case #C1:
        {
          core::int i4 = invalid-expression "pkg/front_end/testcases/patterns/issue51604.dart:59:14: Error: Variable pattern 'i4' doesn't have the same type or finality in all cases.
      return i4; // Error.
             ^";
          {
            return i4;
          }
        }
    }
  }
}
static method test5(dynamic x) → dynamic {
  #L11:
  {
    core::int #t38 = 1.{core::int::unary-}(){() → core::int};
    hoisted core::int i5;
    final synthesized dynamic #0#0 = x;
    #L12:
    {
      {
        if(#0#0{dynamic}.<=(#C1) as core::bool) {
          {
            #t38 = 0;
            break #L12;
          }
        }
      }
      {
        if(#0#0 is core::int && (let final dynamic #t39 = i5 = #0#0{core::int} in true) && i5 =={core::num::==}{(core::Object) → core::bool} 1) {
          #t38 = 0;
          break #L12;
        }
      }
      {
        hoisted core::String s5;
        if(#0#0 is core::String && (let final dynamic #t40 = s5 = #0#0{core::String} in true) && s5 =={core::String::==}{(core::Object) → core::bool} "foo" || true) {
          {
            return null;
          }
        }
      }
    }
    switch(#t38) /* dynamic */ {
      #L13:
      case #C1:
        {
          {
            return null;
          }
        }
    }
  }
}
static method test6(dynamic x, core::bool b) → dynamic {
  #L14:
  {
    core::int #t41 = 1.{core::int::unary-}(){() → core::int};
    hoisted core::int i6;
    final synthesized dynamic #0#0 = x;
    #L15:
    {
      {
        if(#0#0{dynamic}.<=(#C1) as core::bool) {
          {
            #t41 = 0;
            break #L15;
          }
        }
      }
      {
        if(#0#0 is core::int && (let final dynamic #t42 = i6 = #0#0{core::int} in true)) {
          #t41 = 0;
          break #L15;
        }
      }
      {
        hoisted core::String s6;
        if(#0#0 is core::String && (let final dynamic #t43 = s6 = #0#0{core::String} in true) || true) {
          {
            if(b) {
              if(b) {
                return invalid-expression "pkg/front_end/testcases/patterns/issue51604.dart:93:18: Error: Non-nullable variable 's6' must be assigned before it can be used.
          return s6; // Error.
                 ^^" in s6;
              }
            }
          }
        }
      }
    }
    switch(#t41) /* dynamic */ {
      #L16:
      case #C1:
        {
          {
            if(b) {
              return invalid-expression "pkg/front_end/testcases/patterns/issue51604.dart:87:16: Error: Non-nullable variable 'i6' must be assigned before it can be used.
        return i6; // Error.
               ^^" in i6;
            }
            break #L14;
          }
        }
    }
  }
}
static method test7(dynamic x) → dynamic {
  #L17:
  {
    core::int #t44 = 1.{core::int::unary-}(){() → core::int};
    hoisted core::int i7;
    final synthesized dynamic #0#0 = x;
    #L18:
    {
      {
        if(#0#0{dynamic}.<=(#C1) as core::bool) {
          {
            #t44 = 0;
            break #L18;
          }
        }
      }
      {
        if(#0#0 is core::int && (let final dynamic #t45 = i7 = #0#0{core::int} in true) && i7 =={core::num::==}{(core::Object) → core::bool} 1) {
          #t44 = 0;
          break #L18;
        }
      }
      {
        hoisted core::String s7;
        if(#0#0 is core::String && (let final dynamic #t46 = s7 = #0#0{core::String} in true) && s7 =={core::String::==}{(core::Object) → core::bool} "foo" || true) {
          {
            core::String s7 = "foo";
            return s7;
          }
        }
      }
    }
    switch(#t44) /* dynamic */ {
      #L19:
      case #C1:
        {
          {
            core::int i7 = 1;
            return i7;
          }
        }
    }
  }
}

constants  {
  #C1 = 0
  #C2 = "foo"
  #C3 = 3.14
  #C4 = false
  #C5 = 1
}