library test;
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

class Foo extends core::Object {
  field core::int bar = 42;
  synthetic constructor •() → void
    : super core::Object::•()
    ;
}
class Bar<T extends asy::Stream<core::String> = asy::Stream<core::String>> extends core::Object {
  synthetic constructor •() → void
    : super core::Object::•()
    ;
  method foo(generic-covariant-impl self::Bar::T t) → dynamic /* originally async */ {
    final asy::Completer<dynamic> :async_completer = asy::Completer::sync<dynamic>();
    asy::FutureOr<dynamic> :return_value;
    dynamic :async_stack_trace;
    dynamic :async_op_then;
    dynamic :async_op_error;
    dynamic :await_jump_var = 0;
    dynamic :await_ctx_var;
    dynamic :saved_try_context_var0;
    dynamic :saved_try_context_var1;
    dynamic :exception0;
    dynamic :stack_trace0;
    function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
      try {
        #L1:
        {
          {
            dynamic :stream = t;
            asy::_asyncStarListenHelper(:stream, :async_op);
            asy::_StreamIterator<core::String> :for-iterator = new asy::_StreamIterator::•<core::String>(:stream);
            const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
            try
              #L2:
              while (true) {
                dynamic #t1 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
                [yield] let dynamic #t2 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
                if(:result) {
                  core::String i = :for-iterator.{asy::_StreamIterator::current};
                  {
                    core::int x = let<BottomType> _ = null in let final dynamic #t3 = let<BottomType> _ = null in invalid-expression "pkg/front_end/testcases/inference/infer_types_on_loop_indices_for_each_loop_async.dart:17:44: Error: A value of type 'dart.core::String' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
      int x = /*error:INVALID_ASSIGNMENT*/ i;
                                           ^" in let final core::String #t4 = i in null;
                  }
                }
                else
                  break #L2;
              }
            finally
              if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
                [yield] let dynamic #t5 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
                :result;
              }
          }
        }
        asy::_completeOnAsyncReturn(:async_completer, :return_value);
        return;
      }
      on dynamic catch(dynamic :exception, dynamic :stack_trace) {
        :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
      }
    :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
    :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
    :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
    asy::Future::microtask<dynamic>(:async_op);
    return :async_completer.{asy::Completer::future};
  }
}
class Baz<T extends core::Object = dynamic, E extends asy::Stream<self::Baz::T> = asy::Stream<dynamic>, S extends self::Baz::E = asy::Stream<dynamic>> extends core::Object {
  synthetic constructor •() → void
    : super core::Object::•()
    ;
  method foo(generic-covariant-impl self::Baz::S t) → dynamic /* originally async */ {
    final asy::Completer<dynamic> :async_completer = asy::Completer::sync<dynamic>();
    asy::FutureOr<dynamic> :return_value;
    dynamic :async_stack_trace;
    dynamic :async_op_then;
    dynamic :async_op_error;
    dynamic :await_jump_var = 0;
    dynamic :await_ctx_var;
    dynamic :saved_try_context_var0;
    dynamic :saved_try_context_var1;
    dynamic :exception0;
    dynamic :stack_trace0;
    function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
      try {
        #L3:
        {
          {
            dynamic :stream = t;
            asy::_asyncStarListenHelper(:stream, :async_op);
            asy::_StreamIterator<self::Baz::T> :for-iterator = new asy::_StreamIterator::•<self::Baz::T>(:stream);
            const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
            try
              #L4:
              while (true) {
                dynamic #t6 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
                [yield] let dynamic #t7 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
                if(:result) {
                  self::Baz::T i = :for-iterator.{asy::_StreamIterator::current};
                  {
                    core::int x = let<BottomType> _ = null in let final dynamic #t8 = let<BottomType> _ = null in invalid-expression "pkg/front_end/testcases/inference/infer_types_on_loop_indices_for_each_loop_async.dart:25:44: Error: A value of type 'test::Baz::T' can't be assigned to a variable of type 'dart.core::int'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::int'.
      int x = /*error:INVALID_ASSIGNMENT*/ i;
                                           ^" in let final self::Baz::T #t9 = i in null;
                    self::Baz::T y = i;
                  }
                }
                else
                  break #L4;
              }
            finally
              if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
                [yield] let dynamic #t10 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
                :result;
              }
          }
        }
        asy::_completeOnAsyncReturn(:async_completer, :return_value);
        return;
      }
      on dynamic catch(dynamic :exception, dynamic :stack_trace) {
        :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
      }
    :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
    :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
    :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
    asy::Future::microtask<dynamic>(:async_op);
    return :async_completer.{asy::Completer::future};
  }
}
abstract class MyStream<T extends core::Object = dynamic> extends asy::Stream<self::MyStream::T> {
  static factory •<T extends core::Object = dynamic>() → self::MyStream<self::MyStream::•::T>
    return null;
}
static method test() → dynamic /* originally async */ {
  final asy::Completer<dynamic> :async_completer = asy::Completer::sync<dynamic>();
  asy::FutureOr<dynamic> :return_value;
  dynamic :async_stack_trace;
  dynamic :async_op_then;
  dynamic :async_op_error;
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  dynamic :saved_try_context_var0;
  dynamic :saved_try_context_var1;
  dynamic :exception0;
  dynamic :stack_trace0;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L5:
      {
        self::MyStream<self::Foo> myStream = self::MyStream::•<self::Foo>();
        {
          dynamic :stream = myStream;
          asy::_asyncStarListenHelper(:stream, :async_op);
          asy::_StreamIterator<self::Foo> :for-iterator = new asy::_StreamIterator::•<self::Foo>(:stream);
          const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
          try
            #L6:
            while (true) {
              dynamic #t11 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t12 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
              if(:result) {
                self::Foo x = :for-iterator.{asy::_StreamIterator::current};
                {
                  core::String y = let<BottomType> _ = null in let final dynamic #t13 = let<BottomType> _ = null in invalid-expression "pkg/front_end/testcases/inference/infer_types_on_loop_indices_for_each_loop_async.dart:38:45: Error: A value of type 'test::Foo' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the left hand side, or casting the right hand side to 'dart.core::String'.
    String y = /*error:INVALID_ASSIGNMENT*/ x;
                                            ^" in let final self::Foo #t14 = x in null;
                }
              }
              else
                break #L6;
            }
          finally
            if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
              [yield] let dynamic #t15 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
              :result;
            }
        }
        {
          dynamic :stream = myStream;
          asy::_asyncStarListenHelper(:stream, :async_op);
          asy::_StreamIterator<dynamic> :for-iterator = new asy::_StreamIterator::•<dynamic>(:stream);
          const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
          try
            #L7:
            while (true) {
              dynamic #t16 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t17 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
              if(:result) {
                dynamic x = :for-iterator.{asy::_StreamIterator::current};
                {
                  core::String y = x as{TypeError} core::String;
                }
              }
              else
                break #L7;
            }
          finally
            if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
              [yield] let dynamic #t18 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
              :result;
            }
        }
        {
          dynamic :stream = myStream;
          asy::_asyncStarListenHelper(:stream, :async_op);
          asy::_StreamIterator<self::Foo> :for-iterator = new asy::_StreamIterator::•<self::Foo>(:stream);
          const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
          try
            #L8:
            while (true) {
              dynamic #t19 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t20 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
              if(:result) {
                final self::Foo #t21 = :for-iterator.{asy::_StreamIterator::current};
                {
                  core::String x = let<BottomType> _ = null in let final dynamic #t22 = let<BottomType> _ = null in invalid-expression "pkg/front_end/testcases/inference/infer_types_on_loop_indices_for_each_loop_async.dart:45:21: Error: A value of type 'test::Foo' can't be assigned to a variable of type 'dart.core::String'.
Try changing the type of the variable.
  await for (String x in /*error:FOR_IN_OF_INVALID_ELEMENT_TYPE*/ myStream) {
                    ^" in let final self::Foo #t23 = #t21 in null;
                  core::String y = x;
                }
              }
              else
                break #L8;
            }
          finally
            if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
              [yield] let dynamic #t24 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
              :result;
            }
        }
        dynamic z;
        {
          dynamic :stream = myStream;
          asy::_asyncStarListenHelper(:stream, :async_op);
          asy::_StreamIterator<self::Foo> :for-iterator = new asy::_StreamIterator::•<self::Foo>(:stream);
          const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
          try
            #L9:
            while (true) {
              dynamic #t25 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t26 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
              if(:result) {
                final self::Foo #t27 = :for-iterator.{asy::_StreamIterator::current};
                {
                  z = #t27;
                  core::String y = z as{TypeError} core::String;
                }
              }
              else
                break #L9;
            }
          finally
            if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
              [yield] let dynamic #t28 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
              :result;
            }
        }
        asy::Stream<dynamic> stream = myStream;
        {
          dynamic :stream = stream;
          asy::_asyncStarListenHelper(:stream, :async_op);
          asy::_StreamIterator<dynamic> :for-iterator = new asy::_StreamIterator::•<dynamic>(:stream);
          const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
          try
            #L10:
            while (true) {
              dynamic #t29 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t30 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
              if(:result) {
                final dynamic #t31 = :for-iterator.{asy::_StreamIterator::current};
                {
                  self::Foo x = #t31 as{TypeError} self::Foo;
                  self::Foo y = x;
                }
              }
              else
                break #L10;
            }
          finally
            if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
              [yield] let dynamic #t32 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
              :result;
            }
        }
        dynamic stream2 = myStream;
        {
          dynamic :stream = stream2 as{TypeError} asy::Stream<dynamic>;
          asy::_asyncStarListenHelper(:stream, :async_op);
          asy::_StreamIterator<dynamic> :for-iterator = new asy::_StreamIterator::•<dynamic>(:stream);
          const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
          try
            #L11:
            while (true) {
              dynamic #t33 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t34 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
              if(:result) {
                final dynamic #t35 = :for-iterator.{asy::_StreamIterator::current};
                {
                  self::Foo x = #t35 as{TypeError} self::Foo;
                  self::Foo y = x;
                }
              }
              else
                break #L11;
            }
          finally
            if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
              [yield] let dynamic #t36 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
              :result;
            }
        }
        core::Map<core::String, self::Foo> map = <core::String, self::Foo>{};
        {
          dynamic :stream = let<BottomType> _ = null in let final dynamic #t37 = let<BottomType> _ = null in invalid-expression "pkg/front_end/testcases/inference/infer_types_on_loop_indices_for_each_loop_async.dart:66:74: Error: The type 'dart.core::Map<dart.core::String, test::Foo>' used in the 'for' loop must implement 'dart.async::Stream<dynamic>'.
  await for (var /*@type=dynamic*/ x in /*error:FOR_IN_OF_INVALID_TYPE*/ map) {
                                                                         ^" in let final core::Map<core::String, self::Foo> #t38 = map in null;
          asy::_asyncStarListenHelper(:stream, :async_op);
          asy::_StreamIterator<dynamic> :for-iterator = new asy::_StreamIterator::•<dynamic>(:stream);
          const core::bool :product-mode = const core::bool::fromEnvironment("dart.vm.product");
          try
            #L12:
            while (true) {
              dynamic #t39 = :product-mode ?{dynamic} null : asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t40 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(), :async_op_then, :async_op_error, :async_op) in null;
              if(:result) {
                dynamic x = :for-iterator.{asy::_StreamIterator::current};
                {
                  core::String y = x as{TypeError} core::String;
                }
              }
              else
                break #L12;
            }
          finally
            if(!:for-iterator.{asy::_StreamIterator::_subscription}.{core::Object::==}(null)) {
              [yield] let dynamic #t41 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(), :async_op_then, :async_op_error, :async_op) in null;
              :result;
            }
        }
      }
      asy::_completeOnAsyncReturn(:async_completer, :return_value);
      return;
    }
    on dynamic catch(dynamic :exception, dynamic :stack_trace) {
      :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  asy::Future::microtask<dynamic>(:async_op);
  return :async_completer.{asy::Completer::future};
}
static method main() → dynamic {}