| library; |
| // |
| // Problems in library: |
| // |
| // pkg/front_end/testcases/regress/issue_37681.dart:6:7: Error: Functions marked 'async' must have a return type assignable to 'Future'. |
| // int f_async() async { return 42; } |
| // ^^^^^^^ |
| // |
| // pkg/front_end/testcases/regress/issue_37681.dart:9:7: Error: Functions marked 'async*' must have a return type assignable to 'Stream'. |
| // int f_async_star() async* { yield 42; } |
| // ^^^^^^^^^^^^ |
| // |
| // pkg/front_end/testcases/regress/issue_37681.dart:14:7: Error: Functions marked 'sync*' must have a return type assignable to 'Iterable'. |
| // int f_sync_star() sync* { yield 42; } |
| // ^^^^^^^^^^^ |
| // |
| import self as self; |
| import "dart:async" as asy; |
| import "dart:core" as core; |
| import "dart:_internal" as _in; |
| |
| static method main() → dynamic /* futureValueType= dynamic */ /* originally async */ { |
| final asy::_Future<dynamic>* :async_future = new asy::_Future::•<dynamic>(); |
| core::bool* :is_sync = false; |
| dynamic :return_value; |
| (dynamic) →* dynamic :async_op_then; |
| (core::Object*, core::StackTrace*) →* dynamic :async_op_error; |
| core::int* :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_or_exception, dynamic :stack_trace) → dynamic yielding |
| try { |
| #L1: |
| { |
| function f_async() → core::int* /* futureValueType= core::int* */ /* originally async */ { |
| final asy::_Future<dynamic>* :async_future = new asy::_Future::•<dynamic>(); |
| core::bool* :is_sync = false; |
| dynamic :return_value; |
| (dynamic) →* dynamic :async_op_then; |
| (core::Object*, core::StackTrace*) →* dynamic :async_op_error; |
| core::int* :await_jump_var = 0; |
| dynamic :await_ctx_var; |
| function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding |
| try { |
| #L2: |
| { |
| :return_value = 42; |
| break #L2; |
| } |
| asy::_completeWithNoFutureOnAsyncReturn(:async_future, :return_value, :is_sync); |
| return; |
| } |
| on dynamic catch(dynamic exception, core::StackTrace* stack_trace) { |
| asy::_completeOnAsyncError(:async_future, exception, stack_trace, :is_sync); |
| } |
| :async_op_then = asy::_asyncThenWrapperHelper(:async_op); |
| :async_op_error = asy::_asyncErrorWrapperHelper(:async_op); |
| :async_op(null, null){() →* dynamic}; |
| :is_sync = true; |
| return :async_future; |
| } |
| [yield] let dynamic #t1 = asy::_awaitHelper(f_async(){() →* core::int*}, :async_op_then, :async_op_error) in null; |
| core::print(_in::unsafeCast<core::int*>(:result_or_exception)); |
| function f_async_star() → core::int* /* originally async* */ { |
| asy::_AsyncStarStreamController<dynamic>* :controller; |
| dynamic :controller_stream; |
| (dynamic) →* dynamic :async_op_then; |
| (core::Object*, core::StackTrace*) →* dynamic :async_op_error; |
| core::int* :await_jump_var = 0; |
| dynamic :await_ctx_var; |
| dynamic :saved_try_context_var0; |
| dynamic :saved_try_context_var1; |
| function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding |
| try |
| try { |
| #L3: |
| { |
| if(:controller.{asy::_AsyncStarStreamController::add}(42){(dynamic) → core::bool}) |
| return null; |
| else |
| [yield] null; |
| } |
| return; |
| } |
| on dynamic catch(dynamic exception, core::StackTrace* stack_trace) { |
| :controller.{asy::_AsyncStarStreamController::addError}(exception, stack_trace){(core::Object, core::StackTrace) → void}; |
| } |
| finally { |
| :controller.{asy::_AsyncStarStreamController::close}(){() → dynamic}; |
| } |
| :async_op_then = asy::_asyncThenWrapperHelper(:async_op); |
| :async_op_error = asy::_asyncErrorWrapperHelper(:async_op); |
| :controller = new asy::_AsyncStarStreamController::•<dynamic>(:async_op); |
| :controller_stream = :controller.{asy::_AsyncStarStreamController::stream}{asy::Stream<dynamic>}; |
| return :controller_stream; |
| } |
| { |
| asy::Stream<dynamic>* :stream = (f_async_star(){() →* core::int*} as dynamic) as{TypeError,ForDynamic} asy::Stream<dynamic>*; |
| asy::_StreamIterator<dynamic>* :for-iterator = new asy::_StreamIterator::•<dynamic>(:stream); |
| try |
| #L4: |
| while (true) { |
| dynamic #t2 = asy::_asyncStarMoveNextHelper(:stream); |
| [yield] let dynamic #t3 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(){() → asy::Future<core::bool>}, :async_op_then, :async_op_error) in null; |
| if(_in::unsafeCast<core::bool>(:result_or_exception)) { |
| dynamic x = :for-iterator.{asy::_StreamIterator::current}{dynamic}; |
| { |
| core::print(x); |
| } |
| } |
| else |
| break #L4; |
| } |
| finally |
| if(!(:for-iterator.{asy::_StreamIterator::_subscription}{asy::StreamSubscription<dynamic>?} == null)) { |
| [yield] let dynamic #t4 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(){() → asy::Future<dynamic>}, :async_op_then, :async_op_error) in null; |
| :result_or_exception; |
| } |
| } |
| function f_sync_star() → core::int* /* originally sync* */ { |
| function :sync_op_gen() → (core::_SyncIterator<dynamic>*, dynamic, dynamic) →* core::bool* { |
| core::int* :await_jump_var = 0; |
| dynamic :await_ctx_var; |
| function :sync_op(core::_SyncIterator<dynamic>* :iterator, dynamic :exception, dynamic :stack_trace) → core::bool* yielding { |
| { |
| { |
| :iterator.{core::_SyncIterator::_current} = 42; |
| [yield] true; |
| } |
| } |
| return false; |
| } |
| return :sync_op; |
| } |
| return new core::_SyncIterable::•<dynamic>(:sync_op_gen); |
| } |
| { |
| core::Iterator<dynamic>* :sync-for-iterator = ((f_sync_star(){() →* core::int*} as dynamic) as{TypeError,ForDynamic} core::Iterable<dynamic>*).{core::Iterable::iterator}{core::Iterator<dynamic>*}; |
| for (; :sync-for-iterator.{core::Iterator::moveNext}(){() → core::bool}; ) { |
| dynamic x = :sync-for-iterator.{core::Iterator::current}{dynamic}; |
| { |
| core::print(x); |
| } |
| } |
| } |
| } |
| asy::_completeWithNoFutureOnAsyncReturn(:async_future, :return_value, :is_sync); |
| return; |
| } |
| on dynamic catch(dynamic exception, core::StackTrace* stack_trace) { |
| asy::_completeOnAsyncError(:async_future, exception, stack_trace, :is_sync); |
| } |
| :async_op_then = asy::_asyncThenWrapperHelper(:async_op); |
| :async_op_error = asy::_asyncErrorWrapperHelper(:async_op); |
| :async_op(null, null){() →* dynamic}; |
| :is_sync = true; |
| return :async_future; |
| } |