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// RUN: %target-swift-emit-silgen %s -module-name foreach_async -swift-version 5 -disable-availability-checking | %FileCheck %s
// REQUIRES: concurrency
//////////////////
// Declarations //
//////////////////
class C {}
@_silgen_name("loopBodyEnd")
func loopBodyEnd() -> ()
@_silgen_name("condition")
func condition() -> Bool
@_silgen_name("loopContinueEnd")
func loopContinueEnd() -> ()
@_silgen_name("loopBreakEnd")
func loopBreakEnd() -> ()
@_silgen_name("funcEnd")
func funcEnd() -> ()
struct TrivialStruct {
var value: Int32
}
struct NonTrivialStruct {
var value: C
}
struct GenericStruct<T> {
var value: T
var value2: C
}
protocol P {}
protocol ClassP : AnyObject {}
protocol GenericCollection : Collection {
}
struct AsyncLazySequence<S: Sequence>: AsyncSequence {
typealias Element = S.Element
typealias AsyncIterator = Iterator
struct Iterator: AsyncIteratorProtocol {
typealias Element = S.Element
var iterator: S.Iterator?
mutating func next() async -> S.Element? {
return iterator?.next()
}
}
var sequence: S
func makeAsyncIterator() -> Iterator {
return Iterator(iterator: sequence.makeIterator())
}
}
///////////
// Tests //
///////////
//===----------------------------------------------------------------------===//
// Trivial Struct
//===----------------------------------------------------------------------===//
// CHECK-LABEL: sil hidden [ossa] @$s13foreach_async13trivialStructyyAA17AsyncLazySequenceVySaySiGGYaF : $@convention(thin) @async (@guaranteed AsyncLazySequence<Array<Int>>) -> () {
// CHECK: bb0([[SOURCE:%.*]] : @guaranteed $AsyncLazySequence<Array<Int>>):
// CHECK: [[ITERATOR_BOX:%.*]] = alloc_box ${ var AsyncLazySequence<Array<Int>>.Iterator }, var, name "$x$generator"
// CHECK: [[ITERATOR_LIFETIME:%.*]] = begin_borrow [var_decl] [[ITERATOR_BOX]]
// CHECK: [[PROJECT_ITERATOR_BOX:%.*]] = project_box [[ITERATOR_LIFETIME]]
// CHECK: br [[LOOP_DEST:bb[0-9]+]]
// CHECK: [[LOOP_DEST]]:
// CHECK: [[NEXT_RESULT:%.*]] = alloc_stack $Optional<Int>
// CHECK: [[ACTOR:%.*]] = enum $Optional<any Actor>, #Optional.none!enumelt
// CHECK: [[MUTATION:%.*]] = begin_access
// CHECK: [[WITNESS_METHOD:%.*]] = function_ref @$sScIsE4next9isolation7ElementQzSgScA_pSgYi_tYa7FailureQzYKF : $@convention(method) @async <τ_0_0 where τ_0_0 : AsyncIteratorProtocol> (@sil_isolated @guaranteed Optional<any Actor>, @inout τ_0_0) -> (@out Optional<τ_0_0.Element>, @error_indirect τ_0_0.Failure)
// CHECK: [[ERROR_SLOT:%[0-9]+]] = alloc_stack $Never
// CHECK: try_apply [[WITNESS_METHOD]]<AsyncLazySequence<[Int]>.Iterator>([[NEXT_RESULT]], [[ERROR_SLOT]], [[ACTOR]], [[MUTATION]]) : $@convention(method) @async <τ_0_0 where τ_0_0 : AsyncIteratorProtocol> (@sil_isolated @guaranteed Optional<any Actor>, @inout τ_0_0) -> (@out Optional<τ_0_0.Element>, @error_indirect τ_0_0.Failure), normal [[NORMAL_BB:bb[0-2]+]], error [[ERROR_BB:bb[0-9]+]]
// CHECK: [[NORMAL_BB]](
// CHECK: end_access [[MUTATION]]
// CHECK: switch_enum [[IND_VAR:%.*]] : $Optional<Int>, case #Optional.some!enumelt: [[SOME_BB:bb[0-9]+]], case #Optional.none!enumelt: [[NONE_BB:bb[0-9]+]]
// CHECK: [[SOME_BB]]([[VAR:%.*]] : $Int):
// CHECK: loopBodyEnd
// CHECK: br [[LOOP_DEST]]
// CHECK: [[NONE_BB]]:
// CHECK: funcEnd
// CHECK: return
// CHECK: } // end sil function '$s13foreach_async13trivialStructyyAA17AsyncLazySequenceVySaySiGGYaF'
func trivialStruct(_ xx: AsyncLazySequence<[Int]>) async {
for await x in xx {
loopBodyEnd()
}
funcEnd()
}
// CHECK-LABEL: sil hidden [ossa] @$s13foreach_async21trivialStructContinueyyAA17AsyncLazySequenceVySaySiGGYaF : $@convention(thin) @async (@guaranteed AsyncLazySequence<Array<Int>>) -> () {
// CHECK: bb0([[SOURCE:%.*]] : @guaranteed $AsyncLazySequence<Array<Int>>):
// CHECK: [[ITERATOR_BOX:%.*]] = alloc_box ${ var AsyncLazySequence<Array<Int>>.Iterator }, var, name "$x$generator"
// CHECK: [[PROJECT_ITERATOR_LIFETIME:%.*]] = begin_borrow [var_decl] [[ITERATOR_BOX]]
// CHECK: [[PROJECT_ITERATOR_BOX:%.*]] = project_box [[ITERATOR_LIFETIME]]
// CHECK: br [[LOOP_DEST:bb[0-9]+]]
// CHECK: [[LOOP_DEST]]:
// CHECK: [[NEXT_RESULT:%.*]] = alloc_stack $Optional<Int>
// CHECK: [[ACTOR:%.*]] = enum $Optional<any Actor>, #Optional.none!enumelt
// CHECK: [[MUTATION:%.*]] = begin_access
// CHECK: [[WITNESS_METHOD:%.*]] = function_ref @$sScIsE4next9isolation7ElementQzSgScA_pSgYi_tYa7FailureQzYKF : $@convention(method) @async <τ_0_0 where τ_0_0 : AsyncIteratorProtocol> (@sil_isolated @guaranteed Optional<any Actor>, @inout τ_0_0) -> (@out Optional<τ_0_0.Element>, @error_indirect τ_0_0.Failure)
// CHECK: [[ERROR_SLOT:%[0-9]+]] = alloc_stack $Never
// CHECK: try_apply [[WITNESS_METHOD]]<AsyncLazySequence<[Int]>.Iterator>([[NEXT_RESULT]], [[ERROR_SLOT]], [[ACTOR]], [[MUTATION]]) : $@convention(method) @async <τ_0_0 where τ_0_0 : AsyncIteratorProtocol> (@sil_isolated @guaranteed Optional<any Actor>, @inout τ_0_0) -> (@out Optional<τ_0_0.Element>, @error_indirect τ_0_0.Failure), normal [[NORMAL_BB:bb[0-2]+]], error [[ERROR_BB:bb[0-9]+]]
// CHECK: [[NORMAL_BB]](
// CHECK: end_access [[MUTATION]]
// CHECK: switch_enum [[IND_VAR:%.*]] : $Optional<Int>, case #Optional.some!enumelt: [[SOME_BB:bb[0-9]+]], case #Optional.none!enumelt: [[NONE_BB:bb[0-9]+]]
// CHECK: [[SOME_BB]]([[VAR:%.*]] : $Int):
// CHECK: condition
// CHECK: cond_br [[VAR:%.*]], [[COND_TRUE:bb[0-9]+]], [[COND_FALSE:bb[0-9]+]]
// CHECK: [[COND_TRUE]]:
// CHECK: loopContinueEnd
// CHECK: br [[LOOP_DEST]]
// CHECK: [[COND_FALSE]]:
// CHECK: loopBodyEnd
// CHECK: br [[LOOP_DEST]]
// CHECK: [[NONE_BB]]:
// CHECK: funcEnd
// CHECK: return
// CHECK: } // end sil function '$s13foreach_async21trivialStructContinueyyAA17AsyncLazySequenceVySaySiGGYaF'
func trivialStructContinue(_ xx: AsyncLazySequence<[Int]>) async {
for await x in xx {
if (condition()) {
loopContinueEnd()
continue
}
loopBodyEnd()
}
funcEnd()
}
// TODO: Write this test
func trivialStructBreak(_ xx: AsyncLazySequence<[Int]>) async {
for await x in xx {
if (condition()) {
loopBreakEnd()
break
}
loopBodyEnd()
}
funcEnd()
}
// CHECK-LABEL: sil hidden [ossa] @$s13foreach_async26trivialStructContinueBreakyyAA17AsyncLazySequenceVySaySiGGYaF : $@convention(thin) @async (@guaranteed AsyncLazySequence<Array<Int>>) -> ()
// CHECK: bb0([[SOURCE:%.*]] : @guaranteed $AsyncLazySequence<Array<Int>>):
// CHECK: [[ITERATOR_BOX:%.*]] = alloc_box ${ var AsyncLazySequence<Array<Int>>.Iterator }, var, name "$x$generator"
// CHECK: [[ITERATOR_BOX_LIFETIME:%.*]] = begin_borrow [var_decl] [[ITERATOR_BOX]]
// CHECK: [[PROJECT_ITERATOR_BOX:%.*]] = project_box [[ITERATOR_BOX_LIFETIME]]
// CHECK: br [[LOOP_DEST:bb[0-9]+]]
// CHECK: [[LOOP_DEST]]:
// CHECK: [[NEXT_RESULT:%.*]] = alloc_stack $Optional<Int>
// CHECK: [[ACTOR:%.*]] = enum $Optional<any Actor>, #Optional.none!enumelt
// CHECK: [[MUTATION:%.*]] = begin_access
// CHECK: [[WITNESS_METHOD:%.*]] = function_ref @$sScIsE4next9isolation7ElementQzSgScA_pSgYi_tYa7FailureQzYKF : $@convention(method) @async <τ_0_0 where τ_0_0 : AsyncIteratorProtocol> (@sil_isolated @guaranteed Optional<any Actor>, @inout τ_0_0) -> (@out Optional<τ_0_0.Element>, @error_indirect τ_0_0.Failure)
// CHECK: [[ERROR_SLOT:%[0-9]+]] = alloc_stack $Never
// CHECK: try_apply [[WITNESS_METHOD]]<AsyncLazySequence<[Int]>.Iterator>([[NEXT_RESULT]], [[ERROR_SLOT]], [[ACTOR]], [[MUTATION]]) : $@convention(method) @async <τ_0_0 where τ_0_0 : AsyncIteratorProtocol> (@sil_isolated @guaranteed Optional<any Actor>, @inout τ_0_0) -> (@out Optional<τ_0_0.Element>, @error_indirect τ_0_0.Failure), normal [[NORMAL_BB:bb[0-2]+]], error [[ERROR_BB:bb[0-9]+]]
// CHECK: [[NORMAL_BB]](
// CHECK: end_access [[MUTATION]]
// CHECK: switch_enum [[IND_VAR:%.*]] : $Optional<Int>, case #Optional.some!enumelt: [[SOME_BB:bb[0-9]+]], case #Optional.none!enumelt: [[NONE_BB:bb[0-9]+]]
// CHECK: [[SOME_BB]]([[VAR:%.*]] : $Int):
// CHECK: condition
// CHECK: cond_br [[VAR:%.*]], [[COND_TRUE:bb[0-9]+]], [[COND_FALSE:bb[0-9]+]]
// CHECK: [[COND_TRUE]]:
// CHECK: loopBreakEnd
// CHECK: br [[LOOP_EXIT:bb[0-9]+]]
// CHECK: [[COND_FALSE]]:
// CHECK: condition
// CHECK: cond_br [[VAR:%.*]], [[COND_TRUE2:bb[0-9]+]], [[COND_FALSE2:bb[0-9]+]]
// CHECK: [[COND_TRUE2]]:
// CHECK: loopContinueEnd
// CHECK: br [[LOOP_DEST]]
// CHECK: [[COND_FALSE2]]:
// CHECK: br [[LOOP_DEST]]
// CHECK: [[LOOP_EXIT]]:
// CHECK: return
// CHECK: } // end sil function '$s13foreach_async26trivialStructContinueBreakyyAA17AsyncLazySequenceVySaySiGGYaF'
func trivialStructContinueBreak(_ xx: AsyncLazySequence<[Int]>) async {
for await x in xx {
if (condition()) {
loopBreakEnd()
break
}
if (condition()) {
loopContinueEnd()
continue
}
loopBodyEnd()
}
funcEnd()
}
|
