| // RUN: %target-swift-frontend -emit-sil -enable-sil-ownership -disable-objc-attr-requires-foundation-module %s | %FileCheck %s |
| |
| // FIXME: This needs more tests |
| |
| @objc protocol P3 { |
| init?(p3: Int64) |
| } |
| |
| extension P3 { |
| // CHECK-LABEL: sil hidden @$S40definite_init_failable_initializers_objc2P3PAAE3p3axSgs5Int64V_tcfC : $@convention(method) <Self where Self : P3> (Int64, @thick Self.Type) -> @owned Optional<Self> |
| init!(p3a: Int64) { |
| self.init(p3: p3a)! // unnecessary-but-correct '!' |
| } |
| |
| // CHECK-LABEL: sil hidden @$S40definite_init_failable_initializers_objc2P3PAAE3p3bxs5Int64V_tcfC : $@convention(method) <Self where Self : P3> (Int64, @thick Self.Type) -> @owned Self |
| init(p3b: Int64) { |
| self.init(p3: p3b)! // necessary '!' |
| } |
| } |
| |
| class LifetimeTracked { |
| init(_: Int) {} |
| } |
| |
| class FakeNSObject { |
| @objc dynamic init() {} |
| } |
| |
| class Cat : FakeNSObject { |
| let x: LifetimeTracked |
| |
| // CHECK-LABEL: sil hidden @$S40definite_init_failable_initializers_objc3CatC1n5afterACSgSi_Sbtcfc : $@convention(method) (Int, Bool, @owned Cat) -> @owned Optional<Cat> |
| // CHECK: bb0(%0 : $Int, %1 : $Bool, %2 : $Cat): |
| // CHECK-NEXT: [[SELF_BOX:%.*]] = alloc_stack $Cat |
| // CHECK: store %2 to [[SELF_BOX]] : $*Cat |
| // CHECK: [[FIELD_ADDR:%.*]] = ref_element_addr %2 : $Cat, #Cat.x |
| // CHECK-NEXT: store {{%.*}} to [[FIELD_ADDR]] : $*LifetimeTracked |
| // CHECK-NEXT: [[COND:%.*]] = struct_extract %1 : $Bool, #Bool._value |
| // CHECK-NEXT: cond_br [[COND]], bb1, bb2 |
| |
| // CHECK: bb1: |
| // CHECK-NEXT: br bb3 |
| |
| // CHECK: bb2: |
| // CHECK-NEXT: [[SUPER:%.*]] = upcast %2 : $Cat to $FakeNSObject |
| // CHECK-NEXT: [[SUB:%.*]] = unchecked_ref_cast [[SUPER]] : $FakeNSObject to $Cat |
| // CHECK-NEXT: [[SUPER_FN:%.*]] = objc_super_method [[SUB]] : $Cat, #FakeNSObject.init!initializer.1.foreign : (FakeNSObject.Type) -> () -> FakeNSObject, $@convention(objc_method) (@owned FakeNSObject) -> @owned FakeNSObject |
| // CHECK-NEXT: [[NEW_SUPER_SELF:%.*]] = apply [[SUPER_FN]]([[SUPER]]) : $@convention(objc_method) (@owned FakeNSObject) -> @owned FakeNSObject |
| // CHECK-NEXT: [[NEW_SELF:%.*]] = unchecked_ref_cast [[NEW_SUPER_SELF]] : $FakeNSObject to $Cat |
| // CHECK-NEXT: store [[NEW_SELF]] to [[SELF_BOX]] : $*Cat |
| // TODO: Once we re-enable arbitrary take promotion, this retain and the associated destroy_addr will go away. |
| // CHECK-NEXT: strong_retain [[NEW_SELF]] |
| // CHECK-NEXT: [[RESULT:%.*]] = enum $Optional<Cat>, #Optional.some!enumelt.1, [[NEW_SELF]] : $Cat |
| // CHECK-NEXT: destroy_addr [[SELF_BOX]] |
| // CHECK-NEXT: dealloc_stack [[SELF_BOX]] : $*Cat |
| // CHECK-NEXT: br bb4([[RESULT]] : $Optional<Cat>) |
| |
| // CHECK: bb3: |
| // CHECK-NEXT: [[FIELD_ADDR:%.*]] = ref_element_addr %2 : $Cat, #Cat.x |
| // CHECK-NEXT: destroy_addr [[FIELD_ADDR]] : $*LifetimeTracked |
| // CHECK-NEXT: [[METATYPE:%.*]] = metatype $@thick Cat.Type |
| // CHECK-NEXT: dealloc_partial_ref %2 : $Cat, [[METATYPE]] : $@thick Cat.Type |
| // CHECK-NEXT: dealloc_stack [[SELF_BOX]] : $*Cat |
| // CHECK-NEXT: [[RESULT:%.*]] = enum $Optional<Cat>, #Optional.none!enumelt |
| // CHECK-NEXT: br bb4([[RESULT]] : $Optional<Cat>) |
| |
| // CHECK: bb4([[RESULT:%.*]] : $Optional<Cat>): |
| // CHECK-NEXT: return [[RESULT]] : $Optional<Cat> |
| |
| init?(n: Int, after: Bool) { |
| self.x = LifetimeTracked(0) |
| if after { |
| return nil |
| } |
| super.init() |
| } |
| } |