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swift-mirror/test/SILGen/dynamically_replaceable.swift
Doug Gregor f267f62f65 [SILGen] Consistently use SIL asmname for foreign function/variable references 
Whenever we have a reference to a foreign function/variable in SIL, use
a mangled name at the SIL level with the C name in the asmname
attribute. The expands the use of asmname to three kinds of cases that
it hadn't been used in yet:

* Declarations imported from C headers/modules
* @_cdecl @implementation of C headers/modules
* @_cdecl functions in general

Some code within the SIL pipeline makes assumptions that the C names of
various runtime functions are reflected at the SIL level. For example,
the linking of Embedded Swift runtime functions is done by-name, and
some of those names refer to C functions (like `swift_retain`) and
others refer to Swift functions that use `@_silgen_name` (like
`swift_getDefaultExecutor`). Extend the serialized module format to
include a table that maps from the asmname of functions/variables over
to their mangled names, so we can look up functions by asmname if we
want. These tables could also be used for checking for declarations
that conflict on their asmname in the future. Right now, we leave it
up to LLVM or the linker to do the checking.

`@_silgen_name` is not affected by these changes, nor should it be:
that hidden feature is specifically meant to affect the name at the
SIL level.

The vast majority of test changes are SIL tests where we had expected
to see the C/C++/Objective-C names in the tests for references to
foreign entities, and now we see Swift mangled names (ending in To).
The SIL declarations themselves will have a corresponding asmname.

Notably, the IRGen tests have *not* changed, because we generally the
same IR as before. It's only the modeling at the SIL lever that has
changed.

Another part of rdar://137014448.
2025-10-29 19:35:55 -07:00

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// RUN: %target-swift-emit-silgen -Xllvm -sil-print-types -swift-version 5 %s | %FileCheck %s
// RUN: %target-swift-emit-silgen -Xllvm -sil-print-types -swift-version 5 %s -enable-implicit-dynamic | %FileCheck %s --check-prefix=IMPLICIT
// RUN: %target-swift-emit-silgen -Xllvm -sil-print-types -swift-version 5 %s -disable-previous-implementation-calls-in-dynamic-replacements | %FileCheck %s --check-prefix=NOPREVIOUS
// IMPLICIT-LABEL: sil private [ossa] @$s23dynamically_replaceable6$deferL_yyF
var x = 10
defer {
let y = x
}
// CHECK-LABEL: sil hidden [ossa] @$s23dynamically_replaceable014maybe_dynamic_B0yyF : $@convention(thin) () -> () {
// IMPLICIT-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable014maybe_dynamic_B0yyF : $@convention(thin) () -> () {
func maybe_dynamic_replaceable() {
}
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable08dynamic_B0yyF : $@convention(thin) () -> () {
dynamic func dynamic_replaceable() {
}
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable6StructV1xACSi_tcfC : $@convention(method) (Int, @thin Struct.Type) -> Struct
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable6StructV08dynamic_B0yyF : $@convention(method) (Struct) -> () {
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable6StructV08dynamic_B4_varSivg
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable6StructV08dynamic_B4_varSivs
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable6StructVyS2icig : $@convention(method) (Int, Struct) -> Int
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable6StructVyS2icis : $@convention(method) (Int, Int, @inout Struct) -> ()
// CHECK-LABEL: sil private [dynamically_replacable] [ossa] @$s23dynamically_replaceable6StructV22property_with_observerSivW
// CHECK-LABEL: sil private [dynamically_replacable] [ossa] @$s23dynamically_replaceable6StructV22property_with_observerSivw
struct Struct {
dynamic init(x: Int) {
}
dynamic func dynamic_replaceable() {
}
dynamic var dynamic_replaceable_var : Int {
get {
return 10
}
set {
}
}
dynamic subscript(x : Int) -> Int {
get {
return 10
}
set {
}
}
dynamic var property_with_observer : Int {
didSet {
}
willSet {
}
}
}
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable5KlassC1xACSi_tcfc : $@convention(method) (Int, @owned Klass) -> @owned Klass
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable5KlassC08dynamic_B0yyF : $@convention(method) (@guaranteed Klass) -> () {
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable5KlassC08dynamic_B4_varSivg
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable5KlassC08dynamic_B4_varSivs
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable5KlassCyS2icig : $@convention(method) (Int, @guaranteed Klass) -> Int
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable5KlassCyS2icis : $@convention(method) (Int, Int, @guaranteed Klass) -> ()
// CHECK-LABEL: sil private [dynamically_replacable] [ossa] @$s23dynamically_replaceable5KlassC22property_with_observerSivW
// CHECK-LABEL: sil private [dynamically_replacable] [ossa] @$s23dynamically_replaceable5KlassC22property_with_observerSivw
class Klass {
dynamic init(x: Int) {
}
dynamic convenience init(c: Int) {
self.init(x: c)
}
dynamic convenience init(a: Int, b: Int) {
}
dynamic func dynamic_replaceable() {
}
dynamic func dynamic_replaceable2() {
}
dynamic var dynamic_replaceable_var : Int {
get {
return 10
}
set {
}
}
dynamic subscript(x : Int) -> Int {
get {
return 10
}
set {
}
}
dynamic var property_with_observer : Int {
didSet {
}
willSet {
}
}
}
class SubKlass : Klass {
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable8SubKlassC1xACSi_tcfc
// CHECK: // dynamic_function_ref Klass.init(x:)
// CHECK: [[FUN:%.*]] = dynamic_function_ref @$s23dynamically_replaceable5KlassC1xACSi_tcfc
// CHECK: apply [[FUN]]
dynamic override init(x: Int) {
super.init(x: x)
}
}
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable6globalSivg : $@convention(thin) () -> Int {
dynamic var global : Int {
return 1
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable08dynamic_B0yyF"] [ossa] @$s23dynamically_replaceable11replacementyyF : $@convention(thin) () -> () {
@_dynamicReplacement(for: dynamic_replaceable())
func replacement() {
}
extension Klass {
// Calls to the replaced function inside the replacing function should be
// statically dispatched.
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC08dynamic_B0yyF"] [ossa] @$s23dynamically_replaceable5KlassC11replacementyyF : $@convention(method) (@guaranteed Klass) -> () {
// CHECK: [[FN:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable5KlassC11replacementyyF
// CHECK: apply [[FN]](%0) : $@convention(method) (@guaranteed Klass) -> ()
// CHECK: [[METHOD:%.*]] = class_method %0 : $Klass, #Klass.dynamic_replaceable2 :
// CHECK: = apply [[METHOD]](%0) : $@convention(method) (@guaranteed Klass) -> ()
// CHECK: return
// NOPREVIOUS-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC08dynamic_B0yyF"] [ossa] @$s23dynamically_replaceable5KlassC11replacementyyF : $@convention(method) (@guaranteed Klass) -> () {
// NOPREVIOUS: [[FN:%.*]] = class_method %0 : $Klass, #Klass.dynamic_replaceable
// NOPREVIOUS: apply [[FN]](%0) : $@convention(method) (@guaranteed Klass) -> ()
// NOPREVIOUS: [[METHOD:%.*]] = class_method %0 : $Klass, #Klass.dynamic_replaceable2 :
// NOPREVIOUS: = apply [[METHOD]](%0) : $@convention(method) (@guaranteed Klass) -> ()
// NOPREVIOUS: return
@_dynamicReplacement(for: dynamic_replaceable())
func replacement() {
dynamic_replaceable()
dynamic_replaceable2()
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC1cACSi_tcfC"] [ossa] @$s23dynamically_replaceable5KlassC2crACSi_tcfC : $@convention(method) (Int, @thick Klass.Type) -> @owned Klass {
// CHECK: [[FUN:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable5KlassC2crACSi_tcfC
// CHECK: apply [[FUN]]({{.*}}, %1)
// NOPREVIOUS-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC1cACSi_tcfC"] [ossa] @$s23dynamically_replaceable5KlassC2crACSi_tcfC : $@convention(method) (Int, @thick Klass.Type) -> @owned Klass {
// NOPREVIOUS: [[FUN:%.*]] = dynamic_function_ref @$s23dynamically_replaceable5KlassC1cACSi_tcfC
// NOPREVIOUS: apply [[FUN]]({{.*}}, %1)
@_dynamicReplacement(for: init(c:))
convenience init(cr: Int) {
self.init(c: cr + 1)
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC1a1bACSi_SitcfC"] [ossa] @$s23dynamically_replaceable5KlassC2ar2brACSi_SitcfC
// CHECK: // dynamic_function_ref Klass.__allocating_init(c:)
// CHECK: [[FUN:%.*]] = dynamic_function_ref @$s23dynamically_replaceable5KlassC1cACSi_tcfC
// CHECK: apply [[FUN]]({{.*}}, %2)
// NOPREVIOUS-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC1a1bACSi_SitcfC"] [ossa] @$s23dynamically_replaceable5KlassC2ar2brACSi_SitcfC
// NOPREVIOUS: // dynamic_function_ref Klass.__allocating_init(c:)
// NOPREVIOUS: [[FUN:%.*]] = dynamic_function_ref @$s23dynamically_replaceable5KlassC1cACSi_tcfC
// NOPREVIOUS: apply [[FUN]]({{.*}}, %2)
@_dynamicReplacement(for: init(a: b:))
convenience init(ar: Int, br: Int) {
self.init(c: ar + br)
}
@_dynamicReplacement(for: init(x:))
init(xr: Int) {
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC08dynamic_B4_varSivg"] [ossa] @$s23dynamically_replaceable5KlassC1rSivg : $@convention(method) (@guaranteed Klass) -> Int {
// CHECK: bb0([[ARG:%.*]] : @guaranteed $Klass):
// CHECK: [[ORIG:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable5KlassC1rSivg
// CHECK: apply [[ORIG]]([[ARG]]) : $@convention(method) (@guaranteed Klass) -> Int
// NOPREVIOUS-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC08dynamic_B4_varSivg"] [ossa] @$s23dynamically_replaceable5KlassC1rSivg : $@convention(method) (@guaranteed Klass) -> Int {
// NOPREVIOUS: bb0([[ARG:%.*]] : @guaranteed $Klass):
// NOPREVIOUS: [[ORIG:%.*]] = class_method [[ARG]] : $Klass, #Klass.dynamic_replaceable_var!getter
// NOPREVIOUS: apply [[ORIG]]([[ARG]]) : $@convention(method) (@guaranteed Klass) -> Int
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC08dynamic_B4_varSivs"] [ossa] @$s23dynamically_replaceable5KlassC1rSivs : $@convention(method) (Int, @guaranteed Klass) -> () {
// CHECK: bb0({{.*}} : $Int, [[SELF:%.*]] : @guaranteed $Klass):
// CHECK: [[ORIG:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable5KlassC1rSivs
// CHECK: apply [[ORIG]]({{.*}}, [[SELF]]) : $@convention(method)
// NOPREVIOUS-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassC08dynamic_B4_varSivs"] [ossa] @$s23dynamically_replaceable5KlassC1rSivs : $@convention(method) (Int, @guaranteed Klass) -> () {
// NOPREVIOUS: bb0({{.*}} : $Int, [[SELF:%.*]] : @guaranteed $Klass):
// NOPREVIOUS: [[ORIG:%.*]] = class_method [[SELF]] : $Klass, #Klass.dynamic_replaceable_var!setter
// NOPREVIOUS: apply [[ORIG]]({{.*}}, [[SELF]]) : $@convention(method)
@_dynamicReplacement(for: dynamic_replaceable_var)
var r : Int {
get {
return dynamic_replaceable_var + 1
}
set {
dynamic_replaceable_var = newValue + 1
}
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassCyS2icig"] [ossa] @$s23dynamically_replaceable5KlassC1xS2i_tcig
// CHECK: bb0({{.*}} : $Int, [[SELF:%.*]] : @guaranteed $Klass):
// CHECK: [[ORIG:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable5KlassC1xS2i_tcig
// CHECK: apply [[ORIG]]({{.*}}, [[SELF]]) : $@convention(method) (Int, @guaranteed Klass) -> Int
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable5KlassCyS2icis"] [ossa] @$s23dynamically_replaceable5KlassC1xS2i_tcis
// CHECK: bb0({{.*}} : $Int, {{.*}} : $Int, [[SELF:%.*]] : @guaranteed $Klass):
// CHECK: [[ORIG:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable5KlassC1xS2i_tcis
// CHECK: apply [[ORIG]]({{.*}}, {{.*}}, [[SELF]]) : $@convention(method) (Int, Int, @guaranteed Klass) -> ()
@_dynamicReplacement(for: subscript(_:))
subscript(x y: Int) -> Int {
get {
return self[y]
}
set {
self[y] = newValue
}
}
}
extension Struct {
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable6StructV08dynamic_B0yyF"] [ossa] @$s23dynamically_replaceable6StructV11replacementyyF : $@convention(method) (Struct) -> () {
// CHECK: [[FUN:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable6StructV11replacementyyF
// CHECK: apply [[FUN]](%0) : $@convention(method) (Struct) -> ()
@_dynamicReplacement(for: dynamic_replaceable())
func replacement() {
dynamic_replaceable()
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable6StructV1xACSi_tcfC"] [ossa] @$s23dynamically_replaceable6StructV1yACSi_tcfC : $@convention(method) (Int, @thin Struct.Type) -> Struct {
// CHECK: [[FUN:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable6StructV1yACSi_tcfC
// CHECK: apply [[FUN]]({{.*}}, %1)
@_dynamicReplacement(for: init(x:))
init(y: Int) {
self.init(x: y + 1)
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable6StructV08dynamic_B4_varSivg"] [ossa] @$s23dynamically_replaceable6StructV1rSivg
// CHECK: bb0([[ARG:%.*]] : $Struct):
// CHECK: [[ORIG:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable6StructV1rSivg
// CHECK: apply [[ORIG]]([[ARG]]) : $@convention(method) (Struct) -> Int
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable6StructV08dynamic_B4_varSivs"] [ossa] @$s23dynamically_replaceable6StructV1rSivs
// CHECK: bb0({{.*}} : $Int, [[ARG:%.*]] : $*Struct):
// CHECK: [[BA:%.*]] = begin_access [modify] [unknown] [[ARG]] : $*Struct
// CHECK: [[ORIG:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable6StructV1rSivs
// CHECK: apply [[ORIG]]({{.*}}, [[BA]]) : $@convention(method) (Int, @inout Struct) -> ()
// CHECK: end_access [[BA]] : $*Struct
@_dynamicReplacement(for: dynamic_replaceable_var)
var r : Int {
get {
return dynamic_replaceable_var + 1
}
set {
dynamic_replaceable_var = newValue + 1
}
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable6StructVyS2icig"] [ossa] @$s23dynamically_replaceable6StructV1xS2i_tcig
// CHECK: bb0({{.*}} : $Int, [[SELF:%.*]] : $Struct):
// CHECK: [[ORIG:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable6StructV1xS2i_tcig
// CHECK: apply [[ORIG]]({{.*}}, [[SELF]]) : $@convention(method) (Int, Struct) -> Int
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable6StructVyS2icis"] [ossa] @$s23dynamically_replaceable6StructV1xS2i_tcis
// CHECK: bb0({{.*}} : $Int, {{.*}} : $Int, [[SELF:%.*]] : $*Struct):
// CHECK: [[BA:%.*]] = begin_access [modify] [unknown] [[SELF]] : $*Struct
// CHECK: [[ORIG:%.*]] = prev_dynamic_function_ref @$s23dynamically_replaceable6StructV1xS2i_tcis
// CHECK: apply [[ORIG]]({{.*}}, {{.*}}, [[BA]]) : $@convention(method) (Int, Int, @inout Struct) -> ()
// CHECK: end_access [[BA]] : $*Struct
@_dynamicReplacement(for: subscript(_:))
subscript(x y: Int) -> Int {
get {
return self[y]
}
set {
self[y] = newValue
}
}
}
struct GenericS<T> {
dynamic init(x: Int) {
}
dynamic func dynamic_replaceable() {
}
dynamic var dynamic_replaceable_var : Int {
get {
return 10
}
set {
}
}
dynamic subscript(x : Int) -> Int {
get {
return 10
}
set {
}
}
// CHECK-LABEL: sil private [dynamically_replacable] [ossa] @$s23dynamically_replaceable8GenericSV22property_with_observerSivW
// CHECK-LABEL: sil private [dynamically_replacable] [ossa] @$s23dynamically_replaceable8GenericSV22property_with_observerSivw
dynamic var property_with_observer : Int {
didSet {
}
willSet {
}
}
}
extension GenericS {
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable8GenericSV08dynamic_B0yyF"] [ossa] @$s23dynamically_replaceable8GenericSV11replacementyyF
// CHECK: prev_dynamic_function_ref @$s23dynamically_replaceable8GenericSV11replacementyyF
@_dynamicReplacement(for: dynamic_replaceable())
func replacement() {
dynamic_replaceable()
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable8GenericSV1xACyxGSi_tcfC"] [ossa] @$s23dynamically_replaceable8GenericSV1yACyxGSi_tcfC
// CHECK: prev_dynamic_function_ref @$s23dynamically_replaceable8GenericSV1yACyxGSi_tcfC
@_dynamicReplacement(for: init(x:))
init(y: Int) {
self.init(x: y + 1)
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable8GenericSV08dynamic_B4_varSivg"] [ossa] @$s23dynamically_replaceable8GenericSV1rSivg
// CHECK: prev_dynamic_function_ref @$s23dynamically_replaceable8GenericSV1rSivg
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable8GenericSV08dynamic_B4_varSivs"] [ossa] @$s23dynamically_replaceable8GenericSV1rSivs
// CHECK: prev_dynamic_function_ref @$s23dynamically_replaceable8GenericSV1rSivs
@_dynamicReplacement(for: dynamic_replaceable_var)
var r : Int {
get {
return dynamic_replaceable_var + 1
}
set {
dynamic_replaceable_var = newValue + 1
}
}
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable8GenericSVyS2icig"] [ossa] @$s23dynamically_replaceable8GenericSV1xS2i_tcig
// CHECK: prev_dynamic_function_ref @$s23dynamically_replaceable8GenericSV1xS2i_tcig
// CHECK-LABEL: sil hidden [dynamic_replacement_for "$s23dynamically_replaceable8GenericSVyS2icis"] [ossa] @$s23dynamically_replaceable8GenericSV1xS2i_tcis
// CHECK: prev_dynamic_function_ref @$s23dynamically_replaceable8GenericSV1xS2i_tcis
@_dynamicReplacement(for: subscript(_:))
subscript(x y: Int) -> Int {
get {
return self[y]
}
set {
self[y] = newValue
}
}
// CHECK-LABEL: sil private [dynamic_replacement_for "$s23dynamically_replaceable8GenericSV22property_with_observerSivW"] [ossa] @$s23dynamically_replaceable8GenericSV34replacement_property_with_observerSivW
// CHECK-LABEL: sil private [dynamic_replacement_for "$s23dynamically_replaceable8GenericSV22property_with_observerSivw"] [ossa] @$s23dynamically_replaceable8GenericSV34replacement_property_with_observerSivw
@_dynamicReplacement(for: property_with_observer)
var replacement_property_with_observer : Int {
didSet {
}
willSet {
}
}
}
dynamic var globalX = 0
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable7globalXSivg : $@convention(thin) () -> Int
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable7globalXSivs : $@convention(thin) (Int) -> ()
// CHECK-LABEL: sil hidden [ossa] @$s23dynamically_replaceable7getsetXyS2iF
// CHECK: dynamic_function_ref @$s23dynamically_replaceable7globalXSivs
// CHECK: dynamic_function_ref @$s23dynamically_replaceable7globalXSivg
func getsetX(_ x: Int) -> Int {
globalX = x
return globalX
}
// CHECK-LABEL: sil hidden [ossa] @$s23dynamically_replaceable18funcWithDefaultArgyySSFfA_
// CHECK-LABEL: sil hidden [dynamically_replacable] [ossa] @$s23dynamically_replaceable18funcWithDefaultArgyySSF
dynamic func funcWithDefaultArg(_ arg : String = String("hello")) {
print("hello")
}
// IMPLICIT-LABEL: sil hidden [thunk] [asmname "barfoo"] [ossa] @$s23dynamically_replaceable6foobaryyFTo
@_cdecl("barfoo")
func foobar() {
}
// IMPLICIT-LABEL: sil [dynamically_replacable] [ossa] @$s23dynamically_replaceable16testWithLocalFunyyF
// IMPLICIT-LABEL: sil private [ossa] @$s23dynamically_replaceable16testWithLocalFunyyF05localF0L_yyF
// IMPLICIT-LABEL: sil private [ossa] @$s23dynamically_replaceable16testWithLocalFunyyF05localF0L_yyF0geF0L_yyF
// IMPLICIT-LABEL: sil private [ossa] @$s23dynamically_replaceable16testWithLocalFunyyFyycfU_
public func testWithLocalFun() {
func localFun() {
func localLocalFun() { print("bar") }
print("foo")
localLocalFun()
}
localFun()
let unnamedClosure = { print("foo") }
unnamedClosure()
}
@propertyWrapper
struct WrapperWithInitialValue<T> {
var wrappedValue: T
init(wrappedValue initialValue: T) {
self.wrappedValue = initialValue
}
}
// CHECK-NOT: sil hidden [ossa] @$s23dynamically_replaceable10SomeStructV1tSbvpfP
public struct SomeStruct {
@WrapperWithInitialValue var t = false
}
// Make sure that declaring the replacement before the original does not assert.
@_dynamicReplacement(for: orig)
func opaqueReplacement() -> Int {
return 2
}
dynamic func orig() -> Int {
return 1
}
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