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swift-mirror/test/attr/attr_availability_transitive_osx_appext.swift
Allan Shortlidge eafea5b21e Sema: Relax availability checking in universally unavailable contexts. 
Recent refactoring fixed a bug that previously caused `f()` to be checked as if
it were unavailable only on macOS in the following example:

```
@available(macOS, unavailable)
struct Outer {
  @available(*, unavailable)
  func f() {
    someFunctionUnavailableOnMacOS()
  }
}
```

Unfortunately, fixing that bug made a different existing availability checking
rule more problematic. References to declarations that are unavailable on the
current platform have been diagnosed as unavailable even in contexts that are
universally unavailable. This long standing behavior is overly strict but it
rarely had consequences. However, now that the example above is modeled
correctly, this overly strict behavior is causing some source compatibility
issues. The easiest solution is to relax the overly strict checking.

Resolves rdar://141124478.
2024-12-09 17:15:15 -08:00

363 lines
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// RUN: %target-typecheck-verify-swift -parse-as-library -application-extension
// REQUIRES: OS=macosx
// Allow referencing unavailable API in situations where the caller is marked unavailable in the same circumstances.
@available(*, unavailable)
struct NeverAvailable {} // expected-note * {{'NeverAvailable' has been explicitly marked unavailable here}}
@available(OSX, unavailable)
struct OSXUnavailable {} // expected-note * {{'OSXUnavailable' has been explicitly marked unavailable here}}
@available(OSXApplicationExtension, unavailable)
struct OSXAppExtensionsUnavailable {} // expected-note * {{'OSXAppExtensionsUnavailable' has been explicitly marked unavailable here}}
@available(*, unavailable)
@discardableResult
func never() -> NeverAvailable { // expected-note * {{'never()' has been explicitly marked unavailable here}}
NeverAvailable()
}
@available(OSX, unavailable)
@discardableResult
func osx() -> OSXUnavailable { // expected-note * {{'osx()' has been explicitly marked unavailable here}}
OSXUnavailable()
}
@available(OSXApplicationExtension, unavailable)
@discardableResult
func osx_extension() -> OSXAppExtensionsUnavailable { // expected-note * {{'osx_extension()' has been explicitly marked unavailable here}}
OSXAppExtensionsUnavailable()
}
// MARK: Global functions
func available_func(
_: NeverAvailable, // expected-error {{'NeverAvailable' is unavailable}}
_: OSXUnavailable, // expected-error {{'OSXUnavailable' is unavailable in macOS}}
_: OSXAppExtensionsUnavailable // expected-error {{'OSXAppExtensionsUnavailable' is unavailable in application extensions for macOS}}
) {
never() // expected-error {{'never()' is unavailable}}
osx() // expected-error {{'osx()' is unavailable}}
osx_extension() // expected-error {{'osx_extension()' is unavailable in application extensions for macOS}}
}
@available(*, unavailable)
func never_available_func(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(OSX, unavailable)
func osx_func(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(OSXApplicationExtension, unavailable)
func osx_extension_func(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx() // expected-error {{'osx()' is unavailable}}
osx_extension()
}
// MARK: Global vars
var always_var: (
NeverAvailable, // expected-error {{'NeverAvailable' is unavailable}}
OSXUnavailable, // expected-error {{'OSXUnavailable' is unavailable in macOS}}
OSXAppExtensionsUnavailable // expected-error {{'OSXAppExtensionsUnavailable' is unavailable in application extensions for macOS}}
) = (
never(), // expected-error {{'never()' is unavailable}}
osx(), // expected-error {{'osx()' is unavailable}}
osx_extension() // expected-error {{'osx_extension()' is unavailable in application extensions for macOS}}
)
@available(*, unavailable)
var never_var: (
NeverAvailable,
OSXUnavailable,
OSXAppExtensionsUnavailable
) = (
never(), // expected-error {{'never()' is unavailable}}
osx(),
osx_extension()
)
@available(OSX, unavailable)
var osx_var: (
NeverAvailable,
OSXUnavailable,
OSXAppExtensionsUnavailable
) = (
never(), // expected-error {{'never()' is unavailable}}
osx(),
osx_extension()
)
@available(OSXApplicationExtension, unavailable)
var osx_extension_var: (
NeverAvailable,
OSXUnavailable,
OSXAppExtensionsUnavailable
) = (
never(), // expected-error {{'never()' is unavailable}}
osx(), // expected-error {{'osx()' is unavailable}}
osx_extension()
)
// MARK: Properties
struct AlwaysAvailabileContainer {
let never_var: NeverAvailable = never() // expected-error {{'never()' is unavailable}}
// expected-error@-1 {{'NeverAvailable' is unavailable}}
let osx_var: OSXUnavailable = osx() // expected-error {{'osx()' is unavailable}}
// expected-error@-1 {{'OSXUnavailable' is unavailable in macOS}}
let osx_extension_var: OSXAppExtensionsUnavailable = osx_extension() // expected-error {{'osx_extension()' is unavailable in application extensions for macOS}}
// expected-error@-1 {{'OSXAppExtensionsUnavailable' is unavailable in application extensions for macOS}}
}
@available(*, unavailable)
struct NeverAvailableContainer { // expected-note {{'NeverAvailableContainer' has been explicitly marked unavailable here}}
let never_var: NeverAvailable = never() // expected-error {{'never()' is unavailable}}
let osx_var: OSXUnavailable = osx()
let osx_extension_var: OSXAppExtensionsUnavailable = osx_extension()
}
@available(OSX, unavailable)
struct OSXUnavailableContainer { // expected-note {{'OSXUnavailableContainer' has been explicitly marked unavailable here}}
let never_var: NeverAvailable = never() // expected-error {{'never()' is unavailable}}
let osx_var: OSXUnavailable = osx()
let osx_extension_var: OSXAppExtensionsUnavailable = osx_extension()
}
@available(OSXApplicationExtension, unavailable)
struct OSXAppExtensionsUnavailableContainer { // expected-note {{'OSXAppExtensionsUnavailableContainer' has been explicitly marked unavailable here}}
let never_var: NeverAvailable = never() // expected-error {{'never()' is unavailable}}
let osx_var: OSXUnavailable = osx() // expected-error {{'osx()' is unavailable}}
let osx_extension_var: OSXAppExtensionsUnavailable = osx_extension()
}
// MARK: Extensions
extension AlwaysAvailabileContainer {}
extension NeverAvailableContainer {} // expected-error {{'NeverAvailableContainer' is unavailable}}
extension OSXUnavailableContainer {} // expected-error {{'OSXUnavailableContainer' is unavailable in macOS}}
extension OSXAppExtensionsUnavailableContainer {} // expected-error {{'OSXAppExtensionsUnavailableContainer' is unavailable in application extensions for macOS}}
@available(*, unavailable)
extension AlwaysAvailabileContainer {}
@available(*, unavailable)
extension NeverAvailableContainer {}
@available(*, unavailable)
extension OSXUnavailableContainer {}
@available(*, unavailable)
extension OSXAppExtensionsUnavailableContainer {}
@available(OSX, unavailable)
extension AlwaysAvailabileContainer {}
@available(OSX, unavailable)
extension NeverAvailableContainer {}
@available(OSX, unavailable)
extension OSXUnavailableContainer {}
@available(OSX, unavailable)
extension OSXAppExtensionsUnavailableContainer {}
@available(OSXApplicationExtension, unavailable)
extension AlwaysAvailabileContainer {}
@available(OSXApplicationExtension, unavailable)
extension NeverAvailableContainer {}
@available(OSXApplicationExtension, unavailable)
extension OSXUnavailableContainer {}
@available(OSXApplicationExtension, unavailable)
extension OSXAppExtensionsUnavailableContainer {}
struct ExtendMe {}
@available(*, unavailable)
extension ExtendMe {
func never_available_extension_available_method() {} // expected-note {{has been explicitly marked unavailable here}}
@available(OSX 99, *)
func never_available_extension_osx_future_method() {} // expected-note {{has been explicitly marked unavailable here}}
func never_available_extension_available_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(*, unavailable)
func never_available_extension_never_available_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(OSX, unavailable)
func never_available_extension_osx_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(OSXApplicationExtension, unavailable)
func never_available_extension_osx_app_extension_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
}
@available(OSX, unavailable)
extension ExtendMe {
func osx_extension_available_method() {} // expected-note {{has been explicitly marked unavailable here}}
@available(OSX 99, *)
func osx_extension_osx_future_method() {} // expected-note {{has been explicitly marked unavailable here}}
func osx_extension_available_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(*, unavailable)
func osx_extension_never_available_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(OSX, unavailable)
func osx_extension_osx_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(OSXApplicationExtension, unavailable)
func osx_extension_osx_app_extension_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
}
@available(OSXApplicationExtension, unavailable)
extension ExtendMe {
func osx_app_extension_extension_available_method() {} // expected-note {{'osx_app_extension_extension_available_method()' has been explicitly marked unavailable here}}
@available(OSX 99, *)
func osx_app_extension_extension_osx_future_method() {} // expected-note {{'osx_app_extension_extension_osx_future_method()'}}
func osx_app_extension_extension_available_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx() // expected-error {{'osx()' is unavailable}}
osx_extension()
}
@available(*, unavailable)
func osx_app_extension_extension_never_available_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(OSX, unavailable)
func osx_app_extension_extension_osx_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx()
osx_extension()
}
@available(OSXApplicationExtension, unavailable)
func osx_app_extension_extension_osx_app_extension_method(
_: NeverAvailable,
_: OSXUnavailable,
_: OSXAppExtensionsUnavailable
) {
never() // expected-error {{'never()' is unavailable}}
osx() // expected-error {{'osx()' is unavailable}}
osx_extension()
}
}
func available_func_call_extension_methods(_ e: ExtendMe) {
e.never_available_extension_available_method() // expected-error {{'never_available_extension_available_method()' is unavailable}}
e.osx_extension_available_method() // expected-error {{'osx_extension_available_method()' is unavailable in macOS}}
e.osx_app_extension_extension_available_method() // expected-error {{'osx_app_extension_extension_available_method()' is unavailable in application extensions for macOS}}
// rdar://92551870
e.never_available_extension_osx_future_method() // expected-error {{'never_available_extension_osx_future_method()' is unavailable}}
e.osx_extension_osx_future_method() // expected-error {{'osx_extension_osx_future_method()' is unavailable in macOS}}
e.osx_app_extension_extension_osx_future_method() // expected-error {{'osx_app_extension_extension_osx_future_method()' is unavailable in application extensions for macOS}}
}
@available(OSXApplicationExtension, introduced: 99)
func osx_app_extensions_future() {}
func call_osx_app_extensions_future() { // expected-note {{add @available attribute to enclosing global function}} {{1-1=@available(macOSApplicationExtension 99, *)\n}}
osx_app_extensions_future() // expected-error {{'osx_app_extensions_future()' is only available in application extensions for macOS 99 or newer}}
// expected-note@-1 {{add 'if #available' version check}} {{3-30=if #available(macOS 99, *) {\n osx_app_extensions_future()\n \} else {\n // Fallback on earlier versions\n \}}}
}
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