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322 lines
12 KiB
Swift
322 lines
12 KiB
Swift
// RUN: %target-typecheck-verify-swift -enable-experimental-feature Extern -enable-experimental-feature ABIAttribute -parse-as-library
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// REQUIRES: swift_feature_ABIAttribute
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// REQUIRES: swift_feature_Extern
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//
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// Same-kind checking
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//
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@abi(func funcForFunc_abi())
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func funcForFunc() {}
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@abi(var varForVar_abi: Int)
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var varForVar: Int = 0
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@abi(func funcForVar_abi()) // expected-error {{cannot give var 'funcForVar' the ABI of a global function}}
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var funcForVar: Int = 0
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@abi(var varForFunc_abi: Int) // expected-error {{cannot give global function 'varForFunc()' the ABI of a pattern binding}}
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func varForFunc() {}
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//
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// Function arity checking
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//
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@abi(func param00_generic00() -> Int)
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func param00_generic00() -> Int { fatalError() }
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@abi(func param10_generic00(_: Int) -> Int) // expected-error {{cannot give global function 'param10_generic00()' the ABI of a global function with a different number of low-level parameters}}
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func param10_generic00() -> Int { fatalError() }
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@abi(func param01_generic00() -> Int) // expected-error {{cannot give global function 'param01_generic00' the ABI of a global function with a different number of low-level parameters}}
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func param01_generic00(_: Int) -> Int { fatalError() }
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@abi(func param11_generic00(_: Int) -> Int)
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func param11_generic00(_: Int) -> Int { fatalError() }
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@abi(func param00_generic10<T>() -> T) // expected-error {{cannot give global function 'param00_generic10()' the ABI of a global function with a different number of low-level parameters}}
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func param00_generic10() -> Int { fatalError() }
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@abi(func param10_generic10<T>(_: Int) -> T) // expected-error {{cannot give global function 'param10_generic10()' the ABI of a global function with a different number of low-level parameters}}
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func param10_generic10() -> Int { fatalError() }
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@abi(func param01_generic10<T>() -> T)
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func param01_generic10(_: Int) -> Int { fatalError() }
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@abi(func param11_generic10<T>(_: Int) -> T) // expected-error {{cannot give global function 'param11_generic10' the ABI of a global function with a different number of low-level parameters}}
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func param11_generic10(_: Int) -> Int { fatalError() }
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@abi(func param00_generic01() -> Int) // expected-error {{cannot give global function 'param00_generic01()' the ABI of a global function with a different number of low-level parameters}}
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func param00_generic01<T>() -> T { fatalError() }
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@abi(func param10_generic01(_: Int) -> Int)
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func param10_generic01<T>() -> T { fatalError() }
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@abi(func param01_generic01() -> Int) // expected-error {{cannot give global function 'param01_generic01' the ABI of a global function with a different number of low-level parameters}}
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func param01_generic01<T>(_: Int) -> T { fatalError() }
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@abi(func param11_generic01(_: Int) -> Int) // expected-error {{cannot give global function 'param11_generic01' the ABI of a global function with a different number of low-level parameters}}
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func param11_generic01<T>(_: Int) -> T { fatalError() }
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@abi(func param00_generic11<T>() -> T)
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func param00_generic11<T>() -> T { fatalError() }
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@abi(func param10_generic11<T>(_: Int) -> T) // expected-error {{cannot give global function 'param10_generic11()' the ABI of a global function with a different number of low-level parameters}}
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func param10_generic11<T>() -> T { fatalError() }
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@abi(func param01_generic11<T>() -> T) // expected-error {{cannot give global function 'param01_generic11' the ABI of a global function with a different number of low-level parameters}}
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func param01_generic11<T>(_: Int) -> T { fatalError() }
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@abi(func param11_generic11<T>(_: Int) -> T)
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func param11_generic11<T>(_: Int) -> T { fatalError() }
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//
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// Throws effect checking
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//
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@abi(func throws00(_: () throws -> Void))
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func throws00(_: () throws -> Void) {}
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@abi(func throws10(_: () throws -> Void) throws) // expected-error {{cannot give 'throws10' the ABI of a global function which can throw}}
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func throws10(_: () throws -> Void) {}
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@abi(func throws20(_: () throws -> Void) rethrows) // expected-error {{cannot give 'throws20' the ABI of a global function which can throw}}
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func throws20(_: () throws -> Void) {}
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@abi(func throws01(_: () throws -> Void)) // expected-error {{cannot give 'throws01' the ABI of a global function which cannot throw}}
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func throws01(_: () throws -> Void) throws {}
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@abi(func throws11(_: () throws -> Void) throws)
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func throws11(_: () throws -> Void) throws {}
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@abi(func throws21(_: () throws -> Void) rethrows)
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func throws21(_: () throws -> Void) throws {}
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@abi(func throws02(_: () throws -> Void)) // expected-error {{cannot give 'throws02' the ABI of a global function which cannot throw}}
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func throws02(_: () throws -> Void) rethrows {}
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@abi(func throws12(_: () throws -> Void) throws)
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func throws12(_: () throws -> Void) rethrows {}
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@abi(func throws22(_: () throws -> Void) rethrows)
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func throws22(_: () throws -> Void) rethrows {}
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//
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// Async effect checking
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//
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@abi(func async00())
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func async00() {}
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@abi(func async10() async) // expected-error {{cannot give 'async10()' the ABI of an async global function}}
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func async10() {}
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@abi(func async01()) // expected-error {{cannot give 'async01()' the ABI of a non-async global function}}
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func async01() async {}
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@abi(func async11() async)
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func async11() async {}
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//
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// Miscellaneous function checking
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//
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@_silgen_name("conflictingAttrsSilgenName")
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@abi(func conflictingAttrsABI())
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func conflictingAttrsAPI() {} // expected-error@-2 {{cannot use '@_silgen_name' and '@abi' on the same global function because they serve the same purpose}} {{1-44=}}
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//
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// PBD shape checking
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//
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@abi(var x1, y1: Int) // expected-error {{cannot give pattern binding the ABI of a binding with more patterns}}
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var x1: Int = 0
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@abi(var x2: Int)
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var x2 = 0, y2: Int = 0 // expected-error {{cannot give pattern binding the ABI of a binding with fewer patterns}}
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@abi(var (x3, y3): (Int, Int), (a3, b3): (Int, Int)) // expected-error {{no match for ABI var 'b3'}}
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var (x3, y3): (Int, Int) = (0, 0), a3: Int = 0
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@abi(var (x4, y4): (Int, Int), a4: Int)
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var (x4, y4): (Int, Int) = (0, 0), (a4, b4): (Int, Int) = (0, 0) // expected-error {{no match for var 'b4' in the ABI}}
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//
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// Conflict diagnostics
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//
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@abi(func noConflictWithSelf())
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func noConflictWithSelf() {}
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@abi(func noConflictWithMutualChanges1())
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func noConflictWithMutualChanges2() {}
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@abi(func noConflictWithMutualChanges2())
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func noConflictWithMutualChanges1() {}
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@abi(func conflictsWithOtherABI()) // expected-note {{'conflictsWithOtherABI()' previously declared here}}
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func conflictsWithOtherABI1() {}
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@abi(func conflictsWithOtherABI()) // expected-error {{invalid redeclaration of 'conflictsWithOtherABI()'}}
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func conflictsWithOtherABI2() {}
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@abi(func conflictsWithNonABI()) // expected-error {{invalid redeclaration of 'conflictsWithNonABI()'}}
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func conflictsWithNonABI_formal() {}
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func conflictsWithNonABI() {} // expected-note {{'conflictsWithNonABI()' previously declared here}}
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@abi(var var_noConflictWithSelf: Int)
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var var_noConflictWithSelf: Int = 0
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@abi(var var_noConflictWithMutualChanges1: Int)
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var var_noConflictWithMutualChanges2: Int = 0
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@abi(var var_noConflictWithMutualChanges2: Int)
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var var_noConflictWithMutualChanges1: Int = 0
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@abi(var var_conflictsWithOtherABI: Int) // expected-note {{'var_conflictsWithOtherABI' previously declared here}}
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var var_conflictsWithOtherABI1: Int = 0
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@abi(var var_conflictsWithOtherABI: Int) // expected-error {{invalid redeclaration of 'var_conflictsWithOtherABI'}}
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var var_conflictsWithOtherABI2: Int = 0
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@abi(var var_conflictsWithNonABI: Int) // expected-error {{invalid redeclaration of 'var_conflictsWithNonABI'}}
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var var_conflictsWithNonABI_formal: Int = 0
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var var_conflictsWithNonABI: Int = 0 // expected-note {{'var_conflictsWithNonABI' previously declared here}}
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struct Foo {
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@abi(func noConflictWithSelf())
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func noConflictWithSelf() {}
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@abi(func noConflictWithMutualChanges1())
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func noConflictWithMutualChanges2() {}
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@abi(func noConflictWithMutualChanges2())
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func noConflictWithMutualChanges1() {}
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@abi(func conflictsWithOtherABI()) // expected-note {{'conflictsWithOtherABI()' previously declared here}}
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func conflictsWithOtherABI1() {}
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@abi(func conflictsWithOtherABI()) // expected-error {{invalid redeclaration of 'conflictsWithOtherABI()'}}
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func conflictsWithOtherABI2() {}
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@abi(func conflictsWithNonABI()) // expected-error {{invalid redeclaration of 'conflictsWithNonABI()'}}
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func conflictsWithNonABI_formal() {}
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func conflictsWithNonABI() {} // expected-note {{'conflictsWithNonABI()' previously declared here}}
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@abi(var var_noConflictWithSelf: Int)
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var var_noConflictWithSelf: Int = 0
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@abi(var var_noConflictWithMutualChanges1: Int)
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var var_noConflictWithMutualChanges2: Int = 0
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@abi(var var_noConflictWithMutualChanges2: Int)
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var var_noConflictWithMutualChanges1: Int = 0
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@abi(var var_conflictsWithOtherABI: Int) // expected-note {{'var_conflictsWithOtherABI' previously declared here}}
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var var_conflictsWithOtherABI1: Int = 0
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@abi(var var_conflictsWithOtherABI: Int) // expected-error {{invalid redeclaration of 'var_conflictsWithOtherABI'}}
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var var_conflictsWithOtherABI2: Int = 0
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@abi(var var_conflictsWithNonABI: Int) // expected-error {{invalid redeclaration of 'var_conflictsWithNonABI'}}
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var var_conflictsWithNonABI_formal: Int = 0
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var var_conflictsWithNonABI: Int = 0 // expected-note {{'var_conflictsWithNonABI' previously declared here}}
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}
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func fn() {
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// TODO: Figure out if @abi makes sense in local scope and, if so, when we
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// should complain about redecls.
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@abi(func noConflictWithSelf())
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func noConflictWithSelf() {}
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@abi(func noConflictWithMutualChanges1())
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func noConflictWithMutualChanges2() {}
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@abi(func noConflictWithMutualChanges2())
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func noConflictWithMutualChanges1() {}
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@abi(func conflictsWithOtherABI()) // expected-note {{'conflictsWithOtherABI()' previously declared here}}
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func conflictsWithOtherABI1() {}
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@abi(func conflictsWithOtherABI()) // expected-error {{invalid redeclaration of 'conflictsWithOtherABI()'}}
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func conflictsWithOtherABI2() {}
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@abi(func conflictsWithNonABI()) // expected-error {{invalid redeclaration of 'conflictsWithNonABI()'}}
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func conflictsWithNonABI_formal() {}
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func conflictsWithNonABI() {} // expected-note {{'conflictsWithNonABI()' previously declared here}}
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var a = 1 // expected-note {{'a' previously declared here}}
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var a = 1 // expected-error {{invalid redeclaration of 'a'}}
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@abi(var var_noConflictWithSelf: Int)
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var var_noConflictWithSelf: Int = 0
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@abi(var var_noConflictWithMutualChanges1: Int)
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var var_noConflictWithMutualChanges2: Int = 0
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@abi(var var_noConflictWithMutualChanges2: Int)
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var var_noConflictWithMutualChanges1: Int = 0
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@abi(var var_conflictsWithOtherABI: Int) // expected-note {{'var_conflictsWithOtherABI' previously declared here}}
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var var_conflictsWithOtherABI1: Int = 0
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@abi(var var_conflictsWithOtherABI: Int) // expected-error {{invalid redeclaration of 'var_conflictsWithOtherABI'}}
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var var_conflictsWithOtherABI2: Int = 0
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// Diagnosed in the opposite order from usual due to being in a local scope where visibility may be limited:
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@abi(var var_conflictsWithNonABI: Int) // expected-note {{'var_conflictsWithNonABI' previously declared here}}
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var var_conflictsWithNonABI_formal: Int = 0
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var var_conflictsWithNonABI: Int = 0 // expected-error {{invalid redeclaration of 'var_conflictsWithNonABI'}}
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}
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//
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// Incorrect usage
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//
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@abi(func bar()) // expected-note {{attribute already specified here}}
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@abi(func foo()) // expected-error {{duplicate attribute}}
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func duplicateABIAttr() {}
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// Test parser recovery by having something that
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// should parse fine.
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func somethingThatShouldParseFine() {}
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func func_with_nested_abi() {
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@abi(func _exit(_ code: UInt32) -> Void)
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func exit(_ code : UInt32) -> Void {}
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exit(0)
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}
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@abi(var x = 1) // expected-error {{initial value is not allowed here}} expected-error {{type annotation missing in pattern}}
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var x = 1
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//
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// Examples of expected use cases
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//
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@abi(func originallySendable() -> @Sendable () -> Void)
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func originallySendable() -> sending () -> Void { fatalError() }
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@abi(func originallyGenericSendable<T: Sendable>() -> T)
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func originallyGenericSendable<T>() -> sending T { fatalError() }
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@abi(func originallyAnySendable() -> any Sendable)
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func originallyAnySendable() -> sending Any { fatalError() }
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@abi(nonisolated func explicitIsolationChanged() -> @Sendable () -> Void)
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@MainActor func explicitIsolationChanged() -> sending () -> Void { fatalError() }
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