mirror of
https://github.com/apple/swift.git
synced 2026-06-20 15:42:51 +02:00
Doug Gregor
f2eb7cb1a8
The `@export(interface)` and `@export(implementation)` attributes SE-0497 are queried directly on AST nodes in several places within the SIL pipeline. However, they don't persist when SIL functions are serialized, meaning that clients of the original module might make different assumptions about the availability of a given function's definition. Represent these attributes in a SIL function (as an optional CodeGenerationModel), (de-)serialize them into the module, and add a textual representation as SIL function attributes `[export_interface]` and `[export_implementation]`.
82 lines
3.0 KiB
Swift
82 lines
3.0 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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// Library module
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// SIL checking
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// RUN: %target-swift-frontend %t/Library.swift -parse-as-library -entry-point-function-name Library_main -enable-experimental-feature Embedded -emit-sil -emit-module-path %t/Modules/Library.swiftmodule -o - | %FileCheck -check-prefix LIBRARY-SIL %s
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// IR checking to ensure we get the right weak symbols.
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// RUN: %target-swift-frontend %t/Library.swift -parse-as-library -entry-point-function-name Library_main -enable-experimental-feature Embedded -emit-ir -o - | %FileCheck -check-prefix LIBRARY-IR --dump-input-filter all %s
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// Application module
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// RUN: %target-swift-frontend %t/Application.swift -I %t/Modules -parse-as-library -entry-point-function-name Application_main -enable-experimental-feature Embedded -emit-sil -o - | %FileCheck -check-prefix APPLICATION-SIL %s
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// RUN: %target-swift-frontend %t/Application.swift -I %t/Modules -parse-as-library -entry-point-function-name Application_main -enable-experimental-feature Embedded -emit-ir -o - | %FileCheck -check-prefix APPLICATION-IR %s
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// REQUIRES: swift_in_compiler
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// REQUIRES: swift_feature_Embedded
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//--- Library.swift
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// LIBRARY-IR: define {{(protected |dllexport )?}}swiftcc ptr @"$e7Library5helloSaySiGyF"()
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@export(interface)
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public func hello() -> [Int] {
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getArray()
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}
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// LIBRARY-IR: define {{(protected |dllexport )?}}swiftcc ptr @"$e7Library8getArraySaySiGyF"()
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public func getArray() -> [Int] {
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throughInternal()
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}
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// LIBRARY-IR: define {{(protected |dllexport )?}}swiftcc ptr @"$e7Library15throughInternalSaySiGyF"()
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func throughInternal() -> [Int] {
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throughPrivate()
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}
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// LIBRARY-IR: define {{(protected |dllexport )?}}swiftcc ptr @"$e7Library14throughPrivate
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private func throughPrivate() -> [Int] {
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[5, 6, 7]
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}
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// LIBRARY-IR-NOT: unnecessary
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public func unnecessary() -> Int { 5 }
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// LIBRARY-IR: define linkonce_odr hidden swiftcc { ptr, ptr } @"$es27_allocateUninitializedArrayySayxG_BptBwlFSi_Tg5"
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// LIBRARY-SIL: sil [export_interface] @$e7Library5helloSaySiGyF
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// LIBRARY-SIL: sil @$e7Library8getArraySaySiGyF : $@convention(thin) () -> @owned Array<Int> {
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//--- Application.swift
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import Library
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@export(interface)
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public func testMe() {
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_ = hello()
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_ = getArray()
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}
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// Note: "hello" is emitted only into the object file, so there is no definition
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// here.
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// APPLICATION-SIL: sil [export_interface] @$e7Library5helloSaySiGyF : $@convention(thin) () -> @owned Array<Int>{{$}}
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// APPLICATION-IR: declare swiftcc ptr @"$e7Library5helloSaySiGyF"()
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// Note: "getArray" is not prohibited from being emitted into the client, so
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// its definition is available.
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// APPLICATION-SIL: sil public_external @$e7Library8getArraySaySiGyF : $@convention(thin) () -> @owned Array<Int> {
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// APPLICATION-IR: define linkonce_odr hidden swiftcc ptr @"$e7Library8getArraySaySiGyF"()
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// APPLICATION-IR: define{{.*}}@Application_main
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@main
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struct Main {
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static func main() {
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}
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}
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// APPLICATION-IR: define linkonce_odr hidden swiftcc { ptr, ptr } @"$es27_allocateUninitializedArrayySayxG_BptBwlFSi_Tg5"
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