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[5.10] ModuleInterface: prepare to accept access-level on imports in swiftinterfaces #68587

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Sep 19, 2023
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4 changes: 4 additions & 0 deletions lib/Frontend/ModuleInterfaceSupport.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -348,6 +348,10 @@ static void printImports(raw_ostream &out,
out << "@_spi(" << spiName << ") ";
}

if (M->getASTContext().LangOpts.isSwiftVersionAtLeast(6)) {
out << "public ";
}

out << "import ";
if (Opts.AliasModuleNames &&
AliasModuleNamesTargets.contains(importedModule->getName().str()))
Expand Down
7 changes: 5 additions & 2 deletions lib/Sema/TypeCheckAttr.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -968,7 +968,8 @@ void AttributeChecker::visitLazyAttr(LazyAttr *attr) {

bool AttributeChecker::visitAbstractAccessControlAttr(
AbstractAccessControlAttr *attr) {
// Access control attr may only be used on value decls and extensions.
// Access control attr may only be used on value decls, extensions and
// imports.
if (!isa<ValueDecl>(D) && !isa<ExtensionDecl>(D) && !isa<ImportDecl>(D)) {
diagnoseAndRemoveAttr(attr, diag::invalid_decl_modifier, attr);
return true;
Expand Down Expand Up @@ -996,7 +997,9 @@ bool AttributeChecker::visitAbstractAccessControlAttr(
}

if (auto importDecl = dyn_cast<ImportDecl>(D)) {
if (!D->getASTContext().LangOpts.hasFeature(Feature::AccessLevelOnImport)) {
SourceFile *File = D->getDeclContext()->getParentSourceFile();
if (!D->getASTContext().LangOpts.hasFeature(Feature::AccessLevelOnImport) &&
File && File->Kind != SourceFileKind::Interface) {
diagnoseAndRemoveAttr(attr, diag::access_level_on_import_not_enabled);
return true;
}
Expand Down
36 changes: 36 additions & 0 deletions test/ModuleInterface/imports-swift6.swift
Original file line number Diff line number Diff line change
@@ -0,0 +1,36 @@
/// Swift 6 variant to imports.swift. Both can be reintegrated once
/// -swift-version 6 is accepted by release compilers.
// REQUIRES: asserts

// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend -disable-implicit-concurrency-module-import -disable-implicit-string-processing-module-import -emit-module -o %t/empty.swiftmodule %S/../Inputs/empty.swift
// RUN: %target-swift-frontend -disable-implicit-concurrency-module-import -disable-implicit-string-processing-module-import -emit-module -o %t/emptyButWithLibraryEvolution.swiftmodule %S/../Inputs/empty.swift -enable-library-evolution

/// Swift 6 variant.
// RUN: %target-swift-emit-module-interface(%t.swiftinterface) %s %S/Inputs/imports-other.swift -disable-implicit-concurrency-module-import -disable-implicit-string-processing-module-import -I %S/Inputs/imports-clang-modules/ -I %t -verify -swift-version 6
// RUN: %target-swift-typecheck-module-from-interface(%t.swiftinterface) -I %S/Inputs/imports-clang-modules/ -I %t
// RUN: %FileCheck -implicit-check-not BAD -check-prefix CHECK-6 %s < %t.swiftinterface

@_exported import empty // expected-warning {{module 'empty' was not compiled with library evolution support; using it means binary compatibility for 'main' can't be guaranteed}}
@_exported import emptyButWithLibraryEvolution
import B.B2
import func C.c // expected-warning {{scoped imports are not yet supported in module interfaces}}
import D
@_implementationOnly import Secret_BAD

@_implementationOnly import NotSoSecret // expected-note {{imported as implementation-only here}}
import NotSoSecret2 // expected-warning {{'NotSoSecret2' inconsistently imported as implementation-only}}

// CHECK-6-NOT: import
// CHECK-6: {{^}}public import A{{$}}
// CHECK-6-NEXT: {{^}}public import B{{$}}
// CHECK-6-NEXT: {{^}}public import B.B2{{$}}
// CHECK-6-NEXT: {{^}}public import B.B3{{$}}
// CHECK-6-NEXT: {{^}}public import C/*.c*/{{$}}
// CHECK-6-NEXT: {{^}}public import D{{$}}
// CHECK-6-NEXT: {{^}}public import NotSoSecret{{$}}
// CHECK-6-NEXT: {{^}}public import NotSoSecret2{{$}}
// CHECK-6-NEXT: {{^}}public import Swift{{$}}
// CHECK-6-NEXT: {{^}}@_exported public import empty{{$}}
// CHECK-6-NEXT: {{^}}@_exported public import emptyButWithLibraryEvolution{{$}}
// CHECK-6-NOT: import
1 change: 0 additions & 1 deletion test/ModuleInterface/imports.swift
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@
// RUN: %target-swift-typecheck-module-from-interface(%t.swiftinterface) -I %S/Inputs/imports-clang-modules/ -I %t
// RUN: %FileCheck -implicit-check-not BAD %s < %t.swiftinterface


@_exported import empty // expected-warning {{module 'empty' was not compiled with library evolution support; using it means binary compatibility for 'imports' can't be guaranteed}}
@_exported import emptyButWithLibraryEvolution
import B.B2
Expand Down
27 changes: 22 additions & 5 deletions test/Sema/access-level-import-flag-check.swift
Original file line number Diff line number Diff line change
Expand Up @@ -2,11 +2,16 @@
// RUN: split-file %s %t

/// Build the libraries.
// RUN: %target-swift-frontend -emit-module %t/PublicLib.swift -o %t
// RUN: %target-swift-frontend -emit-module %t/PackageLib.swift -o %t
// RUN: %target-swift-frontend -emit-module %t/InternalLib.swift -o %t
// RUN: %target-swift-frontend -emit-module %t/FileprivateLib.swift -o %t
// RUN: %target-swift-frontend -emit-module %t/PrivateLib.swift -o %t
// RUN: %target-swift-frontend -emit-module %t/PublicLib.swift -o %t \
// RUN: -enable-library-evolution
// RUN: %target-swift-frontend -emit-module %t/PackageLib.swift -o %t \
// RUN: -enable-library-evolution
// RUN: %target-swift-frontend -emit-module %t/InternalLib.swift -o %t \
// RUN: -enable-library-evolution
// RUN: %target-swift-frontend -emit-module %t/FileprivateLib.swift -o %t \
// RUN: -enable-library-evolution
// RUN: %target-swift-frontend -emit-module %t/PrivateLib.swift -o %t \
// RUN: -enable-library-evolution

/// Check flag requirement, without and with the flag.
// RUN: %target-swift-frontend -typecheck %t/ClientWithoutTheFlag.swift -I %t -verify \
Expand All @@ -16,6 +21,9 @@
// RUN: -package-name package
// REQUIRES: asserts

/// swiftinterfaces don't need the flag.
// RUN: %target-swift-typecheck-module-from-interface(%t/Client.swiftinterface) -I %t

//--- PublicLib.swift
//--- PackageLib.swift
//--- InternalLib.swift
Expand All @@ -28,3 +36,12 @@ package import PackageLib // expected-error@:1 {{Access level on imports require
internal import InternalLib // expected-error@:1 {{Access level on imports require '-enable-experimental-feature AccessLevelOnImport'}}
fileprivate import FileprivateLib // expected-error@:1 {{Access level on imports require '-enable-experimental-feature AccessLevelOnImport'}}
private import PrivateLib // expected-error@:1 {{Access level on imports require '-enable-experimental-feature AccessLevelOnImport'}}

//--- Client.swiftinterface
// swift-interface-format-version: 1.0
// swift-module-flags: -enable-library-evolution -package-name MyPackage
public import PublicLib
package import PackageLib
internal import InternalLib
fileprivate import FileprivateLib
private import PrivateLib