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/// Check that non-public dependencies are hidden from clients.
// RUN: %empty-directory(%t)
// RUN: split-file %s %t
/// Prepare a module to hide or show depending on the import access-level.
// RUN: %target-swift-frontend -emit-module %t/HiddenDep.swift -o %t \
// RUN: -swift-version 5 -enable-library-evolution
//--- HiddenDep.swift
//--- PublicDep.swift
public import HiddenDep
//--- PackageDep.swift
package import HiddenDep
//--- InternalDep.swift
internal import HiddenDep
//--- FileprivateDep.swift
fileprivate import HiddenDep
//--- PrivateDep.swift
private import HiddenDep
/// With resilience, non-public dependencies should be hidden.
// RUN: %target-swift-frontend -emit-module %t/PublicDep.swift -o %t -I %t \
// RUN: -enable-library-evolution
// RUN: %target-swift-frontend -emit-module %t/PackageDep.swift -o %t -I %t \
// RUN: -enable-library-evolution -package-name MyPackage
// RUN: %target-swift-frontend -emit-module %t/InternalDep.swift -o %t -I %t \
// RUN: -enable-library-evolution
// RUN: %target-swift-frontend -emit-module %t/FileprivateDep.swift -o %t -I %t \
// RUN: -enable-library-evolution
// RUN: %target-swift-frontend -emit-module %t/PrivateDep.swift -o %t -I %t \
// RUN: -enable-library-evolution
// RUN: %target-swift-frontend -typecheck %t/ClientOfPublic.swift -I %t \
// RUN: -package-name MyOtherPackage \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefix=VISIBLE-DEP %s
// VISIBLE-DEP: loaded module 'HiddenDep'
//--- ClientOfPublic.swift
import PublicDep
// RUN: %target-swift-frontend -typecheck %t/ClientOfNonPublic.swift -I %t \
// RUN: -package-name pkg \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefix=HIDDEN-DEP %s
// HIDDEN-DEP-NOT: loaded module 'HiddenDep'
//--- ClientOfNonPublic.swift
import PackageDep
import InternalDep
import FileprivateDep
import PrivateDep
/// Without resilience, all access-level dependencies are visible to clients.
// RUN: %target-swift-frontend -emit-module %t/PublicDep.swift -o %t -I %t
// RUN: %target-swift-frontend -emit-module %t/PackageDep.swift -o %t -I %t \
// RUN: -package-name MyPackage
// RUN: %target-swift-frontend -emit-module %t/InternalDep.swift -o %t -I %t
// RUN: %target-swift-frontend -emit-module %t/FileprivateDep.swift -o %t -I %t
// RUN: %target-swift-frontend -emit-module %t/PrivateDep.swift -o %t -I %t
// RUN: %target-swift-frontend -typecheck %t/ClientOfPublic.swift -I %t \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefix=VISIBLE-DEP %s
// RUN: %target-swift-frontend -typecheck %t/ClientOfNonPublic.swift -I %t \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefix=VISIBLE-DEP %s
/// Even with resilience and testing enabled, all non-public dependencies are
/// hidden if there are no testable imports.
// RUN: %target-swift-frontend -emit-module %t/PublicDep.swift -o %t -I %t \
// RUN: -enable-library-evolution -enable-testing
// RUN: %target-swift-frontend -emit-module %t/PackageDep.swift -o %t -I %t \
// RUN: -enable-library-evolution -enable-testing -package-name MyPackage
// RUN: %target-swift-frontend -emit-module %t/InternalDep.swift -o %t -I %t \
// RUN: -enable-library-evolution -enable-testing
// RUN: %target-swift-frontend -emit-module %t/FileprivateDep.swift -o %t -I %t \
// RUN: -enable-library-evolution -enable-testing
// RUN: %target-swift-frontend -emit-module %t/PrivateDep.swift -o %t -I %t \
// RUN: -enable-library-evolution -enable-testing
// RUN: %target-swift-frontend -typecheck %t/ClientOfPublic.swift -I %t \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefix=VISIBLE-DEP %s
// RUN: %target-swift-frontend -typecheck %t/ClientOfNonPublic.swift -I %t \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefix=HIDDEN-DEP %s
/// With testable imports, transitive dependencies are required.
//--- TestableClientOfPublic.swift
@testable import PublicDep
//--- TestableClientOfNonPublic.swift
@testable import PackageDep // expected-error {{missing required module 'HiddenDep'}}
@testable import InternalDep // expected-error {{missing required module 'HiddenDep'}}
@testable import FileprivateDep // expected-error {{missing required module 'HiddenDep'}}
@testable import PrivateDep // expected-error {{missing required module 'HiddenDep'}}
// RUN: %target-swift-frontend -typecheck %t/TestableClientOfPublic.swift -I %t \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefix=VISIBLE-DEP %s
// RUN: %target-swift-frontend -typecheck %t/TestableClientOfNonPublic.swift -I %t \
// RUN: -package-name pkg \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefix=VISIBLE-DEP %s
/// In the case of a testable of a module reexporting another Swift module,
/// only non-public transitive dependencies from the first module are required.
/// Non-public imports from the reexported modules are not loaded, we could
/// revisit this if desired.
// RUN: %target-swift-frontend -emit-module %t/Exporter.swift -o %t -I %t \
// RUN: -enable-library-evolution -enable-testing
// RUN: %target-swift-frontend -typecheck %t/ExporterClient.swift -I %t \
// RUN: -index-system-modules -index-ignore-stdlib -index-store-path %t/idx \
// RUN: -Rmodule-loading 2>&1 | %FileCheck -check-prefixes=CHECK-EXPORTER,HIDDEN-DEP %s
// CHECK-EXPORTER: 'InternalDep' has an ignored transitive dependency on 'HiddenDep'
//--- Exporter.swift
@_exported import InternalDep
//--- ExporterClient.swift
@testable import Exporter
/// Fail if the transitive dependency is missing.
// RUN: rm %t/HiddenDep.swiftmodule
// RUN: %target-swift-frontend -typecheck %t/TestableClientOfNonPublic.swift -I %t \
// RUN: -package-name pkg \
// RUN: -verify -show-diagnostics-after-fatal
/// In a multi-file scenario, we try and fail to load the transitive dependency
/// only for @testable imports, not regular imports.
// RUN: %target-swift-frontend -typecheck -I %t \
// RUN: %t/TestableClientOfNonPublic_FileA.swift \
// RUN: %t/TestableClientOfNonPublic_FileB.swift \
// RUN: -verify -show-diagnostics-after-fatal
// RUN: %target-swift-frontend -typecheck -wmo -I %t \
// RUN: %t/TestableClientOfNonPublic_FileA.swift \
// RUN: %t/TestableClientOfNonPublic_FileB.swift \
// RUN: -verify -show-diagnostics-after-fatal
//--- TestableClientOfNonPublic_FileA.swift
import InternalDep
@testable import FileprivateDep // expected-error {{missing required module 'HiddenDep'}}
//--- TestableClientOfNonPublic_FileB.swift
@testable import InternalDep // expected-error {{missing required module 'HiddenDep'}}
import FileprivateDep
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