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Frontend: add module interface flag to specify allowable clients. NFC #62166

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Merged
merged 1 commit into from
Nov 18, 2022
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Frontend: add module interface flag to specify allowable clients. NFC #62166

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4 changes: 4 additions & 0 deletions include/swift/Option/Options.td
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Original file line number Diff line number Diff line change
Expand Up @@ -1340,6 +1340,10 @@ def user_module_version : Separate<["-"], "user-module-version">,
HelpText<"Module version specified from Swift module authors">,
MetaVarName<"<vers>">;

def allowable_client : Separate<["-"], "allowable-client">,
Flags<[FrontendOption, ModuleInterfaceOptionIgnorable, NewDriverOnlyOption]>,
HelpText<"Module names that are allowed to import this module">,
MetaVarName<"<vers>">;
// VFS

def vfsoverlay : JoinedOrSeparate<["-"], "vfsoverlay">,
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10 changes: 10 additions & 0 deletions test/ModuleInterface/allowable-client.swift
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@@ -0,0 +1,10 @@
// RUN: %empty-directory(%t)
// RUN: %empty-directory(%t/textual)
// RUN: %empty-directory(%t/binary)

// RUN: %target-swift-frontend -emit-module %s -module-name Foo -swift-version 5 -disable-implicit-concurrency-module-import -allowable-client FooFriend1 -allowable-client FooFriend2 -allowable-client FooFriend3 -emit-module-interface-path %t/textual/Foo.swiftinterface -enable-library-evolution -emit-module-path %t/binary/Foo.swiftmodule

// RUN: %FileCheck %s --check-prefix=INTERFACE-FLAG < %t/textual/Foo.swiftinterface

// INTERFACE-FLAG: swift-module-flags-ignorable:
// INTERFACE-FLAG: -allowable-client FooFriend1 -allowable-client FooFriend2 -allowable-client FooFriend3