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[Sema] Check @_spiOnly imported decls exportability

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Decls imported via an @_spiOnly import can only be used in @_spi decls
signatures, internal decl signatures and non-inlinable function bodies.
This commit is contained in:
Alexis Laferrière
2022-08-25 21:33:47 -07:00
parent 67e35c3b3e
commit 6d396b4834
8 changed files with 308 additions and 12 deletions
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18
lib/AST/Module.cpp
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@@ -2527,21 +2527,25 @@ RestrictedImportKind SourceFile::getRestrictedImportKind(const ModuleDecl *modul
auto &imports = getASTContext().getImportCache();
RestrictedImportKind importKind = RestrictedImportKind::Implicit;
// Workaround for the cases where the bridging header isn't properly
// imported implicitly.
if (module->getName().str() == CLANG_HEADER_MODULE_NAME)
return RestrictedImportKind::None;
// Look at the imports of this source file.
for (auto &desc : *Imports) {
// Ignore implementation-only imports.
if (desc.options.contains(ImportFlags::ImplementationOnly)) {
if (imports.isImportedBy(module, desc.module.importedModule))
if (importKind < RestrictedImportKind::ImplementationOnly &&
imports.isImportedBy(module, desc.module.importedModule))
importKind = RestrictedImportKind::ImplementationOnly;
continue;
}
// If the module is imported publicly, it's not imported
// implementation-only.
if (imports.isImportedBy(module, desc.module.importedModule))
else if (desc.options.contains(ImportFlags::SPIOnly)) {
if (importKind < RestrictedImportKind::SPIOnly &&
imports.isImportedBy(module, desc.module.importedModule))
importKind = RestrictedImportKind::SPIOnly;
}
// If the module is imported publicly, there's no restriction.
else if (imports.isImportedBy(module, desc.module.importedModule))
return RestrictedImportKind::None;
}