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Introduce a package interface.

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It has an extension .package.swiftinterface and contains package decls
as well as SPIs and public/inlinable decls. When a module is loaded
from interface, it now looks up the package-name in the interface
and checks if the importer is in the same package. If so, it uses
that package interface found to load the module. If not, uses the existing
logic to load modules.

Resolves rdar://104617854
This commit is contained in:
Ellie Shin
2023-10-27 17:40:49 -07:00
parent 24dc3721bd
commit aba3b6c24e
27 changed files with 367 additions and 64 deletions
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13
include/swift/Serialization/SerializedModuleLoader.h
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@@ -62,11 +62,16 @@ struct SerializedModuleBaseName {
/// Gets the filename with a particular extension appended to it.
std::string getName(file_types::ID fileTy) const;
/// If the interface with \p baseName exists, returns its path (which may be
/// the private interface if there is one). Return an empty optional
/// otherwise.
/// If the interface with \p baseName exists, returns its path (which may be the
/// package interface if applicable (in the same package as the main module) or
/// private interface if there is one, else public). Return an empty optional otherwise.
llvm::Optional<std::string>
findInterfacePath(llvm::vfs::FileSystem &fs) const;
findInterfacePath(llvm::vfs::FileSystem &fs, ASTContext &ctx) const;
/// Returns the .package.swiftinterface path if its package-name also applies to
/// the the importing module. Returns an empty optional otherwise.
llvm::Optional<std::string>
getPackageInterfacePathIfInSamePackage(llvm::vfs::FileSystem &fs, ASTContext &ctx) const;
};
/// Common functionality shared between \c ImplicitSerializedModuleLoader,