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//===--- SwiftToClangInteropContext.h - Interop context ---------*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#ifndef SWIFT_PRINTASCLANG_SWIFTTOCLANGINTEROPCONTEXT_H
#define SWIFT_PRINTASCLANG_SWIFTTOCLANGINTEROPCONTEXT_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringSet.h"
#include <memory>
#include <optional>
namespace swift {
class Decl;
class IRABIDetailsProvider;
class IRGenOptions;
class ModuleDecl;
class ExtensionDecl;
class NominalTypeDecl;
/// The \c SwiftToClangInteropContext class is responsible for providing
/// access to the other required subsystems of the compiler during the emission
/// of a clang header. It provides access to the other subsystems lazily to
/// ensure avoid any additional setup cost that's not required.
class SwiftToClangInteropContext {
public:
SwiftToClangInteropContext(ModuleDecl &mod, const IRGenOptions &irGenOpts);
~SwiftToClangInteropContext();
IRABIDetailsProvider &getIrABIDetails();
// Runs the given function if we haven't emitted some context-specific stub
// for the given concrete stub name.
void runIfStubForDeclNotEmitted(llvm::StringRef stubName,
llvm::function_ref<void(void)> function);
void recordExtensions(const NominalTypeDecl *typeDecl,
const ExtensionDecl *ext);
llvm::ArrayRef<const ExtensionDecl *>
getExtensionsForNominalType(const NominalTypeDecl *typeDecl) const;
private:
ModuleDecl &mod;
const IRGenOptions &irGenOpts;
std::unique_ptr<IRABIDetailsProvider> irABIDetails;
llvm::StringSet<> emittedStubs;
llvm::DenseMap<const NominalTypeDecl *, std::vector<const ExtensionDecl *>>
extensions;
};
} // end namespace swift
#endif
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