//===--- TextualInterfaceGeneration.h - swiftinterface files ----*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2018 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_FRONTENDTOOL_TEXTUALINTERFACEGENERATION_H
#define SWIFT_FRONTENDTOOL_TEXTUALINTERFACEGENERATION_H

#include "swift/Basic/LLVM.h"

namespace swift {

class ModuleDecl;

/// Emit a stable, textual interface for \p M, which can be used by a client
/// source file to import this module.
///
/// Unlike a serialized module, the textual format generated by
/// emitModuleInterface is intended to be stable across compiler versions while
/// still describing the full ABI of the module in question.
///
/// The initial plan for this format can be found at
/// https://forums.swift.org/t/plan-for-module-stability/14551/
///
/// \return true if an error occurred
///
/// \sa swift::serialize
bool emitModuleInterface(raw_ostream &out, ModuleDecl *M);

} // end namespace swift

#endif