llvm/clang/lib/ARCMigrate/TransProperties.cpp

//===--- TransProperties.cpp - Transformations to ARC mode ----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// rewriteProperties:
//
// - Adds strong/weak/unsafe_unretained ownership specifier to properties that
//   are missing one.
// - Migrates properties from (retain) to (strong) and (assign) to
//   (unsafe_unretained/weak).
// - If a property is synthesized, adds the ownership specifier in the ivar
//   backing the property.
//
//  @interface Foo : NSObject {
//      NSObject *x;
//  }
//  @property (assign) id x;
//  @end
// ---->
//  @interface Foo : NSObject {
//      NSObject *__weak x;
//  }
//  @property (weak) id x;
//  @end
//
//===----------------------------------------------------------------------===//

#include "Transforms.h"
#include "Internals.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Lex/Lexer.h"
#include "clang/Sema/SemaDiagnostic.h"
#include <map>

usingnamespaceclang;
usingnamespacearcmt;
usingnamespacetrans;

namespace {

class PropertiesRewriter { … };

} // anonymous namespace

void PropertyRewriteTraverser::traverseObjCImplementation(
                                           ObjCImplementationContext &ImplCtx) { … }