infer_clone/infer/tests/codetoanalyze/objc/errors/npe/nullable.m

/*
 * Copyright (c) 2015 - present Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

#import <Foundation/NSString.h>

@interface A : NSObject {
 @public
  int fld;
}

@end

@interface B : NSObject

@property int prop;

- (void)method;

@end

int derefNullableParamDirect(A* __nullable param) { return param->fld; }

int derefNullableParamIndirect(A* __nullable param) {
  A* local = param;
  return local->fld;
}

A* derefNullableParamOk(A* __nullable param) {
  if (!param)
    param = [A new];
  param->fld = 7;
  return param;
}

int readNullableParamPropertyOk(B* __nullable param) { return param.prop; }

void writeNullableParamPropertyOk(B* __nullable param) { param.prop = 7; }

void methodCallOnNullableParamOk(B* __nullable param) { [param method]; }