1// Copyright © 2021 650 Industries. All rights reserved.
2
3#import <EXJSONUtils/NSDictionary+EXJSONUtils.h>
4
5#define EXGetNonNullManifestValue(Type, key) \
6({ \
7  id value = [self objectForKey:key]; \
8  NSAssert(value != nil, @"Value for (key = %@) should not be null", key); \
9  NSAssert([value isKindOfClass:[Type class]], @"Value for (key = %@) should be a %@", key, NSStringFromClass([Type class])); \
10  value; \
11})
12
13#define EXGetNullableManifestValue(Type, key) \
14({ \
15  id value = [self objectForKey:key]; \
16  NSAssert(!value || [value isKindOfClass:[Type class]], @"Value for (key = %@) should be a %@ or null", key, NSStringFromClass([Type class])); \
17  value; \
18})
19
20@implementation NSDictionary (EXJSONUtils)
21
22- (NSString *)stringForKey:(NSString *)key {
23  return EXGetNonNullManifestValue(NSString, key);
24}
25
26- (nullable NSString *)nullableStringForKey:(NSString *)key {
27  return EXGetNullableManifestValue(NSString, key);
28}
29
30- (NSNumber *)numberForKey:(NSString *)key {
31  return EXGetNonNullManifestValue(NSNumber, key);
32}
33
34- (nullable NSNumber *)nullableNumberForKey:(NSString *)key {
35  return EXGetNullableManifestValue(NSNumber, key);
36}
37
38- (NSArray *)arrayForKey:(NSString *)key {
39  return EXGetNonNullManifestValue(NSArray, key);
40}
41
42- (nullable NSArray *)nullableArrayForKey:(NSString *)key {
43  return EXGetNullableManifestValue(NSArray, key);
44}
45
46- (NSDictionary *)dictionaryForKey:(NSString *)key {
47  return EXGetNonNullManifestValue(NSDictionary, key);
48}
49
50- (nullable NSDictionary *)nullableDictionaryForKey:(NSString *)key {
51  return EXGetNullableManifestValue(NSDictionary, key);
52}
53
54@end
55