1  
 2  #import "tpctl-objc.h"
 3  
 4  @implementation TPCTLObjectiveC
 5  
 6  + (BOOL)catchNSException:(void(^)(void))block error:(NSError**)error {
 7      @try {
 8          block();
 9          return true;
10      }
11      @catch(NSException* exception) {
12          if(error) {
13              NSMutableDictionary* ui = exception.userInfo ? [exception.userInfo mutableCopy] : [NSMutableDictionary dictionary];
14              if(exception.reason) {
15                  ui[NSLocalizedDescriptionKey] = exception.reason;
16              }
17              *error = [NSError errorWithDomain:exception.name code:0 userInfo:ui];
18          }
19          return false;
20      }
21  }
22  
23  + (NSString* _Nullable)jsonSerialize:(id)something error:(NSError**)error {
24      @try {
25          NSError* localError = nil;
26          NSData* jsonData = [NSJSONSerialization dataWithJSONObject:something options:(NSJSONWritingPrettyPrinted | NSJSONWritingSortedKeys) error:&localError];
27          if(!jsonData || localError) {
28              if(error) {
29                  *error = localError;
30              }
31              return nil;
32          }
33  
34          NSString* utf8String = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
35          if(!utf8String) {
36              if(error) {
37                  *error = [NSError errorWithDomain:@"text" code:0 userInfo:@{NSLocalizedDescriptionKey: @"JSON data could not be decoded as UTF8"}];
38              }
39              return nil;
40          }
41          return utf8String;
42      }
43      @catch(NSException* exception) {
44          if(error) {
45              NSMutableDictionary* ui = exception.userInfo ? [exception.userInfo mutableCopy] : [NSMutableDictionary dictionary];
46              if(exception.reason) {
47                  ui[NSLocalizedDescriptionKey] = exception.reason;
48              }
49              *error = [NSError errorWithDomain:exception.name code:0 userInfo:ui];
50          }
51          return nil;
52      }
53  }
54  
55  @end