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/*
* 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/Foundation.h>
@interface B : NSObject
+ foo:(id) obj;
@end
@implementation B
+ (B*) foo:(id) obj
{
return obj;
}
@end
@interface A : NSObject
- (NSMutableArray *) allResultsList: (NSArray *) allResults;
@end
@implementation A
// From a diff
- (NSMutableArray *) allResultsList: (NSArray *) allResults {
NSMutableArray *resultsList = [[NSMutableArray alloc] init];
[allResults enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
id *result = [B foo:obj];
if (result != nil) {
[resultsList addObject:result];
}
}];
return resultsList;
}
// How that code is translated in INFER
- (void) foo1: (NSArray*) a {
NSArray *objects = a;
NSMutableArray *resultsList = [[NSMutableArray alloc] init];
void (^enumerateObjectsUsingBlock)(id, NSUInteger, BOOL* ) =
^(id obj, NSUInteger idx, BOOL* stop) {
id *result = [B foo:obj];
if (result != nil) {
[resultsList addObject:result];
}
};
BOOL *stop = malloc(sizeof(BOOL));
*stop = NO;
for (NSUInteger idx = 0; idx < objects.count; idx++) {
id object = objects[idx];
enumerateObjectsUsingBlock(object, idx, stop);
if ( *stop == YES) break;
}
free(stop);
}
@end