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67 lines
1.6 KiB
67 lines
1.6 KiB
9 years ago
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/*
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* Copyright (c) 2015 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <Foundation/Foundation.h>
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@interface B : NSObject
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+ foo:(id) obj;
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@end
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@implementation B
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+ (B*) foo:(id) obj
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{
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return obj;
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}
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@end
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@interface A : NSObject
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- (NSMutableArray *) allResultsList: (NSArray *) allResults;
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@end
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@implementation A
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// From a diff
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- (NSMutableArray *) allResultsList: (NSArray *) allResults {
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NSMutableArray *resultsList = [[NSMutableArray alloc] init];
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[allResults enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
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id *result = [B foo:obj];
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if (result != nil) {
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[resultsList addObject:result];
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}
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}];
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return resultsList;
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}
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// How that code is translated in INFER
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- (void) foo1: (NSArray*) a {
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NSArray *objects = a;
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NSMutableArray *resultsList = [[NSMutableArray alloc] init];
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void (^enumerateObjectsUsingBlock)(id, NSUInteger, BOOL* ) =
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^(id obj, NSUInteger idx, BOOL* stop) {
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id *result = [B foo:obj];
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if (result != nil) {
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[resultsList addObject:result];
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}
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};
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BOOL *stop = malloc(sizeof(BOOL));
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*stop = NO;
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for (NSUInteger idx = 0; idx < objects.count; idx++) {
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id object = objects[idx];
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enumerateObjectsUsingBlock(object, idx, stop);
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if ( *stop == YES) break;
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}
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free(stop);
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}
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@end
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