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67 lines
1.2 KiB
67 lines
1.2 KiB
/*
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* Copyright (c) 2014 - 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 "BlockVar.h"
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@implementation BlockVar
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+ (int)test {
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return 5;
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}
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+ (int)navigateToURLInBackground {
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int (^addBlock)(int a, int b) = ^(int a, int b) {
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int res = [self test];
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return a + b + res;
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};
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int x = addBlock(1, 2);
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int* p = 0;
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if (x == 8)
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return *p;
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else
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return x;
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}
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- (int)blockPostBad {
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int* x = NULL;
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int* (^my_block)(void) = ^() {
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return x;
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};
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return *my_block(); // should report null deref here
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}
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- (int)blockPostOk {
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int i = 7;
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int* x = &i;
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int* (^my_block)(void) = ^() {
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return x;
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};
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return *my_block(); // should not report null deref here
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}
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- (int)capturedNullDeref {
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int* x = NULL;
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int (^my_block)(void) = ^() {
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return *x;
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};
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return my_block(); // should report null deref here
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}
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- (int)capturedNoNullDeref {
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int i = 5;
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int* x = &i;
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int (^my_block)(void) = ^() {
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return *x;
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};
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x = NULL;
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return my_block(); // should not report null deref here
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}
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@end
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