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annotate clang/test/SemaObjC/sign-conversion.m @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children c4bab56944e8
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1 // RUN: %clang_cc1 -fsyntax-only -verify -Wsign-conversion %s
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2 // rdar://13855394
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3
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4 typedef unsigned int NSUInteger;
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5
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6 @interface NSObject
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7 - new;
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8 - (NSUInteger)hash;
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9 @end
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10
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11 @interface X : NSObject
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12 @property NSUInteger uint;
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13 @end
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14
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15 @interface NSArray : NSObject
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16
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17 - (NSUInteger)count;
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18 - (id)objectAtIndex:(NSUInteger)index;
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19 - (id)objectAtIndexedSubscript:(NSUInteger)index;
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20
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21 @end
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22
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23 void foo() {
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24 X *x = [X new];
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25 signed int sint = -1;
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26 [x setUint:sint]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
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27 x.uint = sint; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
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28 }
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29
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30 // rdar://13855682
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31 void Test1() {
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32 signed int si = -1;
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33 NSArray *array;
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34
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35 (void)((NSObject*)array[si]).hash; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
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36
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37 (void)[((NSObject*)array[si]) hash]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
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38 (void)array[si]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
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39 }