forked from OSchip/llvm-project
126 lines
3.0 KiB
Plaintext
126 lines
3.0 KiB
Plaintext
// RUN: %check_clang_tidy %s bugprone-infinite-loop %t -- -- -fblocks
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// RUN: %check_clang_tidy %s bugprone-infinite-loop %t -- -- -fblocks -fobjc-arc
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typedef __typeof(sizeof(int)) NSUInteger;
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@interface NSArray
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+(instancetype)alloc;
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-(instancetype)init;
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@property(readonly) NSUInteger count;
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-(void)addObject: (id)anObject;
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@end
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@interface I
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-(void) instanceMethod;
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+(void) classMethod;
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+(instancetype)alloc;
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-(instancetype)init;
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@end
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void plainCFunction() {
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int i = 0;
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int j = 0;
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while (i < 10) {
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// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this loop is infinite; none of its condition variables (i) are updated in the loop body [bugprone-infinite-loop]
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j++;
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}
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}
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@implementation I
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- (void)instanceMethod {
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int i = 0;
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int j = 0;
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while (i < 10) {
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// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this loop is infinite; none of its condition variables (i) are updated in the loop body [bugprone-infinite-loop]
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j++;
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}
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}
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+ (void)classMethod {
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int i = 0;
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int j = 0;
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while (i < 10) {
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// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: this loop is infinite; none of its condition variables (i) are updated in the loop body [bugprone-infinite-loop]
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j++;
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}
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}
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@end
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void testArrayCount() {
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NSArray *arr = [[NSArray alloc] init];
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NSUInteger max_count = 10;
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while ([arr count] < max_count) {
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// No warning. Array count is updated on every iteration.
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[arr addObject: [[I alloc] init]];
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}
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}
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void testArrayCountWithConstant() {
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NSArray *arr = [[NSArray alloc] init];
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while ([arr count] < 10) {
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// No warning. Array count is updated on every iteration.
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[arr addObject: [[I alloc] init]];
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}
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}
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void testArrayCountProperty() {
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NSArray *arr = [[NSArray alloc] init];
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NSUInteger max_count = 10;
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while (arr.count < max_count) {
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// No warning. Array count is updated on every iteration.
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[arr addObject: [[I alloc] init]];
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}
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}
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void testArrayCountPropertyWithConstant() {
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NSArray *arr = [[NSArray alloc] init];
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while (arr.count < 10) {
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// No warning. Array count is updated on every iteration.
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[arr addObject: [[I alloc] init]];
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}
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}
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@interface MyArray {
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@public NSUInteger _count;
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}
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+(instancetype)alloc;
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-(instancetype)init;
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-(void)addObject: (id)anObject;
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-(void)populate;
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@end
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@implementation MyArray
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-(void)populate {
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NSUInteger max_count = 10;
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while (_count < max_count) {
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// No warning. Array count is updated on every iteration.
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[self addObject: [[I alloc] init]];
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}
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}
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-(void)populateWithConstant {
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while (_count < 10) {
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// No warning. Array count is updated on every iteration.
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[self addObject: [[I alloc] init]];
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}
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}
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@end
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void testArrayCountIvar() {
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MyArray *arr = [[MyArray alloc] init];
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NSUInteger max_count = 10;
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while (arr->_count < max_count) {
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// No warning. Array count is updated on every iteration.
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[arr addObject: [[I alloc] init]];
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}
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}
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void testArrayCountIvarWithConstant() {
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MyArray *arr = [[MyArray alloc] init];
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while (arr->_count < 10) {
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// No warning. Array count is updated on every iteration.
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[arr addObject: [[I alloc] init]];
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}
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}
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