fa755d3e71
Compute and propagate conversion kind to diagnostics helper in C++ to provide more specific diagnostics about incorrect implicit conversions in assignments, initializations, params, etc... Duplicated some diagnostics as errors because C++ is more strict. Tags: #clang Differential Revision: https://reviews.llvm.org/D74116
79 lines
2.6 KiB
Plaintext
79 lines
2.6 KiB
Plaintext
// RUN: %clang_cc1 -fsyntax-only -verify -fobjc-exceptions %s
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@interface NSException
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@end
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// @throw
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template<typename T>
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void throw_test(T value) {
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@throw value; // expected-error{{@throw requires an Objective-C object type ('int' invalid)}}
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}
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template void throw_test(NSException *);
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template void throw_test(int); // expected-note{{in instantiation of}}
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// @synchronized
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template<typename T>
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void synchronized_test(T value) {
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@synchronized (value) { // expected-error{{@synchronized requires an Objective-C object type ('int' invalid)}}
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value = 0;
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}
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}
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template void synchronized_test(NSException *);
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template void synchronized_test(int); // expected-note{{in instantiation of}}
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// fast enumeration
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@interface NSArray
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- (unsigned int)countByEnumeratingWithState: (struct __objcFastEnumerationState *)state objects: (id *)items count:(unsigned int)stackcount;
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@end
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@interface NSString
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@end
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struct vector {};
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template<typename T> void eat(T);
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template<typename E, typename T>
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void fast_enumeration_test(T collection) {
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for (E element in collection) { // expected-error{{selector element type 'int' is not a valid object}} \
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// expected-error{{the type 'vector' is not a pointer to a fast-enumerable object}}
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eat(element);
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}
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E element;
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for (element in collection) // expected-error{{selector element type 'int' is not a valid object}} \
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// expected-error{{the type 'vector' is not a pointer to a fast-enumerable object}}
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eat(element);
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for (NSString *str in collection) // expected-error{{the type 'vector' is not a pointer to a fast-enumerable object}}
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eat(str);
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NSString *str;
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for (str in collection) // expected-error{{the type 'vector' is not a pointer to a fast-enumerable object}}
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eat(str);
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}
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template void fast_enumeration_test<NSString *>(NSArray*);
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template void fast_enumeration_test<int>(NSArray*); // expected-note{{in instantiation of}}
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template void fast_enumeration_test<NSString *>(vector); // expected-note{{in instantiation of}}
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// @try/@catch/@finally
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template<typename T, typename U>
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void try_catch_finally_test(U value) {
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@try {
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value = 1; // expected-error{{incompatible integer to pointer conversion assigning to 'int *' from 'int'}}
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}
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@catch (T obj) { // expected-error{{@catch parameter is not a pointer to an interface type}}
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id x = obj;
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} @finally {
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value = 0;
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}
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}
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template void try_catch_finally_test<NSString *>(int);
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template void try_catch_finally_test<NSString *>(int*); // expected-note{{in instantiation of}}
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template void try_catch_finally_test<NSString>(int); // expected-note{{in instantiation of function template specialization 'try_catch_finally_test<NSString, int>' requested here}}
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