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// RUN: %clang_cc1 -verify -fsyntax-only -Wno-objc-root-class %s
@class I0; // expected-note 2{{forward declaration of class here}}
// rdar://6811884
int g0 = sizeof(I0); // expected-error{{invalid application of 'sizeof' to an incomplete type 'I0'}}
// rdar://6821047
void *g3(I0 *P) {
P = P+5; // expected-error {{arithmetic on a pointer to an incomplete type 'I0'}}
return &P[4]; // expected-error{{expected method to read array element not found on object of type 'I0 *'}}
}
@interface I0 {
@public
char x[4];
}
@property int p0;
@end
// size == 4
int g1[ sizeof(I0) // expected-error {{invalid application of 'sizeof' to interface 'I0' in non-fragile ABI}}
== 4 ? 1 : -1];
@implementation I0
@synthesize p0 = _p0;
@end
// size == 4 (we do not include extended properties in the
// sizeof).
int g2[ sizeof(I0) // expected-error {{invalid application of 'sizeof' to interface 'I0' in non-fragile ABI}}
== 4 ? 1 : -1];
@interface I1
@property int p0;
@end
@implementation I1
@synthesize p0 = _p0;
@end
typedef struct { @defs(I1); } I1_defs; // expected-error {{invalid application of @defs in non-fragile ABI}}
// FIXME: This is currently broken due to the way the record layout we
// create is tied to whether we have seen synthesized properties. Ugh.
// int g3[ sizeof(I1) == 0 ? 1 : -1];
// rdar://6821047
int bar(I0 *P) {
P = P+5; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size in non-fragile ABI}}
P = 5+P; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size in non-fragile ABI}}
P = P-5; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size in non-fragile ABI}}
return P[4].x[2]; // expected-error {{expected method to read array element not found on object of type 'I0 *'}}
}
@interface I @end
@interface XCAttributeRunDirectNode
{
@public
unsigned long attributeRuns[1024 + sizeof(I)]; // expected-error {{invalid application of 'sizeof' to interface 'I' in non-fragile ABI}}
int i;
}
@end
@implementation XCAttributeRunDirectNode
- (unsigned long)gatherStats:(id )stats
{
return attributeRuns[i];
}
@end
@interface Foo @end
int foo()
{
Foo *f;
// Both of these crash clang nicely
++f; // expected-error {{arithmetic on pointer to interface 'Foo', which is not a constant size in non-fragile ABI}}
--f; // expected-error {{arithmetic on pointer to interface 'Foo', which is not a constant size in non-fragile ABI}}
}
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