llvm-capstone/clang/test/SemaObjC/sizeof-interface.m
Aaron Ballman 0f1c1be196 [clang] Remove rdar links; NFC
We have a new policy in place making links to private resources
something we try to avoid in source and test files. Normally, we'd
organically switch to the new policy rather than make a sweeping change
across a project. However, Clang is in a somewhat special circumstance
currently: recently, I've had several new contributors run into rdar
links around test code which their patch was changing the behavior of.
This turns out to be a surprisingly bad experience, especially for
newer folks, for a handful of reasons: not understanding what the link
is and feeling intimidated by it, wondering whether their changes are
actually breaking something important to a downstream in some way,
having to hunt down strangers not involved with the patch to impose on
them for help, accidental pressure from asking for potentially private
IP to be made public, etc. Because folks run into these links entirely
by chance (through fixing bugs or working on new features), there's not
really a set of problematic links to focus on -- all of the links have
basically the same potential for causing these problems. As a result,
this is an omnibus patch to remove all such links.

This was not a mechanical change; it was done by manually searching for
rdar, radar, radr, and other variants to find all the various
problematic links. From there, I tried to retain or reword the
surrounding comments so that we would lose as little context as
possible. However, because most links were just a plain link with no
supporting context, the majority of the changes are simple removals.

Differential Review: https://reviews.llvm.org/D158071
2023-08-28 12:13:42 -04:00

88 lines
2.6 KiB
Objective-C

// RUN: %clang_cc1 -verify -fsyntax-only -Wno-objc-root-class %s
@class I0; // expected-note 2{{forward declaration of class here}}
int g0 = sizeof(I0); // expected-error{{invalid application of 'sizeof' to an incomplete type 'I0'}}
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 {{application of 'sizeof' to interface 'I0' is not supported on this architecture and platform}}
== 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 {{application of 'sizeof' to interface 'I0' is not supported on this architecture and platform}}
== 4 ? 1 : -1];
@interface I1
@property int p0;
@end
@implementation I1
@synthesize p0 = _p0;
@end
typedef struct { @defs(I1); } I1_defs; // expected-error {{use of @defs is not supported on this architecture and platform}}
// 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];
int bar(I0 *P) {
P = P+5; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}}
P = 5+P; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}}
P = P-5; // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}}
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 {{application of 'sizeof' to interface 'I' is not supported on this architecture and platform}}
int i;
}
@end
@implementation XCAttributeRunDirectNode
- (unsigned long)gatherStats:(id )stats
{
return attributeRuns[i];
}
@end
@interface Foo @end
int foo(void)
{
Foo *f;
// Both of these crash clang nicely
++f; // expected-error {{arithmetic on pointer to interface 'Foo', which is not a constant size for this architecture and platform}}
--f; // expected-error {{arithmetic on pointer to interface 'Foo', which is not a constant size for this architecture and platform}}
}