llvm-project/clang/test/Analysis/refcnt_naming.m
Balazs Benics ffe7950ebc Reland "[analyzer] Deprecate -analyzer-store region flag"
I'm trying to remove unused options from the `Analyses.def` file, then
merge the rest of the useful options into the `AnalyzerOptions.def`.
Then make sure one can set these by an `-analyzer-config XXX=YYY` style
flag.
Then surface the `-analyzer-config` to the `clang` frontend;

After all of this, we can pursue the tablegen approach described
https://discourse.llvm.org/t/rfc-tablegen-clang-static-analyzer-engine-options-for-better-documentation/61488

In this patch, I'm proposing flag deprecations.
We should support deprecated analyzer flags for exactly one release. In
this case I'm planning to drop this flag in `clang-16`.

In the clang frontend, now we won't pass this option to the cc1
frontend, rather emit a warning diagnostic reminding the users about
this deprecated flag, which will be turned into error in clang-16.

Unfortunately, I had to remove all the tests referring to this flag,
causing a mass change. I've also added a test for checking this warning.

I've seen that `scan-build` also uses this flag, but I think we should
remove that part only after we turn this into a hard error.

Reviewed By: martong

Differential Revision: https://reviews.llvm.org/D126215
2022-06-14 09:20:41 +02:00

85 lines
2.3 KiB
Objective-C

// RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.RetainCount,alpha.core -analyzer-config ipa=none -verify %s
typedef const struct __CFString * CFStringRef;
typedef const struct __CFAllocator * CFAllocatorRef;
typedef const struct __CFURL * CFURLRef;
extern CFURLRef CFURLCreateWithString(CFAllocatorRef allocator, CFStringRef URLString, CFURLRef baseURL);
typedef signed char BOOL;
@protocol NSObject - (BOOL)isEqual:(id)object; @end
@interface NSObject <NSObject> {} @end
@class NSArray, NSString, NSURL;
@interface NamingTest : NSObject {}
-(NSObject*)copyPhoto;
-(NSObject*)mutableCopyPhoto;
-(NSObject*)mutable;
-(NSObject*)mutableCopying;
-(NSObject*)photocopy; // read as "photocopy"
-(NSObject*)photoCopy; // read as "photo Copy"
-(NSObject*)__blebPRCopy; // read as "bleb PRCopy"
-(NSObject*)__blebPRcopy; // read as "bleb P Rcopy"
-(NSObject*)new_theprefixdoescount; // read as "new theprefixdoescount"
-(NSObject*)newestAwesomeStuff; // read as "newest awesome stuff"
@end
@interface MyClass : NSObject
{
id myObject;
}
- (NSURL *)myMethod:(NSString *)inString;
- (NSURL *)getMethod:(NSString*)inString;
- (NSURL *)getMethod2:(NSString*)inString;
- (void)addObject:(id) __attribute__((ns_consumed)) X;
- (void)addObject2:(id) X;
@end
@implementation MyClass
- (NSURL *)myMethod:(NSString *)inString
{
NSURL *url = (NSURL *)CFURLCreateWithString(0, (CFStringRef)inString, 0); // expected-warning{{leak}}
return url;
}
- (NSURL *)getMethod:(NSString *)inString
{
NSURL *url = (NSURL *)CFURLCreateWithString(0, (CFStringRef)inString, 0);
[self addObject:url];
return url; // no-warning
}
- (NSURL *)getMethod2:(NSString *)inString
{
NSURL *url = (NSURL *)CFURLCreateWithString(0, (CFStringRef)inString, 0); // expected-warning{{leak}}
[self addObject2:url];
return url;
}
void testNames(NamingTest* x) {
[x copyPhoto]; // expected-warning{{leak}}
[x mutableCopyPhoto]; // expected-warning{{leak}}
[x mutable]; // no-warning
[x mutableCopying]; // no-warning
[x photocopy]; // no-warning
[x photoCopy]; // no-warning
[x __blebPRCopy]; // no-warning
[x __blebPRcopy]; // no-warning
[x new_theprefixdoescount]; // expected-warning{{leak}}
[x newestAwesomeStuff]; // no-warning
}
- (void)addObject:(id)X
{
myObject = X;
}
- (void)addObject2:(id)X
{
myObject = X;
}
@end