250 lines
11 KiB
Objective-C
250 lines
11 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin -Wformat-nonliteral -fsyntax-only -fblocks -verify -Wno-objc-root-class %s
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// The following code is reduced using delta-debugging from
|
|
// Foundation.h (Mac OS X).
|
|
//
|
|
// It includes the basic definitions for the test cases below.
|
|
// Not including Foundation.h directly makes this test case both svelt and
|
|
// portable to non-Mac platforms.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include <stdarg.h>
|
|
|
|
typedef signed char BOOL;
|
|
typedef unsigned int NSUInteger;
|
|
typedef long NSInteger;
|
|
@class NSString, Protocol;
|
|
extern void NSLog(NSString *format, ...);
|
|
extern void NSLogv(NSString *format, va_list args);
|
|
typedef struct _NSZone NSZone;
|
|
@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
|
|
@protocol NSObject - (BOOL)isEqual:(id)object; @end
|
|
@protocol NSCopying - (id)copyWithZone:(NSZone *)zone; @end
|
|
@protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone; @end
|
|
@protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; @end
|
|
@interface NSObject <NSObject> {} @end
|
|
typedef float CGFloat;
|
|
@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; @end
|
|
@interface NSSimpleCString : NSString {} @end
|
|
@interface NSConstantString : NSSimpleCString @end
|
|
extern void *_NSConstantStringClassReference;
|
|
|
|
typedef const struct __CFString * CFStringRef;
|
|
extern void CFStringCreateWithFormat(CFStringRef format, ...) __attribute__((format(CFString, 1, 2)));
|
|
#define CFSTR(cStr) ((CFStringRef) __builtin___CFStringMakeConstantString ("" cStr ""))
|
|
|
|
// This function is used instead of the builtin if -fno-constant-cfstrings.
|
|
// The definition on Mac OS X is NOT annotated with format_arg as of 10.8,
|
|
// but clang will implicitly add the attribute if it's not written.
|
|
extern CFStringRef __CFStringMakeConstantString(const char *);
|
|
|
|
int printf(const char * restrict, ...) ;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Test cases.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
void check_nslog(unsigned k) {
|
|
NSLog(@"%d%%", k); // no-warning
|
|
NSLog(@"%s%lb%d", "unix", 10,20); // expected-warning {{invalid conversion specifier 'b'}}
|
|
}
|
|
|
|
// Check type validation
|
|
extern void NSLog2(int format, ...) __attribute__((format(__NSString__, 1, 2))); // expected-error {{format argument not an NSString}}
|
|
extern void CFStringCreateWithFormat2(int *format, ...) __attribute__((format(CFString, 1, 2))); // expected-error {{format argument not a CFString}}
|
|
|
|
// <rdar://problem/7068334> - Catch use of long long with int arguments.
|
|
void rdar_7068334() {
|
|
long long test = 500;
|
|
printf("%i ",test); // expected-warning{{format specifies type 'int' but the argument has type 'long long'}}
|
|
NSLog(@"%i ",test); // expected-warning{{format specifies type 'int' but the argument has type 'long long'}}
|
|
CFStringCreateWithFormat(CFSTR("%i"),test); // expected-warning{{format specifies type 'int' but the argument has type 'long long'}}
|
|
}
|
|
|
|
// <rdar://problem/7697748>
|
|
void rdar_7697748() {
|
|
NSLog(@"%@!"); // expected-warning{{more '%' conversions than data arguments}}
|
|
}
|
|
|
|
@protocol Foo;
|
|
|
|
void test_p_conversion_with_objc_pointer(id x, id<Foo> y) {
|
|
printf("%p", x); // no-warning
|
|
printf("%p", y); // no-warning
|
|
}
|
|
|
|
// <rdar://problem/10696348>, PR 10274 - CFString and NSString formats are ignored
|
|
extern void MyNSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2)));
|
|
extern void MyCFStringCreateWithFormat(CFStringRef format, ...) __attribute__((format(__CFString__, 1, 2)));
|
|
|
|
void check_mylog() {
|
|
MyNSLog(@"%@"); // expected-warning {{more '%' conversions than data arguments}}
|
|
MyCFStringCreateWithFormat(CFSTR("%@")); // expected-warning {{more '%' conversions than data arguments}}
|
|
}
|
|
|
|
// PR 10275 - format function attribute isn't checked in Objective-C methods
|
|
@interface Foo
|
|
+ (id)fooWithFormat:(NSString *)fmt, ... __attribute__((format(__NSString__, 1, 2)));
|
|
+ (id)fooWithCStringFormat:(const char *)format, ... __attribute__((format(__printf__, 1, 2)));
|
|
@end
|
|
|
|
void check_method() {
|
|
[Foo fooWithFormat:@"%@"]; // expected-warning {{more '%' conversions than data arguments}}
|
|
[Foo fooWithCStringFormat:"%@"]; // expected-warning {{invalid conversion specifier '@'}}
|
|
}
|
|
|
|
// Warn about using BOOL with %@
|
|
void rdar10743758(id x) {
|
|
NSLog(@"%@ %@", x, (BOOL) 1); // expected-warning {{format specifies type 'id' but the argument has type 'BOOL' (aka 'signed char')}}
|
|
}
|
|
|
|
NSString *test_literal_propagation(void) {
|
|
const char * const s1 = "constant string %s"; // expected-note {{format string is defined here}}
|
|
printf(s1); // expected-warning {{more '%' conversions than data arguments}}
|
|
const char * const s5 = "constant string %s"; // expected-note {{format string is defined here}}
|
|
const char * const s2 = s5;
|
|
printf(s2); // expected-warning {{more '%' conversions than data arguments}}
|
|
|
|
const char * const s3 = (const char *)0;
|
|
printf(s3); // no-warning (NULL is a valid format string)
|
|
|
|
NSString * const ns1 = @"constant string %s"; // expected-note {{format string is defined here}}
|
|
NSLog(ns1); // expected-warning {{more '%' conversions than data arguments}}
|
|
NSString * const ns5 = @"constant string %s"; // expected-note {{format string is defined here}}
|
|
NSString * const ns2 = ns5;
|
|
NSLog(ns2); // expected-warning {{more '%' conversions than data arguments}}
|
|
NSString * ns3 = ns1;
|
|
NSLog(ns3); // expected-warning {{format string is not a string literal}}}
|
|
}
|
|
|
|
// Do not emit warnings when using NSLocalizedString
|
|
#include "format-strings-system.h"
|
|
|
|
// Test it inhibits diag only for macros in system headers
|
|
#define MyNSLocalizedString(key) GetLocalizedString(key)
|
|
#define MyNSAssert(fmt, arg) NSLog(fmt, arg, 0, 0)
|
|
|
|
void check_NSLocalizedString() {
|
|
[Foo fooWithFormat:NSLocalizedString(@"format"), @"arg"]; // no-warning
|
|
[Foo fooWithFormat:MyNSLocalizedString(@"format"), @"arg"]; // expected-warning {{format string is not a string literal}}}
|
|
}
|
|
|
|
void check_NSAssert() {
|
|
NSAssert(@"Hello %@", @"World"); // no-warning
|
|
MyNSAssert(@"Hello %@", @"World"); // expected-warning {{data argument not used by format string}}
|
|
}
|
|
|
|
typedef __WCHAR_TYPE__ wchar_t;
|
|
|
|
// Test that %S, %C, %ls check for 16 bit types in ObjC strings, as described at
|
|
// http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html#//apple_ref/doc/uid/TP40004265
|
|
|
|
void test_percent_S() {
|
|
const unsigned short data[] = { 'a', 'b', 0 };
|
|
const unsigned short* ptr = data;
|
|
NSLog(@"%S", ptr); // no-warning
|
|
|
|
const wchar_t* wchar_ptr = L"ab";
|
|
NSLog(@"%S", wchar_ptr); // expected-warning{{format specifies type 'const unichar *' (aka 'const unsigned short *') but the argument has type 'const wchar_t *'}}
|
|
}
|
|
|
|
void test_percent_ls() {
|
|
const unsigned short data[] = { 'a', 'b', 0 };
|
|
const unsigned short* ptr = data;
|
|
NSLog(@"%ls", ptr); // no-warning
|
|
|
|
const wchar_t* wchar_ptr = L"ab";
|
|
NSLog(@"%ls", wchar_ptr); // expected-warning{{format specifies type 'const unichar *' (aka 'const unsigned short *') but the argument has type 'const wchar_t *'}}
|
|
}
|
|
|
|
void test_percent_C() {
|
|
const unsigned short data = 'a';
|
|
NSLog(@"%C", data); // no-warning
|
|
|
|
const wchar_t wchar_data = L'a';
|
|
NSLog(@"%C", wchar_data); // expected-warning{{format specifies type 'unichar' (aka 'unsigned short') but the argument has type 'wchar_t'}}
|
|
}
|
|
|
|
// Test that %@ works with toll-free bridging (<rdar://problem/10814120>).
|
|
void test_toll_free_bridging(CFStringRef x, id y) {
|
|
NSLog(@"%@", x); // no-warning
|
|
CFStringCreateWithFormat(CFSTR("%@"), x); // no-warning
|
|
|
|
NSLog(@"%@", y); // no-warning
|
|
CFStringCreateWithFormat(CFSTR("%@"), y); // no-warning
|
|
}
|
|
|
|
@interface Bar
|
|
+ (void)log:(NSString *)fmt, ...;
|
|
+ (void)log2:(NSString *)fmt, ... __attribute__((format(NSString, 1, 2)));
|
|
@end
|
|
|
|
@implementation Bar
|
|
|
|
+ (void)log:(NSString *)fmt, ... {
|
|
va_list ap;
|
|
va_start(ap,fmt);
|
|
NSLogv(fmt, ap); // expected-warning{{format string is not a string literal}}
|
|
va_end(ap);
|
|
}
|
|
|
|
+ (void)log2:(NSString *)fmt, ... {
|
|
va_list ap;
|
|
va_start(ap,fmt);
|
|
NSLogv(fmt, ap); // no-warning
|
|
va_end(ap);
|
|
}
|
|
|
|
@end
|
|
|
|
|
|
// Test that it is okay to use %p with the address of a block.
|
|
void rdar11049844_aux();
|
|
int rdar11049844() {
|
|
typedef void (^MyBlock)(void);
|
|
MyBlock x = ^void() { rdar11049844_aux(); };
|
|
printf("%p", x); // no-warning
|
|
}
|
|
|
|
void test_nonBuiltinCFStrings() {
|
|
CFStringCreateWithFormat(__CFStringMakeConstantString("%@"), 1); // expected-warning{{format specifies type 'id' but the argument has type 'int'}}
|
|
}
|
|
|
|
|
|
// Don't crash on an invalid argument expression.
|
|
// <rdar://problem/11890818>
|
|
@interface NSDictionary : NSObject
|
|
- (id)objectForKeyedSubscript:(id)key;
|
|
@end
|
|
|
|
void testInvalidFormatArgument(NSDictionary *dict) {
|
|
NSLog(@"no specifiers", dict[CFSTR("abc")]); // expected-error{{indexing expression is invalid because subscript type 'CFStringRef' (aka 'const struct __CFString *') is not an integral or Objective-C pointer type}}
|
|
NSLog(@"%@", dict[CFSTR("abc")]); // expected-error{{indexing expression is invalid because subscript type 'CFStringRef' (aka 'const struct __CFString *') is not an integral or Objective-C pointer type}}
|
|
NSLog(@"%@ %@", dict[CFSTR("abc")]); // expected-error{{indexing expression is invalid because subscript type 'CFStringRef' (aka 'const struct __CFString *') is not an integral or Objective-C pointer type}}
|
|
|
|
[Foo fooWithFormat:@"no specifiers", dict[CFSTR("abc")]]; // expected-error{{indexing expression is invalid because subscript type 'CFStringRef' (aka 'const struct __CFString *') is not an integral or Objective-C pointer type}}
|
|
[Foo fooWithFormat:@"%@", dict[CFSTR("abc")]]; // expected-error{{indexing expression is invalid because subscript type 'CFStringRef' (aka 'const struct __CFString *') is not an integral or Objective-C pointer type}}
|
|
[Foo fooWithFormat:@"%@ %@", dict[CFSTR("abc")]]; // expected-error{{indexing expression is invalid because subscript type 'CFStringRef' (aka 'const struct __CFString *') is not an integral or Objective-C pointer type}} expected-warning{{more '%' conversions than data arguments}}
|
|
}
|
|
|
|
|
|
// <rdar://problem/11825593>
|
|
void testByValueObjectInFormat(Foo *obj) {
|
|
printf("%d %d %d", 1L, *obj, 1L); // expected-error {{cannot pass object with interface type 'Foo' by value to variadic function; expected type from format string was 'int'}} expected-warning 2 {{format specifies type 'int' but the argument has type 'long'}}
|
|
printf("%!", *obj); // expected-error {{cannot pass object with interface type 'Foo' by value through variadic function}} expected-warning {{invalid conversion specifier}}
|
|
printf(0, *obj); // expected-error {{cannot pass object with interface type 'Foo' by value through variadic function}}
|
|
|
|
[Bar log2:@"%d", *obj]; // expected-error {{cannot pass object with interface type 'Foo' by value to variadic method; expected type from format string was 'int'}}
|
|
}
|
|
|
|
// <rdar://problem/13557053>
|
|
void testTypeOf(NSInteger dW, NSInteger dH) {
|
|
NSLog(@"dW %d dH %d",({ __typeof__(dW) __a = (dW); __a < 0 ? -__a : __a; }),({ __typeof__(dH) __a = (dH); __a < 0 ? -__a : __a; })); // expected-warning 2 {{values of type 'NSInteger' should not be used as format arguments; add an explicit cast to 'long' instead}}
|
|
}
|
|
|
|
void testUnicode() {
|
|
NSLog(@"%C", 0x2022); // no-warning
|
|
NSLog(@"%C", 0x202200); // expected-warning{{format specifies type 'unichar' (aka 'unsigned short') but the argument has type 'int'}}
|
|
}
|
|
|