blob: 08d4a195431d28d813c7de829eb2c4cc0bda3b2f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -w -analyze -analyzer-checker=osx.NumberObjectConversion %s -verify
// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -w -analyze -analyzer-checker=osx.NumberObjectConversion -analyzer-config osx.NumberObjectConversion:Pedantic=true -DPEDANTIC %s -verify
// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -fobjc-arc -w -analyze -analyzer-checker=osx.NumberObjectConversion %s -verify
// RUN: %clang_cc1 -triple i386-apple-darwin10 -fblocks -fobjc-arc -w -analyze -analyzer-checker=osx.NumberObjectConversion -analyzer-config osx.NumberObjectConversion:Pedantic=true -DPEDANTIC %s -verify
#include "Inputs/system-header-simulator-objc.h"
void takes_boolean(BOOL);
void takes_integer(int);
void bad(NSNumber *p) {
#ifdef PEDANTIC
if (p) {} // expected-warning{{Converting a pointer value of type 'NSNumber *' to a primitive boolean value; instead, either compare the pointer to nil or call -boolValue}}
if (!p) {} // expected-warning{{Converting a pointer value of type 'NSNumber *' to a primitive boolean value; instead, either compare the pointer to nil or call -boolValue}}
(!p) ? 1 : 2; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a primitive boolean value; instead, either compare the pointer to nil or call -boolValue}}
if (p == 0) {} // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a scalar integer value; instead, either compare the pointer to nil or compare the result of calling a method on 'NSNumber *' to get the scalar value}}
#else
if (p) {} // no-warning
if (!p) {} // no-warning
(!p) ? 1 : 2; // no-warning
if (p == 0) {} // no-warning
#endif
(BOOL)p; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to call -boolValue?}}
if (p > 0) {} // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to compare the result of calling a method on 'NSNumber *' to get the scalar value?}}
if (p == YES) {} // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to compare the result of calling -boolValue?}}
if (p == NO) {} // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to compare the result of calling -boolValue?}}
BOOL x = p; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to call -boolValue?}}
x = p; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to call -boolValue?}}
x = (p == YES); // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to compare the result of calling -boolValue?}}
if (p == 1) {} // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to compare the result of calling a method on 'NSNumber *' to get the scalar value?}}
int y = p; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to call a method on 'NSNumber *' to get the scalar value?}}
y = p; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to call a method on 'NSNumber *' to get the scalar value?}}
takes_boolean(p); // expected-warning{{Converting a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to call -boolValue?}}
takes_integer(p); // expected-warning{{Converting a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to call a method on 'NSNumber *' to get the scalar value?}}
takes_boolean(x); // no-warning
takes_integer(y); // no-warning
}
typedef NSNumber *SugaredNumber;
void bad_sugared(SugaredNumber p) {
p == YES; // expected-warning{{Comparing a pointer value of type 'SugaredNumber' to a primitive BOOL value; did you mean to compare the result of calling -boolValue?}}
}
@interface I : NSObject {
@public
NSNumber *ivar;
NSNumber *prop;
}
- (NSNumber *)foo;
@property(copy) NSNumber *prop;
@end
@implementation I
@synthesize prop;
@end
void bad_ivar(I *i) {
i->ivar == YES; // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to compare the result of calling -boolValue?}}
i->prop == YES; // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to compare the result of calling -boolValue?}}
[i foo] == YES; // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a primitive BOOL value; did you mean to compare the result of calling -boolValue?}}
}
void good(NSNumber *p) {
if ([p boolValue] == NO) {} // no-warning
if ([p boolValue] == YES) {} // no-warning
BOOL x = [p boolValue]; // no-warning
}
void suppression(NSNumber *p) {
if (p == NULL) {} // no-warning
if (p == nil) {} // no-warning
}
// Conversion of a pointer to an intptr_t is fine.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long fintptr_t; // Fake, for testing the regex.
void test_intptr_t(NSNumber *p) {
(long)p; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to call a method on 'NSNumber *' to get the scalar value?}}
(intptr_t)p; // no-warning
(unsigned long)p; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to call a method on 'NSNumber *' to get the scalar value?}}
(uintptr_t)p; // no-warning
(fintptr_t)p; // expected-warning{{Converting a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to call a method on 'NSNumber *' to get the scalar value?}}
}
// Test macro suppressions.
#define FOO 0
#define BAR 1
void test_macro(NSNumber *p) {
if (p != BAR) {} // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a scalar integer value; did you mean to compare the result of calling a method on 'NSNumber *' to get the scalar value?}}
#ifdef PEDANTIC
if (p != FOO) {} // expected-warning{{Comparing a pointer value of type 'NSNumber *' to a scalar integer value; instead, either compare the pointer to nil or compare the result of calling a method on 'NSNumber *' to get the scalar value}}
#else
if (p != FOO) {} // no-warning
#endif
}
#define NULL_INSIDE_MACRO NULL
void test_NULL_inside_macro(NSNumber *p) {
#ifdef PEDANTIC
if (p == NULL_INSIDE_MACRO) {} // no-warning
#else
if (p == NULL_INSIDE_MACRO) {} // no-warning
#endif
}
// Test a different definition of NULL.
#undef NULL
#define NULL 0
void test_non_pointer_NULL(NSNumber *p) {
if (p == NULL) {} // no-warning
}
|
