File: explain-svals.m

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (71 lines) | stat: -rw-r--r-- 2,660 bytes parent folder | download | duplicates (11)
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
// RUN: %clang_analyze_cc1 -w -triple i386-apple-darwin10 -fblocks -verify %s \
// RUN:   -analyzer-checker=core.builtin \
// RUN:   -analyzer-checker=debug.ExprInspection \
// RUN:   -analyzer-config display-checker-name=false

#include "Inputs/system-header-simulator-objc.h"

void clang_analyzer_explain(void *);

@interface Object : NSObject {
@public
  Object *x;
}
@end

void test_1(Object *p) {
  clang_analyzer_explain(p); // expected-warning-re{{{{^argument 'p'$}}}}
  clang_analyzer_explain(p->x); // expected-warning-re{{{{^initial value of instance variable 'x' of object at argument 'p'$}}}}
  Object *q = [[Object alloc] init];
  clang_analyzer_explain(q); // expected-warning-re{{{{^symbol of type 'Object \*' conjured at statement '\[\[Object alloc\] init\]'$}}}}
  clang_analyzer_explain(q->x); // expected-warning-re{{{{^initial value of instance variable 'x' of object at symbol of type 'Object \*' conjured at statement '\[\[Object alloc\] init\]'$}}}}
}

void test_2(void) {
  __block int x;
  ^{
    clang_analyzer_explain(&x); // expected-warning-re{{{{^pointer to block variable 'x'$}}}}
  };
  clang_analyzer_explain(&x); // expected-warning-re{{{{^pointer to block variable 'x'$}}}}
}

@interface O
+ (instancetype)top_level_class_method:(int)param;
+ (instancetype)non_top_level_class_method:(int)param;
- top_level_instance_method:(int)param;
- non_top_level_instance_method:(int)param;
@end

@implementation O
+ (instancetype)top_level_class_method:(int)param {
  clang_analyzer_explain(&param); // expected-warning-re{{{{^pointer to parameter 'param'$}}}}
}

+ (instancetype)non_top_level_class_method:(int)param {
  clang_analyzer_explain(&param); // expected-warning-re{{{{^pointer to parameter 'param'$}}}}
}

- top_level_instance_method:(int)param {
  clang_analyzer_explain(&param); // expected-warning-re{{{{^pointer to parameter 'param'$}}}}
}

- non_top_level_instance_method:(int)param {
  clang_analyzer_explain(&param); // expected-warning-re{{{{^pointer to parameter 'param'$}}}}
}
@end

void test_3(int n, int m) {
  O *o = [O non_top_level_class_method:n];
  [o non_top_level_instance_method:m];

  void (^block_top_level)(int) = ^(int param) {
    clang_analyzer_explain(&param); // expected-warning-re{{{{^pointer to parameter 'param'$}}}}
    clang_analyzer_explain(&n);     // expected-warning-re{{{{^pointer to parameter 'n'$}}}}
  };
  void (^block_non_top_level)(int) = ^(int param) {
    clang_analyzer_explain(&param); // expected-warning-re{{{{^pointer to parameter 'param'$}}}}
    clang_analyzer_explain(&n);     // expected-warning-re{{{{^pointer to parameter 'n'$}}}}
  };

  block_non_top_level(n);
}